diff options
Diffstat (limited to 'libavformat/movenc.c')
| -rw-r--r-- | libavformat/movenc.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/libavformat/movenc.c b/libavformat/movenc.c index 5d770aa90e..897a204e1d 100644 --- a/libavformat/movenc.c +++ b/libavformat/movenc.c @@ -37,6 +37,7 @@ #include "libavutil/opt.h" #include "libavutil/dict.h" #include "rtpenc.h" +#include "mov_chan.h" #undef NDEBUG #include <assert.h> @@ -338,6 +339,31 @@ static int mov_write_ms_tag(AVIOContext *pb, MOVTrack *track) return updateSize(pb, pos); } +static int mov_write_chan_tag(AVIOContext *pb, MOVTrack *track) +{ + uint32_t layout_tag, bitmap; + int64_t pos = avio_tell(pb); + + layout_tag = ff_mov_get_channel_layout_tag(track->enc->codec_id, + track->enc->channel_layout, + &bitmap); + if (!layout_tag) { + av_log(track->enc, AV_LOG_WARNING, "not writing 'chan' tag due to " + "lack of channel information\n"); + return 0; + } + + avio_wb32(pb, 0); // Size + ffio_wfourcc(pb, "chan"); // Type + avio_w8(pb, 0); // Version + avio_wb24(pb, 0); // Flags + avio_wb32(pb, layout_tag); // mChannelLayoutTag + avio_wb32(pb, bitmap); // mChannelBitmap + avio_wb32(pb, 0); // mNumberChannelDescriptions + + return updateSize(pb, pos); +} + static int mov_write_wave_tag(AVIOContext *pb, MOVTrack *track) { int64_t pos = avio_tell(pb); |