private void UpdateState(Uri uri, string method, string content, HttpListenerContext context)
{
HttpListenerResponse response = context.Response;
try
{
DVRBResult result;
// parse xml body
XmlSchemas.server_state body = new XmlSchemas.server_state();
body.ReadXml(new System.IO.StringReader(content));
log.Debug("updateState:: Recording --> " + body.recording[0].state);
log.Debug("updateState:: Streaming --> " + body.streaming[0].state);
log.Debug("updateState:: vod --> " + body.vod[0].state);
if (this.dvrbConfig == null && !(body.recording[0].state == "stop" && body.streaming[0].state == "stop" && body.vod[0].state == "stop"))
{
throw new System.Exception("System is not configured");
}
// recording management
switch (body.recording[0].state)
{
case "stop":
result = this.encoder.EnableRecording(false);
if (!result.Succeeded)
{
throw new System.Exception("encoder.EnableRecording returns ERROR [" + result.Code + "]:" + result.Description);
}
break;
case "play":
result = this.encoder.EnableRecording(true);
if (!result.Succeeded)
{
throw new System.Exception("encoder.EnableRecording returns ERROR [" + result.Code + "]:" + result.Description);
}
break;
default:
throw new System.Exception("Unknown record state received: " + body.recording[0].state);
}
// streaming and OnDemand management
Streaming.Modes state = Streaming.Modes.None;
if (body.streaming[0].state == "play" &&
body.vod[0].state == "stop")
{
state = Streaming.Modes.Live;
}
else if (body.streaming[0].state == "stop" &&
body.vod[0].state == "play")
{
state = Streaming.Modes.OnDemand;
}
else if (body.streaming[0].state == "play" &&
body.vod[0].state == "play")
{
state = Streaming.Modes.All;
}
else if (body.streaming[0].state == "stop" &&
body.vod[0].state == "stop")
{
state = Streaming.Modes.None;
}
else
{
throw new System.Exception("Unknown state received: VOD = " + body.vod[0].state + ", Live = " + body.streaming[0].state);
}
// Change state
this.streaming.Active = state;
// If Live is active we must start encoder.
if ((state & Streaming.Modes.Live) != 0)
{
result = this.encoder.Start();
if (!result.Succeeded)
{
throw new System.Exception("wmEncoder.Start returns ERROR [" + result.Code + "]:" + result.Description);
}
}
else
{
if (body.recording[0].state == "stop")
{
result = this.encoder.Stop();
if (!result.Succeeded)
{
throw new System.Exception("wmEncoder.Stop returns ERROR [" + result.Code + "]:" + result.Description);
}
}
}
// If OnDemand or Live is active we must start the streaming server.
if (state != Streaming.Modes.None)
{
bool allow_unicast = false;
if (System.Int32.Parse(this.dvrbConfig.output[0].GetliveRows()[0].allow_unicast) > 0)
{
allow_unicast = true;
}
if ((state & Streaming.Modes.Live) != 0)
{
result = this.streaming.SetLiveStreamingInfo(
internalAddr,
internalPort,
allow_unicast,
this.dvrbConfig.output[0].GetliveRows()[0].mgroup,
System.Int32.Parse(this.dvrbConfig.output[0].GetliveRows()[0].port));
if (!result.Succeeded)
{
throw new System.Exception("m_Streaming.SetLiveStreamingInfo ERROR: " + result.Description);
}
}
result = this.streaming.Start();
if (!result.Succeeded)
{
throw new System.Exception("m_Streaming.Start returns ERROR [" + result.Code + "]:" + result.Description);
}
}
else
{
result = this.streaming.Stop();
if (!result.Succeeded)
{
throw new System.Exception("m_Streaming.Stop returns ERROR [" + result.Code + "]:" + result.Description);
}
}
this.SendResponse(200, "OK", response);
}
catch (System.Exception e)
{
log.Error("updateState:: Bad request from " + context.Request.UserHostAddress + ", exception :" + e.Message);
this.SendResponse(400, "Bad Request: " + e.Message, response);
}
}
private void GetState(Uri uri, string method, string content, HttpListenerContext context)
{
HttpListenerResponse response = context.Response;
XmlSchemas.server_state body = new XmlSchemas.server_state();
// Get recording state
WMEncoderLib.WMENC_ARCHIVE_STATE record_state = this.encoder.RecordingState;
switch (record_state)
{
case WMEncoderLib.WMENC_ARCHIVE_STATE.WMENC_ARCHIVE_RUNNING:
body.recording.AddrecordingRow("play");
break;
case WMEncoderLib.WMENC_ARCHIVE_STATE.WMENC_ARCHIVE_PAUSED:
body.recording.AddrecordingRow("pause");
break;
case WMEncoderLib.WMENC_ARCHIVE_STATE.WMENC_ARCHIVE_STOPPED:
body.recording.AddrecordingRow("stop");
break;
}
// get Live state
if (this.streaming.LiveStreamingState == Streaming.State.Running)
{
body.streaming.AddstreamingRow("play");
}
else
{
body.streaming.AddstreamingRow("stop");
}
// get OnDemand state
if (this.streaming.OnDemandState == Streaming.State.Running)
{
body.vod.AddvodRow("play");
}
else
{
body.vod.AddvodRow("stop");
}
log.Debug("getState:: Recording --> " + body.recording[0].state);
log.Debug("getState:: Streaming --> " + body.streaming[0].state);
log.Debug("getState:: vod --> " + body.vod[0].state);
StringWriter sw = new StringWriter();
body.WriteXml(sw);
string xml = sw.ToString();
this.SendResponse(xml, "application/xml", 200, "OK", response);
}
