X11Renderer::X11Renderer(VideoWidget *videoWidget)
: AbstractRenderer(videoWidget)
{
m_renderWidget = new OverlayWidget(videoWidget, this);
videoWidget->backend()->logMessage("Creating X11 overlay renderer");
QPalette palette;
palette.setColor(QPalette::Background, Qt::black);
m_videoWidget->setPalette(palette);
m_videoWidget->setAutoFillBackground(true);
m_renderWidget->setMouseTracking(true);
m_videoSink = createVideoSink();
aspectRatioChanged(videoWidget->aspectRatio());
setOverlay();
}
void MediaPlayer::threadLoadMedia()
{
m_duration = -1;
m_errorsDetected = false;
// Initialize gstreamer if not initialized yet
if ( !gst_is_initialized() )
{
//qputenv( "GST_DEBUG", "*:4" );
#ifdef WIN32
QString env = QString("GST_PLUGIN_PATH=%1\\gstreamer\\") .arg( QApplication::applicationDirPath() );
env.replace( "/", "\\" );
_putenv( qPrintable(env) );
Logger::debug( "GstMediaPlayer: setting %s", qPrintable( env ) );
#endif
gst_init(0, 0);
}
// Create the empty pipeline (this must be done first)
m_gst_pipeline = gst_pipeline_new ("karaokepipeline");
if ( !m_gst_pipeline )
{
reportError( "Pipeline could not be created." );
return;
}
// Create the pipeline bus
m_gst_bus = gst_element_get_bus( m_gst_pipeline );
if ( !m_gst_bus )
{
reportError( "Pipeline bus could not be created." );
return;
}
// Set the handler for the bus
gst_bus_set_sync_handler( m_gst_bus, cb_busMessageDispatcher, this, 0 );
// Create our media source, which could be either QIODevice/appsrc or a file
// this also creates a decoder
setupSource();
// Those are mandatory
if ( !m_gst_pipeline || !m_gst_source || !m_gst_decoder )
{
reportError( "Not all elements could be created." );
return;
}
// Link and set up source and decoder if they are not the same object.
if ( m_gst_source != m_gst_decoder )
{
if ( !gst_element_link( m_gst_source, m_gst_decoder ) )
{
reportError( "Cannot link source and decoder." );
return;
}
}
// If we do not have raw data, connect to the pad-added signal
g_signal_connect( m_gst_decoder, "pad-added", G_CALLBACK (cb_pad_added), this );
// Pre-create video elements if we need them
if ( (m_loadOptions & MediaPlayer::LoadVideoStream) != 0 )
{
m_gst_video_colorconv = createElement( "videoconvert", "videoconvert" );
m_gst_video_sink = createVideoSink();
if ( !m_gst_video_colorconv || !m_gst_video_sink )
{
reportError( "Not all elements could be created." );
return;
}
// Link the color converter and video sink
if ( !gst_element_link( m_gst_video_colorconv, m_gst_video_sink ) )
{
reportError( "Cannor link video elements" );
return;
}
}
// Pre-create audio elements if we need them
if ( (m_loadOptions & MediaPlayer::LoadAudioStream) != 0 )
{
// Load the pitch plugin if it is available
m_pitchPlugin = pPluginManager->loadPitchChanger();
// Create the audio elements, and add them to the bin
m_gst_audioconverter = createElement ("audioconvert", "convert");
m_gst_audio_volume = createElement("volume", "volume");
m_gst_audiosink = createElement ("autoaudiosink", "sink");
// Those are mandatory
if ( !m_gst_audioconverter || !m_gst_audiosink || !m_gst_audio_volume )
{
reportError( "Not all elements could be created." );
return;
}
// This one is optional, although it seems to be present everywhere
m_gst_audio_tempo = createElement( "scaletempo", "tempo", false );
// If we have the pitch changer
if ( m_pitchPlugin && m_pitchPlugin->init() )
m_gst_audio_pitchadjust = createElement( m_pitchPlugin->elementName(), "audiopitchchanger", false );
else
m_gst_audio_pitchadjust = 0;
// Start linking
bool linksucceed = true;
GstElement * last = m_gst_audioconverter;
if ( m_gst_audio_pitchadjust )
{
m_gst_audioconverter2 = createElement ("audioconvert", "convert2");
linksucceed = gst_element_link_many( m_gst_audioconverter, m_gst_audio_pitchadjust, m_gst_audioconverter2, NULL );
last = m_gst_audioconverter2;
}
// Now link in volume
linksucceed = gst_element_link( last, m_gst_audio_volume );
last = m_gst_audio_volume;
// Now link in tempo if it is available
if ( linksucceed && m_gst_audio_tempo )
{
linksucceed = gst_element_link( last, m_gst_audio_tempo );
last = m_gst_audio_tempo;
}
// And finally the audio sink
if ( linksucceed )
linksucceed = gst_element_link( last, m_gst_audiosink );
if ( !linksucceed )
{
reportError( "Audio elements could not be linked." );
return;
}
}
setPipelineState( GST_STATE_PAUSED );
}
