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alsdec: only adapt order for positive max_order 

For max_order = 0 the clipping range is invalid. (amin = 2, amax = 1)

CC: libav-stable@libav.org
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
This commit is contained in:
Andreas Cadhalpun 2015-04-22 16:03:41 +02:00 committed by Anton Khirnov
parent 94bb1ce882
commit 60f1cc4a1f
1 changed files with 1 additions and 1 deletions
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libavcodec/alsdec.c
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@ -663,7 +663,7 @@ static int read_var_block_data(ALSDecContext *ctx, ALSBlockData *bd)
if (!sconf->rlslms) { if (!sconf->rlslms) {
if (sconf->adapt_order) { if (sconf->adapt_order && sconf->max_order) {
int opt_order_length = av_ceil_log2(av_clip((bd->block_length >> 3) - 1, int opt_order_length = av_ceil_log2(av_clip((bd->block_length >> 3) - 1,
2, sconf->max_order + 1)); 2, sconf->max_order + 1));
*bd->opt_order = get_bits(gb, opt_order_length); *bd->opt_order = get_bits(gb, opt_order_length);