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• ffmpeg HE-AAC 'unsupported codec' despite being compiled with support

  12 mai 2020, par Sebastian

  Lack of default support of AAC for ffmpeg is really annoying :

  



  My ffmpeg version :

  



  ffmpeg version git-2020-05-02-0d81edc Copyright (c) 2000-2020 the FFmpeg developers
  built with Apple clang version 11.0.0 (clang-1100.0.33.17)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/HEAD-0d81edc_1 --enable-shared --cc=clang --host-cflags=-fno-stack-check --host-ldflags= --enable-gpl --enable-libaom --enable-libmp3lame --enable-libopus --enable-libsnappy --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --disable-libjack --disable-indev=jack --enable-opencl --enable-videotoolbox --disable-htmlpages --enable-libbluray --enable-libfdk-aac --enable-libopenh264 --enable-libopenjpeg --enable-librsvg --enable-libspeex --enable-libsrt --enable-libtwolame --enable-libwavpack --enable-libwebp --enable-libxvid --enable-nonfree --enable-version3 --enable-libopencore-amrnb --enable-libopencore-amrwb


  



  I have several segment.ts files in edit.txt and I try to concatenate and convert to mpg :
ffmpeg -f concat -i edit.txt -c copy   output.mpg

  



  this does not work

  



  Input #0, concat, from 'edit.txt':
  Duration: N/A, start: 0.000000, bitrate: 121 kb/s
    Stream #0:0: Video: h264 (Main) ([27][0][0][0] / 0x001B), yuv420p(progressive), 1280x720, 30 fps, 29.97 tbr, 90k tbn, 60 tbc
    Stream #0:1: Audio: aac (HE-AAC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 121 kb/s
File 'output.mpg' already exists. Overwrite? [y/N] y
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
  Stream #0:1 -> #0:1 (aac (native) -> aac (libfdk_aac))
Press [q] to stop, [?] for help
[mpeg @ 0x7f8e44807e00] VBV buffer size not set, using default size of 230KB
If you want the mpeg file to be compliant to some specification
Like DVD, VCD or others, make sure you set the correct buffer size
[mpeg @ 0x7f8e44807e00] Unsupported audio codec. Must be one of mp1, mp2, mp3, 16-bit pcm_dvd, pcm_s16be, ac3 or dts.
Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument
Error initializing output stream 0:1 --
Conversion failed!


  



  so I tried with ffmpeg -f concat -i edit.txt -c:v copy -c:a libfdk_aac  output.mpg -> same effect.

  



  Why fraunhoffer codec exists and is mentioned on FFMPEG site if it is not supported ?
Is it any way to do this ?

  


• How to add current UTC Time in MKV file metadata using ffmpeg ?

  1er mai 2022, par Shahpari

  I am not sure if it's possible, but is there anyway we can add current UTC time inside the mkv metatag using ffmpeg ? i read https://wiki.multimedia.cx/index.php?title=FFmpeg_Metadata but i could not find anything.

  


  -metadata "Creation Time"="Need to add time tag/code"


  


  output will show

  


  Creation Time: UTC 2020-06-04 02:40:29


  


• Remove error when running ffmpeg in Windows script

  3 septembre 2021, par K7AAY

  I use a script to downsize audiobook files.
  
The original audiobook file was concatenated from multiple MP3 files into one MP3 file.
  
The script (in Windows) relies on ffmpeg (version git-2020-06-26-7447045) and contains

  


  FOR %%A IN (dir *.mp3) DO ffmpeg -i "%%A" -c:a libmp3lame -q:a 8 "_%%A"

  


  However, this error message appears :

  


  


  deprecated pixel format used, make sure you did set range correctly
  
[mp3 @ 000001f026d56400] Frame rate very high for a muxer not efficiently supporting it.
  
Please consider specifying a lower framerate, a different muxer or -vsync 2

  


  


  How do I modify the script for greater efficiency and remove that error message ? TY.