//
//method that update the graph filter and/or gui controls
//when we have received a message that the media file is done playing
//
private void OnClipCompleted()
{
graphState = State.Stopped;
if (mediaCtrl == null)
{
return;
}
mediaCtrl.Stop();
if (!bThru && bLoop)
{
if (isSeeking)
{
mediaPos.put_CurrentPosition(0.0);
mediaCtrl.Run();
}
}
if (bThru)
{
if ((movieFiles.SelectedIndex + 1) < nbFiles)
{
movieFiles.SelectedIndex++;
}
else
{
movieFiles.SelectedIndex = 0;
}
}
}
public void GrabFrame(string FileName, string outputFileName, double timeindex)
{
FilterState state;
int tr = 0;
CloseInterfaces();
BuildGraph(FileName);
int hr = mediaPosition.put_CurrentPosition(timeindex); // Seeking. .Run();
mediaControl.Run();
tr = mediaControl.GetState(0, out state);
while (state != FilterState.Running && tr != 0)
{
tr = mediaControl.GetState(0, out state);
}
;
mediaControl.Pause();
tr = mediaControl.GetState(0, out state);
while (state != FilterState.Running && tr != 0)
{
tr = mediaControl.GetState(0, out state);
}
;
// DsError.ThrowExceptionForHR(hr);
snapImage(outputFileName);
CloseInterfaces();
}
private void trackBar1_Scroll(object sender, EventArgs e)
{
if (mediaPosition != null)
{
mediaPosition.put_CurrentPosition(trackBar1.Value);
}
}
public void SkipForward(double percentagetoskip)
{
//double factor = percentagetoskip / 100;
// If we are playing
if (m_State == GraphState.Running)
{
int hr = m_mediaCtrl.Pause();
DsError.ThrowExceptionForHR(hr);
m_State = GraphState.Paused;
DirectShowLib.OABool result;
m_mediaPosition.CanSeekForward(out result);
if (result == OABool.True)
{
//double plltime;
//m_mediaPosition.get_StopTime(out plltime);
//m_mediaPosition.put_CurrentPosition(plltime * factor);
m_mediaPosition.put_CurrentPosition(percentagetoskip);
hr = m_mediaCtrl.Run();
DsError.ThrowExceptionForHR(hr);
m_State = GraphState.Running;
}
}
}
// Reset the clip back to the beginning
public void Rewind()
{
int hr;
IMediaPosition imp = m_FilterGraph as IMediaPosition;
hr = imp.put_CurrentPosition(0);
}
protected override void SetMediaPosition(double pos)
{
if (mediaPosition != null)
{
int hr = mediaPosition.put_CurrentPosition(pos / durationScaleFactor);
DsError.ThrowExceptionForHR(hr);
}
}
// Reset the clip back to the beginning
public void Rewind()
{
int hr;
IMediaPosition imp = m_graphBuilder as IMediaPosition;
hr = imp.put_CurrentPosition(0);
}
/// <summary>Reset the clip back to the beginning</summary>
public void Rewind()
{
lock (m_controls_lock)
{
if (m_media_position != null)
{
DsError.ThrowExceptionForHR(m_media_position.put_CurrentPosition(0));
}
}
}
/// <summary>
/// Rewinds the video to the start and stops
/// </summary>
public void Rewind()
{
IMediaPosition imp = fg as IMediaPosition;
if (imp != null)
{
imp.put_CurrentPosition(0);
}
// force a new play
Stop();
}
public override void SeekRelative(double dTime)
{
if (_state != PlayState.Init)
{
if (_mediaCtrl != null && mediaPos != null)
{
double dCurTime;
mediaPos.get_CurrentPosition(out dCurTime);
dTime = dCurTime + dTime;
if (dTime < 0.0d)
{
dTime = 0.0d;
}
if (dTime < Duration)
{
mediaPos.put_CurrentPosition(dTime);
}
}
}
}
/// <summary>
/// Queries the current video source for its capabilities regarding seeking and time info.
/// The graph should be fully constructed for accurate information
/// </summary>
protected void QuerySeekingCapabilities()
{
try
{
_mediaSeeking.SetTimeFormat(TimeFormat.MediaTime);
//get capabilities from the graph, and see what it supports that interests us
AMSeekingSeekingCapabilities caps;
int r = _mediaSeeking.GetCapabilities(out caps);
long lTest = 0;
double dblTest = 0;
if (r != 0)
{
_seek_canGetCurrentPos = false;
_seek_canSeek = false;
_seek_canGetDuration = false;
}
else //if we were able to read the capabilities, then determine if the capability works, both by checking the
// advertisement, and actually trying it out.
{
_seek_canSeek = ((caps & AMSeekingSeekingCapabilities.CanSeekAbsolute) == AMSeekingSeekingCapabilities.CanSeekAbsolute) &&
(_mediaSeeking.SetPositions(0, AMSeekingSeekingFlags.AbsolutePositioning,
null, AMSeekingSeekingFlags.NoPositioning) == 0);
_seek_canGetDuration = ((caps & AMSeekingSeekingCapabilities.CanGetDuration) == AMSeekingSeekingCapabilities.CanGetDuration) &&
(_mediaSeeking.GetDuration(out lTest) == 0);
_seek_canGetCurrentPos = ((caps & AMSeekingSeekingCapabilities.CanGetCurrentPos) == AMSeekingSeekingCapabilities.CanGetCurrentPos) &&
(_mediaSeeking.GetCurrentPosition(out lTest) == 0);
}
//check capabilities for the IMediaPosition interface
_pos_canSeek = (_mediaPosition.put_CurrentPosition(0) == 0);
_pos_canGetDuration = (_mediaPosition.get_Duration(out dblTest) == 0);
_pos_canGetCurrentPos = (_mediaPosition.get_CurrentPosition(out dblTest) == 0);
}
catch (Exception)
{
_seek_canSeek = false;
_pos_canSeek = false;
}
}
private void btnStop_Click(object sender, EventArgs e)
{
if (state == FilterState.Stopped)
{
return;
}
if (_mediaCtrl != null)
{
int hr = _mediaCtrl.Stop();
DsError.ThrowExceptionForHR(hr);
state = FilterState.Stopped;
}
// Seek back to the start.
if (_mediaPos != null)
{
_offsetseek = 0;
seekbar.Value = 0;
_mediaPos.put_CurrentPosition(0);
}
}
void TestPosition()
{
int hr;
double pllTime;
Thread.Sleep(1500);
hr = m_mediaPosition.get_CurrentPosition(out pllTime);
DsError.ThrowExceptionForHR(hr);
Debug.Assert(pllTime > 1.0, "get_CurrentPosition");
hr = m_mediaPosition.put_CurrentPosition(0);
DsError.ThrowExceptionForHR(hr);
hr = m_mediaPosition.get_CurrentPosition(out pllTime);
DsError.ThrowExceptionForHR(hr);
Debug.Assert(pllTime < 1.0, "get_CurrentPosition");
}
private void trackBar_mediapos_Scroll(object sender, EventArgs e)
{
m_mediapos.put_CurrentPosition((double)trackBar_mediapos.Value);
}
private void PlayMovieInWindow()
{
int hr = 0;
this.graphBuilder = (IGraphBuilder)new FilterGraph();
//Добавляем в граф нужный рендерер (Auto - graphBuilder сам выберет рендерер)
Settings.VRenderers renderer = Settings.VideoRenderer;
if (renderer == Settings.VRenderers.Overlay)
{
IBaseFilter add_vr = (IBaseFilter)new VideoRenderer();
hr = graphBuilder.AddFilter(add_vr, "Video Renderer");
DsError.ThrowExceptionForHR(hr);
}
else if (renderer == Settings.VRenderers.VMR7)
{
IBaseFilter add_vmr = (IBaseFilter)new VideoMixingRenderer();
hr = graphBuilder.AddFilter(add_vmr, "Video Renderer");
DsError.ThrowExceptionForHR(hr);
}
else if (renderer == Settings.VRenderers.VMR9)
{
IBaseFilter add_vmr9 = (IBaseFilter)new VideoMixingRenderer9();
hr = graphBuilder.AddFilter(add_vmr9, "Video Mixing Renderer 9");
DsError.ThrowExceptionForHR(hr);
}
else if (renderer == Settings.VRenderers.EVR)
{
//Создаём Win32-окно, т.к. использовать WPF-поверхность не получится
VHost = new VideoHwndHost();
VHost.RepaintRequired += new EventHandler(VHost_RepaintRequired);
VHostElement.Visibility = Visibility.Visible;
VHostElement.Child = VHost;
VHandle = VHost.Handle;
//Добавляем и настраиваем EVR
IBaseFilter add_evr = (IBaseFilter)new EnhancedVideoRenderer();
hr = graphBuilder.AddFilter(add_evr, "Enhanced Video Renderer");
DsError.ThrowExceptionForHR(hr);
object obj;
IMFGetService pGetService = null;
pGetService = (IMFGetService)add_evr;
hr = pGetService.GetService(MFServices.MR_VIDEO_RENDER_SERVICE, typeof(IMFVideoDisplayControl).GUID, out obj);
MFError.ThrowExceptionForHR(hr);
try
{
EVRControl = (IMFVideoDisplayControl)obj;
}
catch
{
Marshal.ReleaseComObject(obj);
throw;
}
//Указываем поверхность
hr = EVRControl.SetVideoWindow(VHandle);
MFError.ThrowExceptionForHR(hr);
//Сохраняем аспект
hr = EVRControl.SetAspectRatioMode(MFVideoAspectRatioMode.PreservePicture);
MFError.ThrowExceptionForHR(hr);
}
// Have the graph builder construct its the appropriate graph automatically
hr = this.graphBuilder.RenderFile(this.filepath, null);
DsError.ThrowExceptionForHR(hr);
if (EVRControl == null)
{
//Ищем рендерер и ВКЛЮЧАЕМ соблюдение аспекта (рендерер сам подгонит картинку под размер окна, с учетом аспекта)
IsRendererARFixed = false;
IBaseFilter filter = null;
graphBuilder.FindFilterByName("Video Renderer", out filter);
if (filter != null)
{
IVMRAspectRatioControl vmr = filter as IVMRAspectRatioControl;
if (vmr != null)
{
DsError.ThrowExceptionForHR(vmr.SetAspectRatioMode(VMRAspectRatioMode.LetterBox));
IsRendererARFixed = true;
}
}
else
{
graphBuilder.FindFilterByName("Video Mixing Renderer 9", out filter);
if (filter != null)
{
IVMRAspectRatioControl9 vmr9 = filter as IVMRAspectRatioControl9;
if (vmr9 != null)
{
DsError.ThrowExceptionForHR(vmr9.SetAspectRatioMode(VMRAspectRatioMode.LetterBox));
IsRendererARFixed = true;
}
}
}
}
else
IsRendererARFixed = true;
this.mediaControl = (IMediaControl)this.graphBuilder;
this.mediaEventEx = (IMediaEventEx)this.graphBuilder;
this.mediaSeeking = (IMediaSeeking)this.graphBuilder;
this.mediaPosition = (IMediaPosition)this.graphBuilder;
this.videoWindow = (EVRControl == null) ? this.graphBuilder as IVideoWindow : null;
this.basicVideo = (EVRControl == null) ? this.graphBuilder as IBasicVideo : null;
this.basicAudio = this.graphBuilder as IBasicAudio;
this.basicAudio.put_Volume(VolumeSet);
this.CheckIsAudioOnly();
if (!this.isAudioOnly)
{
if (videoWindow != null)
{
hr = this.videoWindow.put_Owner(this.source.Handle);
DsError.ThrowExceptionForHR(hr);
hr = this.videoWindow.put_MessageDrain(this.source.Handle);
DsError.ThrowExceptionForHR(hr);
hr = this.videoWindow.put_WindowStyle(DirectShowLib.WindowStyle.Child | DirectShowLib.WindowStyle.ClipSiblings | DirectShowLib.WindowStyle.ClipChildren);
DsError.ThrowExceptionForHR(hr);
}
this.MoveVideoWindow();
}
else
{
if (VHost != null)
{
VHost.Dispose();
VHost = null;
VHandle = IntPtr.Zero;
VHostElement.Child = null;
VHostElement.Visibility = Visibility.Collapsed;
}
}
hr = this.mediaEventEx.SetNotifyWindow(this.source.Handle, WMGraphNotify, IntPtr.Zero);
DsError.ThrowExceptionForHR(hr);
//Восстанавливаем старую позицию
if (mediaload == MediaLoad.Update && oldpos != TimeSpan.Zero)
{
if (NaturalDuration >= oldpos)
{
hr = mediaPosition.put_CurrentPosition(oldpos.TotalSeconds);
DsError.ThrowExceptionForHR(hr);
}
}
//Восстанавливаем старый PlayState
if (mediaload == MediaLoad.Update && (oldplaystate == PlayState.Paused || oldplaystate == PlayState.Stopped))
{
hr = this.mediaControl.Pause();
DsError.ThrowExceptionForHR(hr);
this.currentState = PlayState.Paused;
this.SetPlayIcon();
}
else
{
hr = this.mediaControl.Run();
DsError.ThrowExceptionForHR(hr);
this.currentState = PlayState.Running;
this.SetPauseIcon();
}
AddFiltersToMenu();
}
private void PlayMovieInWindow(string filename)
{
fps = 0;
int hr = 0;
this.graphBuilder = (IGraphBuilder)new FilterGraph();
//Добавляем в граф нужный рендерер (Auto - graphBuilder сам выберет рендерер)
Settings.VRenderers renderer = Settings.VideoRenderer;
if (renderer == Settings.VRenderers.Overlay)
{
IBaseFilter add_vr = (IBaseFilter)new VideoRenderer();
hr = graphBuilder.AddFilter(add_vr, "Video Renderer");
DsError.ThrowExceptionForHR(hr);
}
else if (renderer == Settings.VRenderers.VMR7)
{
IBaseFilter add_vmr = (IBaseFilter)new VideoMixingRenderer();
hr = graphBuilder.AddFilter(add_vmr, "Video Renderer");
DsError.ThrowExceptionForHR(hr);
}
else if (renderer == Settings.VRenderers.VMR9)
{
IBaseFilter add_vmr9 = (IBaseFilter)new VideoMixingRenderer9();
hr = graphBuilder.AddFilter(add_vmr9, "Video Mixing Renderer 9");
DsError.ThrowExceptionForHR(hr);
}
else if (renderer == Settings.VRenderers.EVR)
{
//Создаём Win32-окно, т.к. использовать WPF-поверхность не получится
VHost = new VideoHwndHost();
VHost.RepaintRequired += new EventHandler(VHost_RepaintRequired);
VHostElement.Visibility = Visibility.Visible;
VHostElement.Child = VHost;
VHandle = VHost.Handle;
//Добавляем и настраиваем EVR
IBaseFilter add_evr = (IBaseFilter)new EnhancedVideoRenderer();
hr = graphBuilder.AddFilter(add_evr, "Enhanced Video Renderer");
DsError.ThrowExceptionForHR(hr);
object obj;
IMFGetService pGetService = null;
pGetService = (IMFGetService)add_evr;
hr = pGetService.GetService(MFServices.MR_VIDEO_RENDER_SERVICE, typeof(IMFVideoDisplayControl).GUID, out obj);
MFError.ThrowExceptionForHR(hr);
try
{
EVRControl = (IMFVideoDisplayControl)obj;
}
catch
{
Marshal.ReleaseComObject(obj);
throw;
}
//Указываем поверхность
hr = EVRControl.SetVideoWindow(VHandle);
MFError.ThrowExceptionForHR(hr);
//Отключаем сохранение аспекта
hr = EVRControl.SetAspectRatioMode(MFVideoAspectRatioMode.None);
MFError.ThrowExceptionForHR(hr);
}
// Have the graph builder construct its the appropriate graph automatically
hr = this.graphBuilder.RenderFile(filename, null);
DsError.ThrowExceptionForHR(hr);
if (EVRControl == null)
{
//Ищем рендерер и отключаем соблюдение аспекта (аспект будет определяться размерами видео-окна)
IBaseFilter filter = null;
graphBuilder.FindFilterByName("Video Renderer", out filter);
if (filter != null)
{
IVMRAspectRatioControl vmr = filter as IVMRAspectRatioControl;
if (vmr != null) DsError.ThrowExceptionForHR(vmr.SetAspectRatioMode(VMRAspectRatioMode.None));
}
else
{
graphBuilder.FindFilterByName("Video Mixing Renderer 9", out filter);
if (filter != null)
{
IVMRAspectRatioControl9 vmr9 = filter as IVMRAspectRatioControl9;
if (vmr9 != null) DsError.ThrowExceptionForHR(vmr9.SetAspectRatioMode(VMRAspectRatioMode.None));
}
}
}
// QueryInterface for DirectShow interfaces
this.mediaControl = (IMediaControl)this.graphBuilder;
this.mediaEventEx = (IMediaEventEx)this.graphBuilder;
this.mediaSeeking = (IMediaSeeking)this.graphBuilder;
this.mediaPosition = (IMediaPosition)this.graphBuilder;
// Query for video interfaces, which may not be relevant for audio files
this.videoWindow = (EVRControl == null) ? this.graphBuilder as IVideoWindow : null;
this.basicVideo = (EVRControl == null) ? this.graphBuilder as IBasicVideo : null;
// Query for audio interfaces, which may not be relevant for video-only files
this.basicAudio = this.graphBuilder as IBasicAudio;
basicAudio.put_Volume(VolumeSet); //Ввод в ДиректШоу значения VolumeSet для установки громкости
// Is this an audio-only file (no video component)?
CheckIsAudioOnly();
if (!this.IsAudioOnly)
{
if (videoWindow != null)
{
// Setup the video window
hr = this.videoWindow.put_Owner(this.source.Handle);
DsError.ThrowExceptionForHR(hr);
hr = this.videoWindow.put_MessageDrain(this.source.Handle);
DsError.ThrowExceptionForHR(hr);
hr = this.videoWindow.put_WindowStyle(DirectShowLib.WindowStyle.Child | DirectShowLib.WindowStyle.ClipSiblings
| DirectShowLib.WindowStyle.ClipChildren);
DsError.ThrowExceptionForHR(hr);
//Определяем fps
double AvgTimePerFrame;
hr = basicVideo.get_AvgTimePerFrame(out AvgTimePerFrame);
DsError.ThrowExceptionForHR(hr);
fps = (1.0 / AvgTimePerFrame);
}
else if (EVRControl != null)
{
//Определяем fps
DetermineEVRFPS();
}
//Ловим ошибку Ависинта
IsAviSynthError = false;
if (NaturalDuration.TotalMilliseconds == 10000.0)
{
//Признаки ошибки: duration=10000.0 и fps=24 (округлённо)
if ((int)fps == 24 || fps == 0) IsAviSynthError = true;
}
MoveVideoWindow();
}
else
{
if (VHost != null)
{
VHost.Dispose();
VHost = null;
VHandle = IntPtr.Zero;
VHostElement.Child = null;
VHostElement.Visibility = Visibility.Collapsed;
VHostElement.Width = VHostElement.Height = 0;
VHostElement.Margin = new Thickness(0);
}
//Ловим ошибку Ависинта 2 (когда нет видео окна)
IsAviSynthError = (NaturalDuration.TotalMilliseconds == 10000.0);
if (m.isvideo)
{
//Видео должно было быть..
PreviewError("NO VIDEO", Brushes.Gainsboro);
}
}
//Если выше не удалось определить fps - берём значение из массива
if (fps == 0) fps = Calculate.ConvertStringToDouble(m.outframerate);
// Have the graph signal event via window callbacks for performance
hr = this.mediaEventEx.SetNotifyWindow(this.source.Handle, WMGraphNotify, IntPtr.Zero);
DsError.ThrowExceptionForHR(hr);
if (mediaload == MediaLoad.update) //Перенесено из HandleGraphEvent, теперь позиция устанавливается до начала воспроизведения, т.е. за один заход, а не за два
{
if (NaturalDuration >= oldpos) //Позиционируем только если нужная позиция укладывается в допустимый диапазон
mediaPosition.put_CurrentPosition(oldpos.TotalSeconds);
//else
// mediaPosition.put_CurrentPosition(NaturalDuration.TotalSeconds); //Ограничиваем позицию длиной клипа
}
// Run the graph to play the media file
if (currentState == PlayState.Running)
{
//Продолжение воспроизведения, если статус до обновления был Running
DsError.ThrowExceptionForHR(this.mediaControl.Run());
SetPauseIcon();
}
else
{
//Запуск с паузы, если была пауза или это новое открытие файла
DsError.ThrowExceptionForHR(this.mediaControl.Pause());
this.currentState = PlayState.Paused;
SetPlayIcon();
}
}
