[FFmpeg-devel] [PATCH] avformat/movenc: Always look up mov tag for AV1.

[Thomas Daede]

Some other containers for AV1, in particular ivf, use a different
capitalization of the AV1 codec tag. When these files are remuxed
into mp4, they result in invalid files.

This patch normalizes the tag by forcing its lookup in
ff_codec_movvideo_tags.
---
 libavformat/movenc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libavformat/movenc.c b/libavformat/movenc.c
index d530f40cab..ff36e1376c 100644
--- a/libavformat/movenc.c
+++ b/libavformat/movenc.c
@@ -1542,7 +1542,8 @@ static int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
 {
     int tag = track->par->codec_tag;
 
-    if (!tag || (s->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
+    if (!tag || track->par->codec_id == AV_CODEC_ID_AV1 ||
+                (s->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
                  (track->par->codec_id == AV_CODEC_ID_DVVIDEO ||
                   track->par->codec_id == AV_CODEC_ID_RAWVIDEO ||
                   track->par->codec_id == AV_CODEC_ID_H263 ||
-- 
2.17.1