private void DeliverSample(ComObject requestToken, IRtspSample packet)
{
using (var sample = MediaFactory.CreateSample()) {
using (var buffer = MediaFactory.CreateMemoryBuffer(packet.Buffer.Length)) {
int max, cur;
var ptr = buffer.Lock(out max, out cur);
Marshal.Copy(packet.Buffer, 0, ptr, packet.Buffer.Length);
buffer.CurrentLength = packet.Buffer.Length;
buffer.Unlock();
sample.AddBuffer(buffer);
}
sample.SampleTime = packet.SampleTime;
if (requestToken.NativePointer != IntPtr.Zero)
{
sample.Set(SampleAttributeKeys.Token, requestToken);
}
if (packet.IsKeyFrame)
{
sample.Set(SampleAttributeKeys.CleanPoint, true);
}
if (packet.Discontinuity)
{
sample.Set(SampleAttributeKeys.Discontinuity, true);
}
if (Type == StreamType.Video)
{
sample.Set(NaluAttributeKeys.LengthInformation, packet.LengthInfo.Select(BitConverter.GetBytes).SelectMany(b => b).ToArray());
}
//Trace.WriteLine($"RtspMediaStream<{Type}>::DeliverSample() SampleTime={packet.SampleTime / 10000}(ms) Length={packet.Buffer.Length}");
_eventGenerator.QueueEventParamUnk(MediaEventTypes.MediaSample, Guid.Empty, Result.Ok, sample);
}
requestToken.Dispose();
_debugSaveStream?.Write(packet.Buffer, 0, packet.Buffer.Length);
}
private void HandlePacket(IRtspSample packet)
{
//if(!IsActive || !MediaSource.IsPlaying || packet == null) return;
//Trace.WriteLine($"RtspMediaStream<{Type}>::HandlePacket(): Length={packet.Buffer.Length}");
try {
if (!packet.IsKeyFrame && _sampleQueue.Count > MaxQueueLength)
{
// Sample queue is too long. Discard non-Key frame
Debug.WriteLine($"RtspMediaStream<{Type}>::HandlePacket(): SampleQueue is too long. Discard non-Key frame.");
return;
}
_sampleQueue.Enqueue(packet);
if (!_requestQueue.IsEmpty)
{
DeliverSamples();
}
_isSampleQueueEmpty.OnNext(_sampleQueue.IsEmpty);
//if(Type == StreamType.Video) {
// Debug.WriteLine($"RtspMediaStream<{Type}>::HandlePacket(): SampleQueue={_sampleQueue.Count} RequestQueue={_requestQueue.Count}");
//}
} catch (Exception ex) {
if (!MediaSource.IsShutdown)
{
_eventGenerator.QueueEventParamErr(ex.HResult);
}
Debug.WriteLine($"RtspMediaStream<{Type}>::HandlePacket(): Error={ex.Message}");
//throw;
}
}
