Exemplo n.º 1
0
        public VideoFrame GetCurrentFrame()
        {
            //Profiler.Profile.BeginBlock("GetFrame");

            //  GC.Collect();

            long ctick = Environment.TickCount;

            if (LastTick == 0)
            {
                LastTick = ctick;
            }

            if (Paused)
            {
                LastTick = ctick;
                //  Profiler.Profile.EndBlock("GetFrame");
                return(CurrentFrame);
            }

            double ts = (double)(ctick - LastTick) / 1000.0;

            LastTick = ctick;

            CLOCK += ts;

            double dt = CLOCK - TimeDelta; // - timeDelay * 30;

            // Console.WriteLine("Clock:" + dt);

            if (Frames.Count == 0)
            {
                return(null);
            }

            if (CurrentFrame == null)
            {
                if (Frames.Count == 0)
                {
                    return(null);
                }
                FrameMutex.WaitOne();
                CurrentFrame = Frames.Dequeue();
                FrameMutex.ReleaseMutex();
            }

            if (CurrentFrame.DPTS <= dt)
            {
            }
            else
            {
                //Profiler.Profile.EndBlock("GetFrame");
                return(CurrentFrame);
            }

            if (CurrentFrame != null)
            {
                if (Frames.Count > 0)
                {
                    //  CurrentFrame.Img.Delete();

                    CurrentFrame = Frames.Dequeue();

                    // CLOCK = CurrentFrame.DPTS;

                    double dd = (double)CurrentFrame.DDELAY;
                    dd += ((double)CurrentFrame.Pict * (CurrentFrame.DDELAY * 0.5));

                    timeDelay = dd;

                    //dd = dd * 1000;

                    dd = dd * 50;
                    //LastTick += (long)dd;

                    //CLOCK = CLOCK += dd;
                    //CLOCK = CLOCK -= dd;
                }
                //Profiler.Profile.EndBlock("GetFrame");
                return(CurrentFrame);
            }
            if (Frames.Count == 0)
            {
                //    Profiler.Profile.EndBlock("GetFrame");
                return(null);
            }
            if (CurrentFrame == null)
            {
                FrameMutex.WaitOne();
                CurrentFrame = Frames.Dequeue();
                FrameMutex.ReleaseMutex();
            }
            //Profiler.Profile.EndBlock("GetFrame");
            return(CurrentFrame);
        }
Exemplo n.º 2
0
        public void Thr_Decode()
        {
            while (true)
            {
                if (!Paused)
                {
                    if (gotAudioTime == false)
                    {
                        if (VideoIn.audioHasBegun() == 1)
                        {
                            gotAudioTime   = true;
                            audioStartTime = Environment.TickCount;
                        }
                    }
                    else
                    {
                        long curTime = Environment.TickCount;

                        long timed = curTime - audioStartTime;
                        AUDIOCLOCK = ((double)(timed) / 1000.0);
                    }



                    while (true)
                    {
                        //   FrameMutex.WaitOne();
                        if (Frames.Count == 0)
                        {
                            //  FrameMutex.ReleaseMutex();
                            break;
                        }
                        FrameMutex.WaitOne();
                        VideoFrame frm = null;
                        while (true)
                        {
                            frm = Frames.Peek();
                            if (frm != null)
                            {
                                break;
                            }
                        }

                        FrameMutex.ReleaseMutex();

                        if (frm.DPTS < AUDIOCLOCK)
                        {
                            FrameMutex.WaitOne();
                            Frames.Dequeue();
                            FrameMutex.ReleaseMutex();
                        }
                        else
                        {
                            //    FrameMutex.ReleaseMutex();
                            break;
                        }
                        //  FrameMutex.ReleaseMutex();
                    }

                    if (Frames.Count > 0)
                    {
                        FrameMutex.WaitOne();

                        VideoFrame frm = null;
                        while (true)
                        {
                            frm = Frames.Peek();
                            if (frm != null)
                            {
                                break;
                            }
                        }


                        double ft = frm.DPTS;

                        FrameMutex.ReleaseMutex();
                        TimeDelta = ft - AUDIOCLOCK;
                    }
                    //FrameMutex.ReleaseMutex();
                    // FrameMutex.WaitOne();

                    FrameMutex.WaitOne();
                    if (Frames.Count < 8)
                    {
                        DecodeNextFrame();
                    }
                    FrameMutex.ReleaseMutex();
                    // FrameMutex.ReleaseMutex();
                }
                //  GC.Collect();
                //  T//hread.Sleep(2);
            }
        }