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/* MPEG Sound library
(C) 1997 by Jung woo-jae */
// Fileplayer.cc
// It's an example for how to use MPEG Sound library
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <iostream>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include "mpegsound.h"
using namespace std;
// File player superclass
Fileplayer::Fileplayer()
{
__errorcode=SOUND_ERROR_OK;
player=NULL;
};
Fileplayer::~Fileplayer()
{
delete player;
};
// Mpegfileplayer
Mpegfileplayer::Mpegfileplayer()
{
loader=NULL;
server=NULL;
};
Mpegfileplayer::~Mpegfileplayer()
{
if(loader)delete loader;
if(server)delete server;
}
bool Mpegfileplayer::openfile(char *filename,const char *device)
{
// Player
if(device==NULL){
int fd;
device="/dev/sound/dsp";
fd=open(device, O_WRONLY|O_NDELAY);
if( fd == -1 ) {
device="/dev/dsp";
fd=open(device, O_WRONLY|O_NDELAY);
}
if ( fd == -1 ) {
cerr << "Cannot open /dev/dsp or /dev/sound/dsp!" << endl;
return seterrorcode(SOUND_ERROR_DEVOPENFAIL);
}
close(fd);
}
if(device[0]=='/')player=new Rawplayer;
else
{
if(device[0]=='-')device=NULL;
player=new Rawtofile;
}
if(player==NULL)
return seterrorcode(SOUND_ERROR_MEMORYNOTENOUGH);
if(!player->initialize(device))
return seterrorcode(player->geterrorcode());
// Loader
{
int err;
if((loader=Soundinputstream::hopen(filename,&err))==NULL)
return seterrorcode(err);
}
// Server
if((server=new Mpegtoraw(loader,player))==NULL)
return seterrorcode(SOUND_ERROR_MEMORYNOTENOUGH);
// Initialize server
server->initialize(filename);
return true;
}
void Mpegfileplayer::setforcetomono(bool flag)
{
server->setforcetomono(flag);
};
void Mpegfileplayer::setdownfrequency(int value)
{
server->setdownfrequency(value);
};
#include <math.h>
char * tominsec(double s)
{
int min=int(floor(s/60));
double sec=s-60*min;
char * buff = new char[15];
sprintf(buff,"%d:%2.2f",min,sec);
return buff;
}
bool Mpegfileplayer::playing(int verbose, bool frameinfo, int startframe)
{
if(!server->run(-1))return false; // Initialize MPEG Layer 3
if(verbose>0)showverbose(verbose);
if (startframe) server->setframe(startframe);
int pcmperframe=server->getpcmperframe();
int frequency=server->getfrequency();
int totframes=server->gettotalframe();
double tottime=1.0*totframes*pcmperframe/frequency;
if(frameinfo) {
cout << "Totalframes " << totframes;
cout << "; Totaltime " << tominsec(tottime) << endl;
}
// Playing
while (server->run(100)) {
if(frameinfo) {
int currframe=server-> getcurrentframe();
double currtime=1.0*currframe*pcmperframe/frequency;
cout << "Frame " << currframe << " [" << totframes-currframe << "]; ";
cout << "Time " << tominsec(currtime) << " [" ;
cout << tominsec(tottime-currtime) << "]" << endl ;
}
}
seterrorcode(server->geterrorcode());
if(seterrorcode(SOUND_ERROR_FINISH))return true;
return false;
}
#ifdef PTHREADEDMPEG
bool Mpegfileplayer::playingwiththread(int verbose,bool frameinfo,
int framenumbers, int startframe)
{
if(framenumbers<20)return playing(verbose,frameinfo,startframe);
server->makethreadedplayer(framenumbers);
if(!server->run(-1))return false; // Initialize MPEG Layer 3
if(verbose>0)showverbose(verbose);
if (startframe) server->setframe(startframe);
int pcmperframe=server->getpcmperframe();
int frequency=server->getfrequency();
int totframes=server->gettotalframe();
double tottime=1.0*totframes*pcmperframe/frequency;
if(frameinfo) {
cout << "Totalframes " << totframes;
cout << "; Totaltime " << tominsec(tottime) << endl;
}
// Playing
while (server->run(100)) {
if(frameinfo) {
int currframe=server-> getcurrentframe();
double currtime=1.0*currframe*pcmperframe/frequency;
cout << "Frame " << currframe << " [" << totframes-currframe << "]; ";
cout << "Time " << tominsec(currtime) << " [" ;
cout << tominsec(tottime-currtime) << "]" << endl ;
}
}
server->freethreadedplayer();
seterrorcode(server->geterrorcode());
if(seterrorcode(SOUND_ERROR_FINISH))return true;
return false;
}
#endif
void Mpegfileplayer::showverbose(int )
{
static const char *modestring[4]={"stereo","joint stereo","dual channel","mono"};
fprintf(stderr,"\tMPEG-%d Layer %d, %s,\n\t%dHz%s, %dkbit/s, ",
server->getversion()+1,
server->getlayer(),modestring[server->getmode()],
server->getfrequency(),server->getdownfrequency()?"//2":"",
server->getbitrate());
fprintf(stderr,server->getcrccheck()
? "with crc check\n"
: "without crc check\n");
}
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