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Code Issues Releases Activity

Use overlap filter instead of loop filter.

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Originally committed as revision 5685 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Kostya Shishkov 2006-07-09 02:47:09 +00:00
parent d2779ecd8b
commit 65c7bb9ec4
1 changed files with 24 additions and 34 deletions
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58
libavcodec/vc1.c
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@ -825,24 +825,10 @@ static void vc1_inv_trans(DCTELEM block[64], int M, int N)
}
}
/** Apply overlap transform
/** Apply overlap transform to vertical edge
* @todo optimize
* @todo move to DSPContext
*/
static void vc1_overlap_block(MpegEncContext *s, DCTELEM block[64], int n, int do_hor, int do_vert)
{
int i;
if(do_hor) { //TODO
}
if(do_vert) { //TODO
}
for(i = 0; i < 64; i++)
block[i] += 128;
}
static void vc1_v_overlap(uint8_t* src, int stride)
{
int i;
@ -861,6 +847,10 @@ static void vc1_v_overlap(uint8_t* src, int stride)
}
}
/** Apply overlap transform to horizontal edge
* @todo optimize
* @todo move to DSPContext
*/
static void vc1_h_overlap(uint8_t* src, int stride)
{
int i;
@ -2450,9 +2440,9 @@ static int vc1_decode_p_mb(VC1Context *v, DCTELEM block[6][64])
/* TODO: proper loop filtering */
if(v->pq >= 9 && v->overlap) {
if(v->a_avail)
s->dsp.h263_v_loop_filter(s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2), s->y_dc_scale);
vc1_v_overlap(s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2));
if(v->c_avail)
s->dsp.h263_h_loop_filter(s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2), s->y_dc_scale);
vc1_h_overlap(s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2));
}
} else if(val) {
vc1_decode_p_block(v, block[i], i, mquant, ttmb, first_block);
@ -2546,9 +2536,9 @@ static int vc1_decode_p_mb(VC1Context *v, DCTELEM block[6][64])
/* TODO: proper loop filtering */
if(v->pq >= 9 && v->overlap) {
if(v->a_avail)
s->dsp.h263_v_loop_filter(s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2), s->y_dc_scale);
vc1_v_overlap(s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2));
if(v->c_avail)
s->dsp.h263_h_loop_filter(s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2), s->y_dc_scale);
vc1_h_overlap(s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2));
}
} else if(is_coded[i]) {
status = vc1_decode_p_block(v, s->block[i], i, mquant, ttmb, first_block);
@ -2582,7 +2572,7 @@ static int vc1_decode_p_mb(VC1Context *v, DCTELEM block[6][64])
*/
static void vc1_decode_i_blocks(VC1Context *v)
{
int k;
int k, j;
MpegEncContext *s = &v->s;
int cbp, val;
uint8_t *coded_val;
@ -2649,28 +2639,28 @@ static void vc1_decode_i_blocks(VC1Context *v)
vc1_inv_trans(s->block[k], 8, 8);
if(v->pq >= 9 && v->overlap) {
vc1_overlap_block(s, s->block[k], k, (s->mb_y || k>1), (s->mb_x || (k != 0 && k != 2)));
for(j = 0; j < 64; j++) s->block[k][j] += 128;
}
}
vc1_put_block(v, s->block);
if(v->pq >= 9 && v->overlap) { /* XXX: do proper overlapping insted of loop filter */
if(s->mb_y) {
s->dsp.h263_v_loop_filter(s->dest[0], s->linesize, s->y_dc_scale);
s->dsp.h263_v_loop_filter(s->dest[0] + 8, s->linesize, s->y_dc_scale);
s->dsp.h263_v_loop_filter(s->dest[1], s->uvlinesize, s->y_dc_scale);
s->dsp.h263_v_loop_filter(s->dest[2], s->uvlinesize, s->y_dc_scale);
if(!s->first_slice_line) {
vc1_v_overlap(s->dest[0], s->linesize);
vc1_v_overlap(s->dest[0] + 8, s->linesize);
vc1_v_overlap(s->dest[1], s->uvlinesize);
vc1_v_overlap(s->dest[2], s->uvlinesize);
}
s->dsp.h263_v_loop_filter(s->dest[0] + 8 * s->linesize, s->linesize, s->y_dc_scale);
s->dsp.h263_v_loop_filter(s->dest[0] + 8 * s->linesize + 8, s->linesize, s->y_dc_scale);
vc1_v_overlap(s->dest[0] + 8 * s->linesize, s->linesize);
vc1_v_overlap(s->dest[0] + 8 * s->linesize + 8, s->linesize);
if(s->mb_x) {
s->dsp.h263_h_loop_filter(s->dest[0], s->linesize, s->y_dc_scale);
s->dsp.h263_h_loop_filter(s->dest[0] + 8 * s->linesize, s->linesize, s->y_dc_scale);
s->dsp.h263_h_loop_filter(s->dest[1], s->uvlinesize, s->y_dc_scale);
s->dsp.h263_h_loop_filter(s->dest[2], s->uvlinesize, s->y_dc_scale);
vc1_h_overlap(s->dest[0], s->linesize);
vc1_h_overlap(s->dest[0] + 8 * s->linesize, s->linesize);
vc1_h_overlap(s->dest[1], s->uvlinesize);
vc1_h_overlap(s->dest[2], s->uvlinesize);
}
s->dsp.h263_h_loop_filter(s->dest[0] + 8, s->linesize, s->y_dc_scale);
s->dsp.h263_h_loop_filter(s->dest[0] + 8 * s->linesize + 8, s->linesize, s->y_dc_scale);
vc1_h_overlap(s->dest[0] + 8, s->linesize);
vc1_h_overlap(s->dest[0] + 8 * s->linesize + 8, s->linesize);
}
if(get_bits_count(&s->gb) > v->bits) {