Changeset 628 for pjproject/trunk/pjmedia/src/pjmedia-codec/speex/cb_search_bfin.h

Timestamp:

Jul 26, 2006 5:04:54 PM (18 years ago)

Author:

bennylp

Message:

• Bring speex codec up to date with their SVN trunk
• Speex codec should work in FIXED_POINT mode when PJ_HAS_FLOATING_POINT is set to zero.
• ulaw2linear will return zero if zero is given (this would make the VAD works better, and it also fixed click noise when call is established/hangup).

File:

• pjproject/trunk/pjmedia/src/pjmedia-codec/speex/cb_search_bfin.h (modified) (5 diffs)

pjproject/trunk/pjmedia/src/pjmedia-codec/speex/cb_search_bfin.h

@@ -62 +62 @@
             "LOOP_END inner%=;\n\t"
             "R0 = A0;\n\t"
-            "R0 >>>= 11;\n\t"
+            "R0 >>>= 13;\n\t"
             "A1 += R0.L*R0.L (IS);\n\t"
             "W[P3++] = R0;\n\t"
@@ -73 +73 @@
          :
       : "m" (subvect_size), "m" (shape_cb), "m" (r), "m" (resp), "m" (E)
-      : "A0", "P0", "P1", "P2", "P3", "P4", "R0", "R1", "R2", "I0", "I1", "L0", "L1", "A0", "A1", "memory"
+      : "A0", "P0", "P1", "P2", "P3", "P4", "R0", "R1", "R2", "I0", "I1", "L0", 
+        "L1", "A0", "A1", "memory", "LC0", "LC1"
       );
       shape_cb += subvect_size;
@@ -84 +85 @@
 static inline void target_update(spx_word16_t *t, spx_word16_t g, spx_word16_t *r, int len)
 {
+   if (!len)
+      return;
    __asm__ __volatile__
          (
@@ -90 +93 @@
          "L0 = 0;\n\t"
          "L1 = 0;\n\t"
+         "R2 = 4096;\n\t"
          "LOOP tupdate%= LC0 = %3;\n\t"
          "LOOP_BEGIN tupdate%=;\n\t"
             "R0.L = W[I0] || R1.L = W[I1++];\n\t"
             "R1 = (A1 = R1.L*%2.L) (IS);\n\t"
-            "R1 >>>= 11;\n\t"
+            "R1 = R1 + R2;\n\t"
+            "R1 >>>= 13;\n\t"
             "R0.L = R0.L - R1.L;\n\t"
             "W[I0++] = R0.L;\n\t"
@@ -100 +105 @@
    :
    : "a" (t), "a" (r), "d" (g), "a" (len)
-   : "R0", "R1", "A1", "I0", "I1", "L0", "L1"
+   : "R0", "R1", "R2", "A1", "I0", "I1", "L0", "L1"
          );
 }
-