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openh264/codec/common/deblocking_common.cpp

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7.8 KiB
C++
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#include "deblocking_common.h"
#include "macros.h"
// C code only
void_t DeblockLumaLt4_c (uint8_t* pPix, int32_t iStrideX, int32_t iStrideY, int32_t iAlpha, int32_t iBeta,
int8_t* pTc) {
for (int32_t i = 0; i < 16; i++) {
int32_t iTc0 = pTc[i >> 2];
if (iTc0 >= 0) {
int32_t p0 = pPix[-iStrideX];
int32_t p1 = pPix[-2 * iStrideX];
int32_t p2 = pPix[-3 * iStrideX];
int32_t q0 = pPix[0];
int32_t q1 = pPix[iStrideX];
int32_t q2 = pPix[2 * iStrideX];
bool_t bDetaP0Q0 = WELS_ABS (p0 - q0) < iAlpha;
bool_t bDetaP1P0 = WELS_ABS (p1 - p0) < iBeta;
bool_t bDetaQ1Q0 = WELS_ABS (q1 - q0) < iBeta;
int32_t iTc = iTc0;
if (bDetaP0Q0 && bDetaP1P0 && bDetaQ1Q0) {
bool_t bDetaP2P0 = WELS_ABS (p2 - p0) < iBeta;
bool_t bDetaQ2Q0 = WELS_ABS (q2 - q0) < iBeta;
if (bDetaP2P0) {
pPix[-2 * iStrideX] = p1 + WELS_CLIP3 ((p2 + ((p0 + q0 + 1) >> 1) - (p1 << 1)) >> 1, -iTc0, iTc0);
iTc++;
}
if (bDetaQ2Q0) {
pPix[iStrideX] = q1 + WELS_CLIP3 ((q2 + ((p0 + q0 + 1) >> 1) - (q1 << 1)) >> 1, -iTc0, iTc0);
iTc++;
}
int32_t iDeta = WELS_CLIP3 ((((q0 - p0) << 2) + (p1 - q1) + 4) >> 3, -iTc, iTc);
pPix[-iStrideX] = WELS_CLIP1 (p0 + iDeta); /* p0' */
pPix[0] = WELS_CLIP1 (q0 - iDeta); /* q0' */
}
}
pPix += iStrideY;
}
}
void_t DeblockLumaEq4_c (uint8_t* pPix, int32_t iStrideX, int32_t iStrideY, int32_t iAlpha, int32_t iBeta) {
int32_t p0, p1, p2, q0, q1, q2;
int32_t iDetaP0Q0;
bool_t bDetaP1P0, bDetaQ1Q0;
for (int32_t i = 0; i < 16; i++) {
p0 = pPix[-iStrideX];
p1 = pPix[-2 * iStrideX];
p2 = pPix[-3 * iStrideX];
q0 = pPix[0];
q1 = pPix[iStrideX];
q2 = pPix[2 * iStrideX];
iDetaP0Q0 = WELS_ABS (p0 - q0);
bDetaP1P0 = WELS_ABS (p1 - p0) < iBeta;
bDetaQ1Q0 = WELS_ABS (q1 - q0) < iBeta;
if ((iDetaP0Q0 < iAlpha) && bDetaP1P0 && bDetaQ1Q0) {
if (iDetaP0Q0 < ((iAlpha >> 2) + 2)) {
bool_t bDetaP2P0 = WELS_ABS (p2 - p0) < iBeta;
bool_t bDetaQ2Q0 = WELS_ABS (q2 - q0) < iBeta;
if (bDetaP2P0) {
const int32_t p3 = pPix[-4 * iStrideX];
pPix[-iStrideX] = (p2 + (p1 << 1) + (p0 << 1) + (q0 << 1) + q1 + 4) >> 3; //p0
pPix[-2 * iStrideX] = (p2 + p1 + p0 + q0 + 2) >> 2; //p1
pPix[-3 * iStrideX] = ((p3 << 1) + p2 + (p2 << 1) + p1 + p0 + q0 + 4) >> 3;//p2
} else {
pPix[-1 * iStrideX] = ((p1 << 1) + p0 + q1 + 2) >> 2; //p0
}
if (bDetaQ2Q0) {
const int32_t q3 = pPix[3 * iStrideX];
pPix[0] = (p1 + (p0 << 1) + (q0 << 1) + (q1 << 1) + q2 + 4) >> 3; //q0
pPix[iStrideX] = (p0 + q0 + q1 + q2 + 2) >> 2; //q1
pPix[2 * iStrideX] = ((q3 << 1) + q2 + (q2 << 1) + q1 + q0 + p0 + 4) >> 3;//q2
} else {
pPix[0] = ((q1 << 1) + q0 + p1 + 2) >> 2; //q0
}
} else {
pPix[-iStrideX] = ((p1 << 1) + p0 + q1 + 2) >> 2; //p0
pPix[ 0] = ((q1 << 1) + q0 + p1 + 2) >> 2; //q0
}
}
pPix += iStrideY;
}
}
void_t DeblockLumaLt4V_c (uint8_t* pPix, int32_t iStride, int32_t iAlpha, int32_t iBeta, int8_t* tc) {
DeblockLumaLt4_c (pPix, iStride, 1, iAlpha, iBeta, tc);
}
void_t DeblockLumaLt4H_c (uint8_t* pPix, int32_t iStride, int32_t iAlpha, int32_t iBeta, int8_t* tc) {
DeblockLumaLt4_c (pPix, 1, iStride, iAlpha, iBeta, tc);
}
void_t DeblockLumaEq4V_c (uint8_t* pPix, int32_t iStride, int32_t iAlpha, int32_t iBeta) {
DeblockLumaEq4_c (pPix, iStride, 1, iAlpha, iBeta);
}
void_t DeblockLumaEq4H_c (uint8_t* pPix, int32_t iStride, int32_t iAlpha, int32_t iBeta) {
DeblockLumaEq4_c (pPix, 1, iStride, iAlpha, iBeta);
}
void_t DeblockChromaLt4_c (uint8_t* pPixCb, uint8_t* pPixCr, int32_t iStrideX, int32_t iStrideY, int32_t iAlpha,
int32_t iBeta, int8_t* pTc) {
int32_t p0, p1, q0, q1, iDeta;
bool_t bDetaP0Q0, bDetaP1P0, bDetaQ1Q0;
for (int32_t i = 0; i < 8; i++) {
int32_t iTc0 = pTc[i >> 1];
if (iTc0 > 0) {
p0 = pPixCb[-iStrideX];
p1 = pPixCb[-2 * iStrideX];
q0 = pPixCb[0];
q1 = pPixCb[iStrideX];
bDetaP0Q0 = WELS_ABS (p0 - q0) < iAlpha;
bDetaP1P0 = WELS_ABS (p1 - p0) < iBeta;
bDetaQ1Q0 = WELS_ABS (q1 - q0) < iBeta;
if (bDetaP0Q0 && bDetaP1P0 && bDetaQ1Q0) {
iDeta = WELS_CLIP3 ((((q0 - p0) << 2) + (p1 - q1) + 4) >> 3, -iTc0, iTc0);
pPixCb[-iStrideX] = WELS_CLIP1 (p0 + iDeta); /* p0' */
pPixCb[0] = WELS_CLIP1 (q0 - iDeta); /* q0' */
}
p0 = pPixCr[-iStrideX];
p1 = pPixCr[-2 * iStrideX];
q0 = pPixCr[0];
q1 = pPixCr[iStrideX];
bDetaP0Q0 = WELS_ABS (p0 - q0) < iAlpha;
bDetaP1P0 = WELS_ABS (p1 - p0) < iBeta;
bDetaQ1Q0 = WELS_ABS (q1 - q0) < iBeta;
if (bDetaP0Q0 && bDetaP1P0 && bDetaQ1Q0) {
iDeta = WELS_CLIP3 ((((q0 - p0) << 2) + (p1 - q1) + 4) >> 3, -iTc0, iTc0);
pPixCr[-iStrideX] = WELS_CLIP1 (p0 + iDeta); /* p0' */
pPixCr[0] = WELS_CLIP1 (q0 - iDeta); /* q0' */
}
}
pPixCb += iStrideY;
pPixCr += iStrideY;
}
}
void_t DeblockChromaEq4_c (uint8_t* pPixCb, uint8_t* pPixCr, int32_t iStrideX, int32_t iStrideY, int32_t iAlpha,
int32_t iBeta) {
int32_t p0, p1, q0, q1;
bool_t bDetaP0Q0, bDetaP1P0, bDetaQ1Q0;
for (int32_t i = 0; i < 8; i++) {
//cb
p0 = pPixCb[-iStrideX];
p1 = pPixCb[-2 * iStrideX];
q0 = pPixCb[0];
q1 = pPixCb[iStrideX];
bDetaP0Q0 = WELS_ABS (p0 - q0) < iAlpha;
bDetaP1P0 = WELS_ABS (p1 - p0) < iBeta;
bDetaQ1Q0 = WELS_ABS (q1 - q0) < iBeta;
if (bDetaP0Q0 && bDetaP1P0 && bDetaQ1Q0) {
pPixCb[-iStrideX] = ((p1 << 1) + p0 + q1 + 2) >> 2; /* p0' */
pPixCb[0] = ((q1 << 1) + q0 + p1 + 2) >> 2; /* q0' */
}
//cr
p0 = pPixCr[-iStrideX];
p1 = pPixCr[-2 * iStrideX];
q0 = pPixCr[0];
q1 = pPixCr[iStrideX];
bDetaP0Q0 = WELS_ABS (p0 - q0) < iAlpha;
bDetaP1P0 = WELS_ABS (p1 - p0) < iBeta;
bDetaQ1Q0 = WELS_ABS (q1 - q0) < iBeta;
if (bDetaP0Q0 && bDetaP1P0 && bDetaQ1Q0) {
pPixCr[-iStrideX] = ((p1 << 1) + p0 + q1 + 2) >> 2; /* p0' */
pPixCr[0] = ((q1 << 1) + q0 + p1 + 2) >> 2; /* q0' */
}
pPixCr += iStrideY;
pPixCb += iStrideY;
}
}
void_t DeblockChromaLt4V_c (uint8_t* pPixCb, uint8_t* pPixCr, int32_t iStride, int32_t iAlpha, int32_t iBeta,
int8_t* tc) {
DeblockChromaLt4_c (pPixCb, pPixCr, iStride, 1, iAlpha, iBeta, tc);
}
void_t DeblockChromaLt4H_c (uint8_t* pPixCb, uint8_t* pPixCr, int32_t iStride, int32_t iAlpha, int32_t iBeta,
int8_t* tc) {
DeblockChromaLt4_c (pPixCb, pPixCr, 1, iStride, iAlpha, iBeta, tc);
}
void_t DeblockChromaEq4V_c (uint8_t* pPixCb, uint8_t* pPixCr, int32_t iStride, int32_t iAlpha, int32_t iBeta) {
DeblockChromaEq4_c (pPixCb, pPixCr, iStride, 1, iAlpha, iBeta);
}
void_t DeblockChromaEq4H_c (uint8_t* pPixCb, uint8_t* pPixCr, int32_t iStride, int32_t iAlpha, int32_t iBeta) {
DeblockChromaEq4_c (pPixCb, pPixCr, 1, iStride, iAlpha, iBeta);
}
#ifdef X86_ASM
extern "C" {
void DeblockLumaLt4H_ssse3 (uint8_t* pPixY, int32_t iStride, int32_t iAlpha, int32_t iBeta, int8_t* pTc) {
ENFORCE_STACK_ALIGN_1D (uint8_t, uiBuf, 16 * 8, 16);
DeblockLumaTransposeH2V_sse2 (pPixY - 4, iStride, &uiBuf[0]);
DeblockLumaLt4V_ssse3 (&uiBuf[4 * 16], 16, iAlpha, iBeta, pTc);
DeblockLumaTransposeV2H_sse2 (pPixY - 4, iStride, &uiBuf[0]);
}
void DeblockLumaEq4H_ssse3 (uint8_t* pPixY, int32_t iStride, int32_t iAlpha, int32_t iBeta) {
ENFORCE_STACK_ALIGN_1D (uint8_t, uiBuf, 16 * 8, 16);
DeblockLumaTransposeH2V_sse2 (pPixY - 4, iStride, &uiBuf[0]);
DeblockLumaEq4V_ssse3 (&uiBuf[4 * 16], 16, iAlpha, iBeta);
DeblockLumaTransposeV2H_sse2 (pPixY - 4, iStride, &uiBuf[0]);
}
}
#endif
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