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• Encoding WEBM to MP4 in NodeJS fails with too many packets buffered for output stream

  27 novembre 2019, par Igniter

  I’m encoding short WEBM clips in NodeJS on GCP using fluent-ffmpeg :

  ffmpeg(`/tmp/${id}/clip.webm`)
  
    .renice(5)
  
    .outputOptions([
  
      '-c:v libx264',
  
      '-c:a aac',
  
      '-pix_fmt yuv420p',
  
      '-profile:v main',
  
      '-level 3.1',
  
      '-movflags +faststart',
  
      '-max_muxing_queue_size 9999',
  
      '-af "aresample=async=1:min_hard_comp=0.100000:first_pts=0"'
  
    ])
  
    .on('end', () => {})
  
    .on('error', (error, stdout, stderr) => console.log(stderr))
  
    .save(`/tmp/${id}/clip.mp4`);

  This command works great for first 20-25 clips, but then it fails converting all consequent clips :

  STDERR output

  ffmpeg version N-47683-g0e8eb07980-static https://johnvansickle.com/ffmpeg/
  
  Copyright (c) 2000-2018 the FFmpeg developers
  
  built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516
  
  configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc-6 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gray --enable-libaom --enable-libfribidi --enable-libass --enable-libvmaf --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzimg\n libavutil 56. 24.101 / 56. 24.101\n libavcodec 58. 42.100 / 58. 42.100\n libavformat 58. 24.100 / 58. 24.100\n libavdevice 58. 6.101 / 58. 6.101\n libavfilter 7. 46.101 / 7. 46.101\n libswscale 5. 4.100 / 5. 4.100\n libswresample 3. 4.100 / 3. 4.100\n libpostproc 55. 4.100 / 55. 4.100
  
  Input #0, matroska,webm, from '/tmp/LbRMfZQWkZkAjShuLXcn/clip.webm':
  
  Metadata:
  
  Encoder : Chrome
  
  Duration: N/A, start: 0.000000, bitrate: N/A
  
  Stream #0:0(eng): Audio: opus, 48000 Hz, stereo, fltp (default)
  
  Stream #0:1(eng): Video: h264 (Constrained Baseline), yuv420p(progressive), 1366x768, SAR 1:1 DAR 683:384, 30.30 fps, 16.58 tbr, 1k tbn, 60 tbc (default)
  
  Stream mapping:
  
  Stream #0:1 -> #0:0 (h264 (native) -> h264 (libx264))
  
  Stream #0:0 -> #0:1 (opus (native) -> aac (native))
  
  Press [q] to stop, [?] for help
  
  Too many packets buffered for output stream 0:1.
  
  [aac @ 0x66ceec0] Qavg: 31427.693
  
  [aac @ 0x66ceec0] 2 frames left in the queue on closing
  
  Conversion failed!

  All clips are quite small, around 3-5 Mb each, so GCP temp folder size shouldn’t be the case
  I used -max_muxing_queue_size 9999 trying to solve it, but the problem persists
  Closer to the last of 20-25 clips FPS drops dramatically from normal to 3-5 FPS

  Also in all cases audio starts with 3-4 sec delay for some reason :
  -af "aresample=async=1:min_hard_comp=0.100000:first_pts=0" didn’t solve it

  Any suggestions would be greatly appreciated !

• Are there differences between the parameters of different versions of ffmpeg ?

  13 octobre 2019, par Mauro Alejandro Pereira

  I want to obtain a different raw video for each frame of an MP4 file.
  My instruction works in an old version of ffmpeg but not in the new one.

  In the mp4 file there are 137 frames. It is checked. The versions are installed on different machines.

  Versions 2.8.15 :

  $ ffmpeg -i ./video.mp4 -vf fps=30 -vframes 137 -vcodec rawvideo -s '1920x1080' -pix_fmt gray -threads 0 frame%08d.raw
  
  ffmpeg version 2.8.15-0ubuntu0.16.04.1 Copyright (c) 2000-2018 the FFmpeg developers
  
    built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.10) 20160609
  
    configuration: --prefix=/usr --extra-version=0ubuntu0.16.04.1 --build-suffix=-ffmpeg --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --cc=cc --cxx=g++ --enable-gpl --enable-shared --disable-stripping --disable-decoder=libopenjpeg --disable-decoder=libschroedinger --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzvbi --enable-openal --enable-opengl --enable-x11grab --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-frei0r --enable-libx264 --enable-libopencv
  
    libavutil      54. 31.100 / 54. 31.100
  
    libavcodec     56. 60.100 / 56. 60.100
  
    libavformat    56. 40.101 / 56. 40.101
  
    libavdevice    56.  4.100 / 56.  4.100
  
    libavfilter     5. 40.101 /  5. 40.101
  
    libavresample   2.  1.  0 /  2.  1.  0
  
    libswscale      3.  1.101 /  3.  1.101
  
    libswresample   1.  2.101 /  1.  2.101
  
    libpostproc    53.  3.100 / 53.  3.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from './video.mp4':
  
     Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: mp41mp42
  
      creation_time   : 2019-03-11 16:16:54
  
    Duration: 00:00:04.57, start: 0.000000, bitrate: 14014 kb/s
  
      Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 13816 kb/s, 30 fps, 30 tbr, 30k tbn, 60 tbc (default)
  
      Metadata:
  
        creation_time   : 2019-03-11 16:16:54
  
        encoder         : AVC Coding
  
      Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 192 kb/s (default)
  
      Metadata:
  
        creation_time   : 2019-03-11 16:16:54
  
  Output #0, image2, to 'frame%08d.raw':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: mp41mp42
  
      encoder         : Lavf56.40.101
  
      Stream #0:0(eng): Video: rawvideo (Y800 / 0x30303859), gray, 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 30 fps, 30 tbn, 30 tbc (default)
  
      Metadata:
  
        creation_time   : 2019-03-11 16:16:54
  
        encoder         : Lavc56.60.100 rawvideo
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 (native) -> rawvideo (native))
  
  Press [q] to stop, [?] for help
  
  frame=  137 fps= 73 q=-0.0 Lsize=N/A time=00:00:04.56 bitrate=N/A dup=1 drop=0    
  
  video:277425kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown

  Version 4.1.4 :

  $ ffmpeg -i ./video.mp4 -vf fps=30 -vframes 137 -vcodec rawvideo -s '1920x1080' -pix_fmt gray -threads 0 frame%08d.raw
  
  ffmpeg version 4.1.4-1~deb10u1 Copyright (c) 2000-2019 the FFmpeg developers
  
    built with gcc 8 (Debian 8.3.0-6)
  
    configuration: --prefix=/usr --extra-version='1~deb10u1' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
  
    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
  
    libavresample   4.  0.  0 /  4.  0.  0
  
    libswscale      5.  3.100 /  5.  3.100
  
    libswresample   3.  3.100 /  3.  3.100
  
    libpostproc    55.  3.100 / 55.  3.100
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x558d1a5bb880] st: 0 edit list: 1 Missing key frame while searching for timestamp: 0
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x558d1a5bb880] st: 0 edit list 1 Cannot find an index entry before timestamp: 0.
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from './video.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: mp41mp42
  
      creation_time   : 2019-03-11T16:16:54.000000Z
  
    Duration: 00:00:04.57, start: 0.000000, bitrate: 14014 kb/s
  
      Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 13816 kb/s, 30 fps, 30 tbr, 30k tbn, 60 tbc (default)
  
      Metadata:
  
        creation_time   : 2019-03-11T16:16:54.000000Z
  
        encoder         : AVC Coding
  
      Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 192 kb/s (default)
  
      Metadata:
  
        creation_time   : 2019-03-11T16:16:54.000000Z
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 (native) -> rawvideo (native))
  
  Press [q] to stop, [?] for help
  
  Output #0, image2, to 'frame%08d.raw':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: mp41mp42
  
      encoder         : Lavf58.20.100
  
      Stream #0:0(eng): Video: rawvideo (Y800 / 0x30303859), gray,     1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 497664 kb/s, 30 fps, 30 tbn, 30 tbc (default)
  
      Metadata:
  
        creation_time   : 2019-03-11T16:16:54.000000Z
  
        encoder         : Lavc58.35.100 rawvideo
  
  frame=  136 fps= 25 q=-0.0 Lsize=N/A time=00:00:04.53 bitrate=N/A speed=0.834x    
  
  video:275400kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown

  In the latest version, I expect 137 files but the amount is 136.

• FFmpeg not converting video on linux server [closed]

  27 octobre 2020, par htmlhelp32

  I am trying to use FFmpeg to convert a video and upload it to my site but it looks like I get this error. The upload part works it just won't convert the video. My machine is a Linux Debian. Any help would be appreciated.

  


  ffmpeg version 3.4.git-static https://johnvansickle.com/ffmpeg/ Copyright (c) 2000-2018 the FFmpeg developers
built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516
configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc-6 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gray --enable-libfribidi --enable-libass --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzimg
libavutil 56. 18.102 / 56. 18.102
libavcodec 58. 21.106 / 58. 21.106
libavformat 58. 17.101 / 58. 17.101
libavdevice 58. 4.101 / 58. 4.101
libavfilter 7. 26.100 / 7. 26.100
libswscale 5. 2.100 / 5. 2.100
libswresample 3. 2.100 / 3. 2.100
libpostproc 55. 2.100 / 55. 2.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'uploads/videos/5f98387d67c2f.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf58.17.101
Duration: 00:00:07.36, start: 0.000000, bitrate: 4307 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 4346 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc (default)
Metadata:
handler_name : ISO Media file produced by Google Inc.
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 2 kb/s (default)
Metadata:
handler_name : ISO Media file produced by Google Inc.
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> mjpeg (native))
Press [q] to stop, [?] for help
[swscaler @ 0xc9dfec0] deprecated pixel format used, make sure you did set range correctly
Output #0, image2, to 'uploads/videos/thumbnails/39-5f9838a2b4421.jpg':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf58.17.101
Stream #0:0(und): Video: mjpeg, yuvj420p(pc), 210x118 [SAR 944:945 DAR 16:9], q=2-31, 200 kb/s, 29.97 fps, 29.97 tbn, 29.97 tbc (default)
Metadata:
handler_name : ISO Media file produced by Google Inc.
encoder : Lavc58.21.106 mjpeg
Side data:
cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
frame= 0 fps=0.0 q=0.0 size=N/A time=00:00:00.00 bitrate=N/A speed= 0x [image2 @ 0xc1b2f80] Could not open file : uploads/videos/thumbnails/39-5f9838a2b4421.jpg
av_interleaved_write_frame(): Input/output error
frame= 1 fps=0.0 q=2.0 Lsize=N/A time=00:00:00.03 bitrate=N/A speed=0.0426x
video:6kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
Conversion failed!