C++ mkl库DCT函数实现问题

我试图用mkl.lib DCT函数替换ipp.lib DCT函数。 我使用以下基于Ipp的API进行DCT：

ippsDCTFwdInitAlloc_32f
ippsDCTFwd_32f
ippsDCTFwdFree_32f

基于PFB mkl的DCT示例代码：

#include <time.h>
#include <stdlib.h>
#include "mkl.h"
int main(int argc, char* argv[]){

    float *dpar;
    float *out;
    MKL_INT    *ipar;
    MKL_INT tt_type,stat,n_1,nn;
    FILE *fp,*fw,*fonce;
    fp = fopen( "D:\\dump\\fileinput.txt","r" );
    if(fp == NULL){
        cout<<"file not created properly"<<endl;
    }
    DFTI_DESCRIPTOR_HANDLE handle = 0;
    int n = 150; /*Hardcoded to run for my code TODO: going to change after integrating into my main codebase.As I can't attach my full fileinput.txt .So just taken n value = 150 */
    nn = (MKL_INT)n;
    tt_type = MKL_STAGGERED_COSINE_TRANSFORM;

    n_1 = nn + 1 ;
    out = (float*)malloc((n+1)*sizeof(float));
    dpar= (float*)malloc((5*n_1/2+2)*sizeof(float));
    ipar= (MKL_INT*)malloc((128)*sizeof(int));
    s_init_trig_transform(&n_1,&tt_type,ipar,dpar,&stat);
    for (int srcSize =0 ;srcSize< n ; srcSize++)
    {
        fscanf(fp,"%f\n",&out[srcSize]);
    }
    fclose(fp);
    if (stat != 0)
    {
        printf("\n============================================================================\n");
        printf("FFTW2MKL FATAL ERROR: MKL TT initialization has failed with status=%d\n",(MKL_INT)stat);
        printf("Please refer to the Trigonometric Transform Routines Section of MKL Manual\n");
        printf("to find what went wrong...\n");
        printf("============================================================================\n");
        return NULL;
    }
    ipar[10] = 1;    //nx, that is, the number of intervals along the x-axis, in the Cartesian case.
    ipar[14] = n_1;  //specifies the internal partitioning of the dpar array.
    ipar[15] = 1;    //value of ipar[14]+1,Specifies the internal partitioning of the dpar array.
    s_commit_trig_transform(out,&handle,ipar,dpar,&stat);
    if (stat != 0)
    {
        printf("\n============================================================================\n");
        printf("FFTW2MKL FATAL ERROR: MKL TT commit step has failed with status=%d\n",(MKL_INT)stat);
        printf("Please refer to the Trigonometric Transform Routines Section of MKL Manual\n");
        printf("to find what went wrong...\n");
        printf("============================================================================\n");
        return NULL;
    }
    s_forward_trig_transform(out,&handle,ipar,dpar,&stat);
    if (stat != 0)
    {
        printf("\n============================================================================\n");
        printf("FFTW2MKL FATAL ERROR: MKL TT commit step has failed with status=%d\n",(MKL_INT)stat);
        printf("Please refer to the Trigonometric Transform Routines Section of MKL Manual\n");
        printf("to find what went wrong...\n");
        printf("============================================================================\n");
        return NULL;
    }
    free_trig_transform(&handle,ipar,&stat);
    printf("\n===== DCT GOT OVER ======== \n");

    return 0;

}

---

我想你说的是这些函数的dpar参数。 实际上，它们不用于计算结果。它们仅用于存储TT计算中使用的中间sin/cos数据

对于计算功能： d_前向触发变换（双f[]，DFTI描述符_句柄*句柄，MKL _INTIPAR[]，双dpar[]，MKL _INT*stat）

输入和输出都是相同大小的F[]。 有关更多信息，请参阅以下链接：

---

我将对此进行检查。但至少要按原样运行代码，您应该使用“cout”或“printf”。或者添加#使用名称空间std包含“iostream”；它帮助我理解了一些要点。但它仍然不能解决问题！！

129.000000  128.000000  145.000000  140.000000  102.000000  93.000000   100.000000  97.000000   94.000000   88.000000   58.000000   67.000000   
79.000000   62.000000   62.000000   64.000000   63.000000   63.000000   70.000000   80.000000   61.000000   62.000000   63.000000   64.000000   
62.000000   78.000000   66.000000   65.000000   68.000000   74.000000   78.000000   66.000000   67.000000   76.000000   67.000000   65.000000   
76.000000   83.000000   66.000000   66.000000   65.000000   66.000000   72.000000   80.000000   65.000000   66.000000   69.000000   80.000000   
75.000000   66.000000   71.000000   80.000000   69.000000   80.000000   85.000000   70.000000   77.000000   68.000000   67.000000   80.000000   
83.000000   69.000000   71.000000   73.000000   69.000000   70.000000   71.000000   71.000000   70.000000   71.000000   88.000000   86.000000   
78.000000   78.000000   70.000000   73.000000   81.000000   83.000000   76.000000   75.000000   72.000000   72.000000   73.000000   75.000000   
79.000000   76.000000   80.000000   87.000000   84.000000   79.000000   73.000000   72.000000   72.000000   72.000000   73.000000   79.000000   
76.000000   74.000000   76.000000   78.000000   76.000000   74.000000   73.000000   76.000000   78.000000   78.000000   73.000000   74.000000   
73.000000   72.000000   72.000000   73.000000   75.000000   77.000000   76.000000   75.000000   74.000000   74.000000   75.000000   78.000000   
81.000000   78.000000   75.000000   74.000000   74.000000   74.000000   75.000000   77.000000   79.000000   80.000000   81.000000   78.000000   
76.000000   75.000000   74.000000   74.000000   74.000000   75.000000   76.000000   76.000000   75.000000   77.000000   78.000000   79.000000   
80.000000   79.000000   79.000000   79.000000   78.000000   76.000000   76.000000   76.000000   76.000000   77.000000   77.000000   77.000000   
78.000000   80.000000   80.000000   80.000000   80.000000   80.000000   78.000000   78.000000   78.000000   78.000000   78.000000   80.000000