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avformat/movenc: Write 'av01' as a compatible brand when muxing AV1 

This is a requirement of the AV1-ISOBMFF spec. Section 2.1.
General Requirements & Brands states:

    * It SHALL have the av01 brand among the compatible brands array of the FileTypeBox

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
This commit is contained in:
Derek Buitenhuis 2020-06-17 14:43:28 +01:00
parent 157feea041
commit 94bac7b3f8
2 changed files with 7 additions and 3 deletions
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6
libavformat/movenc.c
View File

@ -4875,7 +4875,7 @@ static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
{
MOVMuxContext *mov = s->priv_data;
int64_t pos = avio_tell(pb);
int has_h264 = 0, has_video = 0;
int has_h264 = 0, has_av1 = 0, has_video = 0;
int i;
for (i = 0; i < s->nb_streams; i++) {
@ -4886,6 +4886,8 @@ static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
has_video = 1;
if (st->codecpar->codec_id == AV_CODEC_ID_H264)
has_h264 = 1;
if (st->codecpar->codec_id == AV_CODEC_ID_AV1)
has_av1 = 1;
}
avio_wb32(pb, 0); /* size */
@ -4909,6 +4911,8 @@ static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
ffio_wfourcc(pb, "cmfc");
if (mov->flags & FF_MOV_FLAG_FRAGMENT && !(mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS))
ffio_wfourcc(pb, "iso6");
if (has_av1)
ffio_wfourcc(pb, "av01");
} else {
if (mov->flags & FF_MOV_FLAG_FRAGMENT)
ffio_wfourcc(pb, "iso6");

4
tests/ref/lavf-fate/av1.mp4
View File

@ -1,3 +1,3 @@
0388467214421a19ba65d10a74dc35c0 *tests/data/lavf-fate/lavf.av1.mp4
55936 tests/data/lavf-fate/lavf.av1.mp4
4eed679a1d3e18edfd95b268167d8060 *tests/data/lavf-fate/lavf.av1.mp4
55940 tests/data/lavf-fate/lavf.av1.mp4
tests/data/lavf-fate/lavf.av1.mp4 CRC=0x7c27cc15