Clementine-audio-player-Mac.../3rdparty/taglib/mpeg/id3v2/frames/eventtimingcodesframe.cpp

145 lines
4.6 KiB
C++

/***************************************************************************
copyright : (C) 2014 by Urs Fleisch
email : ufleisch@users.sourceforge.net
***************************************************************************/
/***************************************************************************
* This library is free software; you can redistribute it and/or modify *
* it under the terms of the GNU Lesser General Public License version *
* 2.1 as published by the Free Software Foundation. *
* *
* This library is distributed in the hope that it will be useful, but *
* WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
* Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser General Public *
* License along with this library; if not, write to the Free Software *
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA *
* 02110-1301 USA *
* *
* Alternatively, this file is available under the Mozilla Public *
* License Version 1.1. You may obtain a copy of the License at *
* http://www.mozilla.org/MPL/ *
***************************************************************************/
#include "eventtimingcodesframe.h"
#include <tbytevectorlist.h>
#include <id3v2tag.h>
#include <tdebug.h>
#include <tpropertymap.h>
using namespace TagLib;
using namespace ID3v2;
class EventTimingCodesFrame::EventTimingCodesFramePrivate
{
public:
EventTimingCodesFramePrivate() :
timestampFormat(EventTimingCodesFrame::AbsoluteMilliseconds) {}
EventTimingCodesFrame::TimestampFormat timestampFormat;
EventTimingCodesFrame::SynchedEventList synchedEvents;
};
////////////////////////////////////////////////////////////////////////////////
// public members
////////////////////////////////////////////////////////////////////////////////
EventTimingCodesFrame::EventTimingCodesFrame() :
Frame("ETCO"),
d(new EventTimingCodesFramePrivate())
{
}
EventTimingCodesFrame::EventTimingCodesFrame(const ByteVector &data) :
Frame(data),
d(new EventTimingCodesFramePrivate())
{
setData(data);
}
EventTimingCodesFrame::~EventTimingCodesFrame()
{
delete d;
}
String EventTimingCodesFrame::toString() const
{
return String();
}
EventTimingCodesFrame::TimestampFormat
EventTimingCodesFrame::timestampFormat() const
{
return d->timestampFormat;
}
EventTimingCodesFrame::SynchedEventList
EventTimingCodesFrame::synchedEvents() const
{
return d->synchedEvents;
}
void EventTimingCodesFrame::setTimestampFormat(
EventTimingCodesFrame::TimestampFormat f)
{
d->timestampFormat = f;
}
void EventTimingCodesFrame::setSynchedEvents(
const EventTimingCodesFrame::SynchedEventList &e)
{
d->synchedEvents = e;
}
////////////////////////////////////////////////////////////////////////////////
// protected members
////////////////////////////////////////////////////////////////////////////////
void EventTimingCodesFrame::parseFields(const ByteVector &data)
{
const int end = data.size();
if(end < 1) {
debug("An event timing codes frame must contain at least 1 byte.");
return;
}
d->timestampFormat = TimestampFormat(data[0]);
int pos = 1;
d->synchedEvents.clear();
while(pos + 4 < end) {
EventType type = static_cast<EventType>(static_cast<unsigned char>(data[pos++]));
unsigned int time = data.toUInt(pos, true);
pos += 4;
d->synchedEvents.append(SynchedEvent(time, type));
}
}
ByteVector EventTimingCodesFrame::renderFields() const
{
ByteVector v;
v.append(char(d->timestampFormat));
for(SynchedEventList::ConstIterator it = d->synchedEvents.begin();
it != d->synchedEvents.end();
++it) {
const SynchedEvent &entry = *it;
v.append(char(entry.type));
v.append(ByteVector::fromUInt(entry.time));
}
return v;
}
////////////////////////////////////////////////////////////////////////////////
// private members
////////////////////////////////////////////////////////////////////////////////
EventTimingCodesFrame::EventTimingCodesFrame(const ByteVector &data, Header *h) :
Frame(h),
d(new EventTimingCodesFramePrivate())
{
parseFields(fieldData(data));
}