[FFmpeg-cvslog] r18462 - trunk/libavformat/wc3movie.c
reimar
subversion
Sun Apr 12 10:49:21 CEST 2009
Author: reimar
Date: Sun Apr 12 10:49:20 2009
New Revision: 18462
Log:
Slightly improve/correct description of wc3_pal_lookup
Modified:
trunk/libavformat/wc3movie.c
Modified: trunk/libavformat/wc3movie.c
==============================================================================
--- trunk/libavformat/wc3movie.c Sun Apr 12 10:35:26 2009 (r18461)
+++ trunk/libavformat/wc3movie.c Sun Apr 12 10:49:20 2009 (r18462)
@@ -76,9 +76,9 @@ typedef struct Wc3DemuxContext {
* palette lookup table that does gamma correction
*
* can be calculated by this formula:
- * for i between 0 and 252 inclusive:
- * wc3_pal_lookup[i] = pow(i / 256.0, 0.8) * 256;
- * values 253, 254 and 255 are all 0xFD
+ * for i between 0 and 251 inclusive:
+ * wc3_pal_lookup[i] = round(pow(i / 256.0, 0.8) * 256);
+ * values 252, 253, 254 and 255 are all 0xFD
* calculating this at runtime should not cause any
* rounding issues, the maximum difference between
* the table values and the calculated doubles is
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