public static HresultResponse FromResponse(WebcamResponse response)
{
var start = new HresultResponse();
start.type = response.type;
start.hr = BitConverter.ToInt32(response.packet, 0);
return(start);
}
IEnumerator <ITask> DoEnumFormats(CameraInstance camera, Port <List <Format> > resultPort)
{
List <Format> formats = new List <Format>();
new OpenRequest(camera.DevicePath).Send(_client);
HresultResponse hr = null;
do
{
yield return(Arbiter.Receive <HresultResponse>(false, _pipeDataPort, success => hr = success));
} while (hr.type != WebcamResponse.OpenDevices);
new FormatRequest().Send(_client);
for (; ;)
{
FormatResponse response = null;
HresultResponse done = null;
yield return(Arbiter.Choice(
Arbiter.Receive <FormatResponse>(false, _pipeDataPort, success => response = success),
Arbiter.Receive <HresultResponse>(false, _pipeDataPort, hresult => done = hresult)
));
if (done != null)
{
if (done.type == WebcamResponse.EnumeratFormats)
{
break;
}
}
else
{
var format = new Format(
response.Width,
response.Height,
0,
0,
response.Compression
);
formats.Add(format);
}
}
resultPort.Post(formats);
}
IEnumerator <ITask> WaitForEnumResponses(Port <List <CameraInstance> > resultPort)
{
List <CameraInstance> cameras = new List <CameraInstance>();
for (; ;)
{
EnumResponse response = null;
HresultResponse done = null;
yield return(Arbiter.Choice(
Arbiter.Receive <EnumResponse>(false, _pipeDataPort, success => response = success),
Arbiter.Receive <HresultResponse>(false, _pipeDataPort, hresult => done = hresult)
));
if (done != null)
{
if (done.type == WebcamResponse.EnumerateDevices)
{
break;
}
}
else
{
var camera = new CameraInstance();
camera.DevicePath = response.device;
camera.FriendlyName = response.name;
cameras.Add(camera);
}
}
foreach (var camera in cameras)
{
var formatPort = EnumFormats(camera);
yield return(Arbiter.Receive(false, formatPort, success => camera.SupportedFormats = success));
}
resultPort.Post(cameras);
}