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//=========================================================
// MusE
// Linux Music Editor
// $Id: waveevent.cpp,v 1.9.2.6 2009/12/20 05:00:35 terminator356 Exp $
//
// (C) Copyright 2000-2003 Werner Schweer (ws@seh.de)
//=========================================================
#include "globals.h"
#include "event.h"
#include "waveevent.h"
#include "xml.h"
#include "wave.h"
#include <iostream>
// Added by Tim. p3.3.18
//#define WAVEEVENT_DEBUG
//#define USE_SAMPLERATE
//---------------------------------------------------------
// WaveEvent
//---------------------------------------------------------
WaveEventBase::WaveEventBase(EventType t)
: EventBase(t)
{
deleted = false;
}
//---------------------------------------------------------
// WaveEvent::mid
//---------------------------------------------------------
EventBase* WaveEventBase::mid(unsigned b, unsigned e)
{
WaveEventBase* ev = new WaveEventBase(*this);
unsigned fr = frame();
unsigned start = fr - b;
if(b > fr)
{
start = 0;
ev->setSpos(spos() + b - fr);
}
unsigned end = endFrame();
if (e < end)
end = e;
ev->setFrame(start);
ev->setLenFrame(end - b - start);
return ev;
}
//---------------------------------------------------------
// dump
//---------------------------------------------------------
void WaveEventBase::dump(int n) const
{
EventBase::dump(n);
}
//---------------------------------------------------------
// WaveEventBase::read
//---------------------------------------------------------
void WaveEventBase::read(Xml& xml)
{
for (;;) {
Xml::Token token = xml.parse();
const QString& tag = xml.s1();
switch (token) {
case Xml::Error:
case Xml::End:
case Xml::Attribut:
return;
case Xml::TagStart:
if (tag == "poslen")
PosLen::read(xml, "poslen");
else if (tag == "frame")
_spos = xml.parseInt();
else if (tag == "file") {
SndFile* wf = getWave(xml.parse1(), true);
if (wf) {
f = SndFileR(wf);
}
}
else
xml.unknown("Event");
break;
case Xml::TagEnd:
if (tag == "event") {
Pos::setType(FRAMES); // DEBUG
return;
}
default:
break;
}
}
}
//---------------------------------------------------------
// write
//---------------------------------------------------------
//void WaveEventBase::write(int level, Xml& xml, const Pos& offset) const
void WaveEventBase::write(int level, Xml& xml, const Pos& offset, bool forcePath) const
{
if (f.isNull())
return;
xml.tag(level++, "event");
PosLen wpos(*this);
wpos += offset;
// if (offset)
// wpos.setTick(wpos.tick() + offset);
wpos.write(level, xml, "poslen");
xml.intTag(level, "frame", _spos); // offset in wave file
//
// waves in the project dirctory are stored
// with relative path name, others with absolute path
//
QString path = f.dirPath();
//if (path.contains(museProject)) {
if (!forcePath && path.contains(museProject)) {
// extract museProject.
QString newName = f.path().remove(museProject+"/");
xml.strTag(level, "file", newName);
}
else
xml.strTag(level, "file", f.path());
xml.etag(level, "event");
}
//void WaveEventBase::read(unsigned offset, float** buffer, int channel, int n, bool overwrite)
void WaveEventBase::readAudio(unsigned offset, float** buffer, int channel, int n, bool doSeek, bool overwrite)
{
// Added by Tim. p3.3.17
#ifdef WAVEEVENT_DEBUG
printf("WaveEventBase::readAudio offset:%u channel:%d n:%d\n", offset, channel, n);
#endif
if (f.isNull())
return;
// Changed by Tim. p3.3.18
// FIXME: Removed until resampling is enabled.
#ifdef USE_SAMPLERATE
if(doSeek)
#endif
f.seek(offset + _spos, 0);
f.read(channel, buffer, n, overwrite);
}
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