[FFmpeg-devel] [PATCH] lavf/isom: support for demuxing MPEG-H 3D Audio in MP4

Carl Eugen Hoyos ceffmpeg at gmail.com
Thu Oct 17 13:33:48 EEST 2019



> Am 17.10.2019 um 09:57 schrieb Yuki.Tsuchiya <Yuki.Tsuchiya at sony.com>:
> 
> 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.

Please provide a sample file.

If this patch allows remuxing with ffmpeg (I believe it does) but if the output file is not compatible with something that supports mpeg-h 3D audio, the patch has to be changed before it can be committed.

Carl Eugen


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