hyperion.ng/libsrc/xbmcvideochecker/XBMCVideoChecker.cpp

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// Qt includes
#include <QUrl>
#include <xbmcvideochecker/XBMCVideoChecker.h>
XBMCVideoChecker::XBMCVideoChecker(const std::string & address, uint16_t port, uint64_t interval_ms, bool grabVideo, bool grabPhoto, bool grabAudio, bool grabMenu) :
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QObject(),
_address(QString::fromStdString(address)),
_port(port),
_request("{\"jsonrpc\":\"2.0\",\"method\":\"Player.GetActivePlayers\",\"id\":1}"),
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_timer(),
_socket(),
_grabVideo(grabVideo),
_grabPhoto(grabPhoto),
_grabAudio(grabAudio),
_grabMenu(grabMenu),
_previousMode(GRABBINGMODE_INVALID)
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{
// setup timer
_timer.setSingleShot(false);
_timer.setInterval(interval_ms);
connect(&_timer, SIGNAL(timeout()), this, SLOT(sendRequest()));
// setup socket
connect(&_socket, SIGNAL(readyRead()), this, SLOT(receiveReply()));
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}
void XBMCVideoChecker::start()
{
_timer.start();
}
void XBMCVideoChecker::sendRequest()
{
switch (_socket.state())
{
case QTcpSocket::UnconnectedState:
// not connected. try to connect
std::cout << "Connecting to " << _address.toStdString() << ":" << _port << " to check XBMC player status" << std::endl;
_socket.connectToHost(_address, _port);
break;
case QTcpSocket::ConnectedState:
// write the request on the socket
_socket.write(_request);
break;
default:
// whatever. let's check again at the next timer tick
break;
}
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}
void XBMCVideoChecker::receiveReply()
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{
// expect that the reply is received as a single message. Probably oke considering the size of the expected reply
QString reply(_socket.readAll());
GrabbingMode newMode = GRABBINGMODE_INVALID;
if (reply.contains("video"))
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{
// video is playing
newMode = _grabVideo ? GRABBINGMODE_VIDEO : GRABBINGMODE_OFF;
}
else if (reply.contains("picture"))
{
// photo viewer is playing
newMode = _grabVideo ? GRABBINGMODE_PHOTO : GRABBINGMODE_OFF;
}
else if (reply.contains("audio"))
{
// photo viewer is playing
newMode = _grabVideo ? GRABBINGMODE_AUDIO : GRABBINGMODE_OFF;
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}
else
{
// Nothing is playing.
newMode = _grabMenu ? GRABBINGMODE_MENU : GRABBINGMODE_OFF;
}
// emit new state if applicable
if (newMode != _previousMode)
{
emit grabbingMode(newMode);
_previousMode = newMode;
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}
}