Fix mb_height for interlaced mpeg2.

This correctly fixes issue961, thanks to steven warren for spoting my
mistake.

git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18381 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

diff --git a/libavcodec/mpeg12.c b/libavcodec/mpeg12.c
index f4e4958bfaccfca21683ac777f41ba0017e52bf5..573ae32ce64d5df76bf98f53f68ec199df219b53 100644 (file)
--- a/libavcodec/mpeg12.c
+++ b/libavcodec/mpeg12.c
@@ -1160,7 +1160,7 @@ typedef struct Mpeg1Context {
     int slice_count;
     int swap_uv;//indicate VCR2
     int save_aspect_info;
-    int save_width, save_height;
+    int save_width, save_height, save_progressive_seq;
     AVRational frame_rate_ext;       ///< MPEG-2 specific framerate modificator
 
 } Mpeg1Context;
@@ -1238,6 +1238,7 @@ static int mpeg_decode_postinit(AVCodecContext *avctx){
         s1->save_width != s->width ||
         s1->save_height != s->height ||
         s1->save_aspect_info != s->aspect_ratio_info||
+        s1->save_progressive_seq != s->progressive_sequence ||
         0)
     {
 
@@ -1256,6 +1257,7 @@ static int mpeg_decode_postinit(AVCodecContext *avctx){
         s1->save_aspect_info = s->aspect_ratio_info;
         s1->save_width = s->width;
         s1->save_height = s->height;
+        s1->save_progressive_seq = s->progressive_sequence;
 
         /* low_delay may be forced, in this case we will have B-frames
          * that behave like P-frames. */

diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c
index bf1831f1f33ac8ba85fa19e103179681a6a71648..e1bec68f12412b30bd4f000653fa809f4cd28ee9 100644 (file)
--- a/libavcodec/mpegvideo.c
+++ b/libavcodec/mpegvideo.c
@@ -444,6 +444,9 @@ av_cold int MPV_common_init(MpegEncContext *s)
 {
     int y_size, c_size, yc_size, i, mb_array_size, mv_table_size, x, y, threads;
 
+    if(s->codec_id == CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
+        s->mb_height = (s->height + 31) / 32 * 2;
+    else
     s->mb_height = (s->height + 15) / 16;
 
     if(s->avctx->pix_fmt == PIX_FMT_NONE){