void EventsTimeChanged(object sender, MediaPlayerTimeChanged e)
{
Time = e.NewTime;
if (LastFrame == DateTime.MinValue)
{
var sz = _mPlayer.GetVideoSize(0);
_source.settings.vlcWidth = sz.Width;
_source.settings.vlcHeight = sz.Height;
}
LastFrame = Helper.Now;
}
private void EventsPlayerPositionChanged(object sender, MediaPlayerPositionChanged e)
{
Size size = _player.GetVideoSize(0);
if (!size.IsEmpty)
{
_player.Events.PlayerPositionChanged -= EventsPlayerPositionChanged;
_player.Events.PlayerEncounteredError -= EventsPlayerEncounteredError;
UISync.Execute(() => SetVideoSize(size));
UISync.Execute(StopPlayer);
}
}
protected override void DoBackgroundWork()
{
try
{
frameEncodeInterval = 1000 / this.cameraSpec.vlc_transcode_fps;
w = this.cameraSpec.h264_video_width;
h = this.cameraSpec.h264_video_height;
if (w <= 0 || h <= 0)
{
w = h = 0;
}
IVideoPlayer player = null;
while (!Exit)
{
try
{
frameNumber = 0;
lastFrameEncoded = 0;
nextFrameEncodeTime = 0;
lastTimestampUpdateTime = -1;
frameTimer.Start();
IMediaPlayerFactory factory = new MediaPlayerFactory();
player = factory.CreatePlayer <IVideoPlayer>();
player.Events.TimeChanged += new EventHandler <Declarations.Events.MediaPlayerTimeChanged>(Events_TimeChanged);
int b = cameraSpec.vlc_transcode_buffer_time;
string[] args = new string[] { ":rtsp-caching=" + b, ":realrtsp-caching=" + b, ":network-caching=" + b, ":udp-caching=" + b, ":volume=0", cameraSpec.wanscamCompatibilityMode ? ":demux=h264" : "", cameraSpec.wanscamCompatibilityMode ? ":h264-fps=" + cameraSpec.wanscamFps : "" };
string url = cameraSpec.imageryUrl;
if (cameraSpec.wanscamCompatibilityMode)
{
url = "http://127.0.0.1:" + MJpegWrapper.cfg.webport + "/" + cameraSpec.id + ".wanscamstream";
}
IMedia media = factory.CreateMedia <IMedia>(url, args);
memRender = player.CustomRenderer2;
//memRender.SetExceptionHandler(ExHandler);
memRender.SetCallback(delegate(Bitmap frame)
{
// We won't consume the bitmap here. For efficiency's sake under light load, we will only encode the bitmap as jpeg when it is requested by a client.
frameNumber++;
if (!player.Mute)
{
player.ToggleMute();
}
if (frameTimer.ElapsedMilliseconds >= nextFrameEncodeTime)
{
EventWaitHandle oldWaitHandle = newFrameWaitHandle;
newFrameWaitHandle = new EventWaitHandle(false, EventResetMode.ManualReset);
oldWaitHandle.Set();
}
//long time = frameCounter.ElapsedMilliseconds;
//if (time >= nextFrameEncodeTime)
//{
// lastFrame = ImageConverter.GetJpegBytes(frame);
// nextFrameEncodeTime = time + frameEncodeInterval;
//}
//latestBitmap = new Bitmap(frame); // frame.Clone() actually doesn't copy the data and exceptions get thrown
});
memRender.SetFormat(new BitmapFormat(w, h, ChromaType.RV24));
//memRender.SetFormatSetupCallback(formatSetupCallback);
player.Open(media);
player.Play();
if (w == 0)
{
// Need to auto-detect video size.
while (!Exit)
{
Thread.Sleep(50);
Size s = player.GetVideoSize(0);
if (s.Width > 0 && s.Height > 0)
{
lock (MJpegWrapper.cfg)
{
w = this.cameraSpec.h264_video_width = (ushort)s.Width;
h = this.cameraSpec.h264_video_height = (ushort)s.Height;
MJpegWrapper.cfg.Save(Globals.ConfigFilePath);
}
throw new Exception("Restart");
}
}
}
else
{
while (!Exit)
{
Thread.Sleep(50);
}
}
}
catch (ThreadAbortException ex)
{
throw ex;
}
catch (Exception ex)
{
if (ex.Message != "Restart")
{
Logger.Debug(ex);
int waitedTimes = 0;
while (!Exit && waitedTimes++ < 100)
{
Thread.Sleep(50);
}
}
}
finally
{
frameTimer.Stop();
frameTimer.Reset();
if (player != null)
{
player.Stop();
}
newFrameWaitHandle.Set();
}
}
}
catch (ThreadAbortException)
{
}
catch (Exception ex)
{
Logger.Debug(ex);
}
newFrameWaitHandle.Set();
}
