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mlp_parser: Fix infinite loop with 0 bytes_left.

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit e146ad95d7)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer
2011-12-29 21:26:30 +01:00
parent a4269652ab
commit 0064fcb486
1 changed files with 3 additions and 0 deletions
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libavcodec/mlp_parser.c
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@@ -263,6 +263,9 @@ static int mlp_parse(AVCodecParserContext *s,
mp->bytes_left = ((mp->pc.index > 0 ? mp->pc.buffer[0] : buf[0]) << 8)
| (mp->pc.index > 1 ? mp->pc.buffer[1] : buf[1-mp->pc.index]);
mp->bytes_left = (mp->bytes_left & 0xfff) * 2;
if (mp->bytes_left <= 0) { // prevent infinite loop
goto lost_sync;
}
mp->bytes_left -= mp->pc.index;
}