--- /dev/null
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Runtime.InteropServices;
+using DirectShowLib;
+using DirectShowLib.DES;
+using SharpDX;
+
+namespace FDK
+{
+ public class CAviDS : IDisposable
+ {
+ const int timeOutMs = 1000; // グラフ state の遷移完了を待つタイムアウト期間
+
+ public uint nフレーム高さ
+ {
+ get
+ {
+ return (uint)nHeight;
+ }
+ }
+
+ public uint nフレーム幅
+ {
+ get
+ {
+ return (uint)nWidth;
+ }
+ }
+ public bool b再生中
+ {
+ get
+ {
+ return bPlaying;
+ }
+ }
+ public bool b一時停止中
+ {
+ get
+ {
+ return bPause;
+ }
+ }
+
+ int nWidth;
+ int nHeight;
+ long nMediaLength; // [ms]
+ bool bPlaying;
+ bool bPause;
+
+ public int GetDuration()
+ {
+ return (int)(nMediaLength / 10000);
+ }
+
+ IGraphBuilder builder;
+ VideoInfoHeader videoInfo;
+ ISampleGrabber grabber;
+ IMediaControl control;
+ IMediaSeeking seeker;
+ IMediaFilter filter;
+ FilterState state;
+ AMMediaType mediaType;
+ IntPtr samplePtr = IntPtr.Zero;
+
+ 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。
+ }
+
+ public void Seek(int timeInMs)
+ {
+ int hr = seeker.SetPositions(new DsLong(timeInMs * 10000), AMSeekingSeekingFlags.AbsolutePositioning, null, AMSeekingSeekingFlags.NoPositioning);
+ DsError.ThrowExceptionForHR(hr);
+ hr = control.GetState(timeOutMs, out state); // state is Running
+ DsError.ThrowExceptionForHR(hr);
+ }
+
+ public void Run()
+ {
+ int hr = control.Run();
+ DsError.ThrowExceptionForHR(hr);
+ hr = control.GetState(timeOutMs, out state);
+ DsError.ThrowExceptionForHR(hr);
+ bPlaying = true;
+ bPause = false;
+ }
+
+ public void Stop()
+ {
+ int hr = control.Stop();
+ DsError.ThrowExceptionForHR(hr);
+ hr = control.GetState(timeOutMs, out state);
+ DsError.ThrowExceptionForHR(hr);
+ bPlaying = false;
+ bPause = false;
+ }
+
+ public void Pause()
+ {
+ int hr = control.Pause();
+ DsError.ThrowExceptionForHR(hr);
+ hr = control.GetState(timeOutMs, out state);
+ DsError.ThrowExceptionForHR(hr);
+ bPause = true;
+ }
+
+ public void ToggleRun()
+ {
+ int hr = control.GetState(timeOutMs, out state);
+ DsError.ThrowExceptionForHR(hr);
+ if( state == FilterState.Paused )
+ {
+ Run();
+ }
+ else if( state == FilterState.Running )
+ {
+ Pause();
+ }
+ }
+
+ public unsafe void tGetBitmap(SharpDX.Direct3D9.Device device, CTexture ctex, int timeMs)
+ {
+ int bufferSize = 0;
+ int hr = 0x0;
+
+ hr = grabber.GetCurrentBuffer(ref bufferSize, IntPtr.Zero);
+ DsError.ThrowExceptionForHR(hr);
+
+ if ( samplePtr == IntPtr.Zero )
+ {
+ samplePtr = Marshal.AllocHGlobal(bufferSize);
+ }
+
+ DataRectangle rectangle3 = ctex.texture.LockRectangle(0, SharpDX.Direct3D9.LockFlags.None);
+ hr = grabber.GetCurrentBuffer(ref bufferSize, rectangle3.DataPointer);
+ DsError.ThrowExceptionForHR(hr);
+ ctex.texture.UnlockRectangle(0);
+ }
+
+ #region [ Dispose-Finalize パターン実装 ]
+ public void Dispose()
+ {
+ if (!this.bDisposed)
+ {
+ if (null != builder)
+ {
+ Marshal.ReleaseComObject(builder);
+ builder = null;
+ }
+ if( null != grabber )
+ {
+ Marshal.ReleaseComObject(grabber);
+ grabber = null;
+ }
+ if (null != mediaType)
+ {
+ DsUtils.FreeAMMediaType(mediaType);
+ mediaType = null;
+ }
+ if (samplePtr != IntPtr.Zero)
+ {
+ Marshal.FreeHGlobal(samplePtr);
+ }
+
+ GC.SuppressFinalize(this);
+ this.bDisposed = true;
+ }
+ }
+
+ ~CAviDS()
+ {
+ this.Dispose();
+ }
+ #endregion
+
+ private bool bDisposed = false;
+ }
+}
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