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avformat/oggenc: ignore empty packets

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Some encoders, like flac, can send side data only packets at the end.
Eventually, said extradata update should ideally be used to update the header
when writting to seekable output, but for now, ignore them.

Should fix the undefined behavior of passing NULL to memcpy().

Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer 2022-12-09 21:48:43 -03:00
parent cd9dd03006
commit 18f24527eb
2 changed files with 2 additions and 2 deletions
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2
libavformat/oggenc.c
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@ -687,7 +687,7 @@ static int ogg_write_packet(AVFormatContext *s, AVPacket *pkt)
{
int i;
if (pkt)
if (pkt && pkt->size)
return ogg_write_packet_internal(s, pkt);
for (i = 0; i < s->nb_streams; i++) {

2
tests/ref/lavf/ogg
View File

@ -1,3 +1,3 @@
81b9366cacb23644c2803585dced9996 *tests/data/lavf/lavf.ogg
507a906a705d16f3a3b0c4114c738110 *tests/data/lavf/lavf.ogg
13516 tests/data/lavf/lavf.ogg
tests/data/lavf/lavf.ogg CRC=0x3a1da17e