[FFmpeg-devel] [FFmpeg-cvslog] avcodec/dca: add new decoder based on libdcadec

Michael Niedermayer michael at niedermayer.cc
Sun Jan 31 19:51:52 CET 2016


On Sun, Jan 31, 2016 at 05:14:14PM +0100, foo86 wrote:
> ffmpeg | branch: master | foo86 <foobaz86 at gmail.com> | Sat Jan 16 11:54:38 2016 +0300| [ae5b2c52501d5009fe712334428138a9b758849b] | committer: Hendrik Leppkes
> 
> avcodec/dca: add new decoder based on libdcadec
> 
> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=ae5b2c52501d5009fe712334428138a9b758849b
> ---
> 


this breaks request_channel_layout

example:
./ffmpeg -i dts/lotr_5.1_768.dts test.wav

Input #0, dts, from '/home/michael/videos/dts/lotr_5.1_768.dts':
  Duration: 00:02:05.18, start: 0.000000, bitrate: 768 kb/s
    Stream #0:0: Audio: dts (DTS-ES), 48000 Hz, 6.1, fltp, 768 kb/s


vs.
./ffmpeg -request_channel_layout 3 -i dts/lotr_5.1_768.dts test-req3.wav

Input #0, dts, from '/home/michael/videos/dts/lotr_5.1_768.dts':
  Duration: 00:02:05.18, start: 0.000000, bitrate: 768 kb/s
    Stream #0:0: Audio: dts (DTS), 48000 Hz, 5.1(side), fltp, 768 kb/s

vs.
./ffmpeg-ref -request_channel_layout 3 -i dts/lotr_5.1_768.dts test-ref-req3.wav

Input #0, dts, from '/home/michael/videos/dts/lotr_5.1_768.dts':
  Duration: 00:02:05.18, start: 0.000000, bitrate: 768 kb/s
    Stream #0:0: Audio: dts (DTS-ES), 48000 Hz, stereo, fltp, 768 kb/s


previously it resulted in 2 channels now it produces 5.1 when
requesting stereo

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Into a blind darkness they enter who follow after the Ignorance,
they as if into a greater darkness enter who devote themselves
to the Knowledge alone. -- Isha Upanishad
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