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h261: Remove H.261 loop filter from dsputil

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There is no arch-optimized version of the H.261 loop filter and there
likely will never be, so the dsputil overhead does not give any benefit.
This commit is contained in:
Diego Biurrun 2013-04-03 20:09:58 +02:00
parent ae35d91d44
commit ed16c2dbf4
3 changed files with 34 additions and 37 deletions
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29
libavcodec/dsputil.c
View File

@ -1479,33 +1479,6 @@ static void h263_h_loop_filter_c(uint8_t *src, int stride, int qscale){
}
}
static void h261_loop_filter_c(uint8_t *src, int stride){
int x,y,xy,yz;
int temp[64];
for(x=0; x<8; x++){
temp[x ] = 4*src[x ];
temp[x + 7*8] = 4*src[x + 7*stride];
}
for(y=1; y<7; y++){
for(x=0; x<8; x++){
xy = y * stride + x;
yz = y * 8 + x;
temp[yz] = src[xy - stride] + 2*src[xy] + src[xy + stride];
}
}
for(y=0; y<8; y++){
src[ y*stride] = (temp[ y*8] + 2)>>2;
src[7+y*stride] = (temp[7+y*8] + 2)>>2;
for(x=1; x<7; x++){
xy = y * stride + x;
yz = y * 8 + x;
src[xy] = (temp[yz-1] + 2*temp[yz] + temp[yz+1] + 8)>>4;
}
}
}
static inline int pix_abs16_c(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)
{
int s, i;
@ -2735,8 +2708,6 @@ av_cold void ff_dsputil_init(DSPContext* c, AVCodecContext *avctx)
c->h263_v_loop_filter= h263_v_loop_filter_c;
}
c->h261_loop_filter= h261_loop_filter_c;
c->try_8x8basis= try_8x8basis_c;
c->add_8x8basis= add_8x8basis_c;

2
libavcodec/dsputil.h
View File

@ -277,8 +277,6 @@ typedef struct DSPContext {
void (*h263_v_loop_filter)(uint8_t *src, int stride, int qscale);
void (*h263_h_loop_filter)(uint8_t *src, int stride, int qscale);
void (*h261_loop_filter)(uint8_t *src, int stride);
/* assume len is a multiple of 8, and arrays are 16-byte aligned */
void (*vector_clipf)(float *dst /* align 16 */, const float *src /* align 16 */, float min, float max, int len /* align 16 */);

40
libavcodec/h261.c
View File

@ -32,6 +32,34 @@
uint8_t ff_h261_rl_table_store[2][2*MAX_RUN + MAX_LEVEL + 3];
static void h261_loop_filter(uint8_t *src, int stride)
{
int x,y,xy,yz;
int temp[64];
for(x=0; x<8; x++){
temp[x ] = 4*src[x ];
temp[x + 7*8] = 4*src[x + 7*stride];
}
for(y=1; y<7; y++){
for(x=0; x<8; x++){
xy = y * stride + x;
yz = y * 8 + x;
temp[yz] = src[xy - stride] + 2*src[xy] + src[xy + stride];
}
}
for(y=0; y<8; y++){
src[ y*stride] = (temp[ y*8] + 2)>>2;
src[7+y*stride] = (temp[7+y*8] + 2)>>2;
for(x=1; x<7; x++){
xy = y * stride + x;
yz = y * 8 + x;
src[xy] = (temp[yz-1] + 2*temp[yz] + temp[yz+1] + 8)>>4;
}
}
}
void ff_h261_loop_filter(MpegEncContext *s){
H261Context * h= (H261Context*)s;
const int linesize = s->linesize;
@ -43,10 +71,10 @@ void ff_h261_loop_filter(MpegEncContext *s){
if(!(IS_FIL (h->mtype)))
return;
s->dsp.h261_loop_filter(dest_y , linesize);
s->dsp.h261_loop_filter(dest_y + 8, linesize);
s->dsp.h261_loop_filter(dest_y + 8 * linesize , linesize);
s->dsp.h261_loop_filter(dest_y + 8 * linesize + 8, linesize);
s->dsp.h261_loop_filter(dest_cb, uvlinesize);
s->dsp.h261_loop_filter(dest_cr, uvlinesize);
h261_loop_filter(dest_y, linesize);
h261_loop_filter(dest_y + 8, linesize);
h261_loop_filter(dest_y + 8 * linesize, linesize);
h261_loop_filter(dest_y + 8 * linesize + 8, linesize);
h261_loop_filter(dest_cb, uvlinesize);
h261_loop_filter(dest_cr, uvlinesize);
}