[SCM] libav/experimental: use edge emu for encoding of width or height %16!=0 files
siretart at users.alioth.debian.org
siretart at users.alioth.debian.org
Sun Jun 30 15:32:48 UTC 2013
The following commit has been merged in the experimental branch:
commit 79c0c7858d160d7b75a62190108aefff8fbf616d
Author: Michael Niedermayer <michaelni at gmx.at>
Date: Wed Jul 17 23:32:31 2002 +0000
use edge emu for encoding of width or height %16!=0 files
Originally committed as revision 776 to svn://svn.ffmpeg.org/ffmpeg/trunk
diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c
index 73c8327..e41a63f 100644
--- a/libavcodec/mpegvideo.c
+++ b/libavcodec/mpegvideo.c
@@ -1640,9 +1640,15 @@ static void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
if (s->mb_intra) {
UINT8 *ptr;
int wrap;
+ int emu=0;
wrap = s->linesize;
ptr = s->new_picture[0] + (mb_y * 16 * wrap) + mb_x * 16;
+ if(mb_x*16+16 > s->width || mb_y*16+16 > s->height){
+ emulated_edge_mc(s, ptr, wrap, 16, 16, mb_x*16, mb_y*16, s->width, s->height);
+ ptr= s->edge_emu_buffer;
+ emu=1;
+ }
get_pixels(s->block[0], ptr , wrap);
get_pixels(s->block[1], ptr + 8, wrap);
get_pixels(s->block[2], ptr + 8 * wrap , wrap);
@@ -1654,9 +1660,17 @@ static void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
}else{
wrap >>=1;
ptr = s->new_picture[1] + (mb_y * 8 * wrap) + mb_x * 8;
+ if(emu){
+ emulated_edge_mc(s, ptr, wrap, 8, 8, mb_x*8, mb_y*8, s->width>>1, s->height>>1);
+ ptr= s->edge_emu_buffer;
+ }
get_pixels(s->block[4], ptr, wrap);
ptr = s->new_picture[2] + (mb_y * 8 * wrap) + mb_x * 8;
+ if(emu){
+ emulated_edge_mc(s, ptr, wrap, 8, 8, mb_x*8, mb_y*8, s->width>>1, s->height>>1);
+ ptr= s->edge_emu_buffer;
+ }
get_pixels(s->block[5], ptr, wrap);
}
}else{
@@ -1665,6 +1679,7 @@ static void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
UINT8 *dest_y, *dest_cb, *dest_cr;
UINT8 *ptr_y, *ptr_cb, *ptr_cr;
int wrap_y, wrap_c;
+ int emu=0;
dest_y = s->current_picture[0] + (mb_y * 16 * s->linesize ) + mb_x * 16;
dest_cb = s->current_picture[1] + (mb_y * 8 * (s->uvlinesize)) + mb_x * 8;
@@ -1694,6 +1709,11 @@ static void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture, op_pix, op_qpix);
}
+ if(mb_x*16+16 > s->width || mb_y*16+16 > s->height){
+ emulated_edge_mc(s, ptr_y, wrap_y, 16, 16, mb_x*16, mb_y*16, s->width, s->height);
+ ptr_y= s->edge_emu_buffer;
+ emu=1;
+ }
diff_pixels(s->block[0], ptr_y , dest_y , wrap_y);
diff_pixels(s->block[1], ptr_y + 8, dest_y + 8, wrap_y);
diff_pixels(s->block[2], ptr_y + 8 * wrap_y , dest_y + 8 * wrap_y , wrap_y);
@@ -1703,7 +1723,15 @@ static void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
skip_dct[4]= 1;
skip_dct[5]= 1;
}else{
+ if(emu){
+ emulated_edge_mc(s, ptr_cb, wrap_c, 8, 8, mb_x*8, mb_y*8, s->width>>1, s->height>>1);
+ ptr_cb= s->edge_emu_buffer;
+ }
diff_pixels(s->block[4], ptr_cb, dest_cb, wrap_c);
+ if(emu){
+ emulated_edge_mc(s, ptr_cr, wrap_c, 8, 8, mb_x*8, mb_y*8, s->width>>1, s->height>>1);
+ ptr_cr= s->edge_emu_buffer;
+ }
diff_pixels(s->block[5], ptr_cr, dest_cr, wrap_c);
}
--
Libav/FFmpeg packaging
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