[FFmpeg-soc] [soc]: r5410 - als/alsdec.c

[thilo.borgmann]

Author: thilo.borgmann
Date: Wed Oct 14 02:45:13 2009
New Revision: 5410

Log:
Changed long-term prediction to skip sums of zero.

Modified:
   als/alsdec.c

Modified: als/alsdec.c
==============================================================================
--- als/alsdec.c	Wed Oct 14 02:41:47 2009	(r5409)
+++ als/alsdec.c	Wed Oct 14 02:45:13 2009	(r5410)
@@ -619,7 +619,7 @@ static int read_var_block(ALSDecContext 
     if (use_ltp) {
         int ltp_smp;
 
-        for (ltp_smp = 0; ltp_smp < block_length; ltp_smp++) {
+        for (ltp_smp = FFMAX(ltp_lag - 2, 0); ltp_smp < block_length; ltp_smp++) {
             int center = ltp_smp - ltp_lag;
             int begin  = FFMAX(0, center - 2);
             int end    = center + 3;