[FFmpeg-soc] [soc]: r4993 - amr/amrnbdec.c

[cmcq]

Author: cmcq
Date: Sat Aug  8 23:01:30 2009
New Revision: 4993

Log:
Distributive law optimizations

Modified:
   amr/amrnbdec.c

Modified: amr/amrnbdec.c
==============================================================================
--- amr/amrnbdec.c	Sat Aug  8 22:56:03 2009	(r4992)
+++ amr/amrnbdec.c	Sat Aug  8 23:01:30 2009	(r4993)
@@ -362,14 +362,14 @@ static void decode_pitch_lag(int *lag_in
         (subframe == 2 && mode != MODE_475 && mode != MODE_515)) {
         if (mode == MODE_122) {
             if (pitch_index < 463) {
-                *lag_int  = ((pitch_index + 5) * 10923 >> 16) + 17;
+                *lag_int  = (pitch_index + 117) * 10923 >> 16;
                 *lag_frac = pitch_index - *lag_int * 6 + 105;
             } else {
                 *lag_int  = pitch_index - 368;
                 *lag_frac = 0;
             }
         } else if (pitch_index < 197) {
-            *lag_int  = ((pitch_index + 2) * 10923 >> 15) + 19;
+            *lag_int  = (pitch_index + 59) * 10923 >> 15;
             *lag_frac = pitch_index - *lag_int * 3 + 58;
         } else {
             *lag_int  = pitch_index - 112;