1 /* 2 * Copyright (c) 2012 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 /* 12 * testG711.cpp : Defines the entry point for the console application. 13 */ 14 15 #include <stdio.h> 16 #include <stdlib.h> 17 #include <string.h> 18 19 /* include API */ 20 #include "webrtc/modules/audio_coding/codecs/g711/g711_interface.h" 21 22 /* Runtime statistics */ 23 #include <time.h> 24 #define CLOCKS_PER_SEC_G711 1000 25 26 /* function for reading audio data from PCM file */ 27 bool readframe(int16_t* data, FILE* inp, size_t length) { 28 size_t rlen = fread(data, sizeof(int16_t), length, inp); 29 if (rlen >= length) 30 return false; 31 memset(data + rlen, 0, (length - rlen) * sizeof(int16_t)); 32 return true; 33 } 34 35 int main(int argc, char* argv[]) { 36 char inname[80], outname[40], bitname[40]; 37 FILE* inp; 38 FILE* outp; 39 FILE* bitp = NULL; 40 int framecnt; 41 bool endfile; 42 43 size_t framelength = 80; 44 45 /* Runtime statistics */ 46 double starttime; 47 double runtime; 48 double length_file; 49 50 size_t stream_len = 0; 51 int16_t shortdata[480]; 52 int16_t decoded[480]; 53 uint8_t streamdata[1000]; 54 int16_t speechType[1]; 55 char law[2]; 56 char versionNumber[40]; 57 58 /* handling wrong input arguments in the command line */ 59 if ((argc != 5) && (argc != 6)) { 60 printf("\n\nWrong number of arguments or flag values.\n\n"); 61 62 printf("\n"); 63 printf("\nG.711 test application\n\n"); 64 printf("Usage:\n\n"); 65 printf("./testG711.exe framelength law infile outfile \n\n"); 66 printf("framelength: Framelength in samples.\n"); 67 printf("law : Coding law, A och u.\n"); 68 printf("infile : Normal speech input file\n"); 69 printf("outfile : Speech output file\n\n"); 70 printf("outbits : Output bitstream file [optional]\n\n"); 71 exit(0); 72 73 } 74 75 /* Get version and print */ 76 WebRtcG711_Version(versionNumber, 40); 77 78 printf("-----------------------------------\n"); 79 printf("G.711 version: %s\n\n", versionNumber); 80 /* Get frame length */ 81 int framelength_int = atoi(argv[1]); 82 if (framelength_int < 0) { 83 printf(" G.722: Invalid framelength %d.\n", framelength_int); 84 exit(1); 85 } 86 framelength = static_cast<size_t>(framelength_int); 87 88 /* Get compression law */ 89 strcpy(law, argv[2]); 90 91 /* Get Input and Output files */ 92 sscanf(argv[3], "%s", inname); 93 sscanf(argv[4], "%s", outname); 94 if (argc == 6) { 95 sscanf(argv[5], "%s", bitname); 96 if ((bitp = fopen(bitname, "wb")) == NULL) { 97 printf(" G.711: Cannot read file %s.\n", bitname); 98 exit(1); 99 } 100 } 101 102 if ((inp = fopen(inname, "rb")) == NULL) { 103 printf(" G.711: Cannot read file %s.\n", inname); 104 exit(1); 105 } 106 if ((outp = fopen(outname, "wb")) == NULL) { 107 printf(" G.711: Cannot write file %s.\n", outname); 108 exit(1); 109 } 110 printf("\nInput: %s\nOutput: %s\n", inname, outname); 111 if (argc == 6) { 112 printf("\nBitfile: %s\n", bitname); 113 } 114 115 starttime = clock() / (double) CLOCKS_PER_SEC_G711; /* Runtime statistics */ 116 117 /* Initialize encoder and decoder */ 118 framecnt = 0; 119 endfile = false; 120 while (!endfile) { 121 framecnt++; 122 /* Read speech block */ 123 endfile = readframe(shortdata, inp, framelength); 124 125 /* G.711 encoding */ 126 if (!strcmp(law, "A")) { 127 /* A-law encoding */ 128 stream_len = WebRtcG711_EncodeA(shortdata, framelength, streamdata); 129 if (argc == 6) { 130 /* Write bits to file */ 131 if (fwrite(streamdata, sizeof(unsigned char), stream_len, bitp) != 132 stream_len) { 133 return -1; 134 } 135 } 136 WebRtcG711_DecodeA(streamdata, stream_len, decoded, speechType); 137 } else if (!strcmp(law, "u")) { 138 /* u-law encoding */ 139 stream_len = WebRtcG711_EncodeU(shortdata, framelength, streamdata); 140 if (argc == 6) { 141 /* Write bits to file */ 142 if (fwrite(streamdata, sizeof(unsigned char), stream_len, bitp) != 143 stream_len) { 144 return -1; 145 } 146 } 147 WebRtcG711_DecodeU(streamdata, stream_len, decoded, speechType); 148 } else { 149 printf("Wrong law mode\n"); 150 exit(1); 151 } 152 /* Write coded speech to file */ 153 if (fwrite(decoded, sizeof(short), framelength, outp) != framelength) { 154 return -1; 155 } 156 } 157 158 runtime = (double)(clock() / (double) CLOCKS_PER_SEC_G711 - starttime); 159 length_file = ((double) framecnt * (double) framelength / 8000); 160 printf("\n\nLength of speech file: %.1f s\n", length_file); 161 printf("Time to run G.711: %.2f s (%.2f %% of realtime)\n\n", 162 runtime, 163 (100 * runtime / length_file)); 164 printf("---------------------END----------------------\n"); 165 166 fclose(inp); 167 fclose(outp); 168 169 return 0; 170 } 171
