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Use correct chroma co-siting offsets in D3D11

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Introduced in f67272b153
This commit is contained in:
ns6089 2025-11-03 00:55:51 +03:00 • committed by Cameron Gutman
commit fd314db27e
1 changed files with 14 additions and 17 deletions
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31
app/streaming/video/ffmpeg-renderers/d3d11va.cpp
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@ -786,41 +786,38 @@ void D3D11VARenderer::bindColorConversion(AVFrame* frame)
switch (frame->chroma_location) { switch (frame->chroma_location) {
default: default:
case AVCHROMA_LOC_LEFT: case AVCHROMA_LOC_LEFT:
constBuf.chromaOffset[0] = 0; constBuf.chromaOffset[0] = 0.5;
constBuf.chromaOffset[1] = 0.5; constBuf.chromaOffset[1] = 0;
break; break;
case AVCHROMA_LOC_CENTER: case AVCHROMA_LOC_CENTER:
constBuf.chromaOffset[0] = 0;
constBuf.chromaOffset[1] = 0;
break;
case AVCHROMA_LOC_TOPLEFT:
constBuf.chromaOffset[0] = 0.5; constBuf.chromaOffset[0] = 0.5;
constBuf.chromaOffset[1] = 0.5; constBuf.chromaOffset[1] = 0.5;
break; break;
case AVCHROMA_LOC_TOPLEFT:
constBuf.chromaOffset[0] = 0;
constBuf.chromaOffset[1] = 0;
break;
case AVCHROMA_LOC_TOP: case AVCHROMA_LOC_TOP:
constBuf.chromaOffset[0] = 0.5; constBuf.chromaOffset[0] = 0;
constBuf.chromaOffset[1] = 0; constBuf.chromaOffset[1] = 0.5;
break; break;
case AVCHROMA_LOC_BOTTOMLEFT: case AVCHROMA_LOC_BOTTOMLEFT:
constBuf.chromaOffset[0] = 0; constBuf.chromaOffset[0] = 0.5;
constBuf.chromaOffset[1] = 1.0; constBuf.chromaOffset[1] = -0.5;
break; break;
case AVCHROMA_LOC_BOTTOM: case AVCHROMA_LOC_BOTTOM:
constBuf.chromaOffset[0] = 0.5; constBuf.chromaOffset[0] = 0;
constBuf.chromaOffset[1] = 1.0; constBuf.chromaOffset[1] = -0.5;
break; break;
} }
constBuf.chromaOffset[0] /= m_TextureWidth;
constBuf.chromaOffset[1] /= m_TextureHeight;
if (yuv444) { if (yuv444) {
// 4:4:4 has no subsampling // 4:4:4 has no subsampling
constBuf.chromaOffset[0] = 0; constBuf.chromaOffset[0] = 0;
constBuf.chromaOffset[1] = 0; constBuf.chromaOffset[1] = 0;
} }
else {
// 4:2:0 has 2x2 subsampling
constBuf.chromaOffset[0] /= m_TextureWidth / 2;
constBuf.chromaOffset[1] /= m_TextureHeight / 2;
}
D3D11_SUBRESOURCE_DATA constData = {}; D3D11_SUBRESOURCE_DATA constData = {};
constData.pSysMem = &constBuf; constData.pSysMem = &constBuf;