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testcdrom.c
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/* Test the SDL CD-ROM audio functions */
#include <stdlib.h>
#include <stdio.h>
#include <ctype.h>
#include "SDL.h"
static void PrintStatus(int driveindex, SDL_CD *cdrom)
{
CDstatus status;
char *status_str;
status = SDL_CDStatus(cdrom);
switch (status) {
case CD_TRAYEMPTY:
status_str = "tray empty";
break;
case CD_STOPPED:
status_str = "stopped";
break;
case CD_PLAYING:
status_str = "playing";
break;
case CD_PAUSED:
status_str = "paused";
break;
case CD_ERROR:
status_str = "error state";
break;
}
printf("Drive %d status: %s\n", driveindex, status_str);
if ( status >= CD_PLAYING ) {
int m, s, f;
FRAMES_TO_MSF(cdrom->cur_frame, &m, &s, &f);
printf("Currently playing track %d, %d:%2.2d\n",
cdrom->track[cdrom->cur_track].id, m, s);
}
}
static void ListTracks(SDL_CD *cdrom)
{
int i;
int m, s, f;
SDL_CDStatus(cdrom);
printf("Drive tracks: %d\n", cdrom->numtracks);
for ( i=0; i<cdrom->numtracks; ++i ) {
FRAMES_TO_MSF(cdrom->track[i].length, &m, &s, &f);
if ( f > 0 )
++s;
printf("\tTrack (index %d) %d: %d:%2.2d\n", i,
cdrom->track[i].id, m, s);
}
}
static void PrintUsage(char *argv0)
{
fprintf(stderr, "Usage: %s [drive#] [command] [command] ...\n", argv0);
fprintf(stderr, "Where 'command' is one of:\n");
fprintf(stderr, " -status\n");
fprintf(stderr, " -list\n");
fprintf(stderr, " -play [first_track] [first_frame] [num_tracks] [num_frames]\n");
fprintf(stderr, " -pause\n");
fprintf(stderr, " -resume\n");
fprintf(stderr, " -stop\n");
fprintf(stderr, " -eject\n");
fprintf(stderr, " -sleep <milliseconds>\n");
}
int main(int argc, char *argv[])
{
int drive;
int i;
SDL_CD *cdrom;
/* Initialize SDL first */
if ( SDL_Init(SDL_INIT_CDROM) < 0 ) {
fprintf(stderr, "Couldn't initialize SDL: %s\n",SDL_GetError());
exit(1);
}
atexit(SDL_Quit);
/* Find out how many CD-ROM drives are connected to the system */
if ( SDL_CDNumDrives() == 0 ) {
printf("No CD-ROM devices detected\n");
exit(0);
}
printf("Drives available: %d\n", SDL_CDNumDrives());
for ( i=0; i<SDL_CDNumDrives(); ++i ) {
printf("Drive %d: \"%s\"\n", i, SDL_CDName(i));
}
/* Open the CD-ROM */
drive = 0;
i=1;
if ( argv[i] && isdigit(argv[i][0]) ) {
drive = atoi(argv[i++]);
}
cdrom = SDL_CDOpen(drive);
if ( cdrom == NULL ) {
fprintf(stderr, "Couldn't open drive %d: %s\n", drive,
SDL_GetError());
exit(2);
}
#ifdef TEST_NULLCD
cdrom = NULL;
#endif
/* Find out which function to perform */
for ( ; argv[i]; ++i ) {
if ( strcmp(argv[i], "-status") == 0 ) {
/* PrintStatus(drive, cdrom); */
} else
if ( strcmp(argv[i], "-list") == 0 ) {
ListTracks(cdrom);
} else
if ( strcmp(argv[i], "-play") == 0 ) {
int strack, sframe;
int ntrack, nframe;
strack = 0;
if ( argv[i+1] && isdigit(argv[i+1][0]) ) {
strack = atoi(argv[++i]);
}
sframe = 0;
if ( argv[i+1] && isdigit(argv[i+1][0]) ) {
sframe = atoi(argv[++i]);
}
ntrack = 0;
if ( argv[i+1] && isdigit(argv[i+1][0]) ) {
ntrack = atoi(argv[++i]);
}
nframe = 0;
if ( argv[i+1] && isdigit(argv[i+1][0]) ) {
nframe = atoi(argv[++i]);
}
if ( CD_INDRIVE(SDL_CDStatus(cdrom)) ) {
if ( SDL_CDPlayTracks(cdrom, strack, sframe,
ntrack, nframe) < 0 ) {
fprintf(stderr,
"Couldn't play tracks %d/%d for %d/%d: %s\n",
strack, sframe, ntrack, nframe, SDL_GetError());
}
} else {
fprintf(stderr, "No CD in drive!\n");
}
} else
if ( strcmp(argv[i], "-pause") == 0 ) {
if ( SDL_CDPause(cdrom) < 0 ) {
fprintf(stderr, "Couldn't pause CD: %s\n",
SDL_GetError());
}
} else
if ( strcmp(argv[i], "-resume") == 0 ) {
if ( SDL_CDResume(cdrom) < 0 ) {
fprintf(stderr, "Couldn't resume CD: %s\n",
SDL_GetError());
}
} else
if ( strcmp(argv[i], "-stop") == 0 ) {
if ( SDL_CDStop(cdrom) < 0 ) {
fprintf(stderr, "Couldn't eject CD: %s\n",
SDL_GetError());
}
} else
if ( strcmp(argv[i], "-eject") == 0 ) {
if ( SDL_CDEject(cdrom) < 0 ) {
fprintf(stderr, "Couldn't eject CD: %s\n",
SDL_GetError());
}
} else
if ( (strcmp(argv[i], "-sleep") == 0) &&
(argv[i+1] && isdigit(argv[i+1][0])) ) {
SDL_Delay(atoi(argv[++i]));
printf("Delayed %d milliseconds\n", atoi(argv[i]));
} else {
PrintUsage(argv[0]);
SDL_CDClose(cdrom);
exit(1);
}
}
PrintStatus(drive, cdrom);
SDL_CDClose(cdrom);
return(0);
}