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/***************************************************** vim:set ts=4 sw=4 sts=4:
Player Object for playing synthesized audio files. Plays them
synchronously.
-------------------
Copyright:
(C) 2004 by Gary Cramblitt <garycramblitt@comcast.net>
-------------------
Original author: Gary Cramblitt <garycramblitt@comcast.net>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
******************************************************************************/
// Qt includes.
#include <qfile.h>
// KDE includes.
#include <kapplication.h>
#include <ktempfile.h>
#include <kstandarddirs.h>
#include <kparts/componentfactory.h>
#include <ktrader.h>
#include <kdebug.h>
// KTTS includes.
#include "player.h"
#include "stretcher.h"
#include "pluginconf.h"
// TestPlayer includes.
#include "testplayer.h"
/**
* Constructor.
*/
TestPlayer::TestPlayer(QObject *parent, const char *name,
const int playerOption, const float audioStretchFactor, const QString &sinkName) :
QObject(parent, name)
{
m_playerOption = playerOption;
m_audioStretchFactor = audioStretchFactor;
m_stretcher = 0;
m_player = 0;
m_sinkName = sinkName;
}
/**
* Destructor.
*/
TestPlayer::~TestPlayer()
{
delete m_stretcher;
delete m_player;
}
/**
* Sets which audio player to use.
* 0 = aRts
* 1 = gstreamer
* 2 = ALSA
* 3 = aKode
*/
void TestPlayer::setPlayerOption(const int playerOption) { m_playerOption = playerOption; }
/**
* Sets the audio stretch factor (Speed adjustment).
* 1.0 = normal
* 0.5 = twice as fast
* 2.0 = twice as slow
*/
void TestPlayer::setAudioStretchFactor(const float audioStretchFactor)
{ m_audioStretchFactor = audioStretchFactor; }
void TestPlayer::setSinkName(const QString &sinkName) { m_sinkName = sinkName; }
/**
* Plays the specifified audio file and waits for completion.
* The audio file speed is adjusted according to the stretch factor.
* @param waveFile Name of the audio file to play.
*/
void TestPlayer::play(const QString &waveFile)
{
// kdDebug() << "TestPlayer::play: running" << endl;
// Create a Stretcher object to adjust the audio Speed.
QString playFile = waveFile;
QString tmpFile;
if (m_audioStretchFactor != 1.0)
{
tmpFile = makeSuggestedFilename();
// kdDebug() << "TestPlayer::play: stretching file " << playFile << " by " << m_audioStretchFactor
// << " to file " << tmpFile << endl;
m_stretcher = new Stretcher();
if (m_stretcher->stretch(playFile, tmpFile, m_audioStretchFactor))
{
while (m_stretcher->getState() != Stretcher::ssFinished) qApp->processEvents();
playFile = m_stretcher->getOutFilename();
}
delete m_stretcher;
m_stretcher = 0;
}
// Create player object based on player option.
// kdDebug() << "TestPlayer::play: creating Player object with playerOption " << m_playerOption << endl;
m_player = createPlayerObject(m_playerOption);
// If player object could not be created, avoid crash is the best we can do!
if (!m_player) return;
// kdDebug() << "TestPlayer::play: starting playback." << endl;
m_player->startPlay(playFile);
// TODO: The following hunk of code would ideally be unnecessary. We would just
// return at this point and let take care of
// cleaning up the play object. However, because we've been called from DCOP,
// this seems to be necessary. The call to processEvents is problematic because
// it can cause re-entrancy.
while (m_player->playing()) qApp->processEvents();
// kdDebug() << "TestPlayer::play: stopping playback." << endl;
m_player->stop();
delete m_player;
m_player = 0;
if (!tmpFile.isEmpty()) QFile::remove(tmpFile);
}
/**
* Creates and returns a player object based on user option.
*/
Player* TestPlayer::createPlayerObject(int playerOption)
{
Player* player = 0;
QString plugInName;
switch(playerOption)
{
case 1 :
{
plugInName = "kttsd_gstplugin";
break;
}
case 2 :
{
plugInName = "kttsd_alsaplugin";
break;
}
case 3 :
{
plugInName = "kttsd_akodeplugin";
break;
}
default:
{
plugInName = "kttsd_artsplugin";
break;
}
}
KTrader::OfferList offers = KTrader::self()->query(
"KTTSD/AudioPlugin", QString("DesktopEntryName == '%1'").arg(plugInName));
if(offers.count() == 1)
{
// kdDebug() << "TestPlayer::createPlayerObject: Loading " << offers[0]->library() << endl;
KLibFactory *factory = KLibLoader::self()->factory(offers[0]->library().latin1());
if (factory)
player =
KParts::ComponentFactory::createInstanceFromLibrary<Player>(
offers[0]->library().latin1(), this, offers[0]->library().latin1());
else
kdDebug() << "TestPlayer::createPlayerObject: Could not create factory." << endl;
}
if (player == 0)
kdDebug() << "TestPlayer::createPlayerObject: Could not load " + plugInName +
". Is KDEDIRS set correctly?" << endl;
else
// Must have GStreamer >= 0.8.7.
if (playerOption == 1)
{
if (!player->requireVersion(0, 8, 7))
{
delete player;
player = 0;
}
}
if (player) player->setSinkName(m_sinkName);
return player;
}
/**
* Constructs a temporary filename for plugins to use as a suggested filename
* for synthesis to write to.
* @return Full pathname of suggested file.
*/
QString TestPlayer::makeSuggestedFilename()
{
KTempFile tempFile (locateLocal("tmp", "kttsmgr-"), ".wav");
QString waveFile = tempFile.file()->name();
tempFile.close();
QFile::remove(waveFile);
// kdDebug() << "TestPlayer::makeSuggestedFilename: Suggesting filename: " << waveFile << endl;
return PlugInConf::realFilePath(waveFile);
}
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