As defined in "VP Codec ISO Media File Format Binding v1.0"
https://github.com/webmproject/vp9-dash/blob/master/VPCodecISOMediaFileFormatBinding.md
Signed-off-by: James Almer <jamr...@gmail.com>
---
libavformat/movenc.c | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
diff --git a/libavformat/movenc.c b/libavformat/movenc.c
index cd436df7a4..eab7bbc8a7 100644
--- a/libavformat/movenc.c
+++ b/libavformat/movenc.c
@@ -1154,6 +1154,27 @@ static int mov_write_smdm_tag(AVFormatContext *s,
AVIOContext *pb, MOVTrack *tra
return update_size(pb, pos);
}
+static int mov_write_coll_tag(AVIOContext *pb, MOVTrack *track)
+{
+ int size = 0;
+ int64_t pos;
+ const AVContentLightMetadata *coll =
+ (const AVContentLightMetadata *) av_stream_get_side_data(track->st,
+ AV_PKT_DATA_CONTENT_LIGHT_LEVEL,
+ &size);
+ if (!size)
+ return 0;
+
+ pos = avio_tell(pb);
+
+ avio_wb32(pb, 0);
+ ffio_wfourcc(pb, "CoLL");
+ avio_wb32(pb, 0); /* version & flags */
+ avio_wb16(pb, coll->MaxCLL);
+ avio_wb16(pb, coll->MaxFALL);
+ return update_size(pb, pos);
+}
+
static int mov_write_hvcc_tag(AVIOContext *pb, MOVTrack *track)
{
int64_t pos = avio_tell(pb);
@@ -2001,6 +2022,7 @@ static int mov_write_video_tag(AVIOContext *pb,
MOVMuxContext *mov, MOVTrack *tr
} else if (track->par->codec_id == AV_CODEC_ID_VP9) {
mov_write_vpcc_tag(mov->fc, pb, track);
mov_write_smdm_tag(mov->fc, pb, track);
+ mov_write_coll_tag(pb, track);
} else if (track->par->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
mov_write_dvc1_tag(pb, track);
else if (track->par->codec_id == AV_CODEC_ID_VP6F ||
--
2.12.1
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