void MediaDownload::requestReady(unsigned fileSize)
{
/* This may happen multiple times, with new requests, and the file size
* may change as a result (for active events) */
QMutexLocker l(&m_bufferLock);
bool emitSizeChanged = false;
if (fileSize > m_fileSize)
{
m_fileSize = fileSize;
emitSizeChanged = true;
Q_ASSERT(m_bufferFile.isOpen());
if (!m_bufferFile.resize(m_fileSize))
{
sendError(QLatin1String("Buffer resize failed: ") + m_bufferFile.errorString());
return;
}
}
l.unlock();
if (emitSizeChanged)
emit fileSizeChanged(fileSize);
}
void Transfer::setFileSize(quint64 fileSize)
{
if (_fileSize != fileSize) {
_fileSize = fileSize;
SYNC(ARG(fileSize));
emit fileSizeChanged(fileSize);
}
}
bool VideoHttpBuffer::startBuffering()
{
Q_ASSERT(!media);
media = bcApp->mediaDownloadManager()->acquireMediaDownload(m_url);
connect(media, SIGNAL(fileSizeChanged(uint)), SLOT(fileSizeChanged(uint)), Qt::DirectConnection);
connect(media, SIGNAL(finished()), SIGNAL(bufferingFinished()));
connect(media, SIGNAL(stopped()), SIGNAL(bufferingStopped()));
connect(media, SIGNAL(error(QString)), SLOT(sendStreamError(QString)));
media->start();
qDebug("VideoHttpBuffer: started");
emit bufferingStarted();
return true;
}
void MediaDownload::incomingData(const QByteArray &data, unsigned position)
{
QMutexLocker l(&m_bufferLock);
bool emitFileSize = false;
if (position+data.size() > m_fileSize)
{
qDebug() << "MediaDownload: file size is less than write position, adjusting size";
m_fileSize = position + data.size();
if (!m_bufferFile.resize(m_fileSize))
{
sendError(QLatin1String("Buffering failed: ") + m_bufferFile.errorString());
return;
}
emitFileSize = true;
}
Q_ASSERT(m_bufferFile.size() == m_fileSize);
if (!m_bufferFile.seek(position))
{
sendError(QLatin1String("Buffer write failed: ") + m_bufferFile.errorString());
return;
}
qint64 re = m_bufferFile.write(data);
if (re < 0)
{
sendError(QLatin1String("Buffer write failed: ") + m_bufferFile.errorString());
return;
}
if (!m_bufferFile.flush())
qDebug() << "MediaDownload: Buffer flush after write failed (non-critical):" << m_bufferFile.errorString();
Q_ASSERT(re == data.size());
m_bufferRanges.insert(Range::fromStartSize(position, re));
if (m_writePos == position)
m_writePos += re;
m_downloadedSize += re;
l.unlock();
if (emitFileSize)
emit fileSizeChanged(m_fileSize);
m_bufferWait.wakeAll();
}
