public async Task<HttpResponseMessage> Get(string hubName, string node)
{
string hubId = await _lookupToken.GetHomeHubId(User);
var response = new HttpResponseMessage(HttpStatusCode.OK)
{
Content = new PushStreamContent(async (outputStream, httpContent, transportContext) =>
{
Services.Log.Info(string.Format("Requesting camera stream from {0} - {1}", node, hubId));
using (var chatHub = ChatHub.Get(hubId))
{
chatHub.MessageToHome(new HubCameraCommand
{
Node = node,
Active = true,
Type = "h264"
});
try
{
var totalData = 0;
using (var videoHub = VideoHub.Get(hubId, node))
{
using (var videoWaitable = new VideoHubWaitable(videoHub))
{
var moreData = true;
while (moreData)
{
var videoData = await videoWaitable.WaitData();
if (videoData.Length != 0)
{
totalData += videoData.Length;
Debug.WriteLine(string.Format("uploaded: {0}", totalData));
await outputStream.WriteAsync(videoData.Bytes, 0, videoData.Length);
}
else
{
moreData = false;
}
}
}
}
}
catch (HttpException ex)
{
if (ex.ErrorCode == -2147023667) // The remote host closed the connection.
{
return;
}
}
finally
{
// Close output stream as we are done
outputStream.Close();
chatHub.MessageToHome(new HubCameraCommand
{
Node = node,
Active = false,
Type = "h264"
});
}
}
}, new MediaTypeHeaderValue("video/webm")) // "text/plain"
};
return response;
}
private async Task PipeSnapshotImage(string hubId, string node, Stream outputStream, bool thumbnail, bool singleImage)
{
int duration = thumbnail || singleImage ? ShortTimelapse : LongTimelapse;
CameraActivator.Trigger(hubId, node, duration);
using (var videoHub = VideoHub.Get(hubId, node))
{
using (var videoWaitable = new VideoHubWaitable(videoHub, true))
{
var imageSize = 0;
var videoData = await videoWaitable.WaitData();
if (videoData.Length != 0 &&
!(videoData.Length == 1 && videoData.Bytes[0] == 0))
{
var videoBytes = videoData.Bytes;
var videoLength = videoData.Length;
if (thumbnail)
{
videoBytes = CreateThumbnail(videoBytes, videoLength);
videoLength = videoBytes.Length;
}
await outputStream.WriteAsync(videoBytes, 0, videoLength);
imageSize += videoData.Length;
CameraActivator.Received(hubId, node);
}
// Services.Log.Info(string.Format("Sent camera snapshot with {0} bytes", imageSize));
}
}
}
