/// <summary>
/// Create start HTTP request
/// </summary>
private XmlQuery StartOrResumeApp(NvHttp nv, LimelightStreamConfiguration streamConfig)
{
XmlQuery serverInfo = new XmlQuery(nv.baseUrl + "/serverinfo?uniqueid=" + nv.GetUniqueId());
string currentGameString = serverInfo.XmlAttribute("currentgame");
byte[] aesIv = streamConfig.GetRiAesIv();
int riKeyId =
(int)(((aesIv[0] << 24) & 0xFF000000) |
((aesIv[1] << 16) & 0xFF0000) |
((aesIv[2] << 8) & 0xFF00) |
(aesIv[3] & 0xFF));
string riConfigString =
"&rikey=" + Pairing.bytesToHex(streamConfig.GetRiAesKey()) +
"&rikeyid=" + riKeyId;
// Launch a new game if nothing is running
if (currentGameString == null || currentGameString.Equals("0"))
{
return new XmlQuery(nv.baseUrl + "/launch?uniqueid=" + nv.GetUniqueId() + "&appid=" + selected.steamID +
"&mode=" + streamConfig.GetWidth() + "x" + streamConfig.GetHeight() + "x" + streamConfig.GetFps() +
"&additionalStates=1&sops=1" + // FIXME: make sops configurable
riConfigString);
}
else
{
// A game was already running, so resume it
// FIXME: Quit and relaunch if it's not the game we came to start
return new XmlQuery(nv.baseUrl + "/resume?uniqueid=" + nv.GetUniqueId() + riConfigString);
}
}
/// <summary>
/// Create start HTTP request
/// </summary>
private XmlQuery StartOrResumeApp(NvHttp nv, LimelightStreamConfiguration streamConfig)
{
XmlQuery serverInfo = new XmlQuery(nv.BaseUrl + "/serverinfo?uniqueid=" + nv.GetUniqueId());
string currentGameString = serverInfo.XmlAttribute("currentgame");
byte[] aesIv = streamConfig.GetRiAesIv();
int riKeyId =
(int)(((aesIv[0] << 24) & 0xFF000000) |
((aesIv[1] << 16) & 0xFF0000) |
((aesIv[2] << 8) & 0xFF00) |
(aesIv[3] & 0xFF));
string riConfigString =
"&rikey=" + Pairing.bytesToHex(streamConfig.GetRiAesKey()) +
"&rikeyid=" + riKeyId;
// Launch a new game if nothing is running
if (currentGameString == null || currentGameString.Equals("0"))
{
return(new XmlQuery(nv.BaseUrl + "/launch?uniqueid=" + nv.GetUniqueId() + "&appid=" + selected.steamID +
"&mode=" + streamConfig.GetWidth() + "x" + streamConfig.GetHeight() + "x" + streamConfig.GetFps() +
"&additionalStates=1&sops=1" + // FIXME: make sops configurable
riConfigString));
}
else
{
// A game was already running, so resume it
// FIXME: Quit and relaunch if it's not the game we came to start
return(new XmlQuery(nv.BaseUrl + "/resume?uniqueid=" + nv.GetUniqueId() + riConfigString));
}
}
/// <summary>
/// Event handler for page loaded event
/// </summary>
private async void Loaded(object sender, RoutedEventArgs e)
{
StreamDisplay.Visibility = Visibility.Visible;
Waitgrid.Visibility = Visibility.Collapsed;
currentStateText.Visibility = Visibility.Collapsed;
// Hide the status bar
//var statusBar = Windows.UI.ViewManagement.StatusBar.GetForCurrentView();
//await statusBar.HideAsync();
LimelightStreamConfiguration config;
byte[] aesKey = Pairing.GenerateRandomBytes(16);
// GameStream only uses 4 bytes of a 16 byte IV. Go figure.
byte[] aesRiIndex = Pairing.GenerateRandomBytes(4);
byte[] aesIv = new byte[16];
Array.ConstrainedCopy(aesRiIndex, 0, aesIv, 0, aesRiIndex.Length);
config = new LimelightStreamConfiguration(selected.pixels * (16 / 9), selected.pixels,
selected.fps, 5000, 1024, aesKey, aesIv);
InitializeMediaPlayer(config, AvStream);
//H264FileReaderHackery h = new H264FileReaderHackery();
//Task.Run(() => h.readFile(this));
await StartConnection(config);
}
/// <summary>
/// Starts the connection by calling into Limelight Common
/// </summary>
private async Task StartConnection()
{
NvHttp nv = null;
await SetStateText("Resolving hostname...");
try
{
nv = new NvHttp(selected.IpAddress);
}
catch (ArgumentNullException)
{
stageFailureText = "Error resolving hostname";
ConnectionFailed();
}
XmlQuery launchApp;
// Launch Steam
await SetStateText("Launching Steam");
try
{
launchApp = new XmlQuery(nv.baseUrl + "/launch?uniqueid=" + nv.GetDeviceName() + "&appid=" + selected.steamID);
}
catch (Exception)
{
Debug.WriteLine("Can't find steam");
stageFailureText = "Error launching Steam";
ConnectionFailed();
return;
}
// Set up callbacks
LimelightStreamConfiguration streamConfig = new LimelightStreamConfiguration(frameWidth, frameHeight, 30, 10000, 1024); // TODO a magic number. Get FPS from the settings
LimelightDecoderRenderer drCallbacks = new LimelightDecoderRenderer(DrSetup, DrStart, DrStop, DrRelease, DrSubmitDecodeUnit);
LimelightAudioRenderer arCallbacks = new LimelightAudioRenderer(ArInit, ArStart, ArStop, ArRelease, ArPlaySample);
LimelightConnectionListener clCallbacks = new LimelightConnectionListener(ClStageStarting, ClStageComplete, ClStageFailed,
ClConnectionStarted, ClConnectionTerminated, ClDisplayMessage, ClDisplayTransientMessage);
// Call into Common to start the connection
Debug.WriteLine("Starting connection");
uint addr = 0;
//uint addr = (uint)nv.resolvedHost.ToString(); // TODO how to get the addr as a uint
LimelightCommonRuntimeComponent.StartConnection(addr, streamConfig, clCallbacks, drCallbacks, arCallbacks);
if (stageFailureText != null)
{
Debug.WriteLine("Stage failed");
ConnectionFailed();
return;
}
else
{
ConnectionSuccess();
}
}
/// <summary>
/// Initialize the media element for playback
/// </summary>
/// <param name="streamConfig">Object containing stream configuration details</param>
void InitializeMediaPlayer(LimelightStreamConfiguration streamConfig, AvStreamSource streamSource)
{
this._streamSource = streamSource;
AudioEncodingProperties audioProperties = AudioEncodingProperties.CreatePcm(48000, 2, 16);
VideoEncodingProperties videoProperties = VideoEncodingProperties.CreateUncompressed(MediaEncodingSubtypes.H264Es,
(uint)streamConfig.GetWidth(), (uint)streamConfig.GetHeight());
videoProperties.ProfileId = H264ProfileIds.High;
_videoDesc = new VideoStreamDescriptor(videoProperties);
_audioDesc = new AudioStreamDescriptor(audioProperties);
_mss = new MediaStreamSource(_videoDesc, _audioDesc);
_mss.BufferTime = TimeSpan.Zero;
_mss.CanSeek = false;
_mss.Duration = TimeSpan.Zero;
_mss.SampleRequested += _mss_SampleRequested;
// Set for low latency playback
StreamDisplay.RealTimePlayback = true;
// Set the audio category to take advantage of hardware audio offload
StreamDisplay.AudioCategory = AudioCategory.ForegroundOnlyMedia;
// Render on the full window to avoid extra compositing
StreamDisplay.IsFullWindow = true;
// Disable built-in transport controls
StreamDisplay.AreTransportControlsEnabled = false;
// Start playing right away
StreamDisplay.AutoPlay = true;
StreamDisplay.SetMediaStreamSource(_mss);
}
/// <summary>
/// Initialize the media element for playback
/// </summary>
/// <param name="streamConfig">Object containing stream configuration details</param>
void InitializeMediaPlayer(LimelightStreamConfiguration streamConfig, AvStreamSource streamSource)
{
this._streamSource = streamSource;
AudioEncodingProperties audioProperties = AudioEncodingProperties.CreatePcm(48000, 2, 16);
VideoEncodingProperties videoProperties = VideoEncodingProperties.CreateUncompressed(MediaEncodingSubtypes.H264Es,
(uint)streamConfig.GetWidth(), (uint)streamConfig.GetHeight());
videoProperties.ProfileId = H264ProfileIds.High;
_videoDesc = new VideoStreamDescriptor(videoProperties);
_audioDesc = new AudioStreamDescriptor(audioProperties);
_mss = new MediaStreamSource(_videoDesc, _audioDesc);
_mss.BufferTime = TimeSpan.Zero;
_mss.CanSeek = false;
_mss.Duration = TimeSpan.Zero;
_mss.SampleRequested += _mss_SampleRequested;
// Set for low latency playback
StreamDisplay.RealTimePlayback = true;
// Set the audio category to take advantage of hardware audio offload
StreamDisplay.AudioCategory = AudioCategory.ForegroundOnlyMedia;
// Render on the full window to avoid extra compositing
StreamDisplay.IsFullWindow = true;
// Disable built-in transport controls
StreamDisplay.AreTransportControlsEnabled = false;
// Start playing right away
StreamDisplay.AutoPlay = true;
StreamDisplay.SetMediaStreamSource(_mss);
}
/// <summary>
/// Starts the connection by calling into Limelight Common
/// </summary>
private async Task StartConnection(LimelightStreamConfiguration streamConfig)
{
NvHttp nv = null;
await SetStateText("Resolving hostname...");
try
{
nv = new NvHttp(selected.IpAddress);
}
catch (ArgumentNullException)
{
stageFailureText = "Error resolving hostname";
ConnectionFailed();
return;
}
try
{
await nv.ServerIPAddress();
}
catch (Exception)
{
stageFailureText = "Error resolving hostname";
ConnectionFailed();
return;
}
// Set up callbacks
LimelightDecoderRenderer drCallbacks = new LimelightDecoderRenderer(DrSetup, DrStart, DrStop, DrRelease, DrSubmitDecodeUnit);
LimelightAudioRenderer arCallbacks = new LimelightAudioRenderer(ArInit, ArStart, ArStop, ArRelease, ArPlaySample);
LimelightConnectionListener clCallbacks = new LimelightConnectionListener(ClStageStarting, ClStageComplete, ClStageFailed,
ClConnectionStarted, ClConnectionTerminated, ClDisplayMessage, ClDisplayTransientMessage);
XmlQuery launchApp;
// Launch Steam
await SetStateText("Launching Steam");
try
{
launchApp = StartOrResumeApp(nv, streamConfig);
}
catch (Exception)
{
Debug.WriteLine("Can't find steam");
stageFailureText = "Error launching Steam";
ConnectionFailed();
return;
}
// Call into Common to start the connection
Debug.WriteLine("Starting connection");
Regex r = new Regex(@"^(?<octet1>\d+).(?<octet2>\d+).(?<octet3>\d+).(?<octet4>\d+)");
Match m = r.Match(selected.IpAddress);
uint addr = (uint)(Convert.ToByte(m.Groups["octet4"].Value) << 24 |
Convert.ToByte(m.Groups["octet3"].Value) << 16 |
Convert.ToByte(m.Groups["octet2"].Value) << 8 |
Convert.ToByte(m.Groups["octet1"].Value));
LimelightCommonRuntimeComponent.StartConnection(addr, streamConfig, clCallbacks, drCallbacks, arCallbacks);
if (stageFailureText != null)
{
Debug.WriteLine("Stage failed");
ConnectionFailed();
return;
}
else
{
ConnectionSuccess();
}
}
/// <summary>
/// Starts the connection by calling into Limelight Common
/// </summary>
private async Task StartConnection(LimelightStreamConfiguration streamConfig)
{
NvHttp nv = null;
await SetStateText("Resolving hostname...");
try
{
nv = new NvHttp(selected.IpAddress);
}
catch (ArgumentNullException)
{
stageFailureText = "Error resolving hostname";
ConnectionFailed();
return;
}
try
{
await nv.ServerIPAddress();
}
catch (Exception)
{
stageFailureText = "Error resolving hostname";
ConnectionFailed();
return;
}
// Set up callbacks
LimelightDecoderRenderer drCallbacks = new LimelightDecoderRenderer(DrSetup, DrStart, DrStop, DrRelease, DrSubmitDecodeUnit);
LimelightAudioRenderer arCallbacks = new LimelightAudioRenderer(ArInit, ArStart, ArStop, ArRelease, ArPlaySample);
LimelightConnectionListener clCallbacks = new LimelightConnectionListener(ClStageStarting, ClStageComplete, ClStageFailed,
ClConnectionStarted, ClConnectionTerminated, ClDisplayMessage, ClDisplayTransientMessage);
XmlQuery launchApp;
// Launch Steam
await SetStateText("Launching Steam");
try
{
launchApp = StartOrResumeApp(nv, streamConfig);
}
catch (Exception)
{
Debug.WriteLine("Can't find steam");
stageFailureText = "Error launching Steam";
ConnectionFailed();
return;
}
// Call into Common to start the connection
Debug.WriteLine("Starting connection");
Regex r = new Regex(@"^(?<octet1>\d+).(?<octet2>\d+).(?<octet3>\d+).(?<octet4>\d+)");
Match m = r.Match(selected.IpAddress);
uint addr = (uint)(Convert.ToByte(m.Groups["octet4"].Value) << 24 |
Convert.ToByte(m.Groups["octet3"].Value) << 16 |
Convert.ToByte(m.Groups["octet2"].Value) << 8 |
Convert.ToByte(m.Groups["octet1"].Value));
LimelightCommonRuntimeComponent.StartConnection(addr, streamConfig, clCallbacks, drCallbacks, arCallbacks);
if (stageFailureText != null)
{
Debug.WriteLine("Stage failed");
ConnectionFailed();
return;
}
else
{
ConnectionSuccess();
}
}
/// <summary>
/// Event handler for Background Worker's doWork event.
/// </summary>
private void bwDoWork(object sender, DoWorkEventArgs e)
{
Debug.WriteLine("Doing work");
String hostNameString = (String)PhoneApplicationService.Current.State["host"];
// Resolve the host name to an IP address string.
Dispatcher.BeginInvoke(new Action(() => setStateText("Resolving hostname...")));
ResolveHostName(hostNameString);
stopWaitHandle.WaitOne();
// Set up callbacks
LimelightStreamConfiguration streamConfig = new LimelightStreamConfiguration(frameWidth, frameHeight, 30); // TODO a magic number. Get FPS from the settings
LimelightDecoderRenderer drCallbacks = new LimelightDecoderRenderer(DrSetup, DrStart, DrStop, DrRelease, DrSubmitDecodeUnit);
LimelightAudioRenderer arCallbacks = new LimelightAudioRenderer(ArInit, ArStart, ArStop, ArRelease, ArPlaySample);
LimelightConnectionListener clCallbacks = new LimelightConnectionListener(ClStageStarting, ClStageComplete, ClStageFailed,
ClConnectionStarted, ClConnectionTerminated, ClDisplayMessage, ClDisplayTransientMessage);
// Call into Common to start the connection
Debug.WriteLine("Starting connection");
LimelightCommonRuntimeComponent.StartConnection((uint)resolvedHost.Address, streamConfig, clCallbacks, drCallbacks, arCallbacks);
// If one of the stages failed, tell the background worker to cancel
if(stageFailureText != null)
{
Debug.WriteLine("Stage failed - background worker cancelled");
e.Cancel = true;
}
}
/// <summary>
/// Event handler for page loaded event
/// </summary>
private async void Loaded(object sender, RoutedEventArgs e)
{
StreamDisplay.Visibility = Visibility.Visible;
Waitgrid.Visibility = Visibility.Collapsed;
currentStateText.Visibility = Visibility.Collapsed;
// Hide the status bar
//var statusBar = Windows.UI.ViewManagement.StatusBar.GetForCurrentView();
//await statusBar.HideAsync();
LimelightStreamConfiguration config;
byte[] aesKey = Pairing.GenerateRandomBytes(16);
// GameStream only uses 4 bytes of a 16 byte IV. Go figure.
byte[] aesRiIndex = Pairing.GenerateRandomBytes(4);
byte[] aesIv = new byte[16];
Array.ConstrainedCopy(aesRiIndex, 0, aesIv, 0, aesRiIndex.Length);
config = new LimelightStreamConfiguration(selected.pixels*(16/9), selected.pixels,
selected.fps, 5000, 1024, aesKey, aesIv);
InitializeMediaPlayer(config, AvStream);
//H264FileReaderHackery h = new H264FileReaderHackery();
//Task.Run(() => h.readFile(this));
await StartConnection(config);
}
