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alac: conditionally set sign_modifier to 1

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It is already unconditionally set to 0 prior to this, so we can modify it
only when needed.
This commit is contained in:
Justin Ruggles 2012-07-09 10:57:42 -04:00
parent 7e6593e977
commit 5177413d20
1 changed files with 2 additions and 4 deletions
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6
libavcodec/alac.c
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@ -133,8 +133,6 @@ static void bastardized_rice_decompress(ALACContext *alac,
int k; int k;
unsigned int block_size; unsigned int block_size;
sign_modifier = 1;
k = 7 - av_log2(history) + ((history + 16) >> 6 /* / 64 */); k = 7 - av_log2(history) + ((history + 16) >> 6 /* / 64 */);
k = FFMIN(k, alac->rice_limit); k = FFMIN(k, alac->rice_limit);
@ -149,8 +147,8 @@ static void bastardized_rice_decompress(ALACContext *alac,
output_count += block_size; output_count += block_size;
} }
if (block_size > 0xffff) if (block_size <= 0xffff)
sign_modifier = 0; sign_modifier = 1;
history = 0; history = 0;
} }