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/*
reads raw input data from cdrom (system dependent)
Copyright (C) 1999 Martin Vogt
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Library General Public License as published by
the Free Software Foundation.
For more information look at the file COPYRIGHT in this package
*/
#include <iostream>
#include "cdromRawAccess.h"
using namespace std;
CDRomRawAccess::CDRomRawAccess(CDRomToc* cdromToc) {
cdfile=NULL;
lOpen=false;
leof=true;
this->cdromToc=cdromToc;
lData=false;
dataStart=0;
len=0;
}
CDRomRawAccess::~CDRomRawAccess() {
close();
}
char* CDRomRawAccess::getBufferStart() {
return (char*)(data+dataStart);
}
int CDRomRawAccess::getBufferLen() {
if (eof()) {
return 0;
}
return len;
}
int CDRomRawAccess::open(const char* filename) {
if (isOpen()) {
close();
}
if (filename==NULL) {
filename=(char*)"/dev/cdrom";
}
if (strlen(filename) <= 1) {
filename="/dev/cdrom";
}
const char* openfile=strchr(filename,'/');
cout << "openfile:"<<openfile<<endl;
cdfile=fopen(openfile, "rb");
lOpen=false;
if (cdfile == NULL) {
perror("open CDRomRawAccess");
} else {
lOpen=true;
leof=false;
}
return lOpen;
}
int CDRomRawAccess::eof() {
return leof;
}
int CDRomRawAccess::read(int minute,int second, int frame) {
if (isOpen()==false) {
cerr << "CDRomRawAccess not open"<<endl;
return false;
}
int lInRange=cdromToc->isInRange(minute,second,frame);
if (lInRange == false) {
if (minute*60+second+1 > cdromToc->getEndSecond()) {
leof=true;
}
return false;
}
return readDirect(minute,second,frame);
}
void CDRomRawAccess::close() {
if (isOpen()) {
fclose(cdfile);
lOpen=false;
leof=true;
}
}
int CDRomRawAccess::isData() {
return lData;
}
int CDRomRawAccess::isOpen() {
return lOpen;
}
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