blob: edc2e76faff767de3da6d42ccf433e04d83d4161 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
|
From 280e670dd039d7ba628bc47f1cdee72df9658094 Mon Sep 17 00:00:00 2001
From: John Stebbins <jstebbins.hb@gmail.com>
Date: Wed, 2 Jan 2013 11:32:40 -0800
Subject: [PATCH] dca_parser: Handle loss of bitstream sync better
A change in framesize caused a perpetual loss of synchronization. So
when the sync pattern is not found where it is expected, reset and
recalculate the framesize.
---
libavcodec/dca_parser.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/libavcodec/dca_parser.c b/libavcodec/dca_parser.c
index ab235cf..ad441f8 100644
--- a/libavcodec/dca_parser.c
+++ b/libavcodec/dca_parser.c
@@ -88,6 +88,17 @@ static int dca_find_frame_end(DCAParseContext * pc1, const uint8_t * buf,
pc1->size = 0;
return i - 3;
}
+ else if (pc1->size == pc1->framesize)
+ {
+ // Lost sync, search for sync and reset framesize as it may
+ // have changed mid-stream
+ pc->frame_start_found = 0;
+ pc->state = -1;
+ pc1->size = 0;
+ pc1->framesize = 0;
+ pc1->lastmarker = 0;
+ return END_NOT_FOUND;
+ }
}
}
pc->frame_start_found = start_found;
--
1.7.11.7
|
