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Revert "VC1: merge idct8x8, coeff adjustments and put_pixels."

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This reverts commit f8bed30d8b. The reason
for this is that the overlap filter, which runs after IDCT, should run
on unclamped values, and thus IDCT and put_pixels() cannot be merged if
we want to attempt to be bitexact.
This commit is contained in:
Ronald S. Bultje
2011-05-04 07:35:30 -04:00
parent 1a5e4fd8c5
commit 18b6a69ce9
5 changed files with 39 additions and 170 deletions
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58
libavcodec/vc1dec.c
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@@ -2016,7 +2016,8 @@ static int vc1_decode_p_block(VC1Context *v, DCTELEM block[64], int n, int mquan
if(i==1)
v->vc1dsp.vc1_inv_trans_8x8_dc(dst, linesize, block);
else{
v->vc1dsp.vc1_inv_trans_8x8_add(dst, linesize, block);
v->vc1dsp.vc1_inv_trans_8x8(block);
s->dsp.add_pixels_clamped(block, dst, linesize);
}
}
break;
@@ -2258,7 +2259,7 @@ static int vc1_decode_p_mb(VC1Context *v)
{
MpegEncContext *s = &v->s;
GetBitContext *gb = &s->gb;
int i;
int i, j;
int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
int cbp; /* cbp decoding stuff */
int mqdiff, mquant; /* MB quantization */
@@ -2288,8 +2289,6 @@ static int vc1_decode_p_mb(VC1Context *v)
{
if (!skipped)
{
vc1_idct_func idct8x8_fn;
GET_MVDATA(dmv_x, dmv_y);
if (s->mb_intra) {
@@ -2324,7 +2323,6 @@ static int vc1_decode_p_mb(VC1Context *v)
VC1_TTMB_VLC_BITS, 2);
if(!s->mb_intra) vc1_mc_1mv(v, 0);
dst_idx = 0;
idct8x8_fn = v->vc1dsp.vc1_inv_trans_8x8_put_signed[!!v->rangeredfrm];
for (i=0; i<6; i++)
{
s->dc_val[0][s->block_index[i]] = 0;
@@ -2342,9 +2340,9 @@ static int vc1_decode_p_mb(VC1Context *v)
vc1_decode_intra_block(v, s->block[i], i, val, mquant, (i&4)?v->codingset2:v->codingset);
if((i>3) && (s->flags & CODEC_FLAG_GRAY)) continue;
idct8x8_fn(s->dest[dst_idx] + off,
i & 4 ? s->uvlinesize : s->linesize,
s->block[i]);
v->vc1dsp.vc1_inv_trans_8x8(s->block[i]);
if(v->rangeredfrm) for(j = 0; j < 64; j++) s->block[i][j] <<= 1;
s->dsp.put_signed_pixels_clamped(s->block[i], s->dest[dst_idx] + off, i & 4 ? s->uvlinesize : s->linesize);
if(v->pq >= 9 && v->overlap) {
if(v->c_avail)
v->vc1dsp.vc1_h_overlap(s->dest[dst_idx] + off, i & 4 ? s->uvlinesize : s->linesize);
@@ -2380,7 +2378,6 @@ static int vc1_decode_p_mb(VC1Context *v)
{
int intra_count = 0, coded_inter = 0;
int is_intra[6], is_coded[6];
vc1_idct_func idct8x8_fn;
/* Get CBPCY */
cbp = get_vlc2(&v->s.gb, v->cbpcy_vlc->table, VC1_CBPCY_P_VLC_BITS, 2);
for (i=0; i<6; i++)
@@ -2431,7 +2428,6 @@ static int vc1_decode_p_mb(VC1Context *v)
}
if (!v->ttmbf && coded_inter)
ttmb = get_vlc2(gb, ff_vc1_ttmb_vlc[v->tt_index].table, VC1_TTMB_VLC_BITS, 2);
idct8x8_fn = v->vc1dsp.vc1_inv_trans_8x8_put_signed[!!v->rangeredfrm];
for (i=0; i<6; i++)
{
dst_idx += i >> 2;
@@ -2447,9 +2443,9 @@ static int vc1_decode_p_mb(VC1Context *v)
vc1_decode_intra_block(v, s->block[i], i, is_coded[i], mquant, (i&4)?v->codingset2:v->codingset);
if((i>3) && (s->flags & CODEC_FLAG_GRAY)) continue;
idct8x8_fn(s->dest[dst_idx] + off,
(i&4)?s->uvlinesize:s->linesize,
s->block[i]);
v->vc1dsp.vc1_inv_trans_8x8(s->block[i]);
if(v->rangeredfrm) for(j = 0; j < 64; j++) s->block[i][j] <<= 1;
s->dsp.put_signed_pixels_clamped(s->block[i], s->dest[dst_idx] + off, (i&4)?s->uvlinesize:s->linesize);
if(v->pq >= 9 && v->overlap) {
if(v->c_avail)
v->vc1dsp.vc1_h_overlap(s->dest[dst_idx] + off, i & 4 ? s->uvlinesize : s->linesize);
@@ -2497,7 +2493,7 @@ static void vc1_decode_b_mb(VC1Context *v)
{
MpegEncContext *s = &v->s;
GetBitContext *gb = &s->gb;
int i;
int i, j;
int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
int cbp = 0; /* cbp decoding stuff */
int mqdiff, mquant; /* MB quantization */
@@ -2510,7 +2506,6 @@ static void vc1_decode_b_mb(VC1Context *v)
int skipped, direct;
int dmv_x[2], dmv_y[2];
int bmvtype = BMV_TYPE_BACKWARD;
vc1_idct_func idct8x8_fn;
mquant = v->pq; /* Loosy initialization */
s->mb_intra = 0;
@@ -2608,7 +2603,6 @@ static void vc1_decode_b_mb(VC1Context *v)
}
}
dst_idx = 0;
idct8x8_fn = v->vc1dsp.vc1_inv_trans_8x8_put_signed[!!v->rangeredfrm];
for (i=0; i<6; i++)
{
s->dc_val[0][s->block_index[i]] = 0;
@@ -2626,9 +2620,9 @@ static void vc1_decode_b_mb(VC1Context *v)
vc1_decode_intra_block(v, s->block[i], i, val, mquant, (i&4)?v->codingset2:v->codingset);
if((i>3) && (s->flags & CODEC_FLAG_GRAY)) continue;
idct8x8_fn(s->dest[dst_idx] + off,
i & 4 ? s->uvlinesize : s->linesize,
s->block[i]);
v->vc1dsp.vc1_inv_trans_8x8(s->block[i]);
if(v->rangeredfrm) for(j = 0; j < 64; j++) s->block[i][j] <<= 1;
s->dsp.put_signed_pixels_clamped(s->block[i], s->dest[dst_idx] + off, i & 4 ? s->uvlinesize : s->linesize);
} else if(val) {
vc1_decode_p_block(v, s->block[i], i, mquant, ttmb, first_block, s->dest[dst_idx] + off, (i&4)?s->uvlinesize:s->linesize, (i&4) && (s->flags & CODEC_FLAG_GRAY), NULL);
if(!v->ttmbf && ttmb < 8) ttmb = -1;
@@ -2641,12 +2635,11 @@ static void vc1_decode_b_mb(VC1Context *v)
*/
static void vc1_decode_i_blocks(VC1Context *v)
{
int k;
int k, j;
MpegEncContext *s = &v->s;
int cbp, val;
uint8_t *coded_val;
int mb_pos;
vc1_idct_func idct8x8_fn;
/* select codingmode used for VLC tables selection */
switch(v->y_ac_table_index){
@@ -2681,10 +2674,6 @@ static void vc1_decode_i_blocks(VC1Context *v)
s->mb_x = s->mb_y = 0;
s->mb_intra = 1;
s->first_slice_line = 1;
if(v->pq >= 9 && v->overlap) {
idct8x8_fn = v->vc1dsp.vc1_inv_trans_8x8_put_signed[!!v->rangeredfrm];
} else
idct8x8_fn = v->vc1dsp.vc1_inv_trans_8x8_put[!!v->rangeredfrm];
for(s->mb_y = 0; s->mb_y < s->mb_height; s->mb_y++) {
s->mb_x = 0;
ff_init_block_index(s);
@@ -2721,9 +2710,14 @@ static void vc1_decode_i_blocks(VC1Context *v)
vc1_decode_i_block(v, s->block[k], k, val, (k<4)? v->codingset : v->codingset2);
if (k > 3 && (s->flags & CODEC_FLAG_GRAY)) continue;
idct8x8_fn(dst[k],
k & 4 ? s->uvlinesize : s->linesize,
s->block[k]);
v->vc1dsp.vc1_inv_trans_8x8(s->block[k]);
if(v->pq >= 9 && v->overlap) {
if (v->rangeredfrm) for(j = 0; j < 64; j++) s->block[k][j] <<= 1;
s->dsp.put_signed_pixels_clamped(s->block[k], dst[k], k & 4 ? s->uvlinesize : s->linesize);
} else {
if (v->rangeredfrm) for(j = 0; j < 64; j++) s->block[k][j] = (s->block[k][j] - 64) << 1;
s->dsp.put_pixels_clamped(s->block[k], dst[k], k & 4 ? s->uvlinesize : s->linesize);
}
}
if(v->pq >= 9 && v->overlap) {
@@ -2781,7 +2775,6 @@ static void vc1_decode_i_blocks_adv(VC1Context *v, int mby_start, int mby_end)
int mqdiff;
int overlap;
GetBitContext *gb = &s->gb;
vc1_idct_func idct8x8_fn;
/* select codingmode used for VLC tables selection */
switch(v->y_ac_table_index){
@@ -2819,7 +2812,6 @@ static void vc1_decode_i_blocks_adv(VC1Context *v, int mby_start, int mby_end)
memset(&s->coded_block[s->block_index[0]-s->b8_stride], 0,
s->b8_stride * sizeof(*s->coded_block));
}
idct8x8_fn = v->vc1dsp.vc1_inv_trans_8x8_put_signed[0];
for(; s->mb_y < mby_end; s->mb_y++) {
s->mb_x = 0;
ff_init_block_index(s);
@@ -2876,9 +2868,9 @@ static void vc1_decode_i_blocks_adv(VC1Context *v, int mby_start, int mby_end)
vc1_decode_i_block_adv(v, s->block[k], k, val, (k<4)? v->codingset : v->codingset2, mquant);
if (k > 3 && (s->flags & CODEC_FLAG_GRAY)) continue;
idct8x8_fn(dst[k],
k & 4 ? s->uvlinesize : s->linesize,
s->block[k]);
v->vc1dsp.vc1_inv_trans_8x8(s->block[k]);
s->dsp.put_signed_pixels_clamped(s->block[k], dst[k],
k & 4 ? s->uvlinesize : s->linesize);
}
if(overlap) {