error concealment regression test

Originally committed as revision 2606 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 12 insertions, 0 deletions

diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c
index 7c515aa7fc..5dbe9be91b 100644
--- a/libavcodec/mpegvideo.c
+++ b/libavcodec/mpegvideo.c
@@ -4002,6 +4002,18 @@ static void encode_picture(MpegEncContext *s, int picture_number)
 
                     assert((get_bit_count(&s->pb)&7) == 0);
                     current_packet_size= pbBufPtr(&s->pb) - s->ptr_lastgob;
+                    
+                    if(s->avctx->error_rate && s->resync_mb_x + s->resync_mb_y > 0){
+                        int r= get_bit_count(&s->pb)/8 + s->picture_number + s->codec_id + s->mb_x + s->mb_y;
+                        int d= 100 / s->avctx->error_rate;
+                        if(r % d == 0){
+                            current_packet_size=0;
+#ifndef ALT_BITSTREAM_WRITER
+                            s->pb.buf_ptr= s->ptr_lastgob;
+#endif
+                            assert(pbBufPtr(&s->pb) == s->ptr_lastgob);
+                        }
+                    }
         
                     if (s->avctx->rtp_callback)
                         s->avctx->rtp_callback(s->ptr_lastgob, current_packet_size, 0);