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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 f11e2f5d61..f5a541adae 100644
--- a/libavcodec/vorbisdec.c
+++ b/libavcodec/vorbisdec.c
@@ -1354,8 +1354,7 @@ 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) {
@@ -1409,7 +1408,7 @@ static av_always_inline int vorbis_residue_decode_internal(vorbis_context *vc,
}
} else if (vr_type == 2) {
- unsigned voffs_div = FASTDIV(voffset, ch);
+ unsigned voffs_div = FASTDIV(voffset << 1, ch <<1);
unsigned voffs_mod = voffset - voffs_div * ch;
for (k = 0; k < step; ++k) {