[FFmpeg-devel] [PATCH 2/2] avformat/mxfenc: do not write index tables with the same InstanceUID

Marton Balint cus at passwd.hu
Mon Mar 14 20:49:50 EET 2022


Only index tables repeating previous index tables should use the same
InstaceUID. Use the index start position when generating the InstanceUID to fix
this.

Signed-off-by: Marton Balint <cus at passwd.hu>
---
 libavformat/mxfenc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavformat/mxfenc.c b/libavformat/mxfenc.c
index ba8e7babfb..5b972eadaa 100644
--- a/libavformat/mxfenc.c
+++ b/libavformat/mxfenc.c
@@ -1757,7 +1757,7 @@ static void mxf_write_index_table_segment(AVFormatContext *s)
 
     // instance id
     mxf_write_local_tag(s, 16, 0x3C0A);
-    mxf_write_uuid(pb, IndexTableSegment, 0);
+    mxf_write_uuid(pb, IndexTableSegment, mxf->last_indexed_edit_unit);
 
     // index edit rate
     mxf_write_local_tag(s, 8, 0x3F0B);
-- 
2.31.1



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