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authorLuca Barbato <lu_zero@gentoo.org>2013-05-19 18:59:13 +0200
committerLuca Barbato <lu_zero@gentoo.org>2013-05-19 22:56:37 +0200
commitddf1b4a2f8a680126eb611428e4f47e6e5b8c6c0 (patch)
tree37cac966ce40236420e0180c49ab2d0401000bf7
parent36f10380043c8b8c5cbf8c1add8695089cdaa341 (diff)
downloadffmpeg-ddf1b4a2f8a680126eb611428e4f47e6e5b8c6c0.tar.gz
vorbis: simplify the inner loop in setup_classifs
-rw-r--r--libavcodec/vorbisdec.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/libavcodec/vorbisdec.c b/libavcodec/vorbisdec.c
index 718f7607a2..caf36eb3f2 100644
--- a/libavcodec/vorbisdec.c
+++ b/libavcodec/vorbisdec.c
@@ -1321,11 +1321,11 @@ static av_always_inline int setup_classifs(vorbis_context *vc,
assert(vr->classifications > 1 && temp <= 65536); //needed for inverse[]
- for (i = 0; i < c_p_c; ++i) {
+ for (i = partition_count + c_p_c - 1; i >= partition_count; i--) {
temp2 = (((uint64_t)temp) * inverse_class) >> 32;
- if (partition_count + c_p_c - 1 - i < vr->ptns_to_read)
- vr->classifs[p + partition_count + c_p_c - 1 - i] =
- temp - temp2 * vr->classifications;
+
+ if (i < vr->ptns_to_read)
+ vr->classifs[p + i] = temp - temp2 * vr->classifications;
temp = temp2;
}
}