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authorMichael Niedermayer <michaelni@gmx.at>2012-09-15 10:09:55 +0200
committerMichael Niedermayer <michaelni@gmx.at>2012-09-15 10:35:26 +0200
commitf1ca40ee00402102046fc7e59606651930436b0e (patch)
treed64b21cfabf26f3a2b1a3208745b6cc7e7081a26 /libavcodec/vorbisdec.c
parentab94d1be7a32f6d3714935ad5ae551a753024ae6 (diff)
parent1c56cdad337a39951f26b17bdc8068d75a19ffca (diff)
Merge remote-tracking branch 'qatar/master'
* qatar/master: riff: Add SVQ3 fourcc fate: ac3: add 4.0 and downmix tests configure: x86: improve ebp availability check vorbisdec: ensure FASTDIV denominator is never 1 avformat: refactor avformat_close_input avformat: simplify avformat_close_input Conflicts: configure libavcodec/vorbisdec.c libavformat/utils.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/vorbisdec.c')
-rw-r--r--libavcodec/vorbisdec.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/libavcodec/vorbisdec.c b/libavcodec/vorbisdec.c
index d0709331e5..8ce0fc7c83 100644
--- a/libavcodec/vorbisdec.c
+++ b/libavcodec/vorbisdec.c
@@ -1356,8 +1356,7 @@ static av_always_inline int vorbis_residue_decode_internal(vorbis_context *vc,
if (vqbook >= 0 && vc->codebooks[vqbook].codevectors) {
unsigned coffs;
unsigned dim = vc->codebooks[vqbook].dimensions;
- unsigned step = dim == 1 ? vr->partition_size
- : FASTDIV(vr->partition_size, dim);
+ unsigned step = FASTDIV(vr->partition_size << 1, dim << 1);
vorbis_codebook codebook = vc->codebooks[vqbook];
if (vr_type == 0) {
@@ -1411,7 +1410,7 @@ static av_always_inline int vorbis_residue_decode_internal(vorbis_context *vc,
}
} else if (vr_type == 2) {
- unsigned voffs_div = ch == 1 ? voffset : FASTDIV(voffset, ch);
+ unsigned voffs_div = FASTDIV(voffset << 1, ch <<1);
unsigned voffs_mod = voffset - voffs_div * ch;
for (k = 0; k < step; ++k) {