Revision 757ec2d7
| libavcodec/mpegvideo.c | ||
|---|---|---|
| 1617 | 1617 |
uint8_t *ptr_y, *ptr_cb, *ptr_cr; |
| 1618 | 1618 |
int mx, my, src_x, src_y, uvsrc_x, uvsrc_y, uvlinesize, linesize, sx, sy, uvsx, uvsy; |
| 1619 | 1619 |
const int lowres= s->avctx->lowres; |
| 1620 |
const int op_index= FFMIN(lowres, 2); |
|
| 1620 |
const int op_index= FFMIN(lowres-1+s->chroma_x_shift, 2);
|
|
| 1621 | 1621 |
const int block_s= 8>>lowres; |
| 1622 | 1622 |
const int s_mask= (2<<lowres)-1; |
| 1623 | 1623 |
const int h_edge_pos = s->h_edge_pos >> lowres; |
| ... | ... | |
| 1652 | 1652 |
uvsrc_x = s->mb_x*block_s + (mx >> lowres); |
| 1653 | 1653 |
uvsrc_y = mb_y*block_s + (my >> lowres); |
| 1654 | 1654 |
} else {
|
| 1655 |
mx = motion_x / 2; |
|
| 1656 |
my = motion_y / 2; |
|
| 1657 |
uvsx = mx & s_mask; |
|
| 1658 |
uvsy = my & s_mask; |
|
| 1659 |
uvsrc_x = s->mb_x*block_s + (mx >> (lowres+1)); |
|
| 1660 |
uvsrc_y =( mb_y*block_s>>field_based) + (my >> (lowres+1)); |
|
| 1655 |
if(s->chroma_y_shift){
|
|
| 1656 |
mx = motion_x / 2; |
|
| 1657 |
my = motion_y / 2; |
|
| 1658 |
uvsx = mx & s_mask; |
|
| 1659 |
uvsy = my & s_mask; |
|
| 1660 |
uvsrc_x = s->mb_x*block_s + (mx >> (lowres+1)); |
|
| 1661 |
uvsrc_y =( mb_y*block_s>>field_based) + (my >> (lowres+1)); |
|
| 1662 |
} else {
|
|
| 1663 |
if(s->chroma_x_shift){
|
|
| 1664 |
//Chroma422 |
|
| 1665 |
mx = motion_x / 2; |
|
| 1666 |
uvsx = mx & s_mask; |
|
| 1667 |
uvsy = motion_y & s_mask; |
|
| 1668 |
uvsrc_y = src_y; |
|
| 1669 |
uvsrc_x = s->mb_x*2*block_s + (mx >> (lowres+1)); |
|
| 1670 |
} else {
|
|
| 1671 |
//Chroma444 |
|
| 1672 |
uvsx = motion_x & s_mask; |
|
| 1673 |
uvsy = motion_y & s_mask; |
|
| 1674 |
uvsrc_x = src_x; |
|
| 1675 |
uvsrc_y = src_y; |
|
| 1676 |
} |
|
| 1677 |
} |
|
| 1661 | 1678 |
} |
| 1662 | 1679 |
|
| 1663 | 1680 |
ptr_y = ref_picture[0] + src_y * linesize + src_x; |
| ... | ... | |
| 2163 | 2180 |
}else{
|
| 2164 | 2181 |
//chroma422 |
| 2165 | 2182 |
dct_linesize = uvlinesize << s->interlaced_dct; |
| 2166 |
dct_offset =(s->interlaced_dct)? uvlinesize : uvlinesize*8;
|
|
| 2183 |
dct_offset =(s->interlaced_dct)? uvlinesize : uvlinesize*block_size;
|
|
| 2167 | 2184 |
|
| 2168 | 2185 |
add_dct(s, block[4], 4, dest_cb, dct_linesize); |
| 2169 | 2186 |
add_dct(s, block[5], 5, dest_cr, dct_linesize); |
| 2170 | 2187 |
add_dct(s, block[6], 6, dest_cb+dct_offset, dct_linesize); |
| 2171 | 2188 |
add_dct(s, block[7], 7, dest_cr+dct_offset, dct_linesize); |
| 2172 | 2189 |
if(!s->chroma_x_shift){//Chroma444
|
| 2173 |
add_dct(s, block[8], 8, dest_cb+8, dct_linesize);
|
|
| 2174 |
add_dct(s, block[9], 9, dest_cr+8, dct_linesize);
|
|
| 2175 |
add_dct(s, block[10], 10, dest_cb+8+dct_offset, dct_linesize);
|
|
| 2176 |
add_dct(s, block[11], 11, dest_cr+8+dct_offset, dct_linesize);
|
|
| 2190 |
add_dct(s, block[8], 8, dest_cb+block_size, dct_linesize);
|
|
| 2191 |
add_dct(s, block[9], 9, dest_cr+block_size, dct_linesize);
|
|
| 2192 |
add_dct(s, block[10], 10, dest_cb+block_size+dct_offset, dct_linesize);
|
|
| 2193 |
add_dct(s, block[11], 11, dest_cr+block_size+dct_offset, dct_linesize);
|
|
| 2177 | 2194 |
} |
| 2178 | 2195 |
} |
| 2179 | 2196 |
}//fi gray |
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