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