diff --git a/source/Lib/CommonLib/InterPrediction.cpp b/source/Lib/CommonLib/InterPrediction.cpp
index 52ca3e3ca2890df0f22120417b6cb35c23ff6b1b..3d622fdb50bf66908d3c26f681e8b581d5f08481 100644
--- a/source/Lib/CommonLib/InterPrediction.cpp
+++ b/source/Lib/CommonLib/InterPrediction.cpp
@@ -2349,6 +2349,33 @@ bool InterPrediction::xPredInterBlkRPR( const std::pair<int, int>& scalingRatio,
int refPicWidth = refPic->cs->pps->getPicWidthInLumaSamples();
int refPicHeight = refPic->cs->pps->getPicHeightInLumaSamples();
+#if JVET_P0088_P0353_RPR_FILTERS
+ int xFilter = filterIndex;
+ int yFilter = filterIndex;
+ const int rprThreshold1 = ( 1 << SCALE_RATIO_BITS ) * 5 / 4;
+ const int rprThreshold2 = ( 1 << SCALE_RATIO_BITS ) * 7 / 4;
+ if( filterIndex == 0 )
+ {
+ if( scalingRatio.first > rprThreshold2 )
+ {
+ xFilter = 4;
+ }
+ else if( scalingRatio.first > rprThreshold1 )
+ {
+ xFilter = 3;
+ }
+
+ if( scalingRatio.second > rprThreshold2 )
+ {
+ yFilter = 4;
+ }
+ else if( scalingRatio.second > rprThreshold1 )
+ {
+ yFilter = 3;
+ }
+ }
+#endif
+
const int posShift = SCALE_RATIO_BITS - 4;
int stepX = ( scalingRatio.first + 8 ) >> 4;
int stepY = ( scalingRatio.second + 8 ) >> 4;
@@ -2397,7 +2424,11 @@ bool InterPrediction::xPredInterBlkRPR( const std::pair<int, int>& scalingRatio,
refBuf = refPic->getRecoBuf( CompArea( compID, chFmt, offset, Size( 1, refHeight ) ), wrapRef );
Pel* tempBuf = buffer + col;
+#if JVET_P0088_P0353_RPR_FILTERS
+ m_if.filterHor( compID, (Pel*)refBuf.buf - ( ( vFilterSize >> 1 ) - 1 ) * refBuf.stride, refBuf.stride, tempBuf, tmpStride, 1, refHeight + vFilterSize - 1 + extSize, xFrac, false, chFmt, clpRng, xFilter, false, useAltHpelIf );
+#else
m_if.filterHor( compID, (Pel*)refBuf.buf - ( ( vFilterSize >> 1 ) - 1 ) * refBuf.stride, refBuf.stride, tempBuf, tmpStride, 1, refHeight + vFilterSize - 1 + extSize, xFrac, false, chFmt, clpRng, filterIndex, false, useAltHpelIf );
+#endif
}
for( row = 0; row < height; row++ )
@@ -2412,7 +2443,11 @@ bool InterPrediction::xPredInterBlkRPR( const std::pair<int, int>& scalingRatio,
Pel* tempBuf = buffer + ( yInt - yInt0 ) * tmpStride;
JVET_J0090_SET_CACHE_ENABLE( false );
+#if JVET_P0088_P0353_RPR_FILTERS
+ m_if.filterVer( compID, tempBuf + ( ( vFilterSize >> 1 ) - 1 ) * tmpStride, tmpStride, dst + row * dstStride, dstStride, width, 1, yFrac, false, rndRes, chFmt, clpRng, yFilter, false, useAltHpelIf );
+#else
m_if.filterVer( compID, tempBuf + ( ( vFilterSize >> 1 ) - 1 ) * tmpStride, tmpStride, dst + row * dstStride, dstStride, width, 1, yFrac, false, rndRes, chFmt, clpRng, filterIndex, false, useAltHpelIf );
+#endif
JVET_J0090_SET_CACHE_ENABLE( true );
}
diff --git a/source/Lib/CommonLib/InterpolationFilter.cpp b/source/Lib/CommonLib/InterpolationFilter.cpp
index 1b0a09738af87c7ae5ee3df93342434857f1d6fe..f7115296e953bb600ed0f780c7b885361b15d30e 100644
--- a/source/Lib/CommonLib/InterpolationFilter.cpp
+++ b/source/Lib/CommonLib/InterpolationFilter.cpp
@@ -94,6 +94,50 @@ const TFilterCoeff InterpolationFilter::m_lumaFilter[LUMA_INTERPOLATION_FILTER_S
{ 0, 1, -2, 4, 63, -3, 1, 0 }
};
+#if JVET_P0088_P0353_RPR_FILTERS
+// 1.5x
+const TFilterCoeff InterpolationFilter::m_lumaFilterRPR1[LUMA_INTERPOLATION_FILTER_SUB_SAMPLE_POSITIONS][NTAPS_LUMA] =
+{
+ { -1, -5, 17, 42, 17, -5, -1, 0 },
+ { 0, -5, 15, 41, 19, -5, -1, 0 },
+ { 0, -5, 13, 40, 21, -4, -1, 0 },
+ { 0, -5, 11, 39, 24, -4, -2, 1 },
+ { 0, -5, 9, 38, 26, -3, -2, 1 },
+ { 0, -5, 7, 38, 28, -2, -3, 1 },
+ { 1, -5, 5, 36, 30, -1, -3, 1 },
+ { 1, -4, 3, 35, 32, 0, -4, 1 },
+ { 1, -4, 2, 33, 33, 2, -4, 1 },
+ { 1, -4, 0, 32, 35, 3, -4, 1 },
+ { 1, -3, -1, 30, 36, 5, -5, 1 },
+ { 1, -3, -2, 28, 38, 7, -5, 0 },
+ { 1, -2, -3, 26, 38, 9, -5, 0 },
+ { 1, -2, -4, 24, 39, 11, -5, 0 },
+ { 0, -1, -4, 21, 40, 13, -5, 0 },
+ { 0, -1, -5, 19, 41, 15, -5, 0 }
+};
+
+// 2x
+const TFilterCoeff InterpolationFilter::m_lumaFilterRPR2[LUMA_INTERPOLATION_FILTER_SUB_SAMPLE_POSITIONS][NTAPS_LUMA] =
+{
+ { -4, 2, 20, 28, 20, 2, -4, 0 },
+ { -4, 0, 19, 29, 21, 5, -4, -2 },
+ { -4, -1, 18, 29, 22, 6, -4, -2 },
+ { -4, -1, 16, 29, 23, 7, -4, -2 },
+ { -4, -1, 16, 28, 24, 7, -4, -2 },
+ { -4, -1, 14, 28, 25, 8, -4, -2 },
+ { -3, -3, 14, 27, 26, 9, -3, -3 },
+ { -3, -1, 12, 28, 25, 10, -4, -3 },
+ { -3, -3, 11, 27, 27, 11, -3, -3 },
+ { -3, -4, 10, 25, 28, 12, -1, -3 },
+ { -3, -3, 9, 26, 27, 14, -3, -3 },
+ { -2, -4, 8, 25, 28, 14, -1, -4 },
+ { -2, -4, 7, 24, 28, 16, -1, -4 },
+ { -2, -4, 7, 23, 29, 16, -1, -4 },
+ { -2, -4, 6, 22, 29, 18, -1, -4 },
+ { -2, -4, 5, 21, 29, 19, 0, -4 }
+};
+#endif
+
const TFilterCoeff InterpolationFilter::m_lumaAltHpelIFilter[NTAPS_LUMA] = { 0, 3, 9, 20, 20, 9, 3, 0 };
const TFilterCoeff InterpolationFilter::m_chromaFilter[CHROMA_INTERPOLATION_FILTER_SUB_SAMPLE_POSITIONS][NTAPS_CHROMA] =
{
@@ -131,6 +175,82 @@ const TFilterCoeff InterpolationFilter::m_chromaFilter[CHROMA_INTERPOLATION_FILT
{ 0, 2, 63, -1 },
};
+#if JVET_P0088_P0353_RPR_FILTERS
+//1.5x
+const TFilterCoeff InterpolationFilter::m_chromaFilterRPR1[CHROMA_INTERPOLATION_FILTER_SUB_SAMPLE_POSITIONS][NTAPS_CHROMA] =
+{
+ { 12, 40, 12, 0 },
+ { 11, 40, 13, 0 },
+ { 10, 40, 15, -1 },
+ { 9, 40, 16, -1 },
+ { 8, 40, 17, -1 },
+ { 8, 39, 18, -1 },
+ { 7, 39, 19, -1 },
+ { 6, 38, 21, -1 },
+ { 5, 38, 22, -1 },
+ { 4, 38, 23, -1 },
+ { 4, 37, 24, -1 },
+ { 3, 36, 25, 0 },
+ { 3, 35, 26, 0 },
+ { 2, 34, 28, 0 },
+ { 2, 33, 29, 0 },
+ { 1, 33, 30, 0 },
+ { 1, 31, 31, 1 },
+ { 0, 30, 33, 1 },
+ { 0, 29, 33, 2 },
+ { 0, 28, 34, 2 },
+ { 0, 26, 35, 3 },
+ { 0, 25, 36, 3 },
+ { -1, 24, 37, 4 },
+ { -1, 23, 38, 4 },
+ { -1, 22, 38, 5 },
+ { -1, 21, 38, 6 },
+ { -1, 19, 39, 7 },
+ { -1, 18, 39, 8 },
+ { -1, 17, 40, 8 },
+ { -1, 16, 40, 9 },
+ { -1, 15, 40, 10 },
+ { 0, 13, 40, 11 },
+};
+
+//2x
+const TFilterCoeff InterpolationFilter::m_chromaFilterRPR2[CHROMA_INTERPOLATION_FILTER_SUB_SAMPLE_POSITIONS][NTAPS_CHROMA] =
+{
+ { 17, 30, 17, 0 },
+ { 17, 30, 18, -1 },
+ { 16, 30, 18, 0 },
+ { 16, 30, 18, 0 },
+ { 15, 30, 18, 1 },
+ { 14, 30, 18, 2 },
+ { 13, 29, 19, 3 },
+ { 13, 29, 19, 3 },
+ { 12, 29, 20, 3 },
+ { 11, 28, 21, 4 },
+ { 10, 28, 22, 4 },
+ { 10, 27, 22, 5 },
+ { 9, 27, 23, 5 },
+ { 9, 26, 24, 5 },
+ { 8, 26, 24, 6 },
+ { 7, 26, 25, 6 },
+ { 7, 25, 25, 7 },
+ { 6, 25, 26, 7 },
+ { 6, 24, 26, 8 },
+ { 5, 24, 26, 9 },
+ { 5, 23, 27, 9 },
+ { 5, 22, 27, 10 },
+ { 4, 22, 28, 10 },
+ { 4, 21, 28, 11 },
+ { 3, 20, 29, 12 },
+ { 3, 19, 29, 13 },
+ { 3, 19, 29, 13 },
+ { 2, 18, 30, 14 },
+ { 1, 18, 30, 15 },
+ { 0, 18, 30, 16 },
+ { 0, 18, 30, 16 },
+ { -1, 18, 30, 17 }
+};
+#endif
+
const TFilterCoeff InterpolationFilter::m_bilinearFilter[LUMA_INTERPOLATION_FILTER_SUB_SAMPLE_POSITIONS][NTAPS_BILINEAR] =
{
{ 64, 0, },
@@ -578,45 +698,69 @@ void InterpolationFilter::filterVer(const ClpRng& clpRng, Pel const *src, int sr
*/
void InterpolationFilter::filterHor(const ComponentID compID, Pel const *src, int srcStride, Pel *dst, int dstStride, int width, int height, int frac, bool isLast, const ChromaFormat fmt, const ClpRng& clpRng, int nFilterIdx, bool biMCForDMVR, bool useAltHpelIf)
{
+#if JVET_P0088_P0353_RPR_FILTERS
+ if( frac == 0 && nFilterIdx < 2 )
+#else
if( frac == 0 )
+#endif
{
- m_filterCopy[true][isLast](clpRng, src, srcStride, dst, dstStride, width, height, biMCForDMVR);
+ m_filterCopy[true][isLast]( clpRng, src, srcStride, dst, dstStride, width, height, biMCForDMVR );
}
else if( isLuma( compID ) )
{
CHECK( frac < 0 || frac >= LUMA_INTERPOLATION_FILTER_SUB_SAMPLE_POSITIONS, "Invalid fraction" );
if( nFilterIdx == 1 )
{
- filterHor<NTAPS_BILINEAR>(clpRng, src, srcStride, dst, dstStride, width, height, isLast, m_bilinearFilterPrec4[frac], biMCForDMVR);
+ filterHor<NTAPS_BILINEAR>( clpRng, src, srcStride, dst, dstStride, width, height, isLast, m_bilinearFilterPrec4[frac], biMCForDMVR );
}
else if( nFilterIdx == 2 )
{
filterHor<NTAPS_LUMA>( clpRng, src, srcStride, dst, dstStride, width, height, isLast, m_lumaFilter4x4[frac], biMCForDMVR );
}
+#if JVET_P0088_P0353_RPR_FILTERS
+ else if( nFilterIdx == 3 )
+ {
+ filterHor<NTAPS_LUMA>( clpRng, src, srcStride, dst, dstStride, width, height, isLast, m_lumaFilterRPR1[frac], biMCForDMVR );
+ }
+ else if( nFilterIdx == 4 )
+ {
+ filterHor<NTAPS_LUMA>( clpRng, src, srcStride, dst, dstStride, width, height, isLast, m_lumaFilterRPR2[frac], biMCForDMVR );
+ }
+#endif
+ else if( frac == 8 && useAltHpelIf )
+ {
+ filterHor<NTAPS_LUMA>( clpRng, src, srcStride, dst, dstStride, width, height, isLast, m_lumaAltHpelIFilter, biMCForDMVR );
+ }
+ else if( ( width == 4 && height == 4 ) || ( width == 4 && height == ( 4 + NTAPS_LUMA - 1 ) ) )
+ {
+ filterHor<NTAPS_LUMA>( clpRng, src, srcStride, dst, dstStride, width, height, isLast, m_lumaFilter4x4[frac], biMCForDMVR );
+ }
else
{
- if (frac == 8 && useAltHpelIf)
- {
- filterHor<NTAPS_LUMA>(clpRng, src, srcStride, dst, dstStride, width, height, isLast, m_lumaAltHpelIFilter, biMCForDMVR);
- }
- else
- {
- if ((width == 4 && height == 4) || (width == 4 && height == (4 + NTAPS_LUMA - 1)))
- {
- filterHor<NTAPS_LUMA>(clpRng, src, srcStride, dst, dstStride, width, height, isLast, m_lumaFilter4x4[frac], biMCForDMVR);
- }
- else
- {
- filterHor<NTAPS_LUMA>(clpRng, src, srcStride, dst, dstStride, width, height, isLast, m_lumaFilter[frac], biMCForDMVR);
- }
+ filterHor<NTAPS_LUMA>( clpRng, src, srcStride, dst, dstStride, width, height, isLast, m_lumaFilter[frac], biMCForDMVR );
+
}
}
- }
else
{
const uint32_t csx = getComponentScaleX( compID, fmt );
CHECK( frac < 0 || csx >= 2 || ( frac << ( 1 - csx ) ) >= CHROMA_INTERPOLATION_FILTER_SUB_SAMPLE_POSITIONS, "Invalid fraction" );
- filterHor<NTAPS_CHROMA>( clpRng, src, srcStride, dst, dstStride, width, height, isLast, m_chromaFilter[frac << ( 1 - csx )], biMCForDMVR);
+#if JVET_P0088_P0353_RPR_FILTERS
+ if( nFilterIdx == 3 )
+ {
+ filterHor<NTAPS_CHROMA>( clpRng, src, srcStride, dst, dstStride, width, height, isLast, m_chromaFilterRPR1[frac << ( 1 - csx )], biMCForDMVR );
+ }
+ else if( nFilterIdx == 4 )
+ {
+ filterHor<NTAPS_CHROMA>( clpRng, src, srcStride, dst, dstStride, width, height, isLast, m_chromaFilterRPR2[frac << ( 1 - csx )], biMCForDMVR );
+ }
+ else
+ {
+ filterHor<NTAPS_CHROMA>( clpRng, src, srcStride, dst, dstStride, width, height, isLast, m_chromaFilter[frac << ( 1 - csx )], biMCForDMVR );
+ }
+#else
+ filterHor<NTAPS_CHROMA>( clpRng, src, srcStride, dst, dstStride, width, height, isLast, m_chromaFilter[frac << ( 1 - csx )], biMCForDMVR );
+#endif
}
}
@@ -639,45 +783,68 @@ void InterpolationFilter::filterHor(const ComponentID compID, Pel const *src, in
*/
void InterpolationFilter::filterVer(const ComponentID compID, Pel const *src, int srcStride, Pel *dst, int dstStride, int width, int height, int frac, bool isFirst, bool isLast, const ChromaFormat fmt, const ClpRng& clpRng, int nFilterIdx, bool biMCForDMVR, bool useAltHpelIf)
{
+#if JVET_P0088_P0353_RPR_FILTERS
+ if( frac == 0 && nFilterIdx < 2 )
+#else
if( frac == 0 )
+#endif
{
- m_filterCopy[isFirst][isLast](clpRng, src, srcStride, dst, dstStride, width, height, biMCForDMVR);
+ m_filterCopy[isFirst][isLast]( clpRng, src, srcStride, dst, dstStride, width, height, biMCForDMVR );
}
else if( isLuma( compID ) )
{
CHECK( frac < 0 || frac >= LUMA_INTERPOLATION_FILTER_SUB_SAMPLE_POSITIONS, "Invalid fraction" );
- if (nFilterIdx == 1)
+ if( nFilterIdx == 1 )
{
- filterVer<NTAPS_BILINEAR>(clpRng, src, srcStride, dst, dstStride, width, height, isFirst, isLast, m_bilinearFilterPrec4[frac], biMCForDMVR);
+ filterVer<NTAPS_BILINEAR>( clpRng, src, srcStride, dst, dstStride, width, height, isFirst, isLast, m_bilinearFilterPrec4[frac], biMCForDMVR );
}
else if( nFilterIdx == 2 )
{
filterVer<NTAPS_LUMA>( clpRng, src, srcStride, dst, dstStride, width, height, isFirst, isLast, m_lumaFilter4x4[frac], biMCForDMVR );
}
+#if JVET_P0088_P0353_RPR_FILTERS
+ else if( nFilterIdx == 3 )
+ {
+ filterVer<NTAPS_LUMA>( clpRng, src, srcStride, dst, dstStride, width, height, isFirst, isLast, m_lumaFilterRPR1[frac], biMCForDMVR );
+ }
+ else if( nFilterIdx == 4 )
+ {
+ filterVer<NTAPS_LUMA>( clpRng, src, srcStride, dst, dstStride, width, height, isFirst, isLast, m_lumaFilterRPR2[frac], biMCForDMVR );
+ }
+#endif
+ else if( frac == 8 && useAltHpelIf )
+ {
+ filterVer<NTAPS_LUMA>( clpRng, src, srcStride, dst, dstStride, width, height, isFirst, isLast, m_lumaAltHpelIFilter, biMCForDMVR );
+ }
+ else if( width == 4 && height == 4 )
+ {
+ filterVer<NTAPS_LUMA>( clpRng, src, srcStride, dst, dstStride, width, height, isFirst, isLast, m_lumaFilter4x4[frac], biMCForDMVR );
+ }
else
{
- if (frac == 8 && useAltHpelIf)
- {
- filterVer<NTAPS_LUMA>(clpRng, src, srcStride, dst, dstStride, width, height, isFirst, isLast, m_lumaAltHpelIFilter, biMCForDMVR);
- }
- else
- {
- if (width == 4 && height == 4)
- {
- filterVer<NTAPS_LUMA>(clpRng, src, srcStride, dst, dstStride, width, height, isFirst, isLast, m_lumaFilter4x4[frac], biMCForDMVR);
- }
- else
- {
- filterVer<NTAPS_LUMA>(clpRng, src, srcStride, dst, dstStride, width, height, isFirst, isLast, m_lumaFilter[frac], biMCForDMVR);
- }
+ filterVer<NTAPS_LUMA>( clpRng, src, srcStride, dst, dstStride, width, height, isFirst, isLast, m_lumaFilter[frac], biMCForDMVR );
}
}
- }
else
{
const uint32_t csy = getComponentScaleY( compID, fmt );
CHECK( frac < 0 || csy >= 2 || ( frac << ( 1 - csy ) ) >= CHROMA_INTERPOLATION_FILTER_SUB_SAMPLE_POSITIONS, "Invalid fraction" );
- filterVer<NTAPS_CHROMA>(clpRng, src, srcStride, dst, dstStride, width, height, isFirst, isLast, m_chromaFilter[frac << (1 - csy)], biMCForDMVR);
+#if JVET_P0088_P0353_RPR_FILTERS
+ if( nFilterIdx == 3 )
+ {
+ filterVer<NTAPS_CHROMA>( clpRng, src, srcStride, dst, dstStride, width, height, isFirst, isLast, m_chromaFilterRPR1[frac << ( 1 - csy )], biMCForDMVR );
+ }
+ else if( nFilterIdx == 4 )
+ {
+ filterVer<NTAPS_CHROMA>( clpRng, src, srcStride, dst, dstStride, width, height, isFirst, isLast, m_chromaFilterRPR2[frac << ( 1 - csy )], biMCForDMVR );
+ }
+ else
+ {
+ filterVer<NTAPS_CHROMA>( clpRng, src, srcStride, dst, dstStride, width, height, isFirst, isLast, m_chromaFilter[frac << ( 1 - csy )], biMCForDMVR );
+ }
+#else
+ filterVer<NTAPS_CHROMA>( clpRng, src, srcStride, dst, dstStride, width, height, isFirst, isLast, m_chromaFilter[frac << ( 1 - csy )], biMCForDMVR );
+#endif
}
}
diff --git a/source/Lib/CommonLib/InterpolationFilter.h b/source/Lib/CommonLib/InterpolationFilter.h
index 14f49ec4d994f536459216ec3aa0c974fa35941f..f58d198ed78adcc652d38fe8e0fccacb4aaa4cd9 100644
--- a/source/Lib/CommonLib/InterpolationFilter.h
+++ b/source/Lib/CommonLib/InterpolationFilter.h
@@ -59,6 +59,12 @@ class InterpolationFilter
public:
static const TFilterCoeff m_lumaFilter[LUMA_INTERPOLATION_FILTER_SUB_SAMPLE_POSITIONS][NTAPS_LUMA]; ///< Luma filter taps
static const TFilterCoeff m_chromaFilter[CHROMA_INTERPOLATION_FILTER_SUB_SAMPLE_POSITIONS][NTAPS_CHROMA]; ///< Chroma filter taps
+#if JVET_P0088_P0353_RPR_FILTERS
+ static const TFilterCoeff m_lumaFilterRPR1[LUMA_INTERPOLATION_FILTER_SUB_SAMPLE_POSITIONS][NTAPS_LUMA]; ///< Luma filter taps 1.5x
+ static const TFilterCoeff m_lumaFilterRPR2[LUMA_INTERPOLATION_FILTER_SUB_SAMPLE_POSITIONS][NTAPS_LUMA]; ///< Luma filter taps 2x
+ static const TFilterCoeff m_chromaFilterRPR1[CHROMA_INTERPOLATION_FILTER_SUB_SAMPLE_POSITIONS][NTAPS_CHROMA]; ///< Chroma filter taps 1.5x
+ static const TFilterCoeff m_chromaFilterRPR2[CHROMA_INTERPOLATION_FILTER_SUB_SAMPLE_POSITIONS][NTAPS_CHROMA]; ///< Chroma filter taps 2x
+#endif
private:
static const TFilterCoeff m_lumaAltHpelIFilter[NTAPS_LUMA]; ///< Luma filter taps
static const TFilterCoeff m_bilinearFilter[LUMA_INTERPOLATION_FILTER_SUB_SAMPLE_POSITIONS][NTAPS_BILINEAR]; ///< bilinear filter taps
diff --git a/source/Lib/CommonLib/TypeDef.h b/source/Lib/CommonLib/TypeDef.h
index ed99654d7260a2795a252be10eb38a180204de2f..950804f5109275334f8f92e6e9444c69cc958489 100644
--- a/source/Lib/CommonLib/TypeDef.h
+++ b/source/Lib/CommonLib/TypeDef.h
@@ -106,6 +106,8 @@
#define JVET_O0145_ENTRYPOINT_SIGNALLING 0 // JVET-O0145: Not signalling num_entry_point_offsets but derive it at decoder
+#define JVET_P0088_P0353_RPR_FILTERS 1 // JVET-P0088 and JVET-P0353 Filters to use for downsampling in RPR
+
#define JVET_O0625_ALF_PADDING 1 // JVET-O0625/O0654/O0662: Unified padding method in ALF
#if !JVET_P0400_REMOVE_SHARED_MERGE_LIST