8c67b43ba1
Patch from https://git.xiph.org/?p=theora.git;a=commit;h=0ae66d565e6bead8604d312bc1a4e9dccf245c88 Fixes #25221.
39 lines
1.3 KiB
Diff
39 lines
1.3 KiB
Diff
From 0ae66d565e6bead8604d312bc1a4e9dccf245c88 Mon Sep 17 00:00:00 2001
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From: Tim Terriberry <tterribe@xiph.org>
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Date: Tue, 8 May 2012 02:51:57 +0000
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Subject: [PATCH] Fix pp_sharp_mod calculation.
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This was broken when the dequant_tables indexing changed in commit
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r16102, but it only affected post-processing quality, so we never
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noticed.
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With gcc 4.8.0, this can now trigger a segfault during decoder
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initialization.
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svn path=/trunk/theora/; revision=18268
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---
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decode.c | 8 ++++----
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1 file changed, 4 insertions(+), 4 deletions(-)
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diff --git a/decode.c b/decode.c
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index b803505..9f2516a 100644
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--- a/decode.c
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+++ b/decode.c
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@@ -400,10 +400,10 @@ static int oc_dec_init(oc_dec_ctx *_dec,const th_info *_info,
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int qsum;
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qsum=0;
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for(qti=0;qti<2;qti++)for(pli=0;pli<3;pli++){
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- qsum+=_dec->state.dequant_tables[qti][pli][qi][12]+
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- _dec->state.dequant_tables[qti][pli][qi][17]+
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- _dec->state.dequant_tables[qti][pli][qi][18]+
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- _dec->state.dequant_tables[qti][pli][qi][24]<<(pli==0);
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+ qsum+=_dec->state.dequant_tables[qi][pli][qti][12]+
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+ _dec->state.dequant_tables[qi][pli][qti][17]+
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+ _dec->state.dequant_tables[qi][pli][qti][18]+
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+ _dec->state.dequant_tables[qi][pli][qti][24]<<(pli==0);
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}
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_dec->pp_sharp_mod[qi]=-(qsum>>11);
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}
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--
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2.11.0
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