video-streaming MythTV

[gorka_sm]

Hello I have implemented a video streaming client based on a Qt MythUI client. There is a server implemented in JAVA for sending images an frames and threre is also other client developed in Qt for reveiving all the images and representing them . The code of the client is developed in a class called NetworkControl and it is the following :

void NetworkControl::aceptar_conexiones()
{
 
	QTcpSocket *soket = new QTcpSocket(this);
        const QString direc ="xxxxxxxxxx";
	quint16 port = 4445;
	soket->connectToHOst(direc,port)
	connect(soket,SIGNAL(readyRead()),this,SLOT(leercaracter()))
 
}
 
 
 
 
 
void NetworkControl::leerCaracter()
{
 
QTcpSocket *socket (QTcpSocket *)sender();
QBYteArray *b1 = socket->readAll();
 
QImage ax= new QImage("xxxxxxxx");
 
ax->Load(b1);
 
}

void NetworkControl::aceptar_conexiones()
{

	QTcpSocket *soket = new QTcpSocket(this);
        const QString direc ="xxxxxxxxxx";
	quint16 port = 4445;
	soket->connectToHOst(direc,port)
	connect(soket,SIGNAL(readyRead()),this,SLOT(leercaracter()))

}





void NetworkControl::leerCaracter()
{

QTcpSocket *socket (QTcpSocket *)sender();
QBYteArray *b1 = socket->readAll();

QImage ax= new QImage("xxxxxxxx");

ax->Load(b1);
  
}

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I am working in a Mythtv system ( http://www.mythtv.org/wiki/User_Manu...l_Installation ) . I have the following doubts:

1 - How to obtain a QByteArray from a a QImage ( is ax->Load(b1) the correct way of obtaining it ?)
2 - I have to represent the QImage on a screen. I am working with the class MythImage ( http://www.cuymedia.net/mythtv-0.20/...8h-source.html ) y MythUIImage ( http://cuymedia.net/mythtv-trunk/myth
uiimage_8h-source.html ) .
How to convert from QImage to MythImage ? How to convert from MythImage to MythUIImage ?
3- Is there other way of representing images in Mythtv ?
Thanks
Gorka

[high_flyer]

1 - How to obtain a QByteArray from a a QImage

QByteArray baImage(image.bits(),iImageByteSize);

QByteArray baImage(image.bits(),iImageByteSize);

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How to convert from QImage to MythImage ?

Since MythImage subclasses QImage, you could use for example loadFromData() or fromData() and give it QImage::bits() as input.

[gorsanmo]

Hello :
I obtain the QImage using the following code :

QTcpSocket *socket (QTcpSocket *)sender();
QBYteArray *b1 = socket->readAll();
QImage ax= new QImage("xxxxxxxx");
ax->Load(b1);

QTcpSocket *socket (QTcpSocket *)sender();
QBYteArray *b1 = socket->readAll();
QImage ax= new QImage("xxxxxxxx");
ax->Load(b1);

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NOw I have two questions

1) When I asked you how to pass from a QImage to a MythIMage you told me :


"Since MythImage subclasses QImage, you could use for example loadFromData() or fromData() and give it QImage::bis() as input "
¿ What does QImage::bis() mean ?

2) In JAVA I implement the following QTcpServer for sending Images :

ServerSocket servidor = new ServerSocket(4445);
		Socket conexion = null;
		salida = new Vector<ObjectOutputStream>();
 
		// iniciar la captura desde la webcam
		CaptureStream captureStream = iniciarCaptura();
 
		conexion = servidor.accept();
		salida.add(new ObjectOutputStream(conexion	.getOutputStream()));

ServerSocket servidor = new ServerSocket(4445);
		Socket conexion = null;
		salida = new Vector<ObjectOutputStream>();

		// iniciar la captura desde la webcam
		CaptureStream captureStream = iniciarCaptura();

		conexion = servidor.accept();
		salida.add(new ObjectOutputStream(conexion	.getOutputStream()));

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Where iniciarcaptura() is the following method :

private CaptureStream iniciarCaptura() throws IOException,
				CaptureException
		{
			CaptureStream captureStream = null;
			List list = system.getCaptureDeviceInfoList();
			for (int i = 0; i < list.size(); ++i)
			{
		CaptureDeviceInfo info = (CaptureDeviceInfo)list.get(i);
 
		ptureStream = system.openCaptureDeviceStream(info.getDeviceID());
 
		List<VideoFormat> ls = captureStream.enumVideoFormats();
 
		captureStream.setVideoFormat(ls.get(0));
 
		captureStream.setObserver(new MyCaptureObserver());
 
		break;
			}
 
		return captureStream;
		}

private CaptureStream iniciarCaptura() throws IOException,
				CaptureException
		{
			CaptureStream captureStream = null;
			List list = system.getCaptureDeviceInfoList();
			for (int i = 0; i < list.size(); ++i)
			{
		CaptureDeviceInfo info = (CaptureDeviceInfo)list.get(i);

		ptureStream = system.openCaptureDeviceStream(info.getDeviceID());
				
		List<VideoFormat> ls = captureStream.enumVideoFormats();
				
		captureStream.setVideoFormat(ls.get(0));
				
		captureStream.setObserver(new MyCaptureObserver());

		break;
			}

		return captureStream;
		}

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The question is

Is
QTcpSocket *socket (QTcpSocket *)sender();
QBYteArray *b1 = socket->readAll();
the best way of reading Images in the receptor ?

Thanks
Gorka

[high_flyer]

¿ What does QImage::bis() mean ?

Read the docs.
I had a typo it should be QImage::bits().

the best way of reading Images in the receptor ?

depends on the way you evaluate what "best" is.
It is a valid way for sure.