mcd.c

mcdp 是一个的型的Linux下的CD播放器

/*
 * Author strongly advices against using this code, or a part of it,
 * in an application designed to run on any Microsoft(tm) platform.
 *
 * See doc/README for more information about COPYING terms.
 */
#include "mcd.h"

short pluskey=0;  /* 0..9|X is played */
short updates[4]; /* see mcd.h */

int main(int argc, char **argv, char **environ) {
 struct mcd *cd=malloc(sizeof(struct mcd));
 int quit=0;
 char ch;

 if (argc>1) quit=cd_init(argv[1],&cd[0]);
 else { /* try default stuff */
  if ((argv[1]=getenv("CDROM"))!=NULL) { /* env */
   quit=cd_init(argv[1],&cd[0]);
  } else {
   quit=cd_init(CDROM_DEFAULT,&cd[0]); /* params.h */
  }
 }
 if (quit<0) {
  mesg(1,"Sorry, your disc isn't a Mixed-CD or Audio-CD !\n");
  exit(2);
 }

 tty_mode(TERM_INIT);
 signal(SIGINT,mcd_quit);
 signal(SIGQUIT,mcd_quit);
 signal(SIGTERM,mcd_quit);

 updates[U_ALL]=1;
 while (!quit) {
  draw_updatescr(&cd[0]);
  if (1 == select_wait(0,1)) {
   read(0,&ch,1);
   switch (ch) {
   case '\033':
    read(0,&ch,1);read(0,&ch,1); /* XXX - should be done in another way ? */
    switch(ch) {
     case 'A': cd_skip(&cd[0], FW_FAST);break; /* c_up */
     case 'B': cd_skip(&cd[0],-RW_FAST);break; /* c_down */
     case 'C': cd_skip(&cd[0], FW_SLOW);break; /* c_left */
     case 'D': cd_skip(&cd[0],-RW_SLOW);break; /* c_right */
    }
    break;
   case ' ': /* next */
    cd->title[0]++;cd_start(&cd[0]);
    updates[U_TRACKS]=1;
    break;
   case 'b': /* previous */
   case 'B':
    cd->title[0]--;cd_start(&cd[0]);
    updates[U_TRACKS]=1;
    break;
   case 'r':
   case 'R':
    updates[U_ALL]=1;
    break;
   case 'm':
    if (cd->method<M_INTRO) cd->method++;
    else cd->method=M_PLAY_CD;
    updates[U_TRACKS]=updates[U_METHOD]=1;
    break;
   case 'M':
    if (cd->method>M_PLAY_CD) cd->method--;
    else cd->method=M_INTRO;
    updates[U_METHOD]=1;
    break;
   case 'P':
   case 'p':
    cd_pauseresume(&cd[0]);
    updates[U_STATUS]=1;
    break;
   case 'S':
   case 's':
    if (cd->status==CDROM_AUDIO_PLAY) {
     cd_stop(&cd[0]);
    } else {
     cd->title[0]=1;
     cd_start(&cd[0]);
    }
    updates[U_STATUS]=updates[U_TRACKS]=1;
    break;
   case 'E':
   case 'e':
    cd_eject(&cd->fd);
    updates[U_ALL]=1;
    break;
   case 'C':
   case 'c':
    cd_close(&cd->fd);
    updates[U_ALL]=1;
    break;
   case '?':
   case 'H':
   case 'h':
    system("man mcd");
    break;
   case '+':
    pluskey=(pluskey<9)?++pluskey:0;
    updates[U_TRACKS]=1;
    break;
   case '-':
    pluskey=(pluskey>0)?--pluskey:9;
    updates[U_TRACKS]=1;
    break;
   case '<':
    cd->vol.channel0=cd->vol.channel1=cd->vol.channel2=cd->vol.channel3=
     (cd->vol.channel0>0)?cd->vol.channel0-=3:255;
    if (ioctl(cd->fd,CDROMVOLCTRL,&cd->vol)<0)
     draw_status("error: setting volume",1);
    updates[U_VOLUME]=1;
    break;
   case '>':
    cd->vol.channel0=cd->vol.channel1=cd->vol.channel2=cd->vol.channel3=
     (cd->vol.channel0<255)?cd->vol.channel0+=3:0;
    if (ioctl(cd->fd,CDROMVOLCTRL,&cd->vol)<0)
     draw_status("error: setting volume",1);
    updates[U_VOLUME]=1;
    break;
   case 'q':
   case 'Q':
    quit=1;
    break;
   case '0':
    if (!pluskey && !((int)ch-48)) {
     draw_status("hey, this isn't valid!",1);
     break;
    }
   case '1': case '2': case '3': case '4': case '5': case '6':
   case '7': case '8': case '9':
    if ((pluskey*10)+((int)ch-48)>cd->title[1] || (pluskey*10)+((int)ch-48)<1) break;
    else {
     cd->title[0]=((pluskey*10)+((int)ch-48));
     cd_start(&cd[0]);
     updates[U_TRACKS]=1;
    }
    break;
   } /* switch */
  } /* select */
 } /* while */
 mcd_quit(1); /* cleanup */
 exit(0);
}

void mcd_quit(int i) {
 show1(T_NORMAL T_HOME T_CLEAR T_BOLD "ByeBye...\n\n" T_NORMAL);
 tty_mode(TERM_QUIT);
}