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vc1dec: Fix mixed field/frame intensity compensation

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Signed-off-by: Martin Storsjö <martin@martin.st>
pull/23/head
Michael Niedermayer 12 years ago committed by Martin Storsjö
parent 17410faa22
commit d8b9dbe776
1 changed files with 32 additions and 26 deletions
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  1. 58
      libavcodec/vc1dec.c

58
libavcodec/vc1dec.c
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@ -348,7 +348,7 @@ static void vc1_mc_1mv(VC1Context *v, int dir)
int dxy, mx, my, uvmx, uvmy, src_x, src_y, uvsrc_x, uvsrc_y;
int v_edge_pos = s->v_edge_pos >> v->field_mode;
int i;
const uint8_t *luty, *lutuv;
uint8_t (*luty)[256], (*lutuv)[256];
int use_ic;
if ((!v->field_mode ||
@ -388,23 +388,23 @@ static void vc1_mc_1mv(VC1Context *v, int dir)
srcY = s->current_picture.f.data[0];
srcU = s->current_picture.f.data[1];
srcV = s->current_picture.f.data[2];
luty = v->curr_luty [v->ref_field_type[dir]];
lutuv = v->curr_lutuv[v->ref_field_type[dir]];
luty = v->curr_luty;
lutuv = v->curr_lutuv;
use_ic = v->curr_use_ic;
} else {
srcY = s->last_picture.f.data[0];
srcU = s->last_picture.f.data[1];
srcV = s->last_picture.f.data[2];
luty = v->last_luty [v->ref_field_type[dir]];
lutuv = v->last_lutuv[v->ref_field_type[dir]];
luty = v->last_luty;
lutuv = v->last_lutuv;
use_ic = v->last_use_ic;
}
} else {
srcY = s->next_picture.f.data[0];
srcU = s->next_picture.f.data[1];
srcV = s->next_picture.f.data[2];
luty = v->next_luty [v->ref_field_type[dir]];
lutuv = v->next_lutuv[v->ref_field_type[dir]];
luty = v->next_luty;
lutuv = v->next_lutuv;
use_ic = v->next_use_ic;
}
@ -488,16 +488,18 @@ static void vc1_mc_1mv(VC1Context *v, int dir)
src = srcY;
for (j = 0; j < 17 + s->mspel * 2; j++) {
int f = v->field_mode ? v->ref_field_type[dir] : ((j + src_y - s->mspel) & 1) ;
for (i = 0; i < 17 + s->mspel * 2; i++)
src[i] = luty[src[i]];
src[i] = luty[f][src[i]];
src += s->linesize;
}
src = srcU;
src2 = srcV;
for (j = 0; j < 9; j++) {
int f = v->field_mode ? v->ref_field_type[dir] : ((j + uvsrc_y) & 1);
for (i = 0; i < 9; i++) {
src[i] = lutuv[src[i]];
src2[i] = lutuv[src2[i]];
src[i] = lutuv[f][src[i]];
src2[i] = lutuv[f][src2[i]];
}
src += s->uvlinesize;
src2 += s->uvlinesize;
@ -555,7 +557,7 @@ static void vc1_mc_4mv_luma(VC1Context *v, int n, int dir, int avg)
int off;
int fieldmv = (v->fcm == ILACE_FRAME) ? v->blk_mv_type[s->block_index[n]] : 0;
int v_edge_pos = s->v_edge_pos >> v->field_mode;
const uint8_t *luty;
uint8_t (*luty)[256];
int use_ic;
if ((!v->field_mode ||
@ -569,16 +571,16 @@ static void vc1_mc_4mv_luma(VC1Context *v, int n, int dir, int avg)
if (!dir) {
if (v->field_mode && (v->cur_field_type != v->ref_field_type[dir]) && v->second_field) {
srcY = s->current_picture.f.data[0];
luty = v->curr_luty[v->ref_field_type[dir]];
luty = v->curr_luty;
use_ic = v->curr_use_ic;
} else {
srcY = s->last_picture.f.data[0];
luty = v->last_luty[v->ref_field_type[dir]];
luty = v->last_luty;
use_ic = v->last_use_ic;
}
} else {
srcY = s->next_picture.f.data[0];
luty = v->next_luty[v->ref_field_type[dir]];
luty = v->next_luty;
use_ic = v->next_use_ic;
}
@ -706,8 +708,9 @@ static void vc1_mc_4mv_luma(VC1Context *v, int n, int dir, int avg)
src = srcY;
for (j = 0; j < 9 + s->mspel * 2; j++) {
int f = v->field_mode ? v->ref_field_type[dir] : (((j<<fieldmv)+src_y - (s->mspel << fieldmv)) & 1);
for (i = 0; i < 9 + s->mspel * 2; i++)
src[i] = luty[src[i]];
src[i] = luty[f][src[i]];
src += s->linesize << fieldmv;
}
}
@ -795,7 +798,7 @@ static void vc1_mc_4mv_chroma(VC1Context *v, int dir)
int valid_count;
int chroma_ref_type = v->cur_field_type;
int v_edge_pos = s->v_edge_pos >> v->field_mode;
const uint8_t *lutuv;
uint8_t (*lutuv)[256];
int use_ic;
if (!v->field_mode && !v->s.last_picture.f.data[0])
@ -862,18 +865,18 @@ static void vc1_mc_4mv_chroma(VC1Context *v, int dir)
if (v->field_mode && (v->cur_field_type != chroma_ref_type) && v->second_field) {
srcU = s->current_picture.f.data[1];
srcV = s->current_picture.f.data[2];
lutuv = v->curr_lutuv[chroma_ref_type];
lutuv = v->curr_lutuv;
use_ic = v->curr_use_ic;
} else {
srcU = s->last_picture.f.data[1];
srcV = s->last_picture.f.data[2];
lutuv = v->last_lutuv[chroma_ref_type];
lutuv = v->last_lutuv;
use_ic = v->last_use_ic;
}
} else {
srcU = s->next_picture.f.data[1];
srcV = s->next_picture.f.data[2];
lutuv = v->next_lutuv[chroma_ref_type];
lutuv = v->next_lutuv;
use_ic = v->next_use_ic;
}
@ -924,9 +927,10 @@ static void vc1_mc_4mv_chroma(VC1Context *v, int dir)
src = srcU;
src2 = srcV;
for (j = 0; j < 9; j++) {
int f = v->field_mode ? chroma_ref_type : ((j + uvsrc_y) & 1);
for (i = 0; i < 9; i++) {
src[i] = lutuv[src[i]];
src2[i] = lutuv[src2[i]];
src[i] = lutuv[f][src[i]];
src2[i] = lutuv[f][src2[i]];
}
src += s->uvlinesize;
src2 += s->uvlinesize;
@ -1972,23 +1976,25 @@ static void vc1_interp_mc(VC1Context *v)
}
if (use_ic) {
const uint8_t *luty = v->next_luty [v->ref_field_type[1]];
const uint8_t *lutuv= v->next_lutuv[v->ref_field_type[1]];
uint8_t (*luty )[256] = v->next_luty;
uint8_t (*lutuv)[256] = v->next_lutuv;
int i, j;
uint8_t *src, *src2;
src = srcY;
for (j = 0; j < 17 + s->mspel * 2; j++) {
int f = v->field_mode ? v->ref_field_type[1] : ((j+src_y - s->mspel) & 1);
for (i = 0; i < 17 + s->mspel * 2; i++)
src[i] = luty[src[i]];
src[i] = luty[f][src[i]];
src += s->linesize;
}
src = srcU;
src2 = srcV;
for (j = 0; j < 9; j++) {
int f = v->field_mode ? v->ref_field_type[1] : ((j+uvsrc_y) & 1);
for (i = 0; i < 9; i++) {
src[i] = lutuv[src[i]];
src2[i] = lutuv[src2[i]];
src[i] = lutuv[f][src[i]];
src2[i] = lutuv[f][src2[i]];
}
src += s->uvlinesize;
src2 += s->uvlinesize;

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