12 décembre

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

• 18:18
  Flask send_file not sending file - jackmerrill Newest 'ffmpeg' Questions - Stack Overflow
  I'm using Flask with send_file() to have people download a file off the server. My current code is as follows: ⓐapp.route('/', methods=["GET", "POST"]) def index(): if request.method == "POST": link = request.form.get('Link') with youtube_dl.YoutubeDL(ydl_opts) as ydl: info_dict = ydl.extract_info(link, download=False) video_url = info_dict.get("url", None) video_id = info_dict.get("id", None) video_title = info_dict.get('title', None) ydl.download([link]) print("sending file...") send_file("dl/"+video_title+".f137.mp4", as_attachment=True) print("file sent, deleting...") (...)
• 17:02
  How to write H264 raw stream into mp4 using ffmpeg directly - Yelsin Newest 'ffmpeg' Questions - Stack Overflow
  I want to wrap the H264 Nalus(x264 encoded) into mp4 using ffmpeg(SDK 2.1), but the output mp4 file could not play. I don't know how to set the pts and dts. Here's my code, using the code from Raw H264 frames in mpegts container using libavcodec and muxing.c from www.ffmpeg.org. My H264 stream has no B-Frame, every nalu starts with 00 00 00 01,the stream begins with sps pps then the h264 data. #include "stdafx.h" #include #include #include "Stream2Mp4.h" #include #include #include #include #include #include #define STREAM_FRAME_RATE 25 #define STREAM_PIX_FMT AV_PIX_FMT_YUV420P /* default (...)
• 15:47
  Change bitrate of USB camera - Nick Saw Newest 'ffmpeg' Questions - Stack Overflow
  I use ELP USB camera with h264-codec output. Ffmpeg-command to take the video stream: ffmpeg -i /dev/video1 -c:v copy output.ts As result I have a video with 4Mb bitrate - this value is too high for my task. There is the same situation when I use GSTreamer: gst-launch-1.0 v4l2src device=/dev/video1 ! video/x-h264,width=1280,height=720,framerate=30/1 ! mpegtsmux ! filesink location=output.ts I know that it's possible to change the bitrate if we decode h264 the stream firstly and then encode it to h264 again. This operation requires too much CPU-power of my NanoPI device. The main (...)
• 14:07
  Rotate video according to rotation metadata and strip off metadata using ffmpeg [on hold] - this.lau_ Newest 'ffmpeg' Questions - Stack Overflow
  I've got a video with the following metadata: Metadata: rotate : 90 creation_time : 2018-12-03T16:13:47.000000Z handler_name : VideoHandle Side data: displaymatrix: rotation of -90.00 degrees And I would like to remove this metadata and rotate the video by whatever rotation value is found there (in this case -90 but it can be anything). The result will be a video with the correct orientation and that works with all video players (including those that don't auto-rotate based on the metadata). I've tried various commands but couldn't find anything that would work. Any idea how to do (...)
• 14:02
  Stabilize ffmpeg rtsp to hls transmuxing - Gust Newest 'ffmpeg' Questions - Stack Overflow
  I'm using ffmpeg to convert a RTSP stream (from a security camera) into a HLS stream which I then play on a website using hls.js. I start the transmuxing with: ffmpeg -i rtsp: -fflags flush_packets -max_delay 1 -an -flags -global_header -hls_time 1 -hls_list_size 3 -hls_wrap 3 -vcodec copy -y .m3u8 I can get the stream to play, but the quality isn't good at all... Sometimes the stream jumps on time or freezes for a while. If I open it using VLC I get the same kind of problems. Any idea why? Or how can I stabilize (...)
• 14:01
  Re-encode and stream UDP TV Channels - Tomy137 Newest 'ffmpeg' Questions - Stack Overflow
  I used from long time mumudvb and one dvb-t pci card to stream TV channels on my network. This is working fine but I've recently add another player that is less powerfull than others so I want to re-encode the video stream. This is my input stream video : Input #0, mpegts, from 'udp://ⓐ239.1.4.1:8200': Duration: N/A, start: 53843.533922, bitrate: N/A Program 1025 Metadata: service_name : M6 service_provider: Multi4 Stream #0:0[0x78]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(tv, bt709), 1920x1080 [ SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc Stream #0:1[0x82](fra): (...)

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

• 11:43
  Libsourcey: Segmentation fault - Iranna Pattar Newest 'libx264' Questions - Stack Overflow
  I am running WebRTC Native Video Recorder demo Application,but getting Segmentation fault (core dumped). here is the cmake command: cmake .. -DCMAKE_BUILD_TYPE=DEBUG -DBUILD_SHARED_LIBS=OFF -DBUILD_MODULES=OFF -DBUILD_APPLICATIONS=OFF \\ -DBUILD_SAMPLES=ON -DBUILD_TESTS=OFF -DWITH_WEBRTC=ON -DWITH_FFMPEG=ON -DBUILD_MODULE_base=ON \\ -DBUILD_MODULE_crypto=ON -DBUILD_MODULE_http=ON -DBUILD_MODULE_json=ON -DBUILD_MODULE_av=ON \\ -DBUILD_MODULE_net=ON -DBUILD_MODULE_socketio=ON -DBUILD_MODULE_symple=ON -DBUILD_MODULE_stun=ON \\ -DBUILD_MODULE_turn=ON -DBUILD_MODULE_util=ON -DBUILD_MODULE_uv=ON (...)

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

• 12:48
  How can i obtain raw frames with out writing them to disk using ffmpeg? - Abhijeet Newest 'ffmpeg' Questions - Stack Overflow
  I have to use ffmpeg to detect shot change in a video, for which i need to monitor and each and every frame and save only the required ones. Writing all 30 frames to disk and then choosing takes a lot of time and is impractical, is there a way to get the decoded frames in a raw form before saving them to the disk?
• 11:46
  How to specify image in FFmpeg command - Caleb Newest 'ffmpeg' Questions - Stack Overflow
  I was able to successfully compile & import FFmpeg into my existing iOS app. However now I would like to run the following commands. Can anyone tell me, how to pass image name in FFmpeg command, I would like to form command in iOS swift. I have an example in android: String command = “ -i beach.jpg output.jpg“ If I mention image name “beach.jpg”, after adding it to my project, in logs, error “No such file or directory” Then I have created format var resourceFolder = Bundle.main.resourcePath var image1 = URL(fileURLWithPath: resourceFolder ?? (...)
• 10:35
  syntax error near unexpected token `do' in bash script - Avi Newest 'ffmpeg' Questions - Stack Overflow
  I have bash script which takes 3 parameters from the command line. It compares all of the files in the directory to see if they are of the type of the first 2 parameters. If they are, the script converts such files to the type of the third parameter using an FFMPEG command. I would execute the script with the following command: ./convert.sh .avi .mp4 .flv That this, this script would convert all of the .avi and .mp4 files to .flv. When I run the script, I get the error syntax error near unexpected token `do' in bash script. Here is the code: #!/bin/bash # $1 is the first parameter (...)
• 08:35
  Cannot find installation of real FFmpeg (which comes with ffprobe) - Asm Goni Newest 'ffmpeg' Questions - Stack Overflow
  I was trying to fit a generator into a model and I got this error: AssertionError: Cannot find installation of real FFmpeg (which comes with ffprobe). I have looked over many of the solutions on GitHub and other questions on Stack Overflow but none of them worked for me. Here is one of the commands I ran: sudo add-apt-repository ppa:mc3man/trusty-media sudo apt-get update sudo apt-get install ffmpeg sudo apt-get install frei0r-plugins pip list also indicates the presence of ffmpeg-1.4 In addition, I tried force reinstalling and updating ffmpeg just in case any dependencies were not (...)
• 06:51
  FFMPEG- Convert video to images - hack Newest 'ffmpeg' Questions - Stack Overflow
  how can i convert a video to images using ffmpeg? Example am having a video with total duration 60 seconds. I want images between different set of duration like between 2-6 seconds, then between 15-24 seconds and so on. Is that possible using ffmpeg?

Piwik http://piwik.org/

• 01:24
  Why Matomo is a serious alternative to Google Analytics 360 - Jake Thornton Piwik
  There’s no doubt about it, the free version of Google Analytics offers great value when it comes to making data-driven decisions for your business. But as your business starts to grow, so does the need for a more powerful web analytics tool. Why would I need to use a different web analytics tool? It’s because Google Analytics (free version) is very limited when it comes to meeting the needs of a fast growing business whose website plays a pivotal role in converting its customers. This is where the Google Analytics 360 suite comes in, which is designed to meet the needs of businesses looking (...) -- Why Matomo is a serious alternative to Google Analytics 360, Analytics Platform - Matomo

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

• 04:06
  avcodec/libdav1d: add support for 12bit streams - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/libdav1d: add support for 12bit streams Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavcodec/libdav1d.c
• 01:24
  doc/indevs: document libdc1394 options - Lou Logan git.videolan.org Git - ffmpeg.git/rss log
  doc/indevs: document libdc1394 options Signed-off-by: Lou Logan <louⓐlrcd.com> [DH] doc/indevs.texi

11 décembre

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

• 17:50
  How to convert Mp4 to HLS using C++/Python programmatically? [on hold] - L.Kong Newest 'ffmpeg' Questions - Stack Overflow
  I want to convert mp4 to HLS using C++ (Preferred) or Python programmatically. Does anyone can provide some library and detailed code for me? Thanks.
• 23:54
  Implementing FFMpeg -r and -vf like feature using libav* libraries? - whadhack Newest 'ffmpeg' Questions - Stack Overflow
  Wondering if anyone can offer some pointers on how use FFMpeg libav* libraries to implement the following? Specially the -r and -vf options? ffmpeg -hwaccel vaapi -hwaccel_device /dev/dri/renderD129 -hwaccel_output_format vaapi -i my.mp4 -vf 'scale_vaapi=w=640:h=480' -r 1/10 -c:v mjpeg_vaapi -global_quality 90 -f image2 my_%03d.jpeg

Piwik http://piwik.org/

• 21:45
  Matomo Tag Manager out of beta, now available! - Matomo Core Team Piwik
  Matomo’s free open-source Tag Manager is out of beta and now available in Matomo 3.7.0! ⟎ -- Matomo Tag Manager out of beta, now available!, Analytics Platform - Matomo

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

• 21:20
  ffmpeg does not produce smooth videos from mkv h265 - user3776738 Newest 'ffmpeg' Questions - Stack Overflow
  It's kind of subjective, but I'm not able to produce 100% smooth videos with ffmpeg. As input I use https://www.libde265.org/hevc-bitstreams/tos-1720x720-cfg01.mkv as a example.This is a h264 mkv video which is running really badly with my vlc player on my win7 laptop.Converting it to a h264 video let it play much better, but it still appears not to be 100% smooth. Especialy in Vegas 9 it even hangs like once a second. Other h264 videos even with 1080p or bigger run perfect with vlc and much better with Vegas, so it is not my laptop. its seems that there can be a lot of differences (...) -- https://www.libde265.org/hevc-bitstreams/tos-1720x720-cfg01.mkv

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

• 17:55
  avfilter/vf_paletteuse: fix flags for alpha_threshold option - Paul B Mahol git.videolan.org Git - ffmpeg.git/rss log
  avfilter/vf_paletteuse: fix flags for alpha_threshold option [DH] libavfilter/vf_paletteuse.c

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

• 15:43
  Multiple nVidia GPU transcoding (NOT computing) bottleneck - Daniel Cantarin Newest 'ffmpeg' Questions - Stack Overflow
  I'm doing some nVidia multi-GPU testing. However, this tests are not on the computing field but transcoding, using nvenc/nvdec. I have a setup with 3 Quadro GPUs (max 4 on this motherboard), and running some transcoding jobs using ffmpeg. Thing is, up to 8 jobs everything is fine, with tolerable GPU and CPU stats. But when reaching the 9th job, the nVidia cards metrics start to fall down. Whats troublesome is this: it doesn't matter the job distribution. That is, if I send 8 jobs to GPU0, and 1 job to GPU1, is the same as 4-5, or 4-4-1, or 0-4-5, etc. What I see beggining on the 9th (...)
• 07:41
  Integrate FFmpeg on iOS [on hold] - Caleb Newest 'ffmpeg' Questions - Stack Overflow
  I have referred links, still I have confusion. If any one has an idea then please share with me. I am searching to implement FFmpeg on iOS for GIF , as like the example given for android, Please refer this => https://medium.com/wolox-driving-innovation/https-medium-com-wolox-driving-innovation-the-power-of-ffmpeg-on-android-ef6e0c01d59f I have referred these links, https://github.com/DeviLeo/DLGPlayer https://github.com/ElfSundae/FFmpeg-iOS-build https://github.com/kewlbear/FFmpeg-iOS-build-script what is the correct way to achieve this. Any help would be highly (...) -- https://medium.com/wolox-driving-innovation/https-medium-com-wolox-driving-innovation-the-power-of-ffmpeg-on-android-ef6e0c01d59f, https://github.com/DeviLeo/DLGPlayer, https://github.com/ElfSundae/FFmpeg-iOS-build, https://github.com/kewlbear/FFmpeg-iOS-build-script

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

• 16:42
  configure: require the first stable version of libdav1d - James Almer git.videolan.org Git - ffmpeg.git/rss log
  configure: require the first stable version of libdav1d Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] configure

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

• 14:35
  Detect scene change with no audio together using FFMPEG - Amit Singh Newest 'ffmpeg' Questions - Stack Overflow
  I want to detect scene change with no audio using ffmpeg in window. I want a single command to detect at which point scene changed as well as no audio is there.

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

• 12:08
  Anomalie #4245 (Fermé): Petit bug de sous_repertoire() Revisions : SPIP
• 12:08
  Anomalie #4245: Petit bug de sous_repertoire() Revisions : SPIP
  Tu veux pas faire les liens redmine ? r24162 spip-dev (solution A : suppression totale de _CREER_DIR_PLAT) r24163 spip 3.2 (solution C : gérer le _ final pour $base et $subdir si _CREER_DIR_PLAT uniquement) r24164 spip 3.1 (solution C : idem).
• 12:07
  Révision 24164: Report de r24163 : Ticket #4245 : Correction empêchant la création de certains ré... - marcimatⓐrezo.net Revisions : SPIP
  Lorsque la constante CREER_DIR_PLAT n’est pas définie, ne pas supprimer les soulignés finaux des répertoires. À l’inverse, par contre le faire aussi pour $subdir si la constante est là (sinon, on a une incohérence entre les appels `sous_repertoire('a/b')` et `sous_repertoire('a', 'b_')`. Note: on ne gèrera plus ce vieux _CREER_DIR_PLAT à partir de SPIP 3.3-dev. Corrige, entre autres un bug dans le plugin Bigup empêchant la réception de certains fichiers.
• 12:03
  Révision 24163: Ticket #4245 : Correction empêchant la création de certains répertoires, s’ils o... - marcimatⓐrezo.net Revisions : SPIP
  Lorsque la constante CREER_DIR_PLAT n’est pas définie, ne pas supprimer les soulignés finaux des répertoires. À l’inverse, par contre le faire aussi pour $subdir si la constante est là (sinon, on a une incohérence entre les appels `sous_repertoire('a/b')` et `sous_repertoire('a', 'b_')`. Note: on ne gèrera plus ce vieux _CREER_DIR_PLAT à partir de SPIP 3.3-dev. Corrige, entre autres un bug dans le plugin Bigup empêchant la réception de certains fichiers.
• 10:42
  Anomalie #4245 (Fermé): Petit bug de sous_repertoire() Revisions : SPIP
  Découvert hier, un enchaînement tueur : $demo = sous_repertoire(_DIR_TMP, 'demo_'); // $demo = 'tmp/demo_' $bug = sous_repertoire($demo, 'potiron'); Le système a rencontré une erreur lors de l’écriture du fichier tmp/demo/potiron/.plat. En fait, lors de l’appel de sous_repertoire($base, $subdir), la fonction vire les / et _ finaux de $base (mais pas le _ final éventuel de $subdir). Il se retrouve ici à vouloir créer le répertoire tmp/demo/potiron au lieu de tmp/demo_/potiron et n’y arrive pas, vu que le répertoire parent (demo) n’existe pas. Histoire¶ Après quelques fouilles archéologiques, il se (...)

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

• 11:13
  Sending LiveVideo to Http server using ffmpeg - SourabhKus Newest 'ffmpeg' Questions - Stack Overflow
  I want to stream a video over http server i can do this easily with ffmpeg exe using below command ffmpeg -i abc.mp4 -f mpeg1video -vf "scale=640:480" -r 20 https://localhost/XXXX but i want to achieve same result using ffmpeg library instead of exe. i can easily play/record video using ffmpeg libraries.

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

• 11:45
  Révision 24162: Ticket #4245 : Correction empêchant la création de certains répertoires, s’ils on... - marcimatⓐrezo.net Revisions : SPIP
  À partir de SPIP 3.3-dev, on supprime la gestion de la constante _CREER_DIR_PLAT de la fonction `sous_repertoire` ; on tolère un _ final sur les noms de répertoires à créer. Corrige, entre autres un bug dans le plugin Bigup empêchant la réception de certains fichiers.
• 11:25
  Anomalie #4245: Petit bug de sous_repertoire() Revisions : SPIP
  La constante arrivât avec https://core.spip.net/projects/spip/repository/revisions/14750 il y a 9 ans.
• 11:19
  Anomalie #4245: Petit bug de sous_repertoire() - RastaPopoulos ♥ Revisions : SPIP
  Même avis pour nettoyer/simplifier au moins sur le trunk.

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

• 09:41
  create an Audio only rendition - 8KHz 16-bit little endian uncompressed.wav - Sasidharan S Newest 'ffmpeg' Questions - Stack Overflow
  I need to convert a file which has 16 channels as below from pcm_s24le to pcm_s16le and want to put it in wav container. When I tried to convert it, it is converting for the only first stream and other 15 streams are missing. I need have all channels in my output with s16le in wav container. Code used: ffmpeg -f s24le -ar 48000 -ac 16 -i inputfile -acodec pcm_s16le -ac 16 output.wav Input file: Metadata: file_package_umid: 0x060A2B340101010101010D1313000000417264656E646F0117124A5702366C00 track_name : Picture Stream #0:1: Audio: pcm_s24le, 48000 Hz, 1 channels, s32 (24 bit), 1152 kb/s (...)
• 09:25
  Use libav to copy raw H264 stream as mp4 without codec - cKt 1010 Newest 'ffmpeg' Questions - Stack Overflow
  Since my platform didn't include libx264 some I can't use H264 codec in libav. I know this question is similar to Raw H264 frames in mpegts container using libavcodec. But trust me, I test bob2's method but didn't work. There are some problem here: How to set PTS and DTS? If I use setting below which was bob2 told, Libav will print: "Timestamps are unset in a packet for stream 0. This is deprecated and will stop working in the future. Fix your code to set the timestamps properly" packet.flags |= AV_PKT_FLAG_KEY; packet.pts = packet.dts = 0; So should I use frame rate to calculate it (...)

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

• 09:43
  Anomalie #4244: notice dans urls/simples.php - jluc - Revisions : SPIP
  j'ai vu que je pouvais commiter sur les plugins-dist ! ok avec https://zone.spip.org/trac/spip-zone/changeset/112720 svp fermer
• 08:54
  Anomalie #4244 (Nouveau): notice dans urls/simples.php - jluc - Revisions : SPIP
  Dans function _generer_url_simple($type, $id, $args = '', $ancre = '') à la fin, on retourne _DIR_RACINE . $url . $args . ($ancre ? "#$ancre" : ''); mais il arrive souvent que $args soit un array(), qui est une valeur par défaut des fonctions qui appellent _generer_url_simple Il faudrait donc ajouter, juste avant après le if($args) : else $args='';

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

• 09:08
  FFmpeg: concat protocol gives corrupt output and skips few frames - Prashant_Sarin Newest 'ffmpeg' Questions - Stack Overflow
  Using: var command = "-y -i concat:$concatString -c copy -bsf:a aac_adtstoasc $outputFile" output video skips few frames in between and jumps from 4th second to 6th sec If i use: var command = "-y -i concat:$concatString -c:v libx264 -preset ultrafast -crf 30 $outputFile" Then, the output is fine but it is taking too much time with the warning of [mp4 ⓐ 0xf7228600] Non-monotonous DTS in output stream 0:1 The logs are as: 2018-12-11 13:27:19.146 7435-7435/com.onedayapp.mystory.dev D/com.onedayapp.mystory.oneday.controllers.service.VideoCompositionService: onProgress ----Merge---- [mp4 (...)
• 04:16
  Error while using h264_cuvid decoder with ffmpeg - tthibalti Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to decode a video using the NVIDIA cuvid hardware acceleration with ffmpeg. I am using a NVIDIA GeForce GT 745M Graphics card (GPU:GK107), wich is compatible with cuvid as precised by NVIDIA here I compiled ffmpeg with the following flags : ./configure --enable-cuda --enable-nvenc --enable-cuvid Then, I used ffmpeg with the following command line : ffmpeg.exe -hwaccel cuvid -c:v h264_cuvid -i video.mkv video.mkv ffmpeg finishes and seems to be unable to open cuvid functions : Cannot load cuvidGetDecoderCaps [h264_cuvid ⓐ 07047b80] Failed loading nvcuvid. Stream mapping: (...) -- here

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

• 01:17
  doc/indevs: fix hdvbuffer typo in iec61883 example - Lou Logan git.videolan.org Git - ffmpeg.git/rss log
  doc/indevs: fix hdvbuffer typo in iec61883 example Option name is dvbuffer. Signed-off-by: Lou Logan <louⓐlrcd.com> [DH] doc/indevs.texi
• 00:52
  lavc/tiff: Fix leak of yuv_line in TiffContext. - Carl Hetherington git.videolan.org Git - ffmpeg.git/rss log
  lavc/tiff: Fix leak of yuv_line in TiffContext. Signed-off-by: Carl Hetherington <cthⓐcarlh.net> [DH] libavcodec/tiff.c