From 23990950e35eff0b96f843c396a62a6429ea25ec Mon Sep 17 00:00:00 2001
From: foo86 <foobaz86@gmail.com>
Date: Mon, 9 Oct 2017 16:12:19 +0300
Subject: [PATCH] avcodec/dca_parser: revert to conservative sync distance
estimation
Fixes regression introduced by commit a0349ae27c127df8c72de1c30dc4090360ec7ef4
when parsing 14-bit streams with excessive frame size stored in header.
Fixes ticket #6723.
---
libavcodec/dca_parser.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/libavcodec/dca_parser.c b/libavcodec/dca_parser.c
index 11ddb8f1882..80d665985e8 100644
--- a/libavcodec/dca_parser.c
+++ b/libavcodec/dca_parser.c
@@ -124,13 +124,13 @@ static int dca_find_frame_end(DCAParseContext *pc1, const uint8_t *buf,
break;
case DCA_SYNCWORD_CORE_14B_BE:
if (size == 4) {
- pc1->framesize = CORE_FRAMESIZE(STATE_14(state)) * 8 / 14 * 2;
+ pc1->framesize = CORE_FRAMESIZE(STATE_14(state));
start_found = 4;
}
break;
case DCA_SYNCWORD_CORE_14B_LE:
if (size == 4) {
- pc1->framesize = CORE_FRAMESIZE(STATE_14(STATE_LE(state))) * 8 / 14 * 2;
+ pc1->framesize = CORE_FRAMESIZE(STATE_14(STATE_LE(state)));
start_found = 4;
}
break;
--
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