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