summaryrefslogtreecommitdiff
path: root/libavcodec/h264idct_template.c
diff options
context:
space:
mode:
authorMans Rullgard <mans@mansr.com>2011-07-20 09:46:18 +0100
committerMans Rullgard <mans@mansr.com>2011-07-20 16:13:04 +0100
commit7b4ee3a21d7c7419b485bf7af3b2795b9c3e89ea (patch)
tree86fd5f73d767442ab2b08816d50dcc02c41f1c87 /libavcodec/h264idct_template.c
parent89cc8a316d252d37a14906da9c170afbc7488326 (diff)
downloadffmpeg-7b4ee3a21d7c7419b485bf7af3b2795b9c3e89ea.tar.gz
Remove h264_lowres_idct_put/add functions
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>
Diffstat (limited to 'libavcodec/h264idct_template.c')
-rw-r--r--libavcodec/h264idct_template.c57
1 files changed, 23 insertions, 34 deletions
diff --git a/libavcodec/h264idct_template.c b/libavcodec/h264idct_template.c
index 55c1d3a4d8..ba5571576d 100644
--- a/libavcodec/h264idct_template.c
+++ b/libavcodec/h264idct_template.c
@@ -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);
-
- 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;
+ 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 + 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);
-
- 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));
+ 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(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);
}
}