[FFmpeg-soc] [soc]: r4122 - amr/amrnbfloatdec.c

[kmalaussene]

Author: kmalaussene
Date: Sun Feb 22 20:54:41 2009
New Revision: 4122

Log:
Fix decoding of pitch lag for subframe 2 & 4 in MODE_795.

Modified:
   amr/amrnbfloatdec.c

Modified: amr/amrnbfloatdec.c
==============================================================================
--- amr/amrnbfloatdec.c	Sun Feb 22 17:42:51 2009	(r4121)
+++ amr/amrnbfloatdec.c	Sun Feb 22 20:54:41 2009	(r4122)
@@ -426,7 +426,11 @@ static void decode_pitch_lag(int *lag_in
             // 10923>>15 is approximately 1/3
             *lag_int  = ( ((pitch_index + 2)*10923)>>15 ) - 1;
             *lag_frac = pitch_index - *lag_int * 3 - 2;
+            if(mode == MODE_795) {
+                *lag_int += av_clip(prev_lag_int - 10, PITCH_LAG_MIN, PITCH_LAG_MAX - 19);
+            }else {
             *lag_int += av_clip(prev_lag_int - 5, PITCH_LAG_MIN, PITCH_LAG_MAX - 9);
+            }
         }
     }
 }