avcodec/flacenc: Remove always-true check

[ffmpeg] / libavcodec / unary.h

diff --git a/libavcodec/unary.h b/libavcodec/unary.h
index 908dc9350786e56acc4166ec967ad7af20c34447..d57f9f70c5db545a5676f757fdeb18e25318aa79 100644 (file)
--- a/libavcodec/unary.h
+++ b/libavcodec/unary.h
@@ -28,7 +28,20 @@
  * @param gb GetBitContext
  * @param[in] stop The bitstop value (unary code of 1's or 0's)
  * @param[in] len Maximum length
- * @return Unary length/index
+ * @return unary 0 based code index. This is also the length in bits of the
+ * code excluding the stop bit.
+ * (in case len=1)
+ * 1            0
+ * 0            1
+ * (in case len=2)
+ * 1            0
+ * 01           1
+ * 00           2
+ * (in case len=3)
+ * 1            0
+ * 01           1
+ * 001          2
+ * 000          3
  */
 static inline int get_unary(GetBitContext *gb, int stop, int len)
 {