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Code Issues Releases Activity

mpegvideo: implement ff_put_h264_chroma_mc1 & ff_avg_h264_chroma_mc2

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These are needed for lowres 3

This may fix Ticket2538

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-05-29 19:41:55 +02:00
parent f8f42f4821
commit c2625c26c5
4 changed files with 33 additions and 3 deletions
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2
libavcodec/h264chroma.c
View File

@ -32,9 +32,11 @@
c->put_h264_chroma_pixels_tab[0] = put_h264_chroma_mc8_ ## depth ## _c; \
c->put_h264_chroma_pixels_tab[1] = put_h264_chroma_mc4_ ## depth ## _c; \
c->put_h264_chroma_pixels_tab[2] = put_h264_chroma_mc2_ ## depth ## _c; \
c->put_h264_chroma_pixels_tab[3] = put_h264_chroma_mc1_ ## depth ## _c; \
c->avg_h264_chroma_pixels_tab[0] = avg_h264_chroma_mc8_ ## depth ## _c; \
c->avg_h264_chroma_pixels_tab[1] = avg_h264_chroma_mc4_ ## depth ## _c; \
c->avg_h264_chroma_pixels_tab[2] = avg_h264_chroma_mc2_ ## depth ## _c; \
c->avg_h264_chroma_pixels_tab[3] = avg_h264_chroma_mc1_ ## depth ## _c; \
av_cold void ff_h264chroma_init(H264ChromaContext *c, int bit_depth)
{

4
libavcodec/h264chroma.h
View File

@ -24,8 +24,8 @@
typedef void (*h264_chroma_mc_func)(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int srcStride, int h, int x, int y);
typedef struct H264ChromaContext {
h264_chroma_mc_func put_h264_chroma_pixels_tab[3];
h264_chroma_mc_func avg_h264_chroma_pixels_tab[3];
h264_chroma_mc_func put_h264_chroma_pixels_tab[4];
h264_chroma_mc_func avg_h264_chroma_pixels_tab[4];
} H264ChromaContext;
void ff_h264chroma_init(H264ChromaContext *c, int bit_depth);

28
libavcodec/h264chroma_template.c
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@ -24,6 +24,34 @@
#include "bit_depth_template.c"
#define H264_CHROMA_MC(OPNAME, OP)\
static void FUNCC(OPNAME ## h264_chroma_mc1)(uint8_t *_dst/*align 8*/, uint8_t *_src/*align 1*/, int stride, int h, int x, int y){\
pixel *dst = (pixel*)_dst;\
pixel *src = (pixel*)_src;\
const int A=(8-x)*(8-y);\
const int B=( x)*(8-y);\
const int C=(8-x)*( y);\
const int D=( x)*( y);\
int i;\
stride >>= sizeof(pixel)-1;\
\
av_assert2(x<8 && y<8 && x>=0 && y>=0);\
\
if(D){\
for(i=0; i<h; i++){\
OP(dst[0], (A*src[0] + B*src[1] + C*src[stride+0] + D*src[stride+1]));\
dst+= stride;\
src+= stride;\
}\
}else{\
const int E= B+C;\
const int step= C ? stride : 1;\
for(i=0; i<h; i++){\
OP(dst[0], (A*src[0] + E*src[step+0]));\
dst+= stride;\
src+= stride;\
}\
}\
}\
static void FUNCC(OPNAME ## h264_chroma_mc2)(uint8_t *_dst/*align 8*/, uint8_t *_src/*align 1*/, int stride, int h, int x, int y){\
pixel *dst = (pixel*)_dst;\
pixel *src = (pixel*)_src;\

2
libavcodec/mpegvideo.c
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@ -2179,7 +2179,7 @@ static inline int hpel_motion_lowres(MpegEncContext *s,
int motion_x, int motion_y)
{
const int lowres = s->avctx->lowres;
const int op_index = FFMIN(lowres, 2);
const int op_index = FFMIN(lowres, 3);
const int s_mask = (2 << lowres) - 1;
int emu = 0;
int sx, sy;