[SCM] libav/experimental: Handle WavPack INT32INFO chunks with nonzero post shift

[siretart at users.alioth.debian.org]

The following commit has been merged in the experimental branch:
commit 6e0f746d3eac0b07b9f5e4216d45ad70ca17fe62
Author: Kostya Shishkov <kostya.shishkov at gmail.com>
Date:   Thu Apr 23 18:21:16 2009 +0000

    Handle WavPack INT32INFO chunks with nonzero post shift
    
    Originally committed as revision 18668 to svn://svn.ffmpeg.org/ffmpeg/trunk

diff --git a/libavcodec/wavpack.c b/libavcodec/wavpack.c
index 4a7a9e5..e0db016 100644
--- a/libavcodec/wavpack.c
+++ b/libavcodec/wavpack.c
@@ -780,12 +780,14 @@ static int wavpack_decode_frame(AVCodecContext *avctx,
             got_hybrid = 1;
             break;
         case WP_ID_INT32INFO:
-            if(size != 4 || *buf){
+            if(size != 4){
                 av_log(avctx, AV_LOG_ERROR, "Invalid INT32INFO, size = %i, sent_bits = %i\n", size, *buf);
                 buf += ssize;
                 continue;
             }
-            if(buf[1])
+            if(buf[0])
+                s->post_shift = buf[0];
+            else if(buf[1])
                 s->shift = buf[1];
             else if(buf[2]){
                 s->and = s->or = 1;

-- 
Libav/FFmpeg packaging