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• Issue with audio codec in ffmpeg

  13 juillet 2021, par bloodstar

  To my little knowledge i believe this is an audio codec issue however since im not really familiar with ffmpeg, anything could be wrong.

  


    W:\PICTURES\\Manual Files>ffmpeg -i "C7984.mp4" -c copy -map 0 -segment_time 00:06:00 -f segment -reset_timestamps 1 C7984%03d.mp4

ffmpeg version 2021-07-11-git-79ebdbb9b9-full_build-www.gyan.dev Copyright (c) 2000-2021 the FFmpeg developers
  built with gcc 10.3.0 (Rev2, Built by MSYS2 project)
  configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-lzma --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libdav1d --enable-libzvbi --enable-librav1e --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-libglslang --enable-vulkan --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libilbc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint
  libavutil      57.  0.100 / 57.  0.100
  libavcodec     59.  3.101 / 59.  3.101
  libavformat    59.  4.100 / 59.  4.100
  libavdevice    59.  0.100 / 59.  0.100
  libavfilter     8.  0.103 /  8.  0.103
  libswscale      6.  0.100 /  6.  0.100
  libswresample   4.  0.100 /  4.  0.100
  libpostproc    56.  0.100 / 56.  0.100
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001f2b61fe100] st: 0 edit list: 1 Missing key frame while searching for timestamp: 1001
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001f2b61fe100] st: 0 edit list 1 Cannot find an index entry before timestamp: 1001.
Guessed Channel Layout for Input Stream #0.1 : stereo
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'C7984.mp4':
  Metadata:
    major_brand     : XAVC
    minor_version   : 16785407
    compatible_brands: XAVCmp42iso2
    creation_time   : 2021-07-09T18:30:52.000000Z
  Duration: 00:07:07.93, start: 0.000000, bitrate: 207012 kb/s
  Stream #0:0(und): Video: h264 (High 4:2:2) (avc1 / 0x31637661), yuv422p10le(pc), 3840x2160 [SAR 1:1 DAR 16:9], 200015 kb/s, 59.94 fps, 59.94 tbr, 60k tbn (default)
    Metadata:
      creation_time   : 2021-07-09T18:30:52.000000Z
      handler_name    : Video Media Handler
      vendor_id       : [0][0][0][0]
      encoder         : AVC Coding
  Stream #0:1(und): Audio: pcm_s16be (twos / 0x736F7774), 48000 Hz, stereo, s16, 1536 kb/s (default)
    Metadata:
      creation_time   : 2021-07-09T18:30:52.000000Z
      handler_name    : Sound Media Handler
      vendor_id       : [0][0][0][0]
  Stream #0:2(und): Data: none (rtmd / 0x646D7472), 5401 kb/s (default)
    Metadata:
      creation_time   : 2021-07-09T18:30:52.000000Z
      handler_name    : Timed Metadata Media Handler
      timecode        : 23:59:04:56
[segment @ 000001f2b6729440] Opening 'C7984000.mp4' for writing
[mp4 @ 000001f2b4627ec0] Could not find tag for codec pcm_s16be in stream #1, codec not currently supported in container
Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument
Error initializing output stream 0:2 --
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
  Stream #0:1 -> #0:1 (copy)
  Stream #0:2 -> #0:2 (copy)
    Last message repeated 1 times


  


  Should the code be changed to convert the audio to flac prior to convert the clip ? thanks

  


• ffmpeg ignores video stream bitrate input doubling the -b:v parameter that I set during encoding

  27 juillet 2021, par QRrabbit

  My question is, how do I force ffmpeg to encode a video at a specific kb/s ?
The problem is that my output is almost twice the size of the input 1.2Gb

  


  This is my input (from ffprobe) :

  


      Stream #0:0(eng): Video: prores (4444) (ap4h / 0x68347061), yuva444p12le(tv, bt709, progressive), 1920x1080, 316752 kb/s, SAR 1:1 DAR 16:9, 29.97 fps, 29.97 tbr, 30k tbn, 30k tbc (default)
    Metadata:
      creation_time   : 2021-07-26T23:59:52.000000Z
      handler_name    : Apple Video Media Handler
      timecode        : 00:00:00:00


  


  My encoding command string :

  


  ffmpeg -i input.mov -i watermark.png -filter_complex " \
[0][1]overlay=50:50:enable='between(t, 0, 100)'" -vcodec prores_ks -profile:v 4 \
-pix_fmt yuva444p12le -b:v 316752 -maxrate 316752 -minrate 316752 -r 29.97 \
-top 1 -color_range 1 -color_primaries bt709 -color_trc bt709 -colorspace bt709 \
-map_metadata 0 -c:a copy -timecode 00:00:00.00 -c:s copy -y output.mov


  


  This is the output :

  


      Stream #0:0: Video: prores (4444) (ap4h / 0x68347061), yuva444p12le(tv, bt709, progressive), 1920x1080, 591460 kb/s, SAR 1:1 DAR 16:9, 29.97 fps, 29.97 tbr, 11988 tbn, 11988 tbc (default)
    Metadata:
      creation_time   : 2021-07-26T23:59:52.000000Z
      handler_name    : VideoHandler
      timecode        : 00:00:00:00


  


  Things I've tried :
-b:v 316752925 -maxrate 316752925 -minrate 316752925
-b:v 316752 -maxrate 316752 -minrate 316752
-maxrate 316752925 alone or in various combination with the above.

  


  Any help is greatly appreciated,

  


• Can't get FFMPEG buildpack working in Heroku Node.js server (using Fluent-FFMPEG)

  30 juillet 2021, par Rayhan Memon

  I'm using a library called 'fluent-ffmpeg' on my Nodejs server that makes it easier to use an audio/video editing tool called FFmpeg, which is downloaded locally on my computer.

  


  When running on my computer, I point fluent-ffmpeg to the local executable files of FFmpeg and FFprobe on my computer, like so :

  


  import ffmpeg from "fluent-ffmpeg";

// When running locally, set FFmpeg and FFprobe path to the local executable files
ffmpeg.setFfmpegPath("C:/Program Files/FFMPEG/ffmpeg.exe");
ffmpeg.setFfprobePath("C:/Program Files/FFMPEG/ffprobe.exe");


  


  When deploying to Heroku, I must use an FFmpeg 'buildpack'.

  


  I've tried two :

  


  

  1. https://github.com/jonathanong/heroku-buildpack-ffmpeg-latest

  


  2. https://github.com/HasibulKabir/heroku-buildpack-ffmpeg-ffprobe

  


  


  Neither have worked for me. Whenever I use an FFmpeg command, I get the following error in my heroku logs :

  


  2021-07-24T15:22:52.970990+00:00 app[web.1]:   code: 'ENOENT',
2021-07-24T15:22:52.970990+00:00 app[web.1]:   syscall: 'spawn C:/Program Files/FFMPEG/',
2021-07-24T15:22:52.970990+00:00 app[web.1]:   path: 'C:/Program Files/FFMPEG/',
2021-07-24T15:22:52.970991+00:00 app[web.1]:   spawnargs: [
2021-07-24T15:22:52.970991+00:00 app[web.1]:     '-show_streams',
2021-07-24T15:22:52.970991+00:00 app[web.1]:     '-show_format',
2021-07-24T15:22:52.970992+00:00 app[web.1]:     'temp/cf3b5f1ae270df824921364573a4366b'
2021-07-24T15:22:52.970992+00:00 app[web.1]:   ]
2021-07-24T15:22:52.970992+00:00 app[web.1]: }


  


  How can I go about using fluent-ffmpeg in my Nodejs server when deploying to Heroku ?

  


  Thank you for the help in advance !