From 0b699920f3c0b2e30969b38ce59226653f9d80ec Mon Sep 17 00:00:00 2001 From: Luca Barbato Date: Sun, 1 Nov 2015 14:46:17 +0100 Subject: [PATCH] lagarith: Correctly compute hash_shift All the values are unsigned. Bug-Id: 907 CC: libav-stable@libav.org Signed-off-by: Luca Barbato --- libavcodec/lagarithrac.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/lagarithrac.c b/libavcodec/lagarithrac.c index edfb18fb74..f9e4e5c928 100644 --- a/libavcodec/lagarithrac.c +++ b/libavcodec/lagarithrac.c @@ -45,7 +45,7 @@ void ff_lag_rac_init(lag_rac *l, GetBitContext *gb, int length) l->range = 0x80; l->low = *l->bytestream >> 1; - l->hash_shift = FFMAX(l->scale - 8, 0); + l->hash_shift = FFMAX(l->scale, 8) - 8; for (i = j = 0; i < 256; i++) { unsigned r = i << l->hash_shift;