This moves c functions to process blocks horozontally into a seperate
file, so that none of the postprocessing algorithms are in the main
postprecess.c file
---
libpostproc/postprocess.c | 352 +
libpostproc/postprocess_c.c | 373
2 files changed, 374 insertions(+), 351 deletions(-)
create mode 100644 libpostproc/postprocess_c.c
diff --git a/libpostproc/postprocess.c b/libpostproc/postprocess.c
index 9d89782..86c0520 100644
--- a/libpostproc/postprocess.c
+++ b/libpostproc/postprocess.c
@@ -199,357 +199,7 @@ static inline void prefetcht2(const void *p)
}
#endif
-/* The horizontal functions exist only in C because the MMX
- * code is faster with vertical filters and transposing. */
-
-/**
- * Check if the given 8x8 Block is mostly flat
- */
-static inline int isHorizDC_C(const uint8_t src[], int stride, const PPContext
*c)
-{
-int numEq= 0;
-int y;
-const int dcOffset= ((c-nonBQP*c-ppMode.baseDcDiff)8) + 1;
-const int dcThreshold= dcOffset*2 + 1;
-
-for(y=0; yBLOCK_SIZE; y++){
-numEq += ((unsigned)(src[0] - src[1] + dcOffset)) dcThreshold;
-numEq += ((unsigned)(src[1] - src[2] + dcOffset)) dcThreshold;
-numEq += ((unsigned)(src[2] - src[3] + dcOffset)) dcThreshold;
-numEq += ((unsigned)(src[3] - src[4] + dcOffset)) dcThreshold;
-numEq += ((unsigned)(src[4] - src[5] + dcOffset)) dcThreshold;
-numEq += ((unsigned)(src[5] - src[6] + dcOffset)) dcThreshold;
-numEq += ((unsigned)(src[6] - src[7] + dcOffset)) dcThreshold;
-src+= stride;
-}
-return numEq c-ppMode.flatnessThreshold;
-}
-
-/**
- * Check if the middle 8x8 Block in the given 8x16 block is flat
- */
-static inline int isVertDC_C(const uint8_t src[], int stride, const PPContext
*c)
-{
-int numEq= 0;
-int y;
-const int dcOffset= ((c-nonBQP*c-ppMode.baseDcDiff)8) + 1;
-const int dcThreshold= dcOffset*2 + 1;
-
-src+= stride*4; // src points to begin of the 8x8 Block
-for(y=0; yBLOCK_SIZE-1; y++){
-numEq += ((unsigned)(src[0] - src[0+stride] + dcOffset)) dcThreshold;
-numEq += ((unsigned)(src[1] - src[1+stride] + dcOffset)) dcThreshold;
-numEq += ((unsigned)(src[2] - src[2+stride] + dcOffset)) dcThreshold;
-numEq += ((unsigned)(src[3] - src[3+stride] + dcOffset)) dcThreshold;
-numEq += ((unsigned)(src[4] - src[4+stride] + dcOffset)) dcThreshold;
-numEq += ((unsigned)(src[5] - src[5+stride] + dcOffset)) dcThreshold;
-numEq += ((unsigned)(src[6] - src[6+stride] + dcOffset)) dcThreshold;
-numEq += ((unsigned)(src[7] - src[7+stride] + dcOffset)) dcThreshold;
-src+= stride;
-}
-return numEq c-ppMode.flatnessThreshold;
-}
-
-static inline int isHorizMinMaxOk_C(const uint8_t src[], int stride, int QP)
-{
-int i;
-for(i=0; i2; i++){
-if((unsigned)(src[0] - src[5] + 2*QP) 4*QP) return 0;
-src += stride;
-if((unsigned)(src[2] - src[7] + 2*QP) 4*QP) return 0;
-src += stride;
-if((unsigned)(src[4] - src[1] + 2*QP) 4*QP) return 0;
-src += stride;
-if((unsigned)(src[6] - src[3] + 2*QP) 4*QP) return 0;
-src += stride;
-}
-return 1;
-}
-
-static inline int isVertMinMaxOk_C(const uint8_t src[], int stride, int QP)
-{
-int x;
-src+= stride*4;
-for(x=0; xBLOCK_SIZE; x+=4){
-if((unsigned)(src[ x + 0*stride] - src[ x + 5*stride] + 2*QP)
4*QP) return 0;
-if((unsigned)(src[1+x + 2*stride] - src[1+x + 7*stride] + 2*QP)
4*QP) return 0;
-if((unsigned)(src[2+x + 4*stride] - src[2+x + 1*stride] + 2*QP)
4*QP) return 0;
-if((unsigned)(src[3+x + 6*stride] - src[3+x + 3*stride] + 2*QP)
4*QP) return 0;
-}
-return 1;
-}
-
-static inline int horizClassify_C(const uint8_t src[], int stride, const
PPContext *c)
-{
-if( isHorizDC_C(src, stride, c) ){
-return isHorizMinMaxOk_C(src, stride, c-QP);
-}else{
-return 2;
-}
-}
-
-static inline int vertClassify_C(const uint8_t src[], int stride, const
PPContext *c)
-{
-if( isVertDC_C(src, stride, c) ){
-return isVertMinMaxOk_C(src, stride, c-QP);
-}else{
-return 2;
-}
-}
-
-static inline void doHorizDefFilter_C(uint8_t dst[], int stride, const
PPContext *c)
-{
-int y;
-for(y=0; yBLOCK_SIZE; y++){
-const int middleEnergy= 5*(dst[4] - dst[3]) + 2*(dst[2] - dst[5]);
-
-if(FFABS(middleEnergy) 8*c-QP){
-const int q=(dst[3] - dst[4])/2;
-const int leftEnergy= 5*(dst[2] - dst[1]) + 2*(dst[0] - dst[3]);
-const int rightEnergy= 5*(dst[6] - dst[5]) + 2*(dst[4] - dst[7]);
-
-int d= FFABS(middleEnergy) - FFMIN( FFABS(leftEnergy),
FFABS(rightEnergy) );
-d= FFMAX(d, 0);
-
-d= (5*d + 32) 6;
-d*= FFSIGN(-middleEnergy);
-
-if(q0)
-
