// 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); }