11 November

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

• 20:46
  Concatenating audio files in ffmpeg two background one foreground - jcvamp Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to create a single audio file with Sound1.mp3 and Sound2.mp3 concatenated to make a single background track, and Sound3.wav played over the top in a separate track. I tried this code, but got the error 'Cannot find a matching stream for unlabeled input pad 3 on filter Parsed_concat_0'. ffmpeg.exe -t 1 -i Sound1.mp3 -t 1 -i Sound2.mp3 -t 0.5 -i Sound3.wav -filter_complex "[0:0][1:0][2:0]concat=n=3:v=0:a=2[out]" -map "[out]" output.mp3 -report
• 19:49
  FFmpeg encode packet duration always zero - Rich Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to learn to use the libav libraries from FFmpeg. I'm using the beamcoder wrapper for Node. I have a program that decodes an MP4 file and then tries to encode it to h264. The resulting packets from the encode step always have their duration set to zero. Any ideas why that would be? const beamcoder = require('beamcoder'); async function run() const dm = await beamcoder.demuxer('file:Video_001.mp4'); let videoStream = null; for (const stream of dm.streams) const codecpar = stream.codecpar; if (codecpar.codec_type === 'video') videoStream = stream; const videoDecoder = (...)
• 21:38
  How to convert audios without installing ffmpeg - Mohammad Hoodaji Newest 'ffmpeg' Questions - Stack Overflow
  I'm using a shared hosting. I need convert mp3 files to ogg files on my host, I asked its admins to install FFMpeg but they didn't do that! Is it possible convert mp3 to ogg/ogg to mp3 on my host by php? If yes please get me code examples or something!
• 20:55
  FFMPEG image to video with kenburns effect - Buu Newest 'ffmpeg' Questions - Stack Overflow
  I am new to FFMPEG and I kinda confused with their commands and options. So I googled some existing commands and found this: ffmpeg -y -loop 1 -i bgimage.png -ss 0 -t 5 -r 1 -loop 1 -i front.png -ss 0 -t 5 -filter_complex " [1:v] scale=w=1920:h=1080 [fg]; [0:v] scale=w=-2:h=3*1080 , crop=w=3*1920/1.2:h=3*1080/1.2:y=t*(in_h-out_h)/5, scale=w=1920:h=1080, setsar =1 [bg] ; [bg][fg]overlay=shortest=1[v] " -map "[v]" -c:v h264 -crf 18 -preset v eryfast pan_up.mp4 The only problem is effects becomes sluggish. I am trying to convert image to video with kenburns effects. Can you guys help me (...) -- https://trello-attachments.s3.amazonaws.com/545a93cff0b222f456c5ad82/5d8cfc0d75e80e63dae2fe6a/5a523ed328f24b0454c5c56cd0ee68e6/23442279.mp4
• 20:48
  How To Resize a Video Clip in Python - Seyed Ali Akhavani Newest 'ffmpeg' Questions - Stack Overflow
  I want to resize a video clip in python 2.7. For example we give "movie.mp4" with 1080p quality The result should be "movie.mp4" with 360p quality I Think that there should be solutions with Moviepy. If you know a solution with it. I would be grateful if you answer me.
• 19:36
  How can I extract audio from video with ffmpeg? - user1269669 Newest 'ffmpeg' Questions - Stack Overflow
  I tried the following command to extract audio from video: ffmpeg -i Sample.avi -vn -ar 44100 -ac 2 -ab 192k -f mp3 Sample.mp3 but I get the following output libavutil 50.15. 1 / 50.15. 1 libavcodec 52.72. 2 / 52.72. 2 libavformat 52.64. 2 / 52.64. 2 libavdevice 52. 2. 0 / 52. 2. 0 libavfilter 1.19. 0 / 1.19. 0 libswscale 0.11. 0 / 0.11. 0 libpostproc 51. 2. 0 / 51. 2. 0 SamplE.avi: Invalid data found when processing input Can anyone help, please?
• 19:27
  ffmpeg - generating thumbs results in different aspect ratio - w-- Newest 'ffmpeg' Questions - Stack Overflow
  My ffmpeg command looks like ffmpeg -i "/tmp/assets/input.mov" -y -ss 00:00:05 -vf fps=1/5,scale=300:-1 /tmp/output/thumbs/thumb%03d.jpg input.mov has a display resolution of 16:9 even though the source resolution looks to be 1440x1080. i.e. the video plays in a player at 16:9 (not really sure how this happens) the generated thumbs in this case are 300x225 (4:3) and look distorted. How can i have it generate the thumb according to the display aspect ratio? I was hoping for 300x169 (...)

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

• 13:43
  Revision 118512: fonction saisies_lister_finales() qui permet de lister, par ordre de ... - maieulⓐ… Revisions : saisies
  fonction saisies_lister_finales() qui permet de lister, par ordre de définition, toutes les saisies n'ayant pas de sous saisies, et cela récursivement -- Log

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

• 14:19
  Can't compile C library with C++ code using g++ - shayst Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to create a C++ program that embeds FFMPEG functionality. To do that I took one FFMPEG example and recompiled it as is using g++ (only adding extern "C" where needed). Compilation is successful, but linking fails for undefined symbols. cc -I/usr/include/x86_64-linux-gnu -Wall -g -fPIC -c -o bin/decode_video.o decode_video.cpp cc -Wl,--export-dynamic,--no-undefined -L /usr/lib/x86_64-linux-gnu/ -shared -lavdevice -lavutil -lavcodec bin/decode_video.o -o decode_video.so bin/decode_video.o: In function `decode(AVCodecContext*, AVFrame*, AVPacket*, char const*)': (...)
• 14:01
  Nodejs ffmpeg not outputting to stdout - curiousMind Newest 'ffmpeg' Questions - Stack Overflow
  The Goal: convert a webm/audio stream to a wav stream. The Browser continuously sends the webm/audio stream to backend via websocket where it should be converted to a wav encoded stream for further processing) I am spawning the child-process like this: const ffmpeg = spawn('ffmpeg', [ '-i', '-', '-ac', 1, '-f', 'wav', 'pipe:1' ]); The input is from a stream, thats why I use -i, - for letting ffmpeg know it recieves a stream via stdin someStream.pipe(ffmpeg.stdin) But if I listen on the output from ffmpeg I dont receive anything: ffmpeg.stdout.on('data', (chunk) => (...)
• 12:18
  ffmpeg: drawtext fade in/out with zmq - jb_alvarado Newest 'ffmpeg' Questions - Stack Overflow
  There are several ways to fade in and out text in ffmpeg. But I only found solutions where the actual time is known. But what can I do, when I don't know the current running time and I would like to fade in and out a text? Let's say I have an endless stream and I want to fade in a text with zmqsend. And the fade should start immediately. For that my understanding is, that I need to store some time information in a variable and calculate with that. But storing variables is not possible in ffmpeg expressions - right? For testing purposes here are a playing instance: ffplay -dumpgraph 1 (...)
• 11:04
  h264_cuvid codec not found - Ruben Cabrera Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to encode, apply a filter and decode a video through GPU. Im using H264_nvenc for encoding it, and trying to use h246_cuvid for the decoding, but FFMPEG can't find the decoder. Here is where the problem is decodingCodec = avcodec_find_encoder_by_name("h264_cuvid"); if (!decodingCodec) av_log(NULL, AV_LOG_ERROR, "Codec not found DEC.\\n"); return; OS win 10 x64 EDIT: I'm actually using Zeranoe FFmpeg with the following config --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray (...)
• 10:33
  Whatsapp FFMPEG thumbnail is not showing - Youssof H. Newest 'ffmpeg' Questions - Stack Overflow
  I want to run a command that will add an image as a thumbnail to a video. The video will be shared by WhatsApp with a thumbnail showing up. The problem is that after running the following command thumbnails don't show up in Whatsapp though it shows on Windows 10. ffmpeg -i path/to/in.mp4 -i path/to/IMAGE.png -map 0 -map 1 -c copy -c:v:1 png -disposition:v:1 attached_pic -strict -2 path/to/out.mp4 And another problem is that the video with a thumbnail doesn't play on Android, iPhone, Windows, nor on Linux. What am I doing wrong? Note: It's okay if it works with (...)
• 09:38
  Do ffmpeg create thumbnail download all of file via URL nodejs? - Nam Nguyễn Newest 'ffmpeg' Questions - Stack Overflow
  I am creating a thumbnail from video URL by ffmpeg. This is my code: function createThumbnail(videoURL, keyFileThumb) return new Promise((resolve, reject) => let tmpFile = createWriteStream(`./$keyFileThumb`) const ffmpeg = spawn(ffmpegPath, [ '-ss', '00:00:01.000', '-i', videoURL, '-frames:v', '1', '-f', 'image2', '-c:v', 'mjpeg', 'pipe:1' ]) ffmpeg.stdout.pipe(tmpFile) ffmpeg.on('close', function (code) tmpFile.end() resolve(code) ) ffmpeg.on('error', function (err) console.log(err) reject(err) ) ) I just want to create thumbnail from stream video URL then disconnect. I do not (...)
• 09:36
  Shifting overlay position every x seconds - David Tran Newest 'ffmpeg' Questions - Stack Overflow
  Currently, I add a watermark to the bottom right of my video to prevent others from republishing it. However, they blur the watermark so I'm thinking of adding a moving watermark that changes its position every x seconds. Below is my current ffmpeg command: ffmpeg -i input.mp4 -i logo.png -filter_complex "[1][0]scale2ref=iw/4:ow*90/272[wm][vid];[vid][wm]overlay=W-w-W*10/100:H-h-H*5/100" -preset veryfast output.mp4 How can I make the watermark position from the bottom right to top right, to top left, and bottom left every 30 seconds? Thank (...)
• 07:04
  Building for macOS, but linking in object file built for free standing - Robert Salesas Newest 'ffmpeg' Questions - Stack Overflow
  I am building ffmpeg and I get the following error for several files. I am not specifically building with the free standing flag, so cannot see why this is happening. What does it actually mean? Is there a problem with it, or is it an ignorable warning? If there's a problem, does anyone have any idea how to fix it? Building for macOS, but linking in object file (~/Git/FFmpeg/FFmpegXcode/lib/libavutil.a(imgutils.o)) built for free standing

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

• 02:15
  avcodec/librav1e: free the RaPacket after using it - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/librav1e: free the RaPacket after using it Fixes leaks. Reviewed-by: Derek Buitenhuis <derek.buitenhuisⓐgmail.com> Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavcodec/librav1e.c

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

• 02:58
  Run python ffmpeg audio convertion code file from subprocess.call() within a flask server - Kasun Newest 'ffmpeg' Questions - Stack Overflow
  I have build a small flask server to handle the request. I have 3 parameters in the api function that i want to get. those are type, user_id, audio_file, One is a file. Since it's used for the audio file conversion. I have to get a file.. I have tested with this in Postman audio file get saved but the subprocess.call(command) in the api function doesn't work.. this is the flask server code ⓐapp.route('/voice', methods=['GET','POST']) def process_audio(): try: if request.method == 'POST': input_type = request.form['type'] user_id = request.form['user_id'] static_file = (...)

10 November

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

• 02:47
  avcodec/dvdec: Don't use restrict directly to fix build on MSVC - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avcodec/dvdec: Don't use restrict directly to fix build on MSVC 004ebd4b added a function with a parameter that was declared as restrict and not av_restrict. This is not supported by MSVC as several FATE-boxes that now fail to build show. So use av_restrict. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐgmail.com> Tested-by: Matthias Troffaes <matthias.troffaesⓐgmail.com> Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] (...)

Xiph.org - flac.git/summary http://git.xiph.org/?p=flac.git;a=summary

• 23:12
  flac/main.c: replace an snprintf() call with flac_snprintf() - sezero Xiph.org - flac.git/summary
  flac/main.c: replace an snprintf() call with flac_snprintf() flac_snprintf() is used everywhere else in there. that single instance of plain snprintf() was added in commit 04974d27. fixes flac.exe build with older msvc versions. [DH] src/flac/main.c
• 20:42
  libFLAC/bitreader.c: Fix shift invoking undefined behaviour - Erik de Castro Lopo Xiph.org - flac.git/summary
  libFLAC/bitreader.c: Fix shift invoking undefined behaviour Credit: Oss-Fuzz Issue: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=18589 Testcase: fuzzer_decoder-5668806471188480 [DH] src/libFLAC/bitreader.c
• 20:40
  test_streams: Fix UBSAN error in random generator - Erik de Castro Lopo Xiph.org - flac.git/summary
  test_streams: Fix UBSAN error in random generator [DH] src/test_streams/main.c

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

• 20:47
  Build FFMPEG Library for Android - Gunaseelan Newest 'ffmpeg' Questions - Stack Overflow
  I have downloaded FFMPEG 4.2.1, but I don't know how to use it on Android project, Some threads said, you have to build .so files, but don't use Windows/CYGWIN, Some threads said directly extracts ffmpeg source into android project, and build with NDK, I can't get any threads as much as clear, It would be helpful if somebody redirects me on right path, I want to build my own, because existing libraries seems using old FFMPEG version, and also leads me huge app (...) -- FFMPEG 4.2.1
• 20:49
  record Linux Wayland/DRM screen using ffmpeg's kmsgrab device with superimposed webcam - nrdxp Newest 'ffmpeg' Questions - Stack Overflow
  Setup is Linux, ffmpeg using kabylake iGPU. I am capturing a running sway instance using the kmsgrab device, which requires the use of a hardware backend to coherently process the image on my hardware. Only VA API fits this bill. I want to overlay the webcam in the bottom right corner during encoding. However, attempts at manipulating the filter graph to accomplish this have been unsuccessful. This is ultimately for Twitch/Tube stream. Right now, I am actually capturing the webcam to an sdl window, and simply recording the screen using separate instances of ffmpeg. This doesn't actually (...) -- sway, kmsgrab
• 18:54
  How can I use both vaapi acceleration and video overlays with ffmpeg - nrdxp Newest 'ffmpeg' Questions - Stack Overflow
  I am fairly new to ffmpeg and I am trying to capture both my webcam and my screen, all using vaapi acceleration (without it, its too slow). I want to overlay the webcam in the bottom right corner using ffmpeg. I need to use kmsgrab, so I can record a Wayland session on Linux. What I am doing to work around this is simply open the webcam in a window using the sdl backend, and then call another instance off ffmpeg to record the screen. This isn't ideal however, since the window with the webcam gets covered up by other windows on fullscreen or when workspace switching. I would much rather (...)
• 13:29
  Merge various Video and audio files with similar names - alou S Newest 'ffmpeg' Questions - Stack Overflow
  So I have downloaded various audio and video files separately from Youtube. Now I want a .bat script to merge them all using ffmpeg. All of the are in the same folder. https://i.stack.imgur.com/2g4Li.png And the output may be in another other created subfolder. If possible also provide a brief explanation of the script. (I don't know much batch scripting but very familiar with C++ and Python) -- https://i.stack.imgur.com/2g4Li.png
• 11:48
  Animated watermark moving on the edges of the movie - ffmpeg - saeid ezzati Newest 'ffmpeg' Questions - Stack Overflow
  I wanna overlay a picture on a video, as a watermark. How do I insert an animated watermark that randomly moves from side to side. For example, A watermark, placed on top/ upper-left corner, moves randomly to the top/upper-right corner and freezes there for five seconds before moving down to the lower- right corner. I don't want the watermark to have a cross movement and move from the upper-right corner to the lower-left corner. Here is an example of my code, using which the watermark randomly jumps to a corner each 200 frames without animate: ffmpeg -i "source.mp4" -i "watermark.png" (...)
• 10:57
  decrypt AES-128 encrypted .m3u8 playlist and .TS files with ffmpeg - Mohammad Olfatmiri Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to decrypt a .m3u8 playlist, I followed these steps : create a directory copy the key to a key file, ie my.key, and place it in the dir. Note that keys can be rotated, if the playlist has multiple keys copy all of them to different files. copy all .ts segments to the same dir copy and edit the playlist.m3u8 and use just the filename(s) for the key(s) URI(s) and segments. and using this command to decrypt the playlist ffmpeg -i playlist.m3u8 -c copy output.ts but I got this error : Invalid data found when processing input here is my m3u8 : #EXTM3U #EXT-X-TARGETDURATION:12 (...)
• 10:03
  Looking to play back non-encoded video upload then export gif from selection point via FFMPEG - Christopher Neil Newest 'ffmpeg' Questions - Stack Overflow
  We've been trying to crack this code all week, reaching out to everyone to see if you have any solutions? We want the user to upload a video and in the next step he will select a small 5 second loop of the video which will be made as a gif. Old developer was able to do this by splicing the video at 10 seconds instead of 5 but not re-encoding it meant that it would sometimes be beyond 12 seconds and in some cases less than 7. We changed the code to force keyframes with re encoding so that it splices the video at exactly 5 seconds to show the loop. These slices are shown to the user using (...)
• 09:23
  Ffmpeg rtmp to hls conversion but how to solve network issue? - Baka-Maru Lama Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to convert hls stream from rtmp source and its' working fine but the problem is when rtmp server is down or network issue the ffmpeg hls conversion process gets stuck and never comes to work again even if rtmp server is back online. I've tried -reconnect_at_eof 1 -reconnect_streamed 1 -reconnect_delay_max 5 command - it says option is not recognized options by the way I'm using ffmpeg [v4.2.1]. I'm using following ffmpeg commands ffmpeg -i rtmp://localhost/living/test ^ -max_muxing_queue_size 9999 ^ -async 1 -vf yadif -g 29.97 -r 23 ^ -b:v:0 3150k -c:v libx264 -filter:v:0 (...)
• 07:23
  ffmpeg video length is 0 when concatenating pictures - iftach freund Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to concatenate individual frames, but the video length is 0 and all frames seemingly play at once. Iv'e tried increasing the video length in ffmpeg and changing the frame rate. os.system('ffmpeg -f concat -i List_tb.txt -c copy output.mp4') os.system("ffmpeg -i output.mp4 -filter:v fps=fps=120 output_temp.mp4") os.system("ffmpeg -i output_temp.mp4 -filter:v setpts=8.0*PTS final.mp4") also the frame rate is the amount of frames
• 04:06
  FFMPEG - Not finding codec parameters - Tanner Smith Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to convert a sequence of images into a mpeg movie via FFMPEG, although I keep getting an error saying that it could not find the code parameters (Video: mjpeg). A Google search did not bring much up that was useful. ffmpeg -f image2 -i /tmp/img%03d.jpg video.mpgFFmpeg version SVN-r0.5.1-4:0.5.1-1ubuntu1, Copyright (c) 2000-2009 Fabrice Bellard, et al. configuration: --extra-version=4:0.5.1-1ubuntu1 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis (...)
• 03:48
  Convert ts m3u8 to png FFMPEG - Kerbin Lozada Newest 'ffmpeg' Questions - Stack Overflow
  I recently saw a movie website that used m3u8 but the video files instead of being .ts are .png and when I download a file it is an image instead of a video with ffmpeg I extracted the information from the file and this it was what came out video url : VIDEO EN PNG "streams": [ "index": 0, "codec_name": "png", "codec_long_name": "PNG (Portable Network Graphics) image", "codec_type": "video", "codec_time_base": "0/1", "codec_tag_string": " [0][0][0]", "codec_tag": "0x0000", "width": 1, "height": 1, "coded_width": 1, "coded_height": 1, "has_b_frames": 0, "sample_aspect_ratio": "1:1", (...) -- VIDEO EN PNG
• 03:33
  ffmpeg -to flag not always correctly recognized when processing the same file and different time ranges - Sebastian Newest 'ffmpeg' Questions - Stack Overflow
  I have a file that I wanted to cut into few pieces. The problem is my command not always works: ffmpeg -ss 00:00:05 -i 4.DeepPurpleJag_robocze.mp4 -to 01:00:21 -c:v copy -c:a copy testing.mp4 produces properly cut video with the output: ffmpeg version 4.2.1 Copyright (c) 2000-2019 the FFmpeg developers built with Apple clang version 11.0.0 (clang-1100.0.33.8) configuration: --prefix=/usr/local/Cellar/ffmpeg/4.2.1_2 --enable-shared --enable-pthreads --enable-version3 --enable-avresample --cc=clang --host-cflags='-I/Library/Java/JavaVirtualMachines/adoptopenjdk-13.jdk/Contents/Home/include (...)

9 November

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

• 22:09
  How to speed a ffmpeg streaming on android using libvlc? - ALirezaSO Newest 'ffmpeg' Questions - Stack Overflow
  I'm streaming live from my GoPro inside my android app. I use ffmpeg to receive the streaming data from the GoPro and vlc to play it in a surfaceview. I used the code which is provided by KonradIT here. The main command used for the ffmpeg is: -fflags nobuffer -f mpegts -i udp://:8554 -f mpegts udp://127.0.0.1:8555/gopro?pkt_size=64 and the options for vlclib are: options.add("--aout=opensles"); options.add("--audio-time-stretch"); options.add("-vvv"); The output is something worse. It's laggy and its speed is about 17 FPS. And one annoying thing is the streamed picture is very small (...) -- here
• 20:11
  Speeding up/slowing down video ffmpeg - BahaaIddin Al Sharqawi Newest 'ffmpeg' Questions - Stack Overflow
  I want to change video speed using ffmpeg framework. I used this command for that: ffmpeg -y -i /storage/extSdCard/Video/1.avi -filter_complex [0:v]fps=50.0, setpts=0.5*PTS[v];[0:a]atempo=2.0[a] -map [v] -map [a] -preset ultrafast /storage/emulated/0/VID-20170716-VidRotate1.mp4 How can I guess the duration of the resulting video after slowing down or speeding up video? This is my whole log in console: ffmpeg -y -i /storage/extSdCard/Video/1.avi -filter_complex [0:v]fps=50.0, setpts=0.5*PTS[v];[0:a]atempo=2.0[a] -map [v] -map [a] -preset ultrafast (...)

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

• 19:01
  Revision 118486: Certains plugins comme Titres-typographiques et Ortho-typographie ... - gildas.cotomaleⓐ… Revisions : saisies
  Certains plugins comme Titres-typographiques et Ortho-typographie agissent sur les titres pour notre bonheur. Il faut donc les filtrer pour avoir une liste utilisable. -- Log

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

• 17:03
  Command works on terminal but not with Kotlin - Antony Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to use an FFMPEG command for concatenating different videos. The command is ffmpeg -i video.mp4 -i video-2.mp4 -filter_complex "[0:v:0] [0:a:0] [1:v:0] [1:a:0] concat=n=2:v=1:a=1 [v] [a]" -map "[v]" -map "[a]" output.mp4 This command works good when I run on Windows PowerShell. But when I try to run with Kotlin code it doesn't work. val firstVideo = "D:\\\\Videos\\\\ffmpeg\\\\video.mp4" val secondVideo = "D:\\\\Videos\\\\ffmpeg\\\\video-2.mp4" val resultPath = "D:\\\\Videos\\\\ffmpeg\\\\result-2.mp4" val cmd = "ffmpeg -i $firstVideo -i $secondVideo -filter_complex \\"[0:v:0] [0:a:0] [1:v:0] (...)
• 14:30
  Why the output of the ffmpeg-python doesn't match the image shape? - Swi Jason Newest 'ffmpeg' Questions - Stack Overflow
  I used the ffmpeg-python module to convert video to images. Specifically, I used the code provided by the official git repo of ffmpeg-python, as below out, _ = ( ffmpeg .input(in_filename) .filter('select', 'gte(n,)'.format(frame_num)) .output('pipe:', vframes=1, format='image2', vcodec='mjpeg') .run(capture_stdout=True) ) im = np.frombuffer(out, 'uint8') print(im.shape[0]/3/1080) # 924.907098765432 The original video is of size (1920, 1080) and pix_fmt 'yuv420p', but the outputs of the above code is not 1920. I have figured out by myself that the output of ffmpeg.run() is not a decoded (...)
• 09:42
  ffmpeg concat video length is not the sum of durations - Mason Newest 'ffmpeg' Questions - Stack Overflow
  I'm simply trying to put some images together into a video with specific durations. I'm using the command ffmpeg -f concat -i concat.txt -r 30 video.mp4 # concat.txt file capture12.png duration 1 file capture57.png duration 3 file capture156.png duration 7 file capture234.png duration 5 file capture272.png duration 3 The output of my console is ffmpeg version 4.2.1 Copyright (c) 2000-2019 the FFmpeg developers built with gcc 9.1.1 (GCC) 20190807 configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d (...)
• 07:45
  Convert videos from .264 to .265 (HEVC) with ffmpeg - John Terragnoli Newest 'ffmpeg' Questions - Stack Overflow
  I see that there are a few questions on this subject but I am still getting errors. All I want to do is convert videos in my library to HEVC so they take up less space. I've tried this: ffmpeg -i input.mp4 -c:v libx265 output.mp4 ffmpeg seems to take a long time and the output seems to be about the right size. The video will play with VLC but the icon is weird and when I try to open it with QuickTime, I get the error: 'The document “output.mov” could not be opened. The file isn’t compatible with QuickTime Player.' I don't want to change any of the fancy settings. I just want the files to (...)
• 05:33
  FFMPEG Determine average color of an area of a video - Naved Khan Newest 'ffmpeg' Questions - Stack Overflow
  I have a use case where I'd want to insert one of two watermarks - one designed for a dark-ish background, the other for a light background into a video. Let's say that I'd want to do this on the top right corner of the video. How do I determine the average color of the top right section of the video? Post this, how do I determine which watermark to use by looking at the average color? I have a solution right now where I am taking equally spaced screenshots and then measuring the average color, but it's excruciatingly slow, especially for longer videos. # Calculate average color (...)

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

• 05:40
  Révision 118480: [Salvatore] [source:_core_/plugins/statistiques/lang/ statistiques] Export depui... - hanjo.spipⓐgmail.com Revisions : SPIP

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

• 03:27
  avformat/mlvdec:drop unnecessary check before ff_format_io_close - Steven Liu git.videolan.org Git - ffmpeg.git/rss log
  avformat/mlvdec:drop unnecessary check before ff_format_io_close Reviewed-by: Linjie Fu <linjie.fuⓐintel.com> Reviewed-by: Jun Zhao <barryjzhaoⓐtencent.com> Signed-off-by: Steven Liu <lqⓐchinaffmpeg.org> [DH] libavformat/mlvdec.c
• 02:48
  avcodec/libvpxenc,cosmetics: fix a typo - James Zern git.videolan.org Git - ffmpeg.git/rss log
  avcodec/libvpxenc,cosmetics: fix a typo predicition -> prediction [DH] libavcodec/libvpxenc.c

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

• 00:28
  Restreaming another nginx rtmp stream - Amar Kalabić Newest 'ffmpeg' Questions - Stack Overflow
  First of all, I'll explain what I want to achieve, because there might be even better way to achieve this. I am looking at making 2 streams work, one is pushing to twitch.tv and youtube with delay and other one is live (without delay) that can be watched using VLC or whatever. I am able to achieve this partially, but "live" stream just breaks sometimes randomly with this error: Failed to update header with correct duration. Failed to update header with correct filesize. Before, I had "Could not find codec parameters" error, but I solved it by adding this to my ffmpeg command: (...) -- https://github.com/sistason/rtmp_stream_delayer

8 November

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

• 22:41
  I need to search some directory looking for DAV files and if there is trigger a task - audicom Newest 'ffmpeg' Questions - Stack Overflow
  I need to run a script recursively in the directory and trigger some functions if DAV files exist. However, the code does not work correctly. I need the process of executing task 01 if it does not exist in the DAV file, and perform the task 02 execution case in the DAV file. code: link for download file test: https://www.dropbox.com/sh/78w681qb4r29t6q/AABd7H73uFsl1JDGtIPEnVQHa?dl=0 cd E:\\TESTE\\1002 :LOOP01 For /R %%G in (*.Dav) do IF NOT EXIST "%%G" GOTO SKIP01 :LOOP02 For /R %%G in (*.Dav) do IF EXIST "%%G" GOTO SKIP02 : :SKIP01 PING 1.1.1.1 -n 10 -w 600 >NUL GOTO LOOP01 : (...) -- https://www.dropbox.com/sh/78w681qb4r29t6q/AABd7H73uFsl1JDGtIPEnVQHa?dl=0
• 22:01
  Call system package with Go on App Engine Standard - reidreid46 Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to use FFmpeg in a Go application thats running on Google App Engine Standard. I can get this to run locally, when I point to a local instance of the FFmpeg binary using exec.Command() cmd := exec.Command( "/Users/justin/Desktop/conversion/ffmpeg", // this won't work on a remote server "-i", "pipe:0", "-ac", "1", "-codec:a", "libmp3lame", "-b:a", "48k", "-ar", "24000", "-f", "mp3", "pipe:1", ) cmd.Stdin = bytes.NewReader(synthResp.AudioContent) var output bytes.Buffer cmd.Stdout = &output err = cmd.Run() Obviously, this won't work when I deploy the application, so I need a (...) -- FFmpeg, Go, Google App Engine Standard, system package
• 20:57
  How to add outro background music to another audio file with FFMpeg? - Sebastian Newest 'ffmpeg' Questions - Stack Overflow
  I have two files: story.wav (180 seconds) and background-music.wav (90 seconds). I need a FFMpeg command that merges the two files and fades in background-music.wav (with esin) 30 seconds before the end of story.wav. I have this in separate commands: ffmpeg -i background-music.wav -filter_complex afade=t=in:curve=esin:ss=0:d=30 fadein.wav ffmpeg -i fadein.wav -af "adelay=150000|150000" delayed.wav ffmpeg -i delayed.wav -i story.wav -filter_complex amix=inputs=2:duration=longest final.wav This is ugly - and it has the problem, that the volume of the first part is only 50% (the volume (...)
• 19:31
  Implement Adobe Photoshop's "Levels" feature using ffmpeg - user6434902 Newest 'ffmpeg' Questions - Stack Overflow
  In Adobe photoshop, I used the "Levels" feature to adjust Shadows, Midtones and Highlights of an image. I need an elegant solution using ffmpeg to implement the same effect. A ffmpeg implementation will help me perform the operation programmatically. I've tried using the colorbalance filter available on ffmpeg. ffplay -i input -vf colorbalance=rs=-0.75:gs=-0.75:bs=-0.75:rm=-0.875:gm=-0.875:bm=-0.875:rh=-1:gh=-1:bh=-1 In photoshop I'm able to achieve the expected results with the following settings, Shadows - 199 Midtones - midpoint Highlights - (...)
• 19:06
  Why do I catch the "AccessViolationException" exception in av_hwframe_transfer_data () when I run it as a windows service? - vakym Newest 'ffmpeg' Questions - Stack Overflow
  I write Windows service witch decodig video stream from camera. I write it on c# with FFMPEG.Autogen wrapper. My problem is "AccessViolationException" when i run it as service. If i run application as Console Application i have no exceptions. In Stacktrace i see this: в FFmpeg.AutoGen.ffmpeg+c.b__5_572(FFmpeg.AutoGen.AVFrame*, FFmpeg.AutoGen.AVFrame*, Int32) в FFmpeg.AutoGen.ffmpeg.av_hwframe_transfer_data(FFmpeg.AutoGen.AVFrame*, FFmpeg.AutoGen.AVFrame*,Int32) в VideoProviderService.VideoSources.RTSPVideoSource.TryDecodeNextFrame(Boolean ByRef) Code of TryDecodeNextFrame method: public (...)
• 18:26
  FFmpeg - avcodec_receive_frame returns AVERROR(EAGAIN) - Jinx Newest 'ffmpeg' Questions - Stack Overflow
  I'm using an QOpenGL widget to draw frames. However, I'm struggling to get frames by using avcodec_receive_frame. It ended within the block else if (ret == AVERROR(EAGAIN)) and returned -11. I have no idea what made this happen. Also I checked that codecs were fine, so I guess the problem wasn't caused by codecs. MyDemux.cpp AVPacket* MyDemux::allocatePacket() AVPacket* packet = av_packet_alloc(); return packet; AVFrame* MyDemux::allocateFrame() AVFrame* frame = av_frame_alloc(); return frame; int MyDemux::readFrame(AVPacket* packet) mux.lock(); if (!formatCtx) std::cout (...)
• 17:39
  FFmpeg libary in WPF - MikeTMG Newest 'ffmpeg' Questions - Stack Overflow
  I am building a softwere that can decode and encode using Wpf and c#, and I want to do that using, FFmpeg libary. I saw the ffmpeg autogen warpper but I couldn't find any documantion for its function. Can someone please find me one? Or better, give me better warrper. I already tried FFMpegCore, its working but very slow. For Exaple it takes 20 seconds to decode a specific frame.(And i have monstruos computer) If will be happy if ou could give me better warpper, or a guide for ffmpeg.autogen. Thanks in (...)

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

• 08:51
  avfilter/vf_dnn_processing: fix fate-source - Guo, Yejun git.videolan.org Git - ffmpeg.git/rss log
  avfilter/vf_dnn_processing: fix fate-source Signed-off-by: Guo, Yejun <yejun.guoⓐintel.com> Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavfilter/vf_dnn_processing.c
• 04:55
  avfilter/vf_dnn_processing: correct duplicate statement - leozhang git.videolan.org Git - ffmpeg.git/rss log
  avfilter/vf_dnn_processing: correct duplicate statement Signed-off-by: leozhang <leozhangⓐqiyi.com> Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavfilter/vf_dnn_processing.c

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

• 16:21
  Add a moving watermark that changes position every x seconds with ffmpeg - David Tran Newest 'ffmpeg' Questions - Stack Overflow
  Currently, I add a watermark to the bottom right of my video to prevent others from republishing it. However, they blur the watermark so I'm thinking of adding a moving watermark that changes its position every x seconds. Below is my current ffmpeg command: ffmpeg -i input.mp4 -i logo.png -filter_complex "[1][0]scale2ref=iw/4:ow*90/272[wm][vid];[vid][wm]overlay=W-w-W*10/100:H-h-H*5/100" -preset veryfast output.mp4 How can I make the watermark position from the bottom right to top right, to top left, and bottom left every 30 seconds? Thank (...)
• 15:59
  Is there an elegant way to split a file by chapter using ffmpeg? - Kattern Newest 'ffmpeg' Questions - Stack Overflow
  In this page, Albert Armea share a code to split videos by chapter using ffmpeg. The code is straight forward, but not quite good-looking. ffmpeg -i "$SOURCE.$EXT" 2>&1 | grep Chapter | sed -E "s/ *Chapter #([0-9]+.[0-9]+): start ([0-9]+.[0-9]+), end ([0-9]+.[0-9]+)/-i \\"$SOURCE.$EXT\\" -vcodec copy -acodec copy -ss \\2 -to \\3 \\"$SOURCE-\\1.$EXT\\"/" | xargs -n 11 ffmpeg Is there an elegant way to do this job?
• 15:54
  Joining a video stream in ffmpeg by passing an SDP file as inline data - user1447903 Newest 'ffmpeg' Questions - Stack Overflow
  Afternoon. Using ffmpeg I can open an SDP file using the syntax: ffmpeg -protocol_whitelist file -i file.sdp Does anyone know if it is possible to join the stream described in the sdp file without first writing the contents to a file? So, for example, if the SDP file contents is: v=0 m=video 1234 RTP/AVP 96 c=IN IP4 232.1.2.3 a=rtpmap:96 MP4V-ES/90000 a=source-filter: incl IN IP4 232.1.2.3 1.2.3.4 Can I use the data input type described here: https://ffmpeg.org/ffmpeg-protocols.html#data To join the same stream doing something like: ffmpeg -protocol_whitelist data -i (...) -- https://ffmpeg.org/ffmpeg-protocols.html#data
• 14:38
  rtmp can be played by ffplay, but video.js not - Cat Tom Newest 'ffmpeg' Questions - Stack Overflow
  I just run ffprobe -show_frames -i rtmp://127.0.0.1:1935/live/0 and I got: ffprobe version 4.1 Copyright (c) 2007-2018 the FFmpeg developers built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.10) 20160609 configuration: --enable-shared --enable-libx264 --enable-sdl --enable-gpl libavutil 56. 22.100 / 56. 22.100 libavcodec 58. 35.100 / 58. 35.100 libavformat 58. 20.100 / 58. 20.100 libavdevice 58. 5.100 / 58. 5.100 libavfilter 7. 40.101 / 7. 40.101 libswscale 5. 3.100 / 5. 3.100 libswresample 3. 3.100 / 3. 3.100 libpostproc 55. 3.100 / 55. 3.100 [h264 ⓐ 0xf5e400] Invalid NAL unit 0, (...)
• 13:49
  Web camera Logitech and Linux - Nick Saw Newest 'ffmpeg' Questions - Stack Overflow
  I have Logitech C310 camera with the declared characteristics of 720p 30fps. If you connect the camera to windows, the recording is fully consistent with the stated 720p 30fps - the picture is clear. The challenge is to connect the same camera to OrangePI (server Armbian) and to save video files on it. The camera appears as /dev/video0. sudo ffmpeg -f v4l2 -s 1280x720 -i /dev/video0 output.wmv As a result, I get a crumbly picture with a frequency of 5 fps. Maybe I'm using ffmpeg incorrectly? Please help me who has experience with Web cameras on Linux ... Thanks in advance. (...)

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

• 10:22
  Anomalie #4397: dans n'est pas échappé - b b Revisions : SPIP
  Rectificatif, c'est traiter_modele dans textwheel qui s'occupe de ça.
• 10:19
  Anomalie #4397: dans n'est pas échappé - b b Revisions : SPIP
  Ça vient donc de inc_marquer_doublons_doc_dist qui est dans le plugin medias + version cible.

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

• 08:48
  Google Speech Recognition API output errors, unsure why they're occuring - Requiem_7 Newest 'ffmpeg' Questions - Stack Overflow
  This is the output for when I feed flac files into Google's Speech Recognition API. It says that if starts and finishes most of the files but then it gives me these errors when it nears the end. I have checked and all these files are native flac files. I took out a good chunk of the output above "source/out70.flac started" becuase it's all the same besides the file number. source/out70.flac started source/out25.flac started source/out17.flac done source/out18.flac started source/out25.flac done source/out20.flac done source/out21.flac started source/out10.flac done source/out100.flac (...)
• 08:12
  How can we reduce the size of audio file after uploading? - Arjun Pujari Newest 'ffmpeg' Questions - Stack Overflow
  I have used this command in the terminal to install the package: composer require pbmedia/laravel-ffmpeg. The package is successfully downloaded, but I don't know how to use it. I don't even know if this package can also reduce the audio file size or not. Anyone know any other library or package? Select Audio to upload: Here is my controller. Write basic code for save file: namespace App\\Http\\Controllers; use Illuminate\\Http\\Request; use Pbmedia\\LaravelFFMpeg\\FFMpeg; class FileCompress extends Controller public function compressFile(Request $request) $uploadFileName = (...)

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

• 06:17
  decode a mp4 video with gstreamer - KKc Newest 'x264' Questions - Stack Overflow
  I want to play a mp4 video in Gstreamer, but i got an error with the x264dec which is not found. I wrote this pipeline gst-launch filesrc \\ location=/media/thesis/Gstreamer/pub_Irma.mp4 \\ ! qtdemux name=demux demux. ! queue ! faad \\ ! audioconvert ! audioresample ! autoaudiosink demuxer. \\ ! queue ! x264dec ! ffmpegcolorspace ! autovideosink After this step, my aim is to generate execution traces of a mp4 video decoding. I don't know where is the problem with (...)

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

• 05:48
  Revision 118462: [Salvatore] [source:_plugins_/saisies/trunk/lang/ saisies] Export ... - salvatoreⓐ… Revisions : saisies
  [Salvatore] saisies Export depuis ​http://trad.spip.net -- Log

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

• 05:20
  How to convert m4v and wmv videos to mp4 format using ffmpeg? - Balaji Kandasamy Newest 'ffmpeg' Questions - Stack Overflow
  I am using ffmpeg to convert videos to mp4 in my PHPMotion project. I am not able to convert wmv and m4v video to mp4 format. I've pasted the command that I used to convert wmv and m4v: ffmpeg -i 1.wmv -ab 128 -b 1200 test.mp4 ffmpeg -i 1.m4v -ab 128 -b 1200 test.mp4 When I use this codes, i got an error message: Output #0, mp4, to 'test.mp4': Stream #0.0: Video: mpeg4, yuv420p, 640x360, q=2-31, 1 kb/s, 90k tbn, 24 tbc Stream #0.1: Audio: 0x0000, 44100 Hz, stereo, s16, 0 kb/s Stream mapping: Stream #0.0 -> #0.0 Stream #0.1 -> #0.1 Unsupported codec for output stream #0.1 How can I solve (...)
• 04:47
  How to use ffmpeg to cut audio into overlapping segments? - Maryam Rahmani Moghaddam Newest 'ffmpeg' Questions - Stack Overflow
  I have used the following code in python to cut an audio file to equal parts with a length of 5 seconds: import subprocess command = "ffmpeg -i audio.wav -f segment -segment_time 5-c copy every_5_sec/out%03d.wav" subprocess.call(command, shell=True) But I need overlapping parts. In other words, I need an audio segment to contain one second of the previous and one second of the next audio segments.
• 04:45
  More problems with FFmpeg not recognizing the directory I'm sending it to - Requiem_7 Newest 'ffmpeg' Questions - Stack Overflow
  I am creating a program that takes an audio file, breaks it up into 30-second audio files, and sends those files to Google's Speech Recognition API to transcribe the audio. I'm using FFmpeg to break up the original audio file and make the 30-second files. It was working for about 20 minutes and I didn't change anything but now it's giving me an error saying that no such file or directory exists. Here is the error it gives me: C:\\Users\\hmkur\\Desktop\\Python\\Transcribing_Audio_GoogleAPI_Python>ffmpeg -i source/valve.flac -f segment -segment_time 30 -c copy parts/out%01d.flac ffmpeg version (...)
• 01:04
  Upload a picture to generate a video with special effects - Zedd Newest 'ffmpeg' Questions - Stack Overflow
  I am stucked by a video processing feature, Specifically, upload an image and then generate a video based on various video templates. Here are the video templates: http://video-static.biku8.com/data/video/template/3286012076458048/7437ab55-2e83-4a36-9046-5708fcddf4c1.mp4 http://video-static.biku8.com/data/video/template/3274256089907264/ae8fa3f7-6c9c-45ca-810f-48db92cc14cb.mp4 http://video-static.biku8.com/data/video/template/3213894231425088/bf107d439b9043a58c1ea0ba26f811db_template.mp4 ... As shown in the video templates above, I just need to upload a photo to generate a great video. (...) -- http://video-static.biku8.com/data/video/template/3286012076458048/7437ab55-2e83-4a36-9046-5708fcddf4c1.mp4, http://video-static.biku8.com/data/video/template/3274256089907264/ae8fa3f7-6c9c-45ca-810f-48db92cc14cb.mp4, http://video-static.biku8.com/data/video/template/3213894231425088/bf107d439b9043a58c1ea0ba26f811db_template.mp4

7 November

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

• 16:41
  Revision 118456: un static qui ne retournait pas le bon résultat + ne prenait pas en ... - maieulⓐ… Revisions : saisies
  un static qui ne retournait pas le bon résultat + ne prenait pas en compte une récursivité > un static qui n'en vaut pas la peine -- Log
• 16:31
  Revision 118454: up de y - maieulⓐ… Revisions : saisies
  up de y -- Log
• 16:31
  Revision 118453: un label oublié sur les case dans les constructeur de saisies (Marcimat) - maieulⓐ… Revisions : saisies
  un label oublié sur les case dans les constructeur de saisies (Marcimat) -- Log

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

• 20:00
  Anomalie #4397 (Nouveau): dans n'est pas échappé - Maïeul Rouquette Revisions : SPIP
  Si j'écris alors le document 1 sera automatiquement joint à l'article (cf https://contrib.spip.net/ecrire/?exec=article&id_article=5205#forum502992) même chose si entre balise Il y a donc un souci dans la détection du modèle, qui est detecté indument alors que c'est du code

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

• 20:11
  Getting green screen in ffplay: Streaming desktop (DirectX surface) as H264 video over RTP stream using Live555 - Ram Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to stream the desktop(DirectX surface in NV12 format) as H264 video over RTP stream using Live555 & Windows media foundation's hardware encoder on Windows10, and expecting it to be rendered by ffplay (ffmpeg 4.2). But only getting a green screen like below, I referred MFWebCamToRTP mediafoundation-sample & Encoding DirectX surface using hardware MFT for implementing live555's FramedSource and changing the input source to DirectX surface instead of webCam. Here is an excerpt of my implementation for Live555's doGetNextFrame callback to feed input samples from (...) -- , , , , MFWebCamToRTP mediafoundation-sample, Encoding DirectX surface using hardware MFT
• 20:08
  How to extract sequence of lossless images with FFMPEG and pipe them to mozjpeg's cjpeg? - Finch Newest 'ffmpeg' Questions - Stack Overflow
  I know it can be down with imagemagick but mozjpeg produces much smaller images which is desirable. I want all frames of a video be extracted and converted to JPEG by mozjpeg. What I have tried: $ ind = 1 $ ffmpeg -hide_banner -ss 00:00:10 -i IN.webm -t 00:00:02 -r 24 -c:v bmp -f image2pipe pipe:1 | \\ cjpeg - workDir/$((ind++)).jpeg Error message: av_interleaved_write_frame(): Broken pipe time=00:00:00.00 bitrate=N/A speed= 0x Error writing trailer of pipe:1: Broken pipe frame= 1 fps=0.0 q=-0.0 Lsize= 6075kB time=00:00:00.04 bitrate=1194394.4kbits/s speed=0.0765x video:6075kB audio:0kB (...)
• 16:04
  Video output file duration is cut in half when processed using fluent-ffmpeg - Kamau Newest 'ffmpeg' Questions - Stack Overflow
  I have a node server set up and it takes a file for pre-processing. When using only ffmpeg library, files are processed with no problem, when using fluent-ffmpeg, if a video is 20 seconds, the output will only be the last half of the video (10 seconds). I've tried multiple files of varying length and with same issue. Any idea why this would happen? const ffmpegPath = require('ⓐffmpeg-installer/ffmpeg').path; const ffprobePath = require('ⓐffprobe-installer/ffprobe').path; const ffmpeg = require('fluent-ffmpeg'); ... ffmpeg.setFfmpegPath(ffmpegPath); ffmpeg.setFfprobePath(ffprobePath); (...)
• 15:31
  How to solve Fatal error: Uncaught Alchemy\\BinaryDriver\\Exception\\ExecutionFailureException: ffmpeg failed to execute command - Ahmed Rashid Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to encode video using the PHP-FFMpeg library, but there are some errors that are shown to me. The errors: Fatal error: Uncaught Alchemy\\BinaryDriver\\Exception\\ExecutionFailureException: ffmpeg failed to execute command "C:/FFmpeg/bin/ffmpeg.exe" -y -i video1.mp4 -async 1 -metadata:s:v:0 start_time=0 -threads 12 -vcodec libx264 -acodec libfaac -b:v 1000k -refs 6 -coder 1 -sc_threshold 40 -flags +loop -me_range 16 -subq 7 -i_qfactor 0.71 -qcomp 0.6 -qdiff 4 -trellis 1 -b:a 128k -vf "[in]scale=320:240 [out]" -pass 1 -passlogfile (...) -- PHP-FFMpeg library
• 13:50
  Nginx + rtmp + ffmpeg best practice to publish multiple resolutions streaming from video file - youssef hamdane Newest 'ffmpeg' Questions - Stack Overflow
  I want to make livestream from video file to multiple resolutions (480,720) using nginx and rtmp, what is the best practice that I can do for that : 1 - transcode video and store it with all resolutions that I need when user upload it using ffmpeg, and then publish every file directly example : rtmp server listen 1935; notify_method get; application live live on; ffmpeg -re -i /path/video_720.mp4 -re -i /path/video_480.mp4 -map 0 vcodec libx264 -threads 0 -vprofile baseline -acodec aac -strict -2 -f flv rtmp://localhost:1935/show/$name_720 -map 0 vcodec libx264 -threads 0 -vprofile (...)
• 10:55
  No such file or directory on android ffmpeg in api level 28 - Mohammadreza Janipour Newest 'ffmpeg' Questions - Stack Overflow
  I use FFmpeg and its ok when I run it on android device with API level 25 but when I run it on a device with API level 27 show "No such file or directory" error in my log. My FFmpeg library: bravobit.nl.ffmpegandroid Please help me. My full logcat: E/FFmpeg: Exception while trying to run: [/data/user/0/com.myapplication/files/ffmpeg, -i, /external_files/org_94594219219624692.mp3, -af, adelay=0|0, -preset, ultrafast, /external_files/vc1_94594219219624692.mp3] java.io.IOException: Cannot run program "/data/user/0/com.myapplication/files/ffmpeg": error=2, No such file or directory at (...)
• 08:52
  How to use blend and concat filter with audio stream? - Zenix-K Newest 'ffmpeg' Questions - Stack Overflow
  I tried to combine two video files with concat, blend and amx filter. I've succeed two video when I used only video stream. after then adding audio streams the code(filter script) Ffmpeg didn't work. two video crossfade(Good work) ffmpeg -y -i "A.mp4" -i "B.mp4" -filter_complex "[0:v]split[v000][v010];[1:v]split[v100][v110];[v000]trim=0:17[v001]; [v010]trim=17:27[v011t];[v011t]setpts=PTS-STARTPTS[v011];[v100]trim=0:10[v101]; [v110]trim=10:50[v111t];[v111t]setpts=PTS-STARTPTS[v111];[v101] [v011]blend=all_expr='A*(if(gte(T,10),1,T/10))+B*(1- (...)
• 08:38
  Stream audio to multiple web browsers - Robert Bain Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to play some audio on my linux server and stream it to multiple internet browsers. I have a loopback device I'm specifying as input to ffmpeg. ffmpeg is then streamed via rtp to a WebRTC server (Janus). It works, but the sound that comes out is horrible. Here's the command I'm using to stream from ffmpeg to janus over rtp: nice --20 sudo ffmpeg -re -f alsa -i hw:Loopback,1,0 -c:a libopus -ac 1 -b:a 64K -ar 8000 -vn -rtbufsize 250M -f rtp rtp://127.0.0.1:17666 The WebRTC server (Janus) requires that the audio codec be opus. If I try to do 2 channel audio or increase the (...)
• 07:04
  FFmpeg giving me failed to open segment error. Trying to parse .wav file into 30-second files - Requiem_7 Newest 'ffmpeg' Questions - Stack Overflow
  Here is the command I used and the output when I try and parse the .wav file into 30-second clips: C:\\Users\\hmkur>ffmpeg -i C:\\Users\\hmkur\\Desktop\\Python\\Transcribing_Audio\\source\\valve.wav -f segment -segment_time 30 -c copy parts/out%09d.wav ffmpeg version git-2019-11-05-c54268c Copyright (c) 2000-2019 the FFmpeg developers built with gcc 9.2.1 (GCC) 20191010 configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb (...)
• 02:53
  FFMPEG freeze last frame until end time - Michael Joseph Aubry Newest 'ffmpeg' Questions - Stack Overflow
  I have an animation that gets turned into a bunch of png's. I am trying to keep the animation under 2 seconds. My users have a timeline where they can specify how long they want it to be visible. I take about 120 screenshots that will mean 120 frames gets passed through at 60 frames per second, which is 2 seconds. The user may want the text to be there for 5 seconds. My goal is to take the last frame and have it stay in the video until the specified end time. How can I take the 120th frame and keep it in the video until then using FFMPEG. Here is my generated command below. ffmpeg -i (...)

6 November

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

• 23:05
  avcodec/libvpxdec.c,cosmetics: bpp -> bpc - James Zern git.videolan.org Git - ffmpeg.git/rss log
  avcodec/libvpxdec.c,cosmetics: bpp -> bpc Signed-off-by: James Zern <jzernⓐgoogle.com> [DH] libavcodec/libvpxdec.c
• 20:37
  avfilter/Makefile: add missing framesync dependency to bm3d & mix filters - Lou Logan git.videolan.org Git - ffmpeg.git/rss log
  avfilter/Makefile: add missing framesync dependency to bm3d & mix filters Signed-off-by: Lou Logan <louⓐlrcd.com> [DH] libavfilter/Makefile
• 20:35
  configure: select missing rdft for several filters - Lou Logan git.videolan.org Git - ffmpeg.git/rss log
  configure: select missing rdft for several filters afir, sinc, superequalizer, surround For afir fft is replaced with rdft as: rdft_select="fft" Signed-off-by: Lou Logan <louⓐlrcd.com> [DH] configure

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

• 22:31
  FFMPEG pipe input filenames from command line on windows - Andrew Harris Newest 'ffmpeg' Questions - Stack Overflow
  I am concatenating a bunch of files on a windows 10 box into a single file using "ffmpeg -f concat -safe 0 -i list.txt -c copy output.mp4". This works fine when I generate list.txt in the required format. What I am wanting is to not have to generate the file first and instead pipe the filenames in as the examples here show for *nix. I have tried as follows "ffmpeg -f concat safe 0 -i Any idea's how to make this work? -- here
• 21:31
  Piping stream to ffmpeg via forked process stdin - Yanick Salzmann Newest 'ffmpeg' Questions - Stack Overflow
  I am piping data from my raspberry pi camera to ffmpeg to convert them into an mp4 stream. I do so not with libavformat/libavformat but I call ffmpeg directly like this: context->ffmpeg_process = utils::launch_subprocess( "ffmpeg", "-f", "rawvideo", "-pix_fmt", "yuv420p", "-s", "1920x1080", "-r", "30", "-i", "-", "-c", "libx264", "-f", "mp4", "-movflags", "frag_keyframe+empty_moov", "-", "-loglevel", "trace" ); This is my wrapper around fork and exec like this: const auto child = fork(); if(child == 0) if (dup2(stdin_pipe[PIPE_READ], STDIN_FILENO) == -1) exit(errno); // same for (...)

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

• 13:18
  fftools/ffmpeg_opt: Fix mixed declarations and code - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  fftools/ffmpeg_opt: Fix mixed declarations and code Introduced in ed3c317d. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐgmail.com> Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] fftools/ffmpeg_opt.c
• 08:00
  avcodec/extract_extradata_bsf: fix typo in comments - leozhang git.videolan.org Git - ffmpeg.git/rss log
  avcodec/extract_extradata_bsf: fix typo in comments Signed-off-by: leozhang <leozhangⓐqiyi.com> Reviewed-by: Gyan <ffmpegⓐgyani.pro> Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavcodec/extract_extradata_bsf.c

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

• 19:22
  How to make my video in landscape mode using ffmpeg - Aarwil Newest 'ffmpeg' Questions - Stack Overflow
  I have four video chats. Somehow I have managed to cut videos into pieces, stored in array then stacked and finally concat the video which is in the youtube link down below. I have used the size in the portrait view is 640*480. But I need to show them in the landscape. Suggest me any ideas. Landscape view: https://youtu.be/u8tmL2-CdK0 Portrait view: https://youtu.be/lO-Q3I9X8OA These are my inputs Input #0, matroska,webm, from 'PA473fbf06ed1f952f95c88b9cf22ed0ba_pre.mkv': Metadata: encoder : GStreamer matroskamux version 1.8.1.1 creation_time : 2019-11-05T06:08:19.000000Z Duration: (...) -- https://youtu.be/u8tmL2-CdK0, https://youtu.be/lO-Q3I9X8OA
• 17:56
  Batch encode then compare file size vs original and delete larger - PolarBear Newest 'ffmpeg' Questions - Stack Overflow
  Currently running a batch script to mass convert media clips to save some storage space. I'd like to also add automation to the script that after the conversion will delete which ever ends up being the larger file. Not entirely sure how to best set that up at the end of each conversion. pushd "%2" ::Default variables SET paths=paths.txt ::paths lets you put a bunch of folder paths in a text file and run this across those, instead of individually. I use this to run overnight on a LOT of footage folders at once. Thanks to Aayla for a lot of these upgrades ::Fun tip - select your folders (15 (...)
• 17:14
  How to process h264 formatted video, modify each frame & create the another h264 formatted video with the processed images using openCV/ffmpeg - Rahul Talole Newest 'ffmpeg' Questions - Stack Overflow
  I want to process a "h264" formatted video frame by frame. Process the frame to add some kind of noise in the same (for ex. salt & pepper noise) & recreate the "h264" formatted video from the processed images (noisy images) with the same sequence as the original "h264" video. I tried the same using the openCV but I am not getting any workable specific codec (required by cv2.VideoWriter) to create the h264 formatted video. So, I have created the mp4 video of the noisy images & then converted the same from mp4 to h264 format using ffmpeg. But I guess I am loosing too much (...)
• 16:19
  FFMPEG compressed MP4 video not playing on mozila "file currupt error" - user2519007 Newest 'ffmpeg' Questions - Stack Overflow
  I have compressed MP4 video using FFmpeg in PHP environment. Videos are being compressed but these are not playing in firefox showing error: Video can't be played because the file is corrupt while this video is playing fine in VLC media player also in chrome browser. My code of compression is as- exec("ffmpeg -i input.mp4 -acodec mp2 output.mp4");
• 14:24
  cannot find ffmpeg in videoshow in nodejs - Sunil Garg Newest 'ffmpeg' Questions - Stack Overflow
  I want to create video from image files. So I have installed videoshow module. And configured the same as per the documentaion. var videoOptions = fps: 25, loop: 5, // seconds transition: true, transitionDuration: 1, // seconds videoBitrate: 1024, videoCodec: 'libx264', size: '640x?', audioBitrate: '128k', audioChannels: 2, format: 'mp4', pixelFormat: 'yuv420p' var images = [ "D:/PROJECTS/Video/storage/1.jpg", "D:/PROJECTS/Video/storage/2.jpg" ]; app.get("/video", function () videoshow(images, videoOptions) // .audio('song.mp3') .save('video.mp4') .on('start', function (command) (...) -- videoshow module
• 14:14
  FFmpeg concat video and audio out of sync - Xeoncross Newest 'ffmpeg' Questions - Stack Overflow
  Joining multiple files using ffmpeg concat seems to result in a mismatch of the timestamps or offsets for the audio. I've tried with several videos and noticed the same problem for h.264 / MP4. Using concat and encoding the video seems to work fine. The audio stays in sync as ffmpeg does the full conversion calculations and seems to get everything right. However, simply concatenating the videos without any transformation or encoding results in a slowly increasing sync issue. Obviously, encoding the videos rather than simply joining them will result in a loss of information/quality so I (...) -- concat, tried several flags, Here is the full ffprobe output, Here is the original (red) vs the segment (green), http://davidpennington.me/share/audio_sync_test_video.zip
• 12:30
  FFMPEG command is not Working in Android Q - SAVALIYA REENA Newest 'ffmpeg' Questions - Stack Overflow
  I am using the FFMPEG library to get a watermark stamp on video. It is working like charm in all versions excepts Android 10, It gives me below exception. E/FFmpeg: Exception while trying to run: [Ljava.lang.java.io.IOException: Cannot "/data/user/0/com.videowatermark.addtextandtimestampongalleryvideos/files/ffmpeg": error=13, Permission denied Caused by: java.io.IOException: error=13, Permission denied at java.lang.UNIXProcess.forkAndExec(Native Method) at java.lang.UNIXProcess.(UNIXProcess.java:133) at java.lang.ProcessImpl.start(ProcessImpl.java:141) at (...)
• 09:07
  FileNotFoundError on aws Lambda when concatenating videos with ffmpeg - Shibu Menon Newest 'ffmpeg' Questions - Stack Overflow
  Goal : Concat 2 videos (both are in an s3 bucket) via aws Lambda using ffmpeg Upload the resultant output.mp4 to another S3 bucket Python 3+ I've already created a layer containing a static ffmpeg The Error : "errorMessage": "[Errno 2] No such file or directory: '/tmp/output.mp4'", "errorType": "FileNotFoundError", "stackTrace": [ [ "/var/task/lambda_function.py", 19, "lambda_handler", "s3.Object(bucketLowRes, mp4OutputFileName).put(Body=open(new_file_key, 'rb'))" ] ] My Lambda function : import json import os import subprocess import boto3 s3 = boto3.resource('s3') bucketLowRes = (...)
• 03:47
  Pausing video streaming at EOF with FFMPEG ( Streaming and saving simultaneously) - Padfoot Newest 'ffmpeg' Questions - Stack Overflow
  I am writing a video to a local file using videowriter in OpenCV and at the same time, I am streaming it using ffmpeg+RTSP. But my video writing is slower than streaming. So RTSP is reaching the EOF and streaming is stopped. Is there any way or option in FFMPEG to pause the stream if it reached EOF and resumes again from the same time point. EDIT System - Ubuntu 16, 32 GB RAM. For video writing (frame by frame) - int i = 0; VideoWriter video("output.mp4",CV_FOURCC('a','v','c','1'),25, Size(frame_width,frame_height)); while(1) Mat frame; cap >> frame; if (frame.empty()) break; (...)
• 03:03
  Writing a video frame by frame using ffmpeg - Chris Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to write a video frame by frame using ffmpeg as explained here: http://zulko.github.io/blog/2013/09/27/read-and-write-video-frames-in-python-using-ffmpeg/ However, I am always getting an OSError: [Errno 22] Invalid argument. I am on Windows 7 and using Python 3.4. Here is the code: import subprocess as sp import numpy as np import time ffmpeg_bin = r'C:\\path\\to\\ffmpeg\\ffmpeg.exe' command = [ffmpeg_bin, '-y', # (optional) overwrite output file if it exists '-f', 'rawvideo', '-vcodec','rawvideo', '-s', '420x360', # size of one frame '-pix_fmt', 'rgb24', '-r', '24', # frames per (...) -- http://zulko.github.io/blog/2013/09/27/read-and-write-video-frames-in-python-using-ffmpeg/
• 00:46
  Aws lambda audio features extraction ( Not enough storage -Layers ) - Amit Neuhaus Newest 'ffmpeg' Questions - Stack Overflow
  We have IOT sensors that uploads wav files into S3 Bucket. We want to be able to extract sound features from each file that is getting uploaded (create obj event) with aws lambda For that we need: python librosa or pyAudio analysis package + numpy and scipy. (~ 240mb unzziped) ffmpeg (~ 70mb unzziped) As you can see there is no way to put them all together in same lambda package (250mb uncompressed max). And im getting an error when not including the ffmpeg in the layers when gathering the wav file: [ERROR] FileNotFoundError: [Errno 2] No such file or directory: 'ffprobe': 'ffprobe' (...)

5 November

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

• 20:28
  avcodec/Makefile: add missing msmpeg4* dependencies to wmv1 encoder - Lou Logan git.videolan.org Git - ffmpeg.git/rss log
  avcodec/Makefile: add missing msmpeg4* dependencies to wmv1 encoder Signed-off-by: Lou Logan <louⓐlrcd.com> [DH] libavcodec/Makefile
• 20:21
  avcodec/Makefile: add missing h263data dependency to snow encoder - Lou Logan git.videolan.org Git - ffmpeg.git/rss log
  avcodec/Makefile: add missing h263data dependency to snow encoder Signed-off-by: Lou Logan <louⓐlrcd.com> [DH] libavcodec/Makefile
• 20:17
  avcodec/Makefile: add missing vorbis_data dependency to opus encoder - Lou Logan git.videolan.org Git - ffmpeg.git/rss log
  avcodec/Makefile: add missing vorbis_data dependency to opus encoder Signed-off-by: Lou Logan <louⓐlrcd.com> [DH] libavcodec/Makefile
• 20:01
  configure: select mdct for dca encoder - Lou Logan git.videolan.org Git - ffmpeg.git/rss log
  configure: select mdct for dca encoder Signed-off-by: Lou Logan <louⓐlrcd.com> [DH] configure
• 04:32
  avdevice/v4l2: Remove av_assert0 when format not supported - Andriy Gelman git.videolan.org Git - ffmpeg.git/rss log
  avdevice/v4l2: Remove av_assert0 when format not supported Before this commit an av_assert0 would fail if a v4l2 device did not support a target format. For example, ./ffmpeg -f v4l2 -codec:v h264 -i /dev/video0 -f mpegts - would signal an abort if /dev/video0 did not support h264. The new behaviour is to return an AVERROR(EINVAL) error code. An av_assert0 has been added to verify this return. Fixes #6629 Signed-off-by: Andriy Gelman <andriy.gelmanⓐgmail.com> Reviewed-by: Nicolas George <georgeⓐnsup.org> Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] (...)

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

• 23:11
  FFMPEG merge audio tracks into one and encode using NVENC - L0Lock Newest 'ffmpeg' Questions - Stack Overflow
  I often shoot films with several audio inputs, resulting in video files with multiple audio tracks supposed to be played all together at the same time. I usually go through editing those files and there I do whatever I want with those files, but sometimes I would also like to just send the files right away online without editing, in which case I would enjoy FFMPEG's fast & simple & quality encoding. But here's the catch: most online video streaming services don't support multiple audio tracks, so I have to merge them into one so we can hear everything. I also want to upscale the (...)
• 21:45
  ffmpeg Save incoming RTP audio only stream to file - hemu Newest 'ffmpeg' Questions - Stack Overflow
  I have setup kurento media server, which streams RTP audio (only audio). Now I am trying to test the received RTP stream. For that, I am saving the incoming RTP stream to file converting them to mp3. I am using the following command. sudo ffmpeg -loglevel debug -protocol_whitelist file,crypto,udp,rtp -reorder_queue_size 100 -acodec opus -i mySdpOffer.sdp -acodec mp3 -y -f segment -segment_atclocktime 1 -segment_time 900 -reset_timestamps 1 -strftime 1 out-%Y%m%dT%H%M.mp3 SDP offer: v=0 t=0 0 m=audio 8978 RTP/AVP 98 c=IN IP4 127.0.0.1 a=recvonly a=rtpmap:98 opus/48000/2 a=fmtp:98 (...)

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

• 00:25
  configure: select bswapdsp for ylc decoder - Lou Logan git.videolan.org Git - ffmpeg.git/rss log
  configure: select bswapdsp for ylc decoder Signed-off-by: Lou Logan <louⓐlrcd.com> [DH] configure
• 00:23
  configure: select fft for qdmc decoder - Lou Logan git.videolan.org Git - ffmpeg.git/rss log
  configure: select fft for qdmc decoder Signed-off-by: Lou Logan <louⓐlrcd.com> [DH] configure
• 00:20
  configure: select bswapdsp for mdec decoder - Lou Logan git.videolan.org Git - ffmpeg.git/rss log
  configure: select bswapdsp for mdec decoder Signed-off-by: Lou Logan <louⓐlrcd.com> [DH] configure
• 00:14
  configure: select bswapdsp for imm4 decoder - Lou Logan git.videolan.org Git - ffmpeg.git/rss log
  configure: select bswapdsp for imm4 decoder Signed-off-by: Lou Logan <louⓐlrcd.com> [DH] configure
• 00:12
  avcodec/Makefile: add missing ass dependency to ccaption decoder - Lou Logan git.videolan.org Git - ffmpeg.git/rss log
  avcodec/Makefile: add missing ass dependency to ccaption decoder Signed-off-by: Lou Logan <louⓐlrcd.com> [DH] libavcodec/Makefile
• 00:10
  configure: select audiodsp for acelp_kelvin decoder - Lou Logan git.videolan.org Git - ffmpeg.git/rss log
  configure: select audiodsp for acelp_kelvin decoder Signed-off-by: Lou Logan <louⓐlrcd.com> [DH] configure
• 00:06
  configure: select mdct for atrac3al decoder - Lou Logan git.videolan.org Git - ffmpeg.git/rss log
  configure: select mdct for atrac3al decoder Signed-off-by: Lou Logan <louⓐlrcd.com> [DH] configure
• 00:01
  configure: select mdct & sinewin for atrac3pal decoder - Lou Logan git.videolan.org Git - ffmpeg.git/rss log
  configure: select mdct & sinewin for atrac3pal decoder Signed-off-by: Lou Logan <louⓐlrcd.com> [DH] configure

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

• 19:16
  FFMPEG add image at the end of a video - Pimager Newest 'ffmpeg' Questions - Stack Overflow
  I need to add an image for one second at the end of a .mp4 video file using FFMPEG. My video size is WxH and my image size is MxM, so video and image sizes are different. I have tried different options in order to add the image at the end of the video as: ffmpeg -i "concat: videoIn.mp4|image.jpg" -c copy videoOut.mp4 or ffmpeg -i videoIn.mp4 -loop 1 -t 1 -i image.jpg -f lavfi -t 2 -i anullsrc -filter_complex "[0:v][0:a][1:v][2:a] concat = n=2:v=1:a=1[v][a] -c:v libx264 -c:a aac -strict -2 -map" [v] "-map" [a]" videoOut.mp4 but none gave me the result I need. Can someone help me? Kind (...)
• 18:43
  Can not add thumbnail image to MP4 using FFMPEG CLI - Youssof H. Newest 'ffmpeg' Questions - Stack Overflow
  After searching for hours, about the easiest solution for adding a thumbnail to an MP4 using a CLI, I came back to the start "FFMPEG". Though I skipped it at first wishing I will get a working tool but no, I will stick to "FFMPEG". Even after updating the repository ==> Same issue. I followed the exact code present at the official documentation that says: ffmpeg -i path/to/in.mp4 -i path/to/IMAGE.png -map 0 -map 1 -c copy -c:v:1 png -disposition:v:1 attached_pic path/to/out.mp4 The following error log shows: Stream mapping: Stream #0:0 -> #0:0 (copy) Stream #0:1 -> #0:1 (copy) Stream (...) -- official documentation
• 18:23
  Any solution for ffplay in Android? - ALirezaSO Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to add GoPro (Hero) inside my app and I wanted to have live streaming to make my solution complete. Thanks to KonradIT who was committed to this task, I found most of what i need there. Anyway, my main concern is about live streaming. He has a solution for this which is based on ffmpeg, but it has two main problems aside from some minor bug fixings. First, the output is not scalable and just shows a tiny picture which is not resizable. The other is its very low FPS (less than 17 FPS). We have a delay about six seconds too. On the PC side, we have a very simple solution using (...) -- KonradIT, solution
• 15:28
  os.path.join () on firstargv and list [closed] - user243 Newest 'ffmpeg' Questions - Stack Overflow
  I am iterating through a directory and sorting the filenames based on time. These sorted filenames are then stored as a list. The directory is specified as firstargv I need to take each filename from the list and join it with the directory specified as firstargv creating an entire path so that I can pass it as file to ffprobe later for further process. Below is the code I am using but I am not getting desired result, import subprocess, sys, os firstarg=sys.argv[1] a = str(firstarg) time = sorted(os.listdir( a ), key=lambda s: s[9:]) filename = time for y in filename: new_path = (...)
• 14:19
  HTTP error 403 Forbidden error with streamlink and ffmpeg python - james Newest 'ffmpeg' Questions - Stack Overflow
  I am currently trying to save the video of a live stream on the disk using the link to the m3u8 file, passing it to streamlink and then converting everything to ffmpeg, but when the streamer disconnects or the connection drops I get this error HTTP error 403 Forbidden Failed to reload playlist 0 and the program never ends, never reach the command line to convert the mkv video in mp4. How can I catch the exception and ignore it? This is my code url = 'url.m3u8' stream_url = streamlink.streams(url)['worst'].url ffmpeg_process = Popen(["path-to-ffmpeg.exe", "-i", stream_url, "-c", "copy", (...)
• 14:01
  PHP FFMPEG - Convert .mov to .mp4 (H264) - Alex Newest 'ffmpeg' Questions - Stack Overflow
  I've recently installed the PHP-FFMpeg lib on a server and used the following tutorial: https://github.com/PHP-FFMpeg/PHP-FFMpeg I managed to convert a .mov video (uploaded through a mobile device) to webm and ogg but when encoding to mp4 I always get an "Encoding Failed" message from the error object (in a try catch). This is the code I'm using after instantiating FFMPEG $video->filters()->resize(new FFMpeg\\Coordinate\\Dimension(756, 461), $mode = RESIZEMODE_SCALE_WIDTH)->synchronize(); (...) -- https://github.com/PHP-FFMpeg/PHP-FFMpeg
• 12:51
  FFmpeg: How to convert vertical video with black sides, to video 16:9, with blurred background sides - Andrey Newest 'ffmpeg' Questions - Stack Overflow
  How to make this by using FFmpeg? Example without FFmpeg: Adobe After Effects Sony Vegas Pro -- Adobe After Effects, Sony Vegas Pro
• 11:41
  Open raw audio with avformat_open_input - IMelker Newest 'ffmpeg' Questions - Stack Overflow
  I want to fill ffmpeg.formatCtx for raw(LINEAR16,48000khz) audio file using avformat_open_input(). I've tried to pass own AVInputFormat, but not suceeded in it. This is how i used to open file. std::string fn = "file:" + this->file.path; int r = avformat_open_input(&ffmpeg.formatCtx, fn.c_str(), nullptr, nullptr); Tried to find needed format with av_find_input_format(), but not succeeded to0. Without input format ffmpeg determines file as mp3. Is there convenient way to do such (...)
• 10:54
  How to decode MP4 file use GPU use ffmpeg.autogen? - wang ning Newest 'ffmpeg' Questions - Stack Overflow
  How to decode MP4 file use GPU? I use the demo of FFmpeg.AutoGen. It is good for code: private static unsafe void DecodeAllFramesToImages() But this is use CPU to decode. I want get a demo use GPU to decode. How can i do this ? This is FFmpeg.AutoGen demo: private static unsafe void DecodeAllFramesToImages() // decode all frames from url, please not it might local resorce, e.g. string url = "../../sample_mpeg4.mp4"; var url = "https://rtmp-luzhi.oss-cn-beijing.aliyuncs.com/eryuan2019/%E5%84%BF%E7%AB%A5%E6%89%8B%E8%B6%B3%E5%8F%A3%E7%97%85%E7%9A%84%E9%98%B2%E6%AD%A2%E4%B8%8E%E6%B2%BB%E7%96%97
• 09:57
  RTP Stream shows gray background then crashes - Carlo Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to play some RTP stream in python using opencv and an SDP file. I'm getting a gray window with some distorted images at the top(see attached image) and after a few seconds the program would crash and the gray window would close. I also tried to capture the packets of the stream via wireshark and extract the video information using media info. Note:The extracted video was playing smoothly. Media information using GSpot The SDP file contains: v=0 m=video 5000 RTP/AVP 103 c=IN IP4 239.194.115.71 a=rtpmap:103 H264/90000 These are the error codes shown in the terminal: (...) -- https://drive.google.com/open?id=1zppjXVgEcL8Ws-xP3e1J7NJF1UGdPzMA

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

• 05:40
  Revision 118431: [Salvatore] [source:_plugins_/saisies/trunk/lang/ saisies] Export ... - salvatoreⓐ… Revisions : saisies
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• 05:40
  Revision 118430: [Salvatore] [source:_plugins_/saisies/trunk/lang/ saisies] Export ... - hanjo.spipⓐ… Revisions : saisies
  [Salvatore] saisies Export depuis ​http://trad.spip.net de la langue nl -- Log

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

• 04:56
  Getting FFProbe Information With Python - Robin Hood Newest 'ffmpeg' Questions - Stack Overflow
  I've been attempting to figure this out for forever now (I'm new to programming) and I can't figure it out. I'm attempting to build a script that will test the file, and give me output from which I can get information like "Audio Format" that I can then put into the filename. However, I can't even get the script to return any file info. I've hit a wall at inserting an input file... So at this point I just need help getting it to spit out info based on the argvs I've thrown in. Hopefully I'll be able to figure out how to parse the audio info from that. My attempt that seems to be close: (...)
• 04:29
  HTML5 video after FFmpeg compress set currentTime behavior defferent in browsers - Qyellow Newest 'ffmpeg' Questions - Stack Overflow
  i have a mp4 video(oceans.mp4), and i use ffmpeg compress itffmpeg -i oceans.mp4 output.mp4(output.mp4). then i open the origin in the chrome and safari, in the console, i write: var video = document.querySelector('video') video.currentTime = 4.68 the video locate the same frame(at least looks the same) but i open the output, it looks different! so i do many test: it might be the broswers difference? may be not. the origin video looks totally the same it might be the some props of video? i use ffprobe -show_streams -select_streams v:0 output.mp4to show and compare two videos, only (...) -- oceans.mp4
• 02:12
  Playing audio with FFMPEG - Codevalley Newest 'ffmpeg' Questions - Stack Overflow
  I have been trying to port FFMPEG (for playing audio) into Android using NDK. I have had some success I could build FFMPEG and link it via NDK. I could call avcodec_decode_audio3() and decode a given audio file. So here I have a audio buffer output from the function. How do I play this now? Any ffmpeg guys can tell me the exact steps to decode and play audio. I am really clueless of what to do with the audio buffers created I got from avcodec_decode_audio3(). thanks a (...)

4 November

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

• 12:09
  doc/bitstream_filters: Fix copy an paste typo - Limin Wang git.videolan.org Git - ffmpeg.git/rss log
  doc/bitstream_filters: Fix copy an paste typo Signed-off-by: Limin Wang <lance.lmwangⓐgmail.com> Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] doc/bitstream_filters.texi

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

• 14:49
  Revision 118415: up de z - maieulⓐ… Revisions : saisies
  up de z -- Log
• 14:49
  Revision 118414: soyons précis - maieulⓐ… Revisions : saisies
  soyons précis -- Log
• 14:49
  Revision 118413: constructeur de saisie: regrouper toutes les informations sur les ... - maieulⓐ… Revisions : saisies
  constructeur de saisie: regrouper toutes les informations sur les messages d'obligation au même endroit. Cela évite que l'on remplisse le message d'erreur si un champ obligatoire n'es pas rempli en pensant remplir en réalité le message d'obligation -- Log
• 14:49
  Revision 118412: explication plus complète sur le message info_obligatoire - maieulⓐ… Revisions : saisies
  explication plus complète sur le message info_obligatoire -- Log
• 14:49
  Revision 118411: revert r115892. Si une personne met ' ', c'est soit volontaire (pour ... - maieulⓐ… Revisions : saisies
  revert r115892. Si une personne met ' ', c'est soit volontaire (pour ne pas avoir de texte, cf discussion avec marcimat), soit une erreur (lors du remplissage du formulaire de construction de formulaire). Pour le second cas, il vaut mieux travailler sur des messages d'explication dans l'interface. Cf commits à venir -- Log

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

• 21:37
  Revision 118424: paquet.xml et plugin.xml doivent avoir le même numéro de version - spip.franckⓐ… Revisions : socialtags
  paquet.xml et plugin.xml doivent avoir le même numéro de version -- Log

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

• 21:04
  ffmpeg - overlay a video with rounded corners - asi Newest 'ffmpeg' Questions - Stack Overflow
  I am successfully using overlaying a scaled (smaller) video on top of a larger one but am struggling to understand how could I give the small video a rounded corners mask. Edit thanks to ⓐloogan comment I've managed to get a working command that created applies a circular mask : ffmpeg -i main.mp4 -i vignette.mp4 -filter_complex [1:v]scale=300:-1[scaled]; [scaled]split [scaled0][scaled11]; [scaled0]trim=end_frame=1,geq='st(3,pow(X-(W/2),2)+pow(Y-(H/2),2));if(lte(ld(3),780*780),255,0)':3:3,loop=-1:1,setpts=N/FRAME_RATE/TB[mask]; [scaled1][mask]alphamerge[cutout]; (...)
• 17:14
  How to exclude night images to be passed for ffmpeg? - LA_ Newest 'ffmpeg' Questions - Stack Overflow
  My files have the following filenames - YYYYMMDDHHmmSS.jpg I pass them to ffmpeg (on MacOS) for timelapse creation: ffmpeg -framerate 500 -pattern_type glob -i '*.jpg' -c:v libx264 -pix_fmt yuv420p out.mp4 Now I would like to exclude night photos, for ex., if filename is between YYYYMMDD200000.jpg and YYYYMMDD080000.jpg, then files shouldn't be passed to ffmpeg. How could I achieve that (ideally - without moving files)? Upd. Using the following command now, but it captures the following hours only: 10-19. ffmpeg -framerate 500 -pattern_type glob -i (...)
• 16:19
  FFMPEG image to video with kenburns effects with dynamic number of images - Buu Newest 'ffmpeg' Questions - Stack Overflow
  Is it possible to create a video from images with kenburns effects? Anyone can help me to create a command with smooth transition is really appreciated. Thank you everyone. Here's the sample video I wan to achieved, https://trello-attachments.s3.amazonaws.com/545a93cff0b222f456c5ad82/5d8cfc0d75e80e63dae2fe6a/5a523ed328f24b0454c5c56cd0ee68e6/23442279.mp4 -- https://trello-attachments.s3.amazonaws.com/545a93cff0b222f456c5ad82/5d8cfc0d75e80e63dae2fe6a/5a523ed328f24b0454c5c56cd0ee68e6/23442279.mp4

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

• 08:11
  lavc/qsvenc: add the missing vp9 file - zhongli_devⓐ126.com git.videolan.org Git - ffmpeg.git/rss log
  lavc/qsvenc: add the missing vp9 file It is missed in commit 3358380 Signed-off-by: Zhong Li <zhongli_devⓐ126.com> [DH] libavcodec/qsvenc_vp9.c

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

• 13:23
  Encode video with H.264 using FFmpeg in Windows - cbuchart Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to encode a video with H.264 using FFmpeg (AV_CODEC_ID_H264), but I'm unable to init the codec correctly. No issues at all when using other codec like AV_CODEC_ID_MPEG1VIDEO. avcodec_register_all(); auto codec = avcodec_find_encoder(AV_CODEC_ID_H264); if (!codec) return false; auto codec_context = avcodec_alloc_context3(codec); if (!codec_context) return false; codec_context->codec_id = codec->id; codec_context->codec_type = AVMEDIA_TYPE_VIDEO; codec_context->width = w; // w = 1280 on tests codec_context->height = h; // h = 1024 on tests codec_context->bit_rate = w * h * 4; (...) -- https://ffmpeg.zeranoe.com/builds/
• 12:27
  How to make timelapse with ffmpeg from files with date-time names? - LA_ Newest 'ffmpeg' Questions - Stack Overflow
  I understand how to make timelapse video from the sequence of files. But what if my files have names like YYYYMMDDHHmmSS.jpg? How can I pass them in the correct order? I would prefer not to rename them (there are 55'000 files, almost 10 Gb). -- understand
• 12:04
  ffmpeg won't livestream to youtube - HeyItsDan Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to write a simple "script" that allows me to stream a music radio to YouTube or any other platform but whenever I'm trying to test it, it won't let me livestream at all, if anyone got a solution to this it would be very appreciated! StreamURL="xxxxxxxxxxxxxxxxxxxx" Key="xxxxxxxxxxxxxxxxxxxxxxxx" BackgroundPath="bg.jpg" NPPath="np.txt" ffmpeg \\ -re \\ -loop 1 \\ -framerate $FPS \\ -i $BackgroundPath \\ -s 1920x1080 \\ -ab 128k \\ -maxrate 2048k \\ -bufsize 2048k \\ -vf "drawbox=0:0:1920:100:black:fill, drawtext='fontfile=Arial\\:style=Bold Italic:text=Now (...)
• 12:00
  How to encode jpeg images to H264 very fast (transform images to video) - Paul Newest 'ffmpeg' Questions - Stack Overflow
  I have 30 JPEG images (.jpg) at a resolution of 480 x 640. Each image takes aboout 20KB (all of them takes about 600KB). I am using FFmpeg command to encode these images into a video in H264 format. I need this to be done very fast - about 1 second. Using the classic command: ffmpeg -y -f image2 -r 1/5 -i image_%d.jpg -c:v libx264 -r 30 video.mp4 takes about 90 seconds. After adding -preset ultrafast: ffmpeg -y -f image2 -r 1/5 -i image_%d.jpg -c:v libx264 -preset ultrafast -r 30 video.mp4 the encoding takes about 15 seconds which is much better, but still not enough I've tried (...)
• 11:46
  FFmpeg : do not terminate script using loop - Punit Gajjar Newest 'ffmpeg' Questions - Stack Overflow
  I have a collection of a few video URLs, and what I am trying to do is add a watermark to all the videos using a for loop, in a laravel inside the loop, this is my FFmpeg code. shell_exec('ffmpeg -y -i MY_VIDEO_PATH_HERE -i WATER_MARK_IMAGE_URL -filter_complex "overlay=18:H-h-30" -strict -2 -codec:a copy "MY_PATH_TO_STORE_VIDEO"'); All this code is done using a queue/job from the laravel. My Problem is, If the above command is getting failed and not able to add the watermark it does not move the next video to start adding the watermark, instead of it terminate the process and try to (...)
• 10:44
  ffmpeg ERROR: libnpp not found in windows - Gio Newest 'ffmpeg' Questions - Stack Overflow
  I`m trying to compile ffmpeg in windows with nvidia libraries for hardware acceleration using MinGW/msys. tried to follow the instruction on nvidias website (section: Getting Started with FFmpeg/libav using NVIDIA GPUs). configured with --enable-nonfree --disable-shared --enable-nvenc --enable-cuda --enable-cuvid --enable-libnpp --extra-cflags=-Ilocal/include --extra-cflags=-I../common/inc --extra-ldflags=-L../common/lib/x64 --prefix=ffmpeg but stopped at "ERROR: libnpp not found." where common folder is downloaded from NVIDIA Video Codec SDK but there is no npp libs or header files. is (...) -- nvidias website, NVIDIA Video Codec SDK
• 10:15
  How can I apply zoom in/out filter on specific frame in video using ffmpeg? - Axita Kathiriya Newest 'ffmpeg' Questions - Stack Overflow
  I want to apply zoom filter on specific frame on video using ffmpeg. for example, I want to make a slideshow of 5 images and each image will take 4-5 seconds for slide. I want zoom in/out effect on each image. So, i want to apply this effect at that time when particular image stay for 4-5 seconds. Please see this video link. I want same result like this using ffmpeg: https://youtu.be/nNTiyRDhlRY please refer first two slides of this link. -- https://youtu.be/nNTiyRDhlRY
• 09:14
  how to convert a video to wmv3 format on linux - Dan Erez Newest 'ffmpeg' Questions - Stack Overflow
  I am looking for a way to convert a video from any format ( specifically mp4 if it matters ) to wmv3. I'll save you some time - ffmpeg can only read wmv3 and can't write it. There's a patch but it's from 2007 and I don't feel comfortable to rely on it. Unless someone has experience of it working and can vouch for it. common names for the same format = Windows Media Video v9, wmv9, wmv3, msmpeg4 v3, asf
• 09:06
  Does ffmpeg support 7.x channels encoding in Dolby Digital format (.ac3)? - CC2023 Newest 'ffmpeg' Questions - Stack Overflow
  Using ffmpeg, I was able to encode 5.x channels from .wav to .ac3. But 7.x channels did not work. The encoded .ac3 missed channel 6th and 7th. Does ffmpeg support 7.x channel encoding for .ac3? My ffmpeg version git-2019-10-28-68f623d. Thanks.
• 06:49
  ffmpeg encoding for 3.0 and 3.1 channels in Dolby Digital format (.ac3) - CC2023 Newest 'ffmpeg' Questions - Stack Overflow
  I was able to encode .wav to .ac3 (Dolby Digital) via.zz ffmpeg for channel 2.0, 2.1, 4.0, 4.1, 5.0, 5.1, but not channel 3.0 and 3.1. When I played back .ac3 files on Onkyo 7.2 receiver, error on channel 3.0 and 3.1 was: 3.0 channels: right channel ok left channel ok center channel played back at subwoofer 3.1 channels: right channel ok left channel ok lfe channel ok center channel played back at surround left speaker (sL) This is command I used: ffmpeg -i 3_channel.wav -c:a ac3 3_channel.ac3 ffmpeg -i 3_1_channel.wav -c:a ac3 3_1_channel.ac3 My ffmpeg version (...)
• 04:27
  Why does ffmpeg show a corrupted video when receiving stream in MPEG TS format? - Carlo Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to stream a CCTV footage using RTP/MPEGTS. I can properly view it in vlc using the following command(I'm using windows 10): vlc --demux ts rtp://239.194.115.71:5000 The problem arises when I tried to receive and play it in ffmpeg using the following command: ffplay -f mpegts rtp://239.194.115.71:5000 I'm getting a semi decent video for the first 5 seconds: After 5 seconds the video gets droopy and corrupted (note that the top part of the video seems to be unaffected) Compete logs can be found here: https://pastebin.com/7CvbFsQK This is some of the logs from ffmpeg: (...) -- https://pastebin.com/7CvbFsQK, https://drive.google.com/open?id=1zppjXVgEcL8Ws-xP3e1J7NJF1UGdPzMA
• 03:56
  How to extract a sequence of frames with ffmpeg and get it with subprocess.Popen - Core taxxe Newest 'ffmpeg' Questions - Stack Overflow
  Since reading single frames is kinda slow , i tried to extract multiple frames at once. Now i got the Problem that ffmpeg does not return a list but a bunch of bytes. os : win10 python version 3.7.4 ffmpeg extracting frames from mp4 command = [self.FFMPEG_BINARY, '-loglevel', 'fatal', '-ss', str(datetime.timedelta(seconds=frame_index / self._fps)), '-i', os.path.join(self._path, self._filename), '-threads', str(self.THREAD_NUM), '-vf', 'scale=%d:%d' % (self._resolution[0], self._resolution[1]), '-vframes', str(num_frames), '-f', 'image2pipe', '-pix_fmt', 'rgb24', '-vcodec', 'rawvideo', (...)
• 00:52
  ffmpeg convert variable framerate .webm to constant framerate video - Dashadower Newest 'ffmpeg' Questions - Stack Overflow
  I have a .webm file of a recording of a game at 16fps. However, upon trying to process the video with OpenCV, it seems the video is recorded with a variable framerate, so when I try to use OpenCV to get a frame every second by getting the every 16th frame, it won't work since the video stream will end prematurely. Therefore, I'm trying to convert a variable-frame .webm video, which claims it has a framerate of 16 fps, to a video with a constant frame, so I can extract one frame for every second. I've tried the following ffmpeg command from (...) -- https://ffmpeg.zeranoe.com/forum/viewtopic.php?t=5518