private async Task <MediaRendererDevice[]> GetMediaRendererUpnp()
{
var locations = await GetDeviceLocations(URN_MediaRenderer);
var devices = new List <MediaRendererDevice>();
foreach (var location in locations)
{
MediaRendererDevice device = new MediaRendererDevice();
try
{
await device.Init(location.Item1, location.Item2, progress);
devices.Add(device);
}
catch (Exception)
{
}
}
return(devices.ToArray());
}
public CurrentUpnpPlayback(MediaRendererDevice mediaRendererDevice)
{
MediaRendererDevice = mediaRendererDevice;
}
public AVTransport(MediaRendererDevice mediaRendererDevice)
{
_mediaRendererDevice = mediaRendererDevice;
_progress = new NullProgress();
}
public async Task <MediaRendererDevice[]> GetMediaRendererWindows()
{
var results = new List <MediaRendererDevice>();
//
// Notionally we should search for all devices that are urn:schemas-upnp-org:device:MediaRenderer:1
// But the device-enumeration API doesn//t support a search by device-type.
// Instead, rely on the fact that all MediaRenderers have ConnectionManager, RenderingControl and (optionally) AVTransport
// Obtained by looking in Windows SDK headers for PKEYs, and figuring out by experiment that this refers to the control Url:
var PKEY_PNPX_ServiceControlUrl = "{656A3BB3-ECC0-43FD-8477-4AE0404A96CD},16388";
// Obtained by experimenting with three different MediaRenderers, and verifying that they all used these interfaces (service-types):
// DeviceInterface::System.Devices.InterfaceClassGuid is a reliable way of finding servicetypes.
// DeviceInterface::System.Devices.ServiceId is unreliable.
var RenderingControlInterfaceClass = new Guid("8660e926-ff3d-580c-959e-8b8af44d7cde");
var ConnectionManagerInterfaceClass = new Guid("ae9eb9c4-8819-51d8-879d-9a42ffb89d4e");
var AVTransportInterfaceClass = new Guid("4c38e836-6a2f-5949-9406-1788ea20d1d5");
var ContentDirectoryInterfaceClass = new Guid("575d078a-63b9-5bc0-958b-87cc35b279cc");
var RenderingControls = await Windows.Devices.Enumeration.Pnp.PnpObject.FindAllAsync(
Windows.Devices.Enumeration.Pnp.PnpObjectType.DeviceInterface, new List <string>()
{
"System.Devices.DeviceInstanceId",
"System.Devices.InterfaceClassGuid",
"System.Devices.ContainerId"
},
"System.Devices.InterfaceClassGuid:=\"{" + RenderingControlInterfaceClass.ToString() + "}\"");
foreach (var device in RenderingControls)
{
if (!device.Properties.ContainsKey("System.Devices.DeviceInstanceId"))
{
continue;
}
if (!device.Properties.ContainsKey("System.Devices.ContainerId"))
{
continue;
}
var id = (string)device.Properties["System.Devices.DeviceInstanceId"];
var containerId = (Guid)device.Properties["System.Devices.ContainerId"];
var ConnectionManagerInterface = (await Windows.Devices.Enumeration.Pnp.PnpObject.FindAllAsync(
Windows.Devices.Enumeration.Pnp.PnpObjectType.DeviceInterface, new List <string>()
{
"System.Devices.DeviceInstanceId",
"System.Devices.InterfaceClassGuid",
PKEY_PNPX_ServiceControlUrl
},
"System.Devices.DeviceInstanceId:=\"" + id + "\" AND System.Devices.InterfaceClassGuid:=\"{" + ConnectionManagerInterfaceClass.ToString() + "}\"")).FirstOrDefault();
if (ConnectionManagerInterface == null)
{
continue;
}
if (!ConnectionManagerInterface.Properties.ContainsKey(PKEY_PNPX_ServiceControlUrl))
{
continue;
}
var connectionManagerUrl =
new Uri((string)ConnectionManagerInterface.Properties[PKEY_PNPX_ServiceControlUrl]);
//
var AVTransportInterface = (await Windows.Devices.Enumeration.Pnp.PnpObject.FindAllAsync(
Windows.Devices.Enumeration.Pnp.PnpObjectType.DeviceInterface, new List <string>()
{
"System.Devices.DeviceInstanceId",
"System.Devices.InterfaceClassGuid",
PKEY_PNPX_ServiceControlUrl
},
"System.Devices.DeviceInstanceId:=\"" + id + "\" AND System.Devices.InterfaceClassGuid:=\"{" +
AVTransportInterfaceClass.ToString() + "}\"")).FirstOrDefault();
if (AVTransportInterface != null &&
!AVTransportInterface.Properties.ContainsKey(PKEY_PNPX_ServiceControlUrl))
{
AVTransportInterface = null;
}
var avTransportUrl = AVTransportInterface == null
? null
: new Uri((string)AVTransportInterface.Properties[PKEY_PNPX_ServiceControlUrl]);
//
var Container = await Windows.Devices.Enumeration.Pnp.PnpObject.CreateFromIdAsync(
Windows.Devices.Enumeration.Pnp.PnpObjectType.DeviceContainer,
containerId.ToString(), new List <string>() { "System.Devices.Connected", "System.Devices.FriendlyName" });
if (Container == null)
{
continue;
}
if (!Container.Properties.ContainsKey("System.Devices.Connected"))
{
continue;
}
if (!Container.Properties.ContainsKey("System.Devices.FriendlyName"))
{
continue;
}
var connected = (bool)Container.Properties["System.Devices.Connected"];
var friendlyName = (string)Container.Properties["System.Devices.FriendlyName"];
if (connected)
{
var rend = new MediaRendererDevice()
{
FriendlyName = friendlyName,
ConnectionManagerControlUrl = connectionManagerUrl,
AVTransportControlUrl = avTransportUrl,
//LocalUri = localUri
};
results.Add(rend);
}
}
return(results.ToArray());
}
