Changeset 137 in SHVCSoftware for branches/SHM-2.0-dev/source/Lib/TLibEncoder

Timestamp:

2 May 2013, 08:47:06 (12 years ago)

Author:

mediatek

Message:

M0133/M0449: inter-layer MV scaling and pixel mapping position calculation
Author: Peter Chuang <peter.chuang@…>

File:

• branches/SHM-2.0-dev/source/Lib/TLibEncoder/TEncGOP.cpp (modified) (1 diff)

branches/SHM-2.0-dev/source/Lib/TLibEncoder/TEncGOP.cpp

@@ -970 +970 @@
 
     UInt uiNumSlices = 1;
+
+#if SIMPLIFIED_MV_POS_SCALING
+    if (m_layerId > 0)
+    {
+      const Window &confBL = pcSlice->getBaseColPic()->getPicYuvRec()->getConformanceWindow();
+      const Window &confEL = pcPic->getPicYuvRec()->getConformanceWindow();
+
+      Int widthBL   = pcSlice->getBaseColPic()->getPicYuvRec()->getWidth () - confBL.getWindowLeftOffset() - confBL.getWindowRightOffset();
+      Int heightBL  = pcSlice->getBaseColPic()->getPicYuvRec()->getHeight() - confBL.getWindowTopOffset() - confBL.getWindowBottomOffset();
+
+      Int widthEL   = pcPic->getPicYuvRec()->getWidth() - confEL.getWindowLeftOffset() - confEL.getWindowRightOffset();
+      Int heightEL  = pcPic->getPicYuvRec()->getHeight() - confEL.getWindowTopOffset() - confEL.getWindowBottomOffset();
+
+      g_mvScalingFactor[m_layerId][0] = Clip3(-4096, 4095, ((widthEL  << 8) + (widthBL  >> 1)) / widthBL);
+      g_mvScalingFactor[m_layerId][1] = Clip3(-4096, 4095, ((heightEL << 8) + (heightBL >> 1)) / heightBL);
+
+      g_posScalingFactor[m_layerId][0] = ((widthBL  << 16) + (widthEL  >> 1)) / widthEL;
+      g_posScalingFactor[m_layerId][1] = ((heightBL << 16) + (heightEL >> 1)) / heightEL;
+    }
+#endif
 
     UInt uiInternalAddress = pcPic->getNumPartInCU()-4;