[FFmpeg-devel] [PATCH v8 3/4] lavf/isom: support for demuxing and remuxing of MPEG-H 3D Audio in MP4

James Almer jamrial at gmail.com
Thu Dec 12 17:57:51 EET 2019


On 12/12/2019 11:02 AM, Yuki Tsuchiya wrote:
> 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: Yuki Tsuchiya <Yuki.Tsuchiya at sony.com>
> ---
>  libavcodec/avcodec.h    | 1 +
>  libavcodec/codec_desc.c | 7 +++++++
>  libavcodec/version.h    | 4 ++--
>  libavformat/isom.c      | 1 +
>  libavformat/movenc.c    | 2 ++
>  5 files changed, 13 insertions(+), 2 deletions(-)

I split this in two patches (one for the new codec id, one for the
support in mp4) and pushed thanks.


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