ref: 37f20f1c5e951782436d735db55ed99d08fd22ce
dir: /codec/processing/src/denoise/denoise.cpp/
/*! * \copy * Copyright (c) 2013, Cisco Systems * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * */ #include "denoise.h" #include "cpu.h" WELSVP_NAMESPACE_BEGIN #define CALC_BI_STRIDE(iWidth, iBitcount) ((((iWidth) * (iBitcount) + 31) & ~31) >> 3) /////////////////////////////////////////////////////////////////////////////////////////////////////////////// CDenoiser::CDenoiser (int32_t iCpuFlag) { m_CPUFlag = iCpuFlag; m_eMethod = METHOD_DENOISE; WelsMemset (&m_pfDenoise, 0, sizeof (m_pfDenoise)); m_uiSpaceRadius = DENOISE_GRAY_RADIUS; m_fSigmaGrey = DENOISE_GRAY_SIGMA; m_uiType = DENOISE_ALL_COMPONENT; InitDenoiseFunc (m_pfDenoise, m_CPUFlag); } CDenoiser::~CDenoiser() { } void CDenoiser::InitDenoiseFunc (SDenoiseFuncs& denoiser, int32_t iCpuFlag) { denoiser.pfBilateralLumaFilter8 = BilateralLumaFilter8_c; denoiser.pfWaverageChromaFilter8 = WaverageChromaFilter8_c; #if defined(X86_ASM) if (iCpuFlag & WELS_CPU_SSE2) { denoiser.pfBilateralLumaFilter8 = BilateralLumaFilter8_sse2; denoiser.pfWaverageChromaFilter8 = WaverageChromaFilter8_sse2; } #endif } EResult CDenoiser::Process (int32_t iType, SPixMap* pSrc, SPixMap* dst) { uint8_t* pSrcY = (uint8_t*)pSrc->pPixel[0]; uint8_t* pSrcU = (uint8_t*)pSrc->pPixel[1]; uint8_t* pSrcV = (uint8_t*)pSrc->pPixel[2]; if (pSrcY == NULL || pSrcU == NULL || pSrcV == NULL) { return RET_INVALIDPARAM; } int32_t iWidthY = pSrc->sRect.iRectWidth; int32_t iHeightY = pSrc->sRect.iRectHeight; int32_t iWidthUV = iWidthY >> 1; int32_t iHeightUV = iHeightY >> 1; if (m_uiType & DENOISE_Y_COMPONENT) BilateralDenoiseLuma (pSrcY, iWidthY, iHeightY, pSrc->iStride[0]); if (m_uiType & DENOISE_U_COMPONENT) WaverageDenoiseChroma (pSrcU, iWidthUV, iHeightUV, pSrc->iStride[1]); if (m_uiType & DENOISE_V_COMPONENT) WaverageDenoiseChroma (pSrcV, iWidthUV, iHeightUV, pSrc->iStride[2]); return RET_SUCCESS; } void CDenoiser::BilateralDenoiseLuma (uint8_t* pSrcY, int32_t iWidth, int32_t iHeight, int32_t iStride) { int32_t w; pSrcY = pSrcY + m_uiSpaceRadius * iStride; for (int32_t h = m_uiSpaceRadius; h < iHeight - m_uiSpaceRadius; h++) { for (w = m_uiSpaceRadius; w < iWidth - m_uiSpaceRadius - TAIL_OF_LINE8; w += 8) { m_pfDenoise.pfBilateralLumaFilter8 (pSrcY + w, iStride); } for (w = w + TAIL_OF_LINE8; w < iWidth - m_uiSpaceRadius; w++) { Gauss3x3Filter (pSrcY + w, iStride); } pSrcY += iStride; } } void CDenoiser::WaverageDenoiseChroma (uint8_t* pSrcUV, int32_t iWidth, int32_t iHeight, int32_t iStride) { int32_t w; pSrcUV = pSrcUV + UV_WINDOWS_RADIUS * iStride; for (int32_t h = UV_WINDOWS_RADIUS; h < iHeight - UV_WINDOWS_RADIUS; h++) { for (w = UV_WINDOWS_RADIUS; w < iWidth - UV_WINDOWS_RADIUS - TAIL_OF_LINE8; w += 8) { m_pfDenoise.pfWaverageChromaFilter8 (pSrcUV + w, iStride); } for (w = w + TAIL_OF_LINE8; w < iWidth - UV_WINDOWS_RADIUS; w++) { Gauss3x3Filter (pSrcUV + w, iStride); } pSrcUV += iStride; } } WELSVP_NAMESPACE_END