[SCM] libav/experimental: Check return value of get_chunk_header(). Since enum can be unsigned, the current code wouldn't always error out on errors.

[siretart at users.alioth.debian.org]

The following commit has been merged in the experimental branch:
commit 3dedbeff7b74d7820b4395c87614edfa8e688fa4
Author: Ronald S. Bultje <rsbultje at gmail.com>
Date:   Wed Sep 29 15:43:36 2010 +0000

    Check return value of get_chunk_header(). Since enum can be unsigned, the
    current code wouldn't always error out on errors.
    
    Based on patch by Stephen d'Angelo <sdangelo evertz com>.
    
    Originally committed as revision 25260 to svn://svn.ffmpeg.org/ffmpeg/trunk

diff --git a/libavformat/mmsh.c b/libavformat/mmsh.c
index dbbaab6..3581431 100644
--- a/libavformat/mmsh.c
+++ b/libavformat/mmsh.c
@@ -147,9 +147,9 @@ static int get_http_header_data(MMSHContext *mmsh)
 
     for (;;) {
         len = 0;
-        chunk_type = get_chunk_header(mmsh, &len);
-        if (chunk_type < 0) {
-            return chunk_type;
+        res = chunk_type = get_chunk_header(mmsh, &len);
+        if (res < 0) {
+            return res;
         } else if (chunk_type == CHUNK_TYPE_ASF_HEADER){
             // get asf header and stored it
             if (!mms->header_parsed) {

-- 
Libav/FFmpeg packaging