public void SetAndGetAllAvailableResolution(IPin VideoOutPin)
{
int hr = 0;
IAMStreamConfig streamConfig = (IAMStreamConfig)VideoOutPin;
AMMediaType CorectvidFormat = new AMMediaType();
IntPtr ptr;
hr = streamConfig.GetNumberOfCapabilities(out int piCount, out int piSize);
ptr = Marshal.AllocCoTaskMem(piSize);
for (int i = 0; i < piCount; i++)
{
hr = streamConfig.GetStreamCaps(i, out AMMediaType searchmedia, ptr);
VideoInfoHeader v = new VideoInfoHeader();
Marshal.PtrToStructure(searchmedia.formatPtr, v);
if (i == 2)// 4
{
CorectvidFormat = searchmedia;
}
}
hr = streamConfig.SetFormat(CorectvidFormat);
IntPtr pmt = IntPtr.Zero;
AMMediaType mediaType = new AMMediaType();
IAMStreamConfig streamConfig1 = (IAMStreamConfig)VideoOutPin;
hr = streamConfig1.GetFormat(out mediaType);
BitmapInfoHeader bmpih = new BitmapInfoHeader();
Marshal.PtrToStructure(mediaType.formatPtr, bmpih);
x = bmpih.Width;
y = bmpih.Height;
}
/// <summary>
/// Our chance to allocate any storage we may need
/// </summary>
/// <returns>Returns always S_OK</returns>
protected override int InternalAllocateStreamingResources()
{
// Reinitialize variables
for (int i = 0; i < InputPinCount; i++)
{
InternalDiscontinuity(i);
}
for (int i = 0; i < InputPinCount; i++)
{
AMMediaType mediaType = InputType(i);
VideoInfoHeader videoInfoHeader = new VideoInfoHeader();
Marshal.PtrToStructure(mediaType.formatPtr, videoInfoHeader);
this.inputStreams[i].StreamWidth = videoInfoHeader.BmiHeader.Width;
this.inputStreams[i].StreamHeight = videoInfoHeader.BmiHeader.Height;
this.inputStreams[i].StreamBBP = videoInfoHeader.BmiHeader.BitCount / 8;
this.inputStreams[i].StreamStride = videoInfoHeader.BmiHeader.Width * this.inputStreams[i].StreamBBP;
this.inputStreams[i].BufferTimeStamp = 0;
}
AMMediaType outputMediaType = OutputType(0);
VideoInfoHeader outputVideoInfoHeader = new VideoInfoHeader();
Marshal.PtrToStructure(outputMediaType.formatPtr, outputVideoInfoHeader);
this.outputStream.StreamWidth = outputVideoInfoHeader.BmiHeader.Width;
this.outputStream.StreamHeight = outputVideoInfoHeader.BmiHeader.Height;
this.outputStream.StreamBBP = outputVideoInfoHeader.BmiHeader.BitCount / 8;
this.outputStream.StreamStride = outputVideoInfoHeader.BmiHeader.Width * this.outputStream.StreamBBP;
this.outputStream.BufferTimeStamp = 0;
return(SOK);
}
private void SaveSizeInfo(ISampleGrabber sampGrabber)
{
int hr;
// Get the media type from the SampleGrabber
AMMediaType media = new AMMediaType();
hr = sampGrabber.GetConnectedMediaType(media);
DsError.ThrowExceptionForHR(hr);
if ((media.formatType != FormatType.VideoInfo) || (media.formatPtr == IntPtr.Zero))
{
throw new NotSupportedException("Unknown Grabber Media Format");
}
// Grab the size info
VideoInfoHeader videoInfoHeader =
(VideoInfoHeader)Marshal.PtrToStructure(media.formatPtr, typeof(VideoInfoHeader));
m_videoWidth = videoInfoHeader.BmiHeader.Width;
m_videoHeight = videoInfoHeader.BmiHeader.Height;
m_stride = m_videoWidth * (videoInfoHeader.BmiHeader.BitCount / 8);
m_avgtimeperframe = videoInfoHeader.AvgTimePerFrame;
DsUtils.FreeAMMediaType(media);
media = null;
}
public int GetLatency(out long prtLatency)
{
#if HAMED_LOG_METHOD_INFO
MethodBase method = new StackTrace().GetFrame(0).GetMethod();
Console.WriteLine(this.GetType().FullName + " - " + method.Name + " - " + method.ToString());
#endif
prtLatency = UNITS / 30;
AMMediaType mt = Pins[0].CurrentMediaType;
if (mt.majorType == MediaType.Video)
{
{
VideoInfoHeader _pvi = mt;
if (_pvi != null)
{
prtLatency = _pvi.AvgTimePerFrame;
}
}
{
VideoInfoHeader2 _pvi = mt;
if (_pvi != null)
{
prtLatency = _pvi.AvgTimePerFrame;
}
}
}
return(NOERROR);
}
/// <summary>
/// Checks if AMMediaType's frame size is appropriate for desired frame size.
/// </summary>
/// <param name="media_type">Media type to analyze.</param>
/// <param name="RefFrameSize">Desired frame size. Can be null or have 0 for height or width if it's not important.</param>
private static bool IsFrameSizeAppropiate
(
AMMediaType media_type,
FrameSize RefFrameSize
)
{
// if we were asked to choose frame size
if (RefFrameSize == null)
{
return(true);
}
VideoInfoHeader videoInfoHeader = new VideoInfoHeader();
Marshal.PtrToStructure(media_type.formatPtr, videoInfoHeader);
if (RefFrameSize.Width > 0 && videoInfoHeader.BmiHeader.Width != RefFrameSize.Width)
{
return(false);
}
if (RefFrameSize.Height > 0 && videoInfoHeader.BmiHeader.Height != RefFrameSize.Height)
{
return(false);
}
return(true);
}
void SetFormat(int formatIndex, int frameRate)
{
int capsCount, capSize;
int hr = VideoConfig.GetNumberOfCapabilities(out capsCount, out capSize);
DsError.ThrowExceptionForHR(hr);
IntPtr pSC = Marshal.AllocHGlobal(capSize);
AMMediaType mt = null;
try
{
VideoInfoHeader vih = new VideoInfoHeader();
hr = VideoConfig.GetStreamCaps(formatIndex, out mt, pSC);
DsError.ThrowExceptionForHR(hr);
if (frameRate > 0)
{
Marshal.PtrToStructure(mt.formatPtr, vih);
vih.AvgTimePerFrame = (long)(10000000.0 / frameRate);
Marshal.StructureToPtr(vih, mt.formatPtr, false);
}
hr = VideoConfig.SetFormat(mt);
DsError.ThrowExceptionForHR(hr);
}
finally
{
DsUtils.FreeAMMediaType(mt);
Marshal.FreeHGlobal(pSC);
}
}
private static short GetBitCountForMediaType(AMMediaType media_type)
{
VideoInfoHeader structure = new VideoInfoHeader();
Marshal.PtrToStructure(media_type.formatPtr, structure);
return(structure.BmiHeader.BitCount);
}
/// <summary>
/// Gets and saves mode (mediatype, format type and etc).
/// </summary>
public void SaveMode()
{
int hr;
// Get the media type from the SampleGrabber
AMMediaType media = new AMMediaType();
hr = m_SampleGrabber.GetConnectedMediaType(media);
DsError.ThrowExceptionForHR(hr);
if ((media.formatType != FormatType.VideoInfo) || (media.formatPtr == IntPtr.Zero))
{
throw new NotSupportedException("Unknown Grabber Media Format");
}
// Grab the size info
VideoInfoHeader videoInfoHeader = (VideoInfoHeader)Marshal.PtrToStructure(media.formatPtr, typeof(VideoInfoHeader));
m_videoWidth = videoInfoHeader.BmiHeader.Width;
m_videoHeight = videoInfoHeader.BmiHeader.Height;
m_videoBitCount = videoInfoHeader.BmiHeader.BitCount;
m_ImageSize = videoInfoHeader.BmiHeader.ImageSize;
DsUtils.FreeAMMediaType(media);
media = null;
}
/// <summary>
/// Get bit count for mediatype
/// </summary>
/// <param name="media_type">Media type to analyze.</param>
private static int GetBitCountForMediaType(AMMediaType media_type)
{
VideoInfoHeader videoInfoHeader = new VideoInfoHeader();
Marshal.PtrToStructure(media_type.formatPtr, videoInfoHeader);
return(videoInfoHeader.BmiHeader.BitCount);
}
/*
* public override int OnReceive(ref IMediaSampleImpl _sample)
* {
* Console.WriteLine("OnReceive ");
*
* Output.Deliver(ref _sample);
*
* return S_OK;
* }
*/
public override int GetMediaType(int iPosition, ref AMMediaType pMediaType)
{
Console.WriteLine("GetMediaType");
if (iPosition > 0)
{
return(VFW_S_NO_MORE_ITEMS);
}
if (pMediaType == null)
{
return(E_INVALIDARG);
}
if (!Input.IsConnected)
{
return(VFW_E_NOT_CONNECTED);
}
AMMediaType.Copy(Input.CurrentMediaType, ref pMediaType);
VideoInfoHeader vhi = new VideoInfoHeader();
Marshal.PtrToStructure(pMediaType.formatPtr, vhi);
vhi.BmiHeader.Compression = 0;
vhi.BmiHeader.BitCount = 24;
vhi.BmiHeader.ImageSize = vhi.BmiHeader.Width * vhi.BmiHeader.Height * 3;
pMediaType.formatPtr = Marshal.AllocCoTaskMem(pMediaType.formatSize);
Marshal.StructureToPtr(vhi, pMediaType.formatPtr, false);
pMediaType.majorType = MediaType.Video;
pMediaType.subType = MediaSubType.RGB24;
pMediaType.formatType = FormatType.VideoInfo;
pMediaType.sampleSize = vhi.BmiHeader.ImageSize;
return(NOERROR);
}
private void SetConfigParameters(ICaptureGraphBuilder2 captureGraphBuilder, IBaseFilter captureFilter, int frameRate, int width, int height)
{
object outObject;
int hr = captureGraphBuilder.FindInterface(PinCategory.Capture, MediaType.Video, captureFilter, typeof(IAMStreamConfig).GUID, out outObject);
IAMStreamConfig videoStreamConfig = outObject as IAMStreamConfig;
if (videoStreamConfig == null)
{
throw new Exception("Failed to get IAMStreamConfig");
}
AMMediaType outMedia;
hr = videoStreamConfig.GetFormat(out outMedia);
DsError.ThrowExceptionForHR(hr);
VideoInfoHeader videoInfoHeader = new VideoInfoHeader();
Marshal.PtrToStructure(outMedia.formatPtr, videoInfoHeader);
videoInfoHeader.AvgTimePerFrame = 10000000 / frameRate;
videoInfoHeader.BmiHeader.Width = width;
videoInfoHeader.BmiHeader.Height = height;
Marshal.StructureToPtr(videoInfoHeader, outMedia.formatPtr, false);
hr = videoStreamConfig.SetFormat(outMedia);
DsError.ThrowExceptionForHR(hr);
DsUtils.FreeAMMediaType(outMedia);
outMedia = null;
}
protected object setStreamConfigSetting(IAMStreamConfig streamConfig, string fieldName, object newValue)
{
if (streamConfig == null)
{
throw new NotSupportedException();
}
this.assertStopped();
this.derenderGraph();
IntPtr zero = IntPtr.Zero;
AMMediaType structure = new AMMediaType();
try
{
object obj2;
int format = streamConfig.GetFormat(out zero);
if (format != 0)
{
Marshal.ThrowExceptionForHR(format);
}
Marshal.PtrToStructure(zero, structure);
if (structure.formatType == FormatType.WaveEx)
{
obj2 = new WaveFormatEx();
}
else if (structure.formatType == FormatType.VideoInfo)
{
obj2 = new VideoInfoHeader();
}
else
{
if (structure.formatType != FormatType.VideoInfo2)
{
throw new NotSupportedException("This device does not support a recognized format block.");
}
obj2 = new VideoInfoHeader2();
}
Marshal.PtrToStructure(structure.formatPtr, obj2);
FieldInfo field = obj2.GetType().GetField(fieldName);
if (field == null)
{
throw new NotSupportedException("Unable to find the member '" + fieldName + "' in the format block.");
}
field.SetValue(obj2, newValue);
Marshal.StructureToPtr(obj2, structure.formatPtr, false);
format = streamConfig.SetFormat(structure);
if (format != 0)
{
Marshal.ThrowExceptionForHR(format);
}
}
finally
{
DsUtils.FreeAMMediaType(structure);
Marshal.FreeCoTaskMem(zero);
}
this.renderStream = false;
this.renderGraph();
this.startPreviewIfNeeded();
return(null);
}
public IBaseFilter GetVideo()
{
IBaseFilter baseDevice;
var filterGraph = new FilterGraph() as IFilterGraph2;
filterGraph.AddSourceFilterForMoniker(selectedDevice.Mon, null, selectedDevice.Name, out baseDevice);
IPin pin = DsFindPin.ByCategory(baseDevice, PinCategory.Capture, 0);
var streamConfig = pin as IAMStreamConfig;
AMMediaType media;
int iC = 0, iS = 0;
streamConfig.GetNumberOfCapabilities(out iC, out iS);
IntPtr ptr = Marshal.AllocCoTaskMem(iS);
for (int i = 0; i < iC; i++)
{
streamConfig.GetStreamCaps(i, out media, ptr);
VideoInfoHeader v;
v = new VideoInfoHeader();
Marshal.PtrToStructure(media.formatPtr, v);
}
Guid iid = typeof(IBaseFilter).GUID;
object source;
selectedDevice.Mon.BindToObject(null, null, ref iid, out source);
return((IBaseFilter)source);
}
public static AMMediaType GetVideoMediaType(short bitCount, int width, int height)
{
Guid mediaSubType = GetMediaSubTypeForBitCount(bitCount);
var VideoGroupType = new AMMediaType();
VideoGroupType.majorType = MediaType.Video;
VideoGroupType.subType = mediaSubType;
VideoGroupType.formatType = FormatType.VideoInfo;
VideoGroupType.fixedSizeSamples = true;
VideoGroupType.formatSize = Marshal.SizeOf(typeof(VideoInfoHeader));
var vif = new VideoInfoHeader();
vif.BmiHeader = new BitmapInfoHeader();
// The HEADER macro returns the BITMAPINFO within the VIDEOINFOHEADER
vif.BmiHeader.Size = Marshal.SizeOf(typeof(BitmapInfoHeader));
vif.BmiHeader.Compression = 0;
vif.BmiHeader.BitCount = bitCount;
vif.BmiHeader.Width = width;
vif.BmiHeader.Height = height;
vif.BmiHeader.Planes = 1;
int iSampleSize = vif.BmiHeader.Width * vif.BmiHeader.Height * (vif.BmiHeader.BitCount / 8);
vif.BmiHeader.ImageSize = iSampleSize;
VideoGroupType.sampleSize = iSampleSize;
VideoGroupType.formatPtr = Marshal.AllocCoTaskMem(Marshal.SizeOf(vif));
Marshal.StructureToPtr(vif, VideoGroupType.formatPtr, false);
return(VideoGroupType);
}
/// <summary>
/// Sets the number of DVD buttons found in the current DVD video
/// </summary>
/// <param name="buttonCount">The total number of buttons</param>
private void SetDvdButtonCount(int buttonCount)
{
m_dvdButtonCount = buttonCount;
if (m_dvdButtonCount == 0)
{
m_isOverButton = false;
InvokeOnOverDvdButton(m_isOverButton);
}
var mediaType = new AMMediaType();
m_dummyRendererPin.ConnectionMediaType(mediaType);
/* Check to see if its a video media type */
if (mediaType.formatType != FormatType.VideoInfo2 &&
mediaType.formatType != FormatType.VideoInfo)
{
DsUtils.FreeAMMediaType(mediaType);
return;
}
var videoInfo = new VideoInfoHeader();
/* Read the video info header struct from the native pointer */
Marshal.PtrToStructure(mediaType.formatPtr, videoInfo);
/* Get the target rect */
m_renderTargetRect = videoInfo.TargetRect.ToRectangle();
DsUtils.FreeAMMediaType(mediaType);
}
private VideoOutPinConfiguration[] GetVideoOutPins(IBaseFilter filter)
{
List <VideoOutPinConfiguration> video_out_pins = new List <VideoOutPinConfiguration>();
IEnumPins iterator;
IPin[] pins = new IPin[1];
filter.EnumPins(out iterator);
while (iterator.Next(1, pins, IntPtr.Zero) == 0)
{
PinDirection pin_direction;
pins[0].QueryDirection(out pin_direction);
if (pin_direction == PinDirection.Output)
{
int caps_count;
int caps_size;
IAMStreamConfig config = (IAMStreamConfig)pins[0];
config.GetNumberOfCapabilities(out caps_count, out caps_size);
AMMediaType type = null;
IntPtr buffer = Marshal.AllocCoTaskMem(caps_size);
for (int i = 0; i < caps_count; i++)
{
config.GetStreamCaps(i, out type, buffer);
VideoInfoHeader header = (VideoInfoHeader)Marshal.PtrToStructure(type.formatPtr, typeof(VideoInfoHeader));
if (header.BmiHeader.Width > 0)
{
video_out_pins.Add(new VideoOutPinConfiguration(filter, pins[0], i, header));
}
}
Marshal.FreeCoTaskMem(buffer);
DsUtils.FreeAMMediaType(type);
}
}
return(video_out_pins.ToArray());
}
/// <summary>
/// Checks if AMMediaType's resolution is appropriate for desired resolution.
/// </summary>
/// <param name="media_type">Media type to analyze.</param>
/// <param name="resolution_desired">Desired resolution. Can be null or have 0 for height or width if it's not important.</param>
private static bool IsResolutionAppropiate(AMMediaType media_type, Resolution resolution_desired)
{
// if we were asked to choose resolution
if (resolution_desired == null)
{
return(true);
}
VideoInfoHeader videoInfoHeader = new VideoInfoHeader();
Marshal.PtrToStructure(media_type.formatPtr, videoInfoHeader);
if (resolution_desired.Width > 0 &&
videoInfoHeader.BmiHeader.Width != resolution_desired.Width)
{
return(false);
}
if (resolution_desired.Height > 0 &&
videoInfoHeader.BmiHeader.Height != resolution_desired.Height)
{
return(false);
}
return(true);
}
private object GetField(AMMediaType mediaType, String fieldName)
{
object formatStruct;
if (mediaType.formatType == FormatType.WaveEx)
{
formatStruct = new WaveFormatEx();
}
else if (mediaType.formatType == FormatType.VideoInfo)
{
formatStruct = new VideoInfoHeader();
}
else if (mediaType.formatType == FormatType.VideoInfo2)
{
formatStruct = new VideoInfoHeader2();
}
else
{
throw new NotSupportedException("This device does not support a recognized format block.");
}
// Retrieve the nested structure
Marshal.PtrToStructure(mediaType.formatPtr, formatStruct);
// Find the required field
Type structType = formatStruct.GetType();
FieldInfo fieldInfo = structType.GetField(fieldName);
if (fieldInfo != null)
{
return(fieldInfo.GetValue(formatStruct));
}
return(null);
}
public CAviDS(string filename, double playSpeed)
{
builder = new FilterGraph() as IGraphBuilder;
grabber = new SampleGrabber() as ISampleGrabber;
mediaType = new AMMediaType();
mediaType.majorType = MediaType.Video;
mediaType.subType = MediaSubType.RGB32;
mediaType.formatType = FormatType.VideoInfo;
DsError.ThrowExceptionForHR(grabber.SetMediaType(mediaType));
DsError.ThrowExceptionForHR(builder.AddFilter(grabber as IBaseFilter, "Sample Grabber(DTXMania)"));
DsError.ThrowExceptionForHR(builder.RenderFile(filename, null));
CDirectShow.ConnectNullRendererFromSampleGrabber(builder, grabber as IBaseFilter);
if (builder is IVideoWindow videoWindow)
{
videoWindow.put_AutoShow(OABool.False);
}
DsError.ThrowExceptionForHR(grabber.GetConnectedMediaType(mediaType));
videoInfo = (VideoInfoHeader)Marshal.PtrToStructure(mediaType.formatPtr, typeof(VideoInfoHeader));
nWidth = videoInfo.BmiHeader.Width;
nHeight = videoInfo.BmiHeader.Height;
seeker = builder as IMediaSeeking;
DsError.ThrowExceptionForHR(seeker.GetDuration(out nMediaLength));
DsError.ThrowExceptionForHR(seeker.SetRate(playSpeed / 20.0));
control = builder as IMediaControl;
filter = builder as IMediaFilter;
grabber.SetBufferSamples(BufferThem: true);
Run();
Pause();
bPlaying = false;
bPause = false;
}
private static Camera_NET.Resolution GetResolutionForMediaType(AMMediaType media_type)
{
VideoInfoHeader structure = new VideoInfoHeader();
Marshal.PtrToStructure(media_type.formatPtr, structure);
return(new Camera_NET.Resolution(structure.BmiHeader.Width, structure.BmiHeader.Height));
}
/// <summary>
/// Gets and saves mode (mediatype, format type and etc).
/// </summary>
public Resolution SaveMode()
{
lock (_DeltaLock)
{
int hr;
// Get the media type from the SampleGrabber
AMMediaType media = new AMMediaType();
hr = _SampleGrabber.GetConnectedMediaType(media);
DsError.ThrowExceptionForHR(hr);
if ((media.formatType != FormatType.VideoInfo) || (media.formatPtr == IntPtr.Zero))
{
throw new NotSupportedException("Unknown Grabber Media Format");
}
// Grab the size info
VideoInfoHeader videoInfoHeader = (VideoInfoHeader)Marshal.PtrToStructure(media.formatPtr, typeof(VideoInfoHeader));
_ResolutionWidth = videoInfoHeader.BmiHeader.Width;
_ResolutionHeight = videoInfoHeader.BmiHeader.Height;
_ResolutionBitsPerPixel = videoInfoHeader.BmiHeader.BitCount;
_ResolutionSizeBytes = videoInfoHeader.BmiHeader.ImageSize;
DsUtils.FreeAMMediaType(media);
media = null;
return(new Resolution(_ResolutionWidth, _ResolutionHeight));
}
}
/// <summary>
/// Parametrizes the provider and itself according to the required config.
/// You can consider it as converting required -> actual config.
/// </summary>
/// <param name="config">The required configuration from the UI</param>
private void configPane_SetupComplete(InteractiveDSConfig config)
{
// Copy the provider
provider = config.Provider;
// Enable stats if necessary
stats.Enabled = config.Statistics;
// Prepare the buffer
BMPbuffer = null;
BMPbuffered = config.Buffered;
videoInfoHeader = provider.StartProvider(config.Preview, this, config.Owner.Handle);
// Setup image storage
imageWidth = videoInfoHeader.BmiHeader.Width;
imageHeight = videoInfoHeader.BmiHeader.Height;
imageStride = imageWidth * 3;
imageOffset = (imageHeight - 1) * imageStride;
savedArray = new byte[imageWidth * imageHeight * 4];
// Adjust the preview
ResizeVideo(config.Owner.Size);
// Create the current configuration object
configuration = new DSConfig(provider, imageWidth, imageHeight, config.Preview, config.Statistics);
// Indicate that the preparations are complete
mediaOnline = true;
if (MediaOnline != null)
{
MediaOnline(configuration);
}
}
public static void GetImageFromMedia(string mediaFile, string outImageFile, double time)
{
int hr;
IMediaDet imd = (IMediaDet) new MediaDet();
try
{
int width = 200;
int height = 200;
// Set the name
hr = imd.put_Filename(mediaFile);
DESError.ThrowExceptionForHR(hr);
// Read from stream to get video size
AMMediaType mediaType = new AMMediaType();
imd.get_StreamMediaType(mediaType);
VideoInfoHeader infoHeader = (VideoInfoHeader)Marshal.PtrToStructure(mediaType.formatPtr, typeof(VideoInfoHeader));
width = infoHeader.BmiHeader.Width;
height = infoHeader.BmiHeader.Height;
// Get the length in seconds
hr = imd.WriteBitmapBits(time, width, height, outImageFile);
DESError.ThrowExceptionForHR(hr);
Marshal.ReleaseComObject(imd);
}
catch
{
Marshal.ReleaseComObject(imd);
}
}
/// <summary> Read and store the properties </summary>
private void SaveSizeInfo(ISampleGrabber sampGrabber)
{
int hr;
// Get the media type from the SampleGrabber
AMMediaType media = new AMMediaType();
hr = sampGrabber.GetConnectedMediaType(media);
DsError.ThrowExceptionForHR(hr);
if ((media.formatType != FormatType.VideoInfo) || (media.formatPtr == IntPtr.Zero))
{
throw new NotSupportedException("Unknown Grabber Media Format");
}
// Grab the size info
VideoInfoHeader videoInfoHeader = (VideoInfoHeader)Marshal.PtrToStructure(media.formatPtr, typeof(VideoInfoHeader));
m_videoWidth = videoInfoHeader.BmiHeader.Width;
m_videoHeight = videoInfoHeader.BmiHeader.Height;
m_stride = m_videoWidth * (videoInfoHeader.BmiHeader.BitCount / 8);
//m_bitmapDataArray = new byte[videoInfoHeader.BmiHeader.ImageSize];
m_handle = Marshal.AllocCoTaskMem(m_stride * m_videoHeight);
DsUtils.FreeAMMediaType(media);
media = null;
}
private void buildGraph()
{
int hr = 0;
IBaseFilter captureFilter;AMMediaType pmt4 = new AMMediaType();
IFilterGraph2 filtergraph = new FilterGraph() as IFilterGraph2;
ICaptureGraphBuilder2 pBuilder = (ICaptureGraphBuilder2)new CaptureGraphBuilder2();
hr = pBuilder.SetFiltergraph(m_graph);
DsError.ThrowExceptionForHR(hr);
filtergraph.AddSourceFilterForMoniker(m_capDev.Mon,
null, m_capDev.Name,
out captureFilter);
m_graph.AddFilter(captureFilter, "CapFilter");
DsError.ThrowExceptionForHR(hr);
IBaseFilter pSampleGrabber = (IBaseFilter)Activator.CreateInstance(typeof(SampleGrabber));
hr = m_graph.AddFilter(pSampleGrabber, "SampleGrabber");
DsError.ThrowExceptionForHR(hr);
hr = ((ISampleGrabber)pSampleGrabber).SetCallback(new StillGrabberCallBack(), 0);
AMMediaType media = new AMMediaType();
media.majorType = MediaType.Video;
media.subType = MediaSubType.RGB24;
media.formatType = FormatType.VideoInfo;
VideoInfoHeader format = new VideoInfoHeader();
format.SrcRect = new DsRect();
format.TargetRect = new DsRect();
format.BmiHeader = new BitmapInfoHeader()
format.BmiHeader.Size =
}
/// <summary>
/// Gets the type of the media.
/// </summary>
/// <param name="pMediaType">Type of the p media.</param>
/// <returns></returns>
public override int GetMediaType(ref AMMediaType pMediaType)
{
pMediaType.majorType = MediaType.Video;
pMediaType.subType = MediaSubType.RGB32;
pMediaType.formatType = FormatType.VideoInfo;
VideoInfoHeader vih = new VideoInfoHeader();
vih.AvgTimePerFrame = m_nAvgTimePerFrame;
vih.BmiHeader = new BitmapInfoHeader();
vih.BmiHeader.Size = Marshal.SizeOf(typeof(BitmapInfoHeader));
vih.BmiHeader.Compression = 0;
vih.BmiHeader.BitCount = 32;
vih.BmiHeader.Width = m_nWidth;
vih.BmiHeader.Height = m_nHeight;
vih.BmiHeader.Planes = 1;
vih.BmiHeader.ImageSize = vih.BmiHeader.Width * vih.BmiHeader.Height * vih.BmiHeader.BitCount / 8;
vih.SrcRect = new DsRect();
vih.TargetRect = new DsRect();
AMMediaType.SetFormat(ref pMediaType, ref vih);
pMediaType.fixedSizeSamples = true;
pMediaType.sampleSize = vih.BmiHeader.ImageSize;
return(NOERROR);
}
/// <summary>
/// Saves the video.
/// </summary>
/// <param name="fileName">Name of the file.</param>
/// <param name="profileFileName">Name of the profile file.</param>
/// <param name="framesPerSecond">Frames per second.</param>
/// <param name="bitmaps">Bitmaps.</param>
public WmvEncoder(string profileFileName, ulong framesPerSecond)
{
try
{
WMEncoder encoder = new WMEncoder();
IWMEncProfile2 profile = WMEncProfile.LoadEncodingProfile(encoder, profileFileName);
WMEncProfile.ReleaseEncoder(ref encoder);
writer = new WmvWriter();
writer.SetProfile((IWMProfile)profile.SaveToIWMProfile());
viHeader = new VideoInfoHeader();
bool bret = writer.FindVideoInputFormat(0, MediaSubTypes.WMMEDIASUBTYPE_RGB24, ref viHeader, false);
if (!bret)
{
throw new Exception("FindVideoInputFormat error");
}
;
frame = new Bitmap((int)viHeader.bmiHeader.biWidth, (int)viHeader.bmiHeader.biHeight, PixelFormat.Format24bppRgb);
fps = framesPerSecond;
}
catch (Exception)
{
// error handle
throw;
}
}
// Save the size parameters for use in SnapShot
private void SaveSizeInfo(ISampleGrabber sampGrabber)
{
int hr;
// Get the media type from the SampleGrabber
AMMediaType media = new AMMediaType();
hr = sampGrabber.GetConnectedMediaType(media);
DsError.ThrowExceptionForHR(hr);
try
{
if ((media.formatType != FormatType.VideoInfo) || (media.formatPtr == IntPtr.Zero))
{
throw new NotSupportedException("Unknown Grabber Media Format");
}
// Get the struct
VideoInfoHeader videoInfoHeader = new VideoInfoHeader();
Marshal.PtrToStructure(media.formatPtr, videoInfoHeader);
// Grab the size info
m_videoWidth = videoInfoHeader.BmiHeader.Width;
m_videoHeight = videoInfoHeader.BmiHeader.Height;
m_stride = videoInfoHeader.BmiHeader.ImageSize / m_videoHeight;
m_ImageSize = videoInfoHeader.BmiHeader.ImageSize;
}
finally
{
DsUtils.FreeAMMediaType(media);
media = null;
}
}
private static void UpdateVideoPart(IMediaDet mediaDet, MediaProperty mediaProperty)
{
int hr = 0;
AMMediaType mediaType = new AMMediaType();
hr = mediaDet.get_StreamMediaType(mediaType);
DsError.ThrowExceptionForHR(hr);
mediaProperty.videoSubType = mediaType.subType;
double streamLength;
hr = mediaDet.get_StreamLength(out streamLength);
DsError.ThrowExceptionForHR(hr);
mediaProperty.videoLength = TimeSpan.FromSeconds(streamLength);
if (mediaType.formatType == FormatType.VideoInfo)
{
VideoInfoHeader videoHeader = (VideoInfoHeader)Marshal.PtrToStructure(mediaType.formatPtr, typeof(VideoInfoHeader));
mediaProperty.resolution = new Size(videoHeader.BmiHeader.Width, videoHeader.BmiHeader.Height);
mediaProperty.bitsPerPixel = videoHeader.BmiHeader.BitCount;
mediaProperty.fourCC = FourCCToString(videoHeader.BmiHeader.Compression);
}
}
private void SetPinVideoImageSize(string pinName)
{
int hr;
IPin pin = DsFindPin.ByDirection(_videoEncoder, PinDirection.Output, 0);
if (pin != null)
{
AppLogger.Message("VideoCaptureDevice: found output pin");
}
// get video stream interfaces
AppLogger.Message("VideoCaptureDevice:get Video stream control interface (IAMStreamConfig)");
IAMStreamConfig streamConfig = (IAMStreamConfig)pin;
AMMediaType media;
hr = streamConfig.GetFormat(out media);
DsError.ThrowExceptionForHR(hr);
VideoInfoHeader v = new VideoInfoHeader();
v.BmiHeader = new BitmapInfoHeader();
v.BmiHeader.Width = 320;
v.BmiHeader.Height = 240;
media.formatPtr = Marshal.AllocCoTaskMem(1024);
Marshal.StructureToPtr(v, media.formatPtr, true);
hr = streamConfig.SetFormat(media);
DsError.ThrowExceptionForHR(hr);
DsUtils.FreeAMMediaType(media);
}
/// <summary>
/// Retrieves the value of one member of the IAMStreamConfig format block.
/// Helper function for several properties that expose
/// video/audio settings from IAMStreamConfig.GetFormat().
/// IAMStreamConfig.GetFormat() returns a AMMediaType struct.
/// AMMediaType.formatPtr points to a format block structure.
/// This format block structure may be one of several
/// types, the type being determined by AMMediaType.formatType.
/// </summary>
protected object getStreamConfigSetting( IAMStreamConfig streamConfig, string fieldName)
{
if ( streamConfig == null )
throw new NotSupportedException();
assertStopped();
derenderGraph();
object returnValue = null;
#if DSHOWNET
IntPtr pmt = IntPtr.Zero;
#endif
AMMediaType mediaType = new AMMediaType();
try
{
// Get the current format info
#if DSHOWNET
int hr = streamConfig.GetFormat(out pmt);
#else
int hr = streamConfig.GetFormat(out mediaType);
#endif
if ( hr != 0 )
Marshal.ThrowExceptionForHR( hr );
#if DSHOWNET
Marshal.PtrToStructure( pmt, mediaType );
#endif
// The formatPtr member points to different structures
// dependingon the formatType
object formatStruct;
if ( mediaType.formatType == FormatType.WaveEx )
formatStruct = new WaveFormatEx();
else if ( mediaType.formatType == FormatType.VideoInfo )
formatStruct = new VideoInfoHeader();
else if ( mediaType.formatType == FormatType.VideoInfo2 )
formatStruct = new VideoInfoHeader2();
else
throw new NotSupportedException( "This device does not support a recognized format block." );
// Retrieve the nested structure
Marshal.PtrToStructure( mediaType.formatPtr, formatStruct );
// Find the required field
Type structType = formatStruct.GetType();
FieldInfo fieldInfo = structType.GetField( fieldName );
if ( fieldInfo == null )
throw new NotSupportedException( "Unable to find the member '" + fieldName + "' in the format block." );
// Extract the field's current value
returnValue = fieldInfo.GetValue( formatStruct );
}
finally
{
DsUtils.FreeAMMediaType( mediaType );
#if DSHOWNET
Marshal.FreeCoTaskMem( pmt );
#endif
}
renderGraph();
startPreviewIfNeeded();
return( returnValue );
}
private object GetField(AMMediaType mediaType, String fieldName)
{
object formatStruct;
if ( mediaType.formatType == FormatType.WaveEx )
formatStruct = new WaveFormatEx();
else if ( mediaType.formatType == FormatType.VideoInfo )
formatStruct = new VideoInfoHeader();
else if ( mediaType.formatType == FormatType.VideoInfo2 )
formatStruct = new VideoInfoHeader2();
else
throw new NotSupportedException( "This device does not support a recognized format block." );
// Retrieve the nested structure
Marshal.PtrToStructure( mediaType.formatPtr, formatStruct );
// Find the required field
Type structType = formatStruct.GetType();
FieldInfo fieldInfo = structType.GetField(fieldName);
if(fieldInfo != null)
{
return fieldInfo.GetValue(formatStruct);
}
return null;
}
/// <summary> Read and store the properties </summary>
private void SaveSizeInfo(ISampleGrabber sampGrabber)
{
int hr;
// Get the media type from the SampleGrabber
AMMediaType media = new AMMediaType();
hr = sampGrabber.GetConnectedMediaType(media);
DsError.ThrowExceptionForHR(hr);
if ((media.formatType != FormatType.VideoInfo) || (media.formatPtr == IntPtr.Zero))
{
throw new NotSupportedException("Unknown Grabber Media Format");
}
// Grab the size info
videoInfoHeader = (VideoInfoHeader)Marshal.PtrToStructure(media.formatPtr, typeof(VideoInfoHeader));
m_videoWidth = videoInfoHeader.BmiHeader.Width;
m_videoHeight = videoInfoHeader.BmiHeader.Height;
m_stride = m_videoWidth * (videoInfoHeader.BmiHeader.BitCount / 8);
DsUtils.FreeAMMediaType(media);
media = null;
}
// Set the Framerate, and video size
private void SetConfigParms(ICaptureGraphBuilder2 capGraph, IBaseFilter capFilter, int iFrameRate, int iWidth, int iHeight)
{
int hr;
object o;
AMMediaType media;
// Find the stream config interface
hr = capGraph.FindInterface(
PinCategory.Capture, MediaType.Video, capFilter, typeof(IAMStreamConfig).GUID, out o);
IAMStreamConfig videoStreamConfig = o as IAMStreamConfig;
if (videoStreamConfig == null)
{
throw new Exception("Failed to get IAMStreamConfig");
}
// Get the existing format block
hr = videoStreamConfig.GetFormat(out media);
DsError.ThrowExceptionForHR(hr);
// copy out the videoinfoheader
VideoInfoHeader v = new VideoInfoHeader();
Marshal.PtrToStructure(media.formatPtr, v);
// if overriding the framerate, set the frame rate
if (iFrameRate > 0)
{
v.AvgTimePerFrame = 10000000 / iFrameRate;
}
// if overriding the width, set the width
if (iWidth > 0)
{
v.BmiHeader.Width = iWidth;
}
// if overriding the Height, set the Height
if (iHeight > 0)
{
v.BmiHeader.Height = iHeight;
}
// Copy the media structure back
Marshal.StructureToPtr(v, media.formatPtr, false);
// Set the new format
hr = videoStreamConfig.SetFormat(media);
DsError.ThrowExceptionForHR(hr);
DsUtils.FreeAMMediaType(media);
media = null;
}
protected object setStreamConfigSetting(IAMStreamConfig streamConfig, string fieldName, object newValue)
{
if (streamConfig == null)
throw new NotSupportedException();
object returnValue = null;
IntPtr pmt = IntPtr.Zero;
AMMediaType mediaType = new AMMediaType();
try
{
// Get the current format info
int hr = streamConfig.GetFormat(out pmt);
if (hr != 0)
Marshal.ThrowExceptionForHR(hr);
Marshal.PtrToStructure(pmt, mediaType);
// The formatPtr member points to different structures
// dependingon the formatType
object formatStruct;
if (mediaType.formatType == FormatType.WaveEx)
formatStruct = new WaveFormatEx();
else if (mediaType.formatType == FormatType.VideoInfo)
formatStruct = new VideoInfoHeader();
else if (mediaType.formatType == FormatType.VideoInfo2)
formatStruct = new VideoInfoHeader2();
else
throw new NotSupportedException("This device does not support a recognized format block.");
// Retrieve the nested structure
Marshal.PtrToStructure(mediaType.formatPtr, formatStruct);
// Find the required field
Type structType = formatStruct.GetType();
FieldInfo fieldInfo = structType.GetField(fieldName);
if (fieldInfo == null)
throw new NotSupportedException("Unable to find the member '" + fieldName + "' in the format block.");
// Update the value of the field
fieldInfo.SetValue(formatStruct, newValue);
// PtrToStructure copies the data so we need to copy it back
Marshal.StructureToPtr(formatStruct, mediaType.formatPtr, false);
// Save the changes
hr = streamConfig.SetFormat(mediaType);
if (hr != 0)
Marshal.ThrowExceptionForHR(hr);
}
finally
{
//DsUtils.FreeAMMediaType(mediaType);
Marshal.FreeCoTaskMem(pmt);
}
return (returnValue);
}
/// <summary>
/// Set the value of one member of the IAMStreamConfig format block.
/// Helper function for several properties that expose
/// video/audio settings from IAMStreamConfig.GetFormat().
/// IAMStreamConfig.GetFormat() returns a AMMediaType struct.
/// AMMediaType.formatPtr points to a format block structure.
/// This format block structure may be one of several
/// types, the type being determined by AMMediaType.formatType.
/// </summary>
protected object setStreamConfigSetting( IAMStreamConfig streamConfig, string fieldName, object newValue)
{
if ( streamConfig == null )
throw new NotSupportedException();
assertStopped();
derenderGraph();
object returnValue = null;
#if DSHOWNET
IntPtr pmt = IntPtr.Zero;
#endif
AMMediaType mediaType = new AMMediaType();
try
{
// Get the current format info
#if DSHOWNET
int hr = streamConfig.GetFormat(out pmt);
#else
int hr = streamConfig.GetFormat(out mediaType);
#endif
if ( hr != 0 )
Marshal.ThrowExceptionForHR( hr );
#if DSHOWNET
Marshal.PtrToStructure(pmt, mediaType);
#endif
// The formatPtr member points to different structures
// dependingon the formatType
object formatStruct;
if ( mediaType.formatType == FormatType.WaveEx )
formatStruct = new WaveFormatEx();
else if ( mediaType.formatType == FormatType.VideoInfo )
formatStruct = new VideoInfoHeader();
else if ( mediaType.formatType == FormatType.VideoInfo2 )
formatStruct = new VideoInfoHeader2();
else
throw new NotSupportedException( "This device does not support a recognized format block." );
// Retrieve the nested structure
Marshal.PtrToStructure( mediaType.formatPtr, formatStruct );
// Find the required field
Type structType = formatStruct.GetType();
FieldInfo fieldInfo = structType.GetField( fieldName );
if ( fieldInfo == null )
throw new NotSupportedException( "Unable to find the member '" + fieldName + "' in the format block." );
// Update the value of the field
fieldInfo.SetValue( formatStruct, newValue );
// Update fields that may depend on specific values of other attributes
if (mediaType.formatType == FormatType.WaveEx)
{
WaveFormatEx waveFmt = formatStruct as WaveFormatEx;
waveFmt.nBlockAlign = (short)(waveFmt.nChannels * waveFmt.wBitsPerSample / 8);
waveFmt.nAvgBytesPerSec = waveFmt.nBlockAlign * waveFmt.nSamplesPerSec;
}
// PtrToStructure copies the data so we need to copy it back
Marshal.StructureToPtr( formatStruct, mediaType.formatPtr, false );
// Save the changes
hr = streamConfig.SetFormat( mediaType );
if ( hr != 0 )
Marshal.ThrowExceptionForHR( hr );
}
finally
{
DsUtils.FreeAMMediaType( mediaType );
#if DSHOWNET
Marshal.FreeCoTaskMem(pmt);
#endif
}
renderGraph();
startPreviewIfNeeded();
return( returnValue );
}
