Make channel layout masks unsigned

It makes more sense for a bit mask to use an unsigned type.
The change should be source and binary compatible on all
supported systems, hence micro version bump.

Fixes a few invalid shifts.

Signed-off-by: Mans Rullgard <mans@mansr.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/libavcodec/ac3.h b/libavcodec/ac3.h
index 9adad93db8..304c86c181 100644
--- a/libavcodec/ac3.h
+++ b/libavcodec/ac3.h
@@ -118,7 +118,7 @@ typedef struct {
     uint32_t bit_rate;
     uint8_t channels;
     uint16_t frame_size;
-    int64_t channel_layout;
+    uint64_t channel_layout;
     /** @} */
 } AC3HeaderInfo;