public CAviDS(string filename, double playSpeed)
{
builder = new FilterGraph() as IGraphBuilder;
grabber = new SampleGrabber() as ISampleGrabber;
mediaType = new AMMediaType();
mediaType.majorType = MediaType.Video;
mediaType.subType = MediaSubType.RGB32;
mediaType.formatType = FormatType.VideoInfo;
DsError.ThrowExceptionForHR(grabber.SetMediaType(mediaType));
DsError.ThrowExceptionForHR(builder.AddFilter(grabber as IBaseFilter, "Sample Grabber(DTXMania)"));
DsError.ThrowExceptionForHR(builder.RenderFile(filename, null));
CDirectShow.ConnectNullRendererFromSampleGrabber(builder, grabber as IBaseFilter);
if (builder is IVideoWindow videoWindow)
{
videoWindow.put_AutoShow(OABool.False);
}
DsError.ThrowExceptionForHR(grabber.GetConnectedMediaType(mediaType));
videoInfo = (VideoInfoHeader)Marshal.PtrToStructure(mediaType.formatPtr, typeof(VideoInfoHeader));
nWidth = videoInfo.BmiHeader.Width;
nHeight = videoInfo.BmiHeader.Height;
seeker = builder as IMediaSeeking;
DsError.ThrowExceptionForHR(seeker.GetDuration(out nMediaLength));
DsError.ThrowExceptionForHR(seeker.SetRate(playSpeed / 20.0));
control = builder as IMediaControl;
filter = builder as IMediaFilter;
grabber.SetBufferSamples(BufferThem: true);
Run();
Pause();
bPlaying = false;
bPause = false;
}
public CAviDS(string filename, double playSpeed)
{
int hr = 0x0;
builder = (IGraphBuilder) new FilterGraph();
#region [Sample Grabber]
{
grabber = new SampleGrabber() as ISampleGrabber;
mediaType = new AMMediaType();
mediaType.majorType = MediaType.Video;
mediaType.subType = MediaSubType.RGB32;
mediaType.formatType = FormatType.VideoInfo;
hr = grabber.SetMediaType(mediaType);
DsError.ThrowExceptionForHR(hr);
hr = builder.AddFilter((IBaseFilter)grabber, "Sample Grabber");
DsError.ThrowExceptionForHR(hr);
}
#endregion
hr = builder.RenderFile(filename, null);
DsError.ThrowExceptionForHR(hr);
// Null レンダラに接続しないとウィンドウが表示される。
// また、レンダリングを行わないため処理速度を向上できる。
CDirectShow.ConnectNullRendererFromSampleGrabber(builder, grabber as IBaseFilter);
CDirectShow.tグラフを解析しデバッグ出力する(builder);
IVideoWindow videoWindow = builder as IVideoWindow;
if (videoWindow != null)
{
videoWindow.put_AutoShow(OABool.False);
}
#region [Video Info]
{
hr = grabber.GetConnectedMediaType(mediaType);
DsError.ThrowExceptionForHR(hr);
videoInfo = (VideoInfoHeader)Marshal.PtrToStructure(mediaType.formatPtr, typeof(VideoInfoHeader));
nWidth = videoInfo.BmiHeader.Width;
nHeight = videoInfo.BmiHeader.Height;
}
#endregion
#region [ Seeker ]
{
seeker = builder as IMediaSeeking;
hr = seeker.GetDuration(out nMediaLength);
DsError.ThrowExceptionForHR(hr);
hr = seeker.SetRate(playSpeed / 20);
DsError.ThrowExceptionForHR(hr);
}
#endregion
#region [Control]
{
control = builder as IMediaControl;
}
#endregion
#region [Filter]
{
filter = builder as IMediaFilter;
}
#endregion
grabber.SetBufferSamples(true);
this.Run();
this.Pause();
bPlaying = false;
bPause = false; // 外見えには演奏停止している。PAUSE中として外に見せないこと。
}
