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-rw-r--r--thirdparty/libtheora/decode.c8
-rw-r--r--thirdparty/libtheora/patches/theora.git-0ae66d565e6bead8604d312bc1a4e9dccf245c88.patch38
2 files changed, 42 insertions, 4 deletions
diff --git a/thirdparty/libtheora/decode.c b/thirdparty/libtheora/decode.c
index 7be66463d8..bde967b794 100644
--- a/thirdparty/libtheora/decode.c
+++ b/thirdparty/libtheora/decode.c
@@ -397,10 +397,10 @@ static int oc_dec_init(oc_dec_ctx *_dec,const th_info *_info,
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);
}
diff --git a/thirdparty/libtheora/patches/theora.git-0ae66d565e6bead8604d312bc1a4e9dccf245c88.patch b/thirdparty/libtheora/patches/theora.git-0ae66d565e6bead8604d312bc1a4e9dccf245c88.patch
new file mode 100644
index 0000000000..1b9c8e20be
--- /dev/null
+++ b/thirdparty/libtheora/patches/theora.git-0ae66d565e6bead8604d312bc1a4e9dccf245c88.patch
@@ -0,0 +1,38 @@
+From 0ae66d565e6bead8604d312bc1a4e9dccf245c88 Mon Sep 17 00:00:00 2001
+From: Tim Terriberry <tterribe@xiph.org>
+Date: Tue, 8 May 2012 02:51:57 +0000
+Subject: [PATCH] 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
+---
+ decode.c | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/decode.c b/decode.c
+index b803505..9f2516a 100644
+--- a/decode.c
++++ b/decode.c
+@@ -400,10 +400,10 @@ static int oc_dec_init(oc_dec_ctx *_dec,const th_info *_info,
+ 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);
+ }
+--
+2.11.0
+