[FFmpeg-devel] [PATCH v3] lavf/mov: Audio and fourcc 0x00000000

Mats Peterson matsp888 at yahoo.com
Fri Jan 8 13:03:58 CET 2016

In many older QuickTime files, the audio format, or "fourcc", is
0x00000000. The QuickTime File Format Specification states the following
regarding this situation:

"This format descriptor should not be used, but may be found in some
files. Samples are assumed to be stored in either 'raw ' or 'twos'
format, depending on the sample size field in the sound description."

MPlayer handles this logic by itself, but FFmpeg/FFplay currently does


Mats Peterson
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