C# IMediaSeeking.SetTimeFormat方法代码示例

        public PlayerCore(string file)
        {
            graphBuilder = (new FilterGraph()) as IFilterGraph2;
            if (graphBuilder == null) return;
            mediaControl = graphBuilder as IMediaControl;
            mediaSeeking = graphBuilder as IMediaSeeking;
            audioControl = graphBuilder as IBasicAudio;
            if (mediaControl == null || mediaSeeking == null || audioControl == null) return;
            //int hr = mediaControl.RenderFile(file);
            FileInfo info = new FileInfo(file);
            ISupport support = Supports.Instance[info.Extension];
            int hr = -1;
            if (support != null)
                hr = support.RenderGraph(graphBuilder, file);
            else
                hr = mediaControl.RenderFile(file);

            fileName = file;
            if (hr != 0) errorStack.Push(hr);
            if (hr != 0) return;
            mediaSeeking.SetTimeFormat(TimeFormat.MediaTime);
            isValidate = true;
            window = graphBuilder as IVideoWindow;
            if (window != null)
            {
                int width = 0;
                int height = 0;
                window.get_Width(out width);
                window.get_Height(out height);
                nativeSize = new Size(width, height);
            }
        }

        /// <summary>
        /// Setup the IMediaSeeking interface
        /// </summary>
        protected void SetMediaSeekingInterface(IMediaSeeking mediaSeeking)
        {
            m_mediaSeeking = mediaSeeking;

            if (mediaSeeking == null)
            {
                CurrentPositionFormat = MediaPositionFormat.None;
                Duration = 0;
                return;
            }

            /* Get our prefered DirectShow TimeFormat */
            Guid preferedFormat = ConvertPositionFormat(PreferedPositionFormat);

            /* Attempt to set the time format */
            mediaSeeking.SetTimeFormat(preferedFormat);

            Guid currentFormat;

            /* Gets the current time format
             * we may not have been successful
             * setting our prefered format */
            mediaSeeking.GetTimeFormat(out currentFormat);

            /* Set our property up with the right format */
            CurrentPositionFormat = ConvertPositionFormat(currentFormat);

            SetDuration();
        }

        private void loadVideo(String videoPath)
        {
            videoFilepath = videoPath;
                videoFileName.Text = getDisplayVideoName();

                if (graph != null)
                {
                    graph = null;

                }
                if (mediaControl != null)
                {
                    // Stop media playback
                    this.mediaControl.Stop();
                    mediaControl = null;
                }

                if (videoWindow != null)
                {
                    videoWindow.put_Owner(IntPtr.Zero);
                    videoWindow = null;
                }

                if (mediaSeeking != null)
                {

                    mediaSeeking = null;
                }
                if (basicAudio != null)
                {

                    basicAudio = null;
                }
                GC.Collect();

               /* if (mediaPosition != null)
                {
                    mediaPosition = null;
                }*/

                graph = (IGraphBuilder)new FilterGraph();
                mediaControl = (IMediaControl)graph;
                //mediaPosition = (IMediaPosition)graph;
                videoWindow = (IVideoWindow)graph;
                mediaSeeking = (IMediaSeeking)graph;
                basicAudio = (IBasicAudio)graph;

                AviSplitter spliter = new AviSplitter();
                graph.AddFilter((IBaseFilter)spliter, null);
                graph.RenderFile(videoPath, null);
                graph.SetDefaultSyncSource();

                /*
                 * AMSeekingSeekingCapabilities cap = AMSeekingSeekingCapabilities.CanGetCurrentPos;
                if (mediaSeeking.CheckCapabilities(ref cap) > 0)
                {
                    this.consoleErreur.AppendText("Impossible de recuperer la position de la frame");
                }
                 * */

                videoWindow.put_Owner(videoPanel.Handle);

                videoWindow.put_MessageDrain(videoPanel.Handle);

                videoWindow.put_WindowStyle(WindowStyle.Child);
                videoWindow.put_WindowStyleEx(WindowStyleEx.ControlParent);
                videoWindow.put_Left(0);
                videoWindow.put_Top(0);
                videoWindow.put_Width(videoPanel.Width);
                videoWindow.put_Height(videoPanel.Height);

                //positionTrackbar.Enabled = true;
                speedTrackBar.Enabled = true;
                mediaSeeking.SetTimeFormat(TimeFormat.Frame);

                double rate;
                mediaSeeking.GetRate(out rate);
                rateText.Text = rate.ToString();
                speedTrackBar.Value = (int)(speedTrackBar.Maximum * rate / 2);

                trackBar1.Value = trackBar1.Maximum / 2;
                this.basicAudio.put_Volume(-5000 + 5000 * trackBar1.Value / trackBar1.Maximum);
            //mediaPosition.put_Rate(0.5);
                running = false;
                frameChanged = false;
        }

 private void CreateGraph()
 {
     graphBuilder = (IGraphBuilder)new FilterGraph();
     graphBuilder.RenderFile(tempFileName, null);
     mediaControl = (IMediaControl)graphBuilder;
     mediaSeeking = (IMediaSeeking)graphBuilder;
     mediaEvent = (IMediaEventEx)graphBuilder;
     //var filter = new MpqFileSourceFilter(File);
     //DsError.ThrowExceptionForHR(graphBuilder.AddFilter(filter, filter.Name));
     //DsError.ThrowExceptionForHR(graphBuilder.Render(filter.OutputPin));
     mediaSeeking.GetCapabilities(out seekingCapabilities);
     mediaSeeking.SetTimeFormat(TimeFormat.MediaTime);
     mediaEvent.SetNotifyWindow(Handle, WM_GRAPHNOTIFY, IntPtr.Zero);
 }

//.........这里部分代码省略.........
                    vidScaleFactor.Text = "50%";
                };

                double p = double.Parse(vidScaleFactor.Text.Substring(0, vidScaleFactor.Text.IndexOf('%')));
                p = p / 100;

                int new_x = (int)(x * p);
                int new_y = (int)(y * p);

                videoWindow.put_Height(new_x);
                videoWindow.put_Width(new_y);
                videoWindow.put_Owner(videoPanel.Handle);
                videoPanel.Size = new System.Drawing.Size(new_x, new_y);
                videoWindow.SetWindowPosition(0, 0, videoPanel.Width, videoPanel.Height);
                videoWindow.put_WindowStyle(WindowStyle.Child);
                videoWindow.put_Visible(DirectShowLib.OABool.True);

            }
            else vidScaleFactor.Enabled = false;

            // timer
            actualizaFrames.Interval = 10;
            actualizaFrames.Enabled = true;

            //mediaControl.Run();
            drawPositions();

            framesFin.Enabled = true;
            buttonAddFrameInicio.Enabled = buttonAddFrameInicio.Visible = true;
            framesInicio.Enabled = true;
            buttonAddFrameFin.Enabled = buttonAddFrameFin.Visible = true;
            butClip.Enabled = false;

            mediaSeeking.SetTimeFormat(DirectShowLib.TimeFormat.Frame);

            videoInfo.FrameTotal = VideoUnitConversion.getTotal(mediaSeeking, videoInfo.FrameRate);
            seekBar.Maximum = FrameTotal;
            seekBar.TickFrequency = seekBar.Maximum / 10;

            // VFW ( __ SOLO AVIs __ )

            try
            {
                AVIFileWrapper.AVIFileInit();
                int aviFile = 0;
                IntPtr aviStream;
                int res = AVIFileWrapper.AVIFileOpen(ref aviFile, fileName, 0x20, 0);
                res = AVIFileWrapper.AVIFileGetStream(aviFile, out aviStream, 1935960438, 0);

                videoInfo.KeyFrames = new ArrayList();
                int nFrames = FrameTotal;

                for (int i = 0; i < nFrames; i++)
                {
                    if (isKeyFrame(aviStream.ToInt32(), i))
                        videoInfo.KeyFrames.Add(i);
                }

                setStatus(videoInfo.KeyFrames.Count + " detectados");

                AVIFileWrapper.AVIStreamRelease(aviStream);
                AVIFileWrapper.AVIFileRelease(aviFile);
                AVIFileWrapper.AVIFileExit();
                KeyframesAvailable = true;
                /*
                nextK.Enabled = true;

        private void translateW_Load(object sender, EventArgs e)
        {
            //this.MaximumSize = this.Size;
            //this.MinimumSize = this.Size;
            toolStripStatusLabel2.Text = "Cargando el Asistente de Traducción...";
            // cargamos script
            autoComplete = new ArrayList();
            al = mW.al;
            gridCont.RowCount = al.Count;

            bool hasAutoComplete = (mW.script.GetHeader().GetHeaderValue("AutoComplete") != string.Empty);

            for (int i = 0; i < al.Count; i++)
            {
                lineaASS lass = (lineaASS)al[i];
                gridCont[0, i].Value = lass.personaje;
                if (!autoComplete.Contains(lass.personaje) && !hasAutoComplete)
                    if (lass.personaje.Trim()!="")
                        autoComplete.Add(lass.personaje);
                gridCont[1, i].Value = lass.texto;
            }
            if (hasAutoComplete) InsertAutoCompleteFromScript();

            labelLineaActual.Text = "1 de " + (al.Count) + " (0%)";
            textPersonaje.Text = gridCont[0, 0].Value.ToString();
            textOrig.Text = gridCont[1, 0].Value.ToString();

            // cargamos video

            graphBuilder = (IGraphBuilder)new FilterGraph();
            graphBuilder.RenderFile(videoInfo.FileName, null);
            mediaControl = (IMediaControl)graphBuilder;
            // mediaEventEx = (IMediaEventEx)this.graphBuilder;
            mediaSeeking = (IMediaSeeking)graphBuilder;
            mediaPosition = (IMediaPosition)graphBuilder;
            basicVideo = graphBuilder as IBasicVideo;
            basicAudio = graphBuilder as IBasicAudio;
            videoWindow = graphBuilder as IVideoWindow;

            try
            {
                int x, y; double atpf;
                basicVideo.GetVideoSize(out x, out y);
                basicVideo.get_AvgTimePerFrame(out atpf);
                videoInfo.FrameRate = Math.Round(1 / atpf, 3);

                int new_x = videoPanel.Width;
                int new_y = (new_x * y) / x;
                videoWindow.put_Height(new_x);
                videoWindow.put_Width(new_y);
                videoWindow.put_Owner(videoPanel.Handle);
                videoPanel.Size = new System.Drawing.Size(new_x, new_y);
                videoWindow.SetWindowPosition(0, 0, videoPanel.Width, videoPanel.Height);
                videoWindow.put_WindowStyle(WindowStyle.Child);
                videoWindow.put_Visible(DirectShowLib.OABool.True);
                mediaSeeking.SetTimeFormat(DirectShowLib.TimeFormat.Frame);

                mediaControl.Run();
            }
            catch { mW.errorMsg("Imposible cargar el vídeo. Debe haber algún problema con el mismo, y el asistente será muy inestable"); }
            // activamos timers & handlers

            timer1.Tick += new EventHandler(timer1_Tick);
            timer1.Enabled = true;
            timer2.Tick += new EventHandler(timer2_Tick);
            AutoSaveTimer.Tick += new EventHandler(timer3_Tick);
            AutoSaveTimer.Enabled = true;

            gridCont.CellClick += new DataGridViewCellEventHandler(gridCont_CellClick);
            textPersonaje.TextChanged += new EventHandler(textPersonaje_TextChanged);
            textTradu.TextChanged += new EventHandler(textTradu_TextChanged);
            textTradu.KeyUp += new KeyEventHandler(textBox1_KeyUp);
            textTradu.KeyDown += new KeyEventHandler(textTradu_KeyDown);
            textTradu.KeyPress += new KeyPressEventHandler(textTradu_KeyPress);
            textPersonaje.KeyDown += new KeyEventHandler(textPersonaje_KeyDown);
            textPersonaje.KeyPress += new KeyPressEventHandler(textPersonaje_KeyPress);
            button8.GotFocus += new EventHandler(button8_GotFocus);
            button9.GotFocus += new EventHandler(button9_GotFocus);
            gridCont.DoubleClick += new EventHandler(gridCont_DoubleClick);
            gridCont.SelectionChanged += new EventHandler(gridCont_SelectionChanged);
            gridCont.KeyUp += new KeyEventHandler(gridCont_KeyUp);
            listBox1.KeyUp += new KeyEventHandler(listBox1_KeyUp);
            textToAdd.KeyPress += new KeyPressEventHandler(textToAdd_KeyPress);
            progressBar1.MouseDown += new MouseEventHandler(progressBar1_MouseDown);
            tiempoInicio_.TimeValidated += new TimeTextBox.OnTimeTextBoxValidated(tiempo_TimeValidated);
            tiempoFin_.TimeValidated += new TimeTextBox.OnTimeTextBoxValidated(tiempo_TimeValidated);
            this.Move += new EventHandler(translateW_Move);

            //textTradu.ContextMenu = new ASSTextBoxRegExDefaultContextMenu(textTradu);

            mediaControl.Pause();

            // cargar de config

            try
            {
                checkAutoComplete.Checked = Convert.ToBoolean(mW.getFromConfigFile("translateW_autoC"));
                checkTagSSA.Checked = Convert.ToBoolean(mW.getFromConfigFile("translateW_tagSSA"));
                checkComment.Checked = Convert.ToBoolean(mW.getFromConfigFile("translateW_Comment"));
                checkVideo.Checked = Convert.ToBoolean(mW.getFromConfigFile("translateW_aud"));
//.........这里部分代码省略.........