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avformat/oggdec: Check ffio_ensure_seekback()

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Fixes Coverity issue #1492327.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2024-05-22 06:48:48 +02:00
parent f883746587
commit b47116be45
1 changed files with 3 additions and 1 deletions
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4
libavformat/oggdec.c
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@ -364,7 +364,9 @@ static int ogg_read_page(AVFormatContext *s, int *sid, int probing)
ffio_init_checksum(bc, ff_crc04C11DB7_update, 0x4fa9b05f); ffio_init_checksum(bc, ff_crc04C11DB7_update, 0x4fa9b05f);
/* To rewind if checksum is bad/check magic on switches - this is the max packet size */ /* To rewind if checksum is bad/check magic on switches - this is the max packet size */
ffio_ensure_seekback(bc, MAX_PAGE_SIZE); ret = ffio_ensure_seekback(bc, MAX_PAGE_SIZE);
if (ret < 0)
return ret;
start_pos = avio_tell(bc); start_pos = avio_tell(bc);
version = avio_r8(bc); version = avio_r8(bc);