[SCM] libav/experimental: Process picture aspect ratio changes in H.264. This fixes playback of such streams with ffplay (but does not affect current ffmpeg).

[siretart at users.alioth.debian.org]

The following commit has been merged in the experimental branch:
commit 7c994c366c311ba7799aef80efaf80e265c0c329
Author: Janusz Krzysztofik <jkrzyszt at tis.icnet.pl>
Date:   Sun Feb 28 18:33:33 2010 +0000

    Process picture aspect ratio changes in H.264.
    This fixes playback of such streams with ffplay (but does not affect
    current ffmpeg).
    
    Patch by Janusz Krzysztofik, jkrzyszt A tis D icnet D pl
    
    Originally committed as revision 22112 to svn://svn.ffmpeg.org/ffmpeg/trunk

diff --git a/libavcodec/h264.c b/libavcodec/h264.c
index 5185e31..034142e 100644
--- a/libavcodec/h264.c
+++ b/libavcodec/h264.c
@@ -1775,7 +1775,9 @@ static int decode_slice_header(H264Context *h, H264Context *h0){
         s->height= 16*s->mb_height - 4*FFMIN(h->sps.crop_bottom, 3);
 
     if (s->context_initialized
-        && (   s->width != s->avctx->width || s->height != s->avctx->height)) {
+        && (   s->width != s->avctx->width || s->height != s->avctx->height
+                || h->sps.sar.num != s->avctx->sample_aspect_ratio.num
+                || h->sps.sar.den != s->avctx->sample_aspect_ratio.den)) {
         if(h != h0)
             return -1;   // width / height changed during parallelized decoding
         free_tables(h);

-- 
Libav/FFmpeg packaging