From ec7d002e55590bf9e2c2745065ec3463364a5273 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20Storsj=C3=B6?= <martin@martin.st>
Date: Wed, 15 May 2013 11:51:03 +0300
Subject: [PATCH] vc1, mss2: Check for any negative return value from
 ff_vc1_parse_frame_header
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This is required if we return other error codes than explicitly
-1, which so far has been the only other possible return value
besides 0.

Signed-off-by: Martin Storsjö <martin@martin.st>
---
 libavcodec/mss2.c   | 2 +-
 libavcodec/vc1dec.c | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/libavcodec/mss2.c b/libavcodec/mss2.c
index 44b6f1f62c2..2562209324c 100644
--- a/libavcodec/mss2.c
+++ b/libavcodec/mss2.c
@@ -388,7 +388,7 @@ static int decode_wmv9(AVCodecContext *avctx, const uint8_t *buf, int buf_size,
 
     s->loop_filter = avctx->skip_loop_filter < AVDISCARD_ALL;
 
-    if (ff_vc1_parse_frame_header(v, &s->gb) == -1) {
+    if (ff_vc1_parse_frame_header(v, &s->gb) < 0) {
         av_log(v->s.avctx, AV_LOG_ERROR, "header error\n");
         return AVERROR_INVALIDDATA;
     }
diff --git a/libavcodec/vc1dec.c b/libavcodec/vc1dec.c
index a3b60317525..86806b1d213 100644
--- a/libavcodec/vc1dec.c
+++ b/libavcodec/vc1dec.c
@@ -5464,11 +5464,11 @@ static int vc1_decode_frame(AVCodecContext *avctx, void *data,
     // do parse frame header
     v->pic_header_flag = 0;
     if (v->profile < PROFILE_ADVANCED) {
-        if (ff_vc1_parse_frame_header(v, &s->gb) == -1) {
+        if (ff_vc1_parse_frame_header(v, &s->gb) < 0) {
             goto err;
         }
     } else {
-        if (ff_vc1_parse_frame_header_adv(v, &s->gb) == -1) {
+        if (ff_vc1_parse_frame_header_adv(v, &s->gb) < 0) {
             goto err;
         }
     }
-- 
GitLab