1 2 /* Test the SDL CD-ROM audio functions */ 3 4 #include <stdlib.h> 5 #include <stdio.h> 6 #include <string.h> 7 #include <ctype.h> 8 9 #include "SDL.h" 10 11 /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */ 12 static void quit(int rc) 13 { 14 SDL_Quit(); 15 exit(rc); 16 } 17 18 static void PrintStatus(int driveindex, SDL_CD *cdrom) 19 { 20 CDstatus status; 21 char *status_str; 22 23 status = SDL_CDStatus(cdrom); 24 switch (status) { 25 case CD_TRAYEMPTY: 26 status_str = "tray empty"; 27 break; 28 case CD_STOPPED: 29 status_str = "stopped"; 30 break; 31 case CD_PLAYING: 32 status_str = "playing"; 33 break; 34 case CD_PAUSED: 35 status_str = "paused"; 36 break; 37 case CD_ERROR: 38 status_str = "error state"; 39 break; 40 } 41 printf("Drive %d status: %s\n", driveindex, status_str); 42 if ( status >= CD_PLAYING ) { 43 int m, s, f; 44 FRAMES_TO_MSF(cdrom->cur_frame, &m, &s, &f); 45 printf("Currently playing track %d, %d:%2.2d\n", 46 cdrom->track[cdrom->cur_track].id, m, s); 47 } 48 } 49 50 static void ListTracks(SDL_CD *cdrom) 51 { 52 int i; 53 int m, s, f; 54 char* trtype; 55 56 SDL_CDStatus(cdrom); 57 printf("Drive tracks: %d\n", cdrom->numtracks); 58 for ( i=0; i<cdrom->numtracks; ++i ) { 59 FRAMES_TO_MSF(cdrom->track[i].length, &m, &s, &f); 60 if ( f > 0 ) 61 ++s; 62 switch(cdrom->track[i].type) 63 { 64 case SDL_AUDIO_TRACK: 65 trtype="audio"; 66 break; 67 case SDL_DATA_TRACK: 68 trtype="data"; 69 break; 70 default: 71 trtype="unknown"; 72 break; 73 } 74 printf("\tTrack (index %d) %d: %d:%2.2d / %d [%s track]\n", i, 75 cdrom->track[i].id, m, s, cdrom->track[i].length, trtype); 76 } 77 } 78 79 static void PrintUsage(char *argv0) 80 { 81 fprintf(stderr, "Usage: %s [drive#] [command] [command] ...\n", argv0); 82 fprintf(stderr, "Where 'command' is one of:\n"); 83 fprintf(stderr, " -status\n"); 84 fprintf(stderr, " -list\n"); 85 fprintf(stderr, " -play [first_track] [first_frame] [num_tracks] [num_frames]\n"); 86 fprintf(stderr, " -pause\n"); 87 fprintf(stderr, " -resume\n"); 88 fprintf(stderr, " -stop\n"); 89 fprintf(stderr, " -eject\n"); 90 fprintf(stderr, " -sleep <milliseconds>\n"); 91 } 92 93 int main(int argc, char *argv[]) 94 { 95 int drive; 96 int i; 97 SDL_CD *cdrom; 98 99 /* Initialize SDL first */ 100 if ( SDL_Init(SDL_INIT_CDROM) < 0 ) { 101 fprintf(stderr, "Couldn't initialize SDL: %s\n",SDL_GetError()); 102 return(1); 103 } 104 105 /* Find out how many CD-ROM drives are connected to the system */ 106 if ( SDL_CDNumDrives() == 0 ) { 107 printf("No CD-ROM devices detected\n"); 108 quit(0); 109 } 110 printf("Drives available: %d\n", SDL_CDNumDrives()); 111 for ( i=0; i<SDL_CDNumDrives(); ++i ) { 112 printf("Drive %d: \"%s\"\n", i, SDL_CDName(i)); 113 } 114 115 /* Open the CD-ROM */ 116 drive = 0; 117 i=1; 118 if ( argv[i] && isdigit(argv[i][0]) ) { 119 drive = atoi(argv[i++]); 120 } 121 cdrom = SDL_CDOpen(drive); 122 if ( cdrom == NULL ) { 123 fprintf(stderr, "Couldn't open drive %d: %s\n", drive, 124 SDL_GetError()); 125 quit(2); 126 } 127 #ifdef TEST_NULLCD 128 cdrom = NULL; 129 #endif 130 131 /* Find out which function to perform */ 132 for ( ; argv[i]; ++i ) { 133 if ( strcmp(argv[i], "-status") == 0 ) { 134 /* PrintStatus(drive, cdrom); */ 135 } else 136 if ( strcmp(argv[i], "-list") == 0 ) { 137 ListTracks(cdrom); 138 } else 139 if ( strcmp(argv[i], "-play") == 0 ) { 140 int strack, sframe; 141 int ntrack, nframe; 142 143 strack = 0; 144 if ( argv[i+1] && isdigit(argv[i+1][0]) ) { 145 strack = atoi(argv[++i]); 146 } 147 sframe = 0; 148 if ( argv[i+1] && isdigit(argv[i+1][0]) ) { 149 sframe = atoi(argv[++i]); 150 } 151 ntrack = 0; 152 if ( argv[i+1] && isdigit(argv[i+1][0]) ) { 153 ntrack = atoi(argv[++i]); 154 } 155 nframe = 0; 156 if ( argv[i+1] && isdigit(argv[i+1][0]) ) { 157 nframe = atoi(argv[++i]); 158 } 159 if ( CD_INDRIVE(SDL_CDStatus(cdrom)) ) { 160 if ( SDL_CDPlayTracks(cdrom, strack, sframe, 161 ntrack, nframe) < 0 ) { 162 fprintf(stderr, 163 "Couldn't play tracks %d/%d for %d/%d: %s\n", 164 strack, sframe, ntrack, nframe, SDL_GetError()); 165 } 166 } else { 167 fprintf(stderr, "No CD in drive!\n"); 168 } 169 } else 170 if ( strcmp(argv[i], "-pause") == 0 ) { 171 if ( SDL_CDPause(cdrom) < 0 ) { 172 fprintf(stderr, "Couldn't pause CD: %s\n", 173 SDL_GetError()); 174 } 175 } else 176 if ( strcmp(argv[i], "-resume") == 0 ) { 177 if ( SDL_CDResume(cdrom) < 0 ) { 178 fprintf(stderr, "Couldn't resume CD: %s\n", 179 SDL_GetError()); 180 } 181 } else 182 if ( strcmp(argv[i], "-stop") == 0 ) { 183 if ( SDL_CDStop(cdrom) < 0 ) { 184 fprintf(stderr, "Couldn't eject CD: %s\n", 185 SDL_GetError()); 186 } 187 } else 188 if ( strcmp(argv[i], "-eject") == 0 ) { 189 if ( SDL_CDEject(cdrom) < 0 ) { 190 fprintf(stderr, "Couldn't eject CD: %s\n", 191 SDL_GetError()); 192 } 193 } else 194 if ( (strcmp(argv[i], "-sleep") == 0) && 195 (argv[i+1] && isdigit(argv[i+1][0])) ) { 196 SDL_Delay(atoi(argv[++i])); 197 printf("Delayed %d milliseconds\n", atoi(argv[i])); 198 } else { 199 PrintUsage(argv[0]); 200 SDL_CDClose(cdrom); 201 quit(1); 202 } 203 } 204 PrintStatus(drive, cdrom); 205 SDL_CDClose(cdrom); 206 SDL_Quit(); 207 208 return(0); 209 } 210
