util.c

这是在PCA下的基于IPP库示例代码例子,在网上下了IPP的库之后,设置相关参数就可以编译该代码.

/*////////////////////////////////////////////////////////////////////////
//
// INTEL CORPORATION PROPRIETARY INFORMATION
// This software is supplied under the terms of a license agreement or
// nondisclosure agreement with Intel Corporation and may not be copied
// or disclosed except in accordance with the terms of that agreement.
// Copyright (c) 2005 Intel Corporation. All Rights Reserved.
//
//   Intel(R)  Integrated Performance Primitives
//
//     USC Echo Canceller sample
//
// By downloading and installing this sample, you hereby agree that the
// accompanying Materials are being provided to you under the terms and
// conditions of the End User License Agreement for the Intel(R) Integrated
// Performance Primitives product previously accepted by you. Please refer
// to the file ipplic.htm located in the root directory of your Intel(R) IPP
// product installation for more information.
//
// Purpose: Auxiliary functions file.
//
////////////////////////////////////////////////////////////////////////*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "util.h"
#include "ipps.h"
#include "ippsc.h"

int OutputInfoString(int flConsole, FILE *fptrLog, const char *string)
{
   int count;

   if(fptrLog == NULL) count = printf("%s", string);
   else {
     if(flConsole == 0) count = printf("%s", string);
     count = fprintf(fptrLog, "%s", string);
   }
   return count;
}

void SetCommandLineByDefault(CommandLineParams *params)
{
   memset((void*)params,0,sizeof(CommandLineParams));
   strcpy(params->ECName, "EC_INT");
   params->alg = 2;
   params->freq = 8000;
   params->tail = 16;
   params->ah_mode = 0;
   params->nRepeat = 1;
   params->puttolog = 0;
   params->puttocsv = 0;
}
int ReadCommandLine(CommandLineParams *params, int argc, char *argv[])
{
   int usage = 0;


   argc--;
   while(argc-- > 0){
      argv++;
      if ('-' == (*argv)[0]) {
         if (!strncmp("-f",*argv,2)){
            if(argc-->0){
               int f = atoi(*++argv);
               if (f == 8)
                  params->freq = 8000;
               else if (f == 16) {
                  params->freq = 16000;
               } else {
                  OutputInfoString(1, NULL,"Sample frequency must be 8 or 16 kHz\n");
                  usage = 1;
               }
            }
            continue;
         } else if(!strcmp("-type",*argv)) {
            if(argc-->0){
              argv ++;
              strcpy(params->ECName, *argv);
            }
            continue;
         } else if(!strcmp("-a",*argv)) {
            if(argc-->0){
                argv ++;
                if (!strcmp("fb",*argv) || !strcmp("fullband",*argv)) {
                    params->alg = 1;
                } else if (!strcmp("sb",*argv) || !strcmp("subband",*argv)) {
                    params->alg = 2;
                } else if (!strcmp("sbf",*argv) || !strcmp("subbandfast",*argv)) {
                    params->alg = 3;
                } else {
                  OutputInfoString(1, NULL,"Algorithm specificator must be fb (fullband), sb (subband) or sbf (subbandfast)\n");
                  usage = 1;
               }
            }
            continue;
         }else if(!strcmp("-l",*argv)) {
            if(argc-->0){
               int eplen = atoi(*++argv);
               if (eplen >= 1 && eplen <= 200)
                  params->tail = eplen;
               else {
                  OutputInfoString(1, NULL,"Echo tail length must be in the range [1, 200] ms for subband algorithm, [1, 16] for fullband algorithm\n");
                  usage = 1;
               }
            }
            continue;
         }/*else if (!strcmp(*argv,"-delay")){
            if(argc-->0){
               fdelay = atof(*++argv);
               if(fdelay < 0) fdelay=0;
            }
         }*/
         else if (!strcmp(*argv,"-ah")){
             params->ah_mode = 1;
             continue;
         }else if (!strcmp(*argv,"-s")){
            if(argc-->0){
               int rep = atoi(*++argv);
               if(0 == rep) rep=1;
               if(rep > params->nRepeat) params->nRepeat=rep;
            }
            continue;
         }else if(!strcmp("-o",*argv)) {
            if(argc-->0){
              argv++;
              strcpy(params->logFileName, *argv);
              params->puttolog = 1;
            }
            continue;
         }else if (!strcmp(*argv,"-list")){ /* check enumerate formats mode */
            params->enumerate = 1;
            usage=1;
            return usage;
         } else if (!strcmp(*argv,"-c")){ /* check if csv output is specified */
             if(argc-->0){
                 params->puttocsv=1;
                 argv++;
                 strcpy(params->csvFileName, *argv);
             }else{
                 OutputInfoString(1, NULL,"Unknown csv file name.\n");
                 usage=1;
             }
             continue;
         }
      }else{
         argc++;
         argv--;
         break;
      }
   }


   if ((params->alg == 1) && (params->tail > 16)) {
       OutputInfoString(1, NULL,"Echo tail length for fullband algorithm must be in range [1, 16] ms\n");
       usage = 1;
   }
   if(argc-->0){
      argv++;
      strcpy(params->rinFileName, *argv);
   }else{
      OutputInfoString(1, NULL,"Unknown r-in input file.\n");
      usage=1;
   }
   if(argc-->0){
      argv++;
      strcpy(params->sinFileName, *argv);
   }else{
      OutputInfoString(1, NULL,"Unknown s-in input file.\n");
      usage=1;
   }
   if(argc-->0){
      argv++;
      strcpy(params->soutFileName, *argv);
   }else{
      OutputInfoString(1, NULL,"Unknown output file.\n");
      usage=1;
   }

   return usage;
}

void PrintUsage(const char * pAppName, FILE *fptrLog)
{
   char pString[MAX_LEN_STRING];

   sprintf(pString, "Usage: %s [options] <receive-in 16-bit PCM file> <send-in 16-bit PCM file> <send-out 16-bit PCM file>\n", pAppName);
   OutputInfoString(1, fptrLog, (const char*)pString);
   OutputInfoString(1, fptrLog,"   [-type EC type ] Set the type of Echo Canceller [EC_INT or EC_FP]\n");
   OutputInfoString(1, fptrLog,"   [-f <frequency>] Sample frequency, kHz: 8 or 16. Default 8.\n");
   OutputInfoString(1, fptrLog,"   [-a <algortihm>] Algorithm specificator: fb (fullband), sb (subband) or sbf (subbandfast). \n");
   OutputInfoString(1, fptrLog,"                    Default subband.\n");
   OutputInfoString(1, fptrLog,"   [-ah]            enable anti-howling mode\n");
   OutputInfoString(1, fptrLog,"   [-l <num>]       echo tail length, ms: in range [1, 200] for subband algorithm,\n");
   OutputInfoString(1, fptrLog,"                    [1, 16] for fullband algorithm. Default 16.\n");
   OutputInfoString(1, fptrLog,"   [-delay <val>]   Determines the delay in receive-in PCM file, sec (floating point value). \n");
   OutputInfoString(1, fptrLog,"                    Leading end of receive-in PCM will be cut off prior to echo cancel. Default:no delay.\n");
   OutputInfoString(1, fptrLog,"   [-s <num>]       Repeater, how many times to repeat an operation (optional).\n");
   OutputInfoString(1, fptrLog,"   [-c <csv filename>] Print out performance info line to specified file (optional).\n");


   return;
}