1 /* Copyright (c) 2011 Xiph.Org Foundation 2 Written by Jean-Marc Valin */ 3 /* 4 Redistribution and use in source and binary forms, with or without 5 modification, are permitted provided that the following conditions 6 are met: 7 8 - Redistributions of source code must retain the above copyright 9 notice, this list of conditions and the following disclaimer. 10 11 - Redistributions in binary form must reproduce the above copyright 12 notice, this list of conditions and the following disclaimer in the 13 documentation and/or other materials provided with the distribution. 14 15 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16 ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 18 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER 19 OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 20 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 22 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 23 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 24 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 25 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #ifdef HAVE_CONFIG_H 29 #include "config.h" 30 #endif 31 32 #include "opus.h" 33 #include <stdio.h> 34 #include <stdlib.h> 35 #include <string.h> 36 37 #define MAX_PACKETOUT 32000 38 39 void usage(char *argv0) 40 { 41 fprintf(stderr, "usage: %s [options] input_file output_file\n", argv0); 42 } 43 44 static void int_to_char(opus_uint32 i, unsigned char ch[4]) 45 { 46 ch[0] = i>>24; 47 ch[1] = (i>>16)&0xFF; 48 ch[2] = (i>>8)&0xFF; 49 ch[3] = i&0xFF; 50 } 51 52 static opus_uint32 char_to_int(unsigned char ch[4]) 53 { 54 return ((opus_uint32)ch[0]<<24) | ((opus_uint32)ch[1]<<16) 55 | ((opus_uint32)ch[2]<< 8) | (opus_uint32)ch[3]; 56 } 57 58 int main(int argc, char *argv[]) 59 { 60 int i, eof=0; 61 FILE *fin, *fout; 62 unsigned char packets[48][1500]; 63 int len[48]; 64 int rng[48]; 65 OpusRepacketizer *rp; 66 unsigned char output_packet[MAX_PACKETOUT]; 67 int merge = 1, split=0; 68 69 if (argc < 3) 70 { 71 usage(argv[0]); 72 return EXIT_FAILURE; 73 } 74 for (i=1;i<argc-2;i++) 75 { 76 if (strcmp(argv[i], "-merge")==0) 77 { 78 merge = atoi(argv[i+1]); 79 if(merge<1) 80 { 81 fprintf(stderr, "-merge parameter must be at least 1.\n"); 82 return EXIT_FAILURE; 83 } 84 if(merge>48) 85 { 86 fprintf(stderr, "-merge parameter must be less than 48.\n"); 87 return EXIT_FAILURE; 88 } 89 i++; 90 } else if (strcmp(argv[i], "-split")==0) 91 split = 1; 92 else 93 { 94 fprintf(stderr, "Unknown option: %s\n", argv[i]); 95 usage(argv[0]); 96 return EXIT_FAILURE; 97 } 98 } 99 fin = fopen(argv[argc-2], "r"); 100 if(fin==NULL) 101 { 102 fprintf(stderr, "Error opening input file: %s\n", argv[argc-2]); 103 return EXIT_FAILURE; 104 } 105 fout = fopen(argv[argc-1], "w"); 106 if(fout==NULL) 107 { 108 fprintf(stderr, "Error opening output file: %s\n", argv[argc-1]); 109 fclose(fin); 110 return EXIT_FAILURE; 111 } 112 113 rp = opus_repacketizer_create(); 114 while (!eof) 115 { 116 int err; 117 int nb_packets=merge; 118 opus_repacketizer_init(rp); 119 for (i=0;i<nb_packets;i++) 120 { 121 unsigned char ch[4]; 122 err = fread(ch, 1, 4, fin); 123 len[i] = char_to_int(ch); 124 /*fprintf(stderr, "in len = %d\n", len[i]);*/ 125 if (len[i]>1500 || len[i]<0) 126 { 127 if (feof(fin)) 128 { 129 eof = 1; 130 } else { 131 fprintf(stderr, "Invalid payload length\n"); 132 fclose(fin); 133 fclose(fout); 134 return EXIT_FAILURE; 135 } 136 break; 137 } 138 err = fread(ch, 1, 4, fin); 139 rng[i] = char_to_int(ch); 140 err = fread(packets[i], 1, len[i], fin); 141 if (feof(fin)) 142 { 143 eof = 1; 144 break; 145 } 146 err = opus_repacketizer_cat(rp, packets[i], len[i]); 147 if (err!=OPUS_OK) 148 { 149 fprintf(stderr, "opus_repacketizer_cat() failed: %s\n", opus_strerror(err)); 150 break; 151 } 152 } 153 nb_packets = i; 154 155 if (eof) 156 break; 157 158 if (!split) 159 { 160 err = opus_repacketizer_out(rp, output_packet, MAX_PACKETOUT); 161 if (err>0) { 162 unsigned char int_field[4]; 163 int_to_char(err, int_field); 164 if(fwrite(int_field, 1, 4, fout)!=4){ 165 fprintf(stderr, "Error writing.\n"); 166 return EXIT_FAILURE; 167 } 168 int_to_char(rng[nb_packets-1], int_field); 169 if (fwrite(int_field, 1, 4, fout)!=4) { 170 fprintf(stderr, "Error writing.\n"); 171 return EXIT_FAILURE; 172 } 173 if (fwrite(output_packet, 1, err, fout)!=(unsigned)err) { 174 fprintf(stderr, "Error writing.\n"); 175 return EXIT_FAILURE; 176 } 177 /*fprintf(stderr, "out len = %d\n", err);*/ 178 } else { 179 fprintf(stderr, "opus_repacketizer_out() failed: %s\n", opus_strerror(err)); 180 } 181 } else { 182 int nb_frames = opus_repacketizer_get_nb_frames(rp); 183 for (i=0;i<nb_frames;i++) 184 { 185 err = opus_repacketizer_out_range(rp, i, i+1, output_packet, MAX_PACKETOUT); 186 if (err>0) { 187 unsigned char int_field[4]; 188 int_to_char(err, int_field); 189 if (fwrite(int_field, 1, 4, fout)!=4) { 190 fprintf(stderr, "Error writing.\n"); 191 return EXIT_FAILURE; 192 } 193 if (i==nb_frames-1) 194 int_to_char(rng[nb_packets-1], int_field); 195 else 196 int_to_char(0, int_field); 197 if (fwrite(int_field, 1, 4, fout)!=4) { 198 fprintf(stderr, "Error writing.\n"); 199 return EXIT_FAILURE; 200 } 201 if (fwrite(output_packet, 1, err, fout)!=(unsigned)err) { 202 fprintf(stderr, "Error writing.\n"); 203 return EXIT_FAILURE; 204 } 205 /*fprintf(stderr, "out len = %d\n", err);*/ 206 } else { 207 fprintf(stderr, "opus_repacketizer_out() failed: %s\n", opus_strerror(err)); 208 } 209 210 } 211 } 212 } 213 214 fclose(fin); 215 fclose(fout); 216 return EXIT_SUCCESS; 217 } 218
