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commit 0ae66d565e6bead8604d312bc1a4e9dccf245c88
Author: Tim Terriberry <tterribe@xiph.org>
Date: Tue May 8 02:51:57 2012 +0000
Fix pp_sharp_mod calculation.
This was broken when the dequant_tables indexing changed in commit
r16102, but it only affected post-processing quality, so we never
noticed.
With gcc 4.8.0, this can now trigger a segfault during decoder
initialization.
svn path=/trunk/theora/; revision=18268
Index: libtheora-salsa/lib/decode.c
===================================================================
--- libtheora-salsa.orig/lib/decode.c 2025-03-16 05:39:47.754277765 +0100
+++ libtheora-salsa/lib/decode.c 2025-03-16 05:39:51.000000000 +0100
@@ -397,10 +397,10 @@
int qsum;
qsum=0;
for(qti=0;qti<2;qti++)for(pli=0;pli<3;pli++){
- qsum+=_dec->state.dequant_tables[qti][pli][qi][12]+
- _dec->state.dequant_tables[qti][pli][qi][17]+
- _dec->state.dequant_tables[qti][pli][qi][18]+
- _dec->state.dequant_tables[qti][pli][qi][24]<<(pli==0);
+ qsum+=_dec->state.dequant_tables[qi][pli][qti][12]+
+ _dec->state.dequant_tables[qi][pli][qti][17]+
+ _dec->state.dequant_tables[qi][pli][qti][18]+
+ _dec->state.dequant_tables[qi][pli][qti][24]<<(pli==0);
}
_dec->pp_sharp_mod[qi]=-(qsum>>11);
}
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