diff options
| author | James Almer <jamrial@gmail.com> | 2019-08-01 00:49:08 -0300 |
|---|---|---|
| committer | James Almer <jamrial@gmail.com> | 2019-08-24 22:41:58 -0300 |
| commit | d1409fe952822f46a5367aa6ec436f5849c757da (patch) | |
| tree | 29c8f1cac766fe85fa287f3734a0c0b7b3939af9 /libavformat/mov.c | |
| parent | c300fe13b6294f6386803feff685b52b3571656c (diff) | |
avformat/mov: add demuxing support for Dolby TrueHD streams
Signed-off-by: James Almer <jamrial@gmail.com>
Diffstat (limited to 'libavformat/mov.c')
| -rw-r--r-- | libavformat/mov.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/libavformat/mov.c b/libavformat/mov.c index 24de5429d1..8a4cdc4b43 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -49,6 +49,7 @@ #include "libavcodec/ac3tab.h" #include "libavcodec/flac.h" #include "libavcodec/mpegaudiodecheader.h" +#include "libavcodec/mlp_parse.h" #include "avformat.h" #include "internal.h" #include "avio_internal.h" @@ -6683,6 +6684,38 @@ static int mov_read_dops(MOVContext *c, AVIOContext *pb, MOVAtom atom) return 0; } +static int mov_read_dmlp(MOVContext *c, AVIOContext *pb, MOVAtom atom) +{ + AVStream *st; + unsigned format_info; + int channel_assignment, channel_assignment1, channel_assignment2; + int ratebits; + + if (c->fc->nb_streams < 1) + return 0; + st = c->fc->streams[c->fc->nb_streams-1]; + + if (atom.size < 10) + return AVERROR_INVALIDDATA; + + format_info = avio_rb32(pb); + + ratebits = (format_info >> 28) & 0xF; + channel_assignment1 = (format_info >> 15) & 0x1F; + channel_assignment2 = format_info & 0x1FFF; + if (channel_assignment2) + channel_assignment = channel_assignment2; + else + channel_assignment = channel_assignment1; + + st->codecpar->frame_size = 40 << (ratebits & 0x7); + st->codecpar->sample_rate = mlp_samplerate(ratebits); + st->codecpar->channels = truehd_channels(channel_assignment); + st->codecpar->channel_layout = truehd_layout(channel_assignment); + + return 0; +} + static const MOVParseTableEntry mov_default_parse_table[] = { { MKTAG('A','C','L','R'), mov_read_aclr }, { MKTAG('A','P','R','G'), mov_read_avid }, @@ -6771,6 +6804,7 @@ static const MOVParseTableEntry mov_default_parse_table[] = { { MKTAG('s','t','3','d'), mov_read_st3d }, /* stereoscopic 3D video box */ { MKTAG('s','v','3','d'), mov_read_sv3d }, /* spherical video box */ { MKTAG('d','O','p','s'), mov_read_dops }, +{ MKTAG('d','m','l','p'), mov_read_dmlp }, { MKTAG('S','m','D','m'), mov_read_smdm }, { MKTAG('C','o','L','L'), mov_read_coll }, { MKTAG('v','p','c','C'), mov_read_vpcc }, |