Yuki Tsuchiya 632b8298b7 lavf/isom: support for demuxing and remuxing of MPEG-H 3D Audio in MP4 ...

Implemented according to the specification at https://www.iso.org/standard/69561.html
The 'mhm1' sample entry is registered with MP4RA, which is defined as MHAS encapsulated single stream MPEG-H 3D Audio.
'MHAS' stands for MPEG-H audio stream, which contains encoded audio data and corresponds metadata for decoding.
This patch enables extracting the MHAS bitstream from MP4 and remuxing into MP4.

Signed-off-by: James Almer <jamrial@gmail.com>

2019-12-12 11:44:57 -03:00

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