// Submit video for analysis
// Returns the URL that can be used to retrieve status/result
private async Task <string> SubmitVideo(string url)
{
HttpResponseMessage rec = await Cli.PostResponseAsync("https://api.projectoxford.ai/emotion/v1.0/recognizeinvideo?outputStyle=perFrame", "{\"url\":\"" + url + "\"}");
log.Text += "Done";
string opurl = null;
foreach (var k in rec.Headers)
{
if (k.Key == "Operation-Location")
{
opurl = k.Value.First();
}
}
return(opurl);
}