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#include <boost/bind.hpp>
#include <iostream>
#include <osl/conditn.hxx>
#include <vcl/graph.hxx>
#include <vcl/bmpacc.hxx>
#include <vcl/pngread.hxx>
#include <avmedia/mediawindow.hxx>
#include <unotools/localfilehelper.hxx>
#include <unotools/tempfile.hxx>
#include <unotools/ucbstreamhelper.hxx>
#include <tools/stream.hxx>
#include "vlcframegrabber.hxx"
#include "vlcplayer.hxx"
#include "wrapper/Player.hxx"
#include "wrapper/EventManager.hxx"
using namespace ::com::sun::star;
namespace avmedia {
namespace vlc {
const ::rtl::OUString AVMEDIA_VLC_GRABBER_IMPLEMENTATIONNAME = "com.sun.star.comp.avmedia.VLCFrameGrabber_VLC";
const ::rtl::OUString AVMEDIA_VLC_GRABBER_SERVICENAME = "com.sun.star.media.VLCFrameGrabber_VLC";
const int MSEC_IN_SEC = 1000;
VLCFrameGrabber::VLCFrameGrabber( VLC::Player& player, VLC::EventHandler& eh, const rtl::OUString& url )
: FrameGrabber_BASE()
, mPlayer( player )
, mUrl( url )
, mEventHandler( eh )
{
}
::uno::Reference< css::graphic::XGraphic > SAL_CALL VLCFrameGrabber::grabFrame( double fMediaTime ) throw ( ::com::sun::star::uno::RuntimeException )
{
osl::Condition condition;
const rtl::OUString& fileName = utl::TempFile::CreateTempName();
{
VLC::EventManager manager( mPlayer, mEventHandler );
manager.onPaused(boost::bind(&osl::Condition::set, &condition));
mPlayer.setMute( true );
if ( !mPlayer.play() )
{
std::cerr << "Couldn't play when trying to grab frame" << std::endl;
return ::uno::Reference< css::graphic::XGraphic >();
}
mPlayer.setTime( ( fMediaTime > 0 ? fMediaTime : 0 ) * MSEC_IN_SEC );
mPlayer.pause();
const TimeValue timeout = {2, 0};
condition.wait(&timeout);
if ( mUrl.isEmpty() || !mPlayer.hasVout() )
{
std::cerr << "Couldn't grab frame" << std::endl;
mPlayer.setMute( false );
manager.onPaused();
return ::uno::Reference< css::graphic::XGraphic >();
}
std::cout << "Take snapshot " << fileName << std::endl;
std::cout << mPlayer.takeSnapshot( fileName ) << std::endl;
mPlayer.setMute( false );
mPlayer.stop();
manager.onPaused();
}
rtl::OUString url;
utl::LocalFileHelper::ConvertPhysicalNameToURL( fileName, url );
boost::shared_ptr<SvStream> stream( utl::UcbStreamHelper::CreateStream( url,
STREAM_STD_READ ) );
vcl::PNGReader reader( *stream );
const BitmapEx& bitmap = reader.Read();
return Graphic( bitmap ).GetXGraphic();
}
::rtl::OUString SAL_CALL VLCFrameGrabber::getImplementationName() throw ( ::com::sun::star::uno::RuntimeException )
{
return AVMEDIA_VLC_GRABBER_IMPLEMENTATIONNAME;
}
::sal_Bool SAL_CALL VLCFrameGrabber::supportsService( const ::rtl::OUString& serviceName ) throw ( ::com::sun::star::uno::RuntimeException )
{
return AVMEDIA_VLC_GRABBER_SERVICENAME == serviceName;
}
::uno::Sequence< ::rtl::OUString > SAL_CALL VLCFrameGrabber::getSupportedServiceNames() throw ( ::com::sun::star::uno::RuntimeException )
{
::uno::Sequence< OUString > aRet(1);
aRet[0] = AVMEDIA_VLC_GRABBER_SERVICENAME;
return aRet;
}
}
}
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