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.
Signed-off-by: Yuki.Tsuchiya <yuki.tsuch...@sony.com> --- Changelog | 1 + libavcodec/avcodec.h | 1 + libavcodec/codec_desc.c | 7 +++++++ libavcodec/version.h | 2 +- libavformat/isom.c | 1 + 5 files changed, 11 insertions(+), 1 deletion(-) diff --git a/Changelog b/Changelog index 44e4184..2a79a1a 100644 --- a/Changelog +++ b/Changelog @@ -16,6 +16,7 @@ version <next>: - photosensitivity filter - anlms filter - arnndn filter +- Support for demuxing MPEG-H 3D Audio in mp4 version 4.2: diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h index bcb931f..8c1a85d 100644 --- a/libavcodec/avcodec.h +++ b/libavcodec/avcodec.h @@ -654,6 +654,7 @@ enum AVCodecID { AV_CODEC_ID_ATRAC9, AV_CODEC_ID_HCOM, AV_CODEC_ID_ACELP_KELVIN, + AV_CODEC_ID_MPEGH_3D_AUDIO, /* subtitle codecs */ AV_CODEC_ID_FIRST_SUBTITLE = 0x17000, ///< A dummy ID pointing at the start of subtitle codecs. diff --git a/libavcodec/codec_desc.c b/libavcodec/codec_desc.c index 0602ecb..a970fae 100644 --- a/libavcodec/codec_desc.c +++ b/libavcodec/codec_desc.c @@ -2998,6 +2998,13 @@ static const AVCodecDescriptor codec_descriptors[] = { .long_name = NULL_IF_CONFIG_SMALL("Sipro ACELP.KELVIN"), .props = AV_CODEC_PROP_LOSSY, }, + { + .id = AV_CODEC_ID_MPEGH_3D_AUDIO, + .type = AVMEDIA_TYPE_AUDIO, + .name = "mpegh_3d_audio", + .long_name = NULL_IF_CONFIG_SMALL("MPEG-H 3D Audio"), + .props = AV_CODEC_PROP_LOSSY, + }, /* subtitle codecs */ { diff --git a/libavcodec/version.h b/libavcodec/version.h index 2e047a6..0992d1e 100644 --- a/libavcodec/version.h +++ b/libavcodec/version.h @@ -29,7 +29,7 @@ #define LIBAVCODEC_VERSION_MAJOR 58 #define LIBAVCODEC_VERSION_MINOR 59 -#define LIBAVCODEC_VERSION_MICRO 102 +#define LIBAVCODEC_VERSION_MICRO 103 #define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \ LIBAVCODEC_VERSION_MINOR, \ diff --git a/libavformat/isom.c b/libavformat/isom.c index edd0d81..c1a64c7 100644 --- a/libavformat/isom.c +++ b/libavformat/isom.c @@ -371,6 +371,7 @@ const AVCodecTag ff_codec_movaudio_tags[] = { { AV_CODEC_ID_FLAC, MKTAG('f', 'L', 'a', 'C') }, /* nonstandard */ { AV_CODEC_ID_TRUEHD, MKTAG('m', 'l', 'p', 'a') }, /* mp4ra.org */ { AV_CODEC_ID_OPUS, MKTAG('O', 'p', 'u', 's') }, /* mp4ra.org */ + { AV_CODEC_ID_MPEGH_3D_AUDIO, MKTAG('m', 'h', 'm', '1') }, /* MPEG-H 3D Audio */ { AV_CODEC_ID_NONE, 0 }, }; -- 2.7.4 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".