It does not need to be unsigned.
---
libavcodec/alac.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/libavcodec/alac.c b/libavcodec/alac.c
index 74da253..91c94d7 100644
--- a/libavcodec/alac.c
+++ b/libavcodec/alac.c
@@ -130,7 +130,7 @@ static void bastardized_rice_decompress(ALACContext *alac,
/* special case: there may be compressed blocks of 0 */
if ((history < 128) && (output_count+1 < output_size)) {
- unsigned int block_size;
+ int block_size;
k = 7 - av_log2(history) + ((history + 16) >> 6 /* / 64 */);
k = FFMIN(k, alac->rice_limit);
--
1.7.1
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