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-rw-r--r--libavcodec/amrnbdata.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/amrnbdata.h b/libavcodec/amrnbdata.h
index 2745d33ffb..6e555bfdb4 100644
--- a/libavcodec/amrnbdata.h
+++ b/libavcodec/amrnbdata.h
@@ -71,7 +71,7 @@ typedef struct {
} AMRNBFrame;
/** The index of a frame parameter */
-#define AMR_BIT(field) (offsetof(AMRNBFrame, field) >> 1)
+#define AMR_BIT(field) (offsetof(AMRNBFrame, field))
/** The index of a subframe-specific parameter */
#define AMR_OF(frame_num, variable) AMR_BIT(subframe[frame_num].variable)