player.cpp 5.96 KB
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/***************************************************************************
                          player.cpp  -  description
                             -------------------
    begin                : Sun Feb 17 2002
    copyright            : (C) 2002 by Scott Wheeler
    email                : scott@slackorama.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.                                   *
 *                                                                         *
 ***************************************************************************/

#include <kdebug.h>

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#include <qfile.h>

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#include <connect.h>
#include <flowsystem.h>

#include "player.h"

////////////////////////////////////////////////////////////////////////////////
// public methods
////////////////////////////////////////////////////////////////////////////////

Player::Player()
{
  server = 0;
  volumeControl = 0;
  media = 0;
  dispatcher = 0;
  setupPlayer();
}

Player::Player(QString fileName)
{
  setupPlayer();
  currentFile=fileName;
}

Player::~Player()
{
  if(volumeControl) 
    delete(volumeControl);
  if(media)
    delete(media);
  if(server)
    delete(server);
  if(dispatcher)
    delete(dispatcher);
}

void Player::play(QString fileName, float volume = 1.0)
{
  currentFile=fileName;
  play(volume);
}

void Player::play(float volume = 1.0)
{
  if(serverRunning()) {
    if(media && media->state()==posPaused) {
      media->play();
    }
    else {
      if(media) {
	stop();
      }
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      media = new PlayObject(server->createPlayObject(QFile::encodeName(currentFile).data()));
      //      media = new PlayObject(server->createPlayObject(currentFile.latin1()));
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      if(!media->isNull()) {
	setVolume(volume);
	media->play();
      }
      else {
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	kdDebug() << "Media did not initialize properly! (" << currentFile << ")" << endl;
	delete(media);
	media = 0;
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      }
    }
  }
}

void Player::pause()
{
  if(serverRunning()) {
    if(media) {
      media->pause();
    }
  }
}

void Player::stop()
{
  if(serverRunning()) {
    if(media) {
      media->halt();
      delete(media);
      media = 0;
    }
    if(volumeControl) {
      delete(volumeControl);
      volumeControl = 0;
    }
  }
}

void Player::setVolume(float volume=1.0)
{
  if(serverRunning()) {
    if(!volumeControl)
      setupVolumeControl();
    if(volumeControl) {
      volumeControl->scaleFactor(volume); 
    }
  }
}

/////////////////////////////////////////////////////////////////////////////////
// player status functions
/////////////////////////////////////////////////////////////////////////////////

bool Player::playing()
{
  if(serverRunning() && media && media->state()==posPlaying) {
    return(true);
  }
  else {
    return(false);
  }
}

bool Player::paused()
{
  if(serverRunning() && media && media->state()==posPaused) {
    return(true);
  }
  else {
    return(false);
  }
}

long Player::totalTime()
{
  if(serverRunning() && media) {
    return(media->overallTime().seconds);
  }
  else {
    return(-1);
  }
}

long Player::currentTime()
{
  if(serverRunning() && media && media->state()==posPlaying) {
    return(media->currentTime().seconds);
  }
  else {
    return(-1);
  }
}

int Player::position()
{
  if(serverRunning() && media && media->state()==posPlaying) {
    //    long total=media->overallTime().ms;
    //    long current=media->currentTime().ms;
    long total=media->overallTime().seconds * 1000 + media->overallTime().ms;
    long current=media->currentTime().seconds * 1000 + media->currentTime().ms;
    // add .5 to make rounding happen properly
    return(int(double(current)*1000/total+.5)); // x1000 not x100, so this isn't an actaul percent
  }
  else {
    return(-1);
  }
}

/////////////////////////////////////////////////////////////////////////////////
// player seek functions
/////////////////////////////////////////////////////////////////////////////////

void Player::seek(long seekTime)
{
  if(serverRunning() && media) {
    poTime poSeekTime;
    poSeekTime.seconds=seekTime;
    media->seek(poSeekTime);
  }
}

void Player::seekPosition(int position)
{
  if(serverRunning() && media) {
    poTime poSeekTime;
    long total=media->overallTime().seconds;
    poSeekTime.seconds=long(double(total)*position/1000+.5);
    media->seek(poSeekTime);
  }
}

/////////////////////////////////////////////////////////////////////////////////
// private 
/////////////////////////////////////////////////////////////////////////////////

void Player::setupPlayer()
{
  dispatcher=new Dispatcher;
  server=new SimpleSoundServer(Reference("global:Arts_SimpleSoundServer"));
}

void Player::setupVolumeControl()
{
  volumeControl = new StereoVolumeControl(DynamicCast(server->createObject("Arts::StereoVolumeControl")));
  if(volumeControl && media && !volumeControl->isNull() && !media->isNull()) {
    
    Synth_BUS_UPLINK uplink = Arts::DynamicCast(media->_getChild( "uplink" ));
    uplink.stop();
    Arts::disconnect(*media, "left", uplink, "left");
    Arts::disconnect(*media, "right", uplink, "right");
    
    volumeControl->start();
    uplink.start();
    media->_addChild(*volumeControl, "volume" );
    
    Arts::connect(*media, "left", *volumeControl, "inleft");
    Arts::connect(*media, "right", *volumeControl, "inright");
    Arts::connect(*volumeControl, "outleft", uplink, "left");
    Arts::connect(*volumeControl, "outright", uplink, "right");
  }
  else {
    delete(volumeControl);
    volumeControl = 0;
    kdDebug() << "Could not initialize volume control!" << endl;
  }
}

bool Player::serverRunning()
{
  if(server)
    return(!(server->isNull()));
  else
    return(0);
}