[FFmpeg-cvslog] r13434 - trunk/libavcodec/ra144.c

[vitor]

Author: vitor
Date: Mon May 26 20:21:09 2008
New Revision: 13434

Log:
Update comment

Modified:
   trunk/libavcodec/ra144.c

Modified: trunk/libavcodec/ra144.c
==============================================================================
--- trunk/libavcodec/ra144.c	(original)
+++ trunk/libavcodec/ra144.c	Mon May 26 20:21:09 2008
@@ -56,7 +56,10 @@ static int ra144_decode_init(AVCodecCont
     return 0;
 }
 
-/* lookup square roots in table */
+/**
+ * Evaluate sqrt(x << 24). x must fit in 20 bits. This value is evaluated in a
+ * odd way to make the output identical to the binary decoder.
+ */
 static int t_sqrt(unsigned int x)
 {
     int s = 0;