private void CloseInterfaces()
{
int hr = 0;
try
{
lock (this)
{
// Relinquish ownership (IMPORTANT!) after hiding video window
hr = this.videoWindow.put_Visible(OABool.False);
DsError.ThrowExceptionForHR(hr);
hr = this.videoWindow.put_Owner(IntPtr.Zero);
DsError.ThrowExceptionForHR(hr);
if (this.mediaEventEx != null)
{
hr = this.mediaEventEx.SetNotifyWindow(IntPtr.Zero, 0, IntPtr.Zero);
DsError.ThrowExceptionForHR(hr);
}
// Release and zero DirectShow interfaces
if (this.mediaEventEx != null)
{
this.mediaEventEx = null;
}
if (this.mediaSeeking != null)
{
this.mediaSeeking = null;
}
if (this.mediaPosition != null)
{
this.mediaPosition = null;
}
if (this.mediaControl != null)
{
this.mediaControl = null;
}
if (this.basicAudio != null)
{
this.basicAudio = null;
}
if (this.basicVideo != null)
{
this.basicVideo = null;
}
if (this.videoWindow != null)
{
this.videoWindow = null;
}
if (this.frameStep != null)
{
this.frameStep = null;
}
if (this.graphBuilder != null)
{
Marshal.ReleaseComObject(this.graphBuilder);
}
this.graphBuilder = null;
GC.Collect();
}
}
catch
{
//what to do?
}
}
internal static void _DisplayPropertyPage(object filter_or_pin, IntPtr hwndOwner)
{
if (filter_or_pin == null)
{
return;
}
//Get the ISpecifyPropertyPages for the filter
ISpecifyPropertyPages pProp = filter_or_pin as ISpecifyPropertyPages;
int hr = 0;
if (pProp == null)
{
//If the filter doesn't implement ISpecifyPropertyPages, try displaying IAMVfwCompressDialogs instead!
IAMVfwCompressDialogs compressDialog = filter_or_pin as IAMVfwCompressDialogs;
if (compressDialog != null)
{
hr = compressDialog.ShowDialog(VfwCompressDialogs.Config, IntPtr.Zero);
DsError.ThrowExceptionForHR(hr);
}
return;
}
string caption = string.Empty;
if (filter_or_pin is IBaseFilter)
{
//Get the name of the filter from the FilterInfo struct
IBaseFilter as_filter = filter_or_pin as IBaseFilter;
FilterInfo filterInfo;
hr = as_filter.QueryFilterInfo(out filterInfo);
DsError.ThrowExceptionForHR(hr);
caption = filterInfo.achName;
if (filterInfo.pGraph != null)
{
Marshal.ReleaseComObject(filterInfo.pGraph);
}
}
else
if (filter_or_pin is IPin)
{
//Get the name of the filter from the FilterInfo struct
IPin as_pin = filter_or_pin as IPin;
PinInfo pinInfo;
hr = as_pin.QueryPinInfo(out pinInfo);
DsError.ThrowExceptionForHR(hr);
caption = pinInfo.name;
}
// Get the propertypages from the property bag
DsCAUUID caGUID;
hr = pProp.GetPages(out caGUID);
DsError.ThrowExceptionForHR(hr);
// Create and display the OlePropertyFrame
object oDevice = (object)filter_or_pin;
hr = NativeMethodes.OleCreatePropertyFrame(hwndOwner, 0, 0, caption, 1, ref oDevice, caGUID.cElems, caGUID.pElems, 0, 0, IntPtr.Zero);
DsError.ThrowExceptionForHR(hr);
// Release COM objects
Marshal.FreeCoTaskMem(caGUID.pElems);
Marshal.ReleaseComObject(pProp);
}
/// <summary>
/// Gets available resolutions (which are appropriate for us) for capture pin (PinCategory.Capture).
/// </summary>
/// <param name="captureFilter">Capture pin (PinCategory.Capture) for asking for resolution list.</param>
private static ResolutionList GetResolutionsAvailable(IPin pinOutput)
{
int hr = 0;
ResolutionList ResolutionsAvailable = new ResolutionList();
//ResolutionsAvailable.Clear();
// Media type (shoudl be cleaned)
AMMediaType media_type = null;
//NOTE: pSCC is not used. All we need is media_type
IntPtr pSCC = IntPtr.Zero;
try
{
IAMStreamConfig videoStreamConfig = pinOutput as IAMStreamConfig;
// -------------------------------------------------------------------------
// We want the interface to expose all media types it supports and not only the last one set
hr = videoStreamConfig.SetFormat(null);
DsError.ThrowExceptionForHR(hr);
int piCount = 0;
int piSize = 0;
hr = videoStreamConfig.GetNumberOfCapabilities(out piCount, out piSize);
DsError.ThrowExceptionForHR(hr);
for (int i = 0; i < piCount; i++)
{
// ---------------------------------------------------
pSCC = Marshal.AllocCoTaskMem(piSize);
videoStreamConfig.GetStreamCaps(i, out media_type, pSCC);
// NOTE: we could use VideoStreamConfigCaps.InputSize or something like that to get resolution, but it's deprecated
//VideoStreamConfigCaps videoStreamConfigCaps = (VideoStreamConfigCaps)Marshal.PtrToStructure(pSCC, typeof(VideoStreamConfigCaps));
// ---------------------------------------------------
if (IsBitCountAppropriate(GetBitCountForMediaType(media_type)))
{
ResolutionsAvailable.AddIfNew(GetResolutionForMediaType(media_type));
}
FreeSCCMemory(ref pSCC);
FreeMediaType(ref media_type);
}
}
catch
{
throw;
}
finally
{
// clean up
FreeSCCMemory(ref pSCC);
FreeMediaType(ref media_type);
}
return(ResolutionsAvailable);
}
/// <summary>
/// Gets an image snapshot from the media file that was opened
/// </summary>
/// <param name="position">The media time position for the requested thumbnail</param>
/// <returns>Returns a BitmapSource of the video position.</returns>
public unsafe BitmapSource GetImage(TimeSpan position)
{
VerifyAccess();
const int BITS_PER_PIXEL = 3;
if (string.IsNullOrEmpty(m_filename))
{
throw new Exception("A media file must be successfully loaded first.");
}
if (!HasVideo)
{
throw new Exception("The media does not have a video stream");
}
double secondsPos = position.TotalSeconds;
/* Our pointer to the bitmap's pixel buffer */
IntPtr pBuffer = IntPtr.Zero;
/* The WPF bitmap source we return */
BitmapSource bmpSource = null;
try
{
/* The size of our buffer */
int bufferSize;
/* Queries the size of the bitmap buffer first */
int hr = m_mediaDet.GetBitmapBits(secondsPos,
out bufferSize,
IntPtr.Zero,
(int)VideoResolution.Width,
(int)VideoResolution.Height);
if (hr == 0)
{
/* Allocate some unmanaged memory, big enough for our bitmap bytes */
pBuffer = Marshal.AllocCoTaskMem(bufferSize);
/* Get the pixel buffer for the thumbnail */
hr = m_mediaDet.GetBitmapBits(secondsPos,
out bufferSize,
pBuffer,
(int)VideoResolution.Width,
(int)VideoResolution.Height);
DsError.ThrowExceptionForHR(hr);
/* The bitmap header exists is the buffer. We 'cast' it out to read it */
var bitmapHeader = (BitmapInfoHeader)Marshal.PtrToStructure(pBuffer, typeof(BitmapInfoHeader));
/* We use a pointer so we can do some pointer
* arithmetic. This method should be compatible
* with 32/64bit processes */
var pBitmapData = (byte *)pBuffer.ToPointer();
pBitmapData += bitmapHeader.Size;
/* This will be the pointer to the bitmap pixels */
var bitmapData = new IntPtr(pBitmapData);
/* We create a GDI bitmap, so we can flip it before we
* load it into a WPF BitmapSource */
if (m_bitmap == null)
{
m_bitmap = new Bitmap(bitmapHeader.Width,
bitmapHeader.Height,
PixelFormat.Format24bppRgb);
}
/* The GDI bitmap's pixels are locked so we can grab a pointer to the pixel buffer */
BitmapData bmpData = m_bitmap.LockBits(new Rectangle(0, 0, bitmapHeader.Width, bitmapHeader.Height),
ImageLockMode.WriteOnly,
PixelFormat.Format24bppRgb);
/* The we copy our pixel buffer to the GDI bitmap's pixel buffer */
CopyMemory(bmpData.Scan0, bitmapData, (int)VideoResolution.Width * (int)VideoResolution.Height * BITS_PER_PIXEL);
m_bitmap.UnlockBits(bmpData);
/* The bitmap is bottom up, so it needs to be flipped */
m_bitmap.RotateFlip(RotateFlipType.Rotate180FlipX);
/* Lock the GDI pixel buffer so we can load them into a WPF BitmapSource */
bmpData = m_bitmap.LockBits(new Rectangle(0, 0, bitmapHeader.Width, bitmapHeader.Height),
ImageLockMode.ReadOnly,
PixelFormat.Format24bppRgb);
bmpSource = BitmapSource.Create((int)VideoResolution.Width,
(int)VideoResolution.Height,
96,
96,
PixelFormats.Bgr24,
null,
bmpData.Scan0,
bmpData.Stride * (int)VideoResolution.Height,
bmpData.Stride);
m_bitmap.UnlockBits(bmpData);
}
}
catch (Exception ex)
{
Debug.WriteLine("GetImage error: " + ex.Message);
}
finally
{
if (pBuffer != IntPtr.Zero)
{
Marshal.FreeCoTaskMem(pBuffer);
}
}
return(bmpSource);
}
private void CMB_videosources_SelectedIndexChanged(object sender, EventArgs e)
{
if (MainV2.MONO)
{
return;
}
int hr;
int count;
int size;
object o;
IBaseFilter capFilter = null;
ICaptureGraphBuilder2 capGraph = null;
AMMediaType media = null;
VideoInfoHeader v;
VideoStreamConfigCaps c;
List <GCSBitmapInfo> modes = new List <GCSBitmapInfo>();
// Get the ICaptureGraphBuilder2
capGraph = (ICaptureGraphBuilder2) new CaptureGraphBuilder2();
IFilterGraph2 m_FilterGraph = (IFilterGraph2) new FilterGraph();
DsDevice[] capDevices;
capDevices = DsDevice.GetDevicesOfCat(FilterCategory.VideoInputDevice);
// Add the video device
hr = m_FilterGraph.AddSourceFilterForMoniker(capDevices[CMB_videosources.SelectedIndex].Mon, null, "Video input", out capFilter);
try
{
DsError.ThrowExceptionForHR(hr);
}
catch (Exception ex)
{
CustomMessageBox.Show("Can not add video source\n" + ex.ToString());
return;
}
// Find the stream config interface
hr = capGraph.FindInterface(PinCategory.Capture, MediaType.Video, capFilter, typeof(IAMStreamConfig).GUID, out o);
DsError.ThrowExceptionForHR(hr);
IAMStreamConfig videoStreamConfig = o as IAMStreamConfig;
if (videoStreamConfig == null)
{
throw new Exception("Failed to get IAMStreamConfig");
}
hr = videoStreamConfig.GetNumberOfCapabilities(out count, out size);
DsError.ThrowExceptionForHR(hr);
IntPtr TaskMemPointer = Marshal.AllocCoTaskMem(size);
for (int i = 0; i < count; i++)
{
IntPtr ptr = IntPtr.Zero;
hr = videoStreamConfig.GetStreamCaps(i, out media, TaskMemPointer);
v = (VideoInfoHeader)Marshal.PtrToStructure(media.formatPtr, typeof(VideoInfoHeader));
c = (VideoStreamConfigCaps)Marshal.PtrToStructure(TaskMemPointer, typeof(VideoStreamConfigCaps));
modes.Add(new GCSBitmapInfo(v.BmiHeader.Width, v.BmiHeader.Height, c.MaxFrameInterval, c.VideoStandard.ToString(), media));
}
Marshal.FreeCoTaskMem(TaskMemPointer);
DsUtils.FreeAMMediaType(media);
CMB_videoresolutions.DataSource = modes;
if (MainV2.getConfig("video_options") != "" && CMB_videosources.Text != "")
{
try
{
CMB_videoresolutions.SelectedIndex = int.Parse(MainV2.getConfig("video_options"));
}
catch { } // ignore bad entries
}
}
//void eventListener_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
//{
// this.CloseAudioFile();
//}
/// <summary>
/// Called on a new thread to process events from the graph. The thread
/// exits when the graph finishes. Cancelling is done here.
/// </summary>
private void EventWait()
{
// Returned when GetEvent is called but there are no events
const int E_ABORT = unchecked ((int)0x80004004);
int hr;
IntPtr p1, p2;
EventCode ec;
EventCode exitCode = 0;
IMediaEvent pEvent = (IMediaEvent)this.filterGraph;
do
{
// Read the event
for (
hr = pEvent.GetEvent(out ec, out p1, out p2, 100);
hr >= 0 && this.currentState == PlayState.Running;
hr = pEvent.GetEvent(out ec, out p1, out p2, 100)
)
{
switch (ec)
{
// If all files finished playing
case EventCode.Complete:
case EventCode.ErrorAbort:
case EventCode.UserAbort:
ChangeState(PlayState.Exiting);
exitCode = ec;
break;
}
// Release any resources the message allocated
hr = pEvent.FreeEventParams(ec, p1, p2);
DsError.ThrowExceptionForHR(hr);
}
// If the error that exited the loop wasn't due to running out of events
if (hr != E_ABORT)
{
DsError.ThrowExceptionForHR(hr);
}
} while (this.currentState == PlayState.Running);
// If the user cancelled
if (this.currentState == PlayState.Cancelling)
{
// Stop the graph, send an appropriate exit code
hr = this.mediaControl.Stop();
exitCode = EventCode.UserAbort;
}
// Send an event saying we are complete
if (exitCode == EventCode.Complete && Completed != null)
{
CompletedArgs ca = new CompletedArgs(exitCode);
Completed(this, ca);
}
//threadCompleted = true;
} // Exit the thread
public void Pause()
{
DsError.ThrowExceptionForHR(control.Pause());
DsError.ThrowExceptionForHR(control.GetState(1000, out state));
bPause = true;
}
/// <summary>
/// Builds the DVD DirectShow graph
/// </summary>
private void BuildGraph()
{
try
{
FreeResources();
int hr;
/* Create our new graph */
m_graph = (IGraphBuilder) new FilterGraphNoThread();
#if DEBUG
m_rot = new DsROTEntry(m_graph);
#endif
/* We are going to use the VMR9 for now. The EVR does not
* seem to work with the interactive menus yet. It should
* play Dvds fine otherwise */
var rendererType = VideoRendererType.VideoMixingRenderer9;
/* Creates and initializes a new renderer ready to render to WPF */
m_renderer = CreateVideoRenderer(rendererType, m_graph, 2);
/* Do some VMR9 specific stuff */
if (rendererType == VideoRendererType.VideoMixingRenderer9)
{
var mixer = m_renderer as IVMRMixerControl9;
if (mixer != null)
{
VMR9MixerPrefs dwPrefs;
mixer.GetMixingPrefs(out dwPrefs);
dwPrefs &= ~VMR9MixerPrefs.RenderTargetMask;
dwPrefs |= VMR9MixerPrefs.RenderTargetYUV;
/* Enable this line to prefer YUV */
//hr = mixer.SetMixingPrefs(dwPrefs);
}
}
/* Create a new DVD Navigator. */
var dvdNav = (IBaseFilter) new DVDNavigator();
/* The DVDControl2 interface lets us control DVD features */
m_dvdControl = dvdNav as IDvdControl2;
if (m_dvdControl == null)
{
throw new Exception("Could not QueryInterface the IDvdControl2 interface");
}
/* QueryInterface the DVDInfo2 */
m_dvdInfo = dvdNav as IDvdInfo2;
/* If a Dvd directory has been set then use it, if not, let DShow find the Dvd */
if (!string.IsNullOrEmpty(DvdDirectory))
{
hr = m_dvdControl.SetDVDDirectory(DvdDirectory);
DsError.ThrowExceptionForHR(hr);
}
/* This gives us the DVD time in Hours-Minutes-Seconds-Frame time format, and other options */
hr = m_dvdControl.SetOption(DvdOptionFlag.HMSFTimeCodeEvents, true);
DsError.ThrowExceptionForHR(hr);
/* If the graph stops, resume at the same point */
m_dvdControl.SetOption(DvdOptionFlag.ResetOnStop, false);
hr = m_graph.AddFilter(dvdNav, "DVD Navigator");
DsError.ThrowExceptionForHR(hr);
IPin dvdVideoPin = null;
IPin dvdAudioPin = null;
IPin dvdSubPicturePin = null;
IPin dvdNavPin;
int i = 0;
/* Loop all the output pins on the DVD Navigator, trying to find which pins are which.
* We could more easily find the pins by name, but this is more fun...and more flexible
* if we ever want to use a 3rd party DVD navigator that used different pin names */
while ((dvdNavPin = DsFindPin.ByDirection(dvdNav, PinDirection.Output, i)) != null)
{
var mediaTypes = new AMMediaType[1];
IntPtr pFetched = IntPtr.Zero;
IEnumMediaTypes mediaTypeEnum;
dvdNavPin.EnumMediaTypes(out mediaTypeEnum);
/* Loop over each of the mediaTypes of each pin */
while (mediaTypeEnum.Next(1, mediaTypes, pFetched) == 0)
{
AMMediaType mediaType = mediaTypes[0];
/* This will be the video stream pin */
if (mediaType.subType == MediaSubType.Mpeg2Video)
{
/* Keep the ref and we'll work with it later */
dvdVideoPin = dvdNavPin;
break;
}
/* This will be the audio stream pin */
if (mediaType.subType == MediaSubType.DolbyAC3 ||
mediaType.subType == MediaSubType.Mpeg2Audio)
{
/* Keep the ref and we'll work with it later */
dvdAudioPin = dvdNavPin;
break;
}
/* This is the Dvd sub picture pin. This generally
* shows overlays for Dvd menus and sometimes closed captions */
if (mediaType.subType == DVD_SUBPICTURE_TYPE)
{
/* Keep the ref and we'll work with it later */
dvdSubPicturePin = dvdNavPin;
break;
}
}
mediaTypeEnum.Reset();
Marshal.ReleaseComObject(mediaTypeEnum);
i++;
}
/* This is the windowed renderer. This is *NEEDED* in order
* for interactive menus to work with the other VMR9 in renderless mode */
var dummyRenderer = (IBaseFilter) new VideoMixingRenderer9();
var dummyRendererConfig = (IVMRFilterConfig9)dummyRenderer;
/* In order for this interactive menu trick to work, the VMR9
* must be set to Windowed. We will make sure the window is hidden later on */
hr = dummyRendererConfig.SetRenderingMode(VMR9Mode.Windowed);
DsError.ThrowExceptionForHR(hr);
hr = dummyRendererConfig.SetNumberOfStreams(1);
DsError.ThrowExceptionForHR(hr);
hr = m_graph.AddFilter(dummyRenderer, "Dummy Windowed");
DsError.ThrowExceptionForHR(hr);
if (dvdAudioPin != null)
{
/* This should render out to the default audio device. We
* could modify this code here to go out any audio
* device, such as SPDIF or another sound card */
hr = m_graph.Render(dvdAudioPin);
DsError.ThrowExceptionForHR(hr);
}
/* Get the first input pin on our dummy renderer */
m_dummyRendererPin = DsFindPin.ByConnectionStatus(dummyRenderer, /* Filter to search */
PinConnectedStatus.Unconnected,
0);
/* Get an available pin on our real renderer */
IPin rendererPin = DsFindPin.ByConnectionStatus(m_renderer, /* Filter to search */
PinConnectedStatus.Unconnected,
0); /* Pin index */
/* Connect the pin to the renderer */
hr = m_graph.Connect(dvdVideoPin, rendererPin);
DsError.ThrowExceptionForHR(hr);
/* Get the next available pin on our real renderer */
rendererPin = DsFindPin.ByConnectionStatus(m_renderer, /* Filter to search */
PinConnectedStatus.Unconnected,
0); /* Pin index */
/* Render the sub picture, which will connect
* the DVD navigator to the codec, not the renderer */
hr = m_graph.Render(dvdSubPicturePin);
DsError.ThrowExceptionForHR(hr);
/* These are the subtypes most likely to be our dvd subpicture */
var preferedSubpictureTypes = new[] { MediaSubType.ARGB4444,
MediaSubType.AI44,
MediaSubType.AYUV,
MediaSubType.ARGB32 };
IPin dvdSubPicturePinOut = null;
/* Find what should be the subpicture pin out */
foreach (var guidType in preferedSubpictureTypes)
{
dvdSubPicturePinOut = FindPinInGraphByMediaType(guidType, /* GUID of the media type being searched for */
PinDirection.Output,
m_graph); /* Our current graph */
if (dvdSubPicturePinOut != null)
{
break;
}
}
if (dvdSubPicturePinOut == null)
{
throw new Exception("Could not find the sub picture pin out");
}
/* Here we connec thte Dvd sub picture pin to the video renderer.
* This enables the overlays on Dvd menus and some closed
* captions to be rendered. */
hr = m_graph.Connect(dvdSubPicturePinOut, rendererPin);
DsError.ThrowExceptionForHR(hr);
/* Search for the Line21 out in the graph */
IPin line21Out = FindPinInGraphByMediaType(MediaType.AuxLine21Data,
PinDirection.Output,
m_graph);
if (line21Out == null)
{
throw new Exception("Could not find the Line21 pin out");
}
/* We connect our line21Out out in to the dummy renderer
* this is what ultimatly makes interactive DVDs work with
* VMR9 in renderless (for WPF) */
hr = m_graph.Connect(line21Out, m_dummyRendererPin);
DsError.ThrowExceptionForHR(hr);
/* This is the dummy renderers Win32 window. */
m_dummyRenderWindow = dummyRenderer as IVideoWindow;
if (m_dummyRenderWindow == null)
{
throw new Exception("Could not QueryInterface for IVideoWindow");
}
ConfigureDummyWindow();
/* Setup our base classes with this filter graph */
SetupFilterGraph(m_graph);
/* Sets the NaturalVideoWidth/Height */
SetNativePixelSizes(m_renderer);
}
catch (Exception ex)
{
FreeResources();
InvokeMediaFailed(new MediaFailedEventArgs(ex.Message, ex));
return;
}
InvokeMediaOpened();
}
private void RenderSource()
{
int hr;
IEnumPins enumPins;
IPin[] pins = new IPin[1];
hr = _netSrc.EnumPins(out enumPins);
DsError.ThrowExceptionForHR(hr);
try
{
while (enumPins.Next(pins.Length, pins, IntPtr.Zero) == 0)
{
try
{
PinInfo pinInfo;
IPin upstreamPin = pins[0];
hr = upstreamPin.QueryPinInfo(out pinInfo);
DsError.ThrowExceptionForHR(hr);
if (pinInfo.dir == PinDirection.Output)
{
IEnumMediaTypes enumMediaTypes;
hr = upstreamPin.EnumMediaTypes(out enumMediaTypes);
DsError.ThrowExceptionForHR(hr);
AMMediaType[] mediaTypes = new AMMediaType[1];
if (enumMediaTypes.Next(1, mediaTypes, IntPtr.Zero) == 0)
{
AMMediaType mediaType = mediaTypes[0];
if (mediaType.majorType == MediaType.Video)
{
if ((mediaType.subType == new Guid("34363268-0000-0010-8000-00AA00389B71")) ||
(mediaType.subType == new Guid("34363248-0000-0010-8000-00aa00389b71")) ||
(mediaType.subType == new Guid("3436324c-0000-0010-8000-00aa00389b71")) ||
(mediaType.subType == new Guid("31637661-5349-4d4f-4544-494154595045")) ||
(mediaType.subType == new Guid("8d2d71cb-243f-45e3-b2d8-5fd7967ec09b")))
{
_decoderFilter = AddFilterByName(_graphBuilder, FilterCategory.LegacyAmFilterCategory, "LEAD H264 Decoder (3.0)");
ConnectFilters(_graphBuilder, _netSrc, pinInfo.name, _infPinTee, "Input", true);
ConnectFilters(_graphBuilder, _infPinTee, "Output1", _decoderFilter, "XForm In", true);
ConnectFilters(_graphBuilder, _infPinTee, "Output2", _bridgeSink, "Input 1", true);
ConnectFilters(_graphBuilder, _decoderFilter, "XForm Out", _videoCallbackFilter, "Input", true);
ConnectFilters(_graphBuilder, _videoCallbackFilter, "Output", _videoRender, "VMR Input0", true);
}
else if (mediaType.subType == new Guid("4B324A4C-0000-0010-8000-00AA00389B71"))
{
_decoderFilter = AddFilterByName(_graphBuilder, FilterCategory.LegacyAmFilterCategory, "LEAD MJ2K Decoder (2.0)");
ConnectFilters(_graphBuilder, _netSrc, pinInfo.name, _decoderFilter, "Input", true);
ConnectFilters(_graphBuilder, _decoderFilter, "XForm Out", _videoRender, "VMR Input0", true);
}
else if (mediaType.subType == MediaSubType.MJPG)
{
_decoderFilter = AddFilterByName(_graphBuilder, FilterCategory.LegacyAmFilterCategory, "LEAD MCMP/MJPEG Decoder (2.0)");
ConnectFilters(_graphBuilder, _decoderFilter, "XForm Out", _videoRender, "VMR Input0", true);
}
else
{
throw new Exception("Can't Render--Unsupported codec in stream");
}
}
else
{
// throw new Exception("Can't Render--Unsupported type - audio? not supported");
}
}
}
}
finally
{
Marshal.ReleaseComObject(pins[0]);
}
}
}
finally
{
Marshal.ReleaseComObject(enumPins);
}
}
[HandleProcessCorruptedStateExceptions] // Some filters cause AccessViolations; NET 4 doesn't catch these without this flag see http://msdn.microsoft.com/en-us/magazine/dd419661.aspx#id0070035
protected void RunGraph(IGraphBuilder graphBuilder, IBaseFilter seekableFilter)
{
bool shouldTerminateGraphLoop = false;
// Get the media seeking interface to use for computing status and progress updates
IMediaSeeking mediaSeeking = (IMediaSeeking)currentOutputFilter;
if (!CanGetPositionAndDuration(mediaSeeking))
{
// Try to seek using the main graph
mediaSeeking = (IMediaSeeking)currentFilterGraph;
if (!CanGetPositionAndDuration(mediaSeeking))
{
mediaSeeking = null;
}
}
// Run the graph
int hr = 0;
IMediaControl mediaControl = (IMediaControl)graphBuilder;
IMediaEvent mediaEvent = (IMediaEvent)graphBuilder;
EventCode statusCode;
DateTime startingTime = DateTime.Now;
TerminationReason whyDidITerminate = TerminationReason.None;
try
{
hr = mediaControl.Pause();
hr = mediaControl.Run();
DsError.ThrowExceptionForHR(hr);
// Signal (if first time) that graph is running OK
SignalGraphStartedEvent(true);
bool anyClientsYet = false;
bool conversionComplete = false;
while (!shouldTerminateGraphLoop) // continue until we're done/cancelled
{
// Any commands? (e.g. seek / cancel)
ProcessAnyCommands(ref shouldTerminateGraphLoop, ref whyDidITerminate);
// Check graph conversion progress
if (conversionComplete)
{
// stall to avoid 100% loop
hr = mediaEvent.WaitForCompletion(250, out statusCode);
}
else
{
conversionComplete = CheckGraphConversion(ref mediaSeeking);
if (conversionComplete)
{
if (ConversionProgressChanged != null)
{
ConversionProgressChanged(new object(), new ProgressChangedEventArgs(100)); // final progress update stating 100% done
}
if (ConversionCompleted != null)
{
ConversionCompleted(new object(), new EventArgs());
}
}
}
// Check number of clients
int numClients = NumberOfConnectedClients();
if ((numClients > 0) && (!anyClientsYet))
{
anyClientsYet = true; // A client connected
}
else if ((numClients == 0))
{
if (anyClientsYet)
{
// There were clients, but All clients have disconnected
shouldTerminateGraphLoop = true;
whyDidITerminate = TerminationReason.AllClientsDisconnected;
}
else
{
// There aren't any clients and never have been - timeout?
TimeSpan timeElapsed = DateTime.Now - startingTime;
if (timeElapsed.TotalSeconds > TIMEOUT_SECONDS)
{
shouldTerminateGraphLoop = true;
whyDidITerminate = TerminationReason.NoClientsTimeout;
}
}
}
}
}
catch (Exception ex)
{
SendDebugMessageWithException("Error running graph: ", ex);
whyDidITerminate = TerminationReason.Error;
SignalGraphStartedEvent(false);
}
finally
{
try
{
// Raise 'done' event first, before any possible AccessExceptions
switch (whyDidITerminate)
{
case TerminationReason.AllClientsDisconnected:
if (Finished != null)
{
Finished(this, new ConversionEndedEventArgs(false, "All clients disconnected."));
}
break;
case TerminationReason.NoClientsTimeout:
if (Finished != null)
{
Finished(this, new ConversionEndedEventArgs(false, "No clients ever connected."));
}
break;
case TerminationReason.UserCancelled:
if (Finished != null)
{
Finished(this, new ConversionEndedEventArgs(false, "User cancelled."));
}
break;
case TerminationReason.Error:
if (Finished != null)
{
Finished(this, new ConversionEndedEventArgs(true, "Unspecified error."));
}
break;
default:
if (Finished != null)
{
Finished(this, new ConversionEndedEventArgs(false, "Finished but no additional info."));
}
break;
}
// Stop graph
FilterState graphState;
IMediaControl mediaControl2 = (IMediaControl)graphBuilder;
mediaControl2.GetState(50, out graphState);
if (graphState == FilterState.Running)
{
mediaControl2.Pause();
mediaControl2.Stop(); // Throwing AccessViolationException: attempted to read or write protected memory (probably a badly written filter somewhere)
}
}
catch (AccessViolationException)
{
SendDebugMessage("Ignoring expected AViolationException", 0);
}
catch (Exception ex)
{
SendDebugMessageWithException("Ignoring exception when closing graph: ", ex);
}
// Close sink - can take a loooong time
CloseNetworkSink();
/*//so do in a separate thread...
* Thread t = new Thread(CloseNetworkSink);
* t.Start();*/
}
}
protected override void CreateGraphBuilder()
{
_dvdGraph = (IDvdGraphBuilder) new DvdGraphBuilder();
DsError.ThrowExceptionForHR(_dvdGraph.GetFiltergraph(out _graphBuilder));
_streamCount = 3; // Allow Video, CC, and Subtitle
}
/// <summary>
/// The event wait.
/// </summary>
private void EventWait()
{
// Returned when GetEvent is called but there are no events
const int E_ABORT = unchecked ((int)0x80004004);
int hr;
IntPtr p1, p2;
EventCode ec;
// Console.WriteLine("LoopStarted");
do
{
// If we are shutting down
if (this.shouldExitEventLoop)
{
break;
}
// Make sure that we don't access the media event interface
// after it has already been released.
if (this.mediaEvent == null)
{
return;
}
// Avoid contention for m_State
lock (this)
{
// If we are not shutting down
if (!this.shouldExitEventLoop)
{
// Read the event
for (hr = this.mediaEvent.GetEvent(out ec, out p1, out p2, 100);
hr >= 0;
hr = this.mediaEvent.GetEvent(out ec, out p1, out p2, 100))
{
// Console.WriteLine("InLoop");
//// Write the event name to the debug window
// Debug.WriteLine(ec.ToString());
// If the clip is finished playing
if (ec == EventCode.Complete)
{
// Call Stop() to set state
this.Stop();
// Throw event
if (this.FileComplete != null)
{
this.FileComplete(this, EventArgs.Empty);
}
}
else if (ec == EventCode.StepComplete)
{
Console.WriteLine("StepComplete");
// Throw event
if (this.StepComplete != null)
{
this.StepComplete(this, EventArgs.Empty);
}
}
// Release any resources the message allocated
hr = this.mediaEvent.FreeEventParams(ec, p1, p2);
DsError.ThrowExceptionForHR(hr);
}
// If the error that exited the loop wasn't due to running out of events
if (hr != E_ABORT)
{
DsError.ThrowExceptionForHR(hr);
}
}
else
{
// We are shutting down
break;
}
}
}while (true);
// Console.WriteLine("LoopExited");
}
/// <summary>
/// The build graph.
/// </summary>
/// <exception cref="ArgumentOutOfRangeException"></exception>
private void BuildGraph()
{
if (this.VideoFilename == string.Empty)
{
return;
}
this.filterGraph = (IFilterGraph2) new FilterGraph();
// #if DEBUG
this.rotEntry = new DsROTEntry(this.filterGraph);
// #endif
// IFileSourceFilter urlSourceFilter = new URLReader() as IFileSourceFilter;
// IBaseFilter sourceFilter = urlSourceFilter as IBaseFilter;
// string fileURL = string.Concat(@"file:///", this.filename.Replace("\\","/"));
// hr = urlSourceFilter.Load(fileURL, null);
// DsError.ThrowExceptionForHR(hr);
// this.filterGraph.AddFilter(sourceFilter, "URL Source");
IBaseFilter sourceFilter;
this.filterGraph.AddSourceFilter(this.VideoFilename, "File Source", out sourceFilter);
// Create the SampleGrabber interface
this.sampleGrabber = (ISampleGrabber) new SampleGrabber();
var baseGrabFlt = (IBaseFilter)this.sampleGrabber;
this.ConfigureSampleGrabber(this.sampleGrabber);
// Add the frame grabber to the graph
int hr = this.filterGraph.AddFilter(baseGrabFlt, "Ds.NET Grabber");
if (hr != 0)
{
ErrorLogger.WriteLine(
"Error in m_graphBuilder.AddFilter(). Could not add filter. Message: " + DsError.GetErrorText(hr));
}
IPin sampleGrabberIn = DsFindPin.ByDirection(baseGrabFlt, PinDirection.Input, 0);
IPin sampleGrabberOut = DsFindPin.ByDirection(baseGrabFlt, PinDirection.Output, 0);
IPin sourceOut;
// Iterate through source output pins, to find video output pin to be connected to
// the sample grabber
int i = 0;
do
{
sourceOut = DsFindPin.ByDirection(sourceFilter, PinDirection.Output, i);
if (sourceOut == null)
{
throw new ArgumentOutOfRangeException("Found no compatible video source output pin");
}
hr = this.filterGraph.Connect(sourceOut, sampleGrabberIn);
i++;
}while (hr < 0);
DsError.ThrowExceptionForHR(hr);
hr = this.filterGraph.Render(sampleGrabberOut);
DsError.ThrowExceptionForHR(hr);
//// Have the graph builder construct its the appropriate graph automatically
// hr = this.graphBuilder.RenderFile(filename, null);
// DsError.ThrowExceptionForHR(hr);
// QueryInterface for DirectShow interfaces
this.mediaControl = (IMediaControl)this.filterGraph;
// this.mediaEventEx = (IMediaEventEx)this.graphBuilder;
this.mediaSeeking = (IMediaSeeking)this.filterGraph;
this.mediaPosition = (IMediaPosition)this.filterGraph;
this.mediaEvent = (IMediaEvent)this.filterGraph;
//hr = this.mediaSeeking.IsFormatSupported(TimeFormat.Frame);
//if (hr != 0)
//{
// this.isFrameTimeCapable = false;
//}
//else
//{
// this.isFrameTimeCapable = true;
// string text = DsError.GetErrorText(hr);
// hr = this.mediaSeeking.SetTimeFormat(TimeFormat.Frame);
// text = DsError.GetErrorText(hr);
//}
// hr = this.mediaSeeking.GetTimeFormat(out this.timeFormat);
// DsError.ThrowExceptionForHR(hr);
// Query for video interfaces, which may not be relevant for audio files
this.videoWindow = this.filterGraph as IVideoWindow;
hr = this.videoWindow.put_AutoShow(OABool.False);
DsError.ThrowExceptionForHR(hr);
this.basicVideo = this.filterGraph as IBasicVideo;
// Query for audio interfaces, which may not be relevant for video-only files
this.basicAudio = this.filterGraph as IBasicAudio;
//// Have the graph signal event via window callbacks for performance
// hr = this.mediaEventEx.SetNotifyWindow(this.Handle, WMGraphNotify, IntPtr.Zero);
// DsError.ThrowExceptionForHR(hr);
// Get the event handle the graph will use to signal
// when events occur
IntPtr hEvent;
hr = this.mediaEvent.GetEventHandle(out hEvent);
DsError.ThrowExceptionForHR(hr);
// Reset event loop exit flag
this.shouldExitEventLoop = false;
// Create a new thread to wait for events
this.eventThread = new Thread(this.EventWait);
this.eventThread.Name = "Media Event Thread";
this.eventThread.Start();
this.GetFrameStepInterface();
// Update the SampleGrabber.
this.SaveSizeInfo(this.sampleGrabber);
}
public static IEnumerator <AudioEncoder> EnumerateEncoders()
{
ICreateDevEnum deviceEnumerator = null;
try
{
deviceEnumerator = (ICreateDevEnum) new CreateDevEnum();
IEnumMoniker monikerEnum = null;
try
{
int hr =
deviceEnumerator.CreateClassEnumerator(FilterGraphTools.AudioCompressorCategoryClassId,
out monikerEnum, CDef.None);
DsError.ThrowExceptionForHR(hr);
var monikers = new IMoniker[1];
while (true)
{
try
{
hr = monikerEnum.Next(1, monikers, IntPtr.Zero);
DsError.ThrowExceptionForHR(hr);
object bag;
Guid id = FilterGraphTools.IPropertyBagInterfaceId;
if (monikers[0] == null)
{
break;
}
monikers[0].BindToStorage(null, null, ref id, out bag);
var propertyBag = (IPropertyBag)bag;
Marshal.ReleaseComObject(propertyBag);
object variantName;
hr = propertyBag.Read(FriendlyNameParameter, out variantName, null);
DsError.ThrowExceptionForHR(hr);
string friendlyName = Convert.ToString(variantName, CultureInfo.InvariantCulture);
Guid id2 = FilterGraphTools.IBaseFilterInterfaceId;
object filter;
monikers[0].BindToObject(null, null, ref id2, out filter);
if (filter != null)
{
yield return(new AudioEncoder(friendlyName, (IBaseFilter)filter));
}
}
finally
{
if (monikers[0] != null)
{
Marshal.ReleaseComObject(monikers[0]);
}
}
}
}
finally
{
if (monikerEnum != null)
{
Marshal.ReleaseComObject(monikerEnum);
}
}
}
finally
{
if (deviceEnumerator != null)
{
Marshal.ReleaseComObject(deviceEnumerator);
}
}
}
/// <summary>
/// Initialize the graph
/// </summary>
public void InitGraph()
{
if (theDevice == null)
{
return;
}
//Create the Graph
graphBuilder = (IGraphBuilder) new FilterGraph();
//Create the Capture Graph Builder
ICaptureGraphBuilder2 captureGraphBuilder = null;
captureGraphBuilder = (ICaptureGraphBuilder2) new CaptureGraphBuilder2();
//Create the media control for controlling the graph
mediaControl = (IMediaControl)this.graphBuilder;
// Attach the filter graph to the capture graph
int hr = captureGraphBuilder.SetFiltergraph(this.graphBuilder);
DsError.ThrowExceptionForHR(hr);
//Add the Video input device to the graph
hr = graphBuilder.AddFilter(theDevice, "source filter");
DsError.ThrowExceptionForHR(hr);
//Add the Video compressor filter to the graph
hr = graphBuilder.AddFilter(theCompressor, "compressor filter");
DsError.ThrowExceptionForHR(hr);
//Create the file writer part of the graph. SetOutputFileName does this for us, and returns the mux and sink
IBaseFilter mux;
IFileSinkFilter sink;
hr = captureGraphBuilder.SetOutputFileName(MediaSubType.Avi, textBox1.Text, out mux, out sink);
DsError.ThrowExceptionForHR(hr);
//Render any preview pin of the device
hr = captureGraphBuilder.RenderStream(PinCategory.Preview, MediaType.Video, theDevice, null, null);
DsError.ThrowExceptionForHR(hr);
//Connect the device and compressor to the mux to render the capture part of the graph
hr = captureGraphBuilder.RenderStream(PinCategory.Capture, MediaType.Video, theDevice, theCompressor, mux);
DsError.ThrowExceptionForHR(hr);
#if DEBUG
m_rot = new DsROTEntry(graphBuilder);
#endif
//get the video window from the graph
IVideoWindow videoWindow = null;
videoWindow = (IVideoWindow)graphBuilder;
//Set the owener of the videoWindow to an IntPtr of some sort (the Handle of any control - could be a form / button etc.)
hr = videoWindow.put_Owner(panel1.Handle);
DsError.ThrowExceptionForHR(hr);
//Set the style of the video window
hr = videoWindow.put_WindowStyle(WindowStyle.Child | WindowStyle.ClipChildren);
DsError.ThrowExceptionForHR(hr);
// Position video window in client rect of main application window
hr = videoWindow.SetWindowPosition(0, 0, panel1.Width, panel1.Height);
DsError.ThrowExceptionForHR(hr);
// Make the video window visible
hr = videoWindow.put_Visible(OABool.True);
DsError.ThrowExceptionForHR(hr);
Marshal.ReleaseComObject(mux);
Marshal.ReleaseComObject(sink);
Marshal.ReleaseComObject(captureGraphBuilder);
}
public void SetMediaItem(IResourceLocator locator, string mediaItemTitle)
{
// free previous opened resource
FilterGraphTools.TryDispose(ref _resourceAccessor);
FilterGraphTools.TryDispose(ref _rot);
_state = PlayerState.Active;
_isPaused = true;
try
{
_resourceLocator = locator;
_mediaItemTitle = mediaItemTitle;
if (_resourceLocator.NativeResourcePath.IsNetworkResource)
{
_resourceAccessor = _resourceLocator.CreateAccessor() as INetworkResourceAccessor;
if (_resourceAccessor == null)
{
throw new IllegalCallException("The VideoPlayer can only play network resources of type INetworkResourceAccessor");
}
ServiceRegistration.Get <ILogger>().Debug("{0}: Initializing for network media item '{1}'", PlayerTitle, SourcePathOrUrl);
}
else
{
ILocalFsResourceAccessor lfsr;
if (!_resourceLocator.TryCreateLocalFsAccessor(out lfsr))
{
throw new IllegalCallException("The VideoPlayer can only play local file system resources");
}
_resourceAccessor = lfsr;
ServiceRegistration.Get <ILogger>().Debug("{0}: Initializing for media item '{1}'", PlayerTitle, SourcePathOrUrl);
}
// Create a DirectShow FilterGraph
CreateGraphBuilder();
// Add it in ROT (Running Object Table) for debug purpose, it allows to view the Graph from outside (i.e. graphedit)
_rot = new DsROTEntry(_graphBuilder);
// Add a notification handler (see WndProc)
_instancePtr = Marshal.AllocCoTaskMem(4);
IMediaEventEx mee = _graphBuilder as IMediaEventEx;
if (mee != null)
{
mee.SetNotifyWindow(SkinContext.Form.Handle, WM_GRAPHNOTIFY, _instancePtr);
}
// Create the Allocator / Presenter object
AddPresenter();
ServiceRegistration.Get <ILogger>().Debug("{0}: Adding audio renderer", PlayerTitle);
AddAudioRenderer();
ServiceRegistration.Get <ILogger>().Debug("{0}: Adding preferred codecs", PlayerTitle);
AddPreferredCodecs();
ServiceRegistration.Get <ILogger>().Debug("{0}: Adding file source", PlayerTitle);
AddFileSource();
ServiceRegistration.Get <ILogger>().Debug("{0}: Run graph", PlayerTitle);
//This needs to be done here before we check if the evr pins are connected
//since this method gives players the chance to render the last bits of the graph
OnBeforeGraphRunning();
// Now run the graph, i.e. the DVD player needs a running graph before getting informations from dvd filter.
IMediaControl mc = (IMediaControl)_graphBuilder;
int hr = mc.Run();
DsError.ThrowExceptionForHR(hr);
_initialized = true;
OnGraphRunning();
}
catch (Exception)
{
Shutdown();
throw;
}
}
private void BuildGraph()
{
int hr = 0;
graphBuilder = (IFilterGraph2) new FilterGraph();
rot = new DsROTEntry(graphBuilder);
ICaptureGraphBuilder2 capBuilder = (ICaptureGraphBuilder2) new CaptureGraphBuilder2();
capBuilder.SetFiltergraph(graphBuilder);
// Get the BDA network provider specific for this given network type
networkProvider = BDAUtils.GetNetworkProvider(networkType);
hr = graphBuilder.AddFilter(networkProvider, "BDA Network Provider");
DsError.ThrowExceptionForHR(hr);
tuner = (ITuner)networkProvider;
// Get a tuning space for this network type
tuningSpace = BDAUtils.GetTuningSpace(networkType);
hr = tuner.put_TuningSpace(tuningSpace);
DsError.ThrowExceptionForHR(hr);
// Create a tune request from this tuning space
tuneRequest = BDAUtils.CreateTuneRequest(tuningSpace);
// Is it okay ?
hr = tuner.Validate(tuneRequest);
if (hr == 0)
{
// Set it
hr = tuner.put_TuneRequest(tuneRequest);
DsError.ThrowExceptionForHR(hr);
// found a BDA Tuner and a BDA Capture that can connect to this network provider
BDAUtils.AddBDATunerAndDemodulatorToGraph(graphBuilder, networkProvider, out bdaTuner, out bdaCapture);
if ((bdaTuner != null) && (bdaCapture != null))
{
// Create and add the mpeg2 demux
mpeg2Demux = (IBaseFilter) new MPEG2Demultiplexer();
hr = graphBuilder.AddFilter(mpeg2Demux, "MPEG2 Demultiplexer");
DsError.ThrowExceptionForHR(hr);
// connect it to the BDA Capture
hr = capBuilder.RenderStream(null, null, bdaCapture, null, mpeg2Demux);
DsError.ThrowExceptionForHR(hr);
// Add the two mpeg2 transport stream helper filters
BDAUtils.AddTransportStreamFiltersToGraph(graphBuilder, out bdaTIF, out bdaSecTab);
if ((bdaTIF != null) && (bdaSecTab != null))
{
// Render all the output pins of the demux (missing filters are added)
for (int i = 0; i < 5; i++)
{
IPin pin = DsFindPin.ByDirection(mpeg2Demux, PinDirection.Output, i);
hr = graphBuilder.Render(pin);
Marshal.ReleaseComObject(pin);
}
}
}
}
// Currently only DVBT Network Provider support this interface...
freqMap = (IFrequencyMap)networkProvider;
}
/// <summary>
/// Displays a property page for a filter
/// </summary>
/// <param name="dev">The filter for which to display a property page</param>
private void DisplayPropertyPage(IBaseFilter dev)
{
//Get the ISpecifyPropertyPages for the filter
ISpecifyPropertyPages pProp = dev as ISpecifyPropertyPages;
int hr = 0;
if (pProp == null)
{
//If the filter doesn't implement ISpecifyPropertyPages, try displaying IAMVfwCompressDialogs instead!
IAMVfwCompressDialogs compressDialog = dev as IAMVfwCompressDialogs;
if (compressDialog != null)
{
hr = compressDialog.ShowDialog(VfwCompressDialogs.Config, IntPtr.Zero);
DsError.ThrowExceptionForHR(hr);
}
return;
}
//Get the name of the filter from the FilterInfo struct
FilterInfo filterInfo;
hr = dev.QueryFilterInfo(out filterInfo);
DsError.ThrowExceptionForHR(hr);
// Get the propertypages from the property bag
DsCAUUID caGUID;
hr = pProp.GetPages(out caGUID);
DsError.ThrowExceptionForHR(hr);
// Check for property pages on the output pin
IPin pPin = DsFindPin.ByDirection(dev, PinDirection.Output, 0);
ISpecifyPropertyPages pProp2 = pPin as ISpecifyPropertyPages;
if (pProp2 != null)
{
DsCAUUID caGUID2;
hr = pProp2.GetPages(out caGUID2);
DsError.ThrowExceptionForHR(hr);
if (caGUID2.cElems > 0)
{
int soGuid = Marshal.SizeOf(typeof(Guid));
// Create a new buffer to hold all the GUIDs
IntPtr p1 = Marshal.AllocCoTaskMem((caGUID.cElems + caGUID2.cElems) * soGuid);
// Copy over the pages from the Filter
for (int x = 0; x < caGUID.cElems * soGuid; x++)
{
Marshal.WriteByte(p1, x, Marshal.ReadByte(caGUID.pElems, x));
}
// Add the pages from the pin
for (int x = 0; x < caGUID2.cElems * soGuid; x++)
{
Marshal.WriteByte(p1, x + (caGUID.cElems * soGuid), Marshal.ReadByte(caGUID2.pElems, x));
}
// Release the old memory
Marshal.FreeCoTaskMem(caGUID.pElems);
Marshal.FreeCoTaskMem(caGUID2.pElems);
// Reset caGUID to include both
caGUID.pElems = p1;
caGUID.cElems += caGUID2.cElems;
}
}
// Create and display the OlePropertyFrame
object oDevice = (object)dev;
hr = OleCreatePropertyFrame(this.Handle, 0, 0, filterInfo.achName, 1, ref oDevice, caGUID.cElems, caGUID.pElems, 0, 0, IntPtr.Zero);
DsError.ThrowExceptionForHR(hr);
// Release COM objects
Marshal.FreeCoTaskMem(caGUID.pElems);
Marshal.ReleaseComObject(pProp);
if (filterInfo.pGraph != null)
{
Marshal.ReleaseComObject(filterInfo.pGraph);
}
}
///////////////////////////////////////////////////////////////////////////////
// Inherited methods //
///////////////////////////////////////////////////////////////////////////////
#region OVERRIDES
#endregion //OVERRIDES
///////////////////////////////////////////////////////////////////////////////
// Eventhandler //
///////////////////////////////////////////////////////////////////////////////
#region EVENTS
///////////////////////////////////////////////////////////////////////////////
// Eventhandler for UI, Menu, Buttons, Toolbars etc. //
///////////////////////////////////////////////////////////////////////////////
#region WINDOWSEVENTHANDLER
#endregion //WINDOWSEVENTHANDLER
///////////////////////////////////////////////////////////////////////////////
// Eventhandler for Custom Defined Events //
///////////////////////////////////////////////////////////////////////////////
#region CUSTOMEVENTHANDLER
#endregion //CUSTOMEVENTHANDLER
#endregion //EVENTS
///////////////////////////////////////////////////////////////////////////////
// Methods and Eventhandling for Background tasks //
///////////////////////////////////////////////////////////////////////////////
#region BACKGROUNDWORKER
#endregion //BACKGROUNDWORKER
///////////////////////////////////////////////////////////////////////////////
// Methods for doing main class job //
///////////////////////////////////////////////////////////////////////////////
#region PRIVATEMETHODS
/// <summary>
/// Build the filter graph
/// </summary>
/// <returns>True if successful, otherwise false.</returns>
private bool SetupGraph()
{
int hr;
// Get the graphbuilder object
this.filterGraph = new FilterGraph() as IFilterGraph2;
// Get a ICaptureGraphBuilder2 to help build the graph
ICaptureGraphBuilder2 captureGraph = (ICaptureGraphBuilder2) new CaptureGraphBuilder2();
try
{
// Link the ICaptureGraphBuilder2 to the IFilterGraph2
hr = captureGraph.SetFiltergraph(this.filterGraph);
DsError.ThrowExceptionForHR(hr);
#if DEBUG
// Allows you to view the graph with GraphEdit File/Connect
this.dsRot = new DsROTEntry(this.filterGraph);
#endif
// Our data source
IBaseFilter bitmapSource = (IBaseFilter) new GenericSampleSourceFilter();
try
{
// Get the pin from the filter so we can configure it
IPin ipin = DsFindPin.ByDirection(bitmapSource, PinDirection.Output, 0);
try
{
// Configure the pin using the provided BitmapInfo
this.ConfigurePusher((IGenericSampleConfig)ipin);
}
catch (Exception ex)
{
ExceptionMethods.HandleException(ex);
return(false);
}
finally
{
Marshal.ReleaseComObject(ipin);
}
// Add the source filter to the graph
hr = this.filterGraph.AddFilter(bitmapSource, "GenericSampleSourceFilter");
Marshal.ThrowExceptionForHR(hr);
IBaseFilter smartTee = new SmartTee() as IBaseFilter;
// Add the smart tee filter to the graph
hr = this.filterGraph.AddFilter(smartTee, "Smart Tee");
Marshal.ThrowExceptionForHR(hr);
// Add the Video compressor filter to the graph
if (this.videoCompressor != null)
{
hr = this.filterGraph.AddFilter(this.videoCompressor, "video compressor filter");
DsError.ThrowExceptionForHR(hr);
}
// Create the file writer part of the graph.
// SetOutputFileName does this for us, and returns the mux and sink
IBaseFilter mux;
IFileSinkFilter sink;
hr = captureGraph.SetOutputFileName(
MediaSubType.Avi,
this.videoExportProperties.OutputVideoProperties.Filename,
out mux,
out sink);
DsError.ThrowExceptionForHR(hr);
// Connect the bitmap source output to the smart tee
hr = captureGraph.RenderStream(
null,
null,
bitmapSource,
null,
smartTee);
DsError.ThrowExceptionForHR(hr);
// Render the smart tee capture pin to the capture part including
// compressor to the file muxer.
hr = captureGraph.RenderStream(
null,
null,
smartTee,
this.videoCompressor,
mux);
DsError.ThrowExceptionForHR(hr);
// Render the smart tee preview pin to the default video renderer
hr = captureGraph.RenderStream(
null,
null,
smartTee,
null,
null);
DsError.ThrowExceptionForHR(hr);
// Configure the Video Window
this.videoWindow = this.filterGraph as IVideoWindow;
this.ConfigureVideoWindow(this.videoWindow, this.previewWindow);
}
catch (Exception ex)
{
ExceptionMethods.HandleException(ex);
return(false);
}
finally
{
//Marshal.ReleaseComObject(bitmapSource);
}
// Grab some other interfaces
this.mediaControl = this.filterGraph as IMediaControl;
}
catch (Exception ex)
{
ExceptionMethods.HandleException(ex);
return(false);
}
finally
{
Marshal.ReleaseComObject(captureGraph);
}
return(true);
}
void TestMenusAndButtons()
{
int hr;
IDvdCmd ppCmd;
DvdDomain dvdd;
int pulButtonsAvailable;
int pulCurrentButton;
// Top menu
hr = m_idc2.ShowMenu(DvdMenuId.Title, DvdCmdFlags.Flush | DvdCmdFlags.SendEvents, out ppCmd);
DsError.ThrowExceptionForHR(hr);
Thread.Sleep(100);
Application.DoEvents();
hr = m_idi2.GetCurrentDomain(out dvdd);
DsError.ThrowExceptionForHR(hr);
Debug.Assert(dvdd == DvdDomain.VideoManagerMenu, "TestMenusAndButtons");
hr = m_idc2.SelectButton(2);
DsError.ThrowExceptionForHR(hr);
Thread.Sleep(100);
Application.DoEvents();
hr = m_idi2.GetCurrentButton(out pulButtonsAvailable, out pulCurrentButton);
DsError.ThrowExceptionForHR(hr);
Debug.Assert(pulCurrentButton == 2, "TestMenusAndButtons2");
Debug.Assert(pulButtonsAvailable == 2, "TestMenusAndButtons2a");
// Button 1 leads to a chapter menu with 2 items
hr = m_idc2.SelectButton(1);
DsError.ThrowExceptionForHR(hr);
Thread.Sleep(100);
Application.DoEvents();
hr = m_idc2.ActivateButton();
DsError.ThrowExceptionForHR(hr);
Thread.Sleep(100);
hr = m_idc2.ReturnFromSubmenu(DvdCmdFlags.Flush | DvdCmdFlags.SendEvents, out ppCmd);
DsError.ThrowExceptionForHR(hr);
Thread.Sleep(100);
hr = m_idc2.SelectRelativeButton(DvdRelativeButton.Lower);
DsError.ThrowExceptionForHR(hr);
Thread.Sleep(100);
hr = m_idi2.GetCurrentButton(out pulButtonsAvailable, out pulCurrentButton);
DsError.ThrowExceptionForHR(hr);
Debug.Assert(pulCurrentButton == 2, "TestMenusAndButtons2");
hr = m_idc2.SelectAndActivateButton(1);
DsError.ThrowExceptionForHR(hr);
Thread.Sleep(100);
hr = m_idc2.SelectButton(2);
DsError.ThrowExceptionForHR(hr);
Thread.Sleep(100);
hr = m_idc2.SelectAtPosition(new Point(130, 130));
DsError.ThrowExceptionForHR(hr);
Thread.Sleep(100);
hr = m_idi2.GetCurrentButton(out pulButtonsAvailable, out pulCurrentButton);
DsError.ThrowExceptionForHR(hr);
Debug.Assert(pulCurrentButton == 1, "TestMenusAndButtons2");
hr = m_idc2.ReturnFromSubmenu(DvdCmdFlags.Flush | DvdCmdFlags.SendEvents, out ppCmd);
DsError.ThrowExceptionForHR(hr);
Thread.Sleep(100);
hr = m_idc2.ActivateAtPosition(new Point(130, 130));
DsError.ThrowExceptionForHR(hr);
Thread.Sleep(100);
}
public void Seek(int timeInMs)
{
DsError.ThrowExceptionForHR(seeker.SetPositions(new DsLong(timeInMs * 10000), AMSeekingSeekingFlags.AbsolutePositioning, null, AMSeekingSeekingFlags.NoPositioning));
DsError.ThrowExceptionForHR(control.GetState(1000, out state));
}
void TestPauseResume()
{
int hr;
IDvdCmd ppCmd;
DvdDomain dvdd;
DvdPlaybackLocation2 pLocation, pLocation2;
AllowPlay();
hr = m_idc2.PlayChapterInTitle(1, 2, DvdCmdFlags.Flush | DvdCmdFlags.SendEvents, out ppCmd);
DsError.ThrowExceptionForHR(hr);
Thread.Sleep(500);
hr = m_idc2.Pause(true);
DsError.ThrowExceptionForHR(hr);
Thread.Sleep(3000);
hr = m_idi2.GetCurrentLocation(out pLocation);
DsError.ThrowExceptionForHR(hr);
Thread.Sleep(3000);
hr = m_idi2.GetCurrentLocation(out pLocation2);
DsError.ThrowExceptionForHR(hr);
Debug.Assert(pLocation.TimeCode.bSeconds == pLocation2.TimeCode.bSeconds, "TestPauseResume");
hr = m_idc2.Pause(false);
DsError.ThrowExceptionForHR(hr);
Thread.Sleep(500);
hr = m_idi2.GetCurrentLocation(out pLocation2);
DsError.ThrowExceptionForHR(hr);
Debug.Assert(pLocation.TimeCode.bSeconds != pLocation2.TimeCode.bSeconds, "TestPauseResume2");
hr = m_idc2.ShowMenu(DvdMenuId.Root, DvdCmdFlags.Flush | DvdCmdFlags.SendEvents, out ppCmd);
DsError.ThrowExceptionForHR(hr);
Thread.Sleep(500);
hr = m_idi2.GetCurrentDomain(out dvdd);
DsError.ThrowExceptionForHR(hr);
Debug.Assert(dvdd == DvdDomain.VideoManagerMenu, "TestPauseResume3");
hr = m_idc2.Resume(DvdCmdFlags.None, out ppCmd);
DsError.ThrowExceptionForHR(hr);
Thread.Sleep(500);
hr = m_idi2.GetCurrentDomain(out dvdd);
DsError.ThrowExceptionForHR(hr);
Debug.Assert(dvdd == DvdDomain.Title, "TestPauseResume4");
hr = m_idc2.StillOff();
DsError.ThrowExceptionForHR(hr);
hr = m_idc2.Stop();
DsError.ThrowExceptionForHR(hr);
}
/// <summary>
/// Opens the media by initializing the DirectShow graph
//
// +----------------+ +----------------+ +-----------------------+
// +---------------------+ | LavVideo | | VobSub | | EVR+CustomPresenter |
// | LavSplitterSource | |----------------| |----------------| |-----------------------|
// +---------------------+ | | | | | |
// | | | | | | | VIDEO |
// | video +|->+---------+<-+ IN OUT +->+------+<-+ VID_IN OUT +-> +-+ <-+ RENDERER |
// | | +----------------+ | | | |
// | audio +|->+------+ | | +-----------------------+
// | | | +----------------+ +-+<-+ TXT_IN |
// | subtitle +|->+--+ | | LavAudio | | | |
// +---------------------+ | | |----------------| | +----------------+ +-----------------------+
// | | | | | | DShow output device |
// | | | | xxx |-----------------------|
// | +--+<-+ IN OUT +->+--x | x-----------------------+ | |
// | +----------------+ | | AUDIO |
// | | <-+ RENDERER |
// | | | |
// +--------------------------------+ +-----------------------+
//
/// </summary>
// protected virtual void OpenSource()
// {
// /* Make sure we clean up any remaining mess */
// //if (m_graph != null) RemoveAllFilters(m_graph);
// FreeResources();
// if (m_sourceUri == null)
// return;
// string fileSource = m_sourceUri.OriginalString;
// if (string.IsNullOrEmpty(fileSource))
// return;
// try
// {
// if (m_graph != null) Marshal.ReleaseComObject(m_graph);
// /* Creates the GraphBuilder COM object */
// m_graph = new FilterGraphNoThread() as IGraphBuilder;
// if (m_graph == null)
// throw new Exception("Could not create a graph");
// /* Add our prefered audio renderer */
// var audioRenderer = InsertAudioRenderer(AudioRenderer);
// if (_audioRenderer != null) Marshal.ReleaseComObject(_audioRenderer);
// _audioRenderer = audioRenderer;
// if ((System.Environment.OSVersion.Platform == PlatformID.Win32NT &&
// (System.Environment.OSVersion.Version.Major == 5)))
// VideoRenderer = VideoRendererType.VideoMixingRenderer9;
// IBaseFilter renderer = CreateVideoRenderer(VideoRenderer, m_graph, 2);
// if (_renderer != null) Marshal.ReleaseComObject(_renderer);
// _renderer = renderer;
// //if (_renderer != null)
// // m_graph.AddFilter((IBaseFilter)_renderer, "Renderer");
// var filterGraph = m_graph as IFilterGraph2;
// if (filterGraph == null)
// throw new Exception("Could not QueryInterface for the IFilterGraph2");
// ILAVAudioSettings lavAudioSettings;
// ILAVAudioStatus lavStatus;
// IBaseFilter audioDecoder = FilterProvider.GetAudioFilter(out lavAudioSettings, out lavStatus);
// if (audioDecoder != null)
// {
// if (_audio != null) Marshal.ReleaseComObject(_audio);
// _audio = audioDecoder;
// lavAudioSettings.SetRuntimeConfig(true);
// m_graph.AddFilter((IBaseFilter)_audio, "LavAudio");
// }
// ILAVSplitterSettings splitterSettings;
// IFileSourceFilter splitter = FilterProvider.GetSplitterSource(out splitterSettings);
// //IBaseFilter splitter = FilterProvider.GetSplitter(out splitterSettings);
// if (splitter != null)
// {
// splitter.Load(fileSource, null);
// if (_splitter != null) Marshal.ReleaseComObject(_splitter);
// _splitter = splitter;
// splitterSettings.SetRuntimeConfig(true);
// m_graph.AddFilter((IBaseFilter)splitter, "LavSplitter");
// }
// int hr = 0;
// /* We will want to enum all the pins on the source filter */
// IEnumPins pinEnum;
// hr = ((IBaseFilter)splitter).EnumPins(out pinEnum);
// DsError.ThrowExceptionForHR(hr);
// IntPtr fetched = IntPtr.Zero;
// IPin[] pins = { null };
// /* Counter for how many pins successfully rendered */
// if (VideoRenderer == VideoRendererType.VideoMixingRenderer9)
// {
// var mixer = renderer as IVMRMixerControl9;
// if (mixer != null)
// {
// VMR9MixerPrefs dwPrefs;
// mixer.GetMixingPrefs(out dwPrefs);
// dwPrefs &= ~VMR9MixerPrefs.RenderTargetMask;
// dwPrefs |= VMR9MixerPrefs.RenderTargetRGB;
// //mixer.SetMixingPrefs(dwPrefs);
// }
// }
// // Test using FFDShow Video Decoder Filter
// ILAVVideoSettings lavVideoSettings;
// IBaseFilter lavVideo = FilterProvider.GetVideoFilter(out lavVideoSettings);
// if (_video != null) Marshal.ReleaseComObject(_video);
// _video = lavVideo;
// IBaseFilter vobSub = FilterProvider.GetVobSubFilter();
// if (vobSub != null)
// {
// m_graph.AddFilter(vobSub, "VobSub");
// IDirectVobSub vss = vobSub as IDirectVobSub;
// if (_vobsub != null) Marshal.ReleaseComObject(_vobsub);
// _vobsub = vss;
// InitSubSettings();
// }
// if (lavVideo != null)
// {
// lavVideoSettings.SetRuntimeConfig(true);
// m_graph.AddFilter(lavVideo, "LavVideo");
// }
// int ret;
// IBaseFilter dcDsp = FilterProvider.GetDCDSPFilter();
// if (dcDsp != null)
// {
// _dspFilter = (IDCDSPFilterInterface)dcDsp;
// //hr = i.set_PCMDataBeforeMainDSP(true);
// hr = m_graph.AddFilter((IBaseFilter)dcDsp, "VobSub");
// ret = m_graph.Connect(DsFindPin.ByName((IBaseFilter)splitter, "Audio"), DsFindPin.ByDirection(audioDecoder, PinDirection.Input, 0));
// ret = m_graph.Connect(DsFindPin.ByDirection((IBaseFilter)audioDecoder, PinDirection.Output, 0), DsFindPin.ByDirection(_dspFilter, PinDirection.Input, 0));
// ret = m_graph.Connect(DsFindPin.ByDirection((IBaseFilter)_dspFilter, PinDirection.Output, 0), DsFindPin.ByDirection(audioRenderer, PinDirection.Input, 0));
// //bool d = false;
// //int delay = 0;
// //hr = i.get_EnableDelay(ref d);
// int cnt = 0;
// object intf = null;
// //hr = i.set_EnableDelay(true);
// //hr = i.set_Delay(0);
// hr = _dspFilter.set_AddFilter(0, TDCFilterType.ftEqualizer);
// hr = _dspFilter.get_FilterCount(ref cnt);
// hr = _dspFilter.get_FilterInterface(0, out intf);
// _equalizer = (IDCEqualizer)intf;
// hr = _dspFilter.set_AddFilter(0, TDCFilterType.ftDownMix);
// hr = _dspFilter.get_FilterInterface(0, out intf);
// _downmix = (IDCDownMix)intf;
// hr = _dspFilter.set_AddFilter(0, TDCFilterType.ftAmplify);
// hr = _dspFilter.get_FilterInterface(0, out intf);
// _amplify = (IDCAmplify)intf;
// _equalizer.set_Seperate(false);
// }
// bool subconnected = false;
// ret = m_graph.Connect(DsFindPin.ByName((IBaseFilter)splitter, "Video"), DsFindPin.ByDirection(lavVideo, PinDirection.Input, 0));
// ret = m_graph.Connect(DsFindPin.ByDirection((IBaseFilter)lavVideo, PinDirection.Output, 0), DsFindPin.ByDirection(vobSub, PinDirection.Input, 0));
// if (ret == 0)
// {
// int lc;
// ((IDirectVobSub)vobSub).get_LanguageCount(out lc);
// subconnected = (lc != 0);
// IPin pn = DsFindPin.ByName((IBaseFilter)splitter, "Subtitle");
// if (pn != null)
// {
// ret = m_graph.Connect(pn, DsFindPin.ByDirection(vobSub, PinDirection.Input, 1));
// ((IDirectVobSub)vobSub).get_LanguageCount(out lc);
// subconnected = (lc != 0);
// }
// ret = m_graph.Connect(DsFindPin.ByDirection(vobSub, PinDirection.Output, 0),
// DsFindPin.ByDirection(renderer, PinDirection.Input, 0));
// }
// else
// {
// ret = m_graph.Connect(DsFindPin.ByDirection(lavVideo, PinDirection.Output, 0),
// DsFindPin.ByDirection(renderer, PinDirection.Input, 0));
// }
// /* Loop over each pin of the source filter */
// while (pinEnum.Next(pins.Length, pins, fetched) == 0)
// {
// IPin cTo;
// pins[0].ConnectedTo(out cTo);
// if (cTo == null)
// {
// // this should not happen if the filtegraph is manually connected in a good manner
// ret = filterGraph.RenderEx(pins[0], AMRenderExFlags.RenderToExistingRenderers, IntPtr.Zero);
// }
// else
// {
// Marshal.ReleaseComObject(cTo);
// }
// Marshal.ReleaseComObject(pins[0]);
// }
// if (lavVideoSettings != null)
// {
// if (lavVideoSettings.CheckHWAccelSupport(LAVHWAccel.HWAccel_CUDA) != 0)
// {
// ret = lavVideoSettings.SetHWAccel(LAVHWAccel.HWAccel_CUDA);
// }
// else if (lavVideoSettings.CheckHWAccelSupport(LAVHWAccel.HWAccel_QuickSync) != 0)
// {
// ret = lavVideoSettings.SetHWAccel(LAVHWAccel.HWAccel_QuickSync);
// }
// else if (lavVideoSettings.CheckHWAccelSupport(LAVHWAccel.HWAccel_DXVA2Native) != 0)
// {
// ret = lavVideoSettings.SetHWAccel(LAVHWAccel.HWAccel_DXVA2Native);
// }
// else if (lavVideoSettings.CheckHWAccelSupport(LAVHWAccel.HWAccel_DXVA2) != 0)
// {
// ret = lavVideoSettings.SetHWAccel(LAVHWAccel.HWAccel_DXVA2);
// }
// else if (lavVideoSettings.CheckHWAccelSupport(LAVHWAccel.HWAccel_DXVA2CopyBack) != 0)
// {
// ret = lavVideoSettings.SetHWAccel(LAVHWAccel.HWAccel_DXVA2CopyBack);
// }
// }
// //hr = m_graph.RenderFile(fileSource, null);
// Marshal.ReleaseComObject(pinEnum);
// IAMStreamSelect selector = splitter as IAMStreamSelect;
// int numstreams;
// selector.Count(out numstreams);
// AMMediaType mt;
// AMStreamSelectInfoFlags fl;
// SubtitleStreams.Clear();
// VideoStreams.Clear();
// AudioStreams.Clear();
// for (int i = 0; i < numstreams; i++)
// {
// int lcid;
// int group;
// string name;
// object o, o2;
// selector.Info(i, out mt, out fl, out lcid, out group, out name, out o, out o2);
// switch (group)
// {
// case 0:
// VideoStreams.Add(name);
// break;
// case 1:
// AudioStreams.Add(name);
// break;
// case 2:
// SubtitleStreams.Add(name);
// break;
// }
// if (o != null) Marshal.ReleaseComObject(o);
// if (o2 != null) Marshal.ReleaseComObject(o2);
// }
// OnPropertyChanged("SubtitleStreams");
// OnPropertyChanged("VideoStreams");
// OnPropertyChanged("AudioStreams");
// //Marshal.ReleaseComObject(splitter);
// /* Configure the graph in the base class */
// SetupFilterGraph(m_graph);
//#if DEBUG
// /* Adds the GB to the ROT so we can view
//* it in graphedit */
// m_dsRotEntry = new DsROTEntry(m_graph);
//#endif
// //if (_splitterSettings != null)
// //{
// // Marshal.ReleaseComObject(_splitterSettings);
// // _splitterSettings = null;
// //}
// if (_splitterSettings != null) Marshal.ReleaseComObject(_splitterSettings);
// _splitterSettings = (ILAVSplitterSettings)splitter;
// //ret = _splitterSettings.SetRuntimeConfig(true);
// //if (ret != 0)
// // throw new Exception("Could not set SetRuntimeConfig to true");
// //string sss = "*:*";
// //LAVSubtitleMode mode = LAVSubtitleMode.LAVSubtitleMode_NoSubs;
// //mode = _splitterSettings.GetSubtitleMode();
// //if (mode != LAVSubtitleMode.LAVSubtitleMode_Default)
// // throw new Exception("Could not set GetAdvancedSubtitleConfige");
// //ret = _splitterSettings.SetSubtitleMode(LAVSubtitleMode.LAVSubtitleMode_Advanced);
// //if (ret != 1)
// // throw new Exception("Could not set SetAdvancedSubtitleConfige");
// //ret = _splitterSettings.SetAdvancedSubtitleConfig(sss);
// //if (ret != 1)
// // throw new Exception("Could not set SetAdvancedSubtitleConfige");
// //sss = "";
// //ret = _splitterSettings.GetAdvancedSubtitleConfig(out sss);
// //if (ret != 0)
// // throw new Exception("Could not set GetAdvancedSubtitleConfige");
// //IPin sub = DsFindPin.ByDirection((IBaseFilter)splitter, PinDirection.Output, 2);
// //PinInfo pi;
// //sub.QueryPinInfo(out pi);
// SIZE a, b;
// if ((_displayControl).GetNativeVideoSize(out a, out b) == 0)
// {
// if (a.cx > 0 && a.cy > 0)
// {
// HasVideo = true;
// SetNativePixelSizes(a);
// }
// }
// if (!subconnected)
// {
// InvokeNoSubtitleLoaded(new EventArgs());
// }
// else
// {
// InitSubSettings();
// }
// /* Sets the NaturalVideoWidth/Height */
// //SetNativePixelSizes(renderer);
// //InvokeMediaFailed(new MediaFailedEventArgs(sss, null));
// }
// catch (Exception ex)
// {
// /* This exection will happen usually if the media does
// * not exist or could not open due to not having the
// * proper filters installed */
// FreeResources();
// /* Fire our failed event */
// InvokeMediaFailed(new MediaFailedEventArgs(ex.Message, ex));
// }
// finally
// {
// string filters = string.Join(Environment.NewLine, EnumAllFilters(m_graph).ToArray());
// System.Diagnostics.Debug.WriteLine(filters);
// }
// InvokeMediaOpened();
// }
protected virtual void OpenSource()
{
_eqEnabled = false;
//if (m_graph != null)
//{
// //RemoveAllFilters(m_graph);
// Marshal.ReleaseComObject(m_graph);
//}
/* Make sure we clean up any remaining mess */
FreeResources();
if (m_sourceUri == null)
{
return;
}
string fileSource = m_sourceUri.OriginalString;
if (string.IsNullOrEmpty(fileSource))
{
return;
}
try
{
int hr = 0;
/* Creates the GraphBuilder COM object */
m_graph = new FilterGraphNoThread() as IGraphBuilder;
if (_displayControl != null)
{
Marshal.ReleaseComObject(_displayControl);
_displayControl = null;
}
if (_displayControlVMR != null)
{
Marshal.ReleaseComObject(_displayControlVMR);
_displayControlVMR = null;
}
if (m_graph == null)
{
throw new Exception("Could not create a graph");
}
var filterGraph = m_graph as IFilterGraph2;
var flt = EnumAllFilters(m_graph).ToList();
if (filterGraph == null)
{
throw new Exception("Could not QueryInterface for the IFilterGraph2");
}
/* Add our prefered audio renderer */
var audioRenderer = InsertAudioRenderer(AudioRenderer);
if (audioRenderer != null)
{
if (_audioRenderer != null)
{
Marshal.ReleaseComObject(_audioRenderer);
}
_audioRenderer = audioRenderer;
}
if ((System.Environment.OSVersion.Platform == PlatformID.Win32NT &&
(System.Environment.OSVersion.Version.Major == 5)))
{
VideoRenderer = VideoRendererType.VideoMixingRenderer9;
}
if (_presenterSettings != null)
{
Marshal.ReleaseComObject(_presenterSettings);
}
if (_renderer != null)
{
Marshal.ReleaseComObject(_renderer);
}
IBaseFilter renderer = InsertVideoRenderer(VideoRenderer, m_graph, 1);
_renderer = renderer;
ILAVAudioSettings lavAudioSettings;
ILAVAudioStatus lavStatus;
IBaseFilter audioDecoder = FilterProvider.GetAudioFilter(out lavAudioSettings, out lavStatus);
if (audioDecoder != null)
{
if (_audio != null)
{
Marshal.ReleaseComObject(_audio);
}
_audio = audioDecoder;
_audioStatus = lavStatus;
_audioSettings = lavAudioSettings;
hr = (int)lavAudioSettings.SetRuntimeConfig(true);
hr = m_graph.AddFilter((IBaseFilter)audioDecoder, "LavAudio");
DsError.ThrowExceptionForHR(hr);
#if DEBUG
hr = (int)lavAudioSettings.SetTrayIcon(true);
#endif
}
ILAVSplitterSettings splitterSettings;
IFileSourceFilter splitter = FilterProvider.GetSplitterSource(out splitterSettings);
if (splitter != null)
{
if (_splitter != null)
{
Marshal.ReleaseComObject(_splitter);
}
_splitter = splitter;
_splitterSettings = (ILAVSplitterSettings)splitterSettings;
hr = splitterSettings.SetRuntimeConfig(true);
hr = splitter.Load(fileSource, null);
if (hr != 0)
{
throw new Exception("Playback of this file is not supported!");
}
hr = m_graph.AddFilter((IBaseFilter)splitter, "LavSplitter");
DsError.ThrowExceptionForHR(hr);
}
IEnumPins pinEnum;
hr = ((IBaseFilter)splitter).EnumPins(out pinEnum);
DsError.ThrowExceptionForHR(hr);
IntPtr fetched = IntPtr.Zero;
IPin[] pins = { null };
if (VideoRenderer == VideoRendererType.VideoMixingRenderer9)
{
var mixer = _renderer as IVMRMixerControl9;
if (mixer != null)
{
VMR9MixerPrefs dwPrefs;
mixer.GetMixingPrefs(out dwPrefs);
dwPrefs &= ~VMR9MixerPrefs.RenderTargetMask;
dwPrefs |= VMR9MixerPrefs.RenderTargetRGB;
mixer.SetMixingPrefs(dwPrefs);
}
}
ILAVVideoSettings lavVideoSettings;
IBaseFilter lavVideo = FilterProvider.GetVideoFilter(out lavVideoSettings);
if (lavVideo != null)
{
if (_video != null)
{
Marshal.ReleaseComObject(_video);
}
_video = lavVideo;
if (lavVideoSettings != null)
{
_videoSettings = lavVideoSettings;
lavVideoSettings.SetRuntimeConfig(true);
hr = lavVideoSettings.SetHWAccel(LAVHWAccel.HWAccel_None);
// check for best acceleration available
//if (lavVideoSettings.CheckHWAccelSupport(LAVHWAccel.HWAccel_CUDA) != 0)
//{
// hr = lavVideoSettings.SetHWAccel(LAVHWAccel.HWAccel_CUDA);
// hr = lavVideoSettings.SetHWAccelResolutionFlags(LAVHWResFlag.SD | LAVHWResFlag.HD | LAVHWResFlag.UHD);
//}
//else if (lavVideoSettings.CheckHWAccelSupport(LAVHWAccel.HWAccel_QuickSync) != 0)
//{
// hr = lavVideoSettings.SetHWAccel(LAVHWAccel.HWAccel_QuickSync);
// hr = lavVideoSettings.SetHWAccelResolutionFlags(LAVHWResFlag.SD | LAVHWResFlag.HD | LAVHWResFlag.UHD);
//}
//else
if (lavVideoSettings.CheckHWAccelSupport(LAVHWAccel.HWAccel_DXVA2Native) != 0)
{
hr = lavVideoSettings.SetHWAccel(LAVHWAccel.HWAccel_DXVA2Native);
hr = lavVideoSettings.SetHWAccelResolutionFlags(LAVHWResFlag.SD | LAVHWResFlag.HD | LAVHWResFlag.UHD);
}
//else
//if (lavVideoSettings.CheckHWAccelSupport(LAVHWAccel.HWAccel_DXVA2CopyBack) != 0)
//{
// hr = lavVideoSettings.SetHWAccel(LAVHWAccel.HWAccel_DXVA2CopyBack);
// hr = lavVideoSettings.SetHWAccelResolutionFlags(LAVHWResFlag.SD | LAVHWResFlag.HD | LAVHWResFlag.UHD);
//}
#if DEBUG
hr = lavVideoSettings.SetTrayIcon(true);
#endif
}
hr = m_graph.AddFilter(_video, "LavVideo");
DsError.ThrowExceptionForHR(hr);
}
IBaseFilter vobSub = FilterProvider.GetVobSubFilter();
if (vobSub != null)
{
try
{
hr = m_graph.AddFilter(vobSub, "VobSub");
DsError.ThrowExceptionForHR(hr);
IDirectVobSub vss = vobSub as IDirectVobSub;
if (_vobsub != null)
{
Marshal.ReleaseComObject(_vobsub);
}
_vobsub = vss;
InitSubSettings();
}
catch { }
}
hr = m_graph.Connect(DsFindPin.ByName((IBaseFilter)splitter, "Audio"), DsFindPin.ByDirection(_audio, PinDirection.Input, 0));
if (hr == 0)
{
HasAudio = true;
}
else
{
HasAudio = false;
}
IBaseFilter dcDsp = FilterProvider.GetDCDSPFilter();
if (dcDsp != null)
{
if (_dspFilter != null)
{
Marshal.ReleaseComObject(_dspFilter);
}
_dspFilter = (IDCDSPFilterInterface)dcDsp;
if (HasAudio)
{
hr = m_graph.AddFilter((IBaseFilter)_dspFilter, "AudioProcessor");
hr = _dspFilter.set_EnableBitrateConversionBeforeDSP(true);
hr = ((IDCDSPFilterVisualInterface)_dspFilter).set_VISafterDSP(true);
hr = m_graph.Connect(DsFindPin.ByDirection((IBaseFilter)_audio, PinDirection.Output, 0), DsFindPin.ByDirection(_dspFilter, PinDirection.Input, 0));
DsError.ThrowExceptionForHR(hr);
hr = m_graph.Connect(DsFindPin.ByDirection((IBaseFilter)_dspFilter, PinDirection.Output, 0), DsFindPin.ByDirection(_audioRenderer, PinDirection.Input, 0));
var cb = new AudioCallback(this);
hr = _dspFilter.set_CallBackPCM(cb);
object intf = null;
hr = _dspFilter.set_AddFilter(0, TDCFilterType.ftEqualizer);
hr = _dspFilter.get_FilterInterface(0, out intf);
_equalizer = (IDCEqualizer)intf;
_equalizer.set_Seperate(false);
}
}
else
{
if (HasAudio)
{
hr = m_graph.Connect(DsFindPin.ByDirection((IBaseFilter)_audio, PinDirection.Output, 0), DsFindPin.ByDirection(_audioRenderer, PinDirection.Input, 0));
}
}
bool subconnected = false;
hr = m_graph.Connect(DsFindPin.ByName((IBaseFilter)_splitter, "Video"), DsFindPin.ByDirection(_video, PinDirection.Input, 0));
if (hr == 0)
{
HasVideo = true;
}
else
{
HasVideo = false;
}
if (HasVideo)
{
hr = m_graph.Connect(DsFindPin.ByDirection((IBaseFilter)_video, PinDirection.Output, 0), DsFindPin.ByDirection(vobSub, PinDirection.Input, 0));
DsError.ThrowExceptionForHR(hr);
if (hr == 0)
{
int lc;
((IDirectVobSub)vobSub).get_LanguageCount(out lc);
subconnected = (lc != 0);
IPin pn = DsFindPin.ByName((IBaseFilter)splitter, "Subtitle");
if (pn != null)
{
hr = m_graph.Connect(pn, DsFindPin.ByDirection(vobSub, PinDirection.Input, 1));
((IDirectVobSub)vobSub).get_LanguageCount(out lc);
subconnected = (lc != 0);
}
hr = m_graph.Connect(DsFindPin.ByDirection(vobSub, PinDirection.Output, 0),
DsFindPin.ByDirection(_renderer, PinDirection.Input, 0));
}
else
{
if (_vobsub != null)
{
Marshal.ReleaseComObject(_vobsub);
}
_vobsub = null;
hr = m_graph.Connect(DsFindPin.ByDirection(_video, PinDirection.Output, 0),
DsFindPin.ByDirection(_renderer, PinDirection.Input, 0));
}
}
/* Loop over each pin of the source filter */
while (pinEnum.Next(pins.Length, pins, fetched) == 0)
{
IPin cTo;
pins[0].ConnectedTo(out cTo);
if (cTo == null)
{
// this should not happen if the filtegraph is manually connected in a good manner
hr = filterGraph.RenderEx(pins[0], AMRenderExFlags.RenderToExistingRenderers, IntPtr.Zero);
}
else
{
Marshal.ReleaseComObject(cTo);
}
Marshal.ReleaseComObject(pins[0]);
}
Marshal.ReleaseComObject(pinEnum);
var selector = splitter as IAMStreamSelect;
int numstreams;
selector.Count(out numstreams);
AMMediaType mt;
AMStreamSelectInfoFlags fl;
SubtitleStreams.Clear();
VideoStreams.Clear();
AudioStreams.Clear();
for (int i = 0; i < numstreams; i++)
{
int lcid;
int group;
string name;
object o, o2;
selector.Info(i, out mt, out fl, out lcid, out group, out name, out o, out o2);
switch (group)
{
case 0:
VideoStreams.Add(name);
break;
case 1:
AudioStreams.Add(name);
break;
case 2:
SubtitleStreams.Add(name);
break;
}
if (o != null)
{
Marshal.ReleaseComObject(o);
}
if (o2 != null)
{
Marshal.ReleaseComObject(o2);
}
}
OnPropertyChanged("SubtitleStreams");
OnPropertyChanged("VideoStreams");
OnPropertyChanged("AudioStreams");
/* Configure the graph in the base class */
SetupFilterGraph(m_graph);
#if DEBUG
/* Adds the GB to the ROT so we can view
* it in graphedit */
m_dsRotEntry = new DsROTEntry(m_graph);
#endif
SIZE a, b;
if (HasVideo && _displayControl != null && (_displayControl).GetNativeVideoSize(out a, out b) == 0)
{
var sz = MediaPlayerBase.GetVideoSize(_renderer, PinDirection.Input, 0);
if (a.cx > 0 && a.cy > 0)
{
SetNativePixelSizes(a);
}
}
if (!subconnected)
{
InvokeNoSubtitleLoaded(new EventArgs());
}
else
{
InitSubSettings();
}
}
catch (Exception ex)
{
/* This exection will happen usually if the media does
* not exist or could not open due to not having the
* proper filters installed */
FreeResources();
/* Fire our failed event */
InvokeMediaFailed(new MediaFailedEventArgs(ex.Message, ex));
}
InvokeMediaOpened();
}
private void StartCapture()
{
int hr;
ISampleGrabber sampGrabber = null;
IBaseFilter capFilter = null;
ICaptureGraphBuilder2 capGraph = null;
if (System.IO.File.Exists(txtAviFileName.Text))
{
// Get the graphbuilder object
m_FilterGraph = (IFilterGraph2) new FilterGraph();
m_mediaCtrl = m_FilterGraph as IMediaControl;
// Get the ICaptureGraphBuilder2
capGraph = (ICaptureGraphBuilder2) new CaptureGraphBuilder2();
// Get the SampleGrabber interface
sampGrabber = (ISampleGrabber) new SampleGrabber();
// Start building the graph
hr = capGraph.SetFiltergraph(m_FilterGraph);
DsError.ThrowExceptionForHR(hr);
// Add the video source
hr = m_FilterGraph.AddSourceFilter(txtAviFileName.Text, "File Source (Async.)", out capFilter);
DsError.ThrowExceptionForHR(hr);
//add AVI Decompressor
IBaseFilter pAVIDecompressor = (IBaseFilter) new AVIDec();
hr = m_FilterGraph.AddFilter(pAVIDecompressor, "AVI Decompressor");
DsError.ThrowExceptionForHR(hr);
IBaseFilter ffdshow;
try
{
// Create Decoder filter COM object (ffdshow video decoder)
Type comtype = Type.GetTypeFromCLSID(new Guid("{04FE9017-F873-410E-871E-AB91661A4EF7}"));
if (comtype == null)
{
throw new NotSupportedException("Creating ffdshow video decoder COM object fails.");
}
object comobj = Activator.CreateInstance(comtype);
ffdshow = (IBaseFilter)comobj; // error ocurrs! raised exception
comobj = null;
}
catch { CustomMessageBox.Show("Please install/reinstall ffdshow"); return; }
hr = m_FilterGraph.AddFilter(ffdshow, "ffdshow");
DsError.ThrowExceptionForHR(hr);
//
IBaseFilter baseGrabFlt = (IBaseFilter)sampGrabber;
ConfigureSampleGrabber(sampGrabber);
// Add the frame grabber to the graph
hr = m_FilterGraph.AddFilter(baseGrabFlt, "Ds.NET Grabber");
DsError.ThrowExceptionForHR(hr);
IBaseFilter vidrender = (IBaseFilter) new VideoRenderer();
hr = m_FilterGraph.AddFilter(vidrender, "Render");
DsError.ThrowExceptionForHR(hr);
IPin captpin = DsFindPin.ByDirection(capFilter, PinDirection.Output, 0);
IPin ffdpinin = DsFindPin.ByName(ffdshow, "In");
IPin ffdpinout = DsFindPin.ByName(ffdshow, "Out");
IPin samppin = DsFindPin.ByName(baseGrabFlt, "Input");
hr = m_FilterGraph.Connect(captpin, ffdpinin);
DsError.ThrowExceptionForHR(hr);
hr = m_FilterGraph.Connect(ffdpinout, samppin);
DsError.ThrowExceptionForHR(hr);
FileWriter filewritter = new FileWriter();
IFileSinkFilter filemux = (IFileSinkFilter)filewritter;
//filemux.SetFileName("test.avi",);
//hr = capGraph.RenderStream(null, MediaType.Video, capFilter, null, vidrender);
// DsError.ThrowExceptionForHR(hr);
SaveSizeInfo(sampGrabber);
// setup buffer
if (m_handle == IntPtr.Zero)
{
m_handle = Marshal.AllocCoTaskMem(m_stride * m_videoHeight);
}
// tell the callback to ignore new images
m_PictureReady = new ManualResetEvent(false);
m_bGotOne = false;
m_bRunning = false;
timer1 = new Thread(timer);
timer1.IsBackground = true;
timer1.Start();
m_mediaextseek = m_FilterGraph as IAMExtendedSeeking;
m_mediapos = m_FilterGraph as IMediaPosition;
m_mediaseek = m_FilterGraph as IMediaSeeking;
double length = 0;
m_mediapos.get_Duration(out length);
trackBar_mediapos.Minimum = 0;
trackBar_mediapos.Maximum = (int)length;
Start();
}
else
{
MessageBox.Show("File does not exist");
}
}
/// <summary> build the capture graph for grabber. </summary>
private void SetupGraph(DsDevice dev, int iWidth, int iHeight, short iBPP, Control hControl, long iframerate)
{
int hr;
ISampleGrabber sampGrabber = null;
IBaseFilter capFilter = null;
IPin pCaptureOut = null;
IPin pSampleIn = null;
IPin pRenderIn = null;
// Get the graphbuilder object
m_FilterGraph = new FilterGraph() as IFilterGraph2;
try
{
#if DEBUG
m_rot = new DsROTEntry(m_FilterGraph);
#endif
// add the video input device
hr = m_FilterGraph.AddSourceFilterForMoniker(dev.Mon, null, dev.Name, out capFilter);
DsError.ThrowExceptionForHR(hr);
// Find the still pin
m_pinStill = DsFindPin.ByCategory(capFilter, PinCategory.Still, 0);
// Didn't find one. Is there a preview pin?
if (m_pinStill == null)
{
m_pinStill = DsFindPin.ByCategory(capFilter, PinCategory.Preview, 0);
}
// Still haven't found one. Need to put a splitter in so we have
// one stream to capture the bitmap from, and one to display. Ok, we
// don't *have* to do it that way, but we are going to anyway.
if (m_pinStill == null)
{
IPin pRaw = null;
IPin pSmart = null;
// There is no still pin
m_VidControl = null;
// Add a splitter
IBaseFilter iSmartTee = (IBaseFilter) new SmartTee();
try
{
hr = m_FilterGraph.AddFilter(iSmartTee, "SmartTee");
DsError.ThrowExceptionForHR(hr);
// Find the find the capture pin from the video device and the
// input pin for the splitter, and connnect them
pRaw = DsFindPin.ByCategory(capFilter, PinCategory.Capture, 0);
pSmart = DsFindPin.ByDirection(iSmartTee, PinDirection.Input, 0);
hr = m_FilterGraph.Connect(pRaw, pSmart);
DsError.ThrowExceptionForHR(hr);
// Now set the capture and still pins (from the splitter)
m_pinStill = DsFindPin.ByName(iSmartTee, "Preview");
pCaptureOut = DsFindPin.ByName(iSmartTee, "Capture");
// If any of the default config items are set, perform the config
// on the actual video device (rather than the splitter)
if (iHeight + iWidth + iBPP + iframerate > 0)
{
SetConfigParms(pRaw, iWidth, iHeight, iBPP, iframerate);
}
}
finally
{
if (pRaw != null)
{
Marshal.ReleaseComObject(pRaw);
}
if (pRaw != pSmart)
{
Marshal.ReleaseComObject(pSmart);
}
if (pRaw != iSmartTee)
{
Marshal.ReleaseComObject(iSmartTee);
}
}
}
else
{
// Get a control pointer (used in Click())
m_VidControl = capFilter as IAMVideoControl;
pCaptureOut = DsFindPin.ByCategory(capFilter, PinCategory.Capture, 0);
// If any of the default config items are set
if (iHeight + iWidth + iBPP + iframerate > 0)
{
SetConfigParms(m_pinStill, iWidth, iHeight, iBPP, iframerate);
}
}
// Get the SampleGrabber interface
sampGrabber = new SampleGrabber() as ISampleGrabber;
// Configure the sample grabber
IBaseFilter baseGrabFlt = sampGrabber as IBaseFilter;
ConfigureSampleGrabber(sampGrabber);
pSampleIn = DsFindPin.ByDirection(baseGrabFlt, PinDirection.Input, 0);
// Get the default video renderer
IBaseFilter pRenderer = new VideoRendererDefault() as IBaseFilter;
hr = m_FilterGraph.AddFilter(pRenderer, "Renderer");
DsError.ThrowExceptionForHR(hr);
pRenderIn = DsFindPin.ByDirection(pRenderer, PinDirection.Input, 0);
// Add the sample grabber to the graph
hr = m_FilterGraph.AddFilter(baseGrabFlt, "Ds.NET Grabber");
DsError.ThrowExceptionForHR(hr);
if (m_VidControl == null)
{
// Connect the Still pin to the sample grabber
hr = m_FilterGraph.Connect(m_pinStill, pSampleIn);
DsError.ThrowExceptionForHR(hr);
// Connect the capture pin to the renderer
hr = m_FilterGraph.Connect(pCaptureOut, pRenderIn);
DsError.ThrowExceptionForHR(hr);
}
else
{
// Connect the capture pin to the renderer
hr = m_FilterGraph.Connect(pCaptureOut, pRenderIn);
DsError.ThrowExceptionForHR(hr);
// Connect the Still pin to the sample grabber
hr = m_FilterGraph.Connect(m_pinStill, pSampleIn);
DsError.ThrowExceptionForHR(hr);
}
// Learn the video properties
SaveSizeInfo(sampGrabber);
ConfigVideoWindow(hControl);
// Start the graph
IMediaControl mediaCtrl = m_FilterGraph as IMediaControl;
hr = mediaCtrl.Run();
DsError.ThrowExceptionForHR(hr);
}
finally
{
if (sampGrabber != null)
{
Marshal.ReleaseComObject(sampGrabber);
sampGrabber = null;
}
if (pCaptureOut != null)
{
Marshal.ReleaseComObject(pCaptureOut);
pCaptureOut = null;
}
if (pRenderIn != null)
{
Marshal.ReleaseComObject(pRenderIn);
pRenderIn = null;
}
if (pSampleIn != null)
{
Marshal.ReleaseComObject(pSampleIn);
pSampleIn = null;
}
}
}
/// <summary>
/// Get the image from the Still pin. The returned image can turned into a bitmap with
/// Bitmap b = new Bitmap(cam.Width, cam.Height, cam.Stride, PixelFormat.Format24bppRgb, m_ip);
/// If the image is upside down, you can fix it with
/// b.RotateFlip(RotateFlipType.RotateNoneFlipY);
/// </summary>
/// <returns>Returned pointer to be freed by caller with Marshal.FreeCoTaskMem</returns>
public Bitmap Grab(
ref IntPtr m_ip,
bool update_bitmap)
{
Bitmap grabbed_frame = null;
if (!paused)
{
int hr;
if (m_ipBuffer != IntPtr.Zero)
{
try
{
Marshal.FreeCoTaskMem(m_ipBuffer);
}
catch
{
}
m_ipBuffer = IntPtr.Zero;
}
// get ready to wait for new image
m_PictureReady.Reset();
bool free_mem = false;
try
{
m_ipBuffer = Marshal.AllocCoTaskMem(Math.Abs(m_stride) * m_videoHeight);
m_WantOne = true;
// If we are using a still pin, ask for a picture
if (m_VidControl != null)
{
// Tell the camera to send an image
hr = m_VidControl.SetMode(m_pinStill, VideoControlFlags.Trigger);
DsError.ThrowExceptionForHR(hr);
}
// Start waiting
if (!m_PictureReady.WaitOne(500, false))
{
//throw new Exception("Timeout waiting to get picture");
//Console.WriteLine("Timeout");
}
}
catch
{
free_mem = true;
//throw;
}
if (free_mem)
{
try
{
if (m_ipBuffer != IntPtr.Zero)
{
Marshal.FreeCoTaskMem(m_ipBuffer);
m_ipBuffer = IntPtr.Zero;
}
}
catch
{
}
}
if (m_ipBuffer != IntPtr.Zero)
{
if (lastFrame != null)
{
lastFrame.Dispose();
}
// store the last frame as a bitmap
if (update_bitmap)
{
if (bytes_per_pixel == 1)
{
grabbed_frame = new Bitmap(m_videoWidth, m_videoHeight, m_stride, PixelFormat.Format8bppIndexed, m_ipBuffer);
}
else
{
grabbed_frame = new Bitmap(m_videoWidth, m_videoHeight, m_stride, PixelFormat.Format24bppRgb, m_ipBuffer);
}
try
{
grabbed_frame.RotateFlip(RotateFlipType.RotateNoneFlipY);
}
catch
{
}
lastFrame = grabbed_frame;
m_ip = m_ipBuffer;
}
}
}
//m_ip = m_ipBuffer;
return(grabbed_frame);
}
/// <summary>
/// Sets parameters for source capture pin.
/// </summary>
/// <param name="pinSourceCapture">Pin of source capture.</param>
/// <param name="resolution">Resolution to set if possible.</param>
private static void SetSourceParams(IPin pinSourceCapture, Resolution resolution_desired)
{
int hr = 0;
AMMediaType media_type_most_appropriate = null;
AMMediaType media_type = null;
//NOTE: pSCC is not used. All we need is media_type
IntPtr pSCC = IntPtr.Zero;
bool appropriate_media_type_found = false;
try
{
IAMStreamConfig videoStreamConfig = pinSourceCapture as IAMStreamConfig;
// -------------------------------------------------------------------------
// We want the interface to expose all media types it supports and not only the last one set
hr = videoStreamConfig.SetFormat(null);
DsError.ThrowExceptionForHR(hr);
int piCount = 0;
int piSize = 0;
hr = videoStreamConfig.GetNumberOfCapabilities(out piCount, out piSize);
DsError.ThrowExceptionForHR(hr);
for (int i = 0; i < piCount; i++)
{
// ---------------------------------------------------
pSCC = Marshal.AllocCoTaskMem(piSize);
videoStreamConfig.GetStreamCaps(i, out media_type, pSCC);
FreeSCCMemory(ref pSCC);
// NOTE: we could use VideoStreamConfigCaps.InputSize or something like that to get resolution, but it's deprecated
//VideoStreamConfigCaps videoStreamConfigCaps = (VideoStreamConfigCaps)Marshal.PtrToStructure(pSCC, typeof(VideoStreamConfigCaps));
// ---------------------------------------------------
bool bit_count_ok = false;
bool sub_type_ok = false;
bool resolution_ok = false;
AnalyzeMediaType(media_type, resolution_desired, out bit_count_ok, out sub_type_ok, out resolution_ok);
if (bit_count_ok && resolution_ok)
{
if (sub_type_ok)
{
hr = videoStreamConfig.SetFormat(media_type);
DsError.ThrowExceptionForHR(hr);
appropriate_media_type_found = true;
break; // stop search, we've found appropriate media type
}
else
{
// save as appropriate if no other found
if (media_type_most_appropriate == null)
{
media_type_most_appropriate = media_type;
media_type = null; // we don't want for free it, now it's media_type_most_appropriate's problem
}
}
}
FreeMediaType(ref media_type);
}
if (!appropriate_media_type_found)
{
// Found nothing exactly as we were asked
if (media_type_most_appropriate != null)
{
// set appropriate RGB format with different resolution
hr = videoStreamConfig.SetFormat(media_type_most_appropriate);
DsError.ThrowExceptionForHR(hr);
}
else
{
// throw. We didn't find exactly what we were asked to
throw new Exception("Camera doesn't support media type with requested resolution and bits per pixel.");
//DsError.ThrowExceptionForHR(DsResults.E_InvalidMediaType);
}
}
}
catch
{
throw;
}
finally
{
// clean up
FreeMediaType(ref media_type);
FreeMediaType(ref media_type_most_appropriate);
FreeSCCMemory(ref pSCC);
}
}
/// <summary> build the capture graph for grabber. </summary>
private void SetupGraph(DsDevice dev, AMMediaType media)
{
int hr;
ISampleGrabber sampGrabber = null;
IBaseFilter capFilter = null;
ICaptureGraphBuilder2 capGraph = null;
// Get the graphbuilder object
m_FilterGraph = (IFilterGraph2) new FilterGraph();
m_mediaCtrl = m_FilterGraph as IMediaControl;
try
{
// Get the ICaptureGraphBuilder2
capGraph = (ICaptureGraphBuilder2) new CaptureGraphBuilder2();
// Get the SampleGrabber interface
sampGrabber = (ISampleGrabber) new SampleGrabber();
// Start building the graph
hr = capGraph.SetFiltergraph(m_FilterGraph);
DsError.ThrowExceptionForHR(hr);
// Add the video device
hr = m_FilterGraph.AddSourceFilterForMoniker(dev.Mon, null, "Video input", out capFilter);
DsError.ThrowExceptionForHR(hr);
// add video crossbar
// thanks to Andrew Fernie - this is to get tv tuner cards working
IAMCrossbar crossbar = null;
object o;
hr = capGraph.FindInterface(PinCategory.Capture, MediaType.Video, capFilter, typeof(IAMCrossbar).GUID, out o);
if (hr >= 0)
{
crossbar = (IAMCrossbar)o;
int oPin, iPin;
int ovLink, ivLink;
ovLink = ivLink = 0;
crossbar.get_PinCounts(out oPin, out iPin);
int pIdxRel;
PhysicalConnectorType tp;
for (int i = 0; i < iPin; i++)
{
crossbar.get_CrossbarPinInfo(true, i, out pIdxRel, out tp);
if (tp == PhysicalConnectorType.Video_Composite)
{
ivLink = i;
}
}
for (int i = 0; i < oPin; i++)
{
crossbar.get_CrossbarPinInfo(false, i, out pIdxRel, out tp);
if (tp == PhysicalConnectorType.Video_VideoDecoder)
{
ovLink = i;
}
}
try
{
crossbar.Route(ovLink, ivLink);
o = null;
}
catch
{
throw new Exception("Failed to get IAMCrossbar");
}
}
//add AVI Decompressor
IBaseFilter pAVIDecompressor = (IBaseFilter) new AVIDec();
hr = m_FilterGraph.AddFilter(pAVIDecompressor, "AVI Decompressor");
DsError.ThrowExceptionForHR(hr);
//
IBaseFilter baseGrabFlt = (IBaseFilter)sampGrabber;
ConfigureSampleGrabber(sampGrabber);
// Add the frame grabber to the graph
hr = m_FilterGraph.AddFilter(baseGrabFlt, "Ds.NET Grabber");
DsError.ThrowExceptionForHR(hr);
SetConfigParms(capGraph, capFilter, media);
hr = capGraph.RenderStream(PinCategory.Capture, MediaType.Video, capFilter, pAVIDecompressor, baseGrabFlt);
if (hr < 0)
{
hr = capGraph.RenderStream(PinCategory.Capture, MediaType.Video, capFilter, null, baseGrabFlt);
}
DsError.ThrowExceptionForHR(hr);
SaveSizeInfo(sampGrabber);
}
finally
{
if (capFilter != null)
{
Marshal.ReleaseComObject(capFilter);
capFilter = null;
}
if (sampGrabber != null)
{
Marshal.ReleaseComObject(sampGrabber);
sampGrabber = null;
}
if (capGraph != null)
{
Marshal.ReleaseComObject(capGraph);
capGraph = null;
}
}
}
private void closeInterfaces()
{
int hr = 0;
try
{
lock (this)
{
//relinquish ownership (IMPORTANT!) after hiding video window
hr = this.VideoWindow.put_Visible(OABool.False);
DsError.ThrowExceptionForHR(hr);
hr = this.VideoWindow.put_Owner(IntPtr.Zero);
DsError.ThrowExceptionForHR(hr);
if (this.MediaEventEx != null)
{
hr = this.MediaEventEx.SetNotifyWindow(IntPtr.Zero, 0, IntPtr.Zero);
DsError.ThrowExceptionForHR(hr);
}
//release and zero DirectShow interfaces
if (this.MediaEventEx != null)
{
this.MediaEventEx = null;
}
if (this.MediaSeeking != null)
{
this.MediaSeeking = null;
}
if (this.MediaPosition != null)
{
this.MediaPosition = null;
}
if (this.MediaControl != null)
{
this.MediaControl = null;
}
if (this.BasicAudio != null)
{
this.BasicAudio = null;
}
if (this.BasicVideo != null)
{
this.BasicVideo = null;
}
if (this.VideoWindow != null)
{
this.VideoWindow = null;
}
if (this.VideoFrameStep != null)
{
this.VideoFrameStep = null;
}
if (this.GraphBuilder != null)
{
this.GraphBuilder = null;
}
GC.Collect();
}
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
}
/// <summary>
/// Creates an instance of the EVR
/// </summary>
private IBaseFilter CreateEnhancedVideoRenderer(IGraphBuilder graph, int streamCount)
{
EvrPresenter presenter;
IBaseFilter filter;
lock (m_videoRendererInitLock)
{
var evr = new EnhancedVideoRenderer();
filter = evr as IBaseFilter;
int hr = graph.AddFilter(filter, string.Format("Renderer: {0}", VideoRendererType.EnhancedVideoRenderer));
DsError.ThrowExceptionForHR(hr);
/* QueryInterface for the IMFVideoRenderer */
var videoRenderer = filter as IMFVideoRenderer;
if (videoRenderer == null)
{
throw new WPFMediaKitException("Could not QueryInterface for the IMFVideoRenderer");
}
/* Create a new EVR presenter */
presenter = EvrPresenter.CreateNew();
/* Initialize the EVR renderer with the custom video presenter */
hr = videoRenderer.InitializeRenderer(null, presenter.VideoPresenter);
DsError.ThrowExceptionForHR(hr);
var presenterSettings = presenter.VideoPresenter as IEVRPresenterSettings;
if (presenterSettings == null)
{
throw new WPFMediaKitException("Could not QueryInterface for the IEVRPresenterSettings");
}
presenterSettings.SetBufferCount(3);
/* Use our interop hWnd */
IntPtr handle = GetDesktopWindow();//HwndHelper.Handle;
/* QueryInterface the IMFVideoDisplayControl */
var displayControl = presenter.VideoPresenter as IMFVideoDisplayControl;
if (displayControl == null)
{
throw new WPFMediaKitException("Could not QueryInterface the IMFVideoDisplayControl");
}
/* Configure the presenter with our hWnd */
hr = displayControl.SetVideoWindow(handle);
DsError.ThrowExceptionForHR(hr);
var filterConfig = filter as IEVRFilterConfig;
if (filterConfig != null)
{
filterConfig.SetNumberOfStreams(streamCount);
}
}
RegisterCustomAllocator(presenter);
return(filter);
}
