From cbbd330abc95d31ec3e67c6811333db015f54c01 Mon Sep 17 00:00:00 2001
From: Paul B Mahol <onemda@gmail.com>
Date: Mon, 3 Jul 2017 11:48:13 +0200
Subject: [PATCH] avcodec/alsdec: fix some undefined shifts
Signed-off-by: Paul B Mahol <onemda@gmail.com>
---
libavcodec/alsdec.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/libavcodec/alsdec.c b/libavcodec/alsdec.c
index 960c55c653d..13bd52f297f 100644
--- a/libavcodec/alsdec.c
+++ b/libavcodec/alsdec.c
@@ -761,7 +761,7 @@ static int read_var_block_data(ALSDecContext *ctx, ALSBlockData *bd)
}
for (k = 2; k < opt_order; k++)
- quant_cof[k] = (quant_cof[k] << 14) + (add_base << 13);
+ quant_cof[k] = (quant_cof[k] * (1 << 14)) + (add_base << 13);
}
}
@@ -866,7 +866,7 @@ static int read_var_block_data(ALSDecContext *ctx, ALSBlockData *bd)
res >>= 1;
if (cur_k) {
- res <<= cur_k;
+ res *= 1 << cur_k;
res |= get_bits_long(gb, cur_k);
}
}
--
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