From 96d6da4e252b06dcfdc041e7df23e86161c33007 Mon Sep 17 00:00:00 2001 From: rihab kouki Date: Tue, 28 Jul 2020 11:24:49 +0100 Subject: Official ARM version: v5.6.0 --- docs/DSP/html/group__DCT4__IDCT4__Table.html | 462 +++------------------------ 1 file changed, 47 insertions(+), 415 deletions(-) (limited to 'docs/DSP/html/group__DCT4__IDCT4__Table.html') diff --git a/docs/DSP/html/group__DCT4__IDCT4__Table.html b/docs/DSP/html/group__DCT4__IDCT4__Table.html index 0625c2e..54db790 100644 --- a/docs/DSP/html/group__DCT4__IDCT4__Table.html +++ b/docs/DSP/html/group__DCT4__IDCT4__Table.html @@ -32,7 +32,7 @@ Logo
CMSIS-DSP -  Version 1.5.2 +  Version 1.7.0
CMSIS DSP Software Library
@@ -116,635 +116,267 @@ $(document).ready(function(){initNavTree('group__DCT4__IDCT4__Table.html','');}) - + + - - - - - - - + - + + + - + + + - + + + - - - - - - - - - - - - - - - - - + - - - - - - - + - + + + - + + + - + + +

Variables

static const float32_t Weights_128 [256]
const float32_t Weights_128 [256]
 Weights Table. More...
 
static const float32_t Weights_512 [1024]
 
static const float32_t Weights_2048 [4096]
 
static const float32_t Weights_8192 [16384]
 
static const float32_t cos_factors_128 [128]
const float32_t cos_factors_128 [128]
 
static const float32_t cos_factors_512 [512]
const float32_t Weights_512 [1024]
 
const float32_t cos_factors_512 [512]
 
static const float32_t cos_factors_2048 [2048]
const float32_t Weights_2048 [4096]
 
const float32_t cos_factors_2048 [2048]
 
static const float32_t cos_factors_8192 [8192]
const float32_t Weights_8192 [16384]
 
const float32_t cos_factors_8192 [8192]
 
static const q15_t ALIGN4 WeightsQ15_128 [256]
 
static const q15_t ALIGN4 WeightsQ15_512 [1024]
 
static const q15_t ALIGN4 WeightsQ15_2048 [4096]
 
static const q15_t ALIGN4 WeightsQ15_8192 [16384]
 
static const q15_t ALIGN4 cos_factorsQ15_128 [128]
 
static const q15_t ALIGN4 cos_factorsQ15_512 [512]
 
static const q15_t ALIGN4 cos_factorsQ15_2048 [2048]
 
static const q15_t ALIGN4 cos_factorsQ15_8192 [8192]
 
static const q31_t WeightsQ31_128 [256]
const q31_t WeightsQ31_128 [256]
 
static const q31_t WeightsQ31_512 [1024]
 
static const q31_t WeightsQ31_2048 [4096]
 
static const q31_t WeightsQ31_8192 [16384]
 
static const q31_t cos_factorsQ31_128 [128]
const q31_t cos_factorsQ31_128 [128]
 
static const q31_t cos_factorsQ31_512 [512]
const q31_t WeightsQ31_512 [1024]
 
const q31_t cos_factorsQ31_512 [512]
 
static const q31_t cos_factorsQ31_2048 [2048]
const q31_t WeightsQ31_2048 [4096]
 
const q31_t cos_factorsQ31_2048 [2048]
 
static const q31_t cos_factorsQ31_8192 [8192]
const q31_t WeightsQ31_8192 [16384]
 
const q31_t cos_factorsQ31_8192 [8192]
 

Description

+

end of RealFFT_Table group

Variable Documentation

- - - - - -
const float32_t cos_factors_128[128]
- 		-static
-
cosFactor tables are generated using the formula : 
cos_factors[n] = 2 * cos((2n+1)*pi/(4*N))
-
C command to generate the table
-
 for(i = 0; i< N; i++)
-{
-   cos_factors[i]= 2 * cos((2*i+1)*c/2);
-}
-
where N is the number of factors to generate and c is pi/(2*N)
- -

Referenced by arm_dct4_init_f32().

- - - - - -
const float32_t cos_factors_2048[2048]
- 		-static
-

Referenced by arm_dct4_init_f32().

-
- - - - - -
const float32_t cos_factors_512[512]
- 		-static
-

Referenced by arm_dct4_init_f32().

-
- - - - - -
const float32_t cos_factors_8192[8192]
- 		-static
-
- -

Referenced by arm_dct4_init_f32().

- -
-
- -
-
- - - - - -
- - - - -
const q15_t ALIGN4 cos_factorsQ15_128[128]
- 		-static
-
cosFactor tables are generated using the formula : 
 cos_factors[n] = 2 * cos((2n+1)*pi/(4*N))
-
C command to generate the table 
-for(i = 0; i< N; i++)
-{
-  cos_factors[i]= 2 * cos((2*i+1)*c/2);
-}
-
where N is the number of factors to generate and c is pi/(2*N)
-
Then converted to q15 format by multiplying with 2^31 and saturated if required.
- -

Referenced by arm_dct4_init_q15().

- -
-
- -
-
- - - - - -
- - - - -
const q15_t ALIGN4 cos_factorsQ15_2048[2048]
- 		-static
-
- -

Referenced by arm_dct4_init_q15().

- -
-
- -
-
- - - - - -
- - - - -
const q15_t ALIGN4 cos_factorsQ15_512[512]
- 		-static
-
- -

Referenced by arm_dct4_init_q15().

- -
-
- -
-
- - - - - -
- - - - -
const q15_t ALIGN4 cos_factorsQ15_8192[8192]
- 		-static
-
- -

Referenced by arm_dct4_init_q15().

- - - - - -
const q31_t cos_factorsQ31_128[128]
- 		-static
-
cosFactor tables are generated using the formula : 
cos_factors[n] = 2 * cos((2n+1)*pi/(4*N))
-
C command to generate the table 
-for(i = 0; i< N; i++)
-{
-  cos_factors[i]= 2 * cos((2*i+1)*c/2);
-}
-
where N is the number of factors to generate and c is pi/(2*N)
-
Then converted to q31 format by multiplying with 2^31 and saturated if required.
- -

Referenced by arm_dct4_init_q31().

- - - - - -
const q31_t cos_factorsQ31_2048[2048]
- 		-static
-

Referenced by arm_dct4_init_q31().

-
- - - - - -
const q31_t cos_factorsQ31_512[512]
- 		-static
-

Referenced by arm_dct4_init_q31().

-
- - - - - -
const q31_t cos_factorsQ31_8192[8192]
- 		-static
-

Referenced by arm_dct4_init_q31().

-
- - - - - -
const float32_t Weights_128[256]
- 		-static
Weights tables are generated using the formula : 
weights[n] = e^(-j*n*pi/(2*N))
C command to generate the table 
 for(i = 0; i< N; i++)
 {
-   weights[2*i]= cos(i*c);
-   weights[(2*i)+1]= -sin(i * c);
+  weights[(2*i)]   =  cos (i*c);
+  weights[(2*i)+1] = -sin (i*c);
 }
-
Where N is the Number of weights to be calculated and c is pi/(2*N)
+
where N is the Number of weights to be calculated and c is pi/(2*N)
In the tables below the real and imaginary values are placed alternatively, hence the array length is 2*N.
- -

Referenced by arm_dct4_init_f32().

+
cosFactor tables are generated using the formula : 
cos_factors[n] = 2 * cos((2n+1)*pi/(4*N))
+
C command to generate the table
+
 for(i = 0; i< N; i++)
+{
+   cos_factors[i]= 2 * cos((2*i+1)*c/2);
+}
+
where N is the number of factors to generate and c is pi/(2*N)
- - - - - -
const float32_t Weights_2048[4096]
- 		-static
-

Referenced by arm_dct4_init_f32().

-
- - - - - -
const float32_t Weights_512[1024]
- 		-static
-

Referenced by arm_dct4_init_f32().

-
- - - - - -
const float32_t Weights_8192[16384]
- 		-static
-
- -

Referenced by arm_dct4_init_f32().

- -
-
- -
-
- - - - - -
- - - - -
const q15_t ALIGN4 WeightsQ15_128[256]
- 		-static
-
-
Weights tables are generated using the formula : 
weights[n] = e^(-j*n*pi/(2*N))
-
C command to generate the table 
-for(i = 0; i< N; i++)
-{
-  weights[2*i]= cos(i*c);
-  weights[(2*i)+1]= -sin(i * c);
-}
-
where N is the Number of weights to be calculated and c is pi/(2*N)
-
Converted the output to q15 format by multiplying with 2^31 and saturated if required.
-
In the tables below the real and imaginary values are placed alternatively, hence the array length is 2*N.
- -

Referenced by arm_dct4_init_q15().

- -
-
- -
-
- - - - - -
- - - - -
const q15_t ALIGN4 WeightsQ15_2048[4096]
- 		-static
-
- -

Referenced by arm_dct4_init_q15().

- -
-
- -
-
- - - - - -
- - - - -
const q15_t ALIGN4 WeightsQ15_512[1024]
- 		-static
-

Referenced by arm_dct4_init_q15().

- -
-
- -
-
- - - - - -
- - - - -
const q15_t ALIGN4 WeightsQ15_8192[16384]
- 		-static
-
- -

Referenced by arm_dct4_init_q15().

-
- - - - - -
const q31_t WeightsQ31_128[256]
- 		-static
Weights tables are generated using the formula : 
weights[n] = e^(-j*n*pi/(2*N))
C command to generate the table 
-for(i = 0; i< N; i++)
+for (i = 0; i< N; i++)
 {
-  weights[2*i]= cos(i*c);
-  weights[(2*i)+1]= -sin(i * c);
+  weights[(2*i)]   =  cos(i*c);
+  weights[(2*i)+1] = -sin(i*c);
 }
where N is the Number of weights to be calculated and c is pi/(2*N)
Convert the output to q31 format by multiplying with 2^31 and saturated if required.
In the tables below the real and imaginary values are placed alternatively, hence the array length is 2*N.
- -

Referenced by arm_dct4_init_q31().

+
cosFactor tables are generated using the formula : 
cos_factors[n] = 2 * cos((2n+1)*pi/(4*N))
+
C command to generate the table 
+for (i = 0; i< N; i++)
+{
+  cos_factors[i] = 2 * cos((2*i+1)*c/2);
+}
+
where N is the number of factors to generate and c is pi/(2*N)
+
Then converted to q31 format by multiplying with 2^31 and saturated if required.
- - - - - -
const q31_t WeightsQ31_2048[4096]
- 		-static
-

Referenced by arm_dct4_init_q31().

-
- - - - - -
const q31_t WeightsQ31_512[1024]
- 		-static
-

Referenced by arm_dct4_init_q31().

-
- - - - - -
const q31_t WeightsQ31_8192[16384]
- 		-static
-

Referenced by arm_dct4_init_q31().

-
@@ -752,7 +384,7 @@ for(i = 0; i< N; i++)