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avformat/ivfenc: fix writing codec tag 

The value in AVCodecParameters->codec_tag may not be correct for IVF,
as it's the case when remuxing AV1 streams from mp4, so ignore it and
write the correct value based on codec ID instead.

Reviewed-by: Jan Ekström <jeebjp@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer 2018-09-23 21:54:24 -03:00
parent 54ca198e23
commit e50cb8b2f4
1 changed files with 1 additions and 1 deletions
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2
libavformat/ivfenc.c
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@ -46,7 +46,7 @@ static int ivf_write_header(AVFormatContext *s)
avio_write(pb, "DKIF", 4);
avio_wl16(pb, 0); // version
avio_wl16(pb, 32); // header length
avio_wl32(pb, par->codec_tag ? par->codec_tag :
avio_wl32(pb,
par->codec_id == AV_CODEC_ID_VP9 ? AV_RL32("VP90") :
par->codec_id == AV_CODEC_ID_VP8 ? AV_RL32("VP80") : AV_RL32("AV01"));
avio_wl16(pb, par->width);