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/* This file is part of the KDE project.
Copyright (C) 2007 Trolltech ASA. All rights reserved.
This library is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 2.1 or 3 of the License.
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, see <http://www.gnu.org/licenses/>.
*/
#include "backendheader.h"
#include "quicktimestreamreader.h"
QT_BEGIN_NAMESPACE
namespace Phonon
{
namespace QT7
{
// Defined in quicktimestreamreader_objc.m:
void *QuickTimeStreamReader_createMovieFromBufferGuessType(QByteArray &buffer);
Movie QuickTimeStreamReader_convertToQuickTime(void *qtmovie);
void QuickTimeStreamReader_release(void *movie);
QuickTimeStreamReader::QuickTimeStreamReader(const Phonon::MediaSource &source)
{
connectToSource(source);
// Regretfully, I need to load the whole movie into memory
// before I can tell QuickTime to play it. (whish
// kQTDataLocationPropertyID_MovieUserProc worked...)
if(!readAllDataIntoBuffer())
return;
m_QTMovieRef = QuickTimeStreamReader_createMovieFromBufferGuessType(m_buffer);
}
QuickTimeStreamReader::~QuickTimeStreamReader()
{
if (m_QTMovieRef)
QuickTimeStreamReader_release(m_QTMovieRef);
}
bool QuickTimeStreamReader::readAllDataIntoBuffer()
{
int oldSize = m_buffer.size();
while (m_buffer.size() < m_size){
needData();
if (oldSize == currentBufferSize())
BACKEND_ASSERT3(oldSize != currentBufferSize(),
"Could not create new movie from IO stream. Not enough free memory to preload the whole movie.",
FATAL_ERROR, false)
oldSize = m_buffer.size();
}
return true;
}
Movie QuickTimeStreamReader::movieRef()
{
return QuickTimeStreamReader_convertToQuickTime(m_QTMovieRef);
}
int QuickTimeStreamReader::readData(long offset, long size, void *data)
{
// QReadLocker readLocker(&m_lock);
if (streamSize() != 1 && offset + size > streamSize()){
size = streamSize() - offset;
}
if (currentPos() - currentBufferSize() != offset)
setCurrentPos(offset);
int oldSize = currentBufferSize();
while (currentBufferSize() < int(size)) {
needData();
if (oldSize == currentBufferSize())
break;
oldSize = currentBufferSize();
}
int bytesRead = qMin(currentBufferSize(), int(size));
// QWriteLocker writeLocker(&m_lock);
qMemCopy(data, m_buffer.data(), bytesRead);
m_buffer = m_buffer.mid(bytesRead);
return bytesRead;
}
void QuickTimeStreamReader::writeData(const QByteArray &data)
{
QWriteLocker locker(&m_lock);
m_pos += data.size();
m_buffer += data;
}
void QuickTimeStreamReader::endOfData()
{
}
void QuickTimeStreamReader::setStreamSize(qint64 newSize)
{
m_size = newSize;
}
qint64 QuickTimeStreamReader::streamSize() const
{
return m_size;
}
void QuickTimeStreamReader::setStreamSeekable(bool s)
{
m_seekable = s;
}
bool QuickTimeStreamReader::streamSeekable() const
{
return m_seekable;
}
void QuickTimeStreamReader::setCurrentPos(qint64 pos)
{
QWriteLocker locker(&m_lock);
m_pos = pos;
seekStream(pos);
m_buffer.clear();
}
qint64 QuickTimeStreamReader::currentPos() const
{
return m_pos;
}
int QuickTimeStreamReader::currentBufferSize() const
{
QReadLocker locker(&m_lock);
return m_buffer.size();
}
}} //namespace Phonon::QT7
QT_END_NAMESPACE
#include "moc_quicktimestreamreader.cpp"
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