Live TV with Qt

Article Metadata

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Code Example

Source file: Media:LiveTVQt.zip

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Tested with

Devices(s): N8

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Compatibility

Platform(s): Symbian

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Article

Keywords: Live TV

Created: somnathbanik (21 Mar 2011)

Last edited: hamishwillee (11 Oct 2012)

Description

This is a Live Streaming Application which launches the default Real Player of the device and plays an RTSP Streaming Link. I will show you how to play You Tube Videos (Live) in this article. You can also try to play Live TV Channels using other RTSP like rtsp://server/domain/tvname.sdp

How to start

1. Lets create a text file and paste this link rtsp://v4.cache4.c.youtube.com/CkELENy73wIaOAnGbz7NeJeeixMYDSANFEIJbXYtZ29vZ2xlSARSBXdhdGNoWglDbGlja0xpbmtgqZW17Zb0qbRKDA==/0/0/0/video.3gp
2. Save the text file as youtube.ram
3. Create a folder with a name channel
4. Copy the file youtube.ram to channel
5. Create a New Qt project, and named as LiveTVQt
6. Copy the channel folder to LiveTVQt ( project directory).

LiveTVQt.pro

Use the DEPLOYMENT keyword to copy files into the package file and to the device. All the files from the channel folder are copied into the package. When the package is installed on the device, the files are stored on the device's C:\Data\System\LiveTVChannel folder.

TEMPLATE = app
TARGET = LiveTVQt
QT += core \
    gui \
    network \
    webkit \
    webkit \
    phonon
HEADERS += LiveTVQt.loc \
    LiveTVQt.h
SOURCES += LiveTVQt.rss \
    LiveTVQt_reg.rss \
    main.cpp \
    LiveTVQt.cpp
FORMS += LiveTVQt.ui
RESOURCES += 
symbian:TARGET.UID3 = 0xEA524E4F
 
myFiles.sources = channel\*
myFiles.path = c:\data\system\LiveTVChannel
DEPLOYMENT += myFiles

LiveTVQt.h

#ifndef LIVETVQT_H
#define LIVETVQT_H
 
#include <QtGui/QMainWindow>
#include "ui_LiveTVQt.h"
#include <QProcess>
 
class LiveTVQt : public QMainWindow
{
    Q_OBJECT
 
public:
	LiveTVQt(QWidget *parent = 0);
    ~LiveTVQt();
    //function to create menu.
       void createMyMenu();
public Q_SLOTS: //slots to receive action of menu trigger.
 
    void launchRealPlayerAction();
    void processError(QProcess::ProcessError err);
 
 
private:
    Ui::LiveTVQt ui;
    //Actions for menu item
   	QAction* menu_launchRealPlayeAction;
  	QAction* menu_exitAction;
  	QProcess process;
};
 
#endif // LIVETVQT_H

LiveTVQt.cpp

#include "LiveTVQt.h"
#include <QDesktopServices>
#include <QUrl>
#include <QMessageBox>
 
LiveTVQt::LiveTVQt(QWidget *parent)
    : QMainWindow(parent)
{
	ui.setupUi(this);
	setWindowTitle("Live TV");
		createMyMenu();
	    QObject::connect( &process, SIGNAL(error(QProcess::ProcessError)), 
	                      this, SLOT(processError(QProcess::ProcessError)));
}
 
LiveTVQt::~LiveTVQt()
{
 
}
 
void LiveTVQt::createMyMenu()
{
 
 
	menu_launchRealPlayeAction = new QAction(tr("You Tube"), this);
	menuBar()->addAction(menu_launchRealPlayeAction);
	connect(menu_launchRealPlayeAction, SIGNAL(triggered()), this, SLOT(launchRealPlayerAction()));
 
 
 
	menu_exitAction = new QAction(tr("Exit"), this);
	menuBar()->addAction(menu_exitAction);
	connect(menu_exitAction, SIGNAL(triggered()), this, SLOT(close()));
}
 
 
void LiveTVQt::launchRealPlayerAction()
{
	QDesktopServices::openUrl(QUrl(tr("file:///C:/data/system/LiveTVChannel/youtube.ram")));
 
}
 
 
void LiveTVQt::processError(QProcess::ProcessError err)
{
	switch(err)
	{
	case QProcess::FailedToStart:
		QMessageBox::information(0,"FailedToStart","FailedToStart");
		break;
	case QProcess::Crashed:
		QMessageBox::information(0,"Crashed","Crashed");
		break;
	case QProcess::Timedout:
		QMessageBox::information(0,"FailedToStart","FailedToStart");
		break;
	case QProcess::WriteError:
		QMessageBox::information(0,"Timedout","Timedout");
		break;
	case QProcess::ReadError:
		QMessageBox::information(0,"ReadError","ReadError");
		break;
	case QProcess::UnknownError:
		QMessageBox::information(0,"UnknownError","UnknownError");
		break;
	default:
		QMessageBox::information(0,"default","default");
		break;
	}
}

Source Code

The full source code presented in this article is available here File:LiveTVQt.zip

Related Example

BTV Live Source Code: [BTV Live]

--somnathbanik