[SCM] libav/experimental: vp3: Allocate a dummy reference frame if we have no keyframe

[siretart at users.alioth.debian.org]

The following commit has been merged in the experimental branch:
commit 7a4e8b59131cccd750cfcb78e41049982c66c1aa
Author: David Conrad <lessen42 at gmail.com>
Date:   Tue Mar 9 00:29:22 2010 +0000

    vp3: Allocate a dummy reference frame if we have no keyframe
    
    Originally committed as revision 22360 to svn://svn.ffmpeg.org/ffmpeg/trunk

diff --git a/libavcodec/vp3.c b/libavcodec/vp3.c
index b874ee7..0143809 100644
--- a/libavcodec/vp3.c
+++ b/libavcodec/vp3.c
@@ -1835,8 +1835,14 @@ static int vp3_decode_frame(AVCodecContext *avctx,
         }
     } else {
         if (!s->golden_frame.data[0]) {
-            av_log(s->avctx, AV_LOG_ERROR, "vp3: first frame not a keyframe\n");
-            goto error;
+            av_log(s->avctx, AV_LOG_WARNING, "vp3: first frame not a keyframe\n");
+            s->golden_frame.reference = 3;
+            if (avctx->get_buffer(avctx, &s->golden_frame) < 0) {
+                av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed\n");
+                goto error;
+            }
+            s->last_frame = s->golden_frame;
+            s->last_frame.type = FF_BUFFER_TYPE_COPY;
         }
     }
 

-- 
Libav/FFmpeg packaging