[FFmpeg-devel] [PATCH v3] lavf/matroskadec: Set A_QUICKTIME bit depth

Mats Peterson matsp888 at yahoo.com
Fri Jan 15 23:06:09 CET 2016

On 01/15/2016 01:06 PM, Mats Peterson wrote:
> FFmpeg curiously uses 'sowt' as the fourcc when writing 8-bit signed
> QuickTime data, so cater for this as well. Description follows:
> Since mkvmerge doesn't set the bit depth for A_QUICKTIME audio (as far
> as I know), the track->audio.bitdepth variable will be zero, and its
> value needs to be retrieved from the sound sample description. Also,
> confine the 0x00000000 to 'raw '/'twos' fourcc mapping to old version 0
> sound sample descriptions, since they are the only valid sample
> descriptions for this type of mapping.
> Also, 'twos' and 'sowt' audio can be signed 8-bit.
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PLEASE WAIT WITH THIS ONE. I have another one coming.


Mats Peterson

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