[FFmpeg-cvslog] r20897 - in trunk/libavcodec: acelp_vectors.c acelp_vectors.h

[vitor]

Author: vitor
Date: Sat Dec 19 15:05:31 2009
New Revision: 20897

Log:
Add tables used by both AMR-NB and SIPR

Modified:
   trunk/libavcodec/acelp_vectors.c
   trunk/libavcodec/acelp_vectors.h

Modified: trunk/libavcodec/acelp_vectors.c
==============================================================================
--- trunk/libavcodec/acelp_vectors.c	Sat Dec 19 08:34:11 2009	(r20896)
+++ trunk/libavcodec/acelp_vectors.c	Sat Dec 19 15:05:31 2009	(r20897)
@@ -103,6 +103,35 @@ static uint8_t gray_decode[32] =
 };
 #endif
 
+const float ff_pow_0_7[10] = {
+    0.700000, 0.490000, 0.343000, 0.240100, 0.168070,
+    0.117649, 0.082354, 0.057648, 0.040354, 0.028248
+};
+
+const float ff_pow_0_75[10] = {
+    0.750000, 0.562500, 0.421875, 0.316406, 0.237305,
+    0.177979, 0.133484, 0.100113, 0.075085, 0.056314
+};
+
+const float ff_pow_0_55[10] = {
+    0.550000, 0.302500, 0.166375, 0.091506, 0.050328,
+    0.027681, 0.015224, 0.008373, 0.004605, 0.002533
+};
+
+const float ff_b60_sinc[61] = {
+ 0.898529  ,  0.865051  ,  0.769257  ,  0.624054  ,  0.448639  ,  0.265289   ,
+ 0.0959167 , -0.0412598 , -0.134338  , -0.178986  , -0.178528  , -0.142609   ,
+-0.0849304 , -0.0205078 ,  0.0369568 ,  0.0773926 ,  0.0955200 ,  0.0912781  ,
+ 0.0689392 ,  0.0357056 ,  0.        , -0.0305481 , -0.0504150 , -0.0570068  ,
+-0.0508423 , -0.0350037 , -0.0141602 ,  0.00665283,  0.0230713 ,  0.0323486  ,
+ 0.0335388 ,  0.0275879 ,  0.0167847 ,  0.00411987, -0.00747681, -0.0156860  ,
+-0.0193481 , -0.0183716 , -0.0137634 , -0.00704956,  0.        ,  0.00582886 ,
+ 0.00939941,  0.0103760 ,  0.00903320,  0.00604248,  0.00238037, -0.00109863 ,
+-0.00366211, -0.00497437, -0.00503540, -0.00402832, -0.00241089, -0.000579834,
+ 0.00103760,  0.00222778,  0.00277710,  0.00271606,  0.00213623,  0.00115967 ,
+ 0.
+};
+
 void ff_acelp_fc_pulse_per_track(
         int16_t* fc_v,
         const uint8_t *tab1,

Modified: trunk/libavcodec/acelp_vectors.h
==============================================================================
--- trunk/libavcodec/acelp_vectors.h	Sat Dec 19 08:34:11 2009	(r20896)
+++ trunk/libavcodec/acelp_vectors.h	Sat Dec 19 15:05:31 2009	(r20897)
@@ -112,6 +112,26 @@ extern const uint8_t ff_fc_2pulses_9bits
 extern const uint8_t ff_fc_2pulses_9bits_track2_gray[32];
 
 /**
+ * b60 hamming windowed sinc function coefficients
+ */
+extern const float ff_b60_sinc[61];
+
+/**
+ * Table of pow(0.7,n)
+ */
+extern const float ff_pow_0_7[10];
+
+/**
+ * Table of pow(0.75,n)
+ */
+extern const float ff_pow_0_75[10];
+
+/**
+ * Table of pow(0.55,n)
+ */
+extern const float ff_pow_0_55[10];
+
+/**
  * Decode fixed-codebook vector (3.8 and D.5.8 of G.729, 5.7.1 of AMR).
  * @param fc_v [out] decoded fixed codebook vector (2.13)
  * @param tab1 table used for first pulse_count pulses