virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-11-26 19:01:44 +02:00
Code Issues Releases Activity

Implement full horizontal chroma for rgb/bgr24/32 output.

Browse Source 
Originally committed as revision 27580 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale
This commit is contained in:
Michael Niedermayer 2008-09-11 14:39:12 +00:00
parent 36b3e36e00
commit f0faee4c63
2 changed files with 115 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

88
libswscale/swscale.c
View File

@ -473,6 +473,43 @@ static inline void yuv2nv12XinC(int16_t *lumFilter, int16_t **lumSrc, int lumFil
else if (V<0) V=0; \
}
#define YSCALE_YUV_2_PACKEDX_FULL_C \
for (i=0; i<dstW; i++){\
int j;\
int Y = 0;\
int U = -128<<19;\
int V = -128<<19;\
int R,G,B;\
\
for (j=0; j<lumFilterSize; j++){\
Y += lumSrc[j][i ] * lumFilter[j];\
}\
for (j=0; j<chrFilterSize; j++){\
U += chrSrc[j][i ] * chrFilter[j];\
V += chrSrc[j][i+VOFW] * chrFilter[j];\
}\
Y >>=10;\
U >>=10;\
V >>=10;\
#define YSCALE_YUV_2_RGBX_FULL_C(rnd) \
YSCALE_YUV_2_PACKEDX_FULL_C\
Y-= c->oy;\
Y*= c->cy;\
Y+= rnd;\
R= Y + V*c->cvr;\
G= Y + V*c->cvg + U*c->cug;\
B= Y + U*c->cub;\
if ((R|G|B)&(0xC0000000)){\
if (R>=(256<<22)) R=(256<<22)-1; \
else if (R<0)R=0; \
if (G>=(256<<22)) G=(256<<22)-1; \
else if (G<0)G=0; \
if (B>=(256<<22)) B=(256<<22)-1; \
else if (B<0)B=0; \
}\
#define YSCALE_YUV_2_GRAY16_C \
for (i=0; i<(dstW>>1); i++){\
int j;\
@ -756,6 +793,42 @@ static inline void yuv2packedXinC(SwsContext *c, int16_t *lumFilter, int16_t **l
YSCALE_YUV_2_ANYRGB_C(YSCALE_YUV_2_RGBX_C, YSCALE_YUV_2_PACKEDX_C(void), YSCALE_YUV_2_GRAY16_C, YSCALE_YUV_2_MONOBLACKX_C)
}
static inline void yuv2rgbXinC_full(SwsContext *c, int16_t *lumFilter, int16_t **lumSrc, int lumFilterSize,
int16_t *chrFilter, int16_t **chrSrc, int chrFilterSize,
uint8_t *dest, int dstW, int y)
{
int i;
int step= fmt_depth(c->dstFormat)/8;
switch(c->dstFormat){
case PIX_FMT_ARGB:
dest++;
case PIX_FMT_RGB24:
case PIX_FMT_RGBA:
YSCALE_YUV_2_RGBX_FULL_C(1<<21)
dest[0]= R>>22;
dest[1]= G>>22;
dest[2]= B>>22;
dest[3]= 0;
dest+= step;
}
break;
case PIX_FMT_ABGR:
dest++;
case PIX_FMT_BGR24:
case PIX_FMT_BGRA:
YSCALE_YUV_2_RGBX_FULL_C(1<<21)
dest[0]= B>>22;
dest[1]= G>>22;
dest[2]= R>>22;
dest[3]= 0;
dest+= step;
}
break;
default:
assert(0);
}
}
//Note: we have C, X86, MMX, MMX2, 3DNOW version therse no 3DNOW+MMX2 one
//Plain C versions
@ -1880,6 +1953,13 @@ int sws_setColorspaceDetails(SwsContext *c, const int inv_table[4], int srcRange
c->ugCoeff= roundToInt16(cgu*8192) * 0x0001000100010001ULL;
c->yOffset= roundToInt16(oy * 8) * 0x0001000100010001ULL;
c->cy = (int16_t)roundToInt16(cy <<13);
c->oy = (int16_t)roundToInt16(oy <<9);
c->cvr= (int16_t)roundToInt16(crv<<13);
c->cvg= (int16_t)roundToInt16(cgv<<13);
c->cug= (int16_t)roundToInt16(cgu<<13);
c->cub= (int16_t)roundToInt16(cbu<<13);
yuv2rgb_c_init_tables(c, inv_table, srcRange, brightness, contrast, saturation);
//FIXME factorize
@ -1993,7 +2073,13 @@ SwsContext *sws_getContext(int srcW, int srcH, int srcFormat, int dstW, int dstH
av_log(NULL, AV_LOG_ERROR, "swScaler: Exactly one scaler algorithm must be choosen\n");
return NULL;
}
if( dstFormat != PIX_FMT_RGB32 //HACK
&& dstFormat != PIX_FMT_RGB32_1
&& dstFormat != PIX_FMT_RGB24
&& dstFormat != PIX_FMT_BGR24
&& dstFormat != PIX_FMT_BGR32
&& dstFormat != PIX_FMT_BGR32_1)
flags &= ~SWS_FULL_CHR_H_INT;
/* sanity check */
if (srcW<4 || srcH<1 || dstW<8 || dstH<1) //FIXME check if these are enough and try to lowwer them after fixing the relevant parts of the code

28
libswscale/swscale_template.c
View File

@ -3132,8 +3132,15 @@ static int RENAME(swScale)(SwsContext *c, uint8_t* src[], int srcStride[], int s
if (vLumFilterSize == 1 && vChrFilterSize == 2) //unscaled RGB
{
int chrAlpha= vChrFilter[2*dstY+1];
if(flags & SWS_FULL_CHR_H_INT){
yuv2rgbXinC_full(c, //FIXME write a packed1_full function
vLumFilter+dstY*vLumFilterSize, lumSrcPtr, vLumFilterSize,
vChrFilter+dstY*vChrFilterSize, chrSrcPtr, vChrFilterSize,
dest, dstW, dstY);
}else{
RENAME(yuv2packed1)(c, *lumSrcPtr, *chrSrcPtr, *(chrSrcPtr+1),
dest, dstW, chrAlpha, dstFormat, flags, dstY);
}
}
else if (vLumFilterSize == 2 && vChrFilterSize == 2) //bilinear upscale RGB
{
@ -3143,15 +3150,29 @@ static int RENAME(swScale)(SwsContext *c, uint8_t* src[], int srcStride[], int s
lumMmxFilter[3]= vLumFilter[2*dstY ]*0x10001;
chrMmxFilter[2]=
chrMmxFilter[3]= vChrFilter[2*chrDstY]*0x10001;
if(flags & SWS_FULL_CHR_H_INT){
yuv2rgbXinC_full(c, //FIXME write a packed2_full function
vLumFilter+dstY*vLumFilterSize, lumSrcPtr, vLumFilterSize,
vChrFilter+dstY*vChrFilterSize, chrSrcPtr, vChrFilterSize,
dest, dstW, dstY);
}else{
RENAME(yuv2packed2)(c, *lumSrcPtr, *(lumSrcPtr+1), *chrSrcPtr, *(chrSrcPtr+1),
dest, dstW, lumAlpha, chrAlpha, dstY);
}
}
else //general RGB
{
if(flags & SWS_FULL_CHR_H_INT){
yuv2rgbXinC_full(c,
vLumFilter+dstY*vLumFilterSize, lumSrcPtr, vLumFilterSize,
vChrFilter+dstY*vChrFilterSize, chrSrcPtr, vChrFilterSize,
dest, dstW, dstY);
}else{
RENAME(yuv2packedX)(c,
vLumFilter+dstY*vLumFilterSize, lumSrcPtr, vLumFilterSize,
vChrFilter+dstY*vChrFilterSize, chrSrcPtr, vChrFilterSize,
dest, dstW, dstY);
}
}
}
}
@ -3180,10 +3201,17 @@ static int RENAME(swScale)(SwsContext *c, uint8_t* src[], int srcStride[], int s
{
assert(lumSrcPtr + vLumFilterSize - 1 < lumPixBuf + vLumBufSize*2);
assert(chrSrcPtr + vChrFilterSize - 1 < chrPixBuf + vChrBufSize*2);
if(flags & SWS_FULL_CHR_H_INT){
yuv2rgbXinC_full(c,
vLumFilter+dstY*vLumFilterSize, lumSrcPtr, vLumFilterSize,
vChrFilter+dstY*vChrFilterSize, chrSrcPtr, vChrFilterSize,
dest, dstW, dstY);
}else{
yuv2packedXinC(c,
vLumFilter+dstY*vLumFilterSize, lumSrcPtr, vLumFilterSize,
vChrFilter+dstY*vChrFilterSize, chrSrcPtr, vChrFilterSize,
dest, dstW, dstY);
}
}
}
}