[SCM] libav/master: vc1: Fix the skip condition
siretart at users.alioth.debian.org
siretart at users.alioth.debian.org
Wed Sep 17 01:18:09 UTC 2014
The following commit has been merged in the master branch:
commit 8c91414803e4cd26dcb27e6147424d09d19cd72a
Author: Luca Barbato <lu_zero at gentoo.org>
Date: Sun Aug 24 19:34:13 2014 +0200
vc1: Fix the skip condition
As written in the comment above, skip must be added only if a
start code is found.
diff --git a/libavcodec/vc1_parser.c b/libavcodec/vc1_parser.c
index 43ca0ed..a653282 100644
--- a/libavcodec/vc1_parser.c
+++ b/libavcodec/vc1_parser.c
@@ -123,6 +123,7 @@ static int vc1_parse(AVCodecParserContext *s,
uint8_t *unesc_buffer = vpc->unesc_buffer;
size_t unesc_index = vpc->unesc_index;
VC1ParseSearchState search_state = vpc->search_state;
+ int start_code_found;
int next = END_NOT_FOUND;
int i = vpc->bytes_to_skip;
@@ -133,8 +134,8 @@ static int vc1_parse(AVCodecParserContext *s,
next = 0;
}
while (i < buf_size) {
- int start_code_found = 0;
uint8_t b;
+ start_code_found = 0;
while (i < buf_size && unesc_index < UNESCAPED_THRESHOLD) {
b = buf[i++];
unesc_buffer[unesc_index++] = b;
@@ -232,7 +233,7 @@ static int vc1_parse(AVCodecParserContext *s,
* the start code we've already seen, or cause extra bytes to be
* inserted at the start of the unescaped buffer. */
vpc->bytes_to_skip = 4;
- if (next < 0)
+ if (next < 0 && start_code_found)
vpc->bytes_to_skip += next;
*poutbuf = buf;
--
Libav/FFmpeg packaging
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