DOS ain't dead

ffmpeg for DOS ! (Developers)

posted by glennmcc  , North Jackson, Ohio (USA), 10.09.2021, 21:00

Has anyone compiled a more recent ffmpeg.exe for DOS
that supports the VP9 codec in most newer WEBM videos ?

The most recent DOS build of ffmpeg that I can find does not have a VP9 decoder.

Therefore, this is the failed attempt to convert a VP9 WEBM into MP4

ffmpeg version 2.2.16 Copyright (c) 2000-2015 the FFmpeg developers
built on Dec 21 2016 04:08:32 with GCC 4.8.5 (GCC), DOS/DJGPP port by RayeR
configuration: --enable-nonfree --disable-pthreads --disable-w32threads --disable-os2threads --disable-network --disable-vda --disable-dxva2 --disable-avx --disable-ffserver --enable-libmp3lame --enable-libfaac --enable-libvpx --enable-libvorbis --enable-libtheora --enable-libwavpack --enable-libx264
libavutil 52. 66.100 / 52. 66.100
libavcodec 55. 52.102 / 55. 52.102
libavformat 55. 33.100 / 55. 33.100
libavdevice 55. 10.100 / 55. 10.100
libavfilter 4. 2.100 / 4. 2.100
libavresample 1. 2. 0 / 1. 2. 0
libswscale 2. 5.102 / 2. 5.102
libswresample 0. 18.100 / 0. 18.100
libpostproc 52. 3.100 / 52. 3.100
[matroska,webm @ 173f360] Unknown entry 0x55B0
[vp9 @ 1740750] Warning: not compiled with thread support, using thread emulation
Guessed Channel Layout for Input Stream #0.1 : stereo
Input #0, matroska,webm, from 'd:\big_bang.web':
Metadata:
encoder : Lavf57.71.100
Duration: 00:01:57.74, start: 0.007000, bitrate: 432 kb/s
Stream #0:0(eng): Video: vp9, yuv420p, 640x360, SAR 1:1 DAR 16:9, 25 fps, 25 tbr, 1k tbn, 1k tbc (default)
Stream #0:1(eng): Audio: opus, 48000 Hz, stereo (default)
No decoder for stream #0:1, filtering impossible
Error opening filters!
Conversion failed!


Also, the most recent mplayer.exe I have is the one from Khusraw in 2012
which also does not have a VP9 decoder.

If we had a more recent ffmpeg with VP9 decoder, at-least we could convert
those VP9 WEBM videos to a format that Khusraw's mplayer.exe could play.

---
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http://glennmcc.org/

Complete thread:

• ffmpeg for DOS ! - glennmcc, 10.09.2021, 21:00 (Developers)
  • ffmpeg for DOS ! - Zyzzle, 12.09.2021, 21:01
    • ffmpeg for DOS ! - glennmcc, 23.09.2021, 18:49
      • ffmpeg for DOS ! - glennmcc, 24.09.2021, 04:14