From d7b6876ae8f77c5db6c4c9b18382676d445668a1 Mon Sep 17 00:00:00 2001
From: Alexey Filippov <alexey.filippov@huawei.com>
Date: Mon, 28 Oct 2019 14:28:06 +0300
Subject: [PATCH] JVET-P0599: Cleanup of interpolation filtering for intra
prediction
---
source/Lib/CommonLib/IntraPrediction.cpp | 7 +++++++
source/Lib/CommonLib/TypeDef.h | 2 ++
2 files changed, 9 insertions(+)
diff --git a/source/Lib/CommonLib/IntraPrediction.cpp b/source/Lib/CommonLib/IntraPrediction.cpp
index 115a9cf26c..a18f450317 100644
--- a/source/Lib/CommonLib/IntraPrediction.cpp
+++ b/source/Lib/CommonLib/IntraPrediction.cpp
@@ -67,6 +67,7 @@ const uint8_t IntraPrediction::m_aucIntraFilter[MAX_INTRA_FILTER_DEPTHS] =
0 // 128xn
};
+#if !JVET_P0599_INTRA_SMOOTHING_INTERP_FILT
const TFilterCoeff g_intraGaussFilter[32][4] = {
{ 16, 32, 16, 0 },
{ 15, 29, 17, 3 },
@@ -101,6 +102,7 @@ const TFilterCoeff g_intraGaussFilter[32][4] = {
{ 3, 17, 29, 15 },
{ 3, 17, 29, 15 }
};
+#endif //!JVET_P0599_INTRA_SMOOTHING_INTERP_FILT
// ====================================================================================================================
// Constructor / destructor / initialize
@@ -618,8 +620,13 @@ void IntraPrediction::xPredIntraAng( const CPelBuf &pSrc, PelBuf &pDst, const Ch
{
const bool useCubicFilter = !m_ipaParam.interpolationFlag;
+#if JVET_P0599_INTRA_SMOOTHING_INTERP_FILT
+ const TFilterCoeff intraSmoothingFilter[4] = {TFilterCoeff(16 - (deltaFract >> 1)), TFilterCoeff(32 - (deltaFract >> 1)), TFilterCoeff(16 + (deltaFract >> 1)), TFilterCoeff(deltaFract >> 1)};
+ const TFilterCoeff* const f = (useCubicFilter) ? InterpolationFilter::getChromaFilterTable(deltaFract) : intraSmoothingFilter;
+#else //!JVET_P0599_INTRA_SMOOTHING_INTERP_FILT
const TFilterCoeff *const f =
(useCubicFilter) ? InterpolationFilter::getChromaFilterTable(deltaFract) : g_intraGaussFilter[deltaFract];
+#endif //JVET_P0599_INTRA_SMOOTHING_INTERP_FILT
for (int x = 0; x < width; x++)
{
diff --git a/source/Lib/CommonLib/TypeDef.h b/source/Lib/CommonLib/TypeDef.h
index e626ef8e89..4b182aced8 100644
--- a/source/Lib/CommonLib/TypeDef.h
+++ b/source/Lib/CommonLib/TypeDef.h
@@ -50,6 +50,8 @@
#include <assert.h>
#include <cassert>
+#define JVET_P0599_INTRA_SMOOTHING_INTERP_FILT 1 // JVET-P0599: Cleanup of interpolation filtering for intra prediction
+
#define JVET_P1026_MTS_SIGNALLING 1 // JVET-P1026: CU level MTS signalling
#define JVET_P0571_FIX_BS_BDPCM_CHROMA 1 // JVET-P0571: align boundary strength for Chroma BDPCM
--
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