From 89411fbdfff31ba4f07ce86b8f1528374a774c74 Mon Sep 17 00:00:00 2001
From: Remy Foray <remy.foray@allegrodvt.com>
Date: Mon, 8 Jun 2020 10:22:48 +0200
Subject: [PATCH] Fix delta_chroma_offset_lx compliance check
---
source/Lib/DecoderLib/VLCReader.cpp | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/source/Lib/DecoderLib/VLCReader.cpp b/source/Lib/DecoderLib/VLCReader.cpp
index ddbdca7d0..af7ab2c43 100644
--- a/source/Lib/DecoderLib/VLCReader.cpp
+++ b/source/Lib/DecoderLib/VLCReader.cpp
@@ -5264,7 +5264,7 @@ void HLSyntaxReader::parsePredWeightTable( Slice* pcSlice, const SPS *sps )
int iDeltaChroma;
READ_SVLC( iDeltaChroma, iNumRef==0?"delta_chroma_offset_l0[i]":"delta_chroma_offset_l1[i]" );
CHECK( iDeltaChroma < -4*range, "delta_chroma_offset_lx shall be in the range of -4 * 128 to 4 * 127" );
- CHECK( iDeltaChroma >= 4*range, "delta_chroma_offset_lx shall be in the range of -4 * 128 to 4 * 127" );
+ CHECK( iDeltaChroma > 4*(range-1), "delta_chroma_offset_lx shall be in the range of -4 * 128 to 4 * 127" );
int pred = ( range - ( ( range*wp[j].iWeight)>>(wp[j].uiLog2WeightDenom) ) );
wp[j].iOffset = Clip3(-range, range-1, (iDeltaChroma + pred) );
}
--
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