From d55e93e48b35513541ce6ac2a68def02545c358c Mon Sep 17 00:00:00 2001
From: Ivan Kalvachev <ivan@cacad.com>
Date: Thu, 3 Jul 2003 23:29:00 +0000
Subject: [PATCH] Mpeg2 16x8 Patch by ("Ivan Kalvachev" <ivan at cacad dot
com>)
Originally committed as revision 2006 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
libavcodec/mpegvideo.c | 34 ++++++++++++++++++++++++++++++++++
1 file changed, 34 insertions(+)
diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c
index 0d8c571203a..ebdd4858d8d 100644
--- a/libavcodec/mpegvideo.c
+++ b/libavcodec/mpegvideo.c
@@ -2189,6 +2189,40 @@ static inline void MPV_motion(MpegEncContext *s,
0, pix_op,
s->mv[dir][0][0], s->mv[dir][0][1], 16);
}
+ break;
+ case MV_TYPE_16X8:{
+ int offset;
+ uint8_t ** ref2picture;
+
+ if(s->picture_structure == s->field_select[dir][0] + 1 || s->pict_type == B_TYPE || s->first_field){
+ ref2picture= ref_picture;
+ offset= s->field_select[dir][0] ? s->linesize : 0;
+ }else{
+ ref2picture= s->current_picture.data;
+ offset= s->field_select[dir][0] ? s->linesize : -s->linesize;
+ }
+
+ mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
+ ref2picture, offset,
+ 0, pix_op,
+ s->mv[dir][0][0], s->mv[dir][0][1], 8);
+
+
+ if(s->picture_structure == s->field_select[dir][1] + 1 || s->pict_type == B_TYPE || s->first_field){
+ ref2picture= ref_picture;
+ offset= s->field_select[dir][1] ? s->linesize : 0;
+ }else{
+ ref2picture= s->current_picture.data;
+ offset= s->field_select[dir][1] ? s->linesize : -s->linesize;
+ }
+ // I know it is ugly but this is the only way to fool emu_edge without rewrite mpeg_motion
+ mpeg_motion(s, dest_y+16*s->linesize, dest_cb+8*s->uvlinesize, dest_cr+8*s->uvlinesize,
+ 0,
+ ref2picture, offset,
+ 0, pix_op,
+ s->mv[dir][1][0], s->mv[dir][1][1]+16, 8);
+ }
+
break;
case MV_TYPE_DMV:
{
--
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