#9703: Multichannel wav muxed in mkv
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Reporter: Jose | Type: defect
Peirote |
Status: new | Priority: normal
Component: | Version:
undetermined | unspecified
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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How to reproduce:
ffmpeg -i input.mkv -i L_R_C_Cb.wav -acodec copy output.mkv
The PCM track is created with CodecID A_PCM/INT/LIT and lost the channel
map.
That track is wrong extracted/played like with the default for 4 channels:
L R Ls Rs
The track must be muxed with CodecID A_MS/ACM to preserve the channel map
in the Codec Private data (a copy of the fmt chunk from
WAVE_EXTENSIBLE_FORMAT header)
That method is used OK with wformat (from wav header) not 1,3,0xfffe. I
suggest must be used also for 0xfffe (WAVE_EXTENSIBLE_FORMAT header)
More info here:
https://forum.doom9.org/showthread.php?p=1966534#post1966534
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Ticket URL: <https://trac.ffmpeg.org/ticket/9703>
FFmpeg <https://ffmpeg.org>
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