15 July

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 02:12
  No such file error using pydub on OSX with pycharm - Michael Harrison Newest 'ffmpeg' Questions - Stack Overflow
  My ultimate aim is to run the code snippet below on Lambda but as I was having difficulties, I tried running it on my mac. I get the same error running with python2.7 on OSX as I do when I run it on AWS lambda. The code is: from pydub import AudioSegment import os def test(): print("Starting") files = [f for f in os.listdir('.') if os.path.isfile(f)] for f in files: print (f) sound = AudioSegment.from_mp3("test.mp3") test() The output of the code from pycharm (...)
• 01:37
  ffmpeg separate images from %3.png format - Alexander Wilkinson Newest 'ffmpeg' Questions - Stack Overflow
  I want to feed an input -i input%3.png into a filter graph and then use those inputs in a -filter_complex like I normally would with [x:v] or [0:v:x] where x is the index. Both of those don't work, throwing errors like Invalid file index 1 in filtergraph description or stream specifier :v:1 in ... matches no stream Edit: The log and command, as requested. ffmpeg -i background.mkv -i comment%3d.png -filter_complex_script filter_complex.txt background-comments.mkv The filter graph is shown in full below in the error message, but the gist is: [0:v][1:v] (...)

14 July

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 22:24
  Getting "Your FFProbe version is too old..." error in Laravel during file upload with FFMpeg - pjotr79 Newest 'ffmpeg' Questions - Stack Overflow
  currently I'm working on a video uploader (to S3) script in Laravel. I'd like to get some info about the uploaded video and later I'd like to create thumbnails as well (with the help of this plugin). As a first step I've installed the FFMpeg with brew: $ brew update $ brew upgrade $ brew cleanup $ brew install ffmpeg --force $ brew link ffmpeg Then in composer $ composer require php-ffmpeg/php-ffmpeg When I'm checking the installation I get the following which ffmpeg /usr/local/bin/ffmpeg which (...) -- this
• 22:13
  Viewing video stream from a network camera - LinuxVirgin Newest 'ffmpeg' Questions - Stack Overflow
  I have placed the below code in a webpage and viewed over my local webserver The stream is configured to output mpeg and not RTSP This works without issues when viewed on a windows computer with chrome & firefox and is OK when viewed on my Android phone with Chrome. But this does not work when viewed on a iphone or ipad with either Chrome or Safari. After searching for a while I am coming to the conclusion to try and encode into a WebRTC to add to a video tag. Is this the right approach as it was fairly easy to get working on a computer and android (...)
• 21:12
  ffmpeg not working with filenames that have whitespace - cmw Newest 'ffmpeg' Questions - Stack Overflow
  I'm using FFMPEG to measure the duration of videos stored in an Amazon S3 Bucket. I've read the FFMPEG docs, and they explicitly state that all whitespace and special characters need to be escaped, in order for FFMPEG to handle them properly: See docs 2.1 and 2.1.1: https://ffmpeg.org/ffmpeg-utils.html However, when dealing with files whose filenames contain whitespace, ffmpeg fails to render a result. I've tried the following, with no success ffmpeg -i "http://s3.mybucketname.com/videos/my\\ video\\ file.mov" 2>&1 | grep Duration | awk 'print (...) -- https://ffmpeg.org/ffmpeg-utils.html
• 21:08
  How to save stream with ffmpeg to chunks, But in temporary name and change the name after to const - Eliya Newest 'ffmpeg' Questions - Stack Overflow
  I use ffmpeg to record IP camera and I save every 10 minutes to mp4 file. This is my code: ffmpeg -rtsp_transport tcp -i "rtsp://$user_name:$passwordⓐ$IP:$port/cam/realmonitor?channel=1&subtype=1" -c copy -map 0 -reset_timestamps 1 -f segment -segment_time 600 -strftime 1 "%Y-%m-%d__%H:%M:%S.mp4" Is there a way to save the file in temporary name until 10 minutes is done? I mean when the recording of 10 minutes didn't end the suffix will be bla.temp and when the recording of the 10 minutes is over, ffmpeg will change the suffix to .mp4? is that (...)
• 20:57
  Windows: subprocess.call ffmpeg triggers a WinError 2 - JarsOfJam-Scheduler Newest 'ffmpeg' Questions - Stack Overflow
  In Pycharm, I have correctly set up an environment with ffmpeg: the project interpreter C:\\Users\\XYZ\\AppData\\Local\\Programs\\Python\\Python37\\python.exe contains, among others, the package ffmpeg. I can see that in the menu Settings then Project then Project Interpreter. I would want to use this environment when I execute the following command, so ffmpeg will be found and execute correctly: subprocess.call( ['ffmpeg', '-i', 'XYZ/XYZ.webm', '-stream_loop', '-1', '-i', 'XYZ/XYZ.wav', '-c:v', (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 18:43
  libavcodec/jpeg2000dec : Prevent overriding SOP marker bit - Gautam Ramakrishnan git.videolan.org Git - ffmpeg.git/rss log
  libavcodec/jpeg2000dec : Prevent overriding SOP marker bit Currently, the COC marker overrides the SOP marker bit. However, only the COD marker may set this value. This patch fixes this bug. Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavcodec/jpeg2000dec.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 20:11
  Using pydub on AWS lambda - Michael Harrison Newest 'ffmpeg' Questions - Stack Overflow
  Ok, so I have the same problem as here: Using pydub and AWS Lambda but thought it would be cleaner to re-ask here as I have made some progress (I think?). I followed the instructions here: https://medium.com/faun/how-to-use-aws-lambda-layers-f4fe6624aff1 like this: I created a lambda_function.py file: from python.pydub import AudioSegment print('Loading function') def lambda_handler(event, context): print(event) sound = AudioSegment.from_mp3("https://s3-eu-west-1.amazonaws.com/audio.mp3") etc...  (...) -- https://medium.com/faun/how-to-use-aws-lambda-layers-f4fe6624aff1
• 20:10
  How to change metadata company_name using ffmpeg - Pushp Vashisht Newest 'ffmpeg' Questions - Stack Overflow
  According to the documentation, to change the metadata,we have to use -metadata option and provide key/value pair of the metadata that we want to add/change: ffmpeg -i in.avi -metadata title="my title" out.flv So, I tried doing: ffmpeg -i in.avi -metadata company_name="My Company" out.flv Now, when I print out the metadata using ffprobe: Metadata: uid : adab4424-2f25-4dc7-92ff-29bd000c0000 generation_uid : adab4424-2f25-4dc7-92ff-29bd000c0001 company_name : FFmpeg How do I change the metadata (...)
• 20:03
  Playing video with transparency in iOS - 0Ds0 Newest 'ffmpeg' Questions - Stack Overflow
  A bit of background, i want to play videos with transparency on the web converted from gifs, for all non apple devices i can easily export a webm file like so ffmpeg -i test.gif -c:v libvpx-vp9 -qmin 0 -qmax 18 -crf 9 -b:v 1400K -quality good -cpu-used 0 -auto-alt-ref 0 -pix_fmt yuva420p -an -sn -metadata title="test webm" test.webm No need for video streaming with HTTP response 206 partial content loaded it works out of the box Now for safari and apple devices i am presented with a totally different beast i set up a endpoint that serves the video with HTTP 206 responses (...)
• 19:46
  FFmpeg: Is it better to make a application then using ffmepg directly - Mirabeau Newest 'ffmpeg' Questions - Stack Overflow
  For all my IP camera streams, I use, under Linux, ffmpeg by a bash script which allows me at the same time to manage: 1/ Convert the RTSP streams to HTTP (HLS) for the "Live" and therefore which generates "m3u8" file and *.ts segments 2/ Backup the stream for archiving (in increments of 5 minutes), a cron remove older files (xx days) ffmpeg -i "rtsp://[IP_CAM01]" -rtsp_transport tcp -c copy -map 0 -f segment -segment_time 300 -segment_atclocktime 1 -segment_format mkv "cam01-% 03d.mkv" -c copy -f segment -segment_list cam01.m3u8 -segment_list_flags + live -segment_time (...)
• 19:24
  Error: ffmpeg exited with code 1 on AWS Lambda - Hassnain Alvi Newest 'ffmpeg' Questions - Stack Overflow
  I am using fluent-ffmpeg nodejs package to run ffmpeg for audio conversion on AWS Lambda. I am using this FFmpeg layer for lambda. Here is my code const bitrate64 = ffmpeg("file.mp3").audioBitrate('64k'); bitrate64.outputOptions([ '-preset slow', '-g 48', "-map", "0:0", '-hls_time 6', '-master_pl_name master.m3u8', '-hls_segment_filename 64k/fileSequence%d.ts' ]) .output('./64k/prog_index.m3u8') .on('progress', function(progress)  (...) -- this
• 19:03
  How to build(compile) ffmpeg.exe for windows 10 - Balakumar S Newest 'ffmpeg' Questions - Stack Overflow
  I need to build FFmppg for the windows environment with limited features.I am not able to find good documentation for building FFmpeg.exe for windows. Suggest me the good documentation for building FFmpeg on windows or tell me step by step procedure to compile

Revisions : SPIP http://core.spip.org/projects/spip/activity

• 19:00
  Anomalie #4524 (En cours): Cartouche manquant - b b Revisions : SPIP
  Pas certain que ça soit utile, le cartouche n'est pas dans ce squelette du privé par exemple https://git.spip.net/spip/spip/src/branch/master/prive/squelettes/contenu/accueil.html
• 18:55
  Anomalie #4522 (En cours): erreur en php 8 dans mysql.log - b b Revisions : SPIP
• 18:53
  Anomalie #4521 (En cours): Warning en php 8 - b b Revisions : SPIP
• 18:45
  Anomalie #4414 (Rejeté): get_magic_quotes_gpc obsolète en php 7.4 - b b Revisions : SPIP
• 18:35
  Anomalie #4524 (En cours): Cartouche manquant - Franck D Revisions : SPIP
  Hello :) Juste pour savoir si vous pensez qu'il serait bien de faire l'ajout du cartouche de spip aux pages suivante: https://git.spip.net/spip/spip/src/branch/master/ecrire/notifications/article_propose.html https://git.spip.net/spip/spip/src/branch/master/ecrire/notifications/article_publie.html https://git.spip.net/spip/spip/src/branch/master/ecrire/notifications/article_valide.html https://git.spip.net/spip/spip/src/branch/master/ecrire/notifications/instituerarticle.php https://git.spip.net/spip/spip/src/branch/master/prive/ajax_item_pick.html (...)
• 14:54
  Anomalie #4522 (En cours): erreur en php 8 dans mysql.log - Franck D Revisions : SPIP
  Hello :) Windows 10 (1909) Firefox 78.0.2 Easyphp Apache 2.4.43 x64 PHP 8.0.0 alpha1 x64 MySQL 8.0.20 x64 PhpMyAdmin 5.0.2 Prefix des tables "spip5" Je fais tout afficher via mes_options, j'installe spip 3.3 ensuite, je regarde les logs de la table mysql.log et cela m'affiche 5 erreurs ( à voir si ce n'est pas "normal" quand même, car cela semble fonctionner quand même) 2020-07-14 14:48:35 127.0.0.1 (pid 1576) C:\\Program Files (x86)\\EasyPHP-Devserver-17\\eds-www\\test5\\ecrire\\base\\connect_sql.php:L170:spip_sql_erreur()::Pub:ERREUR: Erreur 1525 de mysql: Incorrect TIMESTAMP value: (...)
• 14:31
  Anomalie #4521 (En cours): Warning en php 8 - Franck D Revisions : SPIP
  Hello :) Windows 10 (1909) Firefox 78.0.2 Easyphp Apache 2.4.43 x64 PHP 8.0.0 alpha1 x64 MySQL 8.0.20 x64 PhpMyAdmin 5.0.2 Si je vais à la page ecrire/?exec=admin_plugin (après avec activer gd2 et les miniatures dans ecrire/?exec=configurer_avancees) Warning: Trying to access array offset on value of type bool in C:\\Program Files (x86)\\EasyPHP-Devserver-17\\eds-www\\test4\\ecrire\\inc\\filtres_images_lib_mini.php on line 1607 Warning: Trying to access array offset on value of type bool in C:\\Program Files (x86)\\EasyPHP-Devserver-17\\eds-www\\test4\\ecrire\\inc\\filtres_images_lib_mini.php on line (...)

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 17:48
  Merge multiple VP9 WEBM files with FFMPEG - Mathix420 Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying desperately to merge multiple VP9 WEBM files which has been transcoded separately. I used this command to merge them all # Generate the playlist find efs/output -name '*-1080.webm' | sort | xargs -I echo "file ''" > plist.txt # Concat files ffmpeg -v error -f concat -reset_timestamps 1 -safe 0 -i plist.txt -c copy 1080.webm But when I ffprobe the output file it shows me only the duration of the first file. Same when playing it with VLC or ffplay. I have seen and try the different StackOverflow threads about (...)
• 17:43
  VP9 encoding limited to 4 threads? - kellerkindt Newest 'ffmpeg' Questions - Stack Overflow
  I am considering to use VP9 to encode my BluRays in the future, since its an open source codec. But I cannot get Handbrake or ffmpeg use more than 50% (4) of my (8) cores. The encoding time is therefore much worse than x264/5 which uses all cores. In Handbrake I just set encoder to VP9 and CQ19. There is no difference if I add threads 8, threads 16 or threads 64 in the parameters field. Testing ffmpeg in the command line (-c:v libvpx-vp9 -crf 19 -threads 16 -tile-columns 6 -frame-parallel 1 -speed 0) also does not use any more cpu threads. Is the current encoder not capable (...)
• 17:21
  FFmpeg - H264 encoder could not find a valid device and can't configure encoder - parthlr Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to encode using the H264 encoder, but when I do, I get the following error: [h264_v4l2m2m ⓐ 0x55682d2416c0] Could not find a valid device [h264_v4l2m2m ⓐ 0x55682d2416c0] can't configure encoder I made sure that I enabled the encoder when I configured FFmpeg. When I run the command ffmpeg -codecs I see that the H264 codec is listed as an encoder: DEV.LS h264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (decoders: h264 h264_v4l2m2m ) (encoders: libx264 libx264rgb h264_v4l2m2m h264_vaapi ) The source video's video codec is H264 so I (...)
• 17:13
  There is no audio in the video which I recorded with "android camera" in mobile ffmpeg - kadr0id Newest 'ffmpeg' Questions - Stack Overflow
  I use mobile ffmpeg version v4.3-dev-1181. But I can't save the video with sound. This is my code: _flutterFFmpeg.execute('-y -f android_camera -video_size hd720 -framerate 30 -i 0:0 -f flv \\"/storage/emulated/0/file85.flv\\"'); Video save perfect but without sound. Mabye I did something wrong? In support is an example: Record video and audio into a file with this command: -y -f android_camera -i 0:0 -r 30 -pixel_format bgr0 -t 00:00:05 (...)
• 16:39
  Why do I use the header file/library + ffplay.c download from the official website of ffmpeg to make the player worse than the official ffplay? - fredirty2017 Newest 'ffmpeg' Questions - Stack Overflow
  I am use win10 system with a "http_url_mp4" in hand, the MIME of this file is: video/mp4; codecs="mp4a.40.2,avc1.640020"; profiles="isom,mp41,mp42". I downloaded the header files, libraries, dlls, source code from https://ffmpeg.zeranoe.com/builds/ ,then: Run offical "ffplay http_url_mp4", audio and video viewing is normal; I used VS2017 (the project has no special settings) to compile and link the fftools/ffplay.c，fftools/cmdutil.c and the included header files(libavcodec/libavutil and so on), libraries(such as avcodec.lib, avdevicelib, etc.), (...) -- https://ffmpeg.zeranoe.com/builds/
• 16:31
  Run ffmpeg on windows - real-time buffer [USB Camera] [video input] too full or near too full frame dropped - Nikola Lukic Newest 'ffmpeg' Questions - Stack Overflow
  I got successed on macos and linux with : Linux : ffmpeg \\ -f v4l2 \\ -framerate 25 -video_size 640x480 -i /dev/video0 \\ -f mpegts \\ -codec:v mpeg1video -s 640x480 -b:v 1000k -bf 0 \\ http://localhost:8081/supersecret MacOS test: ffmpeg -f avfoundation -framerate 30 -video_size 640x480 \\ -i "0" -f mpegts -codec:v mpeg2video -s 640x480 -b:v 1000k \\ -bf 0 http://localhost:8081/supersecret I already installed ffmpeg on windows a just need correct command. My error log is : /dev/video0: No such file or (...)

Revisions : SPIP http://core.spip.org/projects/spip/activity

• 16:49
  Anomalie #4521: Warning en php 8 - Franck D Revisions : SPIP
  Je viens d'essayer de reproduire en php 7.4.7 et pas moyen, pourtant, j'ai refais les mêmes manips :(
• 16:28
  Anomalie #4521: Warning en php 8 - Franck D Revisions : SPIP
  Yop Windows 10 (1909) Firefox 78.0.2 Easyphp Apache 2.4.43 x64 PHP 8.0.0 alpha1 x64 MySQL 8.0.20 x64 PhpMyAdmin 5.0.2 prefix des tables: spip8 Alors en php 8, je sais comment reproduire, il suffit d'installer spip avec par exemple le prefix "spip8" puis d'aller à: ecrire/?exec=configurer_avancees De choisir GD2 et de cliquer sur "enregistrer" (Ne pas toucher à la case "Ne pas générer de miniatures des images") Puis d'aller à la page ecrire/?exec=admin_plugin Et alors les warning apparaissent ! A savoir: si je fais un F5 sur mon clavier, alors ils (...)
• 16:15
  Anomalie #4522: erreur en php 8 dans mysql.log Revisions : SPIP
  Ok, là on a un petit souci semble t’il (probablement pas du à PHP8 non plus, mais à la version de Mysql ou de sa remontée d’erreur) Dans ces pipelines, on récupère $mydate = $flux['args']['date'];, et on lui applique, sur les requêtes sql_quote($mydate). Sauf que $mydate vaut la chaine '2020-07-13 15:38:14', guillemets compris. Du coup, ça crée quelque chose de faux ensuite dans les requêtes (guillemet + guillement échappé). Je suppose que c’était vu comme une date invalide avant ? ou mysql s’en accomodait très bien ? (parce que je crois pas qu’on ait eu de retours comme quoi ces pipelines (...)
• 15:24
  Anomalie #4521: Warning en php 8 Revisions : SPIP
  Je ne crois pas que ça soit spécifique à PHP8. Il me semble être déjà tombé sur ça, sans savoir trop comment contourner. Il faudrait avoir un moyen de reproduction du problème systématique.

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 15:51
  Run ffmpeg on windows - Nikola Lukic Newest 'ffmpeg' Questions - Stack Overflow
  I got successed on macos and linux with : Linux : ffmpeg \\ -f v4l2 \\ -framerate 25 -video_size 640x480 -i /dev/video0 \\ -f mpegts \\ -codec:v mpeg1video -s 640x480 -b:v 1000k -bf 0 \\ http://localhost:8081/supersecret MacOS test: ffmpeg -f avfoundation -framerate 30 -video_size 640x480 \\ -i "0" -f mpegts -codec:v mpeg2video -s 640x480 -b:v 1000k \\ -bf 0 http://localhost:8081/supersecret I already installed ffmpeg on windows a just need correct command. My error log is : /dev/video0: No such file or (...)
• 15:32
  ffmpeg nodejs lambda crop issue - Ajouve Newest 'ffmpeg' Questions - Stack Overflow
  I have a lambda function to crop videos with ffmpeg I am installing the layer this way #!/bin/bash mkdir -p layer cd layer rm -rf * curl -O https://johnvansickle.com/ffmpeg/builds/ffmpeg-git-amd64-static.tar.xz tar -xf ffmpeg-git-amd64-static.tar.xz mv ffmpeg-git-*-amd64-static ffmpeg rm ffmpeg-git-amd64-static.tar.xz I do not really which version but should be recent as I did it today for the last time Then my node js lambda function is running with the following nodejs module (...) -- https://github.com/fluent-ffmpeg/node-fluent-ffmpeg, https://ajouve-util.s3.amazonaws.com/earth.mp4
• 15:03
  libavfilter: avfilter_graph_parse2 is not preserving pad names - Rahul Newest 'ffmpeg' Questions - Stack Overflow
  I wrote a code to mix two audio streams which is working. However, somehow avfilter_graph_parse2 is not preserving the pad names - is there anyway to preserve pad names. For example, below is a filter spec filter_spec = "abuffer=time_base=1/48000:sample_rate=48000:sample_fmt=fltp:channel_layout=0x3[a0] ; abuffer=time_base=1/48000:sample_rate=48000:sample_fmt=fltp:channel_layout=0x3 [a1]; [a0] [a1] amix=inputs=2, abuffersink"; Below is the code to parse and dump graph if ((ret = avfilter_graph_parse2(filter_graph, filter_spec, &inputs, &outputs)) (...)

Revisions : SPIP http://core.spip.org/projects/spip/activity

• 15:00
  Anomalie #4523 (Nouveau): warning et fatal error en php 8 en partie publique - Franck D Revisions : SPIP
  Hello :) Windows 10 (1909) Firefox 78.0.2 Easyphp Apache 2.4.43 x64 PHP 8.0.0 alpha1 x64 MySQL 8.0.20 x64 PhpMyAdmin 5.0.2 spip 3.3 Prefix des tables: spip5 Une fois installer spip je vais dans la partie publique du site, et j'ai une page blanche qui s'affiche avec dedans: Warning: Illegal string offset 'status' in C:\\Program Files (x86)\\EasyPHP-Devserver-17\\eds-www\\test5\\ecrire\\public\\assembler.php on line 457 Warning: Only the first byte will be assigned to the string offset in C:\\Program Files (x86)\\EasyPHP-Devserver-17\\eds-www\\test5\\ecrire\\public\\assembler.php on line 457 (...)
• 14:24
  Anomalie #4520 (Nouveau): Deprecated en php 8 a l'étape 1 de l'installation - Franck D Revisions : SPIP
  Hello Windows 10 (1909) Firefox 78.0.2 Easyphp Apache 2.4.43 x64 PHP 8.0.0 alpha1 x64 MySQL 8.0.20 x64 PhpMyAdmin 5.0.2 Au moment de l'installation, quand j'arrive à l'étape 1, j'ai 2 deprecated qui apparaissent: Deprecated: Required parameter $serveur follows optional parameter $not in C:\\Program Files (x86)\\EasyPHP-Devserver-17\\eds-www\\test4\\ecrire\\req\\pg.exp.php on line 1236 Deprecated: Required parameter $serveur follows optional parameter $query in C:\\Program Files (x86)\\EasyPHP-Devserver-17\\eds-www\\test4\\ecrire\\req\\pg.exp.php on line 1265 A savoir que l'installation semble quand (...)
• 13:22
  Anomalie #4413 (Fermé): get_magic_quotes_runtime obsolète en php 7.4 - Franck D Revisions : SPIP
  Ok, je ferme alors :) Et pour la mise à jour de la lib getid3, au pire on verra plus tard si c'est vraiment utile :)
• 13:18
  Anomalie #4414 (Fermé): get_magic_quotes_gpc obsolète en php 7.4 - Franck D Revisions : SPIP
  Finalement, cela revient à un double de https://core.spip.net/issues/4516 et https://core.spip.net/issues/4515 Merci à marcimat
• 13:09
  Anomalie #4516 (Fermé): Fatal error en php 8.0 - Franck D Revisions : SPIP
• 13:06
  Anomalie #4413: get_magic_quotes_runtime obsolète en php 7.4 Revisions : SPIP
  - Pour pclzip.php, il y a des tests function_exists() : ça ne posera pas de problème. pour gitID3 : c’est pareil, il y a ce test function_exists(). Donc pas un souci non plus.
• 13:04
  Anomalie #4516 (Résolu): Fatal error en php 8.0 - Franck D Revisions : SPIP
  Merci

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 13:27
  FFmpeg video metadata change - Warren Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to change the video stream metadata. See (Change This Metadata) below. I can change the title of the movie ok but not any others. What is the ffmpeg line to change this. This line below changes "Title Of The Movie" only ffmpeg -i Input.mkv -metadata title="New Title" -c:v copy -c:a copy -c:s copy Output.mkv Input #0, matroska,webm, from 'Input.mkv': Metadata: title : Title Of The Movie encoder : libebml v1.2.3 + libmatroska v1.3.0 creation_time : 2014-08-02 12:58:30 Duration: 02:15:54.21, start: 0.000000, bitrate: (...)
• 12:36
  How is audio data stored in raw pcm format？ - Tian Ye Newest 'ffmpeg' Questions - Stack Overflow
  I am writing an app to manipulate audio where i need to convert a file (wav, MP3, etc) to raw data (samples are presented as float) at the first place. I use ffmpeg in cmd: ffmpeg -i test.wav -f s16le -acodec pcm_s16le output.dat How are samples represented in the output.dat file? I know one sample needs two bytes under S16, and dual channel means it is stored as L1 R1 L2 R2 ... But does this file come with a frame presentation or all the byte in the dat file are sample values? The converted files' size of test.wav via two methods is not identical. (...)

Revisions : SPIP http://core.spip.org/projects/spip/activity

• 13:00
  Anomalie #4516: Fatal error en php 8.0 Revisions : SPIP
  Pour l’écran de sécu : j’ai du coup laissé une compat https://git.spip.net/spip/spip/commit/be3b4611c254 https://git.spip.net/spip-contrib-outils/securite/commit/8618c38e92b42
• 12:40
  Anomalie #4515 (Fermé): Fatal error en php 8.0 Revisions : SPIP
  Clos par https://git.spip.net/spip/spip/commit/6777203d3d

Newest 'libx264' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/libx264

• 11:51
  x264 output video is blank when threading is enabled - NewbieCoder Newest 'libx264' Questions - Stack Overflow
  I am using libx264 compiled from source. It was configured to get both .dll and .lib by this command ./configure --disable-cli --enable-shared --extra-ldflags=-Wl,--output-def=libx264.def` I am using the libx264 API in my screen-sharing program with the preset - "veryfast", tune - "zerolatency", profile - "high" and also the following settings. param.i_csp = X264_CSP_BGRA; param.i_threads = 1; param.i_width = width; param.i_height = height; param.i_fps_num = fps; param.i_fps_den = 1; param.rc.i_bitrate = bitrate; param.rc.i_rc_method = (...)

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 11:00
  How can I draw a image with relative position in Cairo - Cat Tom Newest 'ffmpeg' Questions - Stack Overflow
  I'm using Cairo to draw some elements in ffmpeg avframe. I want to draw a image relative to left and top with a rectangle outside, I found some examplecario doc, but they are all absolute coordinate. So my question is how can I draw image and rectangle in relative coordinate, if I can use some padding or margin API? -- cario doc
• 09:26
  FFMPEG encrypt & decrypt Video offline - user13927336 Newest 'ffmpeg' Questions - Stack Overflow
  I want encrypt & decrypt Video file With FFMPEG oflfine mode in hard disk. I encrypt a Video File (mp4 Extention) by ffmpeg.exe Tools by this Command: ffmpeg -i SampleVideo_1280x720_1mb.mp4 -vcodec copy -acodec copy -encryption_scheme cenc-aes-ctr -encryption_key 76a6c65c5ea762046bd749a2e632ccbb -encryption_kid a7e61c373e219033c21091fa607bf3b8 SampleVideo_1280x720_1mb_encrypted.mp4 for decryption : i want decrypt and play video file (encrypted.mp4) in my player source c++ (ffmpeg base) and *now i dont wnat use decrypt file with command (...)
• 09:13
  FFMPEG Creates blurry video - Nina Newest 'ffmpeg' Questions - Stack Overflow
  With this library https://github.com/tanersener/mobile-ffmpeg, I am using FFMPEG on iOS. I am trying to create a video from audio, with its relevant waveform, background and a logo image added. let command = "-i \\(audioPath) -i \\(imagePath) -filter_complex \\"[0:a]showwaves=s=hd720:mode=line: colors=0x666666|0x555555[v];[1:v]scale=hd720[bg];[bg][v]overlay=shortest=0:main_h-overlay_h-35[outv]\\" -shortest -map '[outv]' -map 'a' -c:a aac -f mp4 \\(videoPath)" With the above command, I am creating a video that has the audio, waveform and a background (...) -- https://github.com/tanersener/mobile-ffmpeg, https://www.dropbox.com/s/6ux4obufb0eiax6/video1x1_art.MP4?dl=0
• 08:55
  How to apply drawtext and watermark at the same time? - DaveG Newest 'ffmpeg' Questions - Stack Overflow
  drawtext cmd: ffmpeg -ss 100 -t 5 -i input.mp4 -vf "drawtext=text=HELLO:fontsize=60" output_1.mpeg watermark cmd: ffmpeg -ss 100 -t 5 -i input.mp4 -i watermark.png -filter_complex "overlay=10:10" output_2.mpeg but what if I want to apply these two cmd at the same time?
• 08:03
  Generate video from numpy arrays with openCV - daVinci Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to use the openCV VideoWriter class to generate a video from numpy arrays. I am using the following code: import numpy as np import cv2 size = 720*16//9, 720 duration = 2 fps = 25 out = cv2.VideoWriter('output.avi', cv2.VideoWriter_fourcc(*'X264'), fps, size) for _ in range(fps * duration): data = np.random.randint(0, 256, size, dtype='uint8') out.write(data) out.release() The codec seems to be installed as ffmpeg can do conversions to the x264 codec and libx264 is installed. The code runs (...)
• 07:55
  libavfilter - reconfigure filter graph using avfilter_graph_parse_ptr returns -22 - Rahul Newest 'ffmpeg' Questions - Stack Overflow
  I am using transcode.c sample from ffmpeg examples and it is working as expected. It uses avfilter_graph_parse_ptr to setup filter graph and it works fine. However, I need change filter graph dynamically and there avfilter_graph_parse_ptr fails. It returns -22. I am not certain if it is a valid operation to do (reconfigure)? If it is possible, does it require more than avfilter_graph_parse_ptr and avfilter_graph_parse_ptr? libavfilter documentation doesn't say anything about reconfigure or reset existing graph. I can create a new graph but I am avoiding it since it is (...)
• 04:38
  FFmpeg outputs video with wrong frame rate when using input pipe - Eduardo Lemus Newest 'ffmpeg' Questions - Stack Overflow
  I am using FFmpeg to convert animated GIF to WEBM video in C#. While this seems to work fine by passing file paths as input/output, my goal is to prevent any access to disk so I'm trying out named pipes instead. The following options to read the output from a named pipe apparently works fine: ffmpeg -f image2pipe -i input.gif -c:v libvpx-vp9 -b:v 0 -crf 30 -an -y -f webm \\\\.\\pipe\\fromFFmpeg but when trying to provide also the input from a named pipe, the output WEBM plays at what seems to be the wrong framerate making a 5-6 secs animation to last ~2 (...)
• 02:36
  ffmpeg - does the position of the "-preset" option matter? - Vahid Pazirandeh Newest 'ffmpeg' Questions - Stack Overflow
  Does it matter where in the order of arguments I place the -preset option? Ex: ffmpeg -i source.mp4 -c:v libx264 -b:v 1.5M -c:a aac -b:a 128k -preset fast target.mp4 vs. ffmpeg -i source.mp4 -preset fast -c:v libx264 -b:v 1.5M -c:a aac -b:a 128k target.mp4
• 01:19
  I'm using the following code to convert YouTube videos into audio but getting error despite installing ffmpeg - Umar Iqbal Newest 'ffmpeg' Questions - Stack Overflow
  This is the code I'm using and the error I'm getting: Code: from future import unicode_literals import youtube_dl ydl_opts = 'format': 'bestaudio/best', 'postprocessors': [ 'key': 'FFmpegExtractAudio', 'preferredcodec': 'mp3', 'preferredquality': '192', ], with youtube_dl.YoutubeDL(ydl_opts) as ydl: ydl.download(['http://www.youtube.com/watch?v=BaW_jenozKc']) Error: DownloadError: ERROR: ffprobe/avprobe and (...)

13 July

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 02:32
  x86/yuv2rgb: fix crashes when storing data on unaligned buffers - James Almer git.videolan.org Git - ffmpeg.git/rss log
  x86/yuv2rgb: fix crashes when storing data on unaligned buffers Regression since fc6a5883d6af8cae0e96af84dda0ad74b360a084 on SSSE3 enabled CPUs. Fixes ticket #8747 Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libswscale/x86/yuv_2_rgb.asm

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 22:03
  Playing a video with JavaCV and FFmpeg - Wamasa Newest 'ffmpeg' Questions - Stack Overflow
  So, I'm developing a custom video player for Android but I need to play more than the android supported video files (mp4, 3gp...), like wmv, avi, flv. At this time I do already convert any video type to .mp4 and I'm able to play them after recoding, but I have no idea how can I play those wmv, avi files without recoding them to mp4 video formats. Is there any way I can play any video on Android without recoding them? JavaCV + FFmpeg library already working, just don't know how to do that. By the way, heres the code that I'm using (...)
• 21:52
  Using FFMPEG with Xvfb, Can't get a smooth video output - Emax Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to stream to twitch from a linux server, I've installed Xvfb and FFMPEG, the live starts fine, but I can't get a smooth video output. Setps: Xvfb :1 -screen 0 1920x1080x24 & export DISPLAY=:1 ffmpeg -probesize 60M -video_size "1920x1080" -framerate 60 -f x11grab -i :1.0 -f flv -ac 2 -crf 23 \\ -vcodec libx264 -g 120 -b:v 3000k -minrate 3000k -maxrate 3000k -pix_fmt yuv420p\\ -s "1920x1080" -preset veryfast -tune zerolatency -acodec libmp3lame -threads 4 -strict normal \\ -bufsize 12000k (...)
• 21:33
  Is it possible to add stroke to text in ffmpeg? - Svetlana Gajic Newest 'ffmpeg' Questions - Stack Overflow
  I would like to add black stroke to text in ffmpeg. Is it possible? -c:v libx264 -vf "hue=h=0, drawtext=fontfile=../bin/RobotoCondensed-Bold.ttf:text='Hello.':fontcolor=white: fontsize=158: x=0+(w-text_w)/2: y=50+(h-text_h-line_h)/2" -c:a copy -shortest -pix_fmt yuv420p ../bin/ENG_01.mov

Revisions : SPIP http://core.spip.org/projects/spip/activity

• 19:39
  Nomenclature #4519: Renommage de terminologie (blacklist / whitelist) - b b Revisions : SPIP
  Pour le retrait du terme master, packagist devrait suivre puisque github semble avoir annoncé le retrait du terme cf https://www.zdnet.com/article/github-to-replace-master-with-alternative-term-to-avoid-slavery-references/

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 18:52
  Memory limit error using ffmpeg on heroku - Scherer Newest 'ffmpeg' Questions - Stack Overflow
  I have a Flask app running on Heroku and what I am trying to do is use FFmpeg to re-encode a video to x265. For that, I have the following route ⓐapp.route('/x265', methods=['POST']) def rotax265(): up_file = request.files['file'].stream in_file = tempfile.TemporaryFile() in_file.write(up_file.read()) in_file.seek(0) out_file = tempfile.TemporaryFile() conv = VideoConverter(in_file, out_file) conv.x265() out_file.seek(0) return out_file.read() It uses a VideoConverter class (...) -- ffmpeg-python

Revisions : SPIP http://core.spip.org/projects/spip/activity

• 17:06
  Nomenclature #4519: Renommage de terminologie (blacklist / whitelist) - RastaPopoulos ♥ Revisions : SPIP
  Aussi, comme dit dans le brouillon IETF, ça vaut pour la branche par défaut "master". C'est plus le comportement par défaut de Git là (et je vois bien Linus troller pour refuser ça), et en plus c'est pris en compte par d'autres outils comme Composer, donc ça me parait moins facile car c'est pas juste du code à nous, qu'on contrôle. On peut le faire bien sûr mais ça implique du plus compliqué que juste changer des variables de notre propre code. https://blog.packagist.com/composer-and-default-git-branches/

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 18:04
  Unhandled stream error in pipe: write EPIPE in Node.js - Michael Romanenko Newest 'ffmpeg' Questions - Stack Overflow
  The idea is to serve screenshots of RTSP video stream with Express.js server. There is a continuously running spawned openRTSP process in flowing mode (it's stdout is consumed by another ffmpeg process): function spawnProcesses (camera) var openRTSP = spawn('openRTSP', ['-c', '-v', '-t', camera.rtsp_url]), encoder = spawn('ffmpeg', ['-i', 'pipe:', '-an', '-vcodec', 'libvpx', '-r', 10, '-f', 'webm', 'pipe:1']);  (...)
• 18:01
  Im failing to build .so file for android from FFMPEG - yejafot Newest 'ffmpeg' Questions - Stack Overflow
  I tried many times with different versions of ffmpeg but failed eventually. I dont know how they wrote .sh file to configure different tools. Here are some .sh files i tried and it all failed. Either it shows only android/share folder instead of android/include android/lib android/share OR i end up in error like no file or folder exist,etc I will share build_arm64-v8a different version of files below VERSION 1 #!/bin/bash export NDK=/media/sf_sharing/android-ndk export HOST_TAG=linux-x86_64 # adjust to your building (...)
• 17:54
  FFMPEG creating video which have blinking opacity overlay - Nikhil Solanki Newest 'ffmpeg' Questions - Stack Overflow
  I am creating video which has an overlay of black color which is continuously changing opacity from 0.0 to 1.0(which means blinking). So, I am setting color as input and set it with blend=all_mode='overlay':all_opacity=0.5 full command: ffmpeg -i combine2.mp4 -loop 1 -i image1.png -i song.mp3 -f lavfi -i "color=black:s=540x960" -t 20 -filter_complex "[0]split=2[color][alpha]; [color]crop=iw/2:ih:0:0[color]; [alpha]crop=iw/2:ih:iw/2:ih[alpha]; [color][alpha]alphamerge[v1]; [1]scale=540:960, setsar=1[v2]; [3]scale=540:960, format=yuv420p, loop=-1:size=2048, (...)
• 16:57
  janus Streaming plugin choppy video - Lucas Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to read the stream from RTSP to do some process(AI) then push the frame to Janus using FFMPEG. Currently, I am using libvpx (Vp8) format for this. but my Video is very choppy on playback. It is breaking a lot. I am adding by FFmpeg pipeline. not sure what is the issue. I am new to this. I found Janus really simple to use. but this is giving me a headache. it is like breaking/freezing so badly. My setup is Janus running in a container with a network as the host . I use WebSocket + HTTP to play stream through UI  (...)
• 16:33
  discord.py - Playing the same audio stream in several voice channels - Cyxo Newest 'ffmpeg' Questions - Stack Overflow
  I made a Discord bot using the discord.py library which aims at playing a web radio in several voice channels. Basically it's the same audio stream for every channel. What I'm doing right now is: voice_channel.play(discord.FFmpegPCMAudio(stream_url)) However every FFmpegPCMAudio uses about 10% of my CPU and there's one for each vc so eventually my bot crashed a lot when playing in 10 channels (which isn't a lot). Since it's the same stream, I tried the following: player = FFmpegPCMAudio(stream_url) for voice_channel in vcs:  (...)
• 18:18
  FFmpeg starting manually but not with Systemd on boot - eKrajnak Newest 'ffmpeg' Questions - Stack Overflow
  On Raspberry Pi 4 B 4GB with official Debian 10 image, I have /home/pi/run.sh script with following: #!/bin/bash ffmpeg -nostdin -framerate 15 -video_size 1280x720 -input_format yuyv422 -i /dev/video0 -f alsa -i hw:Device \\ -af acompressor=threshold=-14dB:ratio=9:attack=10:release=1000 -c:a aac -ac 2 -ar 48000 -ab 160k \\ -c:v libx264 -pix_fmt yuv420p -b:v 3M -bf 1 -g 20 -flags +ilme+ildct -preset ultrafast \\ -streamid 0:0x101 -streamid 1:0x100 -mpegts_pmt_start_pid 4096 -mpegts_start_pid 0x259 -metadata:s:a:0 language="" -mpegts_service_id 131 (...)

Revisions : SPIP http://core.spip.org/projects/spip/activity

• 16:49
  Nomenclature #4519: Renommage de terminologie (blacklist / whitelist) - RastaPopoulos ♥ Revisions : SPIP
  Aussi le brouillon de l'IETF sur le sujet, pas que pour ces mots, plus général : https://tools.ietf.org/id/draft-knodel-terminology-00.html#rfc.section.1.2 À voir si ya un consensus qui se dégage pour le remplacement : excludelist ? blocklist ? Et faut l'inverse souvent : includelist ? allowlist ? permitlist ? Avec ou sans "_" à chaque fois ? Faut décider d'un truc et s'y tenir partout.
• 16:35
  Nomenclature #4519 (Nouveau): Renommage de terminologie (blacklist / whitelist) Revisions : SPIP
  En lisant la compilation [PHP Annotated – June 2020](https://blog.jetbrains.com/phpstorm/2020/06/php-annotated-june-2020/) on tombe sur ce point : [\\[RFC\\] Change terminology to ExcludeList](https://wiki.php.net/rfc/change-terminology-to-excludelist) — The topic of renaming offensive terms has not been overlooked by the PHP world either. There have been [heated discussions](https://externals.io/message/110515) in the Internals. In the PHP core, the change affects only one thing: the configuration directive `opcache.blacklist_filename` should be renamed to `opcache.exclude_list_filename`. (...)

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 15:30
  FFMPEG php HLS and DASH conversion - Angus Simons Newest 'ffmpeg' Questions - Stack Overflow
  I'm using this repo https://github.com/aminyazdanpanah/PHP-FFmpeg-video-streaming to encode video in hls and then reproduce on the front end. After creating all the hls segments correctly the php script fail to execute the command below. The command getting error is the next one: '/usr/bin/ffmpeg' '-y' '-i' 'source.mp4' '-c:v' 'libx264' '-c:a' 'aac' '-bf' '1' '-keyint_min' '25' '-g' '250' '-sc_threshold' '40' (...) -- https://github.com/aminyazdanpanah/PHP-FFmpeg-video-streaming
• 12:32
  Fastest way to extract frames using ffmpeg? - Stpn Newest 'ffmpeg' Questions - Stack Overflow
  Hi I need to extract frames from videos using ffmpeg.. Is there a faster way to do it than this: ffmpeg -i file.mpg -r 1/1 $filename%03d.jpg ?
• 12:28
  ffmpeg 4.3 build failure on Mac OS 10.12.6 - yay nay Newest 'ffmpeg' Questions - Stack Overflow
  I have, by mistake, aborted the install of svtplay-dl via homebrew, while the gcc dependency was installing. I did the "brew cleanup", after which the ffmpeg simply dissappeared from the command line. I have reinstalled the gcc to the latest available version (via homebrew) only to find the same error several times: enter code here"==> Installing dependencies for homebrew-ffmpeg/ffmpeg/ffmpeg: icu4c and x264 ==> Installing homebrew-ffmpeg/ffmpeg/ffmpeg dependency: icu4c ==> ./configure --prefix=/usr/local/Cellar/icu4c/67.1 --disable-samples --disable-tests (...)
• 12:11
  Is it possible to concatenate few videos together, setting their timings and displaying background image, if no video for the current frame? - Valeryi Cherdakov Newest 'ffmpeg' Questions - Stack Overflow
  I have an audio track, say, a few minutes long, as well as several short videos of several tens of seconds. For each of these videos I have a timing - the video should start at a certain second. The audio tracks of these videos are not needed. The output video should last exactly as long as the audio lasts. If at the moment there is no video to display, a picture should be displayed (as if the picture is on layer #1, and the rest of the videos are on layer #2). Is it possible to complete this task using a command or a series of ffmpeg (...)
• 11:57
  Install ffmpeg package inside docker container - Yaran Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to install ffmpeg package inside dockerfile, but after that ffmpeg package was not installed. Here is my dockerfile: FROM ubuntu:18.04 FROM maven:3.6.0-jdk-11-slim AS build COPY src /home/app/src COPY pom.xml /home/app RUN mvn -f /home/app/pom.xml clean package -DskipTests RUN apt-get update -y && apt-get install -y ffmpeg FROM openjdk:11-jdk COPY --from=build /home/app/target/car-1.0.jar /home/car.jar EXPOSE 8080:8080 ENTRYPOINT ["java","-jar","/home/car.jar"] If I enter inside docker container and (...) -- https://hub.docker.com/r/mwader/static-ffmpeg/
• 09:37
  FFMPEG show audio frequency waves with border - Nikhil Solanki Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to generate sine waves or audio frequency like using this command: ffmpeg -i combine2.mp4 -i image1.png -i song.mp3 -t 20 -filter_complex "[0]split=2[color][alpha]; [color]crop=iw/2:ih:0:0[color]; [alpha]crop=iw/2:ih:iw/2:ih[alpha]; [color][alpha]alphamerge[v1]; [1]scale=540:960, setsar=1[v2]; [2]showfreqs=s=540x100:mode=line:ascale=sqrt:colors=white|red[v3]; [v2][v3] overlay=main_w-overlay_w:main_h-overlay_h-10[v4]; [v4][v1] overlay=1" output_video2.mp4 -y This command shows frequency of audio with white colour only and also its not smooth as (...) -- ,
• 09:05
  Blank out video frames for last two minutes of MP4 (while keeping audio intact) - fourells5 Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to make a copy of one of my mp4 movies with audio intact, but blacking out video frames only on the last few minutes. Basically I want to keep the end credit music but without the artifacted video. I found this answer: which works perfectly for an entire mp4 file (including a test fragment I made of the above ending credits sequence), but I need it applied as I stated above to just the end of the entire copied full mp4. In this case I don't want to start blanking the video stream frames until after 2h 7m 30s. I messed around with combinations of the -ss, (...)
• 08:52
  Create a subtitle mpd file with MP4box - 123abc Newest 'ffmpeg' Questions - Stack Overflow
  I'm creating a mpd file for a video player and for now I have everything to cover the video, audio and language settings but I'm struggling with the subtitles. Here's the command I used for audio and video : mp4box -dash 10000 -profile dashavc:264:onDemand -rap video/audio.mp4#audio/video
• 06:50
  FFMPEG creating puzzle pieces video from an image - Nikhil Solanki Newest 'ffmpeg' Questions - Stack Overflow
  I am creating puzzel solving video of a picture. My output must be in w540:h960 and divided puzzel pieces(image pieces) into 4*4=16 pieces puzzel. So, after referring this answer I also followed that: ffmpeg -i background.jpg -i image1.jpg -t 14 -filter_complex "[0]scale=540:960[bg]; [1]split=16[a][b][c][d][e][f][g][h][i][j][k][l][m][n][o][p]; [a]crop=iw/4:ih/4:0*iw/4:0*ih/4[a]; [b]crop=iw/4:ih/4:1*iw/4:0*ih/4[b]; [c]crop=iw/4:ih/4:2*iw/4:0*ih/4[c]; [d]crop=iw/4:ih/4:3*iw/4:0*ih/4[d]; [e]crop=iw/4:ih/4:0*iw/4:1*ih/4[e]; [f]crop=iw/4:ih/4:1*iw/4:1*ih/4[f]; [
• 06:10
  write procedurally generated audio to ffmpeg from python script - Mei Zhang Newest 'ffmpeg' Questions - Stack Overflow
  I have a python script that writes procedurally generated images to ffmpeg to create a video: import subprocess from PIL import Image width, height = 600, 300 cmd = [ "ffmpeg", "-s", f"widthxheight", "-pix_fmt", "rgba", "-f", "rawvideo", "-i", "-", "output.mp4", "-y" ] p = subprocess.Popen(cmd, stdin=subprocess.PIPE) for _ in range(500): img = Image.new("RGBA", (width, height), (200, 0, 0)) p.stdin.write(img.tobytes()) p.stdin.close() How can I extend this script to also write (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 03:37
  mailmap: add entry for myself - Ruiling Song git.videolan.org Git - ffmpeg.git/rss log
  mailmap: add entry for myself Signed-off-by: Ruiling Song <ruiling.song83ⓐgmail.com> [DH] .mailmap

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 03:53
  How to use FFmpeg & "tee" to UDP video (only) stream to another computer while recording to computer with USB camera - pomptondrive Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to get "tee muxer" to work with FFmpeg, but I'm not having much luck. Basically I would like to stream a USB camera with UDP to another computer with an decent/acceptable result to monitor, while recording around 15 FPS in an economical (compressed) fashion that won't take up too much disk space. Honestly, I don't understand the entire syntax of using "tee"--I guess that's obvious. I have looked at some of the FFmpeg documentation, but it doesn't seem comprehensive enough in this instance. So, currently, I have experimented a little and this (...)
• 03:22
  how to use cgroups in php exec - Skora Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to use cgroups in php And I did the following : sudo cgcreate -g cpu:/www-data sudo cgset -r cpu.cfs_period_us=1000000 www-data sudo cgset -r cpu.cfs_quota_us=100000 www-data And when I do use it on ffmpeg via the terminal it works fine But when I used it in php like : exec("cgexec -g cpu:www-data ffmpeg -i music.mp3 -ac 1 -map 0:a -acodec libopus -b:a 64k -vbr off -ar 24000 music.ogg"); does not work Can it be used with (...)
• 00:18
  Add watermark-overlay with -filter_complex to multiple outputs (dash) - Werner Newest 'ffmpeg' Questions - Stack Overflow
  I'm creating a set of files for DASH (without audio) with: ffmpeg -i "input.mov" -y -keyint_min 100 -g 100 -sc_threshold 0 -c:v libx264 -pix_fmt yuv420p -map v:0 -s:0 320x180 -b:v:0 681.125k -maxrate:0 681.125k -bufsize:0 340.5625k -map v:0 -s:1 640x360 -b:v:1 2724.5k -maxrate:1 2724.5k -bufsize:1 1362.25k -map v:0 -s:2 1280x720 -b:v:2 5449k -maxrate:2 5449k -bufsize:2 2724.5k -map v:0 -s:3 1920x1080 -b:v:3 10898k -maxrate:3 10898k -bufsize:3 5449k -init_seg_name "myname_$RepresentationID$.$ext$" -media_seg_name (...)
• 00:09
  FFMPEG: writing the header to MKV container - Pol.H Newest 'ffmpeg' Questions - Stack Overflow
  In my project am capturing the desktop "gdigrab" and encode the stream to x264 and save it to a file. This works great when using containers such as MP4 and MPEG1. But when choosing MKV as container i get below output during the call to avformat_write_header **Stream #0:0, 0, 0/0: Video: h264, 1 reference frame, yuv420p, 1920x1080 (0x0), 0/1, q=2-31, 4 kb/s, 0.02 fps [matroska ⓐ 000002694acc5600] get_metadata_duration returned: 0 Invalid data found when processing input My question is: do i have to add a duration in order to use MKV, as stated in the error message (...)
• 00:04
  How to save an audiostream with ffmpeg - Nico Eymael Newest 'ffmpeg' Questions - Stack Overflow
  I want to save an audiostream from beatport.com with ffmpeg. The audiostream is: https://www.beatport.com/track/maximal-happiness/13855065 Outputfile: audiotrack1.aac I know that the music is streamed in aac format. I want my output file to be also aac. I've looked up in which format it is being streamed. So in cmd I write : ffmpeg -i https://www.beatport.com/track/maximal-happiness/13855065.aac -vn -c:a copy audiotrack1.aac My cmd answers me : https://www.beatport.com/track/maximal-happiness/13855065: Invalid data found when processing (...) -- https://www.beatport.com/track/maximal-happiness/13855065,

12 July

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 00:29
  avdevice/decklink_dec: export timecode with s12m side data - Limin Wang git.videolan.org Git - ffmpeg.git/rss log
  avdevice/decklink_dec: export timecode with s12m side data Reviewed-by: Marton Balint <cusⓐpasswd.hu> Signed-off-by: Limin Wang <lance.lmwangⓐgmail.com> [DH] libavdevice/decklink_dec.cpp

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 18:14
  D/Volley: [19782] BasicNetwork.logSlowRequests: HTTP response for request [closed] - nagaraj buganatti Newest 'ffmpeg' Questions - Stack Overflow
  Hi am facing some issues in php API please help with this am getting this error D/Volley: [19782] BasicNetwork.logSlowRequests: HTTP response for request=http://crowninnovativesolutions.in/MRain/API/index.php?p=uploadVideo 0x70148da5 NORMAL 1> [lifetime=173386], [size=279], [rc=200], [retryCount=0] D/respo: com.android.volley.ParseError: org.json.JSONException: Value http://crowninnovativesolutions.in/MRain/API/index.php?p=uploadVideo 0x70148da5 NORMAL 1 And My codes are function uploadVideo() require_once("config.php");  (...) -- http://crowninnovativesolutions.in/MRain/API/index.php?p=uploadVideo
• 23:51
  Is there a way to identify if an audio is VBR or CBR using FFMpeg? - Nishan Bende Newest 'ffmpeg' Questions - Stack Overflow
  I tried using FFProbe's command, but it's not enough to determine if the audio is CBR or VBR. ffprobe -v error -show_format -show_streams 123_1429602551009.051025.m4a Thanks

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 05:23
  avutil/hwcontext_vdpau: Correctly initialise pixfmts - Philip Langdale git.videolan.org Git - ffmpeg.git/rss log
  avutil/hwcontext_vdpau: Correctly initialise pixfmts The number of declared vdpau formats can vary depending on which version of libvdpau we build against, so the number of pix fmts can vary too. Let's make sure we keep those numbers in sync. [DH] libavutil/hwcontext_vdpau.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 20:25
  How do i set total file duration generating a piped mp4 with ffmpeg? - Mikhail Novikov Newest 'ffmpeg' Questions - Stack Overflow
  My task is to generate (by piping, so that a file can be played at the same time with generation) an mp4 file which is a part of a larger file, with the result looking like a static file link, being seekable before it fully loads (i.e. supporting range headers). Here is how i do it now: ffmpeg -ss $1 -i teststream_hls1_replay.mp4 -t $2 -timecode $3 \\ -codec copy -movflags frag_keyframe+faststart -f mp4 pipe:1 Result is OK (video starts from the right point) except the player does not see the total duration of a file so a controlbar looks weird, and seeking (...)
• 20:12
  Use ffmpeg to extract audio track and subtiles to a m3u8 files which can work with video.js - Maxou Newest 'ffmpeg' Questions - Stack Overflow
  I download video with multiple audio track and subtiles but I don't know the exact number and I want to convert this video to m3u8. Someone know a command which can do what i want ? Thanks
• 20:04
  Merge video with audio in flutter - Rishi Saraf Newest 'ffmpeg' Questions - Stack Overflow
  Hello folks need some suggestion for merging video with audio in flutter. I am able to achieve it using below FFmpeg command however output video quality is bad even though size is almost equal to the original video. Is there any other plugin which lighter and easier to use than FFmpeg. If not how can I make sure FFmpeg don't affect quality of video flutterFFmpeg .execute("-y -i $recordingFilePath -i $selectedSoundPath -map 0:v -map 1:a -shortest (...)
• 19:48
  Image sequence to video stream? - Hauns TM Newest 'ffmpeg' Questions - Stack Overflow
  Like many people already seem to have (there are several threads on this subject here) I am looking for ways to create video from a sequence of images. I want to implement my functionality in C#! Here is what I wan't to do: /*Pseudo code*/ void CreateVideo(List imageSequence, long durationOfEachImageMs, string outputVideoFileName, string outputFormat) // Info: imageSequence.Count will be > 30 000 images // Info: durationOfEachImageMs will be I know there's a project called Splicer (http://splicer.codeplex.com/) but I (...) -- http://splicer.codeplex.com/, these
• 18:53
  FFmpeg with MacOS-recorded WEBM: itsoffset argument for audio synchronization - Igniter Newest 'ffmpeg' Questions - Stack Overflow
  Getting quite a weird error while trying to synchronize audio using a simple command: ffmpeg -i in.webm -itsoffset 1.5 -i in.webm -map 0:v -map 1:a -c copy out.webm I know that the video was recorded by webcam (MediaRecorder API) in Chrome on MacOS Catalina. ffmpeg version 3.4.4-0ubuntu0.18.04.1 Copyright (c) 2000-2018 the FFmpeg developers built with gcc 7 (Ubuntu 7.3.0-16ubuntu3) configuration: --prefix=/usr --extra-version=0ubuntu0.18.04.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/ x86_64-linux-gnu --enable-gpl (...)
• 18:37
  FFmpeg installation on Raspberry Pi Zero W: Undefined references to __atomic - MisterGray Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to install ffmpeg on my Raspberry Pi Zero W, but I get several error messages. OS: Raspberry Pi OS (32-bit) Lite (May 2020) I have executed the following commands: sudo apt update sudo apt full-upgrade sudo apt install git git clone https://github.com/FFmpeg/FFmpeg.git cd FFmpeg ./configure --arch=armel --target-os=linux --enable-gpl --enable-omx --enable-omx-rpi --enable-nonfree make -j2 sudo make install Output of last command: ... LD ffmpeg_g /usr/bin/ld: (...)
• 18:12
  How do I properly save an animation involving circles with matplotlib.animation and ffmpeg? - bghost Newest 'ffmpeg' Questions - Stack Overflow
  I recently tried out matplotlib.animation, and it's a wonderful tool. I can now make and save basic animations (ie that only involve straight lines) without any issues. However, when I made an animation involving circles, even though the interactive display was perfect, the saved mp4 file wasn't really satisfying. In the mp4 file, the edges of the circles were blurred, and if the circles were made semi-transparent (ie with an alpha value What can be done to solve these 2 issues (blurred edges + negated transparency) in the generated mp4 file ? Here is a simple (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 01:55
  checkasm/vf_blend: use the correct depth parameters to initialize the blend modes - James Almer git.videolan.org Git - ffmpeg.git/rss log
  checkasm/vf_blend: use the correct depth parameters to initialize the blend modes This effectively enables the tests that until now were just running the C version alone. Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] tests/checkasm/vf_blend.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 14:22
  How to use separate DLL's when making separate MSI's? - hamidi Newest 'ffmpeg' Questions - Stack Overflow
  First, it's weird why can't I use 32-bit ffmpeg DLL's in 64-bit programs?! I use FFmpegInvoke in a C# program as a wrapper to call fffmpeg functions for getting a camera's packets and decoding them to frames. If the ffmpeg DLL's be 32-bit ones, the frames are not shown and the calls are unsuccessful. For the program, I use Visual Studio 2010 to build separate MSI's for 32-bit and 64-bit platforms by using a VDPROJ project. My question is how can I specify separate ffmpeg DLL's for separate MSI's? I need to build 32-bit MSI with 32-bit ffmpeg (...) -- FFmpegInvoke
• 11:01
  FFMPEG HLS stream for Android and IOS - Poda Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to stream to mobile devices with ffmpeg and apache2.2 but I haven't been successful. I used this command to create the segments and the playlist: ffmpeg -i http://x.x.x.x:8080 -codec:v libx264 -r 25 -pix_fmt yuv420p -profile:v baseline -level 3 -b:v 500k -s 640x480 -codec:a aac -strict experimental -ac 2 -b:a 128k -movflags faststart -flags -global_header -map 0 -f hls -hls_time 10 -hls_list_size 5 -hls_allow_cache 0 -sc_threshold 0 -hls_flags delete_segments -hls_segment_filename out%05d.ts list.m3u8 The source is a http stream which (...)
• 12:06
  Pyinstaller "Failed to execute script pyi_rth_pkgres" and missing packages - gurnben Newest 'ffmpeg' Questions - Stack Overflow
  This is my first time posting a question here as most of my questions have already been answered by someone else! I am working on a GUI application in python and am attempting to use pyinstaller to package it into a single folder and .exe for easier portability. Currently, I am using windows 10 and anaconda3 to manage my python packages. The application relies on tkinter, pillow, numpy, scikit-learn, opencv, ffmpeg, and matplotlib. The application is formatted with a main GUI.py file that creates objects of a number of other files (many of which are stored in a subfolder as this GUI is (...)
• 11:44
  Python get ffmpeg process - Kevin 29890 Newest 'ffmpeg' Questions - Stack Overflow
  I am working on my own video editing software. But when the users clicks render I want to show a progress bar so the user knows how long they have to wait. How do I get the progress of ffmpeg because I use that for rendering their videos. The complete software is written in Python tkinter.
• 09:45
  Flutter_ffmpeg: how to get video and audio from url or storage - Chinmaya Garnaik Newest 'ffmpeg' Questions - Stack Overflow
  Actually i am very confused how i can give video and audio file to Flutter ffmpeg by url or by storage.so it can can give me the output by margarine it.i don't no how ffmpeg work in flutter .i used path provider to give the video and audio file to ffmpeg but i did't get any documentation showing how to provide video or audio file to ffmpeg. so please any can tell me how i can provide file to ffmpeg,it will be big help to me Thank You. i tryed to add some code from Flutter ffmpeg documentation what ever i do i always get some unknown errors. final FlutterFFmpeg (...)
• 08:43
  How to convert bitmaps array to a video in Android? - Kamran Janjua Newest 'ffmpeg' Questions - Stack Overflow
  I have a buffer which is filled with image bitmaps as they arrive (using a thread to continuously take pictures). I would then like to dump that bitmap buffer (I have a hashmap at the moment for matching the keys) into a .mp4 file. Here is the code to continuously capture the images using a handler. button.setOnClickListener prepareUIForCapture() if(isRunning) handler.removeCallbacksAndMessages(null) Logd("Length of wide: " + MainActivity.wideBitmaps.size) Logd("Length of normal: " + MainActivity.normalBitmaps.size) // This is where the (...)
• 09:58
  How to install ffmpeg on Heroku - Riju Newest 'ffmpeg' Questions - Stack Overflow
  I have a Python application on Heroku. How can I install ffmpeg on the app? I tried installing it using the buildpack but I got this error: discord.ext.commands.errors.CommandInvokeError: Command raised an exception: ClientException: ffmpeg was not found.
• 07:54
  Getting List of default argument values if not used in FFMPEG command execution - Pradeep Prabhu Newest 'ffmpeg' Questions - Stack Overflow
  When I use FFMPEG to capture a live IPTV stream on my MAC, I generally end up with an interrupted video. When I send these four arguments, the capture is successful. reconnect 1 -reconnect_at_eof 1 -reconnect_streamed 1 -reconnect_delay_max 2 I don't want to specify these arguments everytime, So I decided to update the default values in the source code. Unsure if I have done it right - I updated http.c which contains these arguments. I re-compiled FFMPEG successfully. I want to know if my changes are applied. Is there a way I can list out all the default values of the (...)
• 05:59
  How to change the "Data rate" of a video using ffmpeg? - John Newest 'ffmpeg' Questions - Stack Overflow
  How to change the Data rate of a video? Those are what I have tryed: ffmpeg.exe -i Video1.mp4 -b:v 284000 Video2.mp4 ffmpeg.exe -i Video1.mp4 -b:a 284000 Video2.mp4 ffmpeg.exe -i Video1.mp4 -bits_per_raw_sample 284000 Video2.mp4
• 02:38
  Set specific frame as thumbnail for video? - noClue Newest 'ffmpeg' Questions - Stack Overflow
  I just want some confirmation, because I have the sneaking suspicion that I wont be able to do what I want to do, given that I already ran into some errors about ffmpeg not being able to overwrite the input file. I still have some hope that what I want to do is some kind of exception, but I doubt it. I already used ffmpeg to extract a specific frame into its own image file, I've set the thumbnail of a video with an existing image file, but I can't seem to figure out how to set a specific frame from the video as the thumbnail. I want to do this without having to extract the (...)
• 01:01
  ffmpeg not working for some reason correctly on linux with discord bot [closed] - billybob joe Newest 'ffmpeg' Questions - Stack Overflow
  Does anyone have any experience getting a discord music bot working with ffmpeg on linux, I switched over from my windows vps to linux ubuntu 18.04 and installed ffmpeg which was a one line command "sudo apt-get install ffmpeg". Everything worked fine when I run the discord music bot on my windows vps and local pc. However when I do so on my linux vps the bot works fine, except the music commands. The bot will join the channel and just stay green and will not output any errors at all. It also does not crash, and will continue to (...)

11 July

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 23:57
  swscale/tests/swscale: Initialize res to a non random error code - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  swscale/tests/swscale: Initialize res to a non random error code Regression since: 3adffab073bc59af39dddd035168ac72bc9ffde3 -1 is consistent what other error paths return Reviewed-by: Martin Storsjö <martinⓐmartin.st> Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libswscale/tests/swscale.c
• 23:35
  swscale/tests/swscale: Fix incorrect return code check - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  swscale/tests/swscale: Fix incorrect return code check Regression since: 3adffab073bc59af39dddd035168ac72bc9ffde3 Reviewed-by: Martin Storsjö <martinⓐmartin.st> Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libswscale/tests/swscale.c
• 15:04
  x86/vf_blend: fix warnings about trailing empty parameters - James Almer git.videolan.org Git - ffmpeg.git/rss log
  x86/vf_blend: fix warnings about trailing empty parameters Finishes fixing ticket #8771 Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavfilter/x86/vf_blend.asm
• 13:09
  lavf/udp: fix the comments for default UDP socket recvbuf size - Jun Zhao git.videolan.org Git - ffmpeg.git/rss log
  lavf/udp: fix the comments for default UDP socket recvbuf size 15d160cc0b2 increased the UDP socket receiving buffer size (64K ->384K), but missed to update this comments. Reviewed-by: Marton Balint <cusⓐpasswd.hu> Signed-off-by: Jun Zhao <barryjzhaoⓐtencent.com> [DH] libavformat/udp.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 23:49
  FFmpeg error: Unable to find a suitable output format for '' - Benjamin Basmaci Newest 'ffmpeg' Questions - Stack Overflow
  I'm new to ffmpeg as well as Android programming. I'm trying to load a video from a URL and crop it with ffmpeg. I want to save that video to a file. This is the command I found online: "-i " + videoUrl + "-filter:v crop=240:120:100:100 -c:a copy test.mp4" I have tried it and got the error Unable to find a suitable output format for '' So I tried to narrow the possible cause down and tried these commands as well: "-i " + videoUrl + " -c:v copy -c:a copy test.mp4" "-i " + videoUrl + " -c:v copy test.mp4" "-i " (...)
• 22:33
  Playback FFmpeg stream through UDP - Andrew Raleigh Newest 'ffmpeg' Questions - Stack Overflow
  I'm using the following command to send ffmpeg data: ./ffmpeg -i "" -pix_fmt yuv420p -tune zerolatency -preset ultrafast -f mpegts udp://127.0.0.1:23000 I then transmit and receive it to another computer through the srt protocol, and read it back on the end-point. I play back with .\\ffplay.exe -i udp://127.0.0.1:23000 -loglevel 40 and don't see a video. I can see data coming in from WireShark though. This is the log output: ffplay version N-98438-gc6cdfdf9c3 Copyright (c) 2003-2020 the FFmpeg developers built with gcc 10.1.0 (Rev3, Built by MSYS2 (...)
• 21:40
  How to add a new filter to ffmpeg library - Croolman Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to add functionality to FFmpeg library. The issue is that in developer guide there are just general instruction on how to do it. I know that when I want to add something to ffmpeg I need to register the new functionality and rebuild the library so I can then call it somehow like so: ffmpeg -i input.avi -vf "myfilter" out.avi I do not want to officialy contribute. I would like to try to create the extra functionality and test it. The question is - is there any scelet file where the basic structure would be ready and you would just get a pointer to a new (...)
• 20:25
  Convert Webrtc track stream to URL (RTSP/UDP/RTP/Http) in Video tag - Zeeshan Younis Newest 'ffmpeg' Questions - Stack Overflow
  I am new in WebRTC and i have done client/server connection, from client i choose WebCam and post stream to server using Track and on Server side i am getting that track and assign track stream to video source. Everything till now fine but problem is now i include AI(Artificial Intelligence) and now i want to convert my track stream to URL maybe UDP/RTSP/RTP etc. So AI will use that URL for object detection. I don't know how we can convert track stream to URL. Although there is a couple of packages like https://ffmpeg.org/ and RTP to Webrtc etc, i am using Nodejs, Socket.io and (...) -- https://ffmpeg.org/, https://github.com/Basscord/webrtc-video-broadcast
• 19:34
  How to add 'now playing' song title info to an rtmp audio stream in ffmpeg - no_event_logged Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to add 'now playing' metadata to a rtmp audio stream using ffmpeg. My current ffmpeg encoder string looks like this and is working fine, just missing the now playing info: "C:\\Program Files (x86)\\ffmpeg\\bin\\ffmpeg.exe" -re -f dshow -i audio="Line 2 (Virtual Audio Cable)" -acodec libfdk_aac -profile:a aac_he_v2 -cutoff 18000 -ab 48k -ac 2 -ar 44100 -f flv "rtmp://blah.com:1935/live/mystream The playout software (StationPlaylist) exports the current song title to C:\\NowPlaying\\nowplaying.txt but I have no idea how to get ffmpeg to inject this / keep it (...)
• 19:10
  Use fluent-ffmpeg to tell if a file is a video or audio - afterglowlee Newest 'ffmpeg' Questions - Stack Overflow
  I am using node-fluent-ffmpeg module in NodeJS. It is very good that fluent-ffmpeg provides functions to get the metadata of a video and audio file. https://github.com/schaermu/node-fluent-ffmpeg#reading-video-metadata I have tried on Mac OS to use the "resolution" attribute in the metadata to tell if a file is audio only or video, i.e. if both resolution.w and resolution.h are 0, then this file is an audio. This work fine on Mac OS. But some strange things happened that this doesn't work on Windows platform (I have tried Windows 7 64bit and Windows 2008) using (...) -- https://github.com/schaermu/node-fluent-ffmpeg#reading-video-metadata
• 18:15
  FFmpeg causing AttributeError: __enter__ on Win10 - Marci Newest 'ffmpeg' Questions - Stack Overflow
  I have a python code which runs perfectly on win7, but i struggle for hours now making it work on my win10 laptop. Before manually installing FFmpeg i receive the error "assert _HAS_FFMPEG, "Cannot find installation of real FFmpeg (which comes with ffprobe)." AssertionError: Cannot find installation of real FFmpeg (which comes with ffprobe)" so i downloaded, unzipped FFmpeg and set up the PATH. From now on i always receive the following error: with FFmpegReader(str(sourcepath)) as src: AttributeError: __enter__ I red that this error has something (...)
• 15:30
  How to add a thumbnail to a .webm video with FFmpeg - Claudio Ciccarone Newest 'ffmpeg' Questions - Stack Overflow
  I have a .webm video and i want to add a thumbnail to this video. With mp4 it's pretty easy to do but with webm FFmpeg gives to me this error: [webm ⓐ 0000024391cf6b80] Only VP8 or VP9 or AV1 video and Vorbis or Opus audio and WebVTT subtitles are supported for WebM. Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument This is the comand line: ffmpeg_x64 -i "../video.webm" -i ../thumb.jpg -loglevel warning -map 1 -map 0 -vcodec copy -acodec copy ../out.webm With mp4 it's alright. I know that the problem is (...)
• 14:00
  GPUMp4Composer is Muting my video, when app is running on my phnone(android 10). But it is working fine in Emulator(android 9) - Monis Khan Newest 'ffmpeg' Questions - Stack Overflow
  I am using GPUMp4Composer for adding two things: -Filter -Watermark Both the things are working correctly in the emulator (android 9). But the resulted video from GPUMp4Composer does not have any sound (muted) when I am using the app on my phone (android 10). This is my code: Bitmap watermark = BitmapFactory.decodeResource(getResources(), R.drawable.watermark); new GPUMp4Composer(srcMp4Path, destMp4Path) .size(540, 960) .videoBitrate((int) (0.25 * 16 * 540 * 960)) .filter(new (...)

Revisions : SPIP http://core.spip.org/projects/spip/activity

• 14:17
  Anomalie #4442: Notice quand ajout d'un dépôt - Franck D Revisions : SPIP
  Hello :) Windows 10 (1909) Firefox 78.0.1 Laragon en php 7.4.8 spip 3.3 dev (24642] A savoir, depuis la création du ticket, il y a eu des changement dans les numéros de lignes: Notice: Undefined index: module in C:\\laragon\\www\\test15\\plugins-dist\\svp\\inc\\svp_phraser.php on line 381 Notice: Undefined index: module in C:\\laragon\\www\\test15\\plugins-dist\\svp\\inc\\svp_phraser.php on line 382 Notice: Undefined index: module in C:\\laragon\\www\\test15\\plugins-dist\\svp\\inc\\svp_phraser.php on line (...)

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 13:42
  Can't obtain information with ffmpeg from Smooth Streaming Manifest file - albertoiNET Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to get details for a stream of protocol Microsoft Smooth Streaming, with ffmpeg tools (ffprobe and ffplay) but when I run the next command: ffprobe -i http://b31282.cdn.telefonica.com/31282/Manifest I obtain this: http://b31282.cdn.telefonica.com/31282/Manifest: Invalid data found when processing input I assume that this Manifest file is correct and complies with standards of Smooth Streaming . This is a brief extract of Manifest file: oioAAAIAAQCUAjwAV... Is a Fedora (...)
• 12:04
  `ffmpeg record audio output device - Roy Newest 'ffmpeg' Questions - Stack Overflow
  i am trying to capture my pulse output device: alsa_output.pci-0000_00_1b.0.analog-stereo.monitor with this command: /usr/bin/ffmpeg -f pulse -i alsa_output.pci-0000_00_1b.0.analog-stereo.monitor -c:a aac -b:a 128k /roee_files/test.wav i get this output with those warnings, and there is an audio delay: ffmpeg version 3.4.7 Copyright (c) 2000-2019 the FFmpeg developers built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-39) configuration: --prefix=/usr --bindir=/usr/bin --datadir=/usr/share/ffmpeg --docdir=/usr/share/doc/ffmpeg (...)
• 11:27
  Combining 2 FFMPEG Commands - John Doe Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to combine 2 ffmpeg commands, one which creates the video, and another which adds a simple fade to the beginning of the created video. Here's what I have: ffmpeg -y -stream_loop -1 -i "video.mp4" -stream_loop -1 -i "music.mp3" -i "audio.mp3" -filter_complex "[1:a]volume=0.1[a1];[2:a]adelay=5000|5000,apad=pad_dur=10[a2];[a1][a2]amerge=inputs=2,afade=in:st=0:d=5[audio]" -map "0:v" -map "[audio]" -c:v libx264 -c:a aac -ac 2 -ar 22050 -preset veryfast -shortest "output.mp4" ffmpeg -y -i "output.mp4" -filter_complex "[0:v]fade=in:0:d=5" -c:a copy -preset (...)
• 10:00
  ffmpeg scale down video dynamically (squeeze-back) or zoompan out to smaller than original - Sam Newest 'ffmpeg' Questions - Stack Overflow
  I have 2 videos, I'm trying to overlay one on top of the other, and have it shrink down in an animated fashion until it appears like a picture-in-picture setup. Then, after a few seconds it should scale back up. This is what I am trying to achieve (these would be videos, not images): This is the closest I've been able to get, but, crucially, zoompanning "out" (as opposed to "in") does not appear to work; so, of course, this does not work: ffmpeg -i bg.mov -i top.mov -filter_complex "[0:v]zoompan=z='pzoom-0.1':d=1, setpts=PTS-STARTPTS[top]; (...) --

Revisions : blueimp/jQuery-File-Upload - GitHub https://github.com/blueimp/jQuery-File-Upload

• 09:54
  10.31.0 - blueimp Revisions : blueimp/jQuery-File-Upload - GitHub
  10.31.0
• 09:53
  Update dev dependencies. - blueimp Revisions : blueimp/jQuery-File-Upload - GitHub
  Update dev dependencies.
• 09:41
  Update blueimp Gallery template. - blueimp Revisions : blueimp/jQuery-File-Upload - GitHub
  Update blueimp Gallery template.

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 07:36
  libavfilter - inputs and outputs confusion in avfilter_graph_parse_ptr - Rahul Newest 'ffmpeg' Questions - Stack Overflow
  I am learning libavfilter library. I have used transcoding.c and filtering_video.c examples from the ffmpeg source code. They are working fine and I understood everything except one part. I have some confusion between inputs and outputs parameters of the avfilter_graph_parse_ptr If you look at here, I was expecting buffersink to go in the outputs parameter and buffersrc to the inputs. But it does it in reverse - as if inputs are outputs of the filter graph. https://github.com/FFmpeg/FFmpeg/blob/master/doc/examples/transcoding.c#L340 Same done here in another (...) -- https://github.com/FFmpeg/FFmpeg/blob/master/doc/examples/transcoding.c#L340, https://github.com/FFmpeg/FFmpeg/blob/master/doc/examples/filtering_video.c#L149
• 02:17
  ffmpeg - converting webm videos generated by Chrome is slow - Nuthinking Newest 'ffmpeg' Questions - Stack Overflow
  I generate webm files in two different ways. One using Chrome WebRTC MediaRecorder, the other one is using a js library which generates the webm video frame by frame (webm-writer-js). The file size of the videos generated is not that different, the fast one is 60% of the slow one but the difference in speed is 1000% Using the basic ffmpeg syntax -i input.webm output.mp4 the files created with Chrome's media recorder take in fact almost 10x time to be converted. The conversion logs differ slightly but overall look very similar to my novice eyes. On the left the fast (...) -- webm-writer-js,
• 00:25
  Convert video.ts file into video.mp4 using ffmpeg - HorizonBloom Newest 'ffmpeg' Questions - Stack Overflow
  So I tried to convert a file named video.ts into video.mp4 in Python and am getting the error: FileNotFoundError: [WinError 2] The system cannot find the file specified Assuming video.ts is already loaded into the program and subprocess already imported. This is due to the line: >>> subprocess.run(['ffmpeg', '-i', 'video.ts', 'video.mp4']) but I don't know what's the problem. I've opened the video.ts file and it seem to be working fine. Python version (...)

10 July

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 17:53
  libavfilter/glslang: Remove unused header - Ben Clayton git.videolan.org Git - ffmpeg.git/rss log
  libavfilter/glslang: Remove unused header The <glslang/Include/revision.h> include was not used, and revision.h has been removed from glslang master. See: https://github.com/KhronosGroup/glslang/pull/2277 [DH] libavfilter/glslang.cpp
• 23:04
  avfilter/vf_chromanr: move thres calculation to filter_frame() - Paul B Mahol git.videolan.org Git - ffmpeg.git/rss log
  avfilter/vf_chromanr: move thres calculation to filter_frame() [DH] libavfilter/vf_chromanr.c
• 19:37
  avcodec/cbs_jpeg: Fix uninitialized end index in cbs_jpeg_split_fragment() - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/cbs_jpeg: Fix uninitialized end index in cbs_jpeg_split_fragment() Fixes: Out of array read Fixes: 24043/clusterfuzz-testcase-minimized-ffmpeg_BSF_TRACE_HEADERS_fuzzer-5084566275751936.fuzz Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavcodec/cbs_jpeg.c
• 17:14
  avcodec/tiff: Check input space in dng_decode_jpeg() - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/tiff: Check input space in dng_decode_jpeg() Fixes: out of array read Fixes: 24034/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TIFF_fuzzer-5111884337119232 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavcodec/tiff.c
• 00:31
  avcodec/mjpeg_parser: Adjust size rejection threshold - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/mjpeg_parser: Adjust size rejection threshold Fixes: 86987846-429c8d80-c197-11ea-916b-bb4738e09687.jpg Fixes: Regression since ec3d8a0e6945fe015d16cd98a1e7dbb4be815c15 Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavcodec/mjpeg_parser.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 16:45
  Accessing SRT transport statistics using ffmpeg - martyn Gilbert Newest 'ffmpeg' Questions - Stack Overflow
  I am using ffmpeg built with SRT and am successfully able to send video stream to the destination using SRT. I am wondering if it is possible to get access to the statistics from the SRT connection such as packets sent, packets lost, packets re-transmitted etc. The SRT demo application srt-live-transmit outputs these statistics to the console while running e.g. ======= SRT STATS: sid=226392826 PACKETS SENT: 0 RECEIVED: 514 LOST PKT SENT: 0 RECEIVED: 0 REXMIT SENT: 0 RECEIVED: 0 DROP PKT SENT: 0 RECEIVED: 0 RATE SENDING: 0 RECEIVING: 4.5198 BELATED (...)
• 16:32
  Using ffmpeg to assemble images from S3 into a video - Mass Dot Net Newest 'ffmpeg' Questions - Stack Overflow
  I can easily assemble images from local disk into a video using ffmpeg and passing a %06d filespec. Here's what a typical (pseudocode) command would look like: ffmpeg.exe -hide_banner -y -r 60 -t 12 -i /JpgsToCombine/%06d.JPG However, I'm struggling to do the same with images stored in AWS S3, without using some third party software to mount a virtual drive (e.g. TNTDrive). The S3 folder containing our images is too large to download to the 20GB ephemeral storage provided for AWS containers, and we're trying to avoid EFS because we'd have to provision (...) -- AWS S3, TNTDrive, EFS, FFMPEG concat filter
• 16:17
  no difference between h264 and h264_cuvid - Ruslan Ablyazov Newest 'ffmpeg' Questions - Stack Overflow
  I use libav to decode an RTSP stream. I tried two code options: with auto codec selection and with hardcoded codec. pCodec = avcodec_find_decoder (pFormatCtx->streams[p_InputVideoStreamIndex]->codecpar->codec_id); //pCodec = avcodec_find_decoder_by_name ("h264_cuvid"); LOG (info) name long_name? PCodec->long_name: ""); The avcodec_find_decoder() function returns h264 codec. The problem is that the speed and load on the CPU when using h264 is no different from h264_cuvid. What could be the reason? When I use h264_cuvid, the video card is loaded by 2-3% more.  (...)
• 15:35
  Google Colan installs ffmpeg very slowly - apegdro Newest 'ffmpeg' Questions - Stack Overflow
  I'm using the command '!apt install ffmpeg' and each time I run it in Google Colab it takes anywhere from 10 to 30-40 minutes to finish loading/installing. Anyone got a clue on why is that? And possibly how to fix it? Everything else I run loads in a matter of seconds or a few minutes.
• 14:09
  Edited video produces smaller image that original, even with higher resolution - ceperman Newest 'ffmpeg' Questions - Stack Overflow
  I've a .ts format recording from my Humax, which completely fills the window horizontally when played with VLC. In full-screen it fills the screen horizontally in letterbox style, and the same on the TV when played through my PS/3. All good so far. This is the ffprobe output: Duration: 02:16:37.72, start: 74238.902878, bitrate: 2554 kb/s Stream #0:0[0x931]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p(tv), 704x576 [SAR 16:11 DAR 16:9], max. 15000 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc I used ffmpeg to change the audio track: ffmpeg -i movie.ts (...)

Revisions : SPIP http://core.spip.org/projects/spip/activity

• 14:20
  Anomalie #4517: Minipres "site en travaux" return un code 200 - PIerre LASZCZAK Revisions : SPIP
  Wouah! c'est rapide. merci!
• 13:37
  Anomalie #4517 (Fermé): Minipres "site en travaux" return un code 200 - b b Revisions : SPIP
  Corrigé par https://git.spip.net/spip/spip/commit/37bd9372379b81ffc68eebd5a7906e0ac14098be
• 13:33
  Anomalie #4517 (En cours): Minipres "site en travaux" return un code 200 - b b Revisions : SPIP
  Le patch suivant devrait régler le problème, tu confirmes ? diff --git a/ecrire/inc_version.php b/ecrire/inc_version.php index c77eaebb60..64cfc7c84b 100644 --- a/ecrire/inc_version.php +++ b/ecrire/inc_version.php ⓐⓐ -536,7 +536,7 ⓐⓐ if (!(_FILE_CONNECT // Si on est dans le site public, dire que qq s'en occupe include_spip('inc/minipres'); utiliser_langue_visiteur(); - echo minipres(_T('info_travaux_titre'), " " . _T('info_travaux_texte') . ""); + echo minipres(_T('info_travaux_titre'), " " . _T('info_travaux_texte') . "", array('status' => 503)); exit; // autrement c'est une install ad (...)
• 13:17
  Anomalie #4518 (Nouveau): changement de langue d'un article si déplacement dans une autre rubrique - denis - Revisions : SPIP
  Nous travaillons avec des articles dans plusieurs langues gérés avec des liens de traduction. La langue par défaut du site est [en] et donc par défaut les rubriques sont en [en]. Dans chaque rubrique, nous créons des articles qui ont leur propre langue [en,fr,nl] et des liens de traductions. Mais si l'on déplace un article vers une autre rubrique, il transforme automatiquement sa langue en [en] SPIP 3.2.7
• 12:43
  Anomalie #4517 (Fermé): Minipres "site en travaux" return un code 200 - PIerre LASZCZAK Revisions : SPIP
  Bonjour, Lorsqu'un site spip est prêt pour une nouvelle installation, minipres return un code HTTP 200 Vous semble-t-il pertinent de retourner un code 503? Merci!

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 12:57
  FFMPEG zoompan for continuous zoom in/zoom out from start duration - Nikhil Solanki Newest 'ffmpeg' Questions - Stack Overflow
  I am creating continues zoomin/zoomout effect for input image using this command: ffmpeg -i combine.mp4 -i image1.jpg -filter_complex "[0]split=2[color][alpha]; [color]crop=iw/2:ih:0:0[color]; [alpha]crop=iw/2:ih:iw/2:ih[alpha]; [colo][alpha]alphamerge[v1]; [1]scale=540*2:960*2, setsar=1, zoompan=z='if(lte(zoom,1.0),1.02,max(1.001,zoom-0.0015))':d=25*0.25:x='iw/2-(iw/zoom/2)':y='ih/2-(ih/zoom/2)':s=540x960[v2]; (...)
• 10:59
  How to send RTP stream to Janus from NGINX RTMP module? - Matéo Newest 'ffmpeg' Questions - Stack Overflow
  This is my first post here, even though this platform has already helped me a lot. So, i'm trying to create a stream and display it in a browser. I have already configured NGINX with the rtmp module and my stream works very well with HLS (between 5 and 10 seconds of latency). Now I would like to set up a low-latency stream and that's why I have installed the janus-gateway webRTC server that allows to take in input an RTP stream and provide in output a webRTC stream. Here's the schema I'd like to follow : OBS -> RTMP -> Nginx-rtmp-module -> ffmpeg -> (...)
• 10:53
  Create dash manifest-file for mp4-videos - Werner Newest 'ffmpeg' Questions - Stack Overflow
  I took a video and created 3 versions of it in different sizes (including a watermark, no audio here) with: ffmpeg -i "input.mov" -i "watermark.png" -an -c:v libx264 -x264opts "keyint=24:min-keyint=24:no-scenecut" -b:v 2400k -maxrate 2400k -bufsize 1200k -filter_complex "overlay=24:960,scale=640:480" -y "output_640_480.mp4" ffmpeg -i "input.mov" -i "watermark.png" -an -c:v libx264 -x264opts "keyint=24:min-keyint=24:no-scenecut" -b:v 3200k -maxrate 3200k -bufsize 1600k -filter_complex "overlay=24:960,scale=800:600" -y "output_800_600.mp4" ffmpeg -i "input.mov" -i (...)
• 10:13
  Truncated prog_index.m3u8 in fluent-ffmpeg - Hassnain Alvi Newest 'ffmpeg' Questions - Stack Overflow
  I am creating a master playlist using fluent FFmpeg but the result prog_index.m3u8 contains last few entries it doesn't include full playlist data Here is the code for generating playlist const bitrate64 = ffmpeg("file.mp3").audioBitrate('64k'); bitrate64.outputOptions([ '-preset slow', '-g 48', "-map", "0:0", '-hls_time 6', '-master_pl_name master.m3u8', '-hls_segment_filename 64k/fileSequence%d.ts' ]) .output('./64k/prog_index.m3u8')  (...)
• 08:52
  FFmpeg "piping" doesn't work with mp4 files? - stlaza Newest 'ffmpeg' Questions - Stack Overflow
  I try the answer from this post and works very well for .webm format. I also try this implementation for mp4 file frames extraction and I got no bytes in stdout. Is there any solution to solve this issue?
• 07:48
  ffmpeg filter_complex concat never completes - seawolf Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to concatenate mp4 files into a single file. I am attempting to use the concat filter directly for reasons independent from this question (so -i list.txt is not a valid solution). All video files in question are between 4 and 20 minutes in length. What I am executing: % ffmpeg -i f01.mp4 -i f02.mp4 -filter_complex "[0:v][0:a][1:v][1:a]concat=n=2:v=1:a=1[v][a]" -map "[v]" -map "[a]" output.mp4 This is my understanding of the form of this command from references such as FFmpeg Filters Documentation: concat and Concatenate Videos Together Using FFMPEG!.  (...) -- FFmpeg Filters Documentation: concat, Concatenate Videos Together Using FFMPEG!
• 03:50
  How to convert RGB to YUV with ffmpeg - Amitrakshar Biszz Newest 'ffmpeg' Questions - Stack Overflow
  I Rendered Some Frames From Blender 3D in png 8-bit Format. There was an ALPHA Channel too! I was Looking for a Way to Convert those RGB Images to YUV.... So I Googled and after tens of hours I found a in which Colors stay the same! Wait, this is not the end of the story.... The Problem is I used a FFmpeg Script (which worked FINE, remember there was a Alpha channel at Input Images), That one below... But I Don't Understand Parts of it.... Well I can Guess what those can mean... ffmpeg -i "%04d.png" -vcodec libx265 -preset slow -crf 18 -pix_fmt yuv420p10le -vf (...) -- Colorspace - FFmpeg Trac/Wiki
• 02:44
  Can javascript MSE play segmented mp4 from the middle? - Elias Wagnerberger Newest 'ffmpeg' Questions - Stack Overflow
  in my current project i have a video stream that ffmpeg encodes to a segmented mp4. that encoded data is piped into an application that sends that data to whomever connects to that application through a websocket. when a client connects i make sure to send the ftyp and the moov boxes first and then send the most recent segments recieved from ffmpeg. on the client side i just pass all binary data from the websocket to MSE. The problem i am facing is that this works if the client is connected from the very start and gets all the fragments that ffmpeg pipes out, but it does not (...)

9 July

Revisions : SPIP http://core.spip.org/projects/spip/activity

• 18:22
  Anomalie #4515 (Fermé): Fatal error en php 8.0 - Franck D Revisions : SPIP
  Hello, :) Windows 10 (1909) Firefox 78.0.2 Easyphp Apache 2.4.43 x64 PHP 8.0.0 alpha1 x64 MySQL 8.0.20 x64 PhpMyAdmin 5.0.2 memory_limit 512M post_max_size 130M upload_max_filesize 64M max_execution_time 300 max_input_time -1 Comme php 8.0 sort le 26 novembre, https://wiki.php.net/todo/php80 et que spip 3.4 ne sortira sans doute pas avant 2022... Je commence à faire des tests avec php 8 (plus c'est tôt mieux c'est) histoire de voir si cela posera de gros problèmes avec spip 3.3 ! J'ai donc fait l'installation d'un spip 3.3 (24642) en php 7.4 puis, je change la version de php de esayphp (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 16:48
  x86/h264_deblock: fix warning about trailing empty parameter - James Almer git.videolan.org Git - ffmpeg.git/rss log
  x86/h264_deblock: fix warning about trailing empty parameter Fixes part of ticket #8771 Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavcodec/x86/h264_deblock.asm
• 16:47
  avutil/x86inc: fix warnings when assembling with Nasm 2.15 - Henrik Gramner git.videolan.org Git - ffmpeg.git/rss log
  avutil/x86inc: fix warnings when assembling with Nasm 2.15 Some new warnings regarding use of empty macro parameters has been added, so adjust some x86inc code to silence those. Fixes part of ticket #8771 Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavutil/x86/x86inc.asm
• 12:07
  avformat/mm: Check for existence of audio stream - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avformat/mm: Check for existence of audio stream No audio stream is created unconditionally and if none has been created, no packet with stream_index 1 may be returned. This fixes an assert in ff_read_packet() in libavformat/utils reported in ticket #8782. Reviewed-by: Michael Niedermayer <michaelⓐniedermayer.cc> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐgmail.com> [DH] libavformat/mm.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 23:52
  FFMPEG: Controlling overlay through ZeroMQ in ffmpeg - Michel Newest 'ffmpeg' Questions - Stack Overflow
  For a project we need to manually control an overlay (static image) on top of a video stream. We concluded that we will need ZeroMQ to control this, and we've managed to control an audio filter successfully through ZeroMQ. To achieve this we've considered two options: Use a color filter to control the foreground (image) transparency "Move" the overlay image in front of the video stream, and remove it out of the video canvas We've managed to get both working, but not in combination with ZeroMQ, unfortunately. Example: ffmpeg -loglevel (...)
• 23:35
  FFMPEG: Controlling overlay through zmq in ffmpeg - Michel Newest 'ffmpeg' Questions - Stack Overflow
  For a project we need to manually control an overlay (static image) on top of a video stream. We concluded that we will need zqm to control this, and we've managed to control an audio filter successfully through zqm. To achieve this we've considered two options: Use a color filter to control the foreground (image) transparency "Move" the overlay image in front of the video stream, and remove it out of the video canvas We've managed to get both working, but not in combination with zqm, unfortunately. Example: ffmpeg -loglevel verbose (...)
• 23:21
  Transcode HLS segments individually with FFMPEG - Mathix420 Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to transcode a video in HLS, by first splitting the video in segments without encoding changes and then transcode all segments individually. I'm trying to achieve this so I can transcode a video in multiple EC2 instances in parallel to be more time efficient. I am using this scipt right now # Split input file in multiple segments ffmpeg -hide_banner -y -i $input -c copy -map 0 -an -segment_time 4 -reset_timestamps 1 -f segment output%03d.webm # Transcode each segments in multiple resolutions find . -name 'output*.webm' (...)
• 23:16
  ffmpeg resulting in no audio and unplayble video - Chris James Champeau Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to get ffmpeg to work as expected however I am having all kinds of trouble getting it to work. I need to output a webm and h264 for web play. However, the command I am using, while it used to work a few years ago, does not work at all now. Both my webm and h264 do not have audio, and neither will play in any browser. My command for webm is: ffmpeg -y -i "$KMVAR_File" -c:v libvpx -crf 24 -b:v 1000k -vf scale=720:-2 -c:a libvorbis "$KMVAR_webmPath" and my command for mp4 is: ffmpeg -y -i "$KMVAR_File" -c:v libx264 -pix_fmt yuv420p -profile:v (...)
• 22:28
  How is frame data stored in libav? - Wesley S Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to learn to use libav. I have followed the very first tutorial on dranger.com, but I got a little confused at one point. // Write pixel data for(y=0; ydata[0]+y*pFrame->linesize[0], 1, width*3, pFile); This code clearly works, but I don't quite understand why, particulalry I don't understand how the frame data in pFrame->data stored, whether or not it depends on the format/codec in use, why pFrame->data and pFrame->linesize is always referenced at index 0, and why we are adding y to pFrame->data[0]. In the tutorial it says  (...)
• 20:47
  How to extract frames from the In-memory mp4 file (bytes buffer) in Python? - stlaza Newest 'ffmpeg' Questions - Stack Overflow
  Now, my solution extracts images with saving bytes on disk using OpenCV/FFmpeg: from fastapi import APIRouter, UploadFile, File ⓐrouter.post("/") def extract_stream_frames(stream: UploadFile = File(...)): temp_filename = os.path.join(tempfile.gettempdir(), str(uuid.uuid4()) + ".mp4") # print(stream.content_type) local_temp_file = open(temp_filename, "wb") local_temp_file.write(stream.file.read()) local_temp_file.close() try: images = video.sampling(local_temp_file.name, num_frames=Config.IMAGES_PER_STREAM) images = (...)
• 20:17
  ffmpeg create blank screen with text video - kalafun Newest 'ffmpeg' Questions - Stack Overflow
  I would like to create a video consisting of some text. The video will only be 0.5 seconds long. The background should just be some colour, I am able to create such video from a photo, but cant find anywhere how this could be done without a photo, just using text to create such video. Can you help me ? Thanks in advance

Revisions : SPIP http://core.spip.org/projects/spip/activity

• 18:29
  Anomalie #4516 (Nouveau): Fatal error en php 8.0 - Franck D Revisions : SPIP
  Hello, :) Windows 10 (1909) Firefox 78.0.2 Easyphp Apache 2.4.43 x64 PHP 8.0.0 alpha1 x64 MySQL 8.0.20 x64 PhpMyAdmin 5.0.2 memory_limit 512M post_max_size 130M upload_max_filesize 64M max_execution_time 300 max_input_time -1 Comme php 8.0 sort le 26 novembre, https://wiki.php.net/todo/php80 et que spip 3.4 ne sortira sans doute pas avant 2022... Je commence à faire des tests avec php 8 (plus c'est tôt mieux c'est) histoire de voir si cela posera de gros problèmes avec spip 3.3 ! Si je lance spip_loader version 3.0.9, j'ai une page blanche avec: Fatal error: Uncaught Error: Call to (...)

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 17:42
  Can I use R to trim a video, like I do with ffmpeg? - Tae Jin Hwang Newest 'ffmpeg' Questions - Stack Overflow
  I have several video files that I need to trim/cut (i.e., cut 00:05:00 - 00:10:00 among 2-hour-long video). I can trim/cut each video by using ffmpeg. However, since I have +100 video files that need to be trimmed, I would like to use R loop function to do it. I've found that there are several R packages that people use for video processing, such as imager or magick, but I cannot find a way to trim a video using R. Can you help me? (...)
• 03:32
  ffmpeg 'or' filter - what's the significance of red and blue? - BETLOG Newest 'ffmpeg' Questions - Stack Overflow
  I'm tinkering with various ffmpeg filters to help me visualise the magnitude of difference certain presets use, and I notice a couple of filters display a lot of certain primary colours. Specifically in this case: red and blue in an 'or' filter, and green in an 'and' filter. It seems useful to be able to tell WHICH input is being indicated, or to understand how the filters act in terms of sequence, and I'm hoping these colourations will help with this. Or at least I'd like to better understand whatever they do represent. In the (...) -- ,
• 17:22
  Android Studio - Append two videos but showing black screen - Darkhmar Newest 'ffmpeg' Questions - Stack Overflow
  First of all hello, When I add another mp4 file at the end of an mp4 file, the video looks completely black screen but I can get the video sounds. If I add a copy of a video to the end of it, I saw that there was no problem, but this is not a scenario I want. I am getting the "text relocations" error when merging with the FFmpeg library. (This problem is fixed when I change this library version, but I have other problems. Therefore, mp4parser is an alternative I see.) The piece of code that allows the videos to be merged is as follows. Thank you from now. private (...)
• 17:09
  Executing shell script on Google Cloud Functions - João Abrantes Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to encode .mp4 videos into hls using FFmpeg. I am using subprocess to call FFmpeg: def transcoder(data, context): """Background Cloud Function to be triggered by Cloud Storage. This generic function logs relevant data when a file is changed. Args: data (dict): The Cloud Functions event payload. context (google.cloud.functions.Context): Metadata of triggering event. Returns: None; the output is written to Stackdriver Logging """ try: input_filename = data['name'].split('/')[-1] #videos have no (...)
• 17:02
  Stream newly generated jpgs as mpegts with ffmpeg - Theodor Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to generate a mpegts stream from a jpg image that is continuously being overwritten, with the help of ffmpeg. In my current setup another program is writing the new images to an image called "cam0.jpg", with a framerate that varies between 1 to 20 fps, and I use this command to generate a mpegts stream ffmpeg -f image2 -framerate 20 -pattern_type none -stream_loop -1 -re -i cam0.jpg -f mpegts -c:v libx264 -preset superfast udp://127.0.0.1:23000 The stream works fine for a while when it suddenly stops without any obvious error or warning. I have figured out (...)
• 16:48
  Unable to load FFMpeg in file in laravel project - Hatim Ahmad Newest 'ffmpeg' Questions - Stack Overflow
  i'm trying to convert a varity of audio files into a specific audio type of my chossing on my laravel project. on my search i landed on a package called Laravel FFMpeg, i started with a fresh installation with laravel 6.2, and did the installation as it shows on github, as soon as i started using it i had this error : FFMpeg\\Exception\\ExecutableNotFoundException: Unable to load FFMpeg in file C:\\Users\\Hatim\\Desktop\\Projects\\Audio\\vendor\\php-ffmpeg\\php-ffmpeg\\src\\FFMpeg\\Driver\\FFMpegDriver.php on line 55 #0 (...)
• 16:01
  Make a Form with ffmpeg action - Yozuu Newest 'ffmpeg' Questions - Stack Overflow
  I would like to know if it would be possible to create a form with ffmpeg actions on a Rails application. Because there is not a lot of documentation on this. On my application, users can upload a video, but I would like those who can, through a form with for example radio button, to manipulate their video. For example by adding a Reverb effect on the audio. Or add audio over the video. But I can't find documentation on a form with ffmpeg. But how to link ffmpeg action in a form on rails ? If you have an example it will help me a lot. Thank you (...)
• 15:55
  FFMPEG MP3: showfreqs to binary file - Brian Newest 'ffmpeg' Questions - Stack Overflow
  I need to process frames inside an MP3 stream by freq and volume. Using FFProbe [1] I can dump binary data (hex format) using show_data, but I'm not sure how that data represent freq, and volume of the audio track. Using FFmpeg [2] I could generate a video showing freq and volume, but I need to process this data as a binary file, not as a video. eg. open (file_stream) > foreach (row as data) Freq and Volume videos generated from MP3: http://ffmpeg.org/ffmpeg-filters.html#toc-showfreqs ** showfreqs https://gist.github.com/seyoum/4455e9bed74241bfbd640a8083fd38b3 (...) -- http://ffmpeg.org/ffmpeg-filters.html#toc-showfreqs, https://gist.github.com/seyoum/4455e9bed74241bfbd640a8083fd38b3, http://ffmpeg.org/ffprobe.html, http://ffmpeg.org/ffmpeg.html
• 15:02
  av_hwdevice_iterate_types returns an empty list - Ruslan Ablyazov Newest 'ffmpeg' Questions - Stack Overflow
  I used an example https://github.com/FFmpeg/FFmpeg/blob/master/doc/examples/hw_decode.c The av_hwdevice_iterate_types function returns an empty list. What could be the reason? And avcodec_find_decoder_by_name("h264_cuvid") returns NULL. FFmpeg version: ffmpeg version 4.3 Copyright (c) 2000-2020 the FFmpeg developers built with gcc 8 (Debian 8.3.0-6) configuration: --enable-gpl --enable-ladspa --enable-libpulse --enable-libsoxr --enable-libspeex --enable-avfilter --enable-avresample --enable-postproc --enable-pthreads --enable-libass --enable-libfreetype (...) -- https://github.com/FFmpeg/FFmpeg/blob/master/doc/examples/hw_decode.c
• 13:03
  Using FFMPEG to extract multichannel audio from Quicktime - Jonas Kvist Jensen Newest 'ffmpeg' Questions - Stack Overflow
  So I have a quicktime file with proxy video content and 8 audio tracks. I need to extract the audio into a single multichannel wave file. I think this is probably pretty simple, but I can't find the solution. What I have: ffmpeg -i input.mov -c:a copy output.wav This gives me just a single channel, so there must be some mapping issue going on.
• 12:12
  What is the internal difference between these two modes when getting the psnr value using ffmpg? - peter12 Newest 'ffmpeg' Questions - Stack Overflow
  Option: -psnr as H264 parameter ffmpeg -i input.mp4 -vf -codec:v libx264 -psnr -f mp4 -b:v 100k -pass 1 output.mp4 Option : Comparing input and output with the psnr filter. ffmpeg -i input.mp4 -vf -codec:v libx264 -f mp4 -b:v 100k -pass 1 output.mp4 ffmpeg -i output.mp4 -i input.mp4 -filter_complex psnr -f null –
• 11:57
  How use FFMPEG to merege multiple audios and videos with delay and offset for any streams - Morak Newest 'ffmpeg' Questions - Stack Overflow
  I want to use FFMPEG to merge multiple audios and videos. Materials are: three short audio clips (S1.mp4, S2.mp4, S3.mp4) without video(files only have audio stream), three video clips (V1.mp4, V2.mp4, V3.mp4) without sound(files only have video stream). I have start-time of all materials(i.e: start-time of "S1.mp4" is 0 sec... start-time of "S2.mp4" is 1220.5 sec... start-time of "S3.mp4" is 2500.12 sec... and start-time of "V1.mp4" is 15.22 sec... start-time of "V2.mp4" is 853.99 sec... start-time of "V3.mp4" is 2901.37 (...)
• 10:14
  ffmpeg video splitting less then 10 sec gives black clip - ubuntu 18.04 LTS - vipin Newest 'ffmpeg' Questions - Stack Overflow
  I am using FFmpeg version 4.3-2~18.04.york0 on AWS EC2 server for video splitting, while I split video less then 11 seconds the output.mp4 gives a blank video. I have tried the same thing with my local MAC and Ubuntu 19 but it works fine. ffmpeg -i input.mp4 -ss 00:01:10 -to 00:01:15 -c:v copy -c:a copy output.mp4
• 09:55
  video uploading from app using ffmpeg showing error - Dhananjay Acharya Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to implement video upload from app using ffmpeg. when I m trying to upload video showing this errors. sometime video upload keep on loading. any help. sometimes app freezes and for some videos showing out of memory error when i run in a real device logcat details 2020-07-09 12:48:14.240 5226-7065/com.mik I/OMXClient: MuxOMX ctor 2020-07-09 12:48:14.369 5226-5226/com.mik I/Choreographer: Skipped 32 frames! The application may be doing too much work on its main thread. 2020-07-09 12:48:14.377 5226-5857/com.mik D/AudioManager: getStreamVolume isRestricted (...)
• 09:44
  Recording transport stream to file in ffmpeg - Neil Bernard Newest 'ffmpeg' Questions - Stack Overflow
  I'm streaming a dvb-t mux and I want to dump it to file using ffmpeg on another PC. Here is the command: ffmpeg -i rtp://192.168.1.93:20000 -acodec copy -vcodec copy d34_tw.ts For some reason though its only saving 1 video and 1 audio random pid? not the whole TS? Thoughts? Neil
• 09:19
  Why does ffmpeg burn Chinese subtitles(ass) without word wrap？ - bjjoy Newest 'ffmpeg' Questions - Stack Overflow
  my ffmpeg burn subtitle example ffmpeg burn ass subtitle to mp4. The properties WrapStyle(0:word wrap, 1: the char '\\N' or movie edge force change line, 2: only \\n and \\N change line). English subtitle run OK. Chinese subtitle has no word wrap when WrapStyle=0. -- my ffmpeg burn subtitle example
• 07:41
  FFmpeg adding image watermark to video process is very slow - Tushar Lathiya Newest 'ffmpeg' Questions - Stack Overflow
  I am adding image watermark to video with help of FFmpeg but FFmpeg takes an inordinate amount of time with the below command- String[] cmd = "-i",videoPath, "-i", waterMark.toString(),"-filter_complex","overlay=5:5","-codec:a", "copy", outputPath; so i tried another command which was little bit faster but increase output file size(which i do not want) String[] cmd = "-y","-i", videoPath, "-i", waterMark.toString(), "-filter_complex", "overlay=5:5", "-c:v","libx264","-preset", "ultrafast", outputPath; Some one please explain to me how to (...)
• 05:44
  FFmpeg stream video to rtmp from frames OpenCV python - batata oussama Newest 'ffmpeg' Questions - Stack Overflow
  In the context of indistural project, i developed a real time application to detect person with AI algorithms. In local i get and display videos with OPENCV operating with frames. The objective is to realise a stream video from frames of Opencv to rtmp server FFmpeg seems a good perspective. However, often the stream strats from .mp4 or several .jpg to publish stream video on rtmp server. Thank you.

8 July

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 23:12
  How to create video from audio files using ffmpeg [duplicate] - Prateek Singla Newest 'ffmpeg' Questions - Stack Overflow
  I have around 8000 audio files (~6 GB in total) mostly in either m4a or mp3 format. Is there a way to convert these audio files to video with filename appearing as a static poster image in video. I was able to find drawtext filter in ffmpeg which might be helpful. But don't know how to write it out in one command so that I just pass in name of the audio file (mp3/m4a) and as output I get a video containing name of audio file as a display (with 256 by 144 pixel resolution). So far I have been able to do this all by using ImageMagick convert commmand to first create static (...) -- drawtext filter
• 22:16
  Encoding to h264 failed to send some frames using ffmpeg c api - Vuwox Newest 'ffmpeg' Questions - Stack Overflow
  Using FFMPEG C API, Im trying to push generated image to MP4 format. When I push frame-by-frame, the muxing seems to failed on avcodec_receive_packet(...) which return AVERROR(EAGAIN) on the first frames, but after a while is starting to add my frame, but the first one. What I mean, is that when push frame 1 to 13, I have errors, but after frame 14 to end (36), the frame are added to the video, but the encoded image are not the 14 to 36, instead its the frame 1 to 23 that are added. I don't understand, is this a problem with the framerate (which i want 12 fps), or with (...)
• 21:53
  What is pkt_size in ffprobe -show_frames? - Null_404 Newest 'ffmpeg' Questions - Stack Overflow
  I am running ffprobe -show_frames and _show_packets on a .ts file and trying to find the size of each I B P frame in the stream. Is this field in the -show_frames option getting what I need? And for the size field given by -show_packets, all the packets are very different sizes. I thought the TS packets should all be around 188 bytes, but that doesn't seem to be the case based on the output. Thanks in advance
• 21:26
  dockerfile apt-get install ffmpeg unmet dependencies - Martin Newest 'ffmpeg' Questions - Stack Overflow
  I have a Dockerfile which looks like this: FROM node:carbon VOLUME ["/root"] ADD setup-ffmpeg.sh /root RUN /root/setup-ffmpeg.sh # Create app directory WORKDIR /usr/src/app # Install app dependencies # A wildcard is used to ensure both package.json AND package-lock.json are copied # where available (npmⓐ5+) COPY package*.json ./ RUN npm install # If you are building your code for production # RUN npm install --only=production # Bundle app source COPY . . EXPOSE 8080 CMD [ "npm", "start" ] Which tries to run (...)
• 21:10
  Set PART_NUMBER for TRACK (30) using ffmpeg in matroska - Tobias Brohl Newest 'ffmpeg' Questions - Stack Overflow
  I would like to set PART_NUMBER on TRACK (30) level (indicating the track number according to spec) in a matroska file using ffmpeg, and I don't know how to do so. When using -metadata track=7 ffmpeg appears to set PART_NUMBER on Level 40, or at least it is interpreted as Disc Nr by VLC (didn't check with mkvtoolnix). ffprobe however displays such metadata as PART_NUMBER, but when set on level 30 it is displayed as track, which makes sense to (...)
• 21:04
  Deal with dropped frames in live stream - arunk2 Newest 'ffmpeg' Questions - Stack Overflow
  We encode a stream (RTMP) into HLS with ffmpeg. During the conversion we observe a lot of variation in fps. We could trace it back to the 'frames' dropped at source (during video upload from tools like OBS). This introduces a bad CX during playback of generated HLS - like buffering/getting-stuck. Question: What is the typical way to handle dropped frames in live stream graciously - like duplicating previous frames or other means? Pointers to related (...)
• 21:02
  ffmpeg live encoding with variable fps matching source - arunk2 Newest 'ffmpeg' Questions - Stack Overflow
  We are trying to encode a rtmp stream to HLS. During conversion we observe variation in the fps during processing (fps -> no.of frames processed per second). Observation: While tracing back the problem we observed, when there are more frame drops at source (during video upload from tools like OBS), we see a low fps for processing. We are using a fixed frame rate with '-r 30' parameter for encoding. we observed ffmpeg is waiting for 30 frames from input stream to to process, which causes delay in chunks generation (ts files in our case, as we use HLS). This slow (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 08:09
  tests/dnn/mathunary: fix the issue of NAN - Ting Fu git.videolan.org Git - ffmpeg.git/rss log
  tests/dnn/mathunary: fix the issue of NAN When one of output[i] & expected_output is NAN, the unit test will always pass. Signed-off-by: Ting Fu <ting.fuⓐintel.com> Reviewed-by: Guo, Yejun <yejun.guoⓐintel.com> [DH] tests/dnn/dnn-layer-mathunary-test.c

Revisions : SPIP http://core.spip.org/projects/spip/activity

• 17:54
  Anomalie #4242: Aucun moyen de définir les constantes utilisées dans l'écran de sécurité : mes_op... - Bruno Rouillard Revisions : SPIP
  Bonjour, J'en rajoute une couche : je viens d'avoir des problèmes de référencement de certains sites SPIP chez certains hébergeurs (plus que 2 pages indexées sur 300). En creusant, j'ai vu que l'accès des robots sur le site se soldait par une entête 429, causée par l'écran de sécurité. Ce que renvoie sys_getloadavg() est souvent fantaisiste, ce qui empêche l'indexation correcte des sites dans les moteurs de recherche. Il n'y a pas d'autre solution que de patcher l'écran de sécurité... A mon sens, la fonctionnalité devrait être désactivée par défaut pour éviter que les personnes se retrouvent devant un (...)

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 15:07
  How to use ffmpeg to change the h264 properties, yuv, fps, tbr, tbn, and tbc of an mp4 file? - bguiz Newest 'ffmpeg' Questions - Stack Overflow
  Using ffmpeg, I would like to convert a video file such that its video stream changes like so: Current video stream: Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 2560x1080 [SAR 4:3 DAR 256:81], 60 kb/s, 15 fps, 15 tbr, 15360 tbn, 30 tbc (default) Target video stream: Stream #0:0(und): Video: h264 (High 4:4:4 Predictive) (avc1 / 0x31637661), yuv444p, 2560x1080, 272 kb/s, 20 fps, 20 tbr, 10240 tbn, 40 tbc (default) (values that differ: h264 properties, yuv, fps, tbr, tbn, and tbc) ... and its audio stream changes like so: Current (...)
• 15:00
  How to find out exact container/format of a video file using ffprobe? - parthagar Newest 'ffmpeg' Questions - Stack Overflow
  I would like to find out the exact format/container of a video file using ffprobe but I am unable to reach to the "exact" part of it. When I run this sample command: ffprobe -hide_banner -loglevel fatal -show_error -show_format -print_format json INPUT I receive this output: "format": "filename": "INPUT", "nb_streams": 2, "nb_programs": 0, "format_name": "matroska,webm", "format_long_name": "Matroska / WebM", "start_time": "0.000000", "duration": "2.969000", "size": "2376430", "bit_rate": "6403314", "probe_score": (...)
• 14:37
  ffmpeg or vlc playlist to rtmp stream? - Jake J Newest 'ffmpeg' Questions - Stack Overflow
  So, I've read all the articles here and unfortunately I can't seem to find the answers I'm looking for. I've gotten close, but the certain magic strings allude me. I'm running hls live streaming (nginx) on ubuntu 17.10 server. In short, I can get the server running one video at a time fine with ffmpeg (with subtitles) using the following: ffmpeg -re -i "1.mkv" -vcodec libx264 -vprofile baseline -g 30 -b:v 1000k -s 852x480 -acodec aac -strict -2 -b:a 192k -ac 2 -vf subtitles=1.srt -f flv rtmp://localhost:1935/show/stream Though, I (...)
• 14:13
  ffmpeg zero latency webcam streaming - SimpleSimon Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to use ffmpeg to stream a webcam with as close to zero latency as possible. My test environment is streaming from localhost to localhost, on a macOS machine. I've tried every parameter switch that I can understand - and many suggestions found both here and elsewhere. But, the latency is persistently just about one second. And to be honest, none of the options that I've tried appear to make any difference at all. I've read that it should be possible to get the latency down to a couple of hundred milliseconds - or even as low as a single video (...)
• 13:26
  How do you add pydub (and eventally ffmpeg) and to the python path in Windows? - KReuZ_o13 Newest 'ffmpeg' Questions - Stack Overflow
  I'm relatively new to messing around with audio in Python, so I'm trying to set up for it. I need to add pydub to Python path, and I have no idea how to do it. Please help. Also, ffmpeg keeps crashing when I try to run it, and I don't know what to do.
• 13:16
  Permission Denied error with Get-ChildItem in PowerShell script - owcs Newest 'ffmpeg' Questions - Stack Overflow
  Whenever I try to run my PowerShell script, I get an error. Please note that I don't have much programming knowledge. Here is the code (with some folder names replaced) cd -Path "F:\\****\\folder1" $files = Get-ChildItem foreach ($file in $files) $newName = $file.BaseName + ".mp3" ffmpeg -i $file.FullName -codec:a libmp3lame -b:a 320k $newName Inside of folder1, there is folder2, which has the files I want to get. I'm not running in folder2, because in the future there will be a folder3 inside of folder1 and I want to get files from (...)
• 12:40
  How do I use this FFMPEG command in python script? - Reshma Walhekar Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to extract a single frame at every second from a video , Using this command on command line using ffmpeg ffmpeg -i input_file.mp4 -r 1 %04d.jpg I am able to do this task using ffmpeg on command line. But I want to use same command in python script, how do I do that and what should be the code? I am very new to this field.
• 11:51
  Video not playing after ffmpeg vintage effect is applied - Khawar Raza Newest 'ffmpeg' Questions - Stack Overflow
  I am using ffmpeg 3.3.4 for android. I am executing below simple command: ffmpeg -i input.mp4 -vf curves=vintage -c:a aac ouput.mp4 and ffmpeg -i input.mp4 -vf curves=vintage -c:a copy ouput.mp4 The resultant video is not playing in android default video player and Exoplayer as well. I tried on windows using windows media player, it only plays sound but no video. Although VLC media player is playing it properly on android and windows. Any idea whats missing in the above command? Output video (...) -- https://www.metadata2go.com/result/e9f9b7db-0a91-4148-9073-1a1162f0c7f0
• 09:42
  Centos7 Server, Masrer Playlist can't create CODECS when use ffmpeg with libx265 (h.265) - Duy Đức Nguyễn Phạm Newest 'ffmpeg' Questions - Stack Overflow
  I use ffmpeg to stream from a link, when I use libx264 it run very good but when I use libx265, file master playlist can't create CODECS #ffmpeg ffmpeg version N-98423-g584f396 Copyright (c) 2000-2020 the FFmpeg developers built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-39) configuration: --prefix=/./usr/local/ffmpeg --bindir=/./usr/local/bin/ --pkg-config-flags=--static --extra-cflags=-I/root/ffmpeg_build/include --extra-ldflags=-L/root/ffmpeg_build/lib --extra-libs=-lpthread --extra-libs=-lm --bindir=/root/bin --enable-gpl --enable-libfdk_aac (...)

Revisions : SPIP http://core.spip.org/projects/spip/activity

• 10:02
  Anomalie #3695: Édition d'un auteur et autocompletion des login/mot de passe Revisions : SPIP
  Alors, voilà la solution : https://developer.mozilla.org/fr/docs/Web/HTML/Element/Input/password Paramétrer l’autocomplétion Afin de permettre au gestionnaire de mots de passe de saisir automatiquement le mot de passe, on pourra utiliser l'attribut autocomplete. Pour les mots de passe, celui-ci aura l'une des valeurs suivantes : on Cette valeur permet au navigateur ou à un gestionnaire de mot de passe de remplir automatiquement le champ. Cette valeur n'est pas aussi informatique que "current-password" or "new-password". off Cette valeur n'autorise pas le navigateur ou le gestionnaire de mot (...)

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 07:59
  Declaring Variables in ffmpeg in a batch file - John Smith Newest 'ffmpeg' Questions - Stack Overflow
  So I wanted to declare a variable and then use that variable throughout my ffmpeg commands in a batch file. I've seen another question about using the duration of the video, but I want to be able to change the timecode I want to cut at myself. However, the problem is I don't think I'm declaring the variable properly because it says it 00:52:00 is unrecognised, this is what I've tried so far. $timecodeToCut = 00:52:00 rem The following command can be used to trim an mp4 file at a specified position. In this example it copies the first 42 minutes of the (...)
• 07:25
  Problem when deploy NodeJS with FFMpeg to IIS server by IISNode - Hùng Phạm Newest 'ffmpeg' Questions - Stack Overflow
  I have a nodeJs project stream RTSP to HTML. I use rtsp-ffmpeg with socket io server.js: var cams = arrData.map(function(device, index) var config = JSON.parse(device.CauHinhThietBi); var rtspUri = getRtspUrl(config.IPLAN, config.RstpPort, config.Username, config.Password, streamType.MainStream); console.log(rtspUri); debugger; var stream = new rtsp.FFMpeg(input: rtspUri, rate: 25, resolution: '640x480', quality: 3); stream.on('start', function() console.log('stream ' + (...)
• 06:48
  FFMPEG mux video and audio (from another video) - mapping issue - Mark Newest 'ffmpeg' Questions - Stack Overflow
  I would like to place the audio from a video to another video without an audio (in one command): ffmpeg.exe -i video1_noAudio.mov -i video2_wAudio.mov -vcodec copy -acodec copy video1_audioFromVideo2.mov I guess "-map" is the correct way to do it but I got confused with it. Can you suggest how to resolve it?
• 03:06
  Pipe input in to ffmpeg - AbstractDissonance Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to use ffmpeg to decode audio data. While it works to load from a file, I would like to avoid using files because to do so, means I would have to use a temporary. Instead, I'd like to pipe in the data(which I've previously loaded) using stdin. Is this possible? e.g., Manually load mp3 file Pipe it in to the ffmpeg spawned process Get raw output (it should work with ffprobe and ffplay (...)
• 02:50
  Can't get watermark on my nginx-rtmp live streams with ffmpeg - mallebabbe Newest 'ffmpeg' Questions - Stack Overflow
  Goodday, I'm trying to get my livestreams watermarked but for some reason the streams aren't transcoded with the image I want to have on top. My current build is: Stream from OBS to Nginx-RTMP server In the nginx.conf I've an app configured with the name live which should trigger ffmpeg execution and transfer the output to the push app to deliver the final stream to the different Social Media platform All is working without the ffmpeg execution. My OBS Stream configuration looks like (...)
• 02:34
  Getting (Estimated) Time Offset of the Errors Reported by ffmpeg - Haru Newest 'ffmpeg' Questions - Stack Overflow
  I'm using ffmpeg to check for errors in video files, but while it reports tons of issues it doesn't tell me where exactly the error happens in the file. It just dumps some crazy long hex numbers (0x7fa…) which doesn't tell me anything. Is there a way to make it report some timestamps, or at least estimated timestamps, or byte-offsets into the stream? I tried the -debug_ts flag, but nothing changed in the output. $ ffmpeg -debug_ts -v error -i a_broken_file.mp4 -f null - [h264 ⓐ 0x7fa513023400] Reference 4 >= 4 [h264 ⓐ 0x7fa513023400] error while decoding MB (...)
• 01:58
  FFmpeg: Pipe segments to s3 - Brendan Kennedy Newest 'ffmpeg' Questions - Stack Overflow
  I'd like to pipe ffmpeg segments to s3 without writing them to disk. ffmpeg -i t2.mp4 -map 0 -c copy -f segment -segment_time 20 output_%04d.mkv Is it possible to modify this command so that ffmpeg writes segments to an s3 bucket? Something like this perhaps? ffmpeg -i t2.mp4 -map 0 -c copy -f segment -segment_time 20 pipe:1 \\ | aws s3 cp - s3://bucket/output_%04d.mkv When I run the command above I receive this error Could not write header for output file #0 (incorrect codec parameters ?): Muxer not found This command works except (...)

7 July

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 21:50
  avformat/sdp: Fix potential write beyond end of buffer - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avformat/sdp: Fix potential write beyond end of buffer Reviewed-by: Michael Niedermayer <michaelⓐniedermayer.cc> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐgmail.com> [DH] libavformat/sdp.c
• 23:19
  swscale/tests: check return value of sws_scale - Lynne git.videolan.org Git - ffmpeg.git/rss log
  swscale/tests: check return value of sws_scale [DH] libswscale/tests/swscale.c
• 17:01
  aarch64/yuv2rgb_neon: fix return value - Lynne git.videolan.org Git - ffmpeg.git/rss log
  aarch64/yuv2rgb_neon: fix return value We return 0 for this particular architecture but should instead be returning the number of lines. Fixes users who check the return value matches what they expect. [DH] libswscale/aarch64/swscale_unscaled.c [DH] libswscale/aarch64/yuv2rgb_neon.S

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 23:58
  ffmpeg stops capturing whole hour of HTTP stream after some time - CompuChip Newest 'ffmpeg' Questions - Stack Overflow
  First of all, sorry if I'm using the wrong terminology. I've been playing around with nginx and I'm still a bit confused about RTMP and HLS and other acronyms. I've managed to setup OBS to stream to an nginx server, which takes the RTMP stream and chops it into pieces for HLS. Here's the relevant part of the nginx configuration file. rtmp server listen 1935; chunk_size 4000; ping 30s; deny play all; application live live on; hls on; hls_nested on; # Create a new folder for each stream hls_path (...)
• 19:42
  How create raw of rtp audio? - omides Newest 'ffmpeg' Questions - Stack Overflow
  I have one packet rtp, this packet have payload and payload is (PAYLOAD FILE): I get raw file for this payload with Audacity and result is (RAW FILE): How does convert fe to 00 00 80 39 ? I will do with python ? How arrange raw file for create stereo ? I will create stereo wav file of rtp. My file is float 32. Exp 2: Payload: RAW(Audacity): -- , , ,
• 19:00
  Ffmpeg stream from 2 pipes in Python - thekangaroo Newest 'ffmpeg' Questions - Stack Overflow
  I want to create a UDP stream from 2 input pipes (video from an image pipe, and audio from multiple wav files or another pipe) and generate one combined output. Ideally this would be done using ffmpeg for python, and no command line. All my tests failed. I tried: ffmpeg.input('pipe:pipeout').output('udp://127.0.0.1:1234', r='30', ss='0').global_args('-re').run() but the framerate is too fast and also it gets the output "trailing options were found on the commandline" and generates no stream. How can I generate the (...)
• 17:57
  Class 'Pbmedia\\LaravelFFMpeg\\FFMpeg' not found - Elix Newest 'ffmpeg' Questions - Stack Overflow
  Inside an Artisan command I have this FFMpeg::fromDisk('songs') ->open('this.mp4') ->export() ->toDisk('converted_songs') ->inFormat(new \\FFMpeg\\Format\\Audio\\Aac) ->save('yesterday.aac'); At the top of the file I already added use Pbmedia\\LaravelFFMpeg\\FFMpeg; I am getting this error Class 'Pbmedia\\LaravelFFMpeg\\FFMpeg' not found I am also using Laravel-zero, and I have tried everything possible. Been stuck on this for hours now, any (...)
• 17:29
  how to sync frames while calculating vmaf score using ffmpeg - Tarun Newest 'ffmpeg' Questions - Stack Overflow
  I have one source video and encoder version of that source. Now I need to find vmaf score. However I read that to ensure right vmaf score, it is important that both source and encoded videos are in frame sync. Can you please advise how can i do that using filters on decoded streams in ffmpeg. I I have command like below ffmpeg2 -i 11sec_encoded_720p_200k.mp4 -i 11sec_original_1080p.mxf -filter_complex "[0:v]scale=1920x1080:flags=bicubic[main]; [main][1:v]libvmaf=model_path=vmaf_v0.6.1.pkl:psnr=1:ssim=1:ms_ssim=1:log_fmt=json:log_path=720p_200k.json" -report -f null (...)
• 17:07
  FFMPEG Error Processing Batch Downscale Files - Jembut69 Newest 'ffmpeg' Questions - Stack Overflow
  Hello i am new here and i am new to FFMPEG I tried to make loops of my ffmpeg downscale command for %%a in ("D:\\Data\\Movie\\*.*") do ffmpeg -i "%%a" -vsync 0 –hwaccel cuvid -c:v h264_cuvid –resize 640x480 -c:a copy -c:v h264_nvenc -b:v 5M "D:\\Data\\Movie\\Vids\\%%~na.mp4" and i got this error in FFMPEG [NULL ⓐ 000001f4f0663a00] Unable to find a suitable output format for 'ΓÇôhwaccel' ΓÇôhwaccel: Invalid argument What should i do ? any help is really (...)
• 16:40
  Bat Command of FFMPEG [closed] - Foloja Newest 'ffmpeg' Questions - Stack Overflow
  Good day dear all users, I would like to straight to the problem. I have a folder in D:\\Data\\Movie as input folder and D:\\Data\\PabloRojas as output folder . i want to process all the videos inside it with FFMPEG Command below; ffmpeg -vsync 0 –hwaccel cuvid -c:v h264_cuvid –resize 640x480 -i "input" -c:a copy -c:v h264_nvenc -b:v 5M "output" The question is, what is the bat command that automatically process my files in input folder with my FFMPEG Command and put it in output folder?  (...)
• 15:44
  ffmpy.FFExecutableNotFoundError: Executable 'ffmpeg' not found? - Cass Newest 'ffmpeg' Questions - Stack Overflow
  I have been trying to get rid of this error for a long time by installing (pip, PATH variable) but nothing... Help? My code: import ffmpy ff = ffmpy.FFmpeg(inputs=path+'/Stage1Rap.wav': None, outputs=path+'/FinalRap.mp3': ["-filter:a", "atempo=0.5"]) ff.run()
• 15:44
  ffmpeg mp4 to webm through icecast server livestream - Aporie Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to stream huge MP4 videos (2.5Go) on an icecast server. After playing a lot with ffmpeg options to get the best quality/speed encoding settings, I'm facing a strange issue. If I launch my ffmpeg streaming and load the video in the browser I can see it, but if I try to join it after 30s, I just get a black screen with the bottom video player bar. Is there somewhere we can see errors ? And where ? I don't really get if the error is coming from ffmpeg / icecast / my web browser ... If somebody can give me a clue. Here is my (...)
• 15:42
  how to scale video using ffmpeg with -filter_complex - JuraganFilm Newest 'ffmpeg' Questions - Stack Overflow
  im trying to encode my video with watermark and subtitles , i and i have this codes that work for watermark and subtitles ffmpeg -hide_banner -i $video -i $TITLE.ass -loop 1 -i $WATERMARK -loop 1 -i $LOGO -filter_complex "[$videomap]drawtext=text='$TEXT':fontfile=/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf:y=h-line_h-100:x=w-(t-$MARQUE)*w/15:y='10':enable='lt(mod(t\\,1000)\\,100)':fontcolor=orange:fontsize=$FONT:shadowx=$SHADOWX:shadowy=$SHADOWY,ass=$TITLE.ass[FID1];[FID1][2:v]overlay=10:$WATERMARKPOSITION:repeatlast=0:enable='between(t,300,600)'[F
• 13:16
  Batch Downscale to 480P in FFMPEG with NVenc GPU Nvidia [closed] - jilboobs seksi Newest 'ffmpeg' Questions - Stack Overflow
  How to batch downscale videos using FFMPEG, i would like to downscale to 480P and using my GPU NVidia NVenc Command with x265 coding Command with x264 coding Both using GPU Nvidia PS: THERE IS NO SUCH MANUAL IN FFMPEG THAT LET YOU KNOW HOW TO BUILT .BAT COMMAND TO DOWNSCALE WITH FFMPEG! THANK YOU LORD GOD COMPO!!!
• 13:41
  Remove the same clip in two videos - V1rus_Falcon Newest 'ffmpeg' Questions - Stack Overflow
  i'm trying to remove the intro clip from two video just like netflix does with its "skip the intro" feature. i tried with emgu.cv for extracting the frames, phash for hashing the frames and checking the differences between them. I would prefer use ffmpeg or opencl. The problem is to intersect two video to find out what is the intro and after finded it, find the start and finish point of the intro
• 13:23
  How are ARM GPUs supported by Video display/decoding/encoding Programs? - John Allard Newest 'ffmpeg' Questions - Stack Overflow
  I often see ARM-based chips advertising onboard GPUs, like the RPI3 that came with "Broadcom VideoCore IV ⓐ 250 MHz" and the OdroidC2 that comes with a "Mali-450 GPU". These chips advertise stuff like "Decode 4k/30FPS, Encode 1080p,30FPS" as the capabilities of the GPU for encoding and decoding videos. My question is this - how does a program like Kodi, VLC, or FFMPEG come to make use of these GPUs for actual encoding and decoding? When I do research on how to make use of the Mali-450 GPU, for example, I find some esoteric and poorly documented C-examples of sending compressed frames (...)
• 13:21
  MLT query video_codecs not listing libx264 - Terryn94 Newest 'ffmpeg' Questions - Stack Overflow
  Querying video codecs does not list libx264 as an available codec [terryⓐlocalhost ~]$ melt -query video_codecs | grep 264 - h264_nvenc - h264_v4l2m2m - h264_vaapi - nvenc_h264 - h264 - h264_cuvid But I can use it in a command such as: melt avformat:DarkStar.webm -consumer avformat:output.mp4 acodec=aac vcodec=libx264 and it works successfully. This is causing a problem with kdenlive. When selecting Render and choosing the format MP4 - the dominating format (H264/AAC) the render option is disabled with the error Unsupported (...)
• 11:59
  ffmpeg video slides vertically after 'Invalid buffer size, packet size expected frame_size' error (vsync screen tearing glitch)? - GlabbichRulz Newest 'ffmpeg' Questions - Stack Overflow
  I have a video which i want to cut and crop using opencv and ffmpeg. I want the output to be H265, so i am using a ffmpeg subprocess (writing frame bytes to stdin) as explained here. This is a minimum version of my code that leads to the error: import os, shlex, subprocess, cv2, imutils VIDEO_DIR = '../SoExample' # should contain a file 'in.mpg' TIMESPAN = (3827, 3927) # cut to this timespan (frame numbers) CROP = dict(min_x=560, max_x=731, min_y=232, max_y=418) # crop to this area # calculate output video size size = (...) -- , , UCF Aerial Action Dataset
• 11:34
  How to get information of dropped frames and resolution of the played video from Video player like VLC - Ashutosh Singla Newest 'ffmpeg' Questions - Stack Overflow
  I was playing 360° videos using whirligig player for my subjective test and I was wondering how can I get the information of dropped frames and resolution of video played by the player. The source resolution of the video is 1080p, and the frame rate is 30fps When I watching videos on YouTube, I am able to derive the above information by right clicking and looking at the 'stats for nerds' option - see example below: But didn't get the required information for the videos played on whirligig player such as dropped frames, actual bitrate (...) -- whirligig,
• 11:05
  Use FFMPEG to record a RTSP stream to a local file - ggs Newest 'ffmpeg' Questions - Stack Overflow
  I'm looking for a snippet (C/ObjC) in which an up-to-date version of FFMPEG is used to capture a RTSP or RTP stream and save it as a .mp4 file onto the device (with a start/stop record button) Almost all snippets are are out-dated. I would like to use FFMPEG/Libav v3.2-v3.4 I'm using IJKPlayer to display the streams, which works nicely, but there's no record functionality included. Any suggestions? Thanks! -- IJKPlayer
• 09:44
  Python add audio to video opencv - olokelo Newest 'ffmpeg' Questions - Stack Overflow
  I use python cv2 module to join jpg frames into video, but I can't add audio to it. Is it possible to add audio to video in python without ffmpeg? P.S. Sorry for my poor English
• 09:30
  Remove audio from mp4 using python - Kevin Newest 'ffmpeg' Questions - Stack Overflow
  I am working on a project where I cut a video into a smaller video but I want to get rid of the audio. How can I do that
• 09:12
  FFMPEG - can you have comments in script files? - rossmcm Newest 'ffmpeg' Questions - Stack Overflow
  Because of batch's poor ability to handle multi-line strings, I'm using FFMPEG script files more and more for filter_complex arguments. I'm wondering if there is any way to include comments in these files. They seem to be quite tolerant of white space and line breaks. I've tried: # # comment # and ; ; comment ; and ` ` comment ` and ' ' comment ' with no success. It doesn't look as if comments are officially supported, but I'm wondering of there is some (...)
• 08:16
  How to use pyav or opencv to decode a live stream of raw H.264 data? - Dery Newest 'ffmpeg' Questions - Stack Overflow
  The data was received by socket ,with no more shell , they are pure I P B frames begin with NAL Header(something like 00 00 00 01). I am now using pyav to decode the frames ,but i can only decode the data after the second pps info(in key frame) was received(so the chunk of data I send to my decode thread can begin with pps and sps ), otherwise the decode() or demux() will return error "non-existing PPS 0 referenced decode_slice_header error" . I want to feed data to a sustaining decoder which can remember the previous P frame , so after feeding one B frame, the decoder return a (...)
• 07:40
  Error opening video file with openCV cv2VideoCapture - kollo Newest 'ffmpeg' Questions - Stack Overflow
  I have a video file here /data/out.mp4 and its copy /data/out. I'm on Osx Sierra with Xcode 8. Open video with mp4 extension is ok but get error with no extension or any other format. I tryed opencv 2.4 and latest 3.2 from git. Compiled with ffmpeg release/2.0 and also tryed release/3.0 With opencv version 3.2: Python 2.7.10 (default, Jul 30 2016, 19:40:32) [GCC 4.2.1 Compatible Apple LLVM 8.0.0 (clang-800.0.34)] on darwin Type "help", "copyright", "credits" or "license" for more information. >>> import cv2 >>> (...)
• 05:03
  Impossible to convert between the formats supported by the filter '...' - Error reinitializing filters - Fabien Biller Newest 'ffmpeg' Questions - Stack Overflow
  I am using this ffmpeg command(values removed for simplicity) ffmpeg -hwaccel cuvid -c:v h264_cuvid -y -ss 1 -i "FILE0001.MOV" -ss 0 -i "GOPR0621.MP4" -filter_complex [0:v][1:v] midequalizer [al]; [al] yadif lenscorrection scale [vl]; [1:v] lenscorrection scale [vr]; [vl][vr] hstack=shortest=1 -an -c:v h264_nvenc -preset slow "output.mp4" on a machine with a cuda graphics card. I get ffmpeg version N-90979-g08032331ac Copyright (c) 2000-2018 the FFmpeg developers built (...)
• 04:22
  How to convert a video into m4v format in python without saving to a file - Aseem Newest 'ffmpeg' Questions - Stack Overflow
  I would like to convert videos into m4v format in python without saving video to a file. I tried ffmpeg - ffmpeg -i v1.mp4 v1.m4v . It works great but it needs to store the output to a file. My code runs on google app engine where storing files is not advised. ffmpeg-python also requires the output to be streamed to a file. Is there a way to build a python function f1(input_video) which would return output_video in m4v format.

6 July

Newest 'libx264' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/libx264

• 12:56
  FFmpeg - generate x264 CBR video transport stream with C-API - ZeroDefect Newest 'libx264' Questions - Stack Overflow
  Using various posts sprinkled around the Internet, including this one here on SO, I've been able to understand how to use the FFmpeg cli to generate a CBR video bitrate using the x264 codec (wrapped in an MPEG-2 transport stream). Note: I'm concerned with the video bitrate - nothing else. ffmpeg -i cbr_test_file_input.mp4 -c:v libx264 -pix_fmt yuv420p -b:v 6000000 -preset fast -tune film -g 25 -x264-params vbv-maxrate=6000:vbv-bufsize=6000:force-cfr=1:nal-hrd=cbr -flags +ildct+ilme x264_cbr_test_output.ts However, I'm trying to approach this from an (...) -- , , git repo

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 20:18
  avformat/smjpegdec: Check the existence of referred streams - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  avformat/smjpegdec: Check the existence of referred streams Fixes: Assertion failure Fixes: 23758/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5160954605338624.fuzz Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavformat/smjpegdec.c
• 00:46
  avcodec/h26[45]_metadata_bsf: Use separate contexts for reading/writing - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avcodec/h26[45]_metadata_bsf: Use separate contexts for reading/writing Currently, both bsfs used the same CodedBitstreamContext for reading and writing; as a consequence, the state of the writer's context at the beginning of writing a fragment is exactly the state of the reader after having read the fragment; in particular, the writer might not have encountered one of its active parameter sets yet. This is not nice and may lead to invalid output even when the input is completely spec-compliant: Think of an access unit containing a primary coded picture referencing a PPS with id id (...)
• 00:34
  avcodec/cbs: Remove unused function parameters - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avcodec/cbs: Remove unused function parameters Several cbs-functions had an unused CodedBitstreamContext parameter. This commit removes these. Reviewed-by: Mark Thompson <swⓐjkqxz.net> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐgmail.com> [DH] libavcodec/av1_frame_merge_bsf.c [DH] libavcodec/av1_frame_split_bsf.c [DH] libavcodec/av1_metadata_bsf.c [DH] libavcodec/av1_parser.c [DH] libavcodec/cbs.c [DH] libavcodec/cbs.h [DH] libavcodec/cbs_av1.c [DH] libavcodec/cbs_h264.h [DH] libavcodec/cbs_h2645.c [DH] libavcodec/cbs_jpeg.c [DH] libavcodec/cbs_mpeg2.c [DH] (...)

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 23:06
  Remove the clip between two videos - V1rus_Falcon Newest 'ffmpeg' Questions - Stack Overflow
  i'm trying to remove the intro clip from two video just like netflix does with its "skip the intro" feature. i tried with emgu.cv for extracting the frames, phash for hashing the frames and checking the differences between them. I would prefer use ffmpeg or opencl. The problem is to intersect two video to find out what is the intro and after finded it, find the start and finish point of the intro
• 21:48
  ffmpeg - Read raw Data instead of converting to different Format - Aelrond Newest 'ffmpeg' Questions - Stack Overflow
  Since what ffmpeg does generally is read either an audio / image / video file of a given Codec & then converts it to a different Codec, it must have at some point hold to raw values of the media files, which: for Audio the raw Samples (2*44100 Samples) in case of Stereo Audio as int / float rgba pixel data for images (as int8 array) for video, array of images & linked Audio streams How can I essentially just read those raw values & get them in Memory / on Disk in lets say C++ / Python / Java? best (...)
• 21:48
  Frame Number Overlay With FFmpeg syntax - DougM Newest 'ffmpeg' Questions - Stack Overflow
  This has been covered before, and the consensus solution is (minor variations on) the following command line: ffmpeg -i input.MP4 -vf "drawtext=fontfile=Arial.ttf:text='%frame_num':r=25:x=(w-tw)/2:y=h-(2*lh):fontcolor=white:fontsize=50:" -c:a copy output.mp4 Unfortunately, when I apply this to my MP4 files the text that gets placed is "r=25". I've tried every variation that I can think of, but none of them result in a frame number displayed that correlates to the frames. I know that it is aware of frame numbers because as it runs in the command line it (...)
• 20:25
  Generating a waveform using ffmpeg - krisph Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to generate a waveform image using ffmpeg. I have successfully made a waveform image, however it doesn't look very nice... I have been looking around to try and style the image to make it look nicer, however I have been unable to find any information on this or any tutorials on this. I am using PHP and shell_exec to create the waveform. I am aware that there are php library that can do this but due to file format this is a lengthy process. The code I am using is as follows: $command = 'convertvid\\bin\\ffmpeg (...)
• 19:50
  Remove completely silent audio streams with FFmpeg - user2813499 Newest 'ffmpeg' Questions - Stack Overflow
  I have an mp4 file that contains a single video stream and multiple audio streams. Some of the audio streams are silent. Is there a way for FFmpeg to detect and remove all the silent audio streams?
• 19:41
  M4a (mp4) audio file encoded with pydub+ffmpeg doesn't play on Android - Evelyn Newest 'ffmpeg' Questions - Stack Overflow
  I have a python script to split up some wav files and export to m4a using pydub. I'm able to get these files to play on several devices, but not on an Android device (using Google Pixel 3). When I try encoding with straight ffmpeg in terminal, that works fine on the Android device. What is the difference in these two files, and since pydub is using ffmpeg, what do I need to change to make it do exactly the same as the ffmpeg command? Not working from pydub import AudioSegment >>> audio = AudioSegment.from_wav("input.wav") >>> slice = audio[1000:3000] >>> (...) -- pydub
• 18:40
  ffmpeg - Subtitle with multiple fonts for hard sub - MahdiElvis Newest 'ffmpeg' Questions - Stack Overflow
  I wanna hard sub a video with a subtitle but multiple fonts . I just installed that fonts on server but i don't know how to do it I use this command: ffmpeg -i $input.mkv -vf subtitles=subtitle.ass:force_style='FontName=B Koodak' $out.mkv I searched for it and i guess i could use multiple subtitles and give each one different font .
• 18:19
  FFmpeg similar images filtering into png - Udi Newest 'ffmpeg' Questions - Stack Overflow
  I'm using FFmpeg on Mp4 and Avi videos, trying to output all the frames in configurable frame rate to png files using the following command: ./ffmpeg -i ~/Downloads/test.mp4 -vf mpdecimate=hi=1536:lo=640:frac=0.5,setpts=N/60/TB,fps=60/60 "/tmp/resultOutpu/(#%04d).png" test.mp4 is a 10 seconds video of my face using the phone and I expect it to take 10 frames and drop 9 because it is much similar to the first frame. (The video is 1 pose) The actual results it 10 frames of the actual first frame! Meaning it actually using mpdecimate but it also creates 9 more frames (...)
• 18:15
  FFmpeg pad filter calculating wrong width - Abdullah Saleem Newest 'ffmpeg' Questions - Stack Overflow
  I'm using ffmpeg.exe -i in.jpg -filter_complex "[0:v]pad=iw:ih+10:0:0" out.jpg to add a padding of 10px at the bottom of images and videos. In most cases it works as expected but with some the width is off by 1px resulting in failure with error: [Parsed_pad_0 ⓐ 000002ba70617c40] Input area 0:0:623:640 not within the padded area 0:0:622:650 or zero-sized [Parsed_pad_0 ⓐ 000002ba70617c40] Failed to configure input pad on Parsed_pad_0 Error reinitializing filters! Failed to inject frame into filter network: Invalid argument Error while (...) --
• 18:13
  ffmpeg produces quality poor gif animation from gnuplot pictures - Tobi Newest 'ffmpeg' Questions - Stack Overflow
  I am using FFmpeg a while, but I never found this strange behavior that I cannot resolve right now. I do have a few plots generated via Gnuplot, and I do want to combine them into an animated gif file. The code I am using is the following: cat $(find singleGraphs -maxdepth 1 -name "*.png" | sort -V) | \\ ffmpeg \\ -framerate 2 \\ -i - \\ -pattern_type glob \\ -q:v 1 \\ -y \\ Analysis.gif \\ ; The resulting gif picture is poor in color, as you can see in the animation below. I probably do use any argument wrong, or something is (...) -- , The single Gnuplot Pictures
• 18:08
  ffmpeg from .mp3 to .al appears to slow and deepen the audio - Darpeh Newest 'ffmpeg' Questions - Stack Overflow
  I have an mp3 input file that is 22050Hz and 48kb/s. I need to convert it to a .al file in order to stream it to a camera on my network for output. ffmpeg -i file.mp3 file.al creates a file that does play but the bitrate of the output is 176kb/s and it clearly slower/deeper sounding. I have tried -b:a 48k and -filter:a without success but I could be doing it wrong. Documentation states that this is the format I need: PCM ADPCM G.711A G.711.Mu G.726 G.729 MPEG2 AMR (...)
• 17:54
  Compiling ffmpeg for android on Mac - SlaneR Newest 'ffmpeg' Questions - Stack Overflow
  I tried to compile ffmpeg for android on Mac, but it does not work for me. #!/bin/bash NDK=/Users/user/Library/Android/sdk/ndk-bundle SYSROOT=$NDK/platforms/android-18/arch-arm/ TOOLCHAIN=$NDK/toolchains/arm-linux-androideabi-4.9/prebuilt/darwin-x86_64 function build_one ./configure \\ --prefix=$PREFIX \\ --enable-shared \\ --disable-static \\ --disable-doc \\ --disable-ffmpeg \\ --disable-ffplay \\ --disable-ffprobe \\ --disable-network \\ --disable-filters \\ --disable-avdevice \\ --disable-doc \\  (...)
• 16:37
  TTML subtitle missing in HLS - playmaker420 Newest 'ffmpeg' Questions - Stack Overflow
  I tried to inject a ttml subtitle into a mp4 file using the following command. docker run --rm -v `pwd`:/work sambaiz/mp4box -add my.ttml input.mp4 ffmpeg -i input.mp4 ffmpeg version 3.4 Copyright (c) 2000-2017 the FFmpeg developers built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.4) configuration: --extra-libs=-ldl --prefix=/opt/ffmpeg --mandir=/usr/share/man --enable-avresample --disable-debug --enable-nonfree --enable-gpl --enable-version3 --enable-libopencore-amrnb --enable-libopencore-amrwb --disable-decoder=amrnb --disable-decoder=amrwb (...)
• 16:12
  ffmpeg from .mp3 to .al appears to slow and deepen the audio. I've narrowed it down to bitrate - how to get -b:a to stick? - Darpeh Newest 'ffmpeg' Questions - Stack Overflow
  I have an mp3 input file that is 22050Hz and 48kb/s. I need to convert it to a .al file in order to stream it to a camera on my network for output. ffmpeg -i file.mp3 file.al creates a file that does play but the bitrate of the output is 176kb/s and it clearly slower/deeper sounding. I have tried -b:a 48k and -filter:a without success but I could be doing it wrong.
• 16:12
  ffmpeg extracts only part of 1 audio stream from .ts file - Shakalakah Newest 'ffmpeg' Questions - Stack Overflow
  Here is what ffprobe input.ts shows: libavutil 56. 55.100 / 56. 55.100 libavcodec 58. 93.100 / 58. 93.100 libavformat 58. 47.100 / 58. 47.100 libavdevice 58. 11.100 / 58. 11.100 libavfilter 7. 86.100 / 7. 86.100 libswscale 5. 8.100 / 5. 8.100 libswresample 3. 8.100 / 3. 8.100 libpostproc 55. 8.100 / 55. 8.100 Input #0, mpegts, from 'D:\\Downloads\\TEST\\audio.ts': Duration: 02:22:29.67, start: 0.000000, bitrate: 51 kb/s Program 1 Stream #0:0[0x101]: Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 83 (...)
• 16:04
  Scaling Application for video decoding using ffmpeg - jasoos Newest 'ffmpeg' Questions - Stack Overflow
  I am building an application to read multiple IP camera streams (rtsp) and run different Machine Learning Algorithms over it in real time. For each camera stream, I spawn an ffmpeg process which continuously break the rtsp streams into frames and store them as images (JPEG). The streams use H.264 encoding. I am taking 1 frame every second as output. Message queues corresponding to models are given the message containing location of the file. Models keep on picking up the file and drawing inferences The problem I am facing is the CPU usage by ffmpeg (...)
• 15:55
  react-native-ffmpeg Unrecognized option 'preset' - Tommy Khumarga Newest 'ffmpeg' Questions - Stack Overflow
  Below is my ffmpeg command: y -i vidInput.mp4 -vcodec mpeg4 -b:v 1000k -b:a 48000 -preset ultrafast vidOutput.mp4 And the result is: [Mon Jul 06 2020 20:42:08.171] LOG Unrecognized option 'preset'. [Mon Jul 06 2020 20:42:08.172] LOG Error splitting the argument list: [Mon Jul 06 2020 20:42:08.174] LOG Option not found Need advice...

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 09:32
  dnn_backend_native: Add overflow check for length calculation. - Reimar Döffinger git.videolan.org Git - ffmpeg.git/rss log
  dnn_backend_native: Add overflow check for length calculation. We should not silently allocate an incorrect sized buffer. Fixes trac issue #8718. Signed-off-by: Reimar Döffinger <Reimar.Doeffingerⓐgmx.de> Reviewed-by: Michael Niedermayer <michaelⓐniedermayer.cc> Reviewed-by: Guo, Yejun <yejun.guoⓐintel.com> [DH] libavfilter/dnn/dnn_backend_native.c [DH] libavfilter/dnn/dnn_backend_native.h [DH] libavfilter/dnn/dnn_backend_native_layer_conv2d.c [DH] libavfilter/dnn/dnn_backend_native_layer_depth2space.c [DH] libavfilter/dnn/dnn_backend_native_layer_mathbinary.c [DH] (...)

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 14:14
  Improving Google Cloud Speech-to-Text accuracy - lr_optim Newest 'ffmpeg' Questions - Stack Overflow
  I'm working on a project where I need to perform these steps: Record a voice call (.webm -file) Split the webm -file into chunks with ffmpeg and convert the file into wav Transcribe the chunks using SpeechRecognition -library and Google Cloud API I've faced problems with the transcription accuracy and wondering if there is something I could do to improve it. At the time I'm splitting the original file into 30s chunks. I thought there might be one problem, that I might be missing words because of splitting so I've tried also with longer chunks (...)
• 12:58
  FFmpeg Zoom in and out video every x seconds problem - cleanguy Newest 'ffmpeg' Questions - Stack Overflow
  I want to zoom in 3 seconds every 6 seconds and then zoom out. I can do this, but the sound slips. video zoom periodically What would be the reason ? ffmpeg -i "test.mp4" -vf "zoompan=z='if(lte(mod(time,4),3),zoom+0.5,zoom-0.2)':x='iw/2-(iw/zoom)/2':y='ih/2-(ih/zoom)/2':d=1:fps=24" -vcodec libx264 -acodec aac -preset ultrafast "rendered/test.mp4"
• 06:54
  adjust volume just for 1 loop with ffmpeg - alde Newest 'ffmpeg' Questions - Stack Overflow
  What i've achieved so far is looping bgAudio and delay the mainAudio for 5 sec. But, there is issue when the bgAudio start to loop then its volume start again from 7.0, not from 0.9. ffmpeg version = 3.0.1 "-i", mainAudio, "-filter_complex", "amovie=bgAudio:loop=999,volume=enable='between(t,0,5):volume=7.0',volume=enable=" + "'between(t,5.01,0):volume=0.9'[s];[0:0]adelay=5000|5000," + "volume=6.0[a];[a][s]amix=inputs=2:duration=first", "-ss", "0", "-c:a", "aac", (...)
• 05:09
  Watch My Hero Academia Heroes Rising Full Movie Online FREE #2019 - sarahlburke58 Newest 'ffmpeg' Questions - Stack Overflow
  Watch My Hero Academia: Heroes Rising (2018) Full Movie Online HD Streaming Free Unlimited Download, Watch My Hero Academia: Heroes Rising (2018) Full Series 2017 Online Movie for Free DVD Rip Full HD With English Subtitles Ready For Download. Watch My Hero Academia: Heroes Rising Full MOVIE HD ►► Watch My Hero Academia: Heroes Rising (2018) Movie Free 2017 1080p, 720p, BrRip, DvdRip, CapRip, Telesyc, High Quality, My Hero Academia: Heroes Rising (2018) Movie Online, My Hero Academia: Heroes Rising (2018) Movie Full HD Free. Watch My Hero Academia: Heroes Rising (2018) (...)

5 July

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 22:23
  Nodejs + FFMPEG + AWS EC2 - Broken Pipe - Jordan H. Newest 'ffmpeg' Questions - Stack Overflow
  I have an AWS EC2 instance (t2.micro) running a Nodejs script. This script awaits an FFMPEG stream via HTTP and re-broadcasts it via a websocket server (see websocket-relay.js here). On the same EC2 instance, I use FFMPEG to stream from a file to the aforementioned HTTP input. After exactly one (1) minute, FFMPEG generates the following error: BEGINNING OF ERROR ------ av_interleaved_write_frame(): Broken pipe Last message repeated 1 times Error writing trailer of http://127.0.0.1:8081/secretkey: Broken pipe frame= 1209 fps= 20 q=1.0 Lsize= 49968kB time=00:00:59.89 (...) -- here, http://127.0.0.1:8081/secretkey
• 21:59
  Compile OpenCV with Cmake to integrate it within a Conda env - YellowishLight Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to follow these instructions inspired from here to compile OpenCV so that it gets integrated within a Conda environment that I previously set. However, when I import cv2 within this conda environment, python3 doesn't find it. Here are the instructions that I follow to install Opencv : sudo apt-get update sudo apt-get upgrade sudo apt-get install build-essential cmake git libgtk2.0-dev pkg-config libavcodec-dev libavformat-dev libswscale-dev sudo apt-get install python3.6-dev python3-numpy libtbb2 libtbb-dev sudo (...) -- here
• 21:17
  Problem using FFmpeg to convert MKV with A/52 B audio (aka E-AC3) to AAC - nxl4 Newest 'ffmpeg' Questions - Stack Overflow
  I've got a number of MKV files which are (per VLC) encoded with A/52 B (aka E-AC3) audio codecs. I would like to convert these to AAC, but I'm having trouble doing this with FFmpeg. The command I'm running is: ffmpeg -hwaccel auto -i original_file.mkv -y -c:v copy -c:a aac output_file.mkv The command completes without error. However, the generated file has no audio when I play it. FFmpeg's output is as follows: ffmpeg version 4.2.2-1ubuntu1 Copyright (c) 2000-2019 the FFmpeg developers built with gcc 9 (Ubuntu 9.3.0-3ubuntu1)  (...)
• 20:27
  Cutting the videos based on start and end time using ffmpeg - Kalai Newest 'ffmpeg' Questions - Stack Overflow
  I tried to cut the video using the start and end time of the video by using the following command ffmpeg -ss 00:00:03 -t 00:00:08 -i movie.mp4 -acodec copy -vcodec copy -async 1 cut.mp4 By using the above command i want to cut the video from 00:00:03 to 00:00:08. But it is not cutting the video between those times instead of that it is cutting the video with first 11 seconds. can anyone help me how resolve this? Edit 1: I have tried to cut by using the following command which is suggested by mark4o ffmpeg -i movie.mp4 -ss 00:00:03 -t (...)
• 20:12
  ffmpeg sorting order issue while creating video - Suhaanaa Shah Newest 'ffmpeg' Questions - Stack Overflow
  I am able to successfully able to convert images to video using below command where all photos of out directory is used. $command1 = "ffmpeg -r 1/1 -framerate 25 -pattern_type glob -i 'out/*.jpg' -c:v libx264 -profile:v high -crf 20 -pix_fmt yuv420p -vf 'pad=ceil(iw/2)*2:ceil(ih/2)*2' out/1.mp4"; exec($command1); However the photos are getting picked randomly and I want to pick them using sort order example. Pic1.jpg, Pic2.jpg, Pic2.jpg ...... Please (...)
• 19:59
  Using FFmpeg to zoom in then zoom out in a video - david Newest 'ffmpeg' Questions - Stack Overflow
  I would like to use FFmpeg on a video to zoom in and stay zoomed for 3 seconds then zoom out to full screen and stay like that for 3 seconds and repeat this cycle through the whole video Thanks in advance.
• 19:55
  Capture ffmpeg's metadata output in powershell - xdhmoore Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to capture the output of ffmpeg in PowerShell(tm) to get some metadata on some ogg & mp3 files. But when I do: ffmpeg -i file.ogg 2>&1 | sls GENRE The output includes a bunch of lines without my matching string, "GENRE": album_artist : Post Human Era ARTIST : Post Human Era COMMENT : Visit http://posthumanera.bandcamp.com DATE : 2013 GENRE : Music TITLE : Supplies track : 1 At least one output file must be specified I am guessing something is different in the encoding. ffmpeg's (...) --
• 19:03
  Blur MP4 video section for x seconds using FFmpeg - sigur7 Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to blur out an account ID that is showing in the footer of my video for the first 47s. I have managed to do an entire page blur for 47 seconds and blurred out the desired section for the entire video, but not managed to be able mix the two to get the desired result? Adding the between section to the original blurbox command keeps throwing errors. Blurs entire video for first 48 seconds ffmpeg -i original.mp4 -vf "boxblur=enable='between(t,0,47)'" -codec:a copy blurred.mp4 Blurs a certain segment, but for the whole video ffmpeg -i original.mp4 (...)
• 19:02
  How can I get ffmpeg to stream my webcam? - nonlinearmind Newest 'ffmpeg' Questions - Stack Overflow
  I want to stream my webcam and managed to stream it successfully to bambuser.com using the following, but need to be able to view it locally. This successfully posts it to babuser: ffmpeg -v debug -f alsa -ac 1 -i hw:1,0 -acodec libmp3lame -itsoffset 00:00:00 -f video4linux2 -s 360x240 -i /dev/video0 -r 15 -f flv -ar 44100 rtmp://522f4133d0.fme.bambuser.com/b-fme/0bacf5bb634dbbbd52bdd99d71406dc6f362c I've tried the following, but get "RTMP_Connect0, failed to connect socket. 111 (Connection refused) rtmp://localhost:8090/: Operation not (...)
• 18:08
  How can I cut the video before concatenation in video-filter? - Yury Zinoviev Newest 'ffmpeg' Questions - Stack Overflow
  I need concatenate two videos (video2.mp4 + video1.mp4), but before I have to cut the first 15 (for instance) seconds of the first video (video1.mp4). But I can't use -ss option in this case. ffmpeg -i video1.mp4 -i video2.mp4 -filter_complex "[0:v]trim=start=15[vid];[0:a]atrim=start=15[aud];[1:v][1:a][vid][aud]concat=n=2:v=1:a=1[v][a]" -map '[v]' -map '[a]' out.mp4 In this case, I may not use -ss option before first -i input file. So I need to cut the video1.mp4 using filter_complex abilities. But the trim options results not the same result (...)
• 17:57
  Concatenate sped up videos and normal speed ones using ffmpeg - FlucTuAte. Newest 'ffmpeg' Questions - Stack Overflow
  I have a python script that uses ffmpeg to cut different sections of a video. There are ones that i want to keep as-is, and i use this ffmpeg command for that: os.system(( "ffmpeg " "-loglevel error " "-nostats " "-hide_banner " f"-ss start / fps " f"-i \\"uncutVideo\\" " f"-t (end - start) / fps " "-c copy " "-avoid_negative_ts make_zero " f"tmp\\\\outprocessedClips.mp4" )) Start and end are frame numbers, that's why i divide by fps. Then I have the parts where I want to speed up the video. I use this command for (...)
• 13:50
  Turn image sequence into video with transparency - Cody Hatch Newest 'ffmpeg' Questions - Stack Overflow
  I've got what seems like it should be a really simple problem, but it's proving much harder than I expected. Here's the issue: I've got a fairly large image sequence consisting of numbered frames (output from Maya, for what its worth). The images are currently in Targa (.tga) format, but I could convert them to PNGs or other arbitrary format if that matters. The important thing is, they've got an alpha channel. What I want to do is programatically turn them into a video clip. The format doesn't really matter, but it needs to be lossless (...)
• 10:21
  Saving immediately each converted image to video file - Adam Lasota Newest 'ffmpeg' Questions - Stack Overflow
  I want to ask about solution to streaming many of image to video. I traied use ffmpeg java, Jcodec, Humble-Video but this api providing static convert. Is means that gets all images, process it and save to file. For example (pseudocode): JCodec jcodec= new Jcoced(file.mp4);//could be ffmpgRecorder for(image:images) jcodec.record(image); jcodec.stop() jcodec.release() If execute jcodec.stop() then to file is flushed converted images. Is possible to saving file image by image and stream to file? Images for application are providing by (...)
• 08:18
  ffmpeg hls_time option is not working with h264_nvenc - viet1pro Newest 'ffmpeg' Questions - Stack Overflow
  I want splitting video into HLS slice using -hls_time, but only -codec copy can use this. I have tried adding key frame like this but still can't use -force_key_frames expr:"gte(t,n_forced*1)" This is code that can use -hls_time ffmpeg -i "/content/test.mp4" -codec copy -hls_list_size 0 -hls_time 6 /content/'480p.m3u8' And this is code that -hls_time not work ffmpeg -vsync 0 -hwaccel cuvid -i "/content/test.mp4" -c:a copy -c:v h264_nvenc -gpu 0 -b:v 1400000 -force_key_frames expr:"gte(t,n_forced*1)" -hls_time (...)
• 06:04
  Im getting error when generating thumbnails using ffmpeg in firebase functions - Sajjad Newest 'ffmpeg' Questions - Stack Overflow
  I'm writing this code for generating thumbnail from a video uploaded to firebase storage using FFmpeg, I am saving thumbnails first in the temp directory and then uploading it to firebase storage. The thumbnails are saved in temp dir but I'm getting an error while saving it to firebase storage. (EISDIR ERROR) const targetTempFilePath = path.join(os.tmpdir(), targetTempFileName); const targetStorageFilePath = path.join(path.dirname(filePath), targetTempFileName); ffmpeg.ffprobe(req.body.videoUrl, (err, metaData) => if (err) console.log(err);  (...)
• 04:28
  How to set a dictionary based off of subprocess.check_output - Jessie Wilson Newest 'ffmpeg' Questions - Stack Overflow
  This is a confusing question, however I will try to make it as clear as possible. Currently when I build my app, if I run it via the .py file it works perfectly. However, once I compile it some parts of my app aren't functioning, specifically this code here. def ffprobe_run(): global output global acodec_choices run = subprocess.check_output("ffprobe " + videoinputquoted + " " + ffprobecommand, universal_newlines=True) print(run) if run[-2] == '3': acodec_choices = "One": "1", "Two": "2", "Three": "3" elif (...) -- enter image description here, enter image description here
• 03:47
  How to make ffmpeg respect the "start_time" variable when combining cdg and mp3? - Steffen Poulsen Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to combine two .cdg and .mp3 files because I want to make a single .mkv file out of them. When I do it I get a .mkv file alright, but the audio is unfortunately not synced with the video. So, I was wondering why this is? Apparently I must be missing a parameter on my command or something. What I do is this: ffmpeg -y -i song.cdg -i song.mp3 -pix_fmt yuv420p -vcodec libx264 -acodec copy song.mkv It works fine, but in this particular case the result is out of sync by ~1.2 seconds. This varies per song, from 0 to a couple (...)

4 July

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 14:32
  avfilter/vf_showinfo: add dump_s12m_timecode() helper function - Limin Wang git.videolan.org Git - ffmpeg.git/rss log
  avfilter/vf_showinfo: add dump_s12m_timecode() helper function Signed-off-by: Limin Wang <lance.lmwangⓐgmail.com> [DH] libavfilter/vf_showinfo.c
• 14:32
  avfilter/vf_showinfo: check sd->size before reference the sd->data - Limin Wang git.videolan.org Git - ffmpeg.git/rss log
  avfilter/vf_showinfo: check sd->size before reference the sd->data Or it'll cause null pointer dereference if size < sizeof(uint32_t), also in case tc[0] > 3, the code will report error directly. Signed-off-by: Limin Wang <lance.lmwangⓐgmail.com> [DH] libavfilter/vf_showinfo.c
• 18:51
  avformat/mov: Fix unaligned read of uint32_t and endian-dependance in mov_read_default - Zhao Zhili git.videolan.org Git - ffmpeg.git/rss log
  avformat/mov: Fix unaligned read of uint32_t and endian-dependance in mov_read_default Reviewed-by: Andreas Rheinhardt <andreas.rheinhardtⓐgmail.com> Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavformat/mov.c
• 21:03
  libavcodec/jpeg2000dec.c: Enable image offsets - Gautam Ramakrishnan git.videolan.org Git - ffmpeg.git/rss log
  libavcodec/jpeg2000dec.c: Enable image offsets This patch enables support for image offsets. Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavcodec/jpeg2000dec.c
• 21:03
  libavcodec/jpeg2000dec: Enhance pix fmt selection - Gautam Ramakrishnan git.videolan.org Git - ffmpeg.git/rss log
  libavcodec/jpeg2000dec: Enhance pix fmt selection This patch assigns default pix format values when a match does not take place. Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavcodec/jpeg2000dec.c
• 14:17
  avcodec/tiff: Check frame parameters before blit for DNG - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/tiff: Check frame parameters before blit for DNG Fixes: out of array access Fixes: 23888/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TIFF_fuzzer-6021365974171648.fuzz Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavcodec/tiff.c
• 14:15
  avcodec/mjpegdec: Limit bayer to single plane outputting format - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/mjpegdec: Limit bayer to single plane outputting format This reduces the number of paths reachable with DNG and should improve security Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavcodec/mjpegdec.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 22:54
  rotate image frame while video recording in android - Rajneesh Newest 'ffmpeg' Questions - Stack Overflow
  i want to rotate image frame while video recording, i found one solution for rotate image byte array like below code. private byte[] rotateYUV420Degree90(byte[] data, int imageWidth, int imageHeight) byte[] yuv = new byte[imageWidth * imageHeight * 3 / 2]; // Rotate the Y luma int i = 0; for (int x = 0; x = 0; y--) yuv[i] = data[y * imageWidth + x]; i++; // Rotate the U and V color components i = imageWidth * imageHeight * 3 / 2 - 1; for (int x = imageWidth - 1; x > 0; x = x - 2) for (int y = 0; (...) --

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 20:57
  avcodec/h264_metadata_bsf: Fix invalid av_freep - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avcodec/h264_metadata_bsf: Fix invalid av_freep This bug was introduced in 3c8a2a1180f03ca6b299ebc27eef21ae86635ca0. Reviewed-by: James Almer <jamrialⓐgmail.com> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐgmail.com> [DH] libavcodec/h264_metadata_bsf.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 19:42
  Correct way of recutting HLS playlist with FFMPEG - somerandomusername Newest 'ffmpeg' Questions - Stack Overflow
  I'm recording a stream on my server and after it finished I need to trim x seconds from the beginning of my video. My stream has master.m3u8 playlist and then 3 sub index_[0|1|2].m3u8 playlists. I'm trying different methods, they all seem to generate a result, but nothing as I expect. For example this : ffmpeg -i index_0.m3u8 -ss 30 -strict -2 -hls_time 6 output_0.m3u Seems to generate the correct nr. of *.ts files, but playlist is is only 30s long. Original #EXT-X-TARGETDURATION was set to 6, now it is 8, but actual size is a floating (...)
• 19:11
  FFserver command not found even install ffmpeg - foy Newest 'ffmpeg' Questions - Stack Overflow
  i follow instruction to install the ffmpeg (https://github.com/udacity/nd131-openvino-fundamentals-project-starter/blob/master/linux-setup.md) sudo apt install ffmpeg However, it does not install ffserver together while it should be after searching on internet. Below is my system configuration Ubuntu 18.04 Python3.7 ffmpeg 4.2.2 Command i want to execute sudo ffserver -f ./ffmpeg/server.conf Expected ffserver version x.x.x.x..... Current result ffserver command not found  (...) -- https://github.com/udacity/nd131-openvino-fundamentals-project-starter/blob/master/linux-setup.md
• 17:12
  permission is denied using Android Q ffmpeg": error=13, Permission denied - gowthami Newest 'ffmpeg' Questions - Stack Overflow
  I want to get the frames from the RTSP video using ffmpeg. But for android 10 above I am getting error as below. E/FFmpeg: Exception while trying to run: [Ljava.lang.String;ⓐ55e447f java.io.IOException: Cannot run program "/data/user/0/com.example.downloadimagefromurl/files/ffmpeg": error=13, Permission denied at java.lang.ProcessBuilder.start(ProcessBuilder.java:1050) at java.lang.Runtime.exec(Runtime.java:698) at java.lang.Runtime.exec(Runtime.java:563) at com.github.hiteshsondhi88.libffmpeg.ShellCommand.run(ShellCommand.java:10) at (...)
• 14:55
  FFmpeg problems encoding and concat - Random Newest 'ffmpeg' Questions - Stack Overflow
  I have 10 videos with different encodings. I would like to re-encode them to the same format and then join them all together into one long video. I have tried the following: Encoding: ffmpeg -y -i -c:v libx264 -crf 23 -preset medium -c:a aac -b:a 128k -movflags +faststart -vf scale=-2:720,format=yuv420p -r 60 -export.mp4 Concat: ffmpeg -y -f concat -safe 0 -i info.txt -s 1280x720 -crf 24 output.mp4 All files are set in the info.txt file, but the problem is that when I'm running the concat command, I just get "non-monotonous dts in output (...)
• 12:12
  Why does ffmpeg return "No such file or directory" - JackNewman Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to split a video file into 2 second increments and then merge the video back together. source_vid_path = r"C:\\SplitAndMergeVids\\Before\\before.mp4" ffcat_path = r'C:\\SplitAndMergeVids\\Chunk\\video.ffcat' chunks_path = r'C:\\SplitAndMergeVids\\Chunk\\chunk-%03d.mp4' segments_time = '2' cmd_input = rf'ffmpeg -fflags +genpts -i source_vid_path -map 0 -c copy -f segment -segment_format mp4 -segment_time segments_time -segment_list ffcat_path -reset_timestamps 1 -v error chunks_path' output = (...)
• 11:14
  Is there any way to capture a frame from RTSP stream with Esp8266? [closed] - Alex Newest 'ffmpeg' Questions - Stack Overflow
  I have a security camera, and I want to capture an image from the RTSP stream with ESP8266, I there any library that can do that?
• 10:01
  SRT protocol not found - Raspbery Pi 4 via ffmpeg - Tim Martin Newest 'ffmpeg' Questions - Stack Overflow
  We tried to stream from a rasp Pi 4 via SRT, but we got a error: "protocol not found". Our command line is: ffplay srt://127.0.0.1:9500?mode=listener&latency=20000 We tried the following guides: https://trac.ffmpeg.org/wiki/CompilationGuide/Ubuntu how to compile ffmpeg with enabling libsrt https://www.undergroundnews.dk/index.php/item/107-rtmp-eller-srt-streaming Those guides worked so far and compiled but we still got the error message. Do you have any ideas how to get the srt protocol working on a pi via (...) -- https://trac.ffmpeg.org/wiki/CompilationGuide/Ubuntu, https://www.undergroundnews.dk/index.php/item/107-rtmp-eller-srt-streaming
• 08:37
  ffmpeg and ffprobe file installation suggestion - Mithun Deshmukh Newest 'ffmpeg' Questions - Stack Overflow
  Where to run below code in WHM terminal or need to update in config.php? $ffmpeg_lib="/usr/bin/"; $ffprobe_lib="/usr/bin/"; $ffmpeg = FFMpeg\\FFMpeg::create(array( 'ffmpeg.binaries' => $ffmpeg_lib.'ffmpeg', 'ffprobe.binaries' => $ffprobe_lib.'ffprobe', 'timeout' => 3600, // The timeout for the underlying process 'ffmpeg.threads' => 12, // The number of threads that FFMpeg should use ), null);  (...)
• 08:26
  Unable to find a suitable output format for 'output' - Lewis Day Newest 'ffmpeg' Questions - Stack Overflow
  I am running this command via SSH; ffmpeg -f concat -safe 0 -i "https://domain.co.uk/playlist.txt" output -f flv "rtmp://ip/live/test" however I am getting the following error; libavutil 54. 31.100 / 54. 31.100 libavcodec 56. 60.100 / 56. 60.100 libavformat 56. 40.101 / 56. 40.101 libavdevice 56. 4.100 / 56. 4.100 libavfilter 5. 40.101 / 5. 40.101 libavresample 2. 1. 0 / 2. 1. 0 libswscale 3. 1.101 / 3. 1.101 libswresample 1. 2.101 / 1. 2.101 libpostproc 53. 3.100 / 53. 3.100 [mov,mp4,m4a,3gp,3g2,mj2 ⓐ 0x9e1cc0] Auto-inserting (...)
• 08:10
  "Reading" the screen during ffmpeg recording - Zhiltsoff Igor Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to write down a script which would record my screen using ffmpeg and stop automatically. I wonder if there is a way to somehow “read” the current screen and check it. I imagine it go something like this in bash: ffmpeg -video_size 1024x768 -f x11grab -r 24 -s 1920x1080 -i :0.0 -f pulse -an -ac 2 -i default -c:v libx264 -preset ultrafast -b:v 500k $1& # the `&` is added at the end of the first line to run ffmpeg in bg. let “t=$2*95/100” # sleep $t until ??? do sleep 60 done killall -SIGINT ffmpeg Note: It would probably look (...)
• 07:40
  FFMPEG fnExtractFrameToJPG to DB sequelize - jjplack Newest 'ffmpeg' Questions - Stack Overflow
  after process the video i would like to pass the first frame screenshot to to db! I've tried by get the originalname or filename and did not get the exact thumb file So, i've tried also use fs but, the issue is that after the thumb creation the FFMPEG add the thumb number to identify the frame, and seems impossible to get the same thumb. Someone can help? here is the code fastify.route( method: "POST", preHandler: upload.single("video"), handler: async function(request, reply) const Post = fastify.sequelize;  (...)
• 07:29
  ffmpeg - what is the default format for .m4a output? - Evelyn Newest 'ffmpeg' Questions - Stack Overflow
  I have two commands, one in which I specify the output format as -f mp4: ffmpeg -i input.wav -ac 1 -c:a libfdk_aac -profile:a aac_he -vbr 2 -f mp4 test_export_1.m4a And one which lets ffmpeg guess based on the extension: ffmpeg -i input.wav -ac 1 -c:a libfdk_aac -profile:a aac_he -vbr 2 test_export_2.m4a This gives me two different results. The first one: $ffprobe test_export_1.m4a Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'test_export_1.m4a': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2mp41  (...)
• 02:10
  ffmpeg - Convert MP4 to WebM, poor results - fightstarr20 Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to encode a video to webm for playing through a HTML5 video tag. I have these settings... ffmpeg -i input.mp4 -c:v libvpx-vp9 -b:a 128k -b:v 1M -c:a libopus output.webm The results aren't great, video has lost lot's of it's sharpness. Looking at the original file I can see the bitrate is 1694kb/s. Are there any settings I can add or change to improve the output? Would maybe a 2 pass encode improve (...)
• 00:01
  Ffmpeg create gif from images with fullPath - padavan Newest 'ffmpeg' Questions - Stack Overflow
  I need create gif from images in one line (without external file with list images). I dont understand how create if i have full paths ? /home/userMo/test/dir1/4.jpg /home/userMo/pics/late/sada_342.jpg I try by concat , but its dont work ffmpeg -i "concat:/home/userMo/test/dir1/4.jpg|/home/userMo/pics/late/sada_342.jpg" -loop -1 out.gif

3 July

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 23:55
  avcodec/pnmdec: Fix misaligned reads - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/pnmdec: Fix misaligned reads Found-by: "Steinar H. Gunderson" <steinar+ffmpegⓐgunderson.no> Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavcodec/pnmdec.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 21:58
  How to convert mp4 Video to (.m3u8) playlist nodejs - Rohail Butt Newest 'ffmpeg' Questions - Stack Overflow
  I'm creating a Video Listening web Application. In which users can watch videos. How can I convert mp4 video to .m3u8 playlist in node?
• 21:50
  Create dynamic audio broadcast stream (node, ffmpeg, ..?) - TheCrunkiee Newest 'ffmpeg' Questions - Stack Overflow
  I have coded a videoboard. Like a soundboard but with video. You go to one URL that's just a black screen and another one which has a list of different videos (sender). When you click one of these videos it plays on the black screen (receiver). If you play 2 different videos at the same time both videos are shown next to each other on the receiver. That's working fine for several months now. It just creates multiple html video-elements with multiple source-tags (x265 mp4 and vp9 webm). I recently made a discord bot which takes the webm, extracts the opus stream and plays (...)
• 21:18
  DXVA2/D3D11 encoders not available in FFmpeg for no apparent reason - user1134621 Newest 'ffmpeg' Questions - Stack Overflow
  this is a weird one. I am trying to set up FFmpeg for hardware encoding of a live input into h264. I got it working fine on Linux with VAAPI. On Windows I was probably successful as well with NVENC but I do not have a NVENC capable card to check. What has been giving me a headache is encoding through DXVA2 or D3D11VA. FFmpeg picks up available hardware but it will not give me any suitable encoders. I even built FFmpeg myself to make sure that all the CONFIG_DXVA_HWACCEL switches are enabled, I can grep the binary for h264_dxva2 etc. and see that they are there. However, calling (...)
• 20:36
  FFMPEG making requests for each frame when decoding a stream, slow performance - Byti Newest 'ffmpeg' Questions - Stack Overflow
  I am having an issue playing MOV camera captured files from an iPhone. My FFMPEG implementation has no problem playing most file formats, this issue is exclusive only for camera captured MOV. When trying to open the file, I can see in the logs that many requests are made, each requests decoding only one frame, before making a new request which results the video being buffered extremely slowly. It takes roughly a minute to buffer about a few seconds of the video. Another thing to mention is that the very same problematic file is played without an issue locally. The (...)
• 19:38
  Pipe images to video with flutter_ffmpeg in flutter - Avi Sangray Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to manipulate images from image stream received from camera in flutter and then save them to a video using flutter_ffmpeg. i'm able to open a pipe but code is unresponsive after that here's the code controller.startImageStream((CameraImage camimage) //do manipulations and get pointer of the data returned from the function to a List List imgData = add_filters_and_text(camimage); imglib.Image img = imglib.Image.fromBytes(_savedImage.height, _savedImage.width, imgData);  (...)
• 19:31
  Why my concated videos resulting in fps drop? - swdev Newest 'ffmpeg' Questions - Stack Overflow
  I have one main .mp4 video and several logo .mp4 videos. I manage to create python script that eventually called ffmpeg.exe to create duplicate of that one main .mp4 video into distinct ..mp4 video with different logo Problem is, sometimes (I think if the file size is in more than 1GB) the generated video resulted in audio that plays sooner than the video. This is my command to produce that concatenated video: ffmpeg.exe -f concat -safe 0 -i "file_list_name" -c copy "target_file" -y file_list_name is .txt file with content such as: file 'logo1.mp4' file (...)
• 17:10
  Pipe images to video with flutter_ffmpeg - Avi Sangray Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to manipulate images from image stream received from camera in flutter and then save them to a video using flutter_ffmpeg. i'm able to open a pipe but code is unresponsive after that here's the code controller.startImageStream((CameraImage camimage) //do manipulations and get pointer of the data returned from the function to a List List imgData = add_filters_and_text(camimage); imglib.Image img = imglib.Image.fromBytes(_savedImage.height, _savedImage.width, imgData);  (...)
• 18:23
  Unrecognized option 'map 0:a?' - Bleakley Newest 'ffmpeg' Questions - Stack Overflow
  Trying to make derivatives of silent video files is failing. My understanding is adding a trailing ? to the -map option makes ffmpeg ignore that stream if it does not exist, but its not working. The full script is below. ffmpeg -n -vsync 0 -nostdin -v info -hide_banner -stats -i "$FILE" -movflags faststart -pix_fmt yuv420p -map 0:v -map 0:a? -c:v libx264 -vf "yadif=1,format=yuv420p" -crf "$CRFVALUE" -preset "$PRESETSPEED" -maxrate "$MAXRATE"k -bufsize 1835k -c:a aac -strict -2 -b:a 384k -f mp4 "$OUTPUT" withouth the ? after -map 0:a it works with files containing audio (...)
• 15:53
  How to ffprobe YouTube videos - nicholas Newest 'ffmpeg' Questions - Stack Overflow
  How can I get duration, width and height of YouTube video using FFprobe? I tried ffprobe -i https://www.youtube.com/watch?v=YkgkThdzX-8 -v quiet -print_format json -show_streams -hide_banner but it returns an empty json
• 15:38
  How can I do videos into a better format without losing resolution and quality? - Melissa Newest 'ffmpeg' Questions - Stack Overflow
  I have the job of developing a video converter program. I started to do a lot of research and development on this subject. I currently have a problem like this. The videos of the institution where I developed the converter are in mxf 50 megabit 4: 2: 2 format. They want me to turn these videos into a better format without losing resolution and quality. For example, they said I could try h.265. In my work, the resolution and the quality of the video change in direct proportion when the format changes, how can I overcome this with an algorithm? As I have just learned about the FFMPEG (...)
• 15:36
  ffmpeg4.1.3 built with Android NDK is 4 times bigger than linux gcc - ravin.wang Newest 'ffmpeg' Questions - Stack Overflow
  FFmpeg version: 4.1.3 android-ndk-r19c, 44 MB (armeabi-v7a) gcc-7: 9.7 MB (x86_64) The configuration is almost the same: For android-ndk-19c: I didn't link x264, under Linux x86_64, x264 is linked, so in theory Linux X86_64 links more code than the android one. #!/bin/bash # set the toolchain TOOLCHAIN=$NDK_HOME/toolchains/llvm/prebuilt/linux-x86_64 CROSS_PREFIX=$TOOLCHAIN/bin/arm-linux-androideabi- rm -f $(pwd)/compat/strtod.o function build_one #configure ffmpeg w/o libx264 ./configure \\  (...)
• 14:58
  efficiently compressing an AVI video for PowerPoint - brownfox Newest 'ffmpeg' Questions - Stack Overflow
  I have a few AVI videos of very high bit-rate ( 6.0 Second video is 72 MB in size ). I want to put these videos in a Microsoft PowerPoint presentation, and since there are a few 10 such videos the size of the presentation file is getting too high. I want to compress these videos to have a reasonable size. I used ffmpeg to compress these videos. I used the command ffmpeg -i input.avi -vcodec msmpeg4v2 output.avi and it gave me a compressed video of size 9.0 MB. But these new videos are not playing smoothly in Powerpoint (they are playing in other media players (...)

Revisions : SPIP http://core.spip.org/projects/spip/activity

• 15:19
  Anomalie #4483: Masquer le bouton Télécharger si Bigup est bien actif - RastaPopoulos ♥ Revisions : SPIP
  mais t'as vraiment nommé ta branche avec un # ? Le nom de la branche est utilisée dans l'URL ensuite, et donc forcément # ça veut dire une ancre dans une URL… donc du coup l'URL générée est en fait "bigup/issue" à la fin, ce qui n'existe pas, non ?
• 15:06
  Anomalie #4483: Masquer le bouton Télécharger si Bigup est bien actif Revisions : SPIP
  Y'a le bouton, je peux dire que je choisi spip:master dans la liste déroulante. Et là, je tombe sur une 404 : https://git.spip.net/spip/bigup/compare/master...RealET/bigup:issue%234483

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 13:39
  Is there any opportunity to detect that video was recorded vertically(portrait view), with FFMpegCore? - Vlad Mosienko Newest 'ffmpeg' Questions - Stack Overflow
  The problem is that when I take a video thumbnail, it looks flattened. I know that its possible to pass Size to FFMpeg.Snapshot() function, but I need to know is video vertical or not (to specify either I want to get portrait or landscape snapshot(e.g.: new Size(200,400) or new Size(400,200) ). Thank you for your answers!
• 13:31
  How to cut a video in specific start & end time in ffmpeg by Node JS? - Bilash Newest 'ffmpeg' Questions - Stack Overflow
  I want to cut a video in specific start & end time & save it. I am able to copy a full video but cant understand to how to cut specific time of that video by Node JS. Video copy code : ffmpeg('public/'+req.body.video) .on('end', function(err) if(!err) console.log('Done'); ) .on('error', function(err) console.log('error: '+err); callback(err);  (...)
• 12:47
  Matplotlib animation error : Requested MovieWriter (ffmpeg) not available, while ffmpeg is installed - Vivien Bonnot Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to animate colormapping representations of parametric complex fonctions using Python. I gradually put some things together, and checked that they worked properly. But I can't get the animation to be saved. I encountered this error : Requested MovieWriter (ffmpeg) not available However, ffmpeg is indeed installed on my system, on Windows console ffmpeg -version returns all sorts of informations about ffmpeg. Additionnaly, I also installed ffmpeg in Python scripts directory using pip pip install ffmpeg, which was successfull. I also set up ffmepg (...)
• 12:35
  FFMPEG gives pull error in the middle of song [discord.py] - Horizon Development Newest 'ffmpeg' Questions - Stack Overflow
  It stops playing in the middle of the song. error: [tls ⓐ 0000019a745b13c0] Error in the pull function. [matroska,webm ⓐ 0000019a745ad200] Read error [tls ⓐ 0000019a745b13c0] The specified session has been invalidated for some reason. Last message repeated 1 times ffmpeg options: ffmpegopts = 'before_options': '-reconnect 1 -reconnect_streamed 1 -reconnect_delay_max 5', 'options': (...)
• 12:29
  How can i increase my fps output ? (ffmpeg, nodejs) - Julien FEGER Newest 'ffmpeg' Questions - Stack Overflow
  I'm having quite the trouble understanding how fps output works. I have a video workflow through node and ffmpeg that transform picture into scrolling videos, here is the command : const ffmpeg = spawn('ffmpeg', ['-f', 'lavfi', '-i', 'color=s=1280x720', '-loop', '1', '-i', `$path/$video.name`, '-filter_complex', `[1:v]scale=1280:-2,format=yuv420p,fps=fps=60[fg]; [0:v][fg]overlay=y=-\\'t*h*0.02\\'[v]`, '-map', '[v]', '-t', `$clipDuration`, (...)
• 10:41
  av_read_frame of ffmpeg in windows always returning random packet.stream_index - Hugo Charasss Newest 'ffmpeg' Questions - Stack Overflow
  I'm using ffmpeg to decode an rtsp stream, the av_read_frame is always returning random value on packet.stream_index. The stream have only 2 index, 1 video and 1 audio respectively on streams[0] and streams[1]. But when i call av_read_frame, i've random value on packet.stream_index and no data in the packet. If someone can help me, i'm beginner in FFMPEG. I add my simplified code to make you an idea of what i do : AVFormatContext* input_ctx = NULL; AVStream* video_st = NULL; AVCodecContext* decoder_ctx = NULL; AVCodec* (...)
• 10:38
  use ffmpeg in vba to change video format - Iban Arriola Newest 'ffmpeg' Questions - Stack Overflow
  I want to change the video format of the embedded videos that appears in a presentation. I achieve to export the video file to another folder using the following code: Dim Finame As Variant Dim oApp As Object Dim StoreFolder As Variant Dim Videoname As Variant Dim FileNameFolder As Variant MkDir "C:\\template\\videoZip" Set oApp = CreateObject("Shell.Application") FileNameFolder = "C:\\template\\videoZip\\" Finame = ActivePresentation.Path & "\\" & ActivePresentation.Name StoreFolder = "C:\\template\\created_files\\"  (...)
• 09:47
  FFmpeg concat fade effect - TheCow Newest 'ffmpeg' Questions - Stack Overflow
  I'm currently using this command: ffmpeg -f concat -safe 0 -i info.txt -s 1280x720 -crf 24 output.mp4 to join all videos in a folder. Before running the command I have entered "file " into the info.txt file. This works perfectly, but I would like to get a fade effect between all videos (crossfade). How is this possible? I have tried adding the following argument, but it didn't work. I found it online on an old post. -filter_complex xfade=offset=4.5:duration=1 If anyone has a simple way of doing it, please let me know. I'm using the latest FFmpeg, (...)
• 07:00
  How to encode jpeg images to H264 very fast (transform images to video) - Paul Newest 'ffmpeg' Questions - Stack Overflow
  I have 30 JPEG images (.jpg) at a resolution of 480 x 640. Each image takes aboout 20KB (all of them takes about 600KB). I am using FFmpeg command to encode these images into a video in H264 format. I need this to be done very fast - about 1 second. Using the classic command: ffmpeg -y -f image2 -r 1/5 -i image_%d.jpg -c:v libx264 -r 30 video.mp4 takes about 90 seconds. After adding -preset ultrafast: ffmpeg -y -f image2 -r 1/5 -i image_%d.jpg -c:v libx264 -preset ultrafast -r 30 video.mp4 the (...)
• 04:50
  Output both m3u8 and segment files to stream - DrNickEgg Newest 'ffmpeg' Questions - Stack Overflow
  This is likely a small fix but I am trying to read an .mp4 file from a download stream and convert it to HLS. I created a write stream to output the conversion. I am using google cloud storage to get the read/write streams. The problem is, the segments are not streamed and are exported locally, while the .m3u8 file is sent properly via the pipe. Is there a way to stream both the .ts and .m3u8 playlist to my pipe output, so nothing gets exported locally? const readStream = gcp.bucket().file('video.mp4').createReadStream(); const outputStream = (...)
• 03:34
  A specific MP4 file is not playable with avfoundation in iOS - Rabel Ahmed Newest 'ffmpeg' Questions - Stack Overflow
  I have an mp4 video file that I want to play it in iOS using avfoundation. Unfortunately, the file is not being played and unable to save into the default gallery(photos) even it has h264 video codec and aac audio codec. And it is only playable when I reencode it using ffmpeg. I want to know why the file only becomes playable after reencoding the video? Not Playable(originalFile.mp4) vs Playable File(outputFile.mp4) Information Comparison File is playable with avfoundation when these commands are being applied: ffmpeg -y -hide_banner -i originalFile.mp4 -f mp4 (...) -- , https://drive.google.com/file/d/1-yZFL0EsLztMIfwU79Al6dv8gdwJyGAD/view?usp=sharing, https://www.diffchecker.com/VgZL66QB
• 00:21
  ffmpeg set matroska "TRACK" metadata - Tobias Brohl Newest 'ffmpeg' Questions - Stack Overflow
  I want to set the "TRACK" field of a matroska container (see https://www.matroska.org/technical/tagging.html, section Target types) using ffmpeg. When using -metadata TRACK=7 ffmpeg sets the value of PART_NUMBER to 7 (which means Disc 7, according to spec and common implementations), but not "TRACK". How do I make ffmpeg write to the "TRACK" field? -- https://www.matroska.org/technical/tagging.html

2 July

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 04:53
  avcodec/libaomenc: fix build w/libaom v1.0.0 - James Zern git.videolan.org Git - ffmpeg.git/rss log
  avcodec/libaomenc: fix build w/libaom v1.0.0 broken since: aa5c6f382b avcodec/libaomenc: Add command-line options to control the use of partition tools Reviewed-by: James Almer <jamrialⓐgmail.com> Signed-off-by: James Zern <jzernⓐgoogle.com> [DH] doc/encoders.texi [DH] libavcodec/libaomenc.c
• 21:19
  libavformat/img2dec: Added pgx demuxer - Gautam Ramakrishnan git.videolan.org Git - ffmpeg.git/rss log
  libavformat/img2dec: Added pgx demuxer This patch adds support to demux pgx file format. Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavformat/allformats.c [DH] libavformat/img2dec.c [DH] libavformat/version.h
• 21:19
  libavcodec/pgxdec: Add PGX decoder - Gautam Ramakrishnan git.videolan.org Git - ffmpeg.git/rss log
  libavcodec/pgxdec: Add PGX decoder This patch adds a pgx decoder. Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] Changelog [DH] doc/general.texi [DH] libavcodec/Makefile [DH] libavcodec/allcodecs.c [DH] libavcodec/codec_desc.c [DH] libavcodec/codec_id.h [DH] libavcodec/pgxdec.c [DH] libavcodec/version.h

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 23:23
  Use ffprobe on Sagemaker Jupyter Notebook: /bin/sh: 1: ffprobe: not found - Guu Newest 'ffmpeg' Questions - Stack Overflow
  I need to use FFprobe to get the metadata(the orientation of the video) of videos on SageMaker Studio. Even I installed FFmpeg and FFprobe via pip install, the notebook doesn't recognize the packages. /bin/sh: 1: ffprobe: not found It is tricky since I've already tried to install them on System terminal and it worked, but it still doesn't work on the Image terminal or Jupyter Notebook. Is that because of the dependencies? I've checked other ways to get the metadata but couldn't find one working. I could get simple metadata via hachoir-metadata but (...)
• 23:19
  Set name of matroska attachment using ffmpeg - Tobias Brohl Newest 'ffmpeg' Questions - Stack Overflow
  So when attaching files to a matroska container they get a name, normally their original name. However when you are running windows and you supply the full path to the file you want to attach, ffmpeg sets that full path as name of the attachment. How can I rename that attachment, preferably in the same command as the attachment process?
• 23:17
  How to concat 2 aac files using ffmpeg with delay between? - nuclear kote Newest 'ffmpeg' Questions - Stack Overflow
  I try to concat 2 aac files: ffmpeg -i 2.aac -i 3.aac -filter_complex "[0]asetpts=0;[1]asetpts=8000; concat=n=2:a=0:a=1 [aout]" -map "[aout]" out.aac first to 0 second, second to 8's second I got the following error: Cannot find a matching stream for unlabeled input pad 0 on filter Parsed_concat_2 What I'm doing wrong?
• 22:21
  How does one go about undoing an avformat_seek_file call in libavcodec? - John Allard Newest 'ffmpeg' Questions - Stack Overflow
  I have an application written around libavcodec that sometimes attempts to seek ahead in a video while performing some work. The call to avformat_seek_file can only seek to a keyframe, so sometimes I end up in a situation where it ends up seek backwards from my current position in the decoding routine causing me to have to repeat work. For example, if I'm on frame 150 and I want to seek to frame 200, but the only key frames in the file are on frames 1 and 100, this call will have me seek back to frame 100, meaning I now have to decode 100 frames to get to 200 instead o 50 frames to (...)
• 17:38
  Using NReco ConvertLiveMedia with FFMPEG - Alex Newest 'ffmpeg' Questions - Stack Overflow
  I'm working with video files in my .net application using NReco's ffmpeg wrapper. I can easily convert videos if I point the ConvertMedia to an existing file with a path, but I really want to convert the file via a stream and not a path (before even saving it). Next to the ConvertMedia method, there's also a ConvertLiveMediaTask method that accepts a stream instead of a path, but that's for streaming videos or something? It says I can create a task for live stream conversion (real-time) that reads data from stream and writes conversion result to the file, but (...)
• 16:59
  Form in Rails with ffmpeg and carrierwave - Yozuu Newest 'ffmpeg' Questions - Stack Overflow
  I would like on rails that a User without account can upload a video and then that the server modifies it with ffmpeg and that then the server deletes the video after the user downloads it. But I don't really find documentation on this subject. How can I do that ? What are the best Gem ? Thank you for your help.
• 16:36
  Pipe opencv images to ffmpeg using python - jlarsch Newest 'ffmpeg' Questions - Stack Overflow
  How can I pipe openCV images to ffmpeg (running ffmpeg as a subprocess)? (I am using spyder/anaconda) I am reading frames from a video file and do some processing on each frame. import cv2 cap = cv2.VideoCapture(self.avi_path) img = cap.read() gray = cv2.cvtColor(img[1], cv2.COLOR_BGR2GRAY) bgDiv=gray/vidMed #background division then, to pipe the processed frame to ffmpeg, I found this command in a related question: sys.stdout.write( bgDiv.tostring() ) next, I am trying to run ffmpeg as a (...)
• 14:48
  FFMPEG how to use https dynamic url as input for amovie filter - Johny Sharma Newest 'ffmpeg' Questions - Stack Overflow
  Basically what i am trying to do is to calling a dynamic php url which is generating a audio file for me and just want to use that file as an input for amovie filter. I hope you have understand my question. What i have done so far? I have a FFMPEG code which is: ffmpeg-y -i 'bg-file.mp3' -c copy -map 0:0 -map 1:0 -filter_complex "amovie='/auth.php?input=string&l=hi&f.mp3':loop=999[sc][mix];[0:a][sc]sidechaincompress=threshold=0.100:ratio=20,volume=10dB:precision=fixed[bg], [bg][mix]amix=duration=first" -c:a libmp3lame -ac 2 (...)
• 13:44
  Remove black bars from DV video using ffmpeg [closed] - AustinMaxi1750 Newest 'ffmpeg' Questions - Stack Overflow
  I have copied all my Panasonic DV videos (PAL) from the 1990s to my PC as 'dv avi' using Windows movie maker in the original quality (approx 13GB per hour of video). At the time the recordings were made I set the Panasonic camera to 16:9. However searching various forums indicates it was an illusion of 16:9 and black bars were superimposed on the 4:3 picture to give a cinematic feel. I have read also that the DV pixels are not square. As a result all my 16:9 recordings have black bars at the top and bottom when viewed on a 16:9 monitor. The file properties are as (...) -- image with black bars, image without black bars
• 12:27
  How can i do Facebook Live (page) using FFMPEG - Amjad Dader Newest 'ffmpeg' Questions - Stack Overflow
  SOLVED & EDITED - Catch: Doing live stream on Facebook with FMMPEG. In past it was easy i did many times as facebook was using rtmp. But now facebook is using RTMPS so i am getting different errors i have tried 100 commands. I have a image test.png and a audio file test.m4a (its a podcast) and facebook stream key is 1234. ( i have tried 100 types of commands so cant post here and cant post errors aswell.) so please can someone help me to go live on my facebook page with image+m4a file. i prefer centos but i will manage ubuntu if you (...)
• 11:20
  How to get video duration, dimension and size in PHP? - Chandan Newest 'ffmpeg' Questions - Stack Overflow
  I want to know how to get the duration, dimension and size of uploaded video file in PHP. The file can be in any video format.
• 10:40
  Ffmpeg concat on windows return protocol error - padavan Newest 'ffmpeg' Questions - Stack Overflow
  hi i have ffmpeg on win10. I try concat files: ffmpeg -i "concat:1.jpg|2.jpg" out.gif but always get only one\\first image in out.gif result. Late i find on manual: "This is analogous to using cat on UNIX-like systems or copy on Windows." I try ffmpeg -i "copy:1.jpg|2.jpg" out.gif and get error: copy:1.jpg|2.jpg: Protocol not found
• 10:06
  Discord bot: Fix ‘FFMPEG not found’ - Travis Sova Newest 'ffmpeg' Questions - Stack Overflow
  I want to make my Discord bot join voice chat but every time I make it I get a error into log(cmd) saying, FFMPEG not found, please help me. Picture of the error: This is the code: client.on('message', message => // Voice only works in guilds, if the message does not come from a guild, // we ignore it if (!message.guild) return; if (message.content === '/join') // Only try to join the sender's voice channel if they are in one themselves if (message.member.voiceChannel)  (...) --
• 09:13
  FFmpeg - Extracting video and audio from transport stream file (.ts) - Passepartout Newest 'ffmpeg' Questions - Stack Overflow
  I wish to extract the audio and video of a certain program in a transport stream file (.ts) by specifying its PID without losing quality and using the same codec in the resulting file (the output file is a MPEG). Is that even possible with FFmpeg? If so, how can I do it? So far, I've come to this command: ffmpeg -i tsfile.ts -vcodec copy -acodec copy -q:v 1 output.mpg Edit: Note that the file output.mpg is created. The file contains the video but the audio isn't attached (no sound). Also, I am unable to specify the program PID to (...)
• 08:24
  Convert a video from stream with ffmpeg - Alex Newest 'ffmpeg' Questions - Stack Overflow
  I'm working with video files in my .net application using NReco's ffmpeg wrapper. I can easily convert videos if I point the ConvertMedia to an existing file with a path, but I really want to convert the file via a stream and not a path (before even saving it). Next to the ConvertMedia method, there's also a ConvertLiveMediaTask method that accepts a stream instead of a path, but that's for streaming videos or something? It says I can create a task for live stream conversion (real-time) that reads data from stream and writes conversion result to the (...)
• 06:14
  RTP: dropping old packet received too late - Yves Newest 'ffmpeg' Questions - Stack Overflow
  I'm using JavaCV to process the RTSP video stream. What I've done is to grab each frame of RTSP stream and write it into a JPG file. Here is my code: package test; import org.bytedeco.javacv.FFmpegFrameGrabber; import org.bytedeco.javacv.Frame; import org.bytedeco.javacv.Java2DFrameConverter; import javax.imageio.ImageIO; import java.awt.image.BufferedImage; import java.io.File; import java.io.IOException; public class PravegaCameraConnector public static void grabberVideoFramer() Frame frame = null; int flag = (...)
• 06:07
  How to detect if a RTSP video stream is up or down - Yves Newest 'ffmpeg' Questions - Stack Overflow
  I'm using JavaCV to process the RTSP video stream. What I've done is to grab each frame of RTSP stream and write it into a JPG file. Here is my code: package test; import org.bytedeco.javacv.FFmpegFrameGrabber; import org.bytedeco.javacv.Frame; import org.bytedeco.javacv.Java2DFrameConverter; import javax.imageio.ImageIO; import java.awt.image.BufferedImage; import java.io.File; import java.io.IOException; public class PravegaCameraConnector public static void grabberVideoFramer() Frame frame = null; int flag = (...)
• 05:54
  FFmpeg - Change resolution of the video with aspect ratio - Arthur Newest 'ffmpeg' Questions - Stack Overflow
  all. How to change resolution of the video with aspect ratio with FFmpeg? There are options http://manpages.ubuntu.com/manpages/oneiric/man1/ffmpeg.1.html -s size Set frame size. The format is wxh (ffserver default = 160x128, ffmpeg default = same as source). The following abbreviations are recognized: and -aspect aspect Set the video display aspect ratio specified by aspect. aspect can be a floating point number string, or a string of the form num:den, where num and den are the numerator and (...) -- http://manpages.ubuntu.com/manpages/oneiric/man1/ffmpeg.1.html
• 04:04
  ffmpeg avformat_open_input error -14 Bad address [closed] - zhhello Newest 'ffmpeg' Questions - Stack Overflow
  As you see,I don't know why i get this error.I tried different parameters in mehtod avformat_open_input like *avformat_open_input(&ic,path,0,0)*in FFmpeg used in android ,etc,but always get the same error result. In addtional,I have make the permissions in simulator.And I don't think this problem is "file not find",cause it is error -2.Any ideas? av_register_all(); avformat_network_init(); AVFormatContext *ic = NULL; char path[] = "/sdcard/1.mp4"; //char path[] = "/sdcard/video.flv"; int re = (...)
• 03:12
  How do I toggle individual codec options in libavcodec (specifically h264_options) - John Allard Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to figure out how to enable enable_er option as is defined in h264dec.c in libavcodec. This is defined as an AVOption as part of the AVCodec.priv_class.option field. I can't figure out if this is some sort of compile-time option or if it's an option that I can enable via the av_dict_set method when initializing an AVCodec via avcodec_open2. I'm talking about these options in h264dec.c #define OFFSET(x) offsetof(H264Context, x) #define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM static const AVOption h264_options[] =  (...)
• 02:13
  Trouble automating concatination (merging) of VOB files from DVD with FFMPEG - Randy Newest 'ffmpeg' Questions - Stack Overflow
  I have a library of decrypted DVDs, which all have their video in a series of VOB files within the usual VIDEO_TS folder. I wondered if I could use FFMPEG to combine them into a single MPEG files. So first I found this (this assumes 2 VOB files) from an old non-stack exchange post, and it works... ffmpeg -i "concat:VTS_01_1.VOB|VTS_01_2.VOB" -f DVD ffmpeg complains sometimes about possible missing timestamps, but I've not seen any issues in the video, audio, or synchronization. This works too with slightly different complaints ffmpeg -i (...)

1 July

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 16:59
  libavformat/hlsenc: Remove duplicate close of the output stream. - Andrey Semashev git.videolan.org Git - ffmpeg.git/rss log
  libavformat/hlsenc: Remove duplicate close of the output stream. The result of the first close attempt is ignored and may be lost. By removing it we ensure the close result code is properly analyzed. [DH] libavformat/hlsenc.c
• 23:31
  avcodec/scpr3: Fix out of array access with dectab - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/scpr3: Fix out of array access with dectab Fixes: 23721/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SCPR_fuzzer-5914074721550336 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavcodec/scpr3.c
• 23:05
  avcodec/tiff: Do not overrun the array ends in dng_blit() - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/tiff: Do not overrun the array ends in dng_blit() Fixes: out of array access Fixes: 23589/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TIFF_fuzzer-5110559589793792.fuzz Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavcodec/tiff.c
• 21:27
  avcodec/dstdec: Replace AC overread check by sample rate check - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/dstdec: Replace AC overread check by sample rate check Real files do skip coding 0 bits at the end, thus this kind of check does not work reliable. Fixes: Ticket 8770 Fixes: dst-256fs44-6ch-refdstencoder.dff The samplerate is specified in ISO/IEC 14496-3:2005(E) as one of 3 fixed values, this also can be used to limit the duration and avoid the timeout This reverts commit f6df99dba1ae64b05d08fba8160d13eb9795042f. [DH] libavcodec/dstdec.c
• 15:51
  avformat/dump: add a \\n for end of ERROR log - Limin Wang git.videolan.org Git - ffmpeg.git/rss log
  avformat/dump: add a \\n for end of ERROR log Signed-off-by: Limin Wang <lance.lmwangⓐgmail.com> [DH] libavformat/dump.c
• 14:57
  FATE: fix colorbalance fate test failed on x86_32 - Limin Wang git.videolan.org Git - ffmpeg.git/rss log
  FATE: fix colorbalance fate test failed on x86_32 floating point precision will cause rgb*max generate different value on x86_32 and x86_64. have pass fate test on x86_32 and x86_64 by using lrintf to get the nearest integral value for rgb * max before av_clip. Reviewed-by: Paul B Mahol <onemdaⓐgmail.com> Signed-off-by: Limin Wang <lance.lmwangⓐgmail.com> [DH] libavfilter/vf_colorbalance.c [DH] tests/ref/fate/filter-colorbalance [DH] tests/ref/fate/filter-colorbalance-gbrap [DH] tests/ref/fate/filter-colorbalance-gbrap-16 [DH] (...)

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 18:15
  HTML5 video player some mp4 files not playing chrome - Marc Newest 'ffmpeg' Questions - Stack Overflow
  So I'm trying to build a personnal streaming platform and I've done my best to follow the recommandations I've found everywhere for better compatibility/quality when streaming. So I'm systematically encoding my video to video codec h264 with mp4 container with ffmpeg using this command: ffmpeg -i input -vcodec libx264 -maxrate 8000k -bufsize 1000K -minrate 10k -crf 24 -ab 192k -movflags faststart output.mp4 However, I occasionaly fall on some reluctant mp4 that will play fine on Edge and Firefox but won't on Chrome. Loading seems (...)
• 18:04
  How to make a batch file wait for all processes of another call to finish before continuing - Roman Stadler Newest 'ffmpeg' Questions - Stack Overflow
  The idea of this script is to take a (lecture) video, split it into smaller pieces, remove the silence for each one, and merge them back together, for increased performance, since the silence-removing script does not scale that well for larger videos. The 3 batch scripts below work perfectly when started manually after eachother, but when trying to launch them from a single .bat file, I can't prevent them from starting at the same time, which creates errors at the merging stage. These are the 3 batch files: split.bat startall.bat merge.bat  (...) -- Video-Remove-Silence
• 17:32
  Looking to insert a clickable image in a video with php - mudassarqureshi Newest 'ffmpeg' Questions - Stack Overflow
  Hi I am looking to insert a clickable image in a video. to make a video interactive. Basically I have a form with 3 fields upload-video, upload-photo and a URL. What I am looking for is that when the user uploads these 3 fields the image will become the part of the uploaded video and upon clicking that image it will open a URL that was added in the form. after that I have to provide the embed code of that interactive video to users. Is there any way to achieve that functionality with php? I have looked into ffmpeg but I am not sure that it will do exactly what I (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 16:09
  avcodec/nvenc: add new h264 levels from Video SDK 10 - Timo Rothenpieler git.videolan.org Git - ffmpeg.git/rss log
  avcodec/nvenc: add new h264 levels from Video SDK 10 Signed-off-by: Timo Rothenpieler <timoⓐrothenpieler.org> [DH] libavcodec/nvenc.h [DH] libavcodec/nvenc_h264.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 15:02
  FFmpeg / libmp3lame crash while converting from .wav to .mp3 with vibrato - Chitrang Newest 'ffmpeg' Questions - Stack Overflow
  I have integrated mobile-ffmpeg-full-gpl:4.3.1.LTS library in my android app. And trying to convert .wav file to .mp3 format with vibrato option and libmp3lame encoder. ffmpegCommand = "-i input.wav " + "-af vibrato=f=4 " + "-c:a libmp3lame " + "-b:a 96k " + "-ac 1 " + "-ar 44100 " + "-y output.mp3" FFmpeg Logs: a.b.com I/mobile-ffmpeg: Loading mobile-ffmpeg. a.b.com I/mobile-ffmpeg: Loaded mobile-ffmpeg-full-gpl-arm64-v8a-4.3.1-lts-20200125. a.b.com D/mobile-ffmpeg: Callback thread started. a.b.com (...) -- mobile-ffmpeg-full-gpl:4.3.1.LTS, vibrato, link1, link2
• 16:00
  FFMPEG hwaccel convert WEBM to MP4 video failed: could not find codec parameters - Yen Nguyen Newest 'ffmpeg' Questions - Stack Overflow
  I use FFMPEG to convert webm videos into mp4 format using a Nvidia GPU GeoForce GTX 1660 card on Windows 10. It has worked perfectly since the beginning for few months but now it's stopped working with strange error as below: [h264 ⓐ 0000013d8b5eee00] missing picture in access unit with size 431 [extract_extradata ⓐ 0000013d8b6aef40] No start code is found. big-buck-bunny-trailer.webm: could not find codec parameters FFMPEG version and Nvidia driver version are the same as before it just crashed overnight without a clue. I tried Googling around and did (...)
• 15:55
  capturing specific window using fluent-ffmpeg - prajwal kumar Newest 'ffmpeg' Questions - Stack Overflow
  I am using following command in command line to capture "xray 0.1" window. It works. ffmpeg -f gdigrab -framerate 30 -i title="xray 0.1" output.mkv I am trying to construct an equivalent command in nodejs using "fluent-ffmpeg" library. Following code snippet captures whole desktop. But I want only "xray 0.1" to be captured. How can I specify this in using "fluent-ffmpeg" library? var ffmpeg = require('fluent-ffmpeg'); var command = ffmpeg("desktop") .inputOptions(['-f gdigrab' (...)
• 13:40
  How to use ffmpeg lib transform mp4(h264&aac) to m3u8 (hls) by C code? - itning Newest 'ffmpeg' Questions - Stack Overflow
  I used official examples transcoding.c but console print pkt->duration = 0, maybe the hls segment duration will not precise. I use this code to set duration but invalid。 av_opt_set_int(ofmt_ctx->priv_data, "hls_time", 5, AV_OPT_SEARCH_CHILDREN); In command line ffmpeg -i a.mp4 -codec copy -vbsf h264_mp4toannexb -map 0 -f segment -segment_list a.m3u8 -segment_time 10 a-%03d.ts How to use C code to achieve this command? this is my code: /** * ⓐfile * API example for demuxing, decoding, filtering, encoding and muxing * ⓐexample (...)
• 11:30
  When I tried to install react-native-ffmpeg, Build getting failed throwing error - srinivas Newest 'ffmpeg' Questions - Stack Overflow
  Version Using compileSdkVersion 29 buildToolsVersion "26.0.0" What went wrong: Could not determine the dependencies of task ':react-native-ffmpeg:compileDebugAidl'. Could not resolve all task dependencies for configuration ':react-native-ffmpeg:debugCompileClasspath'." /> Could not find com.arthenica:mobile-ffmpeg-com.febbler:4.3.1. Required by: project :react-native-ffmpeg --
• 10:49
  Make a numpy array look like a video file - zagaroo Newest 'ffmpeg' Questions - Stack Overflow
  I am building a Python web app for visualization of video data. The video is a T x X x Y array stored as an HDF5 file and is too large to load into memory. However, I have the following libraries. Library #1 is an HDF5 reader that allows me to do random access on the video file on disk, so I can get arbitrary frames as numpy arrays. Library #2 (streamlit) is a web library that allows me to display standard video types (mp4, h264, etc.) [API link]. I am thinking that all I need to do is write an intermediate class that behaves like a BytesIO object and gets frames as they (...) -- [API link]
• 11:39
  bash - forcing globstar asterisk expansion when passed to loop - Kittywhiskers Van Gogh Newest 'ffmpeg' Questions - Stack Overflow
  I am attempting to write a script that finds the extension of all files within a directory and normalise them using ffmpeg to conform to a singular file format, codec and resolution. #!/usr/bin/env bash # We need to use globstar because we want to run this recursively (bash >4.0) # This script won't run on macOS unless you install bash from homebrew shopt -s globstar nullglob # macOS doesn't have some stuff that we need, presuming you have homebrew already # then run "brew install ffmpeg rename" if ! [ -x "$(command -v ffmpeg)" ] || ! [ -x (...) -- ShellCheck
• 12:04
  libav/ffmpeg: where is data buffer storage? - nguyenthachung Newest 'ffmpeg' Questions - Stack Overflow
  I'm using libav/ffmpeg to play some DASH livestream. My case: player is playing normally -> pause for 3 4 minutes -> play again -> Player continue to play without interrupted, not jump to realtime. Is libav/ffmpeg cached buffer or stored to somewhere?

Revisions : SPIP http://core.spip.org/projects/spip/activity

• 10:15
  Anomalie #4482: Passer définitivement Bigup sur la forge communautaire Revisions : SPIP
  Bon, ça c’est fait, enfin :) Reste que SPIP-dev en svn le télécharge pas (enfin pour le moment toujours depuis le github).

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 06:30
  FfmpegCore how can I set delay while I am joining multiple video files - Masum Ahammed Newest 'ffmpeg' Questions - Stack Overflow
  I am using https://github.com/rosenbjerg/FFMpegCore. I am splitting the videos and then I am trying to compose them by adding some images and I would like some delays when the images are shown. What is the Delay function in ffmpegCore? -- https://github.com/rosenbjerg/FFMpegCore
• 05:38
  How to get the video's duration or number of frames in ffmpeg filter - Reasno Newest 'ffmpeg' Questions - Stack Overflow
  I'm writing a filter in ffmpeg and I have to get the duration or number of frames in filter_frame function. But the parameters of "filter_frame" function only consist of AVFilterLink and AVFrame: static int filter_frame(AVFilterLink* link, AVFrame* in) AVFilterContext* avctx = link->dst; ExtractContext* privCtx = (ExtractContext*)avctx->priv; AVFilterLink* outlink = avctx->outputs[0]; //here I want to get the duration of total number of frames: I can't find attributes which is related to duration of frame numbers in either class. I have (...)
• 05:32
  How to get the duration or total number of frame in ffmpeg filter? - Reasno Newest 'ffmpeg' Questions - Stack Overflow
  I'm writing a filter in ffmpeg in which I have to get the duration of the video. The filter_frame function looks like followings: static int filter_frame(AVFilterLink* link, AVFrame* in) AVFilterContext* avctx = link->dst; ExtractContext* privCtx = (ExtractContext*)avctx->priv; AVFilterLink* outlink = avctx->outputs[0]; //here I want to get the duration or total number of frames: I have to get the duration or total number of frames in this function, but the only parameters of the function is AVFilterLink and AVFrame in which I cant find (...)

30 June

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 17:22
  avutil/timecode: add description for SMPTE binary format - Limin Wang git.videolan.org Git - ffmpeg.git/rss log
  avutil/timecode: add description for SMPTE binary format Signed-off-by: Limin Wang <lance.lmwangⓐgmail.com> [DH] libavutil/frame.h [DH] libavutil/timecode.h
• 17:18
  API: add AV_PKT_DATA_S12M_TIMECODE to AVPacketSideDataType - Limin Wang git.videolan.org Git - ffmpeg.git/rss log
  API: add AV_PKT_DATA_S12M_TIMECODE to AVPacketSideDataType Signed-off-by: Limin Wang <lance.lmwangⓐgmail.com> [DH] doc/APIchanges [DH] libavcodec/avpacket.c [DH] libavcodec/decode.c [DH] libavcodec/packet.h [DH] libavcodec/version.h [DH] libavformat/dump.c
• 07:41
  libavformat/dashenc.c: Support mpd update period - Siyuan Huang git.videolan.org Git - ffmpeg.git/rss log
  libavformat/dashenc.c: Support mpd update period According ISO 23009-1, in live cases, mpd refresh period should be configurable Signed-off-by: Siyuan Huang <saber.huangⓐsamsung.com> [DH] doc/muxers.texi [DH] libavformat/dashenc.c
• 22:01
  avcodec/apedec: Fix undefined integer overflow with 24bit - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/apedec: Fix undefined integer overflow with 24bit Fixes: signed integer overflow: 8683744 * 256 cannot be represented in type 'int' Fixes: 23527/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_APE_fuzzer-5679885932822528 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavcodec/apedec.c
• 21:11
  avcodec/loco: Fix integer overflow with large values from loco_get_rice() - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/loco: Fix integer overflow with large values from loco_get_rice() Fixes: signed integer overflow: 155 + 2147483647 cannot be represented in type 'int' Fixes: 23421/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_LOCO_fuzzer-5652849097965568 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavcodec/loco.c
• 21:32
  avcodec/hcadec: Check total_band_count against imdct_in size - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/hcadec: Check total_band_count against imdct_in size Fixes: index 128 out of bounds for type 'float [128]' Fixes: 23465/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HCA_fuzzer-5089866596745216 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavcodec/hcadec.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 23:24
  JavaFX media issue on Ubuntu : Could not create player - parsa2820 Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to play mp3 file on JavaFX-11.0.2 on Ubuntu-20.04 using JDK-13.0.2 but I keep getting this same error every time. While I was searching for that I found that JavaFX uses older version of some libraries(See this issue on github). So I compiled and installed ffmpeg-3.1.11 from source. But the same exception is thrown. I put my code and error message bellow. I stuck on this for days so I really appreciate any help. Thanks. note : This is not duplicate qeustion. All other questions regarding to this error happend on different versions and had different causes. I tried most of (...) -- See this issue on github
• 22:40
  ffmpeg live stream to Youtube command line - brainoverflowse Newest 'ffmpeg' Questions - Stack Overflow
  Would anyone assist myself with creating the correct ffmpeg command line for an audio and video rtsp camera feed that is 1440 and scale it to 1080 with a max bitrate of 10000?
• 22:29
  Server requirements ffmpeg for insert text a small video - Alpay Deniz Karakurt Newest 'ffmpeg' Questions - Stack Overflow
  I will use ffmpeg to write a username and add a picture to a 30 second video. 618 users will benefit from this service per day. How do you think a server needs? Thank you for your help
• 21:50
  How to build ffmpeg.js via provided Unix code in Cygwin? - rusty grad Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to build ffmpeg.js and add it to my program in windows. Docker does not work on my version of windows. The creator provided how to build it in Unix on his github page as follows: sudo apt-get update sudo apt-get install -y git python build-essential automake libtool pkg-config cd ~ git clone https://github.com/emscripten-core/emsdk.git && cd emsdk ./emsdk install latest ./emsdk activate latest source emsdk_env.sh cd ~ git clone https://github.com/Kagami/ffmpeg.js.git --recurse-submodules && cd ffmpeg.js make How (...) -- his github page
• 21:00
  How to stream RTSP url as HLS stream in browser - Rajan Sharma Newest 'ffmpeg' Questions - Stack Overflow
  I have multiple IP cameras and for each camera, I have an RTSP source URL (for live feed) rtsp://admin:475ⓐ13.157.195.127:664/Streaming/Channel/100021?transportmode=unicast&profile=Profile_100021 I want to convert this RTSP stream to the HLS stream (to display it on the web). I googled regarding this and got a few libraries gstreamer and ffmpeg but I am not able to find a clear way to do this. How can I achieve this? Are there any better open-source libraries or cloud services available for this (...)
• 20:41
  Streaming raw sound with FFMPEG - Dr_Click Newest 'ffmpeg' Questions - Stack Overflow
  I'm using the ffmpeg library to decode / encode audio in JAVA, using the Process objets. The aim is to got the raw datas decoded by ffmpeg in my JAVA code and then, to send them back to ffmpeg to generate a stream or create a file. As JAVA sounds only allow wav audio datas, I made a first try with this command line : ffmpeg -i http://199.180.75.118:80 -acodec pcm_s16le -ar 44100 -ac 2 "/home/dr_click/montest.wav" It works. But, my goal is to get the frames on the fly and not a file. I thought about using a pipe but it seems it will work only with (...)
• 19:42
  Using FFMPEG , Can I extract subtitles from any type of container? - Reshma Walhekar Newest 'ffmpeg' Questions - Stack Overflow
  I have tried extracting subtitles from MKV , I would like to know can I extract it from any Container like MP4 or any other video file container.
• 18:35
  Extract closed captions VTT from stream using ffmpeg - EK0 Newest 'ffmpeg' Questions - Stack Overflow
  I can extract closed caption information from an mp4 file using ffmpeg v. 3.4.7 thus: ffmpeg -f lavfi -i movie="sample.mp4[out+subcc]" -map 0:1 -c:s webvtt /tmp/output.vtt The file was obtained by capturing a live HLS stream containing closed captions. I would like to extract the closed captions directly from the stream, instead after storing the video in a file. I've tried various things, including: ffmpeg -f lavfi -i movie="http://example.com/stream.m3u8[out+subcc]" -map 0:0 -c:s webvtt /tmp/output.vtt But the movie filter does not recognize (...) -- ffmpeg filter documentation

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 19:03
  avcodec/nvenc: rename tc option to something more unique - Timo Rothenpieler git.videolan.org Git - ffmpeg.git/rss log
  avcodec/nvenc: rename tc option to something more unique Signed-off-by: Timo Rothenpieler <timoⓐrothenpieler.org> [DH] libavcodec/nvenc.c [DH] libavcodec/nvenc.h [DH] libavcodec/nvenc_hevc.c [DH] libavcodec/version.h

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 16:23
  Use debug log from ffmpeg mpdecimate to remove frames of another input file - Preexo Newest 'ffmpeg' Questions - Stack Overflow
  I have a security cam footage, which I'd like to remove all frames from which are don't contain any change. I followed the question and answer on Remove sequentially duplicate frames when using FFmpeg But my footage has a timestamp as part of the picture, so even if the image itself doesn't change, the timestamp still changes every second. My idea to ignore the timestamp for the mpdecimate option on ffmpeg: The original file is called security_footage.mp4 Crop the timestamp away, using IMovie, creates file: security_footage_cropped.mp4 Run ffmpeg (...)
• 16:19
  Audio fade in and looping - BIOStheZerg Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to put some background music to a video with a person speaking. The background music should face in over a few seconds. The music is a short snippet, which loops really well. I tried to loop it via ffmpeg so that I have everything in one command: ffmpeg -i video_file.mp4 -f lavfi -i amovie=audio_file.wav:loop=0 -filter_complex '[0:a] volume=2.0 [voice]; [1:a] afade=in:st=0:d=5, volume=0.1 [soundtrack]; [voice][soundtrack] amix=inputs=2:duration=shortest' -codec:v copy out_file.mp4 (this is a simplified version, the real one has a side chain compress (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 14:13
  avformat/dump: Use const where appropriate - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avformat/dump: Use const where appropriate Also switch to using a pointer to access stream side data instead of copying the stream's AVPacketSideData. Reviewed-by: Limin Wang <lance.lmwangⓐgmail.com> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐgmail.com> [DH] libavformat/dump.c
• 14:26
  avformat/dump: Use intermediate pointer for access to programs array - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avformat/dump: Use intermediate pointer for access to programs array Improves readability. Reviewed-by: Limin Wang <lance.lmwangⓐgmail.com> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐgmail.com> [DH] libavformat/dump.c

Newest 'libx264' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/libx264

• 15:57
  webm to mp4 conversion using ffmpeg - Pavan K Newest 'libx264' Questions - Stack Overflow
  When I try to convert a webm file to mp4 the output is very very choppy and it appears as if many frames have been dropped by ffmpeg I used the following commands to convert ffmpeg -i movie.webm movie.mp4 ffmpeg -i movie.webm -vcodec libx264 movie.mp4 ffmpeg -i movie.webm -vcodec libx264 -qscale 0 movie.mp4 All of them have the same problem. When I use ffprobe it seems to show the frames more or less properly. UPDATE: built on Jun 14 2013 14:31:50 with gcc 4.7 (Ubuntu/Linaro 4.7.2-2ubuntu1) configuration: (...)

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 15:16
  Mute specified sections of an audio file using ffmpeg - kimadactyl Newest 'ffmpeg' Questions - Stack Overflow
  I have a JSON file containing regions that I want to mute in a given audio file. How can I process the audio file to mute the file between the listed sections?
• 15:02
  How can i combine 4 ffmpeg commands and run it in the background - Js doee Newest 'ffmpeg' Questions - Stack Overflow
  i am building a web app, i want to first convert the uploaded video to mp4 then add a picture watermark to the video then i want to add text watermark to the video and finally it will get the thumbnail of the video, i have 4 ffmpeg commands that does that but it takes time to complete, i want to know if i can combine the 4 ffmpeg commands and run it in the background, Here is the 4 ffmpeg command $cmd1 = "$ffmpeg -i $file_name -qscale 0 $new_file"; $cmd2 = "$ffmpeg -i $new_file -i watermark.jpg -filter_complex overlay=W-w-5:H-h-15 $Wfile"; $cmd3 = "$ffmpeg -i (...)
• 14:42
  Generate Multiple Thumbnails from Multiple Videos (with FFmpeg) - netsonicyxf Newest 'ffmpeg' Questions - Stack Overflow
  I have multiple videos in different locations, something like: D:\\Folder 1\\001.ts E:\\Folder 2\\abc.avi F:\\Foder X\\视频.mp4 (some videos name are in non-English languages) And I already have a filelist.txt with these file path in it file 'D:\\Folder 1\\001.ts' file 'E:\\Folder 2\\abc.avi' file 'F:\\Foder X\\视频.mp4' For each video, I want to generate 3 images, starting from 00:00:10, then next image every 10 sec. The name of the image should be the name of the video + number staring from 1, (...)
• 14:41
  Adding codecs for ffm ffmpeg handling - alanionita Newest 'ffmpeg' Questions - Stack Overflow
  Whenever I start an ffserver with an ffm feed I get the following error [ffm ⓐ 0x7fc81318b160]Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead. How can I define which codecs are used by ffmpeg?

Revisions : SPIP http://core.spip.org/projects/spip/activity

• 14:46
  Anomalie #4513: Undefined au post d'un message de forum public Revisions : SPIP
  Oups, en disant que c'est du code : + $traitement = str_replace(', $connect, $Pile[0]', '', $traitement); eval("\\$v = $traitement;");
• 14:45
  Anomalie #4513 (Nouveau): Undefined au post d'un message de forum public Revisions : SPIP
  Bonjour, Il y a 2 undefined quand on post un message dans un forum modéré a posteriori (SPIP 3.3 + Facteur, sans autres plugins) ( ! ) Notice: Undefined variable: connect in \\plugins-dist\\forum\\inc\\email_notification_forum.php(83) : eval()'d code on line 1 Call Stack Time Memory Function Location 1 0.0005 419488 main( ) ...\\spip.php:0 2 0.0578 516400 include( '\\ecrire\\public.php' ) ...\\spip.php:20 3 0.0707 525840 traiter_formulaires_dynamiques( ) ...\\public.php:105 4 0.1532 699600 formulaires_forum_traiter_dist( ) ...\\aiguiller.php:245 5 0.1541 699856 inc_forum_insert_dist( ) (...)

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 13:23
  dowload video with csv file using youtube-dl and ffmpeg but ffmpeg not working - Rupendra Singh Rathore Newest 'ffmpeg' Questions - Stack Overflow
  def start(self, newfile=None, part=None): ydl_opts = with youtube_dl.YoutubeDL(ydl_opts) as ydl: while True: videos = self.get_videos() print(' videos to go'.format(len(videos))) # print no. of video remaining video = get_first_item(videos) # get next video for downloading print(video) if video is None: # check if video is there or not break c = f'ffmpeg $(youtube - dl - g ydl.download([video]) | sed "s/.*/-ss 00:05 -i &/") - t 1: 00 - c copy out.mkv' videos.remove(video) # remove video from (...)
• 13:21
  How can i generate qcelp - mohammad noroz Newest 'ffmpeg' Questions - Stack Overflow
  For a project needs to generate rtp pcap with codec qcelp. ffmpeg only can decode it but for send with rtp ffmpeg need encode with qcelp I think software simulation in telecommunication use this codec Do you know how can I generate qcelp traffic with sip sdp?
• 12:39
  Shows improper/corrupted TS segments from Opencv webcam and FFmpeg - playmaker420 Newest 'ffmpeg' Questions - Stack Overflow
  Im experimenting with opencv and ffmpeg to create a live hls stream from the webcam using some scripts The ffmpeg version i use is 3.4 frame-detection.py import numpy as np import cv2 import sys cap = cv2.VideoCapture(0) while(True): # Capture frame-by-frame ret, frame = cap.read() framestring = frame.tostring() sys.stdout.write(str(framestring)) # Display the resulting frame cv2.imshow('frame', frame) if cv2.waitKey(1) & 0xFF == ord('q'): break # When everything (...) --
• 12:25
  ffmpeg : av_read_frame don't return data and i can't convert picture with sws_scale - Hugo Charasss Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to decode a h264 video stream with ffmpeg and I have a problem when using av_read_frame. No data is put in packet->data. spy on packet I want to convert pic in YUV to RGB with sws_scale but when i call it i have an error : bad src image pointers if someone can explain the problem thx for reading here my code : AVFormatContext* input_ctx = NULL; AVStream* video_st = NULL; AVCodecContext* decoder_ctx = NULL; AVCodec* decoder; AVPacket pkt = 0 ; AVFrame* pFrameRGB = NULL; AVFrame* sw_frame = NULL; DWORD dwWidth = (...) -- spy on packet
• 11:39
  ffmpeg need to run this command for 360 times - Dévèñdræ Rághùwáñhsí Newest 'ffmpeg' Questions - Stack Overflow
  FFmpeg need to run this command for 360 times but it fails after 200 or any optimization for this command. for (int i = 0; i
• 11:36
  Output filename extension in fswatch and ffmpeg - rr09 Newest 'ffmpeg' Questions - Stack Overflow
  I'm having issue with the file-naming extension output. My input is JPG files that needs to convert to MP4 using FFMPEG. However, when I run the code below it output as img1.jpg.mp4 including the input file extension instead of just img1.mp4. fswatch -e ".*" -i "\\\\.jpg$" . |xargs -n1 basename|xargs -n1 -t -I sh -c 'pwd; && ffmpeg -y -loop 1 -i "" -vf "fade=t=in:st=0:d=1,fade=t=out:st=2:d=1" -preset "ultrafast" -c:v libx264 -t 3 -pix_fmt yuv420p ".mp4"' Any help is much appreciated. Running on MAC, SH/BASH EDITED: BTW I also tried a loop (...)
• 09:34
  FFmpeg YouTube live streaming automatically stopped after some time (6- 9 min) RTMP node js - Avneesh Singh Newest 'ffmpeg' Questions - Stack Overflow
  I am developing a feature where I am capturing the desktop screen and live streaming on YouTube by using the FFmpeg module. The streaming is working fine but the problem is it stopped automatically after some time like 6-9 min and YouTube is showing "no data" receiving. Below I attached the code. const process = spawn(pathToFfmpeg,["-probesize", "10M", "-f", "gdigrab", "-i", "desktop", "-framerate", "30", "-f", "dshow", "-i", "audio= Microphone (2 - USB audio device)", "-filter_complex", "amix=inputs=1", "-preset", "fast", "-g", "60", "-tune", "zerolatency", "-c:v", "libx264", (...)
• 08:12
  live stream RTSP to html all browsers - jimmy Newest 'ffmpeg' Questions - Stack Overflow
  I have a situation and cant find an answer online maybe you could help me. I am trying to stream an rtsp stream to HTML basically, I converted the stream to his/m3u8 local dir using ffmpeg, my problem is displaying the hls to my web page and get it to work on the main browsers like chrome ,Firefox etc. the only way i got it to work is by using python command "python -m http.server" to my local dir(where the hls stream was saved) and it works on I.E browser. and all i did needs to be done on the back end (asp.net app). i did not write lot of (...) -- https://github.com/video-dev/hls.js/blob/master/demo/basic-usage.html, http://localhost:8000/stream/video.m3u8
• 08:04
  Sequelize FFMPEG get video after upload on NodeJs - jjplack Newest 'ffmpeg' Questions - Stack Overflow
  Hello After upload a video to db using sequelize, i would like to edit it using FFMPEG So to get the video is just point the model attribute to FFMPEG? Because using the file path is not editing the video. For exemple: fastify.route( method: "POST", url: "/posts", preHandler: upload.single("video"), handler: async function(request, reply) const Post = fastify.sequelize; const videoPath = "./public/uploads/"; const post = await Post.create( video: request.file.path, title: (...)
• 05:48
  How can I generate a multiple period DASH manifest with ffmpeg? - Robert Simmons Jr. Newest 'ffmpeg' Questions - Stack Overflow
  I am looking to encode a file and generate multiple periods rather than just one period. When I try to run ffmpeg with the below command, the result is a single period with multiple adaptation sets so clearly that is the wrong approach. I had thought by breaking the files by time this might work but apparently not. Any advice would be appreciated: ffmpeg -i ~/Downloads/turkish-horses.mp4 \\ -map 0:v:0 -b:v:1 1000k -ss 0 -t 5 -c:v:1 libx264 -filter:v:1 "scale=640:-1" \\ -map 0:v:0 -b:v:2 1000k -ss 5 -c:v:2 libx264 -filter:v:2 "scale=640:-1" \\ -map 0:v:0 -b:v:3 3000k -ss 0 (...)
• 05:31
  How can I record a window using ffmpeg by id? - henrique vital Newest 'ffmpeg' Questions - Stack Overflow
  I want to get the id of the window by name using c++ or qml and record the specific screen using this id in ffmpeg. ffmpeg -f x11grab -wid 0x6200012 -s 1920x1052 -r 30 -i :0.0+0,0 How can I do this? it's not necessary to be the id, can be the offset-x and offset-y, I just want to record the window in any position.
• 05:09
  Catching dropped FFMPEG frames in iOS? - jbeu425 Newest 'ffmpeg' Questions - Stack Overflow
  I'm developing an iOS app which streams RTSP over a WiFi connection. I need to be able to inform the user if the connection is not good, and I'd like to know if there is some way to catch dropped FFMPEG frames in some way? My frames are decoded using the method below, is there somewhere here I can tap into to catch an issue with the frame being decoded? There is currently an NSLog which says "decode video error!" about half way down this method, but running network link conditioner set to "very poor network" never reaches this line even though the stream is very (...)

29 June

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 16:54
  dnn-layer-math-unary-test: add unit test for atanh - Ting Fu git.videolan.org Git - ffmpeg.git/rss log
  dnn-layer-math-unary-test: add unit test for atanh Signed-off-by: Ting Fu <ting.fuⓐintel.com> [DH] tests/dnn/dnn-layer-mathunary-test.c
• 16:54
  dnn_backend_native_layer_mathunary: add atanh support - Ting Fu git.videolan.org Git - ffmpeg.git/rss log
  dnn_backend_native_layer_mathunary: add atanh support It can be tested with the model generated with below python script: import tensorflow as tf import numpy as np import imageio in_img = imageio.imread('input.jpeg') in_img = in_img.astype(np.float32)/255.0 in_data = in_img[np.newaxis, :] x = tf.placeholder(tf.float32, shape=[1, None, None, 3], name='dnn_in') please uncomment the part you want to test x_sinh_1 = tf.sinh(x) x_out = tf.divide(x_sinh_1, 1.176) # sinh(1.0) x_cosh_1 = tf.cosh(x) x_out = tf.divide(x_cosh_1, 1.55) # cosh(1.0) x_tanh_1 = tf.tanh(x) x__out = (...)
• 16:54
  dnn-layer-math-unary-test: add unit test for acosh - Ting Fu git.videolan.org Git - ffmpeg.git/rss log
  dnn-layer-math-unary-test: add unit test for acosh Signed-off-by: Ting Fu <ting.fuⓐintel.com> [DH] tests/dnn/dnn-layer-mathunary-test.c
• 16:54
  dnn_backend_native_layer_mathunary: add acosh support - Ting Fu git.videolan.org Git - ffmpeg.git/rss log
  dnn_backend_native_layer_mathunary: add acosh support Signed-off-by: Ting Fu <ting.fuⓐintel.com> [DH] libavfilter/dnn/dnn_backend_native_layer_mathunary.c [DH] libavfilter/dnn/dnn_backend_native_layer_mathunary.h [DH] tools/python/convert_from_tensorflow.py [DH] tools/python/convert_header.py
• 16:54
  dnn-layer-math-unary-test: add unit test for asinh - Ting Fu git.videolan.org Git - ffmpeg.git/rss log
  dnn-layer-math-unary-test: add unit test for asinh Signed-off-by: Ting Fu <ting.fuⓐintel.com> [DH] tests/dnn/dnn-layer-mathunary-test.c
• 16:54
  dnn_backend_native_layer_mathunary: add asinh support - Ting Fu git.videolan.org Git - ffmpeg.git/rss log
  dnn_backend_native_layer_mathunary: add asinh support Signed-off-by: Ting Fu <ting.fuⓐintel.com> [DH] libavfilter/dnn/dnn_backend_native_layer_mathunary.c [DH] libavfilter/dnn/dnn_backend_native_layer_mathunary.h [DH] tools/python/convert_from_tensorflow.py [DH] tools/python/convert_header.py
• 16:54
  dnn-layer-math-unary-test: add unit test for tanh - Ting Fu git.videolan.org Git - ffmpeg.git/rss log
  dnn-layer-math-unary-test: add unit test for tanh Signed-off-by: Ting Fu <ting.fuⓐintel.com> [DH] tests/dnn/dnn-layer-mathunary-test.c
• 16:54
  dnn_backend_native_layer_mathunary: add tanh support - Ting Fu git.videolan.org Git - ffmpeg.git/rss log
  dnn_backend_native_layer_mathunary: add tanh support Signed-off-by: Ting Fu <ting.fuⓐintel.com> [DH] libavfilter/dnn/dnn_backend_native_layer_mathunary.c [DH] libavfilter/dnn/dnn_backend_native_layer_mathunary.h [DH] tools/python/convert_from_tensorflow.py [DH] tools/python/convert_header.py
• 16:54
  dnn-layer-math-unary-test: add unit test for cosh - Ting Fu git.videolan.org Git - ffmpeg.git/rss log
  dnn-layer-math-unary-test: add unit test for cosh Signed-off-by: Ting Fu <ting.fuⓐintel.com> [DH] tests/dnn/dnn-layer-mathunary-test.c
• 16:54
  dnn_backend_native_layer_mathunary: add cosh support - Ting Fu git.videolan.org Git - ffmpeg.git/rss log
  dnn_backend_native_layer_mathunary: add cosh support Signed-off-by: Ting Fu <ting.fuⓐintel.com> [DH] libavfilter/dnn/dnn_backend_native_layer_mathunary.c [DH] libavfilter/dnn/dnn_backend_native_layer_mathunary.h [DH] tools/python/convert_from_tensorflow.py [DH] tools/python/convert_header.py
• 16:54
  dnn-layer-math-unary-test: add unit test for sinh - Ting Fu git.videolan.org Git - ffmpeg.git/rss log
  dnn-layer-math-unary-test: add unit test for sinh Signed-off-by: Ting Fu <ting.fuⓐintel.com> [DH] tests/dnn/dnn-layer-mathunary-test.c
• 16:54
  dnn_backend_native_layer_mathunary: add sinh support - Ting Fu git.videolan.org Git - ffmpeg.git/rss log
  dnn_backend_native_layer_mathunary: add sinh support Signed-off-by: Ting Fu <ting.fuⓐintel.com> [DH] libavfilter/dnn/dnn_backend_native_layer_mathunary.c [DH] libavfilter/dnn/dnn_backend_native_layer_mathunary.h [DH] tools/python/convert_from_tensorflow.py [DH] tools/python/convert_header.py
• 17:21
  avcodec/dvdsub_parser: Remove empty init function - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avcodec/dvdsub_parser: Remove empty init function Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐgmail.com> [DH] libavcodec/dvdsub_parser.c
• 17:11
  avcodec/dvbsub_parser: Don't allocate buffer separately - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avcodec/dvbsub_parser: Don't allocate buffer separately Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐgmail.com> [DH] libavcodec/dvbsub_parser.c
• 18:58
  configure: remove libvmaf from EXTERNAL_LIBRARY_VERSION3_LIST - Kyle Swanson git.videolan.org Git - ffmpeg.git/rss log
  configure: remove libvmaf from EXTERNAL_LIBRARY_VERSION3_LIST since libvmaf v1.5.1, libvmaf has been relicensed as BSD+Patent Signed-off-by: Kyle Swanson <kⓐylo.ph> [DH] configure [DH] doc/filters.texi
• 19:49
  avformat/hls: Pass a copy of the URL for probing - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  avformat/hls: Pass a copy of the URL for probing The segments / url can be modified by the io read when reloading This may be an alternative or additional fix for Ticket8673 as a further alternative the reload stuff could be disabled during probing Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavformat/hls.c
• 19:59
  libavcodec/jpeg2000.c: Precinct size check removed - Gautam Ramakrishnan git.videolan.org Git - ffmpeg.git/rss log
  libavcodec/jpeg2000.c: Precinct size check removed This patch removes a check which throws an error if the log2 precinct width/height is 0. The standard allows the first component to have 0 as the log2 width/height. However, to ensure proper intialization of coding style, an extra check has been added. Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavcodec/jpeg2000.c [DH] libavcodec/jpeg2000.h [DH] libavcodec/jpeg2000dec.c

Revisions : Pages (SPIP) http://zone.spip.org/trac/spip-zone/log/_plugins_/pages

• 16:34
  Revision 125335: eviter une fatale si charger() a renvoye une erreur sous forme de string - Cerdic Revisions : Pages (SPIP)
  eviter une fatale si charger() a renvoye une erreur sous forme de string -- Log

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 23:54
  Non-monotonous DTS in output stream 0:1 even if I re-encode them before concat - Tigran Tokmajyan Newest 'ffmpeg' Questions - Stack Overflow
  I'm having an issue with FFMPEG after I try to concat 2 video/audio. Prior to concatenation, I do re-encode them identically. But it turns out I'm still having problems with timebases. Here is what I do. I loop an image in the background for the audio file and re-encode. Like this ffmpeg -y -loop 1 -r 30 -i profile-pic.png -i my-audio.mp4 -shortest -vsync 2 -video_track_timescale 600 -c:v libx264 -crf 23 -pix_fmt yuv420p -r 30 -c:a aac processed-audio.mp4 I add an intro for video file and re-encode, like (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 17:48
  fate: Update fate refs after cca982ee018aad54214e94f2a0a5921c8bbf1328 - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  fate: Update fate refs after cca982ee018aad54214e94f2a0a5921c8bbf1328 Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐgmail.com> [DH] tests/ref/fate/filter-colorbalance [DH] tests/ref/fate/filter-colorbalance-gbrap [DH] tests/ref/fate/filter-colorbalance-gbrap-16 [DH] tests/ref/fate/filter-colorbalance-rgba64

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 21:42
  How can i use ffmpeg to add voice note to another mp3 at specific time , let everything play without reducing the original mp3 - Adike maduabuchi Newest 'ffmpeg' Questions - Stack Overflow
  I have used some code which does not give me what I want, I used PHP shell to execute the code $var = 'ffmpeg -y -i ' . $voice_note_tag . ' -i ' . $original_music_path . ' -filter_complex "[0]asplit[a][b]; [a]atrim=duration=' . $time_come_vioce . ',volume=\\'1-max(0*(t-1),0)\\':eval=frame[pre]; [b]atrim=start=' . $time_come_vioce . ',asetpts=PTS-STARTPTS[song]; [song][1]amix=inputs=2:duration=first:dropout_transition=2[post]; [pre][post]concat=n=2:v=0:a=1[mixed]" -map "[mixed]" ' . $output . ' 2>&1';  (...)
• 20:46
  Requested MovieWriter (ffmpeg) not available even when I installed it - EXODIA Newest 'ffmpeg' Questions - Stack Overflow
  I am running this command. import bar_chart_race as bcr bcr.bar_chart_race(df=covid_df,filename=None,figsize=(3.5,3),title='Covid-19 Cases by State',n_bars=10) Getting the below error Exception: You do not have ffmpeg installed on your machine. Download ffmpeg from here: https://www.ffmpeg.org/download.html. Matplotlib's original error message below: Requested MovieWriter (ffmpeg) not available Have already installed the module D:\\py\\Scripts>pip install ffmpeg-python Requirement already satisfied: (...)
• 19:25
  how to encode a video file to x265 10bit main10 profile in ffmpeg - Kirito Newest 'ffmpeg' Questions - Stack Overflow
  I'm currently trying to encode a video file with ffmpeg -i input.mkv libx265 crf=28 -x265-params profile=main10 out.mkv but i am getting the output file is in 8 bit?
• 19:18
  FFMPEG nb_frames vs nb_read_frames - Alex Willcox Newest 'ffmpeg' Questions - Stack Overflow
  I have videos captured at 200fps and I'm trying to label each frame with it's frame number. However, looking at the original videos with the following command: ffprobe.exe -i YR7-020320-B1-2.avi -print_format json -loglevel fatal -show_streams -count_frames -select_streams v and I get the following output: "streams": [ "index": 0, "codec_name": "dvvideo", "codec_long_name": "DV (Digital Video)", "codec_type": "video", "codec_time_base": "1001/30000", "codec_tag_string": "dvsd", "codec_tag": "0x64737664",  (...)
• 18:41
  How to reduce quality of multiple JPEG image files using ffmpeg? - Jorge Anzola Newest 'ffmpeg' Questions - Stack Overflow
  I want to reduce the quality of a bunch of images at the time. With -q:v x where x is a number between 1 and 30 (the bigger the number, the worse the quality). I'm able to save a lot of space even with x=1. Now, when it comes to process multiple files, I'm stuck. I've tried these two batch files: mkdir processed for f in *.jpg; do name=`echo $i | cut -d'.' -f1`; echo $name; ffmpeg -i $i -q:v 1 processed/$name.jpg; done And mkdir processed for f in *.jpg; do ffmpeg -i "$f" -q:v 1 (...)
• 18:38
  Updating app uses FFMpeg version used in older version of app - Android Developer Newest 'ffmpeg' Questions - Stack Overflow
  I was using FFMpeg old version in my app and now i updated my app to new FFMpeg version.But when i update my old app version to new app version it still seems to use old version of FFMpeg until i uninstall old app version and then install new app version.I tried programmatically delete cache data in my new version of app using below code but with that also I face problem in some devices which still uses old FFMpeg version- private void clearData() try PackageInfo pInfo = getPackageManager().getPackageInfo(getPackageName(), 0); int mCurrentVersion = (...)
• 14:19
  Struggling to add frame number to each frame of a video - Alex Willcox Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to add frame number to each frame of a video using the code below. It's working, as in it's labelling the frames but it's dropping frames when doing so. For some reason, it's coding at 30fps, rather than the 200fps that I would like. Does anyone know how to solve this? Thanks! ffmpeg -i YR7-020320-B1-2.avi -vf "drawtext=fontfile=/usr/share/fonts/truetype/DroidSans.ttf: timecode='00\\:00\\:00\\:00': r=200: \\ x=(w-tw)/2: y=h-(2*lh): fontcolor=white: box=1: boxcolor=0x00000000ⓐ1" -an -y (...)
• 14:06
  How can i mux H264 stream into MP4 file via libavformat - Brian Newest 'ffmpeg' Questions - Stack Overflow
  I want to realize an application that firstly decode a multi-media file(such as test.mp4 file, video codec id is H264), get a video stream and an audio stream, then make some different in the audio stream, at last encode the video stream(use libx264) and audio stream into a result file(result.mp4). To promote the efficiency, i omitted the decode and encode of video stream, i get the video packet via function "av_read_frame", then output it directly into the result file via function "av_write_frame". But there is no picture in the output file, and the size of output file is fairly (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 14:50
  avfilter/vf_colorbalance: remove wrong addition - Paul B Mahol git.videolan.org Git - ffmpeg.git/rss log
  avfilter/vf_colorbalance: remove wrong addition [DH] libavfilter/vf_colorbalance.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 07:52
  Recursive ffmpeg script preserving the subfolder structure [closed] - Sbr Newest 'ffmpeg' Questions - Stack Overflow
  I've +300 videos in old format (.VOB) and I want to convert it in mp4. Luckly, after some documentation, I've managed to convert a couple of them, but I need to make it automatic. Don't know how, even which language should I use (python, batch...) The thing is I want to preserve the subfolder structure. For example, if video 1 is inside folder B which is also inside folder A, the output must be in a folder named "output", and inside the converted video must be inside folder B and folder A The ffmpeg command, if necessary: ffmpeg -i input.vob -vf yadif=1 (...)
• 10:54
  How to get Highest possible bit rate and dimensions of a video? - chawila Newest 'ffmpeg' Questions - Stack Overflow
  I am using a package called pascalbaljetmedia/laravel-ffmpeg And want to create an HLS playlist for video streaming. but first i want to check the video bit-rate or width/height to see if it's a 4k, 1080, 720 etc. So how do i calculate the video bitrate and it's dimensions?.. Here is what i want to do after getting the video information: $video = FFMpeg::fromDisk('videos') ->open('original_video.mp4') ->exportForHLS(); $resolutions = []; //check if we can make 4k version if ( ( $bitrate >= 14000 ) (...)
• 10:48
  ffmpeg: RTP missed many packets - Yves Newest 'ffmpeg' Questions - Stack Overflow
  I have an mp4 file named test.mp4, and I'm using VLC player as an RTSP server to convert the file test.mp4 to the RTSP stream and send it to the client. Here is how I configure my VLC to become a RTSP server: https://www.youtube.com/watch?v=kfCKSIrIGlY Then I login remotely my Linux machine, which is the client to receive the RTSP stream. To do so, I execute the below command on my Linux machine: ffmpeg -i rtsp://192.168.120.157:5544/stream -c copy -f segment -segment_time 100 out_%d.mp4 After executing the command, I got two mp4 files. It seems that (...) -- https://www.youtube.com/watch?v=kfCKSIrIGlY
• 10:14
  ENOENT error when trying to access output with ffmpeg + node.js - John Grayson Newest 'ffmpeg' Questions - Stack Overflow
  I am running ffmpeg in a lambda function to do some video processing. My problem is the processed video is not being outputted/saved. Therefore, when I try to access the processed video, I get the error: ERROR Error retrieving video to upload [Error: ENOENT: no such file or directory Relevant parts of my code: const spawnSync = require("child_process"); exports.handler = async (event, context) => spawnSync( "/opt/ffmpeg/ffmpeg", [ "-i", `/tmp/myfile`, 'title="Test 123"', `/tmp/processed_file`, ], stdio: (...)

Revisions : SPIP http://core.spip.org/projects/spip/activity

• 10:30
  Anomalie #4483: Masquer le bouton Télécharger si Bigup est bien actif - RastaPopoulos ♥ Revisions : SPIP
  parce que quoi ? ya pas le bouton ?
• 09:49
  Anomalie #4483: Masquer le bouton Télécharger si Bigup est bien actif Revisions : SPIP
  Et maintenant que https://git.spip.net/spip/bigup est l'original et non plus le miroir de github, je ne peut toujours pas faire la PR dessus.

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 08:50
  Fluent-ffmpeg and Multer Cut video lenght on Upload - jjplack Newest 'ffmpeg' Questions - Stack Overflow
  After setup a simple upload file with Multer, I would like to cut the length and take a screenshot of the video after upload it. The upload works fine but the FFMPEG did cut the video length. First I follow the doc added the cut on setStartTime and setDuration. .setStartTime("00:00:00") .setDuration("00:01:00") The video still uploaded with full length and then I tried the addInputOption and outputOptions .addInputOption("-ss 00:00:00 -t 00:01:00") .outputOptions([ "-ss 00:00:00 -t 00:01:00", "-c:v libx264", "-r 30", "-pix_fmt (...)
• 07:40
  ffmpeg motion sensing to invoke link - anthos Newest 'ffmpeg' Questions - Stack Overflow
  ffmpeg -rtsp_transport tcp -i rtsp:///h264/m.amp -vf select='gte(scene\\,0.05)',metadata=print -an -f null - The command above produce output below when a mition is detected. [Parsed_metadata_1 ⓐ 000002896a401700] frame:0 pts:595321 pts_time:6.61468 [Parsed_metadata_1 ⓐ 000002896a401700] lavfi.scene_score=0.052305 [Parsed_metadata_1 ⓐ 000002896a401700] frame:1 pts:1022151 pts_time:11.3572 [Parsed_metadata_1 ⓐ 000002896a401700] lavfi.scene_score=0.131147 Is there anyway I can have a curl / wget triggered, at same time, to open a link (...)
• 07:06
  View MPEG-TS stream in browser - alexenv Newest 'ffmpeg' Questions - Stack Overflow
  I want to create a webpage with a video player that can play a H264 mpeg-ts live stream. I can't find any web player that can do that. I read that JWPlayer is capable of doing that, but only in the paid version. The stream can be played in VLC and any other players. What can I do? I tried using ffmpeg to convert the stream to something more useful, but no succes. ffmpeg -i "http://localhost:9002/tv.ts" -vcodec libx264 -r 20 -s 320x240 -threads 2 -vprofile baseline -vpre zoom -strict experimental -acodec aac -ab 96000 -ar 48000 -ac 1 -f rtsp (...)
• 06:17
  Streaming opencv to youtube with ffmpeg - Tim Treurniet Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to live stream to youtube from a c++ opencv project. Currently, my program outputs a RTMP stream which nginx should push to youtube. A problem I'm having is youtube's requirement for an audio stream. I'm trying a workaround by restreaming using ffmpeg. It adds an empty audio stream (not efficient). Another issue is the output speed of my program which is around 10 fps. When playing in vlc or youtube, the stream buffers for a while and plays a few seconds of smooth video. How should I set this up in c++ to play a constant stream with (...) -- https://github.com/andreanobile/opencv_ffmpeg_streaming
• 04:38
  I'm trying to dynamically call to a folder based on path of my program - Jessie Wilson Newest 'ffmpeg' Questions - Stack Overflow
  I have been working on this for a couple days and I feel like I'm going about it wrong. Say my .py program is is Desktop/TEST. The executable I want to run is in Desktop/TEST/ExampleProgram I want to be able to call example.exe and send CLI commands to it out of the above folder. I can do this easily if I hardcode the paths into the program. I need to know how to dynamically change this path depending on where the my program is unpacked. (I'll be using pyinstaller to turn the main .py into a .exe) I have tried doing this with ("%s" % (...)
• 03:39
  fluent-ffmpeg on lambda exits process without any errors - John Grayson Newest 'ffmpeg' Questions - Stack Overflow
  I am running ffmpeg on a lambda that runs, but exits the process before it is finished, but does not produce any sort of error and I am trying to figure out why. My lambda gets triggered when a file is uploaded to s3. The lambda retrieves the file from s3 and processes it using ffmpeg. I put in enough console.logs to determine that the lambda is able to retrieve and save the file just fine; but it exits the process without any errors in the ffmpeg process. Relevant parts of my code: const ffmpeg = require("fluent-ffmpeg"); const tempFolder = "/tmp"; // Set ffmpeg (...)
• 02:57
  How to play two videos side by side using FFmpeg? - user1hjgjhgjhggjhg Newest 'ffmpeg' Questions - Stack Overflow
  Hello I want to create a duet video feature like tiktok. I am using FFmpeg. I have tried this code ffmpeg \\ -i movie_output.mp4 \\ -i movie_output.mp4 \\ -filter_complex \\ "nullsrc=size=360x480[base]; [0:v] setpts=PTS-STARTPTS, scale=360x480, crop=180:480:90:0[left]; [1:v] setpts=PTS-STARTPTS, scale=360x480, crop=180:480:90:0 [right]; [base][left] overlay=x=0:y=0[base1]; [base1][right] overlay=shortest=1:x=180:y=0" \\ -c:v libx264 \\ -y result.mp4 It gives me this error: No such filter: ' ' Error initializing (...)

28 June

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 00:07
  cfhd: Add tag names - Kieran Kunhya git.videolan.org Git - ffmpeg.git/rss log
  cfhd: Add tag names [DH] libavcodec/cfhd.c
• 05:15
  avformat/mov: fix memleaks - Zhao Zhili git.videolan.org Git - ffmpeg.git/rss log
  avformat/mov: fix memleaks Fix two cases of memleaks: 1. The leak of dv_demux 2. The leak of dv_fctx upon dv_demux allocate failure Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐgmail.com> [DH] libavformat/mov.c
• 03:05
  avcodec/internal: remove unused out_frame field from DecodeSimpleContext - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/internal: remove unused out_frame field from DecodeSimpleContext It was introduced in 061a0c14bb but apparently never used Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavcodec/internal.h
• 00:21
  avutil/common: Fix integer overflow in av_ceil_log2_c() - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  avutil/common: Fix integer overflow in av_ceil_log2_c() Fixes: left shift of 1913647649 by 1 places cannot be represented in type 'int' Fixes: 23572/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WMALOSSLESS_fuzzer-5082619795734528 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavutil/common.h
• 00:10
  avcodec/wmalosslessdec: fix overflow with pred in revert_cdlms - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/wmalosslessdec: fix overflow with pred in revert_cdlms Fixes: signed integer overflow: 2048 + 2147483646 cannot be represented in type 'int' Fixes: 23538/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WMALOSSLESS_fuzzer-5227567073460224 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavcodec/wmalosslessdec.c
• 14:46
  avcodec/mpeg12dec: Fix uninitialized data in fate-sub-cc-scte20 - Limin Wang git.videolan.org Git - ffmpeg.git/rss log
  avcodec/mpeg12dec: Fix uninitialized data in fate-sub-cc-scte20 The issue is introduced in a705bcd763e344fa, please tested with below command line: make V=1 fate-sub-cc-scte20 TARGET_EXEC="valgrind --error-exitcode=1" Reported-by: Martin Storsjö <martinⓐmartin.st> Reviewed-by: Martin Storsjö <martinⓐmartin.st> Signed-off-by: Limin Wang <lance.lmwangⓐgmail.com> [DH] libavcodec/mpeg12dec.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 23:11
  FFmpeg on aws lambda - Invalid NAL unit size - Lina Sharifi Moghaddam Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to run below: 1- generate mp4 from one png image and a mp3 file 2- overlay another png image on top of the previous video A-On my local environment (mac) things work perfect: 1A- ffmpeg -loop 1 -i images/01.png -i audio_123e4567-e89b-12d3-a456-426655440000.mp3 -c:v libx264 -pix_fmt yuv420p -shortest 01.mp4 -y ffmpeg version 4.0.2 Copyright (c) 2000-2018 the FFmpeg developers built with Apple LLVM version 9.0.0 (clang-900.0.39.2) configuration: --prefix=/usr/local/Cellar/ffmpeg/4.0.2 --enable-shared (...)
• 23:06
  How to increase speed of ffmpeg stream when running in cli assuming streaming over network - VRu11ra Newest 'ffmpeg' Questions - Stack Overflow
  I'd like to increase the speed of playback so that I can catch up to whatever the newest available audio packet is. Using PulseAudio on archlinux for server, client uses windows although that really shouldn't matter. Server commands issued: pactl load-module module-null-sink sink_name=remote ffmpeg -f pulse -i "remote.monitor" -ac 2 -acodec pcm_s16le -ar 48000 -f s16le "udp://LAN_IP_OF_CLIENT:PORT" Client command issued: ffplay.exe -nodisp -ac 2 -acodec pcm_s16le -ar 48000 -analyzeduration 0 -probesize 32 -f u8 -i udp://0.0.0.0:PORT Current (...)
• 22:27
  Invalid data found when processing input. No start code is found - Alex Blokha Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to concat video from many files. But sometimes I receive an error: "Invalid data found when processing input". So, I am trying to iterate over files with ffprobe and find invalid files. Here is the error. ffprobe started on 2020-06-28 at 16:06:39 Report written to "ffreport.log" Log level: 32 Command line: "f:\\\\prog\\\\ffmpeg\\\\bin\\\\ffprobe.exe" -i Rec496_20200423123337_A_1.avi ffprobe version git-2020-03-23-ba698a2 Copyright (c) 2007-2020 the FFmpeg developers built with gcc 9.2.1 (GCC) 20200122 configuration: --enable-gpl (...)
• 22:11
  ffmpeg.js build is missing defined format - Raggeth Newest 'ffmpeg' Questions - Stack Overflow
  I'm attempting to encode files using pcm_f32le with the f32le format. I've defined both the encoder and format within the makefile present in the cloned ffmpeg.js repository: WEBM_MUXERS = webm ogg null data f32le WEBM_ENCODERS = libvpx_vp8 libopus pcm_f32le If I print out available codecs using the -codecs option, I can see pcm_f32le as an available encoder. However, the -formats option is missing the f32le format. If I attempt to use the format to encode, ffmpeg complains that it isn't a available format. I'm sure I'm missing something (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 22:37
  MAINTAINERS: remove myself as Twitter maintainer - Lou Logan git.videolan.org Git - ffmpeg.git/rss log
  MAINTAINERS: remove myself as Twitter maintainer Signed-off-by: Lou Logan <louⓐlrcd.com> [DH] MAINTAINERS

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 21:31
  ffmpeg use amix and adelay to play ad over song - snowkiterdude Newest 'ffmpeg' Questions - Stack Overflow
  I have two mp3 files, one long and one short(a song and an ad). I need the ad to play over the song starting 15 seconds into the song. I also need the volume of the song to fade out/in slightly before and after the ad. I have tried using amix with adelay but just can't get it right. here is something close but broken. ffmpeg -i song.mp3 -i ad.mp3 -filter_complex "amix=inputs=2:duration=first:dropout_transition=2;adelay=0|15000" output.mp3 How can I get the ad to mix with the song (...)
• 21:26
  ffmpeg in python script - jawwe Newest 'ffmpeg' Questions - Stack Overflow
  I would like to run the following command in a python script, I also want to make it loop over several videos in a folder. This is the command I want to run. ffmpeg -i mymovie.avi -f image2 -vf fps=fps=1 output%d.png I want to fit it in something like this: import ffmpy import os path = './Videos/MyVideos/' for filename in os.listdir(path): name = filename.replace('.avi','') os.mkdir(os.path.join(path,name)) *ffmpeg command here* I found a wrapper for ffmpeg called ffmpy, could this (...)
• 20:34
  Node spawn child process doesn't execute the command after exec child process in aws node 10 lambda - Danielkent Newest 'ffmpeg' Questions - Stack Overflow
  I am attempting to run 2 child processes, but one seems to be blocked and eventually times out the node lambda. Environment: AWS node 10 lambda running in a docker container. Accesses ffmpeg and ffprobe via a lambda layer in the /opt/bin directory. child_process.exec I am running ffprobe in a child_process.exec to get the file format of an audio file. I am using exec because the output is a small json response (which shouldn't consume much memory). child_process.spawn Shortly after I run ffmpeg to convert the audio file to mp3 using (...)
• 19:48
  Extract image frames from live non-youtube video streams - x2212 Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to extract https videos which are live streaming on earthcam.net, skyline.net, etc. I have been, FFmpeg -i "https://" -vf fps=1/5 out%d.png but it gives Invalid data found when processing input
• 19:36
  how do i extract subtitles from a video using FFMPEG? - Reshma Walhekar Newest 'ffmpeg' Questions - Stack Overflow
  I tried with several videos but I am encountering the same error as: 'Output file #0 does not contain any stream'
• 19:02
  RTSP Client for H264 Audio/Video Stream - Jean-Philippe Encausse Newest 'ffmpeg' Questions - Stack Overflow
  I'm looking for a simple way to get data of an IP Camera RTSP Stream (using H264 Audio/Video) and get on the other side a frame by frame byte[] a stream of the audio After many research EmguCV Capture seems hanging forever (no answer from forum) There is many (too big) RTSP Server few decode H264 There is "slow" ffmpeg wrapper There is some managed DirectShow wrapper So I don't know where to go ? And how to do this ? It seems iSpyCamera is doing the job but it's a big project not a little (...) -- RTSP Server

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 04:34
  avcodec/nvenc: support for HEVC timecode passthrough - Limin Wang git.videolan.org Git - ffmpeg.git/rss log
  avcodec/nvenc: support for HEVC timecode passthrough Reviewed-by: Timo Rothenpieler <timoⓐrothenpieler.org> Signed-off-by: Limin Wang <lance.lmwangⓐgmail.com> [DH] libavcodec/nvenc.c [DH] libavcodec/nvenc.h [DH] libavcodec/nvenc_hevc.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 15:13
  Frequency response of ffmpeg filters - Dr_Click Newest 'ffmpeg' Questions - Stack Overflow
  I'm using ffmpeg to decode and encode signal. It works perfectly and I added filters. For example, I'm using such a command : ffmpeg -re -i /home/dr_click/live.wav -af "anequalizer=c0 f=200 w=100 g=-5 t=0|c1 f=200 w=100 g=-5 t=0, anequalizer=c0 f=1000 w=100 g=3 t=0|c1 f=1000 w=100 g=3 t=0" -acodec pcm_s16be -ar 44100 -ac 2 -f rtp rtp://127.0.0.1:1234 I'm streaming my file, adding 2 filters with 200 Hz and 1000 Hz as central frequency and 100 Hz width and it works. With such a filter, I know my gain will be -5db at 200Hz. But what is the gain for (...)
• 13:22
  Ffmpeg saving rtsp stream as mp4 has audio sync issues in Chrome - user3533414 Newest 'ffmpeg' Questions - Stack Overflow
  I'm saving rtsp stream as mp4 files using ffmpeg using the following command; ffmpeg -use_wallclock_as_timestamps 1 -rtsp_transport tcp -i rtsp://192.168.1.30:8554/Stream1 -vcodec copy -acodec copy -f segment -segment_time 60 -reset_timestamps 1 "test-%01d.mp4" When I try to play those files on Chrome, audio sync is broken after a while. I get the following warning in chrome://media-internals/; "Failed to reconcile encoded audio times with decoded output." I also get the following warning for a couple of files with ffmpeg while saving mp4; Non-monotonous DTS (...)
• 11:36
  ffmpeg: `select` filter output frame numbers are off - kindoflike Newest 'ffmpeg' Questions - Stack Overflow
  I want to extract certain frames from video, but using this command ffmpeg -i "video-a.mkv" -vf select="eq(n\\,100)" -vsync 0 -frame_pts true "a_%06d.jpg" ffmpeg -i "video-b.mkv" -vf select="eq(n\\,100)" -vsync 0 -frame_pts true "b_%06d.jpg" it seems I'm getting inconsistent results. for different videos I get differently named files: a_000103.jpg b_000101.jpg why is that?
• 10:02
  ffmpeg jpg frame capture - How to discard corrupted frames - Ryan Griggs Newest 'ffmpeg' Questions - Stack Overflow
  I'm using ffmpeg 2.2.2 (Windows) to export a live camera stream into JPG frames. I'm using the command line: ffmpeg -err_detect aggressive -i rtsp://[ip address]:554/11 -r 1 -s 640x320 -an -f image2 c:\\temp\\snapshots\\snapshot-%03d.jpg This starts a continuous process which exports approximately 1 frame per second from the live stream. However, at various times during the export, ffmpeg throws errors like this: [h264 ⓐ 00037ae0] RTP: missed 2 packets=00:01:09.00 bitrate=N/A dup=0 drop=1186 [h264 ⓐ 02fbc340] Cannot use next picture in error (...) --
• 07:03
  video previews on video just like xvideos - zjose Newest 'ffmpeg' Questions - Stack Overflow
  Video previews are usually images that rotate every so often in a small video. But since that format is old and boring, I would like to be able to create them with ffmpeg just like xvideos does. example (you don't have to worry) -> https://img-l3.xvideos-cdn.com/videos/videopreview/dc/8b/0f/dc8b0facd2879bad18f93dff44d1de2c_169.mp4 They are in size: 362x204. They last: 5 seconds. and they are several fragments in video, and not in images. How could I do it using (...) -- https://img-l3.xvideos-cdn.com/videos/videopreview/dc/8b/0f/dc8b0facd2879bad18f93dff44d1de2c_169.mp4
• 06:03
  How to dump RTSP to raw data file without encoding - Yves Newest 'ffmpeg' Questions - Stack Overflow
  I've read this link: How to dump raw RTSP stream to file? In this link, it seems that dumping RTSP stream to some formatted file, such as mp4, is normal. But I want to store the RTSP stream into the raw data files, instead of files like mp4, avi etc. And I should be able to extract data from the raw data files and send it out as RTSP stream too. In a word, this is what I need: receiving RTSP stream ---> 2. store RTSP data into raw data files ---> 3. read raw data files and send data as RTSP stream Why do I need this? Because as my understanding, (...)

27 June

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 15:34
  avcodec/hevcdec: Add VDPAU to list of supported formats - ManojGuptaBonda git.videolan.org Git - ffmpeg.git/rss log
  avcodec/hevcdec: Add VDPAU to list of supported formats Added VDPAU to list of supported formats for HEVC10 and 12 bit formats also added 42010 bit to surface_parameters and new VDP chroma formats to VDPAUPixFmtMaps Add HEVC 420 10/12 Bit and 444 10/12 Bit support for VDPAU YUV444P10 is defined as the 444 surface with 10bit valid data in LSBs but H/w returns Data in MSBs Hence if we map output as YUV444p16 it is filtering out the LSB to convert to p10 format. Signed-off-by: Philip Langdale <philiplⓐovert.org> [DH] Changelog [DH] libavcodec/hevcdec.c [DH] libavcodec/vdpau.c [DH] (...)
• 15:34
  lavc/vdpau_hevc: add function to find exact vdp_profile for REXT - ManojGuptaBonda git.videolan.org Git - ffmpeg.git/rss log
  lavc/vdpau_hevc: add function to find exact vdp_profile for REXT Add vdpau_parse_rext_profile and use profile constraint flags to determine the exact vdp_profile for HEVC_REXT. If profile mismatch is allowed, select Main profile by default. Add build object in Makefile for h265_profile_level dependency. Signed-off-by: Philip Langdale <philiplⓐovert.org> [DH] libavcodec/Makefile [DH] libavcodec/vdpau_hevc.c
• 16:26
  avformat/isom: add comment to mov_mdhd_language_map - Zhao Zhili git.videolan.org Git - ffmpeg.git/rss log
  avformat/isom: add comment to mov_mdhd_language_map Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavformat/isom.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 23:50
  OBS can't connect to FFMPEG RTMP server - user2253710 Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to send and RTMP stream from OBS to FFMPEG to send out an HLS stream to a player. I am using the following command to start ffmpeg on my server. /usr/local/bin/ffmpeg -listen 1 -i rtmp://host.mydomain.com:1935/live/app -c:v libx264 -crf 21 -preset veryfast -c:a aac -b:a 128k -ac 2 -f hls -hls_time 4 -hls_playlist_type event video-tool/files/live/stream.m3u8 I have port 1935 open. OBS is set to stream to rtmp://host.mydomain.com:1935 When I start the stream in OBS, the connection times out. -Is there anything else that needs to be installed? -How can I (...)
• 21:28
  how can I link FFmpeg and OpenCV by building from source code in my c++ project? [closed] - abid ahsan Newest 'ffmpeg' Questions - Stack Overflow
  I've gone through so many Cmake and Other tutorials to link libraries correctly but things are really convoluted and I can't find the best to get on with my work. I want to start a c++ project using FFmpeg and OpenCV and I want a link library using only Cmake without any package manager. I want to keep these 3rd party libraries in my project directory so that, I can clone my repo from Github and build easily without any dependency. What is the best way to do link 3rd party libraries... (sorry for my bad usage of English. I really need (...)
• 19:51
  mpeg-dash live streaming can't fetch chunks - user1902653 Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to create a live stream of mpeg-dash with ffmpeg. I'm streaming with python the frames to the ffmpeg process. This is the current command I'm using for creating the mpeg-dash manifest and m4s files: ffmpeg -re -f rawvideo -pix_fmt bgr24 -video_size 640x360 -i - -vcodec libx264 -preset ultrafast -tune zerolatency -f dash -window_size 10 -use_template 1 -use_timeline 0 -live 1 /srv/http/dash/stream.mpd I'm using nginx as a server for now and I've created a simple index.html using shaka player, but the problem is I couldn't get (...)
• 19:08
  Batch script calling its own name instead of files of a certain type? - R. Elias Newest 'ffmpeg' Questions - Stack Overflow
  cd %cd% ffmpeg -i %cd%/%04d.png out.mp4 A script with just this in it works completely fine and outputs exactly what I need it to, but: :: A simple script to convert a png or jpg image sequence to an mp4 file with ffmpeg cls ⓐecho off title PNG2MP4 color C echo Ensure you have ffmpeg installed and setup in your environment variables or this script won't work. :QUERY echo This will convert all image files in the following directory to a single mp4, echo %cd% echo are the files PNGs or (...)
• 19:01
  get value from cropdetect - Greg Newest 'ffmpeg' Questions - Stack Overflow
  I have been able to parse the output of ffmpeg cropdetect with a batch file in Windows 7 to get crop=640:480:0:0 but the process goes too far and processes the last mp4 or mkv file twice. I run the first for loop to get a list of mkv or mp4 files in the folder and run a process :gin. The second for loop to run ffmpeg skipping ahead 30 seconds and run cropdetect on only one second of video with the long file of 60 plus entrys of [Parsed_cropdetect_0 ⓐ 0000000002ef8f00] x1:0 x2:1279 y1:0 y2:719 w:1280 h:720 x:0 y:0 pts:1081 t:1.081000 crop=1280:720:0:0 going to (...)
• 18:55
  How to Install ffmpeg on aws lambda machine? - Martin Blaustein Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to run a node js script on aws lambda that uses ffmpeg. To do this, I need to install ffmpeg on the machine itself. I have looked trhough the documentation but I could not find how to connect to the machine that runs the lambda.
• 18:50
  Video compression using ffmpeg error in downloading 'libx264' - yso Newest 'ffmpeg' Questions - Stack Overflow
  I am using ffmpeg to compress a video file: ffmpeg -i Testchange.mp4 -vcodec libx264 -crf 23 crf23.mp4 I recently downloaded the following version of ffmpeg: ffmpeg-4.3-macos64-static I keep getting the following error: Unknown encoder 'libx264' How do i solve this? Previous answers on stack overflow have been focused on ubuntu os, i am using mac? I tried typing this into the command line to no avail: brew install ffmpeg (...)
• 18:17
  FFMPEG and Matplotlib for animations - strange outputs? - user13132640 Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to create animations using FFMPEG and matplotlib. Using the below code, I am creating the FFMpeg writer, and then using a loop, writing a series of graphs to the animation. However, the outputs I'm getting are very strange; sometimes, when I watch the .mp4 file, the first 5 seconds are blank, then the video "ends" (the playback time on my media player says that it's complete), and at that point, my animation shows up. Other times, some frames are missing or skipped. I've tried searching around, but frankly I haven't found anyone with similar (...)
• 18:08
  FFMPEG "Unable to find a suitable output format for 'udp://:'" - Benjamin Dennison Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to figure out how to get FFMPEG to stream my desktop to UDP so that I can then see from VLC Media Player on a LAN connected device. The command I'm trying to run is as follows: .\\ffmpeg.exe -loglevel 56 -video_size 1920x1200 -f dshow -i video="screen-capture-recorder" "udp://192.168.1.10:5000" Which ends up erroring out, stating: Unable to find a suitable output format for 'udp://192.168.1.10:5000' udp://192.168.1.10:5000 Invalid (...)
• 17:57
  A question about ffmpeg drawtext, After 60 seconds, display 5 seconds interval 5 seconds - rancongjie Newest 'ffmpeg' Questions - Stack Overflow
  I want to add a watermark to my video, but I don't want to add it at the beginning of the video, After the beginning of video ,about 60s, I want the watermark to display every 60s for 30s. How should i write： ffmpeg -i input.mp4 -vf "drawtext=fontfile=MS.ttf:text='TEST':x=w-500:y=h-150:start_number=250:enable=lt(mod(t\\,60)\\,30):fontsize=40:fontcolor=white:shadowy=2" -c:v h264_videotoolbox -b:v 2000k -s 1280x720 output.mp4 thank you (...)
• 17:43
  Execute command by php exec() with xampp in ubuntu not working - Mohamed Ali Newest 'ffmpeg' Questions - Stack Overflow
  I executed this command nohup ffmpeg -i input.mp4 -vcodec h264 -preset:v ultrafast -b:v 1000k -acodec mp3 output.mp4 2>output.txt & in ubuntu by Terminal and it worked properly but when I tried to execute it by php exec($myCommand) it didn't work and show this message Error message: I tried to solve it by change name of this file libstdc++.so.6 to libstdc++.so.6.old in this directory /opt/lampp/lib after that when I execute my command it show this message ffmpeg: symbol lookup error: /lib/x86_64-linux-gnu/libcairo.so.2: undefined (...) --
• 16:26
  Using ffmpeg with chunks of file - Yashik Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to download a file as 100mb chunks and I need to convert this using ffmpeg and upload this file to dropbox. The code I tried: import os import requests #---snip---# for chunk in r.iter_content(chunksize=chunksize): #chunksize is 100mb fp = open("a.mp4","wb") fp.write(chunk) fp.close() os.system("ffmpeg -i a.mp4 a.mkv") #code for uploading The error is moov atom is not found 1.How can I convert file chunks with ffmpeg? 2.Can I convert without ever needing to save to a.mp4, like giving chunk (...)