This happens when writing the trailer of a file containing audio but that has
not muxed any video packet.
Fixes ticket #4817.
----
This ticket also highlights the fact that mpeg2 video encoder produces no
output when it has received less frames than its delay.
---
libavformat/mxfenc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavformat/mxfenc.c b/libavformat/mxfenc.c
index 84ce979..f9b9516 100644
--- a/libavformat/mxfenc.c
+++ b/libavformat/mxfenc.c
@@ -2451,7 +2451,7 @@ static int mxf_write_packet(AVFormatContext *s, AVPacket
*pkt)
mxf->body_offset += KAG_SIZE; // size of system element
}
mxf->edit_units_count++;
- } else if (!mxf->edit_unit_byte_count && st->index == 1) {
+ } else if (!mxf->edit_unit_byte_count && mxf->edit_units_count &&
st->index == 1) {
mxf->index_entries[mxf->edit_units_count-1].slice_offset =
mxf->body_offset -
mxf->index_entries[mxf->edit_units_count-1].offset;
}
--
2.6.1
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