internal static async Task SendUrlForConversationId(string threadId)
{
RealTimeMediaCall mediaCall = ActiveMediaCalls.Values.FirstOrDefault(x => (x.ThreadId == threadId));
if (mediaCall == null)
{
Log.Warning(new CallerInfo(), LogContext.FrontEnd, $"No active mediacall for {threadId}");
return;
}
await SendMessageForCall(mediaCall);
}
internal static async Task SendMessageForCall(RealTimeMediaCall mediaCall)
{
string url = $"{Service.Instance.Configuration.AzureInstanceBaseUrl}/{HttpRouteConstants.CallSignalingRoutePrefix}/{HttpRouteConstants.Image}";
url = url.Replace("{callid}", mediaCall.CallId);
try
{
await MessageSender.SendMessage(mediaCall.ThreadId, url);
}
catch (Exception ex)
{
Log.Error(new CallerInfo(), LogContext.FrontEnd, $"[{mediaCall.CallId}] Exception in sending chat {ex}");
}
}
/// <summary>
/// Create a new instance of the MediaSession.
/// </summary>
public MediaSession(string id, string correlationId, RealTimeMediaCall call)
{
_correlationId = correlationId;
this.Id = id;
RealTimeMediaCall = call;
Log.Info(new CallerInfo(), LogContext.FrontEnd, $"[{this.Id}]: Call created");
try
{
_audioSocket = new AudioSocket(new AudioSocketSettings
{
StreamDirections = StreamDirection.Recvonly,
SupportedAudioFormat = AudioFormat.Pcm16K, // audio format is currently fixed at PCM 16 KHz.
CallId = correlationId
});
Log.Info(new CallerInfo(), LogContext.FrontEnd, $"[{this.Id}]:Created AudioSocket");
// video socket
_videoSocket = new VideoSocket(new VideoSocketSettings
{
StreamDirections = StreamDirection.Recvonly,
ReceiveColorFormat = VideoColorFormat.NV12,
CallId = correlationId
});
Log.Info(new CallerInfo(), LogContext.FrontEnd, $"[{this.Id}]: Created VideoSocket");
//audio socket events
_audioSocket.DominantSpeakerChanged += OnDominantSpeakerChanged;
//Video socket events
_videoSocket.VideoMediaReceived += OnVideoMediaReceived;
MediaConfiguration = MediaPlatform.CreateMediaConfiguration(_audioSocket, _videoSocket);
Log.Info(new CallerInfo(), LogContext.FrontEnd, $"[{this.Id}]: MediaConfiguration={MediaConfiguration.ToString(Formatting.Indented)}");
}
catch (Exception ex)
{
Log.Error(new CallerInfo(), LogContext.FrontEnd, "Error in MediaSession creation" + ex.ToString());
Dispose();
throw;
}
}
/// <summary>
/// Get the image for a particular call
/// </summary>
/// <param name="conversationResult"></param>
/// <returns></returns>
public static HttpResponseMessage GetVideoImageResponse(string callId)
{
RealTimeMediaCall mediaCall = RealTimeMediaCall.GetCallForCallId(callId);
if (mediaCall == null)
{
return(new HttpResponseMessage(HttpStatusCode.NotFound));
}
MediaSession mediaSession = mediaCall.MediaSession;
Log.Info(new CallerInfo(), LogContext.FrontEnd, $"[{callId}] Received request to retrieve image for call");
Bitmap bitmap = mediaSession.CurrentVideoImage;
if (bitmap == null)
{
return(new HttpResponseMessage(HttpStatusCode.NotFound));
}
HttpResponseMessage response = new HttpResponseMessage(HttpStatusCode.OK);
response.Content = new PushStreamContent((targetStream, httpContext, transportContext) =>
{
using (targetStream)
{
bitmap.Save(targetStream, System.Drawing.Imaging.ImageFormat.Jpeg);
}
}, new MediaTypeHeaderValue("image/jpeg"));
response.Headers.Add("Cache-Control", "private,must-revalidate,post-check=1,pre-check=2,no-cache");
string url = $"{Service.Instance.Configuration.AzureInstanceBaseUrl}/{HttpRouteConstants.CallSignalingRoutePrefix}/{HttpRouteConstants.Image}";
url = url.Replace("{callid}", callId);
response.Headers.Add("Refresh", $"3; url={url}");
return(response);
}
