void close_audio(void)
{
if (A_AUDIO_PLAY)
{
if (AUDIO_BUFFER_SIZE!=0)
audioBufferClose();
else
audioClose();
}
}
int decodeMPEG_2(int inFilefd)
{
struct AUDIO_HEADER header;
int cnt,g,err=0;
TControlMsg message;
if ((in_file=fdopen(inFilefd,"r"))==NULL) {
return(1);
}
append=data=nch=0; /* initialize globals */
GUI_STOPPED = FALSE;
GUI_PLAYING = TRUE;
GUI_FD_TO_PLAY = -1;
for (cnt=0;;cnt++) {
if ((g=gethdr(&header))!=0) {
switch (g) {
case GETHDR_ERR: die("error reading mpeg bitstream. exiting.\n");
break;
case GETHDR_NS : warn("this is a file in MPEG 2.5 format, which is not defined\n");
warn("by ISO/MPEG. It is \"a special Fraunhofer format\".\n");
warn("amp does not support this format. sorry.\n");
break;
case GETHDR_FL1: warn("ISO/MPEG layer 1 is not supported by amp (yet).\n");
break;
case GETHDR_FF : warn("free format bitstreams are not supported. sorry.\n");
break;
case GETHDR_SYN: warn("oops, we're out of sync.\n");
break;
default:
}
break;
}
if (!(cnt%10)){
GUIstatusDisplay(cnt);
}
if(get_msg(&message) >= 0)
{
int pflag = 0;
cnt = parse_msg(&message,&header,cnt);
if (GUI_PAUSE) {
int flags;
pflag = 1;
#if 0
/* Set stdin to blocking */
if((flags = fcntl(STDIN_FILENO, F_GETFL, 0)) < 0)
perror("fcntl");
flags ^= O_NONBLOCK;
if(fcntl(STDIN_FILENO, F_SETFL, flags) < 0)
perror("fcntl");
#endif
}
while(GUI_PAUSE){
if(get_msg(&message) >= 0)
cnt = parse_msg(&message,&header,cnt);
}
if (pflag) {
int flags;
/* Set stdin to non-blocking */
#if 0
if((flags = fcntl(STDIN_FILENO, F_GETFL, 0)) < 0)
perror("fcntl");
flags |= O_NONBLOCK;
if(fcntl(STDIN_FILENO, F_SETFL, flags) < 0)
perror("fcntl");
#endif
}
if (GUI_STOP || (GUI_FD_TO_PLAY != -1)){
break;
}
}
/* crc is read just to get out of the way.
*/
if (header.protection_bit==0) getcrc();
if (!cnt && A_AUDIO_PLAY) { /* setup the audio when we have the frame info */
if (AUDIO_BUFFER_SIZE==0)
audioOpen(t_sampling_frequency[header.ID][header.sampling_frequency],
(header.mode!=3),
A_SET_VOLUME);
else
audioBufferOpen(t_sampling_frequency[header.ID][header.sampling_frequency],(header.mode!=3),A_SET_VOLUME);
}
if (layer3_frame(&header,cnt)) {
warn(" error. blip.\n");
err=1;
break;
}
}
fclose(in_file);
if (A_AUDIO_PLAY)
if (AUDIO_BUFFER_SIZE!=0)
audioBufferClose();
else
audioClose();
else
fclose(out_file);
if (!(GUI_STOP) && (GUI_FD_TO_PLAY == -1)) {
/* We've reached the end of the track, notify the jukebox...
*/
TControlMsg rmsg;
rmsg.type = MSG_NEXT;
rmsg.data = 0;
send_msg(&rmsg, TRUE);
}
GUI_STOPPED = TRUE;
GUI_PLAYING = FALSE;
return(err);
}
