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Code Issues Releases Activity

Remove h264_lowres_idct_put/add functions

Browse Source 
Use of these has been broken ever since the h264 idct was changed
to always use transposed inputs.  Furthermore, they were only
ever used if some *other* non-default idct was requested.

Signed-off-by: Mans Rullgard <mans@mansr.com>
This commit is contained in:
Mans Rullgard 2011-07-20 09:46:18 +01:00
parent 89cc8a316d
commit 7b4ee3a21d
3 changed files with 23 additions and 57 deletions
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21
libavcodec/dsputil.c
View File

@ -2863,29 +2863,8 @@ av_cold void dsputil_init(DSPContext* c, AVCodecContext *avctx)
#endif //CONFIG_ENCODERS
if(avctx->lowres==1){
if(avctx->idct_algo==FF_IDCT_INT || avctx->idct_algo==FF_IDCT_AUTO || !CONFIG_H264_DECODER){
c->idct_put= ff_jref_idct4_put;
c->idct_add= ff_jref_idct4_add;
}else{
if (avctx->codec_id != CODEC_ID_H264) {
c->idct_put= ff_h264_lowres_idct_put_8_c;
c->idct_add= ff_h264_lowres_idct_add_8_c;
} else {
switch (avctx->bits_per_raw_sample) {
case 9:
c->idct_put= ff_h264_lowres_idct_put_9_c;
c->idct_add= ff_h264_lowres_idct_add_9_c;
break;
case 10:
c->idct_put= ff_h264_lowres_idct_put_10_c;
c->idct_add= ff_h264_lowres_idct_add_10_c;
break;
default:
c->idct_put= ff_h264_lowres_idct_put_8_c;
c->idct_add= ff_h264_lowres_idct_add_8_c;
}
}
}
c->idct = j_rev_dct4;
c->idct_permutation_type= FF_NO_IDCT_PERM;
}else if(avctx->lowres==2){

2
libavcodec/dsputil.h
View File

@ -58,8 +58,6 @@ void ff_h264_idct8_add_ ## depth ## _c(uint8_t *dst, DCTELEM *block, int stride)
void ff_h264_idct_add_ ## depth ## _c(uint8_t *dst, DCTELEM *block, int stride);\
void ff_h264_idct8_dc_add_ ## depth ## _c(uint8_t *dst, DCTELEM *block, int stride);\
void ff_h264_idct_dc_add_ ## depth ## _c(uint8_t *dst, DCTELEM *block, int stride);\
void ff_h264_lowres_idct_add_ ## depth ## _c(uint8_t *dst, int stride, DCTELEM *block);\
void ff_h264_lowres_idct_put_ ## depth ## _c(uint8_t *dst, int stride, DCTELEM *block);\
void ff_h264_idct_add16_ ## depth ## _c(uint8_t *dst, const int *blockoffset, DCTELEM *block, int stride, const uint8_t nnzc[6*8]);\
void ff_h264_idct_add16intra_ ## depth ## _c(uint8_t *dst, const int *blockoffset, DCTELEM *block, int stride, const uint8_t nnzc[6*8]);\
void ff_h264_idct8_add4_ ## depth ## _c(uint8_t *dst, const int *blockoffset, DCTELEM *block, int stride, const uint8_t nnzc[6*8]);\

53
libavcodec/h264idct_template.c
View File

@ -46,52 +46,41 @@ static const uint8_t scan8[16*3]={
};
#endif
static av_always_inline void FUNCC(idct_internal)(uint8_t *_dst, DCTELEM *_block, int stride, int block_stride, int shift, int add){
void FUNCC(ff_h264_idct_add)(uint8_t *_dst, DCTELEM *_block, int stride)
{
int i;
INIT_CLIP
pixel *dst = (pixel*)_dst;
dctcoef *block = (dctcoef*)_block;
stride /= sizeof(pixel);
block[0] += 1<<(shift-1);
block[0] += 1 << 5;
for(i=0; i<4; i++){
const int z0= block[i + block_stride*0] + block[i + block_stride*2];
const int z1= block[i + block_stride*0] - block[i + block_stride*2];
const int z2= (block[i + block_stride*1]>>1) - block[i + block_stride*3];
const int z3= block[i + block_stride*1] + (block[i + block_stride*3]>>1);
const int z0= block[i + 4*0] + block[i + 4*2];
const int z1= block[i + 4*0] - block[i + 4*2];
const int z2= (block[i + 4*1]>>1) - block[i + 4*3];
const int z3= block[i + 4*1] + (block[i + 4*3]>>1);
block[i + block_stride*0]= z0 + z3;
block[i + block_stride*1]= z1 + z2;
block[i + block_stride*2]= z1 - z2;
block[i + block_stride*3]= z0 - z3;
block[i + 4*0]= z0 + z3;
block[i + 4*1]= z1 + z2;
block[i + 4*2]= z1 - z2;
block[i + 4*3]= z0 - z3;
}
for(i=0; i<4; i++){
const int z0= block[0 + block_stride*i] + block[2 + block_stride*i];
const int z1= block[0 + block_stride*i] - block[2 + block_stride*i];
const int z2= (block[1 + block_stride*i]>>1) - block[3 + block_stride*i];
const int z3= block[1 + block_stride*i] + (block[3 + block_stride*i]>>1);
const int z0= block[0 + 4*i] + block[2 + 4*i];
const int z1= block[0 + 4*i] - block[2 + 4*i];
const int z2= (block[1 + 4*i]>>1) - block[3 + 4*i];
const int z3= block[1 + 4*i] + (block[3 + 4*i]>>1);
dst[i + 0*stride]= CLIP(add*dst[i + 0*stride] + ((z0 + z3) >> shift));
dst[i + 1*stride]= CLIP(add*dst[i + 1*stride] + ((z1 + z2) >> shift));
dst[i + 2*stride]= CLIP(add*dst[i + 2*stride] + ((z1 - z2) >> shift));
dst[i + 3*stride]= CLIP(add*dst[i + 3*stride] + ((z0 - z3) >> shift));
dst[i + 0*stride]= CLIP(dst[i + 0*stride] + ((z0 + z3) >> 6));
dst[i + 1*stride]= CLIP(dst[i + 1*stride] + ((z1 + z2) >> 6));
dst[i + 2*stride]= CLIP(dst[i + 2*stride] + ((z1 - z2) >> 6));
dst[i + 3*stride]= CLIP(dst[i + 3*stride] + ((z0 - z3) >> 6));
}
}
void FUNCC(ff_h264_idct_add)(uint8_t *dst, DCTELEM *block, int stride){
FUNCC(idct_internal)(dst, block, stride, 4, 6, 1);
}
void FUNCC(ff_h264_lowres_idct_add)(uint8_t *dst, int stride, DCTELEM *block){
FUNCC(idct_internal)(dst, block, stride, 8, 3, 1);
}
void FUNCC(ff_h264_lowres_idct_put)(uint8_t *dst, int stride, DCTELEM *block){
FUNCC(idct_internal)(dst, block, stride, 8, 3, 0);
}
void FUNCC(ff_h264_idct8_add)(uint8_t *_dst, DCTELEM *_block, int stride){
int i;
INIT_CLIP
@ -200,7 +189,7 @@ void FUNCC(ff_h264_idct_add16)(uint8_t *dst, const int *block_offset, DCTELEM *b
int nnz = nnzc[ scan8[i] ];
if(nnz){
if(nnz==1 && ((dctcoef*)block)[i*16]) FUNCC(ff_h264_idct_dc_add)(dst + block_offset[i], block + i*16*sizeof(pixel), stride);
else FUNCC(idct_internal )(dst + block_offset[i], block + i*16*sizeof(pixel), stride, 4, 6, 1);
else FUNCC(ff_h264_idct_add )(dst + block_offset[i], block + i*16*sizeof(pixel), stride);
}
}
}
@ -208,7 +197,7 @@ void FUNCC(ff_h264_idct_add16)(uint8_t *dst, const int *block_offset, DCTELEM *b
void FUNCC(ff_h264_idct_add16intra)(uint8_t *dst, const int *block_offset, DCTELEM *block, int stride, const uint8_t nnzc[15*8]){
int i;
for(i=0; i<16; i++){
if(nnzc[ scan8[i] ]) FUNCC(idct_internal )(dst + block_offset[i], block + i*16*sizeof(pixel), stride, 4, 6, 1);
if(nnzc[ scan8[i] ]) FUNCC(ff_h264_idct_add )(dst + block_offset[i], block + i*16*sizeof(pixel), stride);
else if(((dctcoef*)block)[i*16]) FUNCC(ff_h264_idct_dc_add)(dst + block_offset[i], block + i*16*sizeof(pixel), stride);
}
}