Changeset 2616 for pjproject/trunk/third_party/g7221/decode/coef2sam.c

Timestamp:

Apr 18, 2009 2:29:28 PM (15 years ago)

Author:

bennylp

Message:

More ticket #774: optimization for siren7/siren14 codecs

File:

• pjproject/trunk/third_party/g7221/decode/coef2sam.c (modified) (5 diffs)

pjproject/trunk/third_party/g7221/decode/coef2sam.c

@@ -89 +89 @@
     
 
-    half_dct_size = shr(dct_length,1);
+    half_dct_size = shr_nocheck(dct_length,1);
     
     /* Perform a Type IV (inverse) DCT on the coefficients */
@@ -99 +99 @@
         for(index=0;index<dct_length;index++)
         {
-            new_samples[index] = shr(new_samples[index],mag_shift);
+            new_samples[index] = shr_nocheck(new_samples[index],mag_shift);
             move16();
         }
@@ -111 +111 @@
             for(index=0;index<dct_length;index++)
             {
-                new_samples[index] = shl(new_samples[index],mag_shift);
+                new_samples[index] = shl_nocheck(new_samples[index],mag_shift);
                 move16();
             }
@@ -148 +148 @@
         sum = L_mac(sum,*win_new++, *--new_ptr);
         sum = L_mac(sum,*--win_old, *old_ptr++);
-        *out_ptr++ = itu_round(L_shl(sum,2));
+        *out_ptr++ = itu_round(L_shl_nocheck(sum,2));
         move16();
 
@@ -161 +161 @@
         sum = L_mac(sum,*win_new++, *new_ptr++);
         sum = L_mac(sum,negate(*--win_old), *--old_ptr);
-        *out_ptr++ = itu_round(L_shl(sum,2));
+        *out_ptr++ = itu_round(L_shl_nocheck(sum,2));
         move16();
     }