176 articles

21 mars

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

22:28
How to detect a surge of activity in a video? - Alain Collins Newest 'ffmpeg' Questions - Stack Overflow

I'd like to automatically detect a surge of activity in a video, e.g. basketball jump shot, hockey face-off, sprinters starting, etc., preferably using ffmpeg. In these instances, there's some motion as the players assume their positions, followed by a pause as they wait for the ref to throw the ball or drop the puck, followed by a lot of motion as all players begin to react. It's also typical that the camera will be still during this period and begin moving as the ball or puck changes position. I've tried using the 'select' filter select='gt(scene,0.4)', but that seems to be more (...)
20:44
What ffmpeg command to use to convert a list of unsigned integers into an audio file? - John Newest 'ffmpeg' Questions - Stack Overflow

I have a file that contains a list of about forty thousand integers that are space delimited, with each integer between the value of 0 and 255. It is this file here: https://github.com/johnlai2004/sound-project/blob/master/integers.txt If you connect a speaker to an ESP32 breakout board, then run this list of integers through the digital to analog converter at a frequency of 24kHz, you will hear the sentence, "That's not the post that you missed." What I want to know is how do you use FFMPEG to convert this list of integers into a sound file that other computer can play to hear the (...) -- https://github.com/johnlai2004/sound-project/blob/master/integers.txt, https://github.com/johnlai2004/sound-project/blob/master/play-audio.ino
20:13
Can I add silent audio based on another video, to a video created from a PNG loop - GDP Newest 'ffmpeg' Questions - Stack Overflow

We have videos that we transcode to h.264, but COPY the original audio track (they all vary). We are now trying to prepend a 10 second disclaimer before the original video begins. Apparently the audio tracks of the two videos must be the same, so I'm trying to add a silent audio track to the generated video based on the audio track of the video it will be concatenated with. From other questions, I've learned to add -f lavfi -i anullsrc=channel_layout=stereo:sample_rate=44100, but this results in garbled audio when the concatenation occurs. So using ffprobe, I would like to get whatever (...)

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

20:34
MAINTAINERS: remove myself as mailing list maintainer - Lou Logan git.videolan.org Git - ffmpeg.git/rss log

MAINTAINERS: remove myself as mailing list maintainer Refer to Michael, compn, or Baptiste. Signed-off-by: Lou Logan <louⓐlrcd.com> [DH] MAINTAINERS
20:26
doc/mailing-list-faq: ffmpeg-devel is now subscription only - Lou Logan git.videolan.org Git - ffmpeg.git/rss log

doc/mailing-list-faq: ffmpeg-devel is now subscription only Nobody is going to check the queue anymore, so users must now subscribe to send messages to ffmpeg-devel. This will prevent orphaned/ignored messages from rotting in the abandoned queue. This matches the behavior of ffmpeg-user and libav-user. Also, this addresses some other nits. Signed-off-by: Lou Logan <louⓐlrcd.com> [DH] doc/mailing-list-faq.texi

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

18:03
FFMpeg Effect Zoom In and Zoom Out Video File - Maxim_A Newest 'ffmpeg' Questions - Stack Overflow

I need to implement the effect of zooming in and out for video. Two operations are needed. The first operation is to set the zoom to zero at the beginning of the clip, and by the end of the clip the zoom was gradually increased twice. The second operation is that at the beginning of the video the zoom is equal to two, and by the end of the video the zoom should be zero. That is, it is necessary for the zoom to increase / decrease smoothly throughout the entire duration of the video. I know that Zoompad effect is used for this, but I could not use it for video. Thank you all in (...)
17:49
Concatenation of 2 videos drops all audio - GDP Newest 'ffmpeg' Questions - Stack Overflow

I've read a number of other answers with similar problems, but they all have other variables/complications that (apparently) I don't understand, because I've had no luck in trying to apply them to the problem. I'm trying to prepend a 10 second disclaimer video with no audio (created from a png file) to an MP4 video WITH audio, and am losing the audio altogether when I concatenate them. What I'm doing is: ffmpeg.exe -i MyDisclaimer.mp4 -c copy -bsf:v h264_mp4toannexb -f mpegts temp1.ts ffmpeg.exe -i MyVideo.MP4 -c copy -bsf:v h264_mp4toannexb -f mpegts temp2.ts ffmpeg.exe -i (...)
17:17
Discord bot python: discord.errors.ClientException: ffmpeg was not found - S. Klore Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to make a discord bot that makes music in a voice channel. But it doesn't do that. It connects to the voice channel, but doesn't play anything and it gives an error in the console. I'm on windows and I'm using the discord.py rewrite. My code: import discord, random, datetime, asyncio, nacl, ffmpeg TOKEN = 'What token' client = discord.Client() ⓐclient.event async def on_message(message): if message.content.lower() == '$play': if message.content.lower() == '$play': channel = client.get_channel(547155964328149007) vc = await channel.connect() (...)
16:05
FFMPEG get last 20 seconds from multiple videos with different lengths - Oliver Svrček Newest 'ffmpeg' Questions - Stack Overflow

Hello I am trying to get last 20 seconds of videos. Lets say the folder has 100 videos with various lenghts of one video (form 30 seconds to 10 minutes). Friend recommended me FFMPEG and gave me .bat file with sample commands but it doesn't work. ffmpeg -sseof -20 -i D:\\videos\\*.mp4 output.mp4 It gives me this error --
15:28
ffmpeg record timelapse camera v4l2 - Paul G. Newest 'ffmpeg' Questions - Stack Overflow

How can I instruct ffmpeg (v.: 3.4.5) to record only one frame per minute from my video camera at /dev/video0 and copy it to a new file with 30 frames per second? Goal is timelapse video of some months and record only one frame per minute into the out video to save space and processing power instead of just capturing the camera at 30fps and then preprocess the huge video file for speed up... The camera delivers a 1920x1080 30fps stream with "mjpeg" selected in commandline. I would like to keep the raw frames and just copy them into the out file. I tried this command to get 1fps input to (...)
14:48
ffmpeg fast but accurate seek in avi - C.M. Newest 'ffmpeg' Questions - Stack Overflow

I've built a small pipeline to automatically cut and enhance video files which I recorded. I detect scenes by using the ffmpeg's select='gt(scene,0.4)',showinfo filter. After parsing these information I run ffmpeg for each scene to produce single video files for them, for example: ffmpeg -y -i test.avi -ss 00:00:00.00 -to 00:00:54.61 -c copy test_1.avi ffmpeg -y -i test.avi -ss 00:00:54.61 -to 00:01:38.21 -c copy test_2.avi ffmpeg -y -i test.avi -ss 00:01:38.21 -to 00:01:59.45 -c copy test_3.avi [...] As you can see I use the -ss and -to parameters to specify where the output files (...)
13:51
FFmpeg.swr_convert: audio to raw 16 bit pcm, to be used with xna SoundEffect. Audio cuts out when i convert - Robert Russell Newest 'ffmpeg' Questions - Stack Overflow

I want to resample mkv(vp8/ogg) and also raw 4 bit adpcm to raw 16bit pcm byte[] to be loaded into SoundEffect from xna library. So I can play it out while I'm using other code to display the frames (the video side is working). I can read a 16 bit wav file and play it. But when I goto resample something it doesn't play 100%. One file is 3 mins and 15 secs. I only get 13 sec and 739 ms before it quits playing. I have been learning to do this by finding code samples in c++ and correcting it to work in c# using ffmpeg.autogen. the below is my best attempt at resampling. int nb_samples = (...)
13:44
Live streaming from h.264 IP camera to Web browser - ilmix Newest 'ffmpeg' Questions - Stack Overflow

I want to live stream video from h.264/h.265 IP camera to browser with little to no delay and in decent quality (Full HD). I know there are couple of questions like this one but the answers seem to be either incomplete or outdated. So far I've tried ffmpeg and ffserver and had some success with them, but there are problems: When I stream to mjpg the quality isn't great, if I use webm quality is better but there is significant delay (aprox. 5 seconds), probably due to transcoding from h264 to vp9. How can I improve it? Is it possible to stream h264 without transcoding it to different (...)

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

13:25
Roadmap #3844: Gérer la parenté dans la déclaration d'un objet éditorial. - Peet du Revisions : SPIP

Je note rapidement ici : intégrer cette notion dans la fonction quete_parent_lang() (voir https://core.spip.net/projects/spip/repository/entry/spip/ecrire/public/quete.php#L59)

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

13:33
ffmpeg amerge Error while filtering: Cannot allocate memory - Recessive Newest 'ffmpeg' Questions - Stack Overflow

This seems to be a recurring problem, as seen here: ffmpeg Error while filtering: Cannot allocate memory . I ask this only because that question has no answer. I get a memory error every time I try to use amerge to combine music and a video (with audio). I am at a loss as to how to get around this, so if there are any other command line alternatives that do the same thing (combining audio with video, merging the new audio and the current audio on the video) any suggestions would be much appreciated. FYI, here is the ffprobe information for the two files I am trying to combine: video (...)
13:06
Making hls files with -hls_time > 10 - Mathias Nervik Newest 'ffmpeg' Questions - Stack Overflow

I am building a local app for watching local videos from the browser, because of some of the videos beeing over 1hour they started to lagg out and using HLS instead of .mp4 solved this. In the app I'm building the user will often skip 10-40 seconds forward. My question is: Should I use -hls_time 60 or would it be better to just use -hls_time 10 Current code: ffmpeg -i "input.mp4" -profile:v baseline -level 3.0 -start_number 0 -hls_time 10 -hls_playlist_type vod -f hls (...)
11:57
video not playing on Android (chrome) and iOS (safari) - lviggiani Newest 'ffmpeg' Questions - Stack Overflow

Hi I have a few video that DOES NOT play in Android (directly on Chrome) and on iOS (directly on Safari) but plays on Windows, Mac and Linux on any browser. Here is the ffprobe output Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'intro_sequence_01.mp4': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 date : 2018-10-08T08:15:57.948731 encoder : Lavf58.18.104 Duration: 00:00:08.00, start: 0.000000, bitrate: 259 kb/s Stream #0:0(und): Video: h264 (High 4:4:4 Predictive) (avc1 / 0x31637661), yuv444p, 1920x1080, 257 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (...)

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

01:18
lavf: Constify the probe function argument. - Carl Eugen Hoyos git.videolan.org Git - ffmpeg.git/rss log

lavf: Constify the probe function argument. Reviewed-by: Lauri Kasanen Reviewed-by: Tomas Härdin [DH] libavformat/3dostr.c [DH] libavformat/4xm.c [DH] libavformat/aacdec.c [DH] libavformat/aadec.c [DH] libavformat/ac3dec.c [DH] libavformat/acm.c [DH] libavformat/act.c [DH] libavformat/adp.c [DH] libavformat/ads.c [DH] libavformat/adxdec.c [DH] libavformat/aea.c [DH] libavformat/aiffdec.c [DH] libavformat/aixdec.c [DH] libavformat/amr.c [DH] libavformat/anm.c [DH] libavformat/apc.c [DH] libavformat/ape.c [DH] libavformat/apngdec.c [DH] libavformat/aqtitledec.c [DH] libavformat/asfdec_f.c (...)

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

11:24
OpenCV returns an Array of All Zeros on video.read - Ikechukwu Anude Newest 'ffmpeg' Questions - Stack Overflow

Below is the relevant code import cv2 as cv import numpy as np video = cv.VideoCapture(0) #tells obj to use built in camera\\ #create a face cascade object face_cascade = cv.CascadeClassifier(r"C:\\Users\\xxxxxxx\\AppData\\Roaming\\Python\\Python36\\site- packages\\cv2\\data\\haarcascade_frontalcatface.xml") a = 1 #create loop to display a video while True: a = a + 1 check, frame = video.read() print(frame) #converts to a gray scale img gray = cv.cvtColor(frame, cv.COLOR_BGR2GRAY) #create the faces faces = face_cascade.detectMultiScale(gray, scaleFactor=1.5, minNeighbors=5) for(x, y, w, h) in faces: (...)
09:04
FFMPEG with Neon Optimization - madadi Newest 'ffmpeg' Questions - Stack Overflow

I am decoding an h.264 video file on android using ffmpeg. The performace is very low. I would like to enable neon optimzation in ffmpeg to improve the performace. Inspite of adding the neon related commands in the config file, I don't see performance gain. Can someone tell me if I am going wrong anywhere? My config file is as given below. function build_one_r6 make clean ./configure \\ --prefix=$PREFIX \\ --disable-shared \\ --enable-static \\ --enable-version3 \\ --disable-doc \\ --disable-ffmpeg \\ --disable-ffplay \\ --disable-ffprobe \\ --disable-ffserver \\ --disable-avdevice \\ (...)
07:55
convert from avi to mp4 using ffmpeg - user3217695 Newest 'ffmpeg' Questions - Stack Overflow

I want to play an avi video format file in browsers using HTML5 video code. Since the avi format file doesn't play in browsers i have to convert it into mp4 format file. For conversion i am using the ffmpeg code in Windows. ffmpeg -i input.avi OUTPUT.mp4 The conversion of video is completed but the video codec and audio codec isn't valid thus it fails to play to play using video tag in html5. Please find me proper code which coverts the file. another conversion code i tried was.. ffmpeg -i input.avi -c:v libx264 -preset slow -crf 22 -c:a libfaac -b:a 128k OUTPUTAVINew.mp4 but i got (...)
04:31
ffmpeg strange errors variables/undefined constants - Rick Newest 'ffmpeg' Questions - Stack Overflow

I was trying to achieve get an animated text overlay. I found this thread: ffmpeg moving text drawtext When I run this code however: ffmpeg -i VideoInput.mp4 \\ -vf "drawtext=enable='between(t,12,15)':fontfile=myfont.otf:text='Test test': \\ x='if(lt(t-t2+1\\,0)\\,x1+(x2-x1)*(t-t1)/(t2-t1-1)\\,x)': \\ y='if(lt(t-t2+1\\,0)\\,y1+(y2-y1)*(t-t1)/(t2-t1-1)\\,y)':fontsize=65" \\ -acodec copy outputVideo.mp4 I get the error: [Parsed_drawtext_0 ⓐ 000002d862595c00][Eval ⓐ 000000e1d79fe300] Undefined constant or missing '(' in 't2-t1-1),x)' [Parsed_drawtext_0 ⓐ 000002d862595c00] Failed to configure input (...)

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

01:36
Maintainers : remove myself - Martin Vignali git.videolan.org Git - ffmpeg.git/rss log

Maintainers : remove myself Too much hostility in this project Not enough respect for users and contributors I'm not interested to contribute anymore [DH] MAINTAINERS

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

00:26
ffmpeg strange errors variables/undefined constants & question fonts - Rick Newest 'ffmpeg' Questions - Stack Overflow

I was trying to achieve get an animated text overlay. I found this thread: ffmpeg moving text drawtext When I run this code however: ffmpeg -i VideoInput.mp4 \\ -vf "drawtext=enable='between(t,12,15)':fontfile=myfont.otf:text='Test test': \\ x='if(lt(t-t2+1\\,0)\\,x1+(x2-x1)*(t-t1)/(t2-t1-1)\\,x)': \\ y='if(lt(t-t2+1\\,0)\\,y1+(y2-y1)*(t-t1)/(t2-t1-1)\\,y)':fontsize=65" \\ -acodec copy outputVideo.mp4 I get the error: [Parsed_drawtext_0 ⓐ 000002d862595c00][Eval ⓐ 000000e1d79fe300] Undefined constant or missing '(' in 't2-t1-1),x)' [Parsed_drawtext_0 ⓐ 000002d862595c00] Failed to configure input (...)

20 mars

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

23:36
lavf/allformats: Remove an accidentally committed line. - Carl Eugen Hoyos git.videolan.org Git - ffmpeg.git/rss log

lavf/allformats: Remove an accidentally committed line. Regression since 3aa6208d. Reported-by: Lou Logan [DH] libavformat/allformats.c

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

21:43
How to discard context reinits during H264 video decoding from GStreamer webrtcbin - Szymon Piechaczek Newest 'ffmpeg' Questions - Stack Overflow

Gstreamer pipeline is receiving video this way: webrtcbin -> rtph264depay -> avdec_h264 -> ... I've enabled do_nack on rtpbin inside webrtcbin to make video quality better but the problem is that lost buffers from RTP cause 'sometimes' h264 decoder to Reinit context to ... which makes the whole output video grey (with only movement visible) until the next keyframe is received (but this can happen many seconds later). I've noticed that EVENT_GAP is emitted right before context reinit but dropping them doesn't help. How to make decoding artifacts acting 'as always' on the corrupted (...)
21:56
OpenCV returns an Empty Frame on video.read - Ikechukwu Anude Newest 'ffmpeg' Questions - Stack Overflow

Below is the relevant code import cv2 as cv import numpy as np video = cv.VideoCapture(0) #tells obj to use built in camera\\ #create a face cascade object face_cascade = cv.CascadeClassifier(r"C:\\Users\\xxxxxxx\\AppData\\Roaming\\Python\\Python36\\site- packages\\cv2\\data\\haarcascade_frontalcatface.xml") a = 1 #create loop to display a video while True: a = a + 1 check, frame = video.read() print(frame) #converts to a gray scale img gray = cv.cvtColor(frame, cv.COLOR_BGR2GRAY) #create the faces faces = face_cascade.detectMultiScale(gray, scaleFactor=1.5, minNeighbors=5) for(x, y, w, h) in faces: (...)

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

22:54
doc/ffmpeg: muxdelay and muxpreload are output options - Aman Gupta git.videolan.org Git - ffmpeg.git/rss log

doc/ffmpeg: muxdelay and muxpreload are output options Signed-off-by: Aman Gupta <amanⓐtmm1.net> [DH] doc/ffmpeg.texi

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

21:20
tf.contrib.ffmpeg.decode_audio replacement? - Imran Paruk Newest 'ffmpeg' Questions - Stack Overflow

In the tensorflow docs, it stated that tf.contrib.ffmpeg.decode_audio is depreciated, however it does not state what it's replacement is... THIS FUNCTION IS DEPRECATED. It will be removed after 2018-09-04. Instructions for updating: This will be deleted and should not be used. Here is the link: https://www.tensorflow.org/api_docs/python/tf/contrib/ffmpeg/decode_audio -- https://www.tensorflow.org/api_docs/python/tf/contrib/ffmpeg/decode_audio
19:43
MOV to MP4 vidoe conversion via FFMPEG - Igor Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to convert a MOV video file to MP4. Been trying to use org.bytedeco.javacpp-presets.ffmpegand during the conversion, I'm getting Could not find tag for codec pcm_s16le in stream Where pcm_s16leis my audio stream codec. The code I try to run is from ffmpeg-example Do I need somehow to convert my audio prior to converting the video to MP4? or is it something else? -- ffmpeg-example

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

19:26
Anomalie #4313 (Fermé): se passer du plugin FORUM - b b Revisions : SPIP

Super, merci pour le commit, on ferme :)
13:41
Anomalie #4313 (Fermé): se passer du plugin FORUM - chan kalan Revisions : SPIP

En rapport à r114194 Le squelette montre une erreur encore si on a pas le plugin FORUM, il semble qu'on peut ajouter un "?" sur la boucle FORUMS - (FORUMS?) - ici : https://core.spip.net/projects/squelettes-dist/repository/revisions/114194/entry/inclure/forum.html#L36

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

18:59
Convert mp3/audio source to RTSP or something that is live streamable - spezticle Newest 'ffmpeg' Questions - Stack Overflow

I've got an mp3 that's continually being written to. I'm trying to get some HTML5 tag or something to play this file and it will, but it stops at the end of the file as it was loaded in the moment the webpage was pulled up. If I refresh the page, the new length is reflected but position is lost. This is streaming, but not live. I'm using ffmpeg to push an audio source from a local computer to a remote web server. That webserver receives the file with ffmpeg and writes it to the mp3. Is there no better way of doing this that isn't absurdly (...)
18:41
C++ FFmpeg distorted sound when converting audio - david Newest 'ffmpeg' Questions - Stack Overflow

I'm using the FFmpeg library to generate MP4 files containing audio from various files, such as MP3, WAV, OGG, but I'm having some troubles (I'm also putting video in there, but for simplicity's sake I'm omitting that for this question, since I've got that working). My current code opens an audio file, decodes the content and converts it into the MP4 container and finally writes it into the destination file as interleaved frames. It works perfectly for most MP3 files, but when inputting WAV or OGG, the audio in the resulting MP4 is slightly distorted and often plays at the wrong speed (...)

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

19:04
lavf: Constify AVProbeData* in av_probe_input_format(). - Carl Eugen Hoyos git.videolan.org Git - ffmpeg.git/rss log

lavf: Constify AVProbeData* in av_probe_input_format(). [DH] libavformat/avformat.h [DH] libavformat/format.c
18:56
lavf/avformat: Add a warning that ff_const59 is not part of the public api. - Carl Eugen Hoyos git.videolan.org Git - ffmpeg.git/rss log

lavf/avformat: Add a warning that ff_const59 is not part of the public api. [DH] libavformat/avformat.h
18:52
lavf: Constify AVInputFormat pointer. - Carl Eugen Hoyos git.videolan.org Git - ffmpeg.git/rss log

lavf: Constify AVInputFormat pointer. [DH] libavformat/allformats.c [DH] libavformat/avformat.h [DH] libavformat/avidec.c [DH] libavformat/dashdec.c [DH] libavformat/format.c [DH] libavformat/hls.c [DH] libavformat/img2dec.c [DH] libavformat/mpeg.c [DH] libavformat/rtpdec_asf.c [DH] libavformat/sapdec.c [DH] libavformat/utils.c
18:38
lavf: Constify AVOutputFormat pointer. - Carl Eugen Hoyos git.videolan.org Git - ffmpeg.git/rss log

lavf: Constify AVOutputFormat pointer. [DH] libavformat/avformat.h [DH] libavformat/fifo.c [DH] libavformat/format.c [DH] libavformat/hdsenc.c [DH] libavformat/hlsenc.c [DH] libavformat/mux.c [DH] libavformat/rtp.c [DH] libavformat/rtpenc_chain.c [DH] libavformat/rtpenc_mpegts.c [DH] libavformat/segment.c [DH] libavformat/smoothstreamingenc.c [DH] libavformat/version.h [DH] libavformat/webm_chunk.c
17:50
lavc/tiff: Allow decoding of cmyka (five components). - Carl Eugen Hoyos git.videolan.org Git - ffmpeg.git/rss log

lavc/tiff: Allow decoding of cmyka (five components). Fixes ticket #7675. [DH] libavcodec/tiff.c

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

18:15
Anomalie #4313: se passer du plugin FORUM - chan kalan Revisions : SPIP

désolé pour le dérangement, classons l'affaire vite fait, merci ;o) https://zone.spip.net/trac/spip-zone/changeset/114578/spip-zone
18:14
Anomalie #4313: se passer du plugin FORUM - chan kalan Revisions : SPIP

désolé pour le dérangement, classons l'affaire vite fait, merci ;o)
18:13
Révision 114578: en rapport avec r114194, cette boucle semble aussi nécessiter son "?" - chankalanⓐchoc0.net Revisions : SPIP

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

16:58
Render AVFrame of RGB565 in SDL - Kumar Newest 'ffmpeg' Questions - Stack Overflow

I am working on H264 decoder, I want to decode native image format data to RGB565 and render that image in SDL. struct SwsContext *sws_ctx = NULL; int frameFinished; AVPacket packet; // initialize SWS context for software scaling sws_ctx = sws_getContext(pCodecCtx->width, pCodecCtx->height, pCodecCtx->pix_fmt, pCodecCtx->width, pCodecCtx->height, PIX_FMT_RGB565, SWS_BILINEAR, NULL, NULL, NULL ); avcodec_decode_video2(pCodecCtx, pFrame, &frameFinished, &packet); // Convert the image from its native format to RGB sws_scale(sws_ctx, (uint8_t const * const *)pFrame->data, (...)
16:38
How to create a m3u8 Byte-Range playlist without creating a new file - Rodrigo Valença Newest 'ffmpeg' Questions - Stack Overflow

I've found some nice related questions,such as this one How to create byte-range m3u8 playlist for HLS? but the best answer, that provide us this ffmpeg command ffmpeg -i sample.ts -hls_time 20 -hls_flags single_file out.m3u8 creates a new .ts file to use in the m3u8. In my application we need to create the m3u8 file, but we want it to be faster than the solution provided, it was unworkable for us. I think that the provided solution is a little slow 'cause it has to create a new file, do you guys know a solution that uses a already existing encoded ts (...)
15:27
How compress images with ffmpeg till specific size threshold , and ability to restore back - VitalyT Newest 'ffmpeg' Questions - Stack Overflow

I need to reduce as much storage as i can. so , Lets say i have dir in file system that contains pictures (png/jpeg ,etc...) and html ,js files My purpose is look for media filenames suffix for example *.jpg, *.png, *.webm, *.ico in a folder and compress max till 38K. basically the average original images size is 170K. Avatar images should be under 4KB when a good size would be 2KB I've tried so far ffmpeg -i ~/Desktop/test123.jpeg -vframes 1 -compression_level 100 ~/Desktop/output_1623x1623.png but it gives me maximum 104K... what is the best way to compress or scaling down the (...)
15:25
Twitch Stream as input for ffmpeg - user2361174 Newest 'ffmpeg' Questions - Stack Overflow

My objective is to take a twitch video stream and generate an image sequence from it without having to create an intermediary file. I found out that ffmpeg can take a video and turn it into a video and turn it into an image sequence. The ffmpeg website says that it's input option can take network streams, although I really can't find any clear documentation for it. I've searched through Stack Overflow and I haven't found any answers either. I've tried adding the link to the stream: ffmpeg -i www.twitch.tv/channelName But the program either stated the error "No such file or directory": (...) -- ffmpeg website,
15:15
How to use ffmpeg on hardware acceleration with multiple inputs? - Cole Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to speed up the rendering of a video by using the GPU instead of the CPU. This code works, but I don't know if I'm doing it correctly. ffmpeg -hwaccel cuvid -c:v hevc_cuvid \\ -i video.mp4 \\ -i logo.png \\ -i text.mov \\ -c:v h264_nvenc \\ -filter_complex " \\ [0]scale_npp=1920:1080,hwdownload,format=nv12[bg0]; \\ [bg0]trim=0.00:59.460,setpts=PTS-STARTPTS[bg0]; \\ [1]scale=150:-1[logo1];[bg0][logo1]overlay=(W-w)-10:(H-h)-10[bg0]; \\ [2]scale=500:-1[logo2];[logo2]setpts=PTS-STARTPTS[logo2]; \\ [bg0][logo2]overlay=-150:-100[bg0]; \\ [bg0]fade=in:00:30,fade=out:1750:30[bg0]" \\ -map "[bg0]" (...)
14:57
Change aspect ratio and restream with ffmpeg - F.A Newest 'ffmpeg' Questions - Stack Overflow

How Can I change ratio of video and restream it to twich. ffmpeg -i http://iptv.com -c:v copy -aspect 16:9 -c:a aac -ar 44100 -ab 128k -ac 2 -strict -2 -flags +global_header -bsf:a aac_adtstoasc -bufsize 3000k -f flv rtmp://live.twitch.tv/app/live_4BwQ; Need only change ratio of video to 16:9 or 1280X720?
14:17
How to loop images using boomerang effect with ffmpeg? - geekpedia1 Newest 'ffmpeg' Questions - Stack Overflow

Hi everyone I'm trying to take 12 images at 24fps and I would like to do boomerang effect like 4 times. can someone help me to solve this thx

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

14:40
Révision 24261: report adapté de r23724 ref #3598 - b b Revisions : SPIP
13:57
Anomalie #4313 (En cours): se passer du plugin FORUM - b b Revisions : SPIP

Gogogo (dans le trunk iniquement), sachant qu'il y a déjà une notation de ce type dans ce fichier https://core.spip.net/projects/squelettes-dist/repository/revisions/114194/entry/inclure/forum.html#L11
13:55
Anomalie #4313: se passer du plugin FORUM - b b Revisions : SPIP

Ça ne concerne que la trunk amha :)

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

13:11
FFmpeg commands work for root only(centos 6.10) - Prashant Hanamghar Newest 'ffmpeg' Questions - Stack Overflow

I have dedicated server. I have installed FFmpeg on my root. All commands related to FFmpeg works if I logged in as root but no command is working if I logged in as user. I have tried adding one user to sudoers also. Also I want to use FFmpeg commands in PHP shell_exec() or exec(). Can someone tell me the solution. Thanks in advance. user command: $ ffmpeg output: -bash: ffmpeg: command not found root command: $ ffmpeg output ffmpeg version N-93394-g14eea7c Copyright (c) 2000-2019 the FFmpeg developers built with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-23) configuration: (...)
12:45
Clipping audio problem on ffmpeg live stream - Ivan Bombash Stokic Newest 'ffmpeg' Questions - Stack Overflow

in 30-40% of the live stream i get some king of distortion or clipping in the streamed audio and i have no idea why, is is only because low hardware performance maybe? I am running the stream on a Raspberry pi 3b+ CPU usage while streaming from 25 to 30% Ram usage 28% , storage device is a USB pen drive. Here is the code: ffmpeg -re -f alsa -i default -re -stream_loop -1 -i "/home/pi/Documents/Youtube/video720p.mp4" -c:v copy -c:a aac -f flv -max_muxing_queue_size 400 rtmp://a.rtmp.youtube.com/live2/pfjd-jhjs-k3td-xxxx Or i should buffer it before streaming or re-encode the audio before (...)
12:28
ffmpeg - how to remove white frames? - Frank Newest 'ffmpeg' Questions - Stack Overflow

We doing videorecording with strobelight and the framerate is 30 fps. If we set the strobe below 30hz we got a black frame in the video. if we set the strobe over 30hz we got a white frame. I found how to remove the blackframe and duping the the frame before using: ffmpeg -i test.avi -vf blackframe=1,metadata=select:key=lavfi.blackframe.pblack:value=0:function=less -vsync cfr -c:a copy out.avi But i cant find anything to remove the white frame. Is there any filter i can use? Greetings (...)

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

12:49
Anomalie #4312: Oubli de report du commit : protection contre les bots qui floodent tmp/sessions - Pierre KUHN Revisions : SPIP

Ni en 3.3 mais les autres branches comme là 3.2 ou 3.1 ne l'on pas non plus. A faire aussi non ?
12:02
Anomalie #4312 (En cours): Oubli de report du commit : protection contre les bots qui floodent tm... - b b Revisions : SPIP

Hmm on dirait bien que si cf le ticket d'origine #3276 qui pointe vers r21576, tu confirmes ? Ha non, my bad, je viens de comparer les diffs qui ne sont pas les mêmes.
11:40
Anomalie #4312 (En cours): Oubli de report du commit : protection contre les bots qui floodent tm... - jluc - Revisions : SPIP

Le commit https://core.spip.net/projects/spip/repository/revisions/21596 n'a pas été reporté dans SPIP 3.3 « Fix #3276 : quand on a trop de sessions ouvertes (plus de 1000, personalisable par la constante _MAX_NB_SESSIONS_OUVERTES) on purge toutes les sessions anonymes de plus de 3h pour ne pas flooder le tmp/sessions. (Mecanisme de protection contre les bots qui postent sur le formulaire d'abonnement newsletter qui provoque la creation d'une session anonyme avec session_email) Cela permet de ne pas changer le comportement par défaut des sessions anonymes sauf en cas d'attaque/spam. Les gros (...)

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

10:52
Changing/Replace 1st dot in every generated jpg filename from video to remain single dot - Mr.AX Newest 'ffmpeg' Questions - Stack Overflow

my site is using ffmpeg to generate a thumbnail jpg for every video being uploaded. The code as below: // get the videos uploaded foreach ($videos as $video) if ($profile_author_id == $userid || current_user_can('level_10')) $imagebuttons = ''; echo 'ID.'" style="background: url('.$video->guid.'.jpg) center no-repeat; background-size: cover;">'; echo $imagebuttons; if(get_post_meta($video->ID, 'processing', true) && !is_video_processing_running(get_post_meta($video->ID, 'processing', true))) delete_post_meta($video->ID, 'processing'); unlink(get_post_meta($video->ID, (...)
09:21
ffmpeg, /dev/video0, -f decklink - Camille Goudeseune Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to capture video from a PCI card, the Blackmagic DeckLink Mini Recorder, via ffmpeg, on a headless host running Ubuntu 18.04.2 LTS, hopefully with a command like ffmpeg -f decklink -i /dev/video0 ... How can I make that work? I have two obstacles. No /dev/video0 ffmpeg -i /dev/video0 ... fails: /dev/video0: No such device or address. v4l2-ctl --list-devices fails with the same error message. I built /dev/video0, and it looks okay: mknod /dev/video0 c 81 0 chown root.video /dev/video0 chmod g+rw /dev/video0 To compare this file with a working one, I ran strace cat (...)
08:19
Where is my ffmpeg stream getting saved to? - Chris Newest 'ffmpeg' Questions - Stack Overflow

I'm just starting to explore ffmpeg (ultimately for use with openCV), and I'm running this command: rootⓐbeaglebone:/# ffmpeg -f video4linux2 -r 25 -s 640x480 -i /dev/video0 /out.avi At which point the camera indicator light turns on and it appears to be capturing. However when I end it with CTRL+C, the file is nowhere to be found. Any thoughts? Full output: rootⓐbeaglebone:/# ffmpeg -f video4linux2 -r 25 -s 640x480 -i /dev/video0 /out.avi ffmpeg version v0.7.4, Copyright (c) 2000-2011 the Libav developers built on Oct 9 2012 10:50:57 with gcc 4.5.4 20120305 (prerelease) configuration: (...)
07:59
FFMPEG - Speed up video for time lapse - quicker/faster? - chadwin Newest 'ffmpeg' Questions - Stack Overflow

Okay, I know this question has been asked a bajillion times. However, I have one small addition to the question that I haven't seem to have been able to find in my googling. I'm certainly not a pro at FFMPEG...I've been using the standard speed up/slow down template for FFMPEG, the one I'm using is: ffmpeg -i input.mp4 -filter:v "setpts=PTS/60" -an output.mp4 I'm currently working with an hour long 4K/60FPS video...I want to shrink it down to about 30 seconds or so, so I'm using PTS/100, and I don't need audio...the problem is, this is taking FOREVER...which I completely expected it to. (...)
06:15
Opencv Videocapture fails to read https url videos - Purav Zumkhawala Newest 'ffmpeg' Questions - Stack Overflow

I want to read HTTPS URL videos in my Ubuntu system without downloading them. I can do this in windows OS but when I try to run the same code in Ubuntu using the same opencv VideoCapture method it fails to get any frames. Why is this so? I have used same opencv version in both Ubuntu and Windows, can anyone guide me towards a workaround, a tutorial using which I can compile opencv and stream url videos or any other library that supports this functionality in Ubuntu ? I have tried almost everything but with no productive result which has led me to finally ask this as a question. opencv (...)
05:53
Lossless flip or rotation the MKV file by FFmpeg batch program - Hyun seok Cho Newest 'ffmpeg' Questions - Stack Overflow

I want to rotate my MKV files. MKV file is 4K (VP9) / usually 300 Mb around. I tried it with FFmpeg batch program. How can I get losslessly rotated MKV files? Here are my options. Presets : Defaults Parameters : -vf "transpose=1" [Only...]

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

06:49
avformat/smoothstreamingenc:add bitrate calculate - Jun Li git.videolan.org Git - ffmpeg.git/rss log

avformat/smoothstreamingenc:add bitrate calculate Calculate bitrate based on fragment size, only applied when bitrate is not set, for example rtsp source. Reviewed-by: Steven Liu <lqⓐchinaffmpeg.org> Signed-off-by: Jun Li <junli1026ⓐgmail.com> [DH] libavformat/smoothstreamingenc.c

Newest 'x264' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/x264

05:22
To get OpenCV VideoWriter work across platforms consistently for MP4 container with H264 encoding - Moh Newest 'x264' Questions - Stack Overflow

I am trying to get OpenCV VideoWriter work across platform consistently for MP4 container with H246 encoding. Target platforms in order of importance - Ubuntu, Raspbian, OSX Basically, my shortcoming at this point is not understanding the relationship of FourCC code (as a parameter to OpenCV VideoWriter) to the FFMPEG backend and its requirements. I am interested to understand the game in play rather than discussing a piece of code. What I want to know is when I specify 'X264' as FourCC code trying to write an x.MP4 file (FFMPEG backend) and the request is marshalled to FFMPEG what (...)

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

02:49
generate video containing scrolling image - Sorin Buturugeanu Newest 'ffmpeg' Questions - Stack Overflow

I want to generate a video [let's say 800x600] from a 800x10000 still image. The image has to scroll, from top to bottom as if someone was actually scrolling a page. If it could scroll faster over some portions and slower over others, that would be great, if not I think I could just make a few separate videos and then just stitch them up. I cannot find any documentation on this subject; could anyone give me a hint? Thanks for your time!

19 mars

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

22:58
What are mv, fd, aq, vq, sq and f in a video stream? - Pawan Newest 'ffmpeg' Questions - Stack Overflow

I am playing video streams using RTSP over TCP using FFPLAY and it plays fine when the vq value increases, but stops after 5-6 seconds when only the value before M-V increases. nan M-V: nan fd= 0 aq= 0KB vq= 0KB sq= 0B f=0/0 ...... ...... Duration: N/A, start: 2.133467, bitrate: N/A Stream #0:0: Video: h264 (Main), yuvj420p(pc), 1280x1024, 15 fps, 25 tbr, 90k tbn, 30 tbc [swscaler ⓐ 0x7fd9502403c0] deprecated pixel format used, make sure you did set range correctly "76.81" M-V: -5.409 fd= 0 aq= 0KB vq= 0KB sq= 0B f=2/2 ` Can someone please explain what these M-V, fd, aq, vq, f are, as (...)
22:05
different results when trying to close video - miki Newest 'ffmpeg' Questions - Stack Overflow

I am trying to use FFmpegWriter in order to write a video, which is most of the time working. But, sometimes it just does not want to close the video at the end and return simply this error "AttributeError: 'FFmpegWriter' object has no attribute '_proc'" which does not make sense to me, mostly because it works sometimes, and sometimes not. Also, sometimes restarting the kernel helps, but not always... any help is greatly appreciated. Here is the code and error: writer = skvideo.io.FFmpegWriter(path_to_video, inputdict='-r': str(fps), '-s':'x'.format(width,height), outputdict='-r': (...)
21:58
ffmpeg stereo to mono loses audio quality - ladderfall Newest 'ffmpeg' Questions - Stack Overflow

I am trying to extract audio (wav) from a mp4 file and keep only 1 channel but the output wav file is all noise. I use this command to extract audio: ffmpeg -i test.mp4 -ar 32000 -ac 1 out.wav However, if I extract either the left channel or right channel only then the audio is audible, but I have a lot of video files to extract audio from and need to automate it so I would rather use -ac 1 to get 1 channel than have to guess and choose either left or right channel for all videos. Extract only right channel: ffmpeg -i test.mp4 -ar 32000 -map_channel 0.1.1 -c:v copy outR.wav Is there a (...)

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

21:46
doc/ffmpeg: remove entry for -loop_output - Gyan Doshi git.videolan.org Git - ffmpeg.git/rss log

doc/ffmpeg: remove entry for -loop_output Option doesn't exist .. hasn't for a few years now. [DH] doc/ffmpeg.texi

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

21:27
Révision 114572: Amélioration du critère compatible_spip qui permet maintenant de multiplier les ... - ericⓐsmellup.net Revisions : SPIP

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

20:07
Audi0Segment.from_wav error: OSError: [Errno 2] No such file or directory - Coder123 Newest 'ffmpeg' Questions - Stack Overflow

Does anyone know why I am receive a no file or directory error when i execute the code below? I am using Python 2, FYI. Seems like an easy fix, but I can't seem to identify it. Here is my code that i am using. import ffprobe import ffmpeg import pydub from pydub import AudioSegment AudioSegment.from_wav("/home/e136320/sample.wav").export("/output/file.mp3", format="mp3") Here is the error message when code is executed: OSErrorTraceback (most recent call last) in () 2 #sound.export("/home/e136320/sample.mp3", format="mp3") 3 ----> 4 (...)
19:58
FFMPEG multiple file pattern not working in single command - Bhavik Rathod Newest 'ffmpeg' Questions - Stack Overflow

I want to add multiple file sequences in single ffmpeg command, below is my code, video is getting created but only first image sequence is getting used, second is getting ignored ffmpeg -y -i input.mp4 -start_number 0000001 -i 1/%07d.png -i 2/%07d.png -filter_complex "[0][1]overlay=x=10:y=10:enable='between(t,0,3)'[v1];[v1][2]overlay=x=10:y=10:enable='between(t,3.8561422222222,6.9761777777778)'[v2]" -map "[v2]" -map 0:a out.mp4 Now the problem is FFMPEG wants continous images, which i don't have i have images starting from 0000001.png in each folder, how can i accomplish this without (...)
19:03
AudiSegment.from_wav error: OSError: [Errno 2] No such file or directory - Coder123 Newest 'ffmpeg' Questions - Stack Overflow

Does anyone know why I am receive a no file or directory error when i execute the code below? I am using Python 2, FYI. Seems like an easy fix, but I can't seem to identify it. Here is my code that i am using. import ffprobe import ffmpeg import pydub from pydub import AudioSegment AudioSegment.from_wav("/home/e136320/sample.wav").export("/output/file.mp3", format="mp3") Here is the error message when code is executed: OSErrorTraceback (most recent call last) in () 2 #sound.export("/home/e136320/sample.mp3", format="mp3") 3 ----> 4 (...)
06:16
Cannot play H264/AAC, mpeg-ts, HTTP stream in browser [on hold] - Ishaan Shringi Newest 'ffmpeg' Questions - Stack Overflow

I have a H264/AAC based MPEG-2 transport stream from a server. The browser is unable to play the stream natively, probably because of the transport stream container format. I could not find a javascript player that could support this stream. Is this possible using any js library, plugin or an extension implementation?
14:39
Android, Splitting GIFs with FFMPEG doesnt work - raddeee Newest 'ffmpeg' Questions - Stack Overflow

I wanted to split animated gif files using FFmpeg-Android-Java, so I referenced this question Android, split gif to frames with ffmpeg and wrote this code. String path = "/storage/emulated/0/Download/mothersday-toaster.gif"; String cmd[] = "-i",path,"-vsync","0","/storage/emulated/0/Download/output$03d.png"; try // to execute "ffmpeg -version" command you just need to pass "-version" ffmpeg.execute(cmd, new ExecuteBinaryResponseHandler() ⓐOverride public void onStart() ⓐOverride public void onProgress(String message) ⓐOverride public void onFailure(String message) Log.d("Q", "failed (...) -- FFmpeg-Android-Java
13:35
ffmpeg speed up video - Windows - Flash Thunder Newest 'ffmpeg' Questions - Stack Overflow

In manual it says: ffmpeg -i input.mkv -filter:v 'setpts=0.5*PTS' output.mkv But when I run: ffmpeg -i input.mp4 -filter:v 'setpts=0.5*PTS' speedup.mp4 I get an error: [AVFilterGraph ⓐ 0000000002500600] No such filter: 'setpts=0.5*PTS' Error opening filters! Not sure if it means that filter can't be opened at all or simply this filter is not available. How do I run it correctly? Or maybe my release does not support it, then where can I get the release that would work right? Win32/x64 (...)
12:25
Can ffmpeg convert audio to raw PCM? If so, how? - David van Geest Newest 'ffmpeg' Questions - Stack Overflow

I'm currently using ffmpeg to convert FLV/Speex to WAV/pcm_s16le, successfully. However, I now need the output format to be RAW, that is, PCM signed 16-bit little endian, without the WAV header. I tried the following: ffmpeg -y -i input.flv -vn -acodec pcm_s16le output.raw But ffmpeg responds with: Unable to find a suitable output format for 'output.raw' I also tried using 'output.pcm' and 'output' as output file names, with the same result. I also tried the -f flag to specify raw format, but that gives: Unknown input or output format: raw Is this possible with FFmpeg? If so, (...)
12:14
What command convert mjpeg IP camera streaming to mp4 file with lowest CPU usage? - ChanhLM Newest 'ffmpeg' Questions - Stack Overflow

like above question, I want find out what ffmpeg command can help me reduce cpu usage when running 50 IP camera (running same 50 command). My ffmpeg command: ffmpeg -f mjpeg -y -use_wallclock_as_timestamps 1 -i 'http://x.x.x.x:8090/test1?.mjpg' -r 3 -reconnect 1 -loglevel 16 -c:v mjpeg -an -qscale 10 -copyts '1.mp4' 50 command like that take my computer (4 core) 200% CPU I want this computer can run for 150 camera, any advise? ========================================================= using -c:v copy can make it faster but fize size is terrible I try slow down frame rate by 3 with -r (...)
11:16
FFmpeg Video is not shown, after encoding audio and video - Ashutosh Singla Newest 'ffmpeg' Questions - Stack Overflow

I'm using FFMPEG to encode my video which also has audio in it ffmpeg -i .\\A0002780.kava23_Fin.avi -c:v libx265 -preset ultrafast -crf 20 -c:a aac output.mp4 This command is working OK with no errors. But when I play the video, I can hear only audio and can't see the video. Here are the logs of the command: ffmpeg version N-83280-gcba4f0e Copyright (c) 2000-2017 the FFmpeg developers built with gcc 5.4.0 (GCC) configuration: --enable-gpl --enable-version3 --enable-cuda --enable-cuvid --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-nvenc --enable- avisynth --enable-bzlib (...)
10:05
Is there a way to remove GoPro fisheye using ffmpeg - user4223883 Newest 'ffmpeg' Questions - Stack Overflow

It seems possible to compensate the fisheye distortion using ffmpeg thanks to the lenscorrection filter: ffmpeg -i in.mp4 -vf "lenscorrection=cx=0.5:cy=0.5:k1=-.25:k2=-.25" out.mp4 What values for k1 and k2, particularly for a gopro? Is there a way to compute them? -- lenscorrection
09:39
ffmpeg loop not working keeps dropping frames after first loop - Ivan Bombash Stokic Newest 'ffmpeg' Questions - Stack Overflow

I did try out to make it work but got this error , i am new in this universe so i am asking for help. (drop frames after the first loop (as the timestamp will suddenly go back in time).) [flv ⓐ 0x117a2f0] Video codec rawvideo not compatible with flv Could not write header for output file #0 (incorrect codec parameters ?): Function not implemented My code now as i try to loop it, it stops after first loop, drops the frames... ffmpeg -f alsa -i default -f lavfi -re -fflags +genpts -i "movie=/home/pi/Documents/Youtube/video.mp4:loop=0, setpts=N/(FRAME_RATE*TB)" -c:v copy -c:a aac -f flv (...)
08:49
Package not found - add libav to PKG_CONFIG_PATH environment variable - Brayton Larson Newest 'ffmpeg' Questions - Stack Overflow

I am attempting to build the Parrot SDK and when running the command it continuously fails due to multiple libav package variants not being found. Below is the error message. userⓐTheMysteriousMachine:~/WORKING_DIRECTORY$ ./build.sh -p arsdk-native -t build-sdk -j [I] Starting task 'build-sdk' [I] In '/home/user/WORKING_DIRECTORY': ALCHEMY_TARGET_CONFIG_DIR="/home/user/WORKING_DIRECTORY/products/arsdk /native/config" ALCHEMY_TARGET_OUT="/home/user/WORKING_DIRECTORY/out/arsdk-native" ALCHEMY_TARGET_PRODUCT="arsdk" ALCHEMY_TARGET_PRODUCT_VARIANT="native" ALCHEMY_TARGET_SCAN_ADD_DIRS=" (...)
06:46
Show Filename in Video ffmpeg batch script - Oli Shingfield Newest 'ffmpeg' Questions - Stack Overflow

I have a folder with around 10 different mov files. I would like to add the filename as text on each of the videos using ffmpeg in a bat file. Could someone help me achieve this please? EDIT: I have tried using ⓐECHO OFF&Setlocal EnableDelayedExpansion Set INPUT=E:\\\\Users\\\\Oli\\\\Documents\\\\Projects\\\\v1.3.0\\\\downloads3 Set OUTPUT=E:\\\\Users\\\\Oli\\\\Documents\\\\Projects\\\\v1.3.0\\\\downloads3 for %%a in ("%INPUT%\\*.*") DO ( set "filename=%%~na" ffmpeg -i "%%a" -vf "drawtext=text=!fileName:.= (...)
06:30
how to reduce ffmpeg compression time - Virendra Varma Newest 'ffmpeg' Questions - Stack Overflow

Hi I am new with FFmpeg and I am trying to compress the video file by using this command "-y", "-i", source_file_path, "-s", "480x640", "-r", "24", "-c:v", "libx264", "-pix_fmt", "yuv420p", "-preset", "ultrafast", "-b:v", "512k", "-bufsize", "3968k", "-crf", "26", "-c:a", "copy", destination_file_path currently, it's taking 3 minutes to compress a 1-minute long file how I can reduce the compressing process time. I am using FFmpeg 4.0. thanks EDITED I am using an android phone to compress the video and I am using this FFmpeg git (...) -- FFmpeg git library

Revisions : saisies http://zone.spip.org/trac/spip-zone/log/_plugins_/saisies

05:39
Revision 114569: [Salvatore] [source:_plugins_/saisies/trunk/lang/ saisies] Export ... - maieulⓐ… Revisions : saisies

[Salvatore] saisies Export depuis http://trad.spip.net de la langue en -- Log

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

05:13
Download ONLY audio from a youtube video - Feras Newest 'ffmpeg' Questions - Stack Overflow

I know that there are a million ways to download a video from youtube and then convert it to audio or do further processing on it. But recently I was surprised to see an app called YoutubeToMp3 on mac actually showing "Skipping X mb of video" and supposedly only downloading the audio from the video, without the need to use bandwith to download the entire video and then convert it. I was wondering if this is actually correct and possible at all because I cant find any way to do that. Do you have any ideas ? EDIT: After some tests here is some additional information on the topic. The video (...) -- http://download.wavetlan.com/SVV/Media/HTTP/MP4/ConvertedFiles/MediaCoder/MediaCoder_test6_1m9s_XVID_VBR_306kbps_320x240_25fps_MPEG1Layer3_CBR_320kbps_Stereo_44100Hz.mp4

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

05:04
tests/fate-run: fix regression in encoding options - James Almer git.videolan.org Git - ffmpeg.git/rss log

tests/fate-run: fix regression in encoding options Set threads back to 1. Fixes fate when run in multi threaded mode. Regression since d0c43e32427ec1efac364be0987a6aafa695527f. Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] tests/fate-run.sh

18 mars

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

21:25
avcodec/hevcdec: decode at most one slice reporting being the first in the picture - James Almer git.videolan.org Git - ffmpeg.git/rss log

avcodec/hevcdec: decode at most one slice reporting being the first in the picture Fixes deadlocks when decoding packets containing more than one of the aforementioned slices when using frame threads. Tested-by: Derek Buitenhuis <derek.buitenhuisⓐgmail.com> Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavcodec/hevcdec.c
12:24
swscale/ppc: Add av_unused to template vars only used in one includer - Lauri Kasanen git.videolan.org Git - ffmpeg.git/rss log

swscale/ppc: Add av_unused to template vars only used in one includer [DH] libswscale/ppc/swscale_ppc_template.c
12:19
swscale/ppc: Clean up some mixed decl warnings - Lauri Kasanen git.videolan.org Git - ffmpeg.git/rss log

swscale/ppc: Clean up some mixed decl warnings [DH] libswscale/ppc/swscale_altivec.c [DH] libswscale/ppc/swscale_ppc_template.c [DH] libswscale/ppc/swscale_vsx.c
20:18
h2645_parse: Fix loglevel for NAL header parsing - Derek Buitenhuis git.videolan.org Git - ffmpeg.git/rss log

h2645_parse: Fix loglevel for NAL header parsing We don't treat this as an error. Signed-off-by: Derek Buitenhuis <derek.buitenhuisⓐgmail.com> [DH] libavcodec/h2645_parse.c
14:38
avcodec/libdav1d: use a reference to the allocated buffer instead of wrapping the... - James Almer git.videolan.org Git - ffmpeg.git/rss log

avcodec/libdav1d: use a reference to the allocated buffer instead of wrapping the Dav1dPicture Removes an av_malloc() per frame. Reviewed-by: BBB Reviewed-by: nevcairiel Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavcodec/libdav1d.c

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

23:14
Is it possible that this is made with ffmpeg? [on hold] - Reckless Velociraptor Newest 'ffmpeg' Questions - Stack Overflow

And if so is it possible to reproduce command? https://youtu.be/xY9r9SoUzw4?t=169 -- https://youtu.be/xY9r9SoUzw4?t=169
23:44
Concat video too long ffmpeg - Reckless Velociraptor Newest 'ffmpeg' Questions - Stack Overflow

I have similar problem to this guy After merge videos, the duration is too long - ffmpeg but I have no idea how to make videos same format 1 video: > Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'outputhigh.mp4': Metadata: > major_brand : isom > minor_version : 512 > compatible_brands: isomiso2avc1mp41 > encoder : Lavf58.10.100 Duration: 00:03:14.96, start: 0.000000, bitrate: 110 kb/s > Stream #0:0(und): Video: h264 (High 4:4:4 Predictive) (avc1 / 0x31637661), y uvj444p(pc), 816x456 [SAR 1:1 DAR 34:19], 108 kb/s, 25 > fps, 25 tbr, 12800 tbn, 5 0 tbc (default) > Metadata: > handler_name : (...)
23:16
Unable to run command through Java, but can run it through cmd CreateProcess error=2, The system cannot find the file specified - Al G Johnston Newest 'ffmpeg' Questions - Stack Overflow

I am unable to convert my mp3s to wavs for easier data manipulation using Java. I can open a command prompt and copy the exact string stored in s when I debug and this will properly create the wav file. The code is below. I was able to use ffmpeg by building strings this way to split up a few mp3s into separate tracks based on a tracklist. I reinstalled Windows 10, so I'm assuming it has something to do with that. Is there a setting I have to change? Why would it run in the command prompt, but not with Java? package mp3towav; import java.io.File; import java.io.IOException; public class (...)
22:22
FFMPEG RTSP issue - Joshua G Newest 'ffmpeg' Questions - Stack Overflow

So I am trying to stream an EZVIZ camera using FFMPEG. I am able to connect to the camera but when setting a duration like 5 or 10 seconds I get videos of random lengths (7, 5, 10, 30, etc). Sometimes the videos generated are black, sometimes green (though I can see the outlines of things and parts of the timestamp when it is green). I also get videos that show a length say 3 mins or so but they play ulta-fast, like a 3 min video plays in a millisecond and they are all black. Below is the log. Any help would be great! ./ffmpeg.exe -err_detect ignore_err -rtsp_transport tcp -i (...)
21:22
Add file name to video (drawtext) - Cannot find a valid font for the family Sans Error Ffmpeg [duplicate] - Oli Shingfield Newest 'ffmpeg' Questions - Stack Overflow

This question already has an answer here: FFmpeg drawtext - Could not load fontface from file [closed] 4 answers I have a folder with a couple of short videos in, I would like to add the file names of the videos in the video in the bottom right corner while converting them from mov to mp4. I have tried using: ⓐecho off set "INPUT=E:\\Users\\Oli Shingfield\\Documents\\Projects\\v1.3.1\\downloads3" for %%a in ("%INPUT%\\*.mov") do ( ffmpeg -i "%%~a" -vf drawtext=text="%%~na":x=105:y=120:fontfile="E:\\Users\\Oli Shingfield\\Documents\\Projects\\v1.3.1\\downloads3\\impact.ttf":fontsize=25:fontcolor=white (...)
20:40
How to replace the video track of a part of a video file? - yukashima huksay Newest 'ffmpeg' Questions - Stack Overflow

I have an mp4 file like this(same format but longer): Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'N1.2.mp4': Metadata: major_brand : mp42 minor_version : 0 compatible_brands: mp42mp41 creation_time : 2018-10-31T13:44:21.000000Z Duration: 00:28:54.21, start: 0.000000, bitrate: 10295 kb/s Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080, 9972 kb/s, 50 fps, 50 tbr, 50k tbn, 100 tbc (default) Metadata: creation_time : 2018-10-31T13:44:21.000000Z handler_name : ?Mainconcept Video Media Handler encoder : AVC Coding Stream #0:1(eng): Audio: aac (LC) (mp4a / (...)
20:19
[FFMPEG]timeline editing for overlay filter, input source is not start from beginning [duplicate] - Kent Wood Newest 'ffmpeg' Questions - Stack Overflow

This question already has an answer here: FFMPEG - Overlay multipe videos over video at specified interval of time 1 answer Overlay a video on another video at specific time with FFmpeg 1 answer FFmpeg - Overlay one video onto another video? 1 answer I was trying to make a video editor, there is a 5s length video clip, I try to place it on a red background after 4 seconds command like this ffmpeg -i video1.mp4 -f lavfi -i color=c=red:s=640x480 ^ -filter_complex "[1][0]overlay=(W-w)/2:(H-h)/2:enable='between(t,4,8)'" ^ -t 10 output.mp4 i found the video has already played 4 seconds when (...)
19:09
Mutlicast via FFMPEG is generating distortion in images - APIS Newest 'ffmpeg' Questions - Stack Overflow

I am using the below command to publish a multicast stream from a RTMP stream : ffmpeg -re -i rtmp://192.168.64.5:1935/5c769d4d397e819/myStream.stream_720p -c:a copy -c:v copy -f mpegts 'udp://236.101.101.138:10001?ttl=255&pkt_size=1316' But this is generating distortion in images when playing back through VLC directly from the server's output Ethernet interface. Kindly are there any improvements that can be done to the command to improve the overall output video and remove those distortions ? Appreciate your help (...)
18:39
concealing 8160 DC, 8160 AC, 8160 MV errors in frame error in ffmpeg - Talia Newest 'ffmpeg' Questions - Stack Overflow

I have an mp4 video and I want to convert it to yuv. This video has some errors inside. I need to convert it to yuv because the target is getting PSNR between the distorted yuv and the original yuv. I am using FFmpeg for this purpose. I get several of the consecutive following error: [h264 ⓐ 0x1c0ce00] concealing 8160 DC, 8160 AC, 8160 MV errors in P frame [h264 ⓐ 0x1bce920] concealing 8160 DC, 8160 AC, 8160 MV errors in P frame [h264 ⓐ 0x1be2c80] concealing 8160 DC, 8160 AC, 8160 MV errors in P frame frame=14964 fps= 31 q=-0.0 size=45453150kB time=00:09:58.56 bitrate=622080.0kbit[h264 ⓐ (...)
17:42
Streaming video playlist from collection of identical mp4 files - user2746672 Newest 'ffmpeg' Questions - Stack Overflow

I am looking for a way to play/stream to browser tag a list of mp4 files (same size, bitrate, etc) without hickups in between the files. I am hoping the following approach would work: * convert mp4 files to m4s/m4v files * generate MPEG-Dash MPD file (xml) * stream MPD to dash player in browser Is this in any way possible? I am aware the m4s/m4v files need special headers and an entry file must be made somehow, and there you have my roadblock. Bottom-line is I want to avoid to concatenate the separate videos into one big video file and avoid the hick-ups you see when sequencing via a (...)
15:33
How to use FFMPEG -vframe in wordpress creates jpg then clean filename to have only single dot? - Mr.AX Newest 'ffmpeg' Questions - Stack Overflow

What is the best way to output jpg file from video file using FFMPEG avoiding file name to contain double dots resulting file being treated as non existent? My goal is to create a clean alternative solution to avoid making jpg extension file having double dots in its created filename, from its original video file (such as mp4). Below is the coding I'm currently using for video uploading via ffmpeg, creating an extra thumbnail file from its video file: // get the videos uploaded foreach ($videos as $video) if ($profile_author_id == $userid || current_user_can('level_10')) $imagebuttons (...)
15:16
ffmpeg dash Failed to open fragment of playlist 0 - user3787734 Newest 'ffmpeg' Questions - Stack Overflow

As I m using an external .mpd file path, as playlist get a refresh every 10 seconds but FFmpeg can't able to manage it out. after playing the remote .mpd file for 15 seconds it's saying. [dash ⓐ 000001bf4149bfc0] No longer receiving stream_index 0bitrate=1057.4kbits/s speed=0.801x [dash ⓐ 000001bf4149bfc0] No longer receiving stream_index 1 [https ⓐ 000001bf41dcb280] HTTP error 410 Gonee=00:00:18.06 bitrate=1937.1kbits/s dup=0 drop=2 speed=0.976x [dash ⓐ 000001bf4149bfc0] Failed to open fragment of playlist 0 ffmpeg -re -i "http://remotehost/test.mpd" -copy -f flv (...) -- http://remotehost/test.mpd
15:15
Does not work -hls_playlist in ffmpeg in the -dash section - jidckii Newest 'ffmpeg' Questions - Stack Overflow

I will use this assembly ffmpeg https://hub.docker.com/r/jrottenberg/ffmpeg/ ffmpeg version 3.4.1 Copyright (c) 2000-2017 the FFmpeg developers built with gcc 6.2.1 (Alpine 6.2.1) 20160822 I'm trying to do dash and hls at the same time. In the documentation from here http://ffmpeg.org/ffmpeg-all.html#dash-2 the key is: -hls_playlist hls_playlist Generate HLS playlist files as well. The master playlist is generated with the filename master.m3u8. One media playlist file is generated for each stream with filenames media_0.m3u8, media_1.m3u8, etc. those. mpd and m3u8 must be created at (...) -- https://hub.docker.com/r/jrottenberg/ffmpeg/, http://ffmpeg.org/ffmpeg-all.html#dash-2
15:14
FFMPEG UDP to DASH I am wondering if it could be written more efficiently? - c7borg Newest 'ffmpeg' Questions - Stack Overflow

I have the below working but it is quite cpu intensive I've just moved to ffmpeg 3.4 and was wondering if it could be written more efficently? The below takes a multicast stream from our local LAN avoids the choppy footage by using the scenecut then adjusts the audio with the async to keep it in time and uses the yadif to deinterlace to provide better quality. This command/script also trims the maximum number of segments otherwise with a live stream it would fill up the directory. If anyone has any improvements I'd much appreciate it I also add subtitles using -filter_complex (...)
15:13
How to merge mp4 audio dash fragment with another audio - mosvov Newest 'ffmpeg' Questions - Stack Overflow

I have 1 audio file from dash stream Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'file_191282-377206_header.mp4': Metadata: major_brand : iso6 minor_version : 1 compatible_brands: mp42dashmsdhmsixiso6avc1isom creation_time : 2016-04-29T11:04:26.000000Z Duration: 00:00:30.02, start: 14.997333, bitrate: 49 kb/s Stream #0:0(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 48 kb/s (default) Also in exiftool output: Movie Data Size : 180193 Movie Data Offset : 6388 I try to merge with another audio and save metadata info like Movie Data Size/Offset and start/duration time. I (...)
15:12
Livestreaming webinars from rtmp to DASH - Ramesh Navi Newest 'ffmpeg' Questions - Stack Overflow

I need to live-stream RTMP based video to the webpage, and the end result should be dynamic and adaptive (DASH). Below FFMPEG command works with single stream but it's not adaptive/no low-high selection options. ffmpeg -i rtmp://source.mysite.com/live/9 temp/manifest.mpd I need something like 1080p RTMP input and 240p, 360p, 480, 720p and 1080p output in single DASH manifest. Can somebody guide how can I have a stable/tamed, multi-bitrate adaptive result (...)
15:12
ffmpeg converting m4s to mp4 - Ibrahim Ozaeri Newest 'ffmpeg' Questions - Stack Overflow

I'm working on DASH, trying to optimize QoE for the end user. I had a video and encoded it using ffmpeg into different bitrates and everything is fine, and the video is playable using dash. What I want is to combine the received segments from the users into one m4s and convert that m4s to mp4. I tried a lot of ways in ffmpeg, but it always give me this error: [mov,mp4,m4a,3gp,3g2,mj2 ⓐ 0x9a9e500] could not find corresponding track id 1 [mov,mp4,m4a,3gp,3g2,mj2 ⓐ 0x9a9e500] could not find corresponding trex [mov,mp4,m4a,3gp,3g2,mj2 ⓐ 0x9a9e500] error reading header test2.m4s: Invalid (...)
15:11
How to create multi bit rate dash content using ffmpeg dash muxer - andrii Newest 'ffmpeg' Questions - Stack Overflow

ffmpeg documentation says that we can use dash muxer to create dash segments and manifest file with just a single command, like: ffmpeg -re -i -map 0 -map 0 -c:a libfdk_aac -c:v libx264 -b:v:0 800k -b:v:1 300k -s:v:1 320x170 -profile:v:1 baseline -profile:v:0 main -bf 1 -keyint_min 120 -g 120 -sc_threshold 0 -b_strategy 0 -ar:a:1 22050 -use_timeline 1 -use_template 1 -window_size 5 -adaptation_sets "id=0,streams=v id=1,streams=a" -f dash /path/to/out.mpd Saying I have some HD video file and I want this video to be available through DASH in different bit rates, so that clients can (...) -- documentation
15:09
Concatenate DASH audio and video to single file - Andreas Newest 'ffmpeg' Questions - Stack Overflow

First of all, I have a folder with about 200 video and audio segments (m4v and m4a) of a video that was live streamed as DASH video. Now - without having the original file - I want to concatenate those parts to a single, playable video file. To mention what I already tested: concatenate via the Unix terminal command cat; unfortunately this won't help to make the video playable in any media player again using ffmpeg's merge abilities via files.txt; with the same unsuccessful result I'm definitely not an expert (otherwise I probably wouldn't ask) but the problem may be also the missing (...)
15:05
ffmpeg dash Segment offset - inkubux Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to integrate live-transcoding like "plex" or "emby" with my application. I am able to serve dash content over to shaka-player or dash.js but only in 'live-mode'. But I want to enable seeking through the player. I looked at plex and to enable this they create their own mpd file with duration so the player will have a full seekbar. However when seeking the player will ask for a segment number eg: 449. I need to stop ffmpeg and restart with an offset (-ss >), but ffmpeg will just restart a transcode session from segment 0 with an initial segment. What I want is to tell ffmpeg (...)
15:05
Using ffmpeg to generate dash manifest and it cannot be played by dash.js - Punkhead Newest 'ffmpeg' Questions - Stack Overflow

I'm using ffmpeg to encode incoming stream via rtmp protocol, the code as following: ffmpeg -re -i rtmp://localhost:1935$StreamPath -use_timeline 1 / -use_template 1 -window_size 10 -min_seg_duration 5000 -f dash out.mpd The manifest looks like this: When I try to play it on dash.js player, a error occured: [112] Parsing complete: ( xml2json: 3.50ms, objectiron: 1.76ms, total: 0.00526s) Debug.js:127 [116] SegmentTimeline detected using calculated Live Edge Time Debug.js:127 [118] MediaSource attached to element. Waiting on open... Debug.js:127 [119] Manifest has been refreshed at Tue (...)
15:05
FFMPEG - VP9 - Fail to create DASH manifest file - Lev Bein Newest 'ffmpeg' Questions - Stack Overflow

Can't create manifest.mpd file with FFMPEG. It writes: Stream mapping: Stream #0:0 -> #0:0 (copy) Stream #1:0 -> #0:1 (copy) Could not write header for output file #0 (incorrect codec parameters ?): Invalid data found when processing input My code to generate manifest is: ffmpeg \\ -f webm_dash_manifest -live 1 -i video720.hdr \\ -f webm_dash_manifest -live 1 -i audio128.hdr \\ -map 0 -map 1 -c copy \\ -f webm_dash_manifest -y -live 1 -adaptation_sets "id=0,streams=0 id=1,streams=1" \\ -chunk_start_index 1 -chunk_duration_ms 2000 -time_shift_buffer_depth 7200 -minimum_update_period 7200 (...)
15:03
MP4 to DASH (bash script) - Francesco Galgani Newest 'ffmpeg' Questions - Stack Overflow

I have a web site in which users can upload video files. I want to stream all of them using DASH to obtain an adaptive bitrate streaming. So I wrote a bash script (to run by cron) that converts all mp4 files to DASH, but it doesn't work properly: what is wrong? For example, using the following script, I obtained: https://www.informatica-libera.net/dash_faq/stream.mpd It validates, but it doesn't play. I tested it on: http://dash-mse-test.appspot.com/dash-player.html?url=https%3A%2F%2Fwww.informatica-libera.net%2Fdash_faq%2Fstream.mpd&autoplay=on&adapt=auto&flavor= Thank you (...) -- https://www.informatica-libera.net/dash_faq/stream.mpd, http://dash-mse-test.appspot.com/dash-player.html?url=https%3A%2F%2Fwww.informatica-libera.net%2Fdash_faq%2Fstream.mpd&autoplay=on&adapt=auto&flavor=

Revisions : saisies http://zone.spip.org/trac/spip-zone/log/_plugins_/saisies

16:26
Revision 114564: Correction du libellé, et ajout d'une option multiple dans le .yaml, ... - root Revisions : saisies

Correction du libellé, et ajout d'une option multiple dans le .yaml, pour pouvoir utiliser des checkboxes -- Log
16:13
Revision 114563: Possibilité d'afficher un label à droite et à gauche de la liste de ... - nicodⓐ… Revisions : saisies

Possibilité d'afficher un label à droite et à gauche de la liste de choix, pour indiquer entre quoi et quoi on choisit une valeur (exemple : "Je suis content 1 2 3 4 5 J'en ai gros") -- Log
05:39
Revision 114552: [Salvatore] [source:_plugins_/saisies/trunk/lang/ saisies] Export ... - maieulⓐ… Revisions : saisies

[Salvatore] saisies Export depuis http://trad.spip.net de la langue nl -- Log

Revisions : verifier http://zone.spip.org/trac/spip-zone/log/_plugins_/verifier

20:35
Revision 114566: Ne pas oublier de faire un up de plugin.xml quand il y en a un, car, ... - root Revisions : verifier

Ne pas oublier de faire un up de plugin.xml quand il y en a un, car, c'est le même plugin -- Log

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

17:33
Evolution #3973: Brancher inc/distant recuperer_url() sur une librairie récente Revisions : SPIP

Il me semble que Guzzle est relativement connu et utilisé pour ce genre de circonstance (et permettrait bien d’autres choses) http://docs.guzzlephp.org/en/stable/ (et même du json http://docs.guzzlephp.org/en/stable/request-options.html#json)

Revisions : verifier http://zone.spip.org/trac/spip-zone/log/_plugins_/verifier

16:58
Revision 114565: Verification des numeros de telephone : * rendre la verification par ... - cedricⓐ… Revisions : verifier

Verification des numeros de telephone : * rendre la verification par pays extensible : quand un pays est pas prevu par le plugin on peut fournir son indicatif en option et une fonction de verification * reparer la verification des numeros ES : le remplacement du prefixe international par un 0 est abusif ca rend certains numeros invalides - on se contente de normaliser le prefixe * ajouter la verification des numeros belges qui sont des utilisateurs de SPIP comme les autres francophones (...) -- Log

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

15:02
Evolution #3973: Brancher inc/distant recuperer_url() sur une librairie récente - cedric - Revisions : SPIP

Pour les datas, il faut faire de la conversion de format si besoin. Je note ici pour mémoire et test de support d'un cas d'utilisation du format string pour poster du JSON vers une API qui attend un format json : https://zone.spip.net/trac/spip-zone/browser/spip-zone/_plugins_/mailshot/trunk/lib/mailjet-api-php/mailjet-3.php#L116

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

01:22
Java execute ffmpeg commands with (pipe) "... -f nut - | ffmpeg -i - ..." just hangs - user3776738 Newest 'ffmpeg' Questions - Stack Overflow

I can't get this to run,because java just waits for ffmpeg. But ffmpeg doesn't give an input- nor an error stream. It just runs, but doing nothing. The output of "System.out.println("command:.." insert into bash just runs fine as expected.So there is nothing wrong with the ffmpeg syntax. Here's the code. package mypackage; import java.awt.image.BufferedImage; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import javax.imageio.ImageIO; /** * * ⓐauthor test */ public class ffmpeg_hang /** * ⓐparam args the command line arguments */ public (...)
00:47
How to initiate a class object out of a Dictionary with Lambda/LINQ, parsed by Newtonsoft.Json? - Hassanslaw Newest 'ffmpeg' Questions - Stack Overflow

since yesterday I tried to implement ffmpeg via Xabe-Wrapper in my C#-Project. I used FFMpeg => FFProbe to get Format and Stream data as a json-string from some movies. This is the json I got for the Streams. " "streams": [ "codec_name": "mpeg4", "codec_type": "video", "codec_name": "mp3" , "codec_type": "audio" ] " Follow thing the Newtonsoft Wiki, I deserialized it as a DataSet. I started playing around and found a way to do this in a "oneliner". Streams = (JsonConvert.DeserializeObject(StreamProbeJSON, JSerializerSettings)).Tables["streams"].AsEnumerable().Select(value => new (...) -- Wiki, Wiki

17 mars

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

23:07
FFmpeg h265 encode->decode, c++ - jmg Newest 'ffmpeg' Questions - Stack Overflow

Hi I already have some working encoding and direct decoding code for h264. I'm trying to adapt the code to work with h265 but I'm doing something wrong with the decoding since I always get the error message: [hevc ⓐ 0x78eca0] PPS id out of range: 0 [hevc ⓐ 0x78eca0] Error parsing NAL unit #0. Decoding Init: decoder = avcodec_find_decoder(AV_CODEC_ID_H265); ctx = avcodec_alloc_context3(decoder); ctx->extradata = NULL; ctx->width = 400; ctx->height = 256; ctx->pix_fmt = AV_PIX_FMT_YUV420P; avcodec_open2(ctx,decoder,NULL); Encoding, seems ok, since I only work with small videos I only get (...)
21:38
ffmpeg concatenate 3 videos with crossfade - Crikey Mikey Newest 'ffmpeg' Questions - Stack Overflow

Im trying to join 3 videos together with a crossfade effect. I can get this working for 2 videos (sourced from stackoverflow but cant find the link): ffmpeg -y -i part1.mp4 -i part2.mp4 -f lavfi -i color=black:s=1920x1080 -filter_complex \\ "[0:v]format=pix_fmts=yuva420p,fade=t=out:st=10:d=1:alpha=1,setpts=PTS-STARTPTS[va0]; \\ [1:v]format=pix_fmts=yuva420p,fade=t=in:st=0:d=1:alpha=1,setpts=PTS-STARTPTS+10/TB[va1]; \\ [2:v]trim=duration=20[over]; \\ [over][va0]overlay[over1]; \\ [over1][va1]overlay=format=yuv420[outv]" \\ -vcodec libx264 -map [outv] merged.mp4 But cant work out how to make (...)
20:35
ffmpeg 2 pass encoding on aws Lamba - boblapointe Newest 'ffmpeg' Questions - Stack Overflow

I'm doing a 2 pass encoding with ffmpeg on AWS Lambda. Ffmpeg needs to create a temporary log file on first pass, that is used on the second pass. Since Lambda allows write operations only in "/tmp/", I get the following expected error: Cannot write log file 'ffmpeg2pass-0.log' for pass-1 encoding: Read-only file system How can I force ffmpeg to write the log file in a specific directory ? -passlogfile doesn't seem to do the trick.
19:49
Download TS files from video stream - Nicky Smits Newest 'ffmpeg' Questions - Stack Overflow

Videos on most sites make use of progressive downloading, which means that the video is downloaded to my computer, and easy to trace. There are lots of extensions out there to do this, and even in the dev-tools this is easily done. On certain websites videos are streamed. which means that we do no just download 1 file, we download lots of small packages. In the dev-tools these packages can be traced. The website I'm interested in is: http://www.rtlxl.nl/#!/goede-tijden-slechte-tijden-10821/c8e2bff7-5a5c-45cb-be2b-4b3b3e866ffb. The packages have a .TS extension. Packages can be saved by (...) -- http://www.rtlxl.nl/#!/goede-tijden-slechte-tijden-10821/c8e2bff7-5a5c-45cb-be2b-4b3b3e866ffb
19:26
Simulating TV noise - Alexander Kulyakhtin Newest 'ffmpeg' Questions - Stack Overflow

I have googled a bit but was never able to find an answer. What should be my first approach to simulate a video and audio noise from TV on screen? I mean, when my TV antenna is removed but the TV is still on (like they show in Japanese horror movies sometimes). I can use ffmpeg or any other technique but what is the simplest possible form of the signal?

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

18:25
Révision 114549: Un oups up de z pour la route ! - ericⓐsmellup.net Revisions : SPIP
18:24
Révision 114548: Correction de la fonction de comptage qui ne prenait pas en compte le fait que d... - ericⓐsmellup.net Revisions : SPIP

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

19:05
[FFMPEG]how to merger video clips into one output stream with timeline editing? - Kent Wood Newest 'ffmpeg' Questions - Stack Overflow

I was trying to make a video editor, there are 2 short video clips, both duration are only 5 seconds. I placed a red background and set duration to 10s, then i placed video1 to 0-4s, placed video2 to 4-8 command like this ffmpeg -i video1.mp4 -i video2.mp4 --complex_filter ^ "color=c=red:s=640x480:duration=12[out],^ [out][1]overlay=(W-w)/2:(H-h)/2:enable='between(t,4,8)'[out],^ [out][0]overlay=(W-w)/2:(H-h)/2:enable='between(t,0,4)'[out]" output.mp4 my thought is all video clips is as overlays on the red background, which exist all time, and be the first output, then, each video clip (...)
18:35
downloading mp4 video with ffmpeg produces error - user892134 Newest 'ffmpeg' Questions - Stack Overflow

I want to download a mp4 video from a url using ffmpeg. Here is my command: /usr/bin/ffmpeg -i 'https://hw16.cdn.asset.aparat.com/aparat-video/249306bba122103d1be6c98f53c4ce5e14166523-720p__77667.mp4' '/home/example/public_html/test/mycron/videos/5c8e7ec5c722b.mp4' I attempted but get this error Error opening filters! I tried this command also: /usr/bin/ffmpeg -i 'https://hw16.cdn.asset.aparat.com/aparat-video/249306bba122103d1be6c98f53c4ce5e14166523-720p__77667.mp4' -c:v libx264 -c:a copy '/home/example/public_html/test/mycron/videos/5c8e7ec5c722b.mp4' And get this error: Error (...)
15:16
get metadata and download mp4 video link to server with ffmpeg - user892134 Newest 'ffmpeg' Questions - Stack Overflow

I have the following directory in server /home/example.com/videos I want to download this video http://example.com/videos/video.mp4 into the directory. First how do i get metadata of http://example2.com/videos/video.mp4? Here is my command to download video, is it correct? ffmpeg -i "http://example2.com/videos/video.mp4" -c copy "/home/example.com/videos/video2.mp4" Lastly, how do i determine if video has downloaded or didn't finish downloading (...)
15:09
issue in converting a stream of images that is jittery and lossy into a video (using ffmpeg or otherwise) - ksridhar Newest 'ffmpeg' Questions - Stack Overflow

i have a program that is the source for png images that are sent out on its stdout. this program is prone to lose images as well have jitter (not deliver them on time precisely i.e. 25 frames/sec). i tried the following with ffmpeg image_streamer.sh | ffmpeg -vcodec png -i - -vf fps=25 -vcodec libx264 -y foo.mp4. it was noticed that (a) when the input rate was wavering around 25 frames/sec with no drops the mp4 file was created fine but when (b) there were drops by the image_streamer.sh the fps filter did not duplicate images. i understand that there is no pts information in this case. (...) -- https://ffmpeg.org/pipermail/ffmpeg-user/2012-December/011855.html
12:53
Generating Bitmap animation frames with transition effect - Behnam Maboudi Newest 'ffmpeg' Questions - Stack Overflow

I have 2 different bitmaps. I want to generate more bitmap frames from my bitmaps with custom transition effects (like fade , curl , scale , etc ...). something like animation. generated frames must be bitmap too (not just view animation). My final goal is to merge all this bitmaps into a video file using ffmpeg. i already know ffmpeg part. but i don't know how to generate transition effect frame. And also i know ffmpeg has some builtin transition effects but it's too slow to generate preview video. How can i do this? please give me some clues. Is there any useful library to generate (...)
02:32
FFmpeg Live Stream - Loop Video? - Dread-Eye Newest 'ffmpeg' Questions - Stack Overflow

I am trying to stream a video loop to justin.tv using FFmpeg? I have managed to loop an image sequence and combine it with line in audio: ffmpeg -loop 1 -i imageSequence%04d.jpg -f alsa -ac 2 -ar 22050 -ab 64k \\ -i pulse -acodec adpcm_swf -r 10 -vcodec flv \\ -f flv rtmp://live.justin.tv/app/ Is it possible to do this with a video file?

16 mars

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

03:55
avcodec/libdav1d: reset pool size on allocation failure - James Almer git.videolan.org Git - ffmpeg.git/rss log

avcodec/libdav1d: reset pool size on allocation failure Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavcodec/libdav1d.c

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

22:00
Error: No such filter: '"movie', what's the isssue? - uno Newest 'ffmpeg' Questions - Stack Overflow

I am using the code to add watermarks to videos on upload for carrierwave-video: process encode_video: [:mp4, resolution: "640x480", watermark: path: "app/assets/images/logo-nike.jpg", position: :bottom_right, pixels_from_edge: 10 ] When i use this code, i get error: (in short) Stream mapping: Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264)) Stream #0:1 -> #0:1 (aac (native) -> aac (native)) Press [q] to stop, [?] for help [AVFilterGraph ⓐ 0x55c8909bf180] No such filter: '"movie' Error reinitializing filters! Failed to inject frame into filter network: Invalid argument Error while (...)
19:26
C++ ffmpeg library framerate incorrect when muxing - therex Newest 'ffmpeg' Questions - Stack Overflow

I am trying to create a function which will combine an audio file and a video file and output them to an mp4. I've managed to successfully do so except that the output is not at the correct framerate. It's a very slight difference from the original. 30.13 whereas it should be 30 exactly. When I combine these files with the ffmpeg program, the result is exactly 30 as it should be. I'm confident it has something to do with the dts/pts correction when recieving out of order data, but ffmpeg program does this too in a similar manner. So I'm not sure where to go from here. I've looked at the (...)
17:09
How to start music at a specific time - INeed ADollar Newest 'ffmpeg' Questions - Stack Overflow

I want to start a song file at a specific time with ffmpeg in python and I don't know if this is possible. I make a discord bot and I want to make a command about this. Thank you for any help!

Revisions : saisies http://zone.spip.org/trac/spip-zone/log/_plugins_/saisies

11:04
Revision 114518: On fait pointer le lien de doc vers l'article de base plutôt que la ... - ericⓐ… Revisions : saisies

On fait pointer le lien de doc vers l'article de base plutôt que la rubrique afin de récupérer le flux rss des messages -- Log
05:39
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[Salvatore] saisies Export depuis http://trad.spip.net -- Log

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

12:43
doc/ffmpeg: add entry for itsscale - Gyan Doshi git.videolan.org Git - ffmpeg.git/rss log

doc/ffmpeg: add entry for itsscale [DH] doc/ffmpeg.texi

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

09:11
ffmpeg convert video in a path with different name - tour travel Newest 'ffmpeg' Questions - Stack Overflow

Using ffmpeg in php with shell_exec and want to convert video in a path that different with where script is run. php script is in /s/m/video.php: And this script called by ajax in /s/a/index.php: $.ajax( url: "/s/m/video.php?videoTools", type: "GET", data: vid: json[0], uid: json[1], user: json[2], success: function(data) // success ); And for example I want to convert video in this path /s/uploads/91/768/2019-2-2_668-vid.mp4 Problems: This not working, because look like ffmpeg not find video and logo in a path / Also look like ffmpeg not accepet video with - or _ or etc. No related (...)
08:51
Opencv Videocapture fails to read http url videos - Purav Zumkhawala Newest 'ffmpeg' Questions - Stack Overflow

I want to read HTTP URL videos in my Ubuntu system without downloading them. I can do this in windows OS but when I try to run the same code in Ubuntu using the same opencv VideoCapture method it fails to get any frames. Why is this so? I have used same opencv version in both Ubuntu and Windows, can anyone guide me towards a workaround, a tutorial using which I can compile opencv and stream url videos or any other library that supports this functionality in Ubuntu ? I have tried almost everything but with no productive result which has led me to finally ask this as a question. opencv (...)
06:57
Combining Filters with Normal Options - Matt McManis Newest 'ffmpeg' Questions - Stack Overflow

What is the difference between using an option as a Filter vs a Normal option? Should I always use Filters instead of Normal options when possible? Will they still work if you combine them together? Or should you use always use related ones together with their same method? Examples Scale and Algorithm All Filters -vf "scale=-2:720:flags=lanczos" Filter Scale, Normal Algorithm -vf scale=-2:720 -sws_flags lanczos Aspect Ratio SAR and DAR All Filters -vf "setsar=1:1,setdar=4:3" Filter SAR, Normal Aspect -vf setsar=1:1 -aspect 4:3 Pixel Format and Quality Filter Pixel Format, Normal (...)
00:56
ffmpeg split audio and silences in a files, and replace the silences by custom silences - fireDevelop.com Newest 'ffmpeg' Questions - Stack Overflow

I have hundreds of podcast without music, just the voice and the room silence. In the silences, I have many clicks, respirations, etc... I need to clean all silences with a script, keeping intact the voice. In this picture you can see my dirty silences And here the result I want in all my audios When I use some scripts of sox. I don`t get the result I spect because the voice is affected by the script, the room-silence disappear and some clic still in the silences. Then in order to keep intact the voice, I want to do this: Delete all the silences longer than 3 seconds. Split all the (...) -- dirty silences, I want in all my audios

15 mars

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

01:30
tools/target_dec_fate.list: add issues 4000 to 6000 - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log

tools/target_dec_fate.list: add issues 4000 to 6000 Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] tools/target_dec_fate.list
01:14
lavc/qtrle: Avoid an unaligned 64-bit write. - Carl Eugen Hoyos git.videolan.org Git - ffmpeg.git/rss log

lavc/qtrle: Avoid an unaligned 64-bit write. pixel_ptr can be increased by 4. Fixes a crash on sparc64. [DH] libavcodec/qtrle.c [DH] libavcodec/version.h
00:52
lavf/sdp: Change pointer to configuration from char* to uint8_t*. - Carl Eugen Hoyos git.videolan.org Git - ffmpeg.git/rss log

lavf/sdp: Change pointer to configuration from char* to uint8_t*. This is also what av_base64_encode() expects. Fixes the following warnings with clang: libavformat/sdp.c:394:40: warning: implicit conversion from 'int' to 'char' changes value from 254 to -2 libavformat/sdp.c:395:40: warning: implicit conversion from 'int' to 'char' changes value from 205 to -51 libavformat/sdp.c:396:40: warning: implicit conversion from 'int' to 'char' changes value from 186 to -70 [DH] (...)

Revisions : saisies http://zone.spip.org/trac/spip-zone/log/_plugins_/saisies

18:53
Revision 114498: target=blank pour le liens vers la doc d'afficher_si, sinon on peut ... - root Revisions : saisies

target=blank pour le liens vers la doc d'afficher_si, sinon on peut perdre des choses -- Log

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

21:22
Node fluent-ffmpeg killing process kills server - How to start and stop recorder? - Scorpio Newest 'ffmpeg' Questions - Stack Overflow

I'm using fluent-ffmpeg in a node application. Recording from the screen/camera to an mp4 file. Would like a server request to start and another request to stop recording (links to a web interface - testing some tech with a view to making an Electron App later with it). Starting is fine, but cannot figure out how to stop it. This is the code to start (to run on MacOS): recordingProcessVideo = ffmpeg(`$screenID:none`) .inputFormat('avfoundation') .native() .videoFilters(`crop=$width:$height:$x:$y`) .save(filePath); This is what I thought would stop it from documentation and reading (...)
20:28
define ffmpeg binaries path dynamically in php depending on OS - Hue Man Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to define the ffmpeg binaries path dynamically in php depending on OS... Here's my code: // Check if OS is Windows if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') $OS = 'win'; // 'This is a server using Windows!'; require ABSPATH . '/vendor/autoload.php'; if($OS == 'win') $ffmpegpath = ABSPATH . 'FFMpeg/bin/ffmpeg.exe'; $ffprobepath = ABSPATH . 'FFMpeg/bin/ffprobe.exe'; $ffmpeg = FFMpeg\\FFMpeg::create(array( 'ffmpeg.binaries' => $ffmpegpath, 'ffprobe.binaries' => $ffprobepath, 'timeout' => 3600, // The timeout for the underlying process 'ffmpeg.threads' => 12, // The (...)
19:31
How to configure ffmpeg with libsrt (Secure Reliable Transport) protocol? - Developer Newest 'ffmpeg' Questions - Stack Overflow

I want to configure ffmpeg with libsrt (Secure Reliable Transport) protocol on linux-Ubuntu OS, I followed the steps from this link But when run $./configure --enable-libsrt command it gives me an error: ERROR: srt >= 1.3.0 not found using pkg-config I modified the configuration file, it executed the above command but when i run $ make command it end up with the following errors: LD ffmpeg_g libavformat/libavformat.so: undefined reference to `srt_socket' libavformat/libavformat.so: undefined reference to `srt_bind' libavformat/libavformat.so: undefined reference to `srt_getsockopt' (...)
19:19
SoX - Remove noise only in silences - fireDevelop.com Newest 'ffmpeg' Questions - Stack Overflow

Please, I need to clean ONLY the noise in the silences of hundreds podcast, NOT in the audio voice. To do this I use this script: # First denoise audio ## Get noise sample ffmpeg -i in.wav -vn -ss 00:00:00 -t 00:00:01 noise-sample.wav ## Create noise profile sox noise-sample.wav -n noiseprof noise.prof ## Clean audio from noise sox in.wav clean.wav noisered noise.prof 0.21 # Split audio by noise sox -V3 clean.wav output.wav silence 1 0.2 0.4% 1 0.2 0.4% : newfile : restart ####### (these settings worked for my computer mic - maybe we need to finetune them later) ####### Here you can see (...) -- My audio
17:59
Capture video using FFMPEG without frozen image effect - Nehemia Newest 'ffmpeg' Questions - Stack Overflow

Anyone could help me? Have been trying to record video from an RTSP server using FFMPEG but somehow the video result has many frozen images (couldn't be used for any people detection) - the people look similar to this: Here is the code I used: ffmpeg -i rtsp://10.10.10.10/encoder1 -b:v 1024k -s 640x480 -an -t 60 -r 12.5 output.mp4 What I have done so far? - Recorded the video in smaller dimension instead of original one - No audio and lower FPS - Even only record from two IP sources on a machine But still didn't get any luck yet. Anyone ever experience (...) --
17:56
What's FFmpeg doing with avcodec_send_packet()? - Jim Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to optimise a piece of software for playing video, which internally uses the FFmpeg libraries for decoding. We've found that on some large (4K, 60fps) video, it sometimes takes longer to decode a frame than that frame should be displayed for; sadly, because of the problem domain, simply buffering/skipping frames is not an option. However, it appears that the FFmpeg executable is able to decode the video in question fine, at about 2x speed, so I've been trying to work out what we're doing wrong. I've written a very stripped-back decoder program for testing; the source is here (...) -- here
15:43
error ffmpeg Cannot open display :0.0+0,0, error 1. :0.0+0,0: Input/output error - SUPERMAN Newest 'ffmpeg' Questions - Stack Overflow

Hello I get this error when i want to capture my screen on linux with ffmpeg ubuntu 16:04 : the command i'am using : $ ffmpeg -f x11grab -r 15 -s 1920x1080 -i :0.0+0,0 -vcodec rawvideo -pix_fmt yuv420p -threads 0 -f v4l2 /dev/video0 ffmpeg version 4.1.1-0york1~16.04 Copyright (c) 2000-2019 the FFmpeg developers built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.11) 20160609 configuration: --prefix=/usr --extra-version='0york1~16.04' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping (...)
14:57
ffmpeg convert one png to DNxHD - bcvery1 Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to create a DNxHD file from one PNG file. The output should be "24000/1001" fps, 1920x1080, using the dnxhd codec. Every frame should be the same. The outputted stream must be 20 seconds in length. I have a solution which uses filter_complex to loop the PNG for each frame, however this results in extremely large files. Given that I will be combining possibly multiple hundred DNxHD files into one AAF file, the output file size is too large. Is there any improvement I can make on the command below which would achieve this file size reduction? ffmpeg -i INFILE.png -y -nostdin (...)
12:14
How to preview the ffmpeg command line while using ffmpeg-python - fmagno Newest 'ffmpeg' Questions - Stack Overflow

Let's say I implement the following python script that uses ffmpeg-python: # facetime.py import ffmpeg ffmpeg \\ .input( 'FaceTime', format='avfoundation', pix_fmt='uyvy422', framerate=30 ) \\ .output( 'out.mp4', pix_fmt='yuv420p', vframes=100 ) \\ .run() Is there a mechanism to print to the stdout the corresponding ffmpeg command that will be executed? -- ffmpeg-python
10:35
How to change audio frame rate in FFMPEG? - Sasidharan S Newest 'ffmpeg' Questions - Stack Overflow

I am trying to change audio frame from 43.066 FPS (1024 SPF) to 23.438 FPS (2048 SPF) but no luck. code tried : ffmpeg -i 1.mp4 -b:v 2000k -vcodec libx264 -x265-params keyint=50:scenecut=0 -preset fast -pix_fmt yuv420p -profile:v main -level 3.1 -r 25 -s:v 1280x720 -ac 2 -c:a aac -b:a 128k -ar 48000 -aframes 23.438 HD2_500_500.mp4 Error : Expected int64 for frames:a
10:05
how to make one file from multi inputs using FFmpeg? - rura6502 Newest 'ffmpeg' Questions - Stack Overflow

I want to make FFmpeg application that reads the multiple streaming sources and then opens the streaming server (so that clients can connect to server). However, my FFmpeg's resources are slow and every media resources have different speed. I found one good FFmpeg application example(exe, mfc) that collects multiple streaming sources and then open the TCP streaming server. When this application is executed, it does the following: running the FFmpeg as many as the sources. from every FFmpeg it creates only one dummy file (problem: this file size is always 0kb) this is my guess. because I (...)
10:05
Quantization parameter value of each macroblock in a given frame with ffmpeg - Enock Newest 'ffmpeg' Questions - Stack Overflow

Can someone tell me what is the libav structure element or function that can give me the quatization parameter value of each macroblock in a frame, please? I need for these values. Since macroblock is not a structure I don't know how to have the quantization parameter value associated to each MB in a given frame. Plesase, help me.
10:00
waveforms arent as smooth as they should be - GROVER. Newest 'ffmpeg' Questions - Stack Overflow

So I've been trying to create a little clone of SoundClouds 'peaks' waveform. I have noticed that their waveforms are a lot more streamlined compared to my sudden shifts in 'loudness'. The dynamic range between peaks never seems to be too steep, and they always represent the perceived loudness of each part of the track pretty well. Here's an example: Notice how all the 'drops' are fairly distinguishable to the 'breakdowns' in their waveform, but mine is all over the place (apart from the last drop and breakdown, which are kind of similar). There are some minor similarities, but the (...) -- , wav2json
09:13
How to concatenate two MP4 files using FFmpeg? - Mark L Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to concatenate two mp4 files using ffmpeg. I need this to be an automatic process hence why I chose ffmpeg. I'm converting the two files into .ts files and then concatenating them and then trying to encode that concated .ts file. The files are h264 and aac encoded and I'm hoping to keep the quality the same or as close to original as possible. ffmpeg -i part1.mp4 -vcodec copy -vbsf h264_mp4toannexb -acodec copy part1.ts ffmpeg -i part2.mp4 -vcodec copy -vbsf h264_mp4toannexb -acodec copy part2.ts cat part1.ts part2.ts > parts.ts ffmpeg -y -i parts.ts -acodec copy -ar 44100 -ab (...)
08:05
How can i use exiftool ffmpeg and python to create a script that collects videos/images and puts them in a sequence? - David G Newest 'ffmpeg' Questions - Stack Overflow

Hey all I am rather new to scripting in python and am looking for some help with a script that i am working on. the script i have in python uses exiftool to read metadata in video and image files however i need it to go further where it uses my input of some keywords that it searches the meta data for then copies the videos to another directory and then links them together in ffmpeg ready for me to make detailed edits in Premier Pro eg: my input will be keywords = ("Opening", "part01", "part02", "ending")etc... description = ("date", "client")etc... then the script will find the videos (...)
08:02
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 is streamed by VLC media player. Example (...)
07:57
RTSP to RTMP in iOS as Transcoding - Naman Sheth Newest 'ffmpeg' Questions - Stack Overflow

I am getting live feed from some IP camera as an RTSP url and then i want to convert it to RTMP. Here is two aspects that we have to implement What we convert from RTSP to RTMP is transcoding. I have my iPad/iPhone Camera that user can switch and add live feed to RTMP url at this point I want to stop RTSP feed. i.e. Encoding This all scenario want to do with FFMPEG I have searched on this url but not able to figure out in iOS ffmpeg -i "[your rtsp link]" -f flv -r -s -an "[Your rtmp link]" RTSP to RTMP streaming Thanks in Advance (...)
07:33
get audio current freqency for each 0.1 second of audio file with ffmpeg sox or opus into file.txt - Vlad Newest 'ffmpeg' Questions - Stack Overflow

I am trying to get audio freqency statistic from call record in file.opus for each 0,1 second, have try ffmpeg (spectrum) ffprobe , for example sox '.$file.' −n rate 6k spectrogram −z 62 -w Hamming -o aaaaaa/test10.png stat -freq 2>aaaaaa/test10.txt return spectrum all of them return values but no freqency found any other library ? Or what I am doing wrong I now it retrun spectrum but I need concrete freqency of human voice it is possible with ffmpeg or ffprobe or sox ? I am working in php but running shel comands any help will be aprisiatied. What should be my next step? I am lost I have (...)
05:54
error showing while reading the configuration of a P frame using ffmpeg - MSD Paul Newest 'ffmpeg' Questions - Stack Overflow

I tried to modify slightly the x264 encoder to write each P frame in a different file. Check the size of the P frame while encoding and filesize both matches properly and also write required headers to that Pframe. But while doing ffmpeg -i Pframe.mp4 Pframe.mp4 consists only a P frame. [NULL ⓐ 00000157a75d3380] [IMGUTILS ⓐ 0000000c8cdfebd0] Picture size 0x0 is invalid [h264 ⓐ 00000157a75d3380] Invalid NAL unit size (-30000 > 38081). [h264 ⓐ 00000157a75d3380] Error splitting the input into NAL units. While encoding I can see the NAL value and Units properly. Can anyone please tell me (...)

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

00:27
tests/fate/ffmpeg: Check for apng codec for fate-copy-apng. - Carl Eugen Hoyos git.videolan.org Git - ffmpeg.git/rss log

tests/fate/ffmpeg: Check for apng codec for fate-copy-apng. The file has to be created first, fixes fate without zlib. [DH] tests/fate/ffmpeg.mak
00:02
lavc/qtrle: Do not use aligned writes for 24bit frames. - Carl Eugen Hoyos git.videolan.org Git - ffmpeg.git/rss log

lavc/qtrle: Do not use aligned writes for 24bit frames. pixel_ptr is 3 and leads to aligned access on odd memory addresses. Fixes crashes on systems that do not allow unaligned access like sparc32. [DH] libavcodec/qtrle.c

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