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use edge emu for encoding of width or height %16!=0 files

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Originally committed as revision 776 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2002-07-17 23:32:31 +00:00
parent 9022797ba2
commit 79c0c7858d
1 changed files with 28 additions and 0 deletions
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28
libavcodec/mpegvideo.c
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@ -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);
}