[FFmpeg-devel] [PATCH 1/2] mlp_parser: Fix infinite loop with 0 bytes_left.
Michael Niedermayer
michaelni at gmx.at
Thu Dec 29 22:40:15 CET 2011
Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
---
libavcodec/mlp_parser.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/libavcodec/mlp_parser.c b/libavcodec/mlp_parser.c
index 4ceea5e..96f5fae 100644
--- a/libavcodec/mlp_parser.c
+++ b/libavcodec/mlp_parser.c
@@ -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) {
+ goto lost_sync;
+ }
mp->bytes_left -= mp->pc.index;
}
--
1.7.5.4
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