1 /*
2 * cdrom.mp3.c CD-ROM������MP3file����
3 *
4 * Copyright (C) 1997-1998 Masaki Chikama (Wren) <chikama@kasumi.ipl.mech.nagoya-u.ac.jp>
5 * 1998- <masaki-c@is.aist-nara.ac.jp>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 *
21 */
22 /* $Id: cdrom.mp3.c,v 1.24 2003/01/31 12:58:28 chikama Exp $ */
23
24 #include "config.h"
25
26 #include <stdio.h>
27 #include <stdlib.h>
28 #include <string.h>
29 #include <errno.h>
30 #include <unistd.h>
31 #include <signal.h>
32 #include <sys/types.h>
33 #include <sys/wait.h>
34 #include <glib.h>
35
36 #ifdef HAVE_LIBGEN_H
37 #include <libgen.h>
38 #else /* for FreeBSD 3.x ? */
39 #include "xpg_basename.c"
40 extern char *__xpg_basename __P ((char *__path));
41 #define basename(path) __xpg_basename (path)
42 #endif
43
44 #include "portab.h"
45 #include "system.h"
46 #include "counter.h"
47 #include "cdrom.h"
48 #include "music_server.h"
49 #include "music_pcm.h"
50
51 extern void sys_set_signalhandler(int SIG, void (*handler)(int));
52
53 /*
54 CPU�ѥ�����ޤäƤ��ޤäƤɤ����褦��ʤ��ͤ� :-)
55
56 �Ȥ���
57
58 1. �Ȥꤢ���� mpg123 �ʤɤ� �ץ쥤�䡼���Ѱդ��롣
59 esd ��Ȥ��������� Ver 0.59q �ʹߤ�����褦��
60 �ץ졼�䡼�ˤϤ��餫����ѥ����̤��Ƥ�����
61
62 2. % cat ~/game/kichiku.playlist
63 mpg123 -quite
64 $(HOME)/game/kichiku/mp3/trk02.mp3
65 $(HOME)/game/kichiku/mp3/trk03.mp3
66 $(HOME)/game/kichiku/mp3/trk04.mp3
67 $(HOME)/game/kichiku/mp3/trk05.mp3
68 $(HOME)/game/kichiku/mp3/trk06.mp3
69
70 �äƤʥե�������Ѱդ��롣( $(HOME)��Ŭ���ˤ����Ƥ� )
71 �����ܤϥץ졼�䡼�Ȥ��Υ��ץ����
72 �����ܰʹߤϥȥ�å��������˥ե������ʤ�٤�
73
74 �����ܤκǽ��ʸ���� - �ǻϤޤäƤ����� xsystem35 �� audio device ��
75 ������ (piped play mode) (ex. -mpg123 -quite)
76 player �κ����ե����ޥåȤ� 44kHz,16bit,Stereo�Τ�
77
78
79 3 configure �� --enable-cdrom=mp3 ���ɲä���
80
81 4 �¹Ի����ץ����� -devcd ~/game/kichiku.playlist �Τ褦�˾�Ǻ��������ե���������
82
83 */
84
85 static int cdrom_init(char *);
86 static int cdrom_exit();
87 static int cdrom_start(int);
88 static int cdrom_stop();
89 static int cdrom_getPlayingInfo(cd_time *);
90 static int cdrom_setVolumePipe(int vol);
91 static int cdrom_getVolumePipe();
92
93 #define cdrom cdrom_mp3
94 cdromdevice_t cdrom = {
95 cdrom_init,
96 cdrom_exit,
97 cdrom_start,
98 cdrom_stop,
99 cdrom_getPlayingInfo,
100 NULL,
101 NULL
102 };
103
104 #define PLAYLIST_MAX 256
105 #define WHITE " \t\n"
106 #define MAX_ARGS 512
107
108 static boolean enabled = FALSE;
109 static char mp3_player[256];
110 static int argc;
111 static char **argv;
112 static char *playlist[PLAYLIST_MAX];
113 static int lastindex; // �ǽ��ȥ�å��ֹ�
114 static pid_t cdpid; // �����ץ졼�䡼�� pid
115 static int trackno; // ���߱�����Υȥ�å�
116 static int counter; // ���ջ���¬���ѥ�����
117 static boolean pipedplay; // pipe play �⡼�ɤ��ɤ���
118
119 /*
120 �����ץ졼�䡼�ιԤβ���
121 1. �ǽ��ʸ���� - �Ǥ��ä���硢piped play mode
122 2. �ץ����Ȱ�����ʬΥ (!pipe)
123 3. �ץ���फ��ץ����̾(argv[0])��ʬΥ (!piped)
124 */
125
player_set(char * buf)126 static void player_set(char *buf) {
127 char *b;
128 int i, j;
129
130 if (buf[0] == '-') {
131 pipedplay = TRUE;
132 buf++;
133 } else {
134 pipedplay = FALSE;
135 }
136
137 strncpy(mp3_player, buf, sizeof(mp3_player));
138 b = mp3_player;
139
140 if (!pipedplay) {
141 /* count arguments */
142 /* devide argument */
143 char *tok_buf = NULL;
144 char *str_buf[MAX_ARGS]; //MAX_ARGS�ʾ�ΰ���������Ȥ���
145
146 memset(str_buf, 0, sizeof(char *) * MAX_ARGS);
147
148 i = 0;
149 str_buf[i] = strtok_r(b, WHITE, &tok_buf) ;
150
151 if (str_buf[i] == NULL) return;
152
153 while (str_buf[i] != NULL){
154 i++;
155 if (i >= MAX_ARGS){
156 return;
157 }
158 str_buf[i] = strtok_r(NULL, WHITE, &tok_buf);
159 }
160 argv = (char **)malloc(sizeof(char *) * (i + 2));
161
162 if (argv == NULL) return;
163
164 argc = i;
165
166 for (j = 0; j < i; j++) {
167 argv[j] = str_buf[j];
168 }
169 argv[i + 1] = NULL;
170
171 /* cut down argv[0] */
172 argv[0] = basename(argv[0]);
173 } else {
174 /*
175 pipe ���Ϥ��뤿��˥ե�����̾�θ�� - ��Ĥ���ɬ�פ�
176 ����ץ졼��Τ���ˡ��ե�����̾�� %s �ǻ���Ǥ���褦��
177 ���뤿��ν��� (by Fumihiko Murata)
178 */
179 int pf = FALSE;
180
181 b = mp3_player;
182 while (*b > 0x1f) {
183 if (*b == '%' && *(b + 1) == 's') pf = TRUE;
184 b++;
185 }
186 *b = 0;
187 if (!pf) strcat(b, " \"%s\""); // space ��ޤ�ѥ��ξ��
188 }
189 }
190
cdrom_init(char * config_file)191 static int cdrom_init(char *config_file) {
192 FILE *fp;
193 char lbuf[256];
194 int lcnt = 0;
195 char *s;
196
197 if (NULL == (fp = fopen(config_file, "rt"))) return NG;
198 fgets(lbuf, sizeof(lbuf), fp); lcnt++;
199
200 player_set(lbuf);
201
202 while (TRUE) {
203 if (++lcnt >= (PLAYLIST_MAX +2)) {
204 break;
205 }
206 if (!fgets(lbuf, sizeof(lbuf) -1, fp)) {
207 if (feof(fp)) {
208 break;
209 } else {
210 perror("fgets()");
211 fclose(fp);
212 return NG;
213 }
214 }
215 if (NULL == (playlist[lcnt -2] = malloc(strlen(lbuf) + 1))) {
216 fclose(fp);
217 return NG;
218 }
219 s = lbuf;
220 while (*s != '\n' && *s != 0) s++;
221 if (*s == '\n') *s=0;
222 strcpy(playlist[lcnt - 2], lbuf);
223 }
224 lastindex = lcnt -1;
225 fclose(fp);
226
227 trackno = 0;
228 prv.cd_maxtrk = lastindex;
229
230 reset_counter_high(SYSTEMCOUNTER_MP3, 10, 0);
231 enabled = TRUE;
232
233 if (pipedplay) {
234 cdrom_mp3.setvol = cdrom_setVolumePipe;
235 cdrom_mp3.getvol = cdrom_getVolumePipe;
236 NOTICE("cdrom mp3 piped play mode\n");
237 } else {
238 NOTICE("cdrom mp3 external player mode\n");
239 }
240
241 return OK;
242 }
243
cdrom_exit()244 static int cdrom_exit() {
245 if (enabled) {
246 cdrom_stop();
247 }
248 return OK;
249 }
250
251 /* �ȥ�å��ֹ� trk �α��� trk = 1~ */
cdrom_start(int trk)252 static int cdrom_start(int trk) {
253 char cmd_pipe[256];
254 pid_t pid;
255
256 if (!enabled) return 0;
257
258 /* �ʿ�����¿��������Բ�*/
259 if (trk > lastindex) {
260 return NG;
261 }
262
263 if (pipedplay) {
264 g_snprintf(cmd_pipe, sizeof(cmd_pipe) -1, mp3_player, playlist[trk -2]);
265 if (-1 == muspcm_load_pipe(SLOT_CDROMPIPE, cmd_pipe)) {
266 return NG;
267 }
268 muspcm_start(SLOT_CDROMPIPE, 1);
269 pid = 1; // dummy
270 } else {
271 argv[argc] = playlist[trk -2];
272 argv[argc +1] = NULL;
273 pid = fork();
274 if (pid == 0) {
275 /* child process */
276 pid_t mine = getpid();
277 setpgid(mine, mine);
278 sys_set_signalhandler(SIGTERM, SIG_DFL);
279 execvp(mp3_player, argv);
280 perror("execvp");
281 _exit(-1);
282 } else if (pid < 0) {
283 WARNING("fork failed");
284 return NG;
285 }
286 }
287
288 cdpid = pid;
289 trackno = trk;
290 counter = get_high_counter(SYSTEMCOUNTER_MP3);
291
292 return OK;
293 }
294
295 /* ������� */
cdrom_stop()296 static int cdrom_stop() {
297 if (!enabled || cdpid == 0) {
298 return OK;
299 }
300
301 if (!pipedplay) {
302 int status = 0;
303 kill(cdpid, SIGTERM);
304 killpg(cdpid, SIGTERM);
305 while (0 >= waitpid(cdpid, &status, WNOHANG));
306 } else {
307 muspcm_stop(SLOT_CDROMPIPE);
308 }
309
310 cdpid = 0;
311 trackno = 0;
312
313 return OK;
314 }
315
316 /* ���߱�����Υȥ�å�����μ��� */
cdrom_getPlayingInfo(cd_time * inf)317 static int cdrom_getPlayingInfo (cd_time *inf) {
318 int status, cnt, err;
319
320 if (!enabled || cdpid == 0) {
321 goto errout;
322 }
323
324 if (pipedplay) {
325 cnt = muspcm_getpos(SLOT_CDROMPIPE);
326 if (cnt == 0) {
327 goto errout;
328 }
329 cnt /= 10;
330 } else {
331 if (cdpid == (err = waitpid(cdpid, &status, WNOHANG))) {
332 cdpid = 0;
333 goto errout;
334 }
335 cnt = get_high_counter(SYSTEMCOUNTER_MP3) - counter;
336 }
337
338 inf->t = trackno;
339 inf->m = cnt / (60*100); cnt %= (60*100);
340 inf->s = cnt / 100; cnt %= 100;
341 inf->f = (cnt * CD_FPS) / 100;
342
343 return OK;
344
345 errout:
346 inf->t = inf->m = inf->s = inf->f = 999;
347 return NG;
348 }
349
cdrom_setVolumePipe(int vol)350 static int cdrom_setVolumePipe(int vol) {
351 if (prv.pcm[SLOT_CDROMPIPE] != NULL) {
352 prv.pcm[SLOT_CDROMPIPE]->vollv = vol;
353 }
354 return OK;
355 }
356
cdrom_getVolumePipe()357 static int cdrom_getVolumePipe() {
358 if (prv.pcm[SLOT_CDROMPIPE] != NULL) {
359 return prv.pcm[SLOT_CDROMPIPE]->vollv;
360 }
361 return 100;
362 }
363