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      1 /*
      2  *  Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
      3  *
      4  *  Use of this source code is governed by a BSD-style license
      5  *  that can be found in the LICENSE file in the root of the source
      6  *  tree. An additional intellectual property rights grant can be found
      7  *  in the file PATENTS.  All contributing project authors may
      8  *  be found in the AUTHORS file in the root of the source tree.
      9  */
     10 
     11 #include <stdio.h>
     12 #include <stdlib.h>
     13 #include <string.h>
     14 #include <ctype.h>
     15 
     16 //#include "isac_codec.h"
     17 //#include "isac_structs.h"
     18 #include "isacfix.h"
     19 
     20 
     21 #define NUM_CODECS 1
     22 
     23 int main(int argc, char* argv[])
     24 {
     25     FILE *inFileList;
     26     FILE *audioFile;
     27     FILE *outFile;
     28     char audioFileName[501];
     29     short audioBuff[960];
     30     short encoded[600];
     31     short startAudio;
     32     short encodedLen;
     33     ISACFIX_MainStruct *isac_struct;
     34     unsigned long int hist[601];
     35 
     36     // reset the histogram
     37     for(short n=0; n < 601; n++)
     38     {
     39         hist[n] = 0;
     40     }
     41 
     42 
     43     inFileList = fopen(argv[1], "r");
     44     if(inFileList == NULL)
     45     {
     46         printf("Could not open the input file.\n");
     47         getchar();
     48         exit(-1);
     49     }
     50     outFile = fopen(argv[2], "w");
     51     if(outFile == NULL)
     52     {
     53         printf("Could not open the histogram file.\n");
     54         getchar();
     55         exit(-1);
     56     }
     57 
     58     short frameSizeMsec = 30;
     59     if(argc > 3)
     60     {
     61         frameSizeMsec = atoi(argv[3]);
     62     }
     63 
     64     short audioOffset = 0;
     65     if(argc > 4)
     66     {
     67         audioOffset = atoi(argv[4]);
     68     }
     69     int ok;
     70     ok = WebRtcIsacfix_Create(&isac_struct);
     71     // instantaneous mode
     72     ok |= WebRtcIsacfix_EncoderInit(isac_struct, 1);
     73     // is not used but initialize
     74     ok |= WebRtcIsacfix_DecoderInit(isac_struct);
     75     ok |= WebRtcIsacfix_Control(isac_struct, 32000, frameSizeMsec);
     76 
     77     if(ok != 0)
     78     {
     79         printf("\nProblem in seting up iSAC\n");
     80         exit(-1);
     81     }
     82 
     83     while( fgets(audioFileName, 500, inFileList) != NULL )
     84     {
     85         // remove trailing white-spaces and any Cntrl character
     86         if(strlen(audioFileName) == 0)
     87         {
     88             continue;
     89         }
     90         short n = strlen(audioFileName) - 1;
     91         while(isspace(audioFileName[n]) || iscntrl(audioFileName[n]))
     92         {
     93             audioFileName[n] = '\0';
     94             n--;
     95             if(n < 0)
     96             {
     97                 break;
     98             }
     99         }
    100 
    101         // remove leading spaces
    102         if(strlen(audioFileName) == 0)
    103         {
    104             continue;
    105         }
    106         n = 0;
    107         while((isspace(audioFileName[n]) || iscntrl(audioFileName[n])) &&
    108             (audioFileName[n] != '\0'))
    109         {
    110             n++;
    111         }
    112         memmove(audioFileName, &audioFileName[n], 500 - n);
    113         if(strlen(audioFileName) == 0)
    114         {
    115             continue;
    116         }
    117         audioFile = fopen(audioFileName, "rb");
    118         if(audioFile == NULL)
    119         {
    120             printf("\nCannot open %s!!!!!\n", audioFileName);
    121             exit(0);
    122         }
    123 
    124         if(audioOffset > 0)
    125         {
    126             fseek(audioFile, (audioOffset<<1), SEEK_SET);
    127         }
    128 
    129         while(fread(audioBuff, sizeof(short), (480*frameSizeMsec/30), audioFile) >= (480*frameSizeMsec/30))
    130         {
    131             startAudio = 0;
    132             do
    133             {
    134                 encodedLen = WebRtcIsacfix_Encode(isac_struct,
    135                                                   &audioBuff[startAudio], encoded);
    136                 startAudio += 160;
    137             } while(encodedLen == 0);
    138 
    139             if(encodedLen < 0)
    140             {
    141                 printf("\nEncoding Error!!!\n");
    142                 exit(0);
    143             }
    144             hist[encodedLen]++;
    145         }
    146         fclose(audioFile);
    147     }
    148     fclose(inFileList);
    149     unsigned long totalFrames = 0;
    150     for(short n=0; n < 601; n++)
    151     {
    152         totalFrames += hist[n];
    153         fprintf(outFile, "%10lu\n", hist[n]);
    154     }
    155     fclose(outFile);
    156 
    157     short topTenCntr = 0;
    158     printf("\nTotal number of Frames %lu\n\n", totalFrames);
    159     printf("Payload Len    # occurences\n");
    160     printf("===========    ============\n");
    161 
    162     for(short n = 600; (n >= 0) && (topTenCntr < 10); n--)
    163     {
    164         if(hist[n] > 0)
    165         {
    166             topTenCntr++;
    167             printf("    %3d            %3d\n", n, hist[n]);
    168         }
    169     }
    170     WebRtcIsacfix_Free(isac_struct);
    171     return 0;
    172 }
    173 
    174