private int getPinMediaType(IPin pPin, Guid majorType, Guid minorType, Guid formatType, ref AMMediaType mediaType)
{
if (pPin == null)
{
throw new Exception("No pin");
}
int hr;
IEnumMediaTypes pEnum = null;
hr = pPin.EnumMediaTypes(out pEnum);
DsError.ThrowExceptionForHR(hr);
bool found = false;
IntPtr fetched = IntPtr.Zero;
AMMediaType[] pMT = new AMMediaType[1];
hr = pEnum.Next(1, pMT, fetched);
while (hr == 0)
{
if ((majorType.Equals(Guid.Empty)) || (majorType.Equals(pMT[0].majorType)))
{
if ((minorType.Equals(Guid.Empty)) || (minorType.Equals(pMT[0].subType)))
{
if ((formatType.Equals(Guid.Empty)) || (formatType.Equals(pMT[0].formatType)))
// Match
{
found = true;
mediaType = pMT[0];
break;
}
}
}
DsUtils.FreeAMMediaType(pMT[0]);
hr = pEnum.Next(1, pMT, fetched);
}
// End
Marshal.ReleaseComObject(pEnum);
if (found)
{
return(0);
}
else
{
return(-1);
}
}
/// <summary>
/// Gets the pin media types.
/// </summary>
/// <returns>Returns collection of supported media types.</returns>
public IEnumerable <AMMediaType> GetMediaTypes()
{
IEnumMediaTypes mediaTypes = null;
try
{
var hr = Object.EnumMediaTypes(out mediaTypes);
DsError.ThrowExceptionForHR(hr);
var currentMediaType = new AMMediaType[1];
while (mediaTypes.Next(1, currentMediaType, out _) == 0)
{
try
{
yield return(currentMediaType[0]);
}
finally
{
DsUtils.FreeAMMediaType(currentMediaType[0]);
}
}
}
finally
{
if (mediaTypes != null)
{
DsUtils.ReleaseComObject(mediaTypes);
}
}
}
private static bool checkMediaTypes(IPin pin, Guid mediaType, Guid mediaSubType)
{
int reply = 0;
IEnumMediaTypes enumMediaTypes = null;
AMMediaType[] mediaTypes = new AMMediaType[1];
reply = pin.EnumMediaTypes(out enumMediaTypes);
DsError.ThrowExceptionForHR(reply);
while (enumMediaTypes.Next(mediaTypes.Length, mediaTypes, IntPtr.Zero) == 0)
{
foreach (AMMediaType currentMediaType in mediaTypes)
{
if (currentMediaType != null)
{
if (currentMediaType.majorType == mediaType &&
currentMediaType.subType == mediaSubType)
{
Marshal.ReleaseComObject(enumMediaTypes);
return(true);
}
}
}
}
Marshal.ReleaseComObject(enumMediaTypes);
return(false);
}
public static List <AMMediaType> GetMediaTypes(IPin pin)
{
List <AMMediaType> mediaTypes = new List <AMMediaType>();
IEnumMediaTypes mediaTypesEnum = null;
AMMediaType[] mta = new AMMediaType[1];
if (pin.EnumMediaTypes(out mediaTypesEnum) == 0)
{
int n;
try
{
while (mediaTypesEnum.Next(1, mta, out n) == 0)
{
if (n == 1)
{
mediaTypes.Add(mta[0]);
}
}
}
finally
{
Marshal.ReleaseComObject(mediaTypesEnum);
}
}
return(mediaTypes);
}
/// <summary>
/// 初始化该引脚的媒体类型
/// </summary>
public void InitAMMediaType()
{
this.MediaTypes = new List <AMMediaType>();
var hr = 0;
IEnumMediaTypes enumMediaTypes = null;
hr = Pin.EnumMediaTypes(out enumMediaTypes);
if (hr != 0)
{
if (hr != DsResults.E_NotConnected)
{
DsError.ThrowExceptionForHR(hr);
}
return;
}
short count = 128;
IntPtr pCount = Marshal.AllocHGlobal(sizeof(short));
Marshal.WriteInt16(pCount, count);
AMMediaType[] mediaTypeArr = new AMMediaType[1];
while (enumMediaTypes.Next(1, mediaTypeArr, pCount) == 0)
{
if (mediaTypeArr[0] != null)
{
MediaTypes.Add(mediaTypeArr[0]);
}
}
Marshal.ReleaseComObject(enumMediaTypes);
}
public void TestNext()
{
int hr;
IntPtr ip = Marshal.AllocCoTaskMem(4);
AMMediaType[] ppMediaTypes = new AMMediaType[10];
IEnumMediaTypes enumMediaTypes = GetEnumMediaTypes();
//IntPtr ip2 = Marshal.AllocCoTaskMem(ppMediaTypes.Length * IntPtr.Size);
for (int x = 0; x < 3; x++)
{
hr = enumMediaTypes.Next(ppMediaTypes.Length, ppMediaTypes, ip);
//for (int y = 0; y < Marshal.ReadInt32(ip); y++)
//{
// ppMediaTypes[y] = new AMMediaType();
// IntPtr ip3 = Marshal.ReadIntPtr(ip2, y * IntPtr.Size); // new IntPtr(ip2.ToInt64() + (y * IntPtr.Size));
// Marshal.PtrToStructure(ip3, ppMediaTypes[y]);
//}
DsError.ThrowExceptionForHR(hr);
}
Marshal.FreeCoTaskMem(ip);
}
public void TestSkip()
{
int hr;
AMMediaType[] ppMediaTypes = new AMMediaType[1];
IEnumMediaTypes enumMediaTypes = GetEnumMediaTypes();
hr = enumMediaTypes.Next(1, ppMediaTypes, IntPtr.Zero);
DsError.ThrowExceptionForHR(hr);
hr = enumMediaTypes.Skip(1);
DsError.ThrowExceptionForHR(hr);
hr = enumMediaTypes.Next(1, ppMediaTypes, IntPtr.Zero);
DsError.ThrowExceptionForHR(hr);
}
/// <summary>
/// Finds a pin that exists in a graph.
/// </summary>
/// <param name="majorOrMinorMediaType">The GUID of the major or minor type of the media</param>
/// <param name="pinDirection">The direction of the pin - in/out</param>
/// <param name="graph">The graph to search in</param>
/// <returns>Returns null if the pin was not found, or if a pin is found, returns the first instance of it</returns>
protected static IPin FindPinInGraphByMediaType(Guid majorOrMinorMediaType, PinDirection pinDirection, IGraphBuilder graph)
{
IEnumFilters enumFilters;
/* Get the filter enum */
graph.EnumFilters(out enumFilters);
/* Init our vars */
var filters = new IBaseFilter[1];
var fetched = IntPtr.Zero;
IPin pin = null;
IEnumMediaTypes mediaTypesEnum = null;
/* Loop over each filter in the graph */
while (enumFilters.Next(1, filters, fetched) == 0)
{
var filter = filters[0];
int i = 0;
/* Loop over each pin in the filter */
while ((pin = DsFindPin.ByDirection(filter, pinDirection, i)) != null)
{
/* Get the pin enumerator */
pin.EnumMediaTypes(out mediaTypesEnum);
var mediaTypesFetched = IntPtr.Zero;
var mediaTypes = new AMMediaType[1];
/* Enumerate the media types on the pin */
while (mediaTypesEnum.Next(1, mediaTypes, mediaTypesFetched) == 0)
{
/* See if the major or subtype meets our requirements */
if (mediaTypes[0].majorType.Equals(majorOrMinorMediaType) || mediaTypes[0].subType.Equals(majorOrMinorMediaType))
{
/* We found a match */
goto done;
}
}
i++;
}
}
done:
if (mediaTypesEnum != null)
{
mediaTypesEnum.Reset();
Marshal.ReleaseComObject(mediaTypesEnum);
}
enumFilters.Reset();
Marshal.ReleaseComObject(enumFilters);
return(pin);
}
public void TestReset()
{
int hr;
IntPtr ip = Marshal.AllocCoTaskMem(4);
AMMediaType[] ppMediaTypes = new AMMediaType[1];
IEnumMediaTypes enumMediaTypes = GetEnumMediaTypes();
hr = enumMediaTypes.Next(ppMediaTypes.Length, ppMediaTypes, ip);
DsError.ThrowExceptionForHR(hr);
Debug.Assert(Marshal.ReadInt32(ip) == 1, "Next");
hr = enumMediaTypes.Reset();
DsError.ThrowExceptionForHR(hr);
hr = enumMediaTypes.Next(1, ppMediaTypes, IntPtr.Zero);
DsError.ThrowExceptionForHR(hr);
Marshal.FreeCoTaskMem(ip);
}
public static string DumpPinInfo(IPin pin)
{
StringBuilder sb = new StringBuilder();
int hr;
sb.AppendLine(">>>>> Pin Info");
{
PinInfo pi;
hr = pin.QueryPinInfo(out pi);
if (0 == hr)
{
sb.AppendLine(string.Format("PinInfo name: {0} direction: {1}", pi.name, pi.dir.ToString()));
}
else
{
sb.AppendLine("PinInfo: " + GetErrorText(hr));
}
}
// Pins info
{
IEnumMediaTypes enumMediaTypes = null;
AMMediaType[] mediaTypes = new AMMediaType[1] {
null
};
try
{
hr = pin.EnumMediaTypes(out enumMediaTypes);
DsError.ThrowExceptionForHR(hr);
while (enumMediaTypes.Next(1, mediaTypes, IntPtr.Zero) == 0)
{
sb.AppendLine(DumpAMMediaTypeInfo(mediaTypes[0]));
DsUtils.FreeAMMediaType(mediaTypes[0]);
mediaTypes[0] = null;
}
}
finally
{
Marshal.ReleaseComObject(enumMediaTypes);
}
}
sb.AppendLine("<<<<< Pin Info");
return(sb.ToString());
}
private void logMediaTypes(IPin pin)
{
IEnumMediaTypes mediaTypes = null;
AMMediaType[] mediaType = new AMMediaType[1];
AMMediaType connectedMediaType = new AMMediaType();
reply = pin.ConnectionMediaType(connectedMediaType);
reply = pin.EnumMediaTypes(out mediaTypes);
if (reply != 0)
{
LogMessage("Media types cannot be determined at this time (not connected yet?)");
return;
}
while (mediaTypes.Next(mediaType.Length, mediaType, IntPtr.Zero) == 0)
{
foreach (AMMediaType currentMediaType in mediaType)
{
PinInfo pinInfo;
reply = pin.QueryPinInfo(out pinInfo);
DsError.ThrowExceptionForHR(reply);
string majorType = TranslateMediaMajorType(currentMediaType.majorType);
string subType = TranslateMediaSubType(currentMediaType.subType);
string connectedComment;
if (currentMediaType.majorType == connectedMediaType.majorType && currentMediaType.subType == connectedMediaType.subType)
{
connectedComment = "** Connected **";
}
else
{
connectedComment = string.Empty;
}
LogMessage("Media type: " +
majorType + " ; " +
subType + " " +
currentMediaType.fixedSizeSamples + " " +
currentMediaType.sampleSize + " " +
connectedComment);
}
}
}
private static IPin FindPinByMediaType(IBaseFilter filter, PinDirection direction, Guid mType, Guid sType)
{
IPin pRet = null;
IPin tPin = null;
int hr;
int index = 0;
tPin = DsFindPin.ByDirection(filter, direction, index);
while (tPin != null)
{
IEnumMediaTypes emtDvr = null;
AMMediaType[] amtDvr = new AMMediaType[1];
try
{
tPin.EnumMediaTypes(out emtDvr);
hr = emtDvr.Next(1, amtDvr, IntPtr.Zero);
DsError.ThrowExceptionForHR(hr);
if (amtDvr[0] != null && amtDvr[0].majorType == mType && (amtDvr[0].subType == sType || sType == MediaSubType.Null))
{
pRet = tPin;
break;
}
}
finally
{
DsUtils.FreeAMMediaType(amtDvr[0]);
if (emtDvr != null)
{
Marshal.ReleaseComObject(emtDvr);
}
}
if (tPin != null)
{
Marshal.ReleaseComObject(tPin);
}
tPin = null;
index++;
tPin = DsFindPin.ByDirection(filter, direction, index);
}
return(pRet);
}
/// <summary>
/// Get the IPinIPType for the pin's prefered or connected media type
/// </summary>
/// <param name="pin"></param>
/// <returns></returns>
private Type GetPinMajorMediaType(IPin pin)
{
Type t = null;
AMMediaType contype = new AMMediaType();
int hr = pin.ConnectionMediaType(contype);
if (hr == 0)
{
t = PinDataTypes.GetMajorPinType(contype.majorType);
DsUtils.FreeAMMediaType(contype);
return(t);
}
else
{
// wasn't connected, enumerate the prefered media types and get the major type of the first one
IEnumMediaTypes penum = null;
hr = pin.EnumMediaTypes(out penum);
if (hr == 0 && penum != null)
{
AMMediaType[] mtypes = new AMMediaType[1];
IntPtr fetched = Marshal.AllocCoTaskMem(4);
try
{
if (penum.Next(1, mtypes, fetched) == 0)
{
t = PinDataTypes.GetMajorPinType(mtypes[0].majorType);
DsUtils.FreeAMMediaType(mtypes[0]);
Marshal.ReleaseComObject(penum);
return(t);
}
}
finally
{
Marshal.FreeCoTaskMem(fetched);
}
}
}
// couldn't get the pin's major media type
return(typeof(PinDataTypes.Unknown));
}
public static void SplitterForFile(string file)
{
int hr;
IBaseFilter reader = (IBaseFilter) new AsyncReader();
hr = (reader as IFileSourceFilter).Load(file, null);
IPin oPin = DsFindPin.ByDirection(reader, PinDirection.Output, 0);
IEnumMediaTypes eMedia = null;
AMMediaType[] mediaTypes = new AMMediaType[1];
hr = oPin.EnumMediaTypes(out eMedia);
while (eMedia.Next(mediaTypes.Length, mediaTypes, IntPtr.Zero) == 0)
{
GetDevicesWithThisInPin(mediaTypes[0].majorType, mediaTypes[0].subType);
}
}
/// <summary>
/// 指定したピンが指定したMediaTypeをサポートするか？
/// </summary>
/// <param name="pin">ピン</param>
/// <param name="major">majorType</param>
/// <param name="sub">subType or 検証不要な場合 Guid.Empty</param>
/// <returns>サポートしてる場合true</returns>
public static bool IsPinSupportsMediaType(IPin pin, Guid major, Guid sub)
{
bool found = false;
IEnumMediaTypes enumerator = null;
try
{
pin.EnumMediaTypes(out enumerator);
IntPtr pMedia = IntPtr.Zero;
AMMediaType media = new AMMediaType();
found = false;
enumerator.Reset();
while (!found && enumerator.Next(1, out pMedia, IntPtr.Zero) == S_OK)
{
if (pMedia == IntPtr.Zero)
{
continue;
}
Marshal.PtrToStructure(pMedia, media);
if (media.majorType == major && (sub == Guid.Empty || media.subType != sub))
{
found = true;
}
Util.FreeMediaType(media);
Marshal.FreeCoTaskMem(pMedia);
}
}
finally
{
if (enumerator != null)
{
Marshal.ReleaseComObject(enumerator);
}
enumerator = null;
}
return(found);
}
public void RefreshProperties()
{
this.Clear();
int hr = 0;
// if the pin is connected, get it's ConnectionMediaType
bool added = false;
AMMediaType contype = new AMMediaType();
try
{
hr = _pin.ConnectionMediaType(contype);
if (hr == 0)
{
AppendText(ConnectionMediaTypeString(contype));
DsUtils.FreeAMMediaType(contype);
return;
}
}
catch (Exception ex)
{
#if DEBUG
MessageBox.Show(ex.Message, "Error getting media connection type");
#endif
}
// the pin's not connected, so get each of the prefered media types for the pin
AppendText("Prefered Media Types:\r\n");
IEnumMediaTypes penum = null;
hr = _pin.EnumMediaTypes(out penum);
if (hr == 0 && penum != null)
{
AMMediaType[] mtypes = new AMMediaType[1];
IntPtr fetched = Marshal.AllocCoTaskMem(4);
try
{
while (penum.Next(1, mtypes, fetched) == 0)
{
AppendText(ConnectionMediaTypeString(mtypes[0]));
DsUtils.FreeAMMediaType(mtypes[0]);
added = true;
}
}
catch (Exception ex)
{
#if DEBUG
MessageBox.Show(ex.Message, "Error getting pin prefered type");
#endif
}
finally
{
Marshal.FreeCoTaskMem(fetched);
}
// if we added no prefered media types to the textbox, set it to "None"
if (added == false)
{
AppendText("None\r\n");
}
Marshal.ReleaseComObject(penum);
}
}
public static IPin FindPinForMajorType(IBaseFilter filter, PinDirection direction, Guid majorType)
{
if (filter == null)
{
throw new ArgumentNullException("filter");
}
int hr = 0;
IEnumPins pinsEnum = null;
try
{
hr = filter.EnumPins(out pinsEnum);
DsError.ThrowExceptionForHR(hr);
var pins = new IPin[1];
int numberFetched = 1;
while (numberFetched > 0)
{
IntPtr pcFetched = Marshal.AllocCoTaskMem(4);
try
{
hr = pinsEnum.Next(1, pins, pcFetched);
DsError.ThrowExceptionForHR(hr);
numberFetched = Marshal.ReadInt32(pcFetched);
}
finally
{
Marshal.FreeCoTaskMem(pcFetched);
}
if (numberFetched > 0)
{
PinDirection currentPinDirection;
hr = pins[0].QueryDirection(out currentPinDirection);
DsError.ThrowExceptionForHR(hr);
if (currentPinDirection != direction)
{
continue;
}
IEnumMediaTypes mediaTypesEnum = null;
try
{
var mediaTypes = new AMMediaType[1];
pins[0].EnumMediaTypes(out mediaTypesEnum);
int numberFetched2 = 1;
while (numberFetched2 > 0)
{
IntPtr fetched2 = IntPtr.Zero;
try
{
hr = mediaTypesEnum.Next(1, mediaTypes, fetched2);
DsError.ThrowExceptionForHR(hr);
numberFetched2 = Marshal.ReadInt32(fetched2);
}
finally
{
Marshal.FreeCoTaskMem(fetched2);
}
if (numberFetched2 > 0)
{
if (mediaTypes[0].majorType == majorType)
{
// success, return the pin
return(pins[0]);
}
}
Marshal.ReleaseComObject(pins[0]);
}
}
finally
{
if (mediaTypesEnum != null)
{
Marshal.ReleaseComObject(mediaTypesEnum);
}
}
}
}
}
finally
{
if (pinsEnum != null)
{
Marshal.ReleaseComObject(pinsEnum);
}
}
return(null);
}
public static VideoInfoHeader2 GetSBEFrameSize(string pathToFile)
{
int hr = 0;
IGraphBuilder graph = null;
IBaseFilter capFilter = null;
IBaseFilter nRender = null;
try
{
graph = (IGraphBuilder) new FilterGraph();
hr = graph.AddSourceFilter(pathToFile, "Source", out capFilter);
DsError.ThrowExceptionForHR(hr);
#if DEBUG
using (DsROTEntry rot = new DsROTEntry(graph))
{
#endif
IPin vPin = null;
IBaseFilter dec = null;
IPin sgIn = null;
IBaseFilter mpegDec = null;
try
{
dec = (IBaseFilter) new DTFilter();
hr = graph.AddFilter(dec, "Decrypt");
DsError.ThrowExceptionForHR(hr);
nRender = (IBaseFilter) new NullRenderer();
hr = graph.AddFilter((IBaseFilter)nRender, "Video Null Renderer");
DsError.ThrowExceptionForHR(hr);
IBaseFilter dec1 = FilterDefinition.AddToFilterGraph(FatAttitude.WTVTranscoder.FilterDefinitions.Decrypt.DTFilterPBDA, ref graph, "Decrypt1");
if (dec1 != null)
{
Marshal.ReleaseComObject(dec1);
}
dec1 = null;
mpegDec = FilterDefinition.AddToFilterGraph(FatAttitude.WTVTranscoder.FilterDefinitions.Video.VideoDecoderMpeg, ref graph, "MS MPEG Decoder");
sgIn = DsFindPin.ByDirection(mpegDec, PinDirection.Input, 0);
IEnumPins ppEnum;
IPin[] pPins = new IPin[1];
hr = capFilter.EnumPins(out ppEnum);
DsError.ThrowExceptionForHR(hr);
try
{
while (ppEnum.Next(1, pPins, IntPtr.Zero) == 0)
{
IEnumMediaTypes emtDvr = null;
AMMediaType[] amtDvr = new AMMediaType[1];
try
{
pPins[0].EnumMediaTypes(out emtDvr);
hr = emtDvr.Next(1, amtDvr, IntPtr.Zero);
DsError.ThrowExceptionForHR(hr);
if (amtDvr[0].majorType == MediaType.Video)
{
if (graph.Connect(pPins[0], sgIn) >= 0)
{
vPin = pPins[0];
break;
}
}
if (pPins[0] != null)
{
Marshal.ReleaseComObject(pPins[0]);
}
}
finally
{
if (emtDvr != null)
{
Marshal.ReleaseComObject(emtDvr);
}
DsUtils.FreeAMMediaType(amtDvr[0]);
}
}
}
finally
{
if (ppEnum != null)
{
Marshal.ReleaseComObject(ppEnum);
}
}
FilterGraphTools.RenderPin(graph, mpegDec, "Video Output 1");
}
finally
{
if (vPin != null)
{
Marshal.ReleaseComObject(vPin);
}
if (dec != null)
{
Marshal.ReleaseComObject(dec);
}
if (sgIn != null)
{
Marshal.ReleaseComObject(sgIn);
}
if (mpegDec != null)
{
Marshal.ReleaseComObject(mpegDec);
}
}
EventCode ec;
IMediaControl mControl = graph as IMediaControl;
IMediaEvent mEvent = graph as IMediaEvent;
hr = mControl.Pause();
DsError.ThrowExceptionForHR(hr);
hr = mControl.Run();
DsError.ThrowExceptionForHR(hr);
hr = mEvent.WaitForCompletion(1000, out ec);
//DsError.ThrowExceptionForHR(hr);
hr = mControl.Pause();
DsError.ThrowExceptionForHR(hr);
hr = mControl.Stop();
DsError.ThrowExceptionForHR(hr);
IPin mpgOut = null;
sgIn = null;
AMMediaType mt = new AMMediaType();
try
{
sgIn = DsFindPin.ByDirection(nRender, PinDirection.Input, 0);
if (sgIn != null)
{
hr = sgIn.ConnectedTo(out mpgOut);
DsError.ThrowExceptionForHR(hr);
hr = graph.RemoveFilter(nRender);
DsError.ThrowExceptionForHR(hr);
Marshal.ReleaseComObject(nRender);
nRender = null;
nRender = (IBaseFilter) new NullRenderer();
hr = graph.AddFilter((IBaseFilter)nRender, "Video Null Renderer");
DsError.ThrowExceptionForHR(hr);
hr = graph.Render(mpgOut);
DsError.ThrowExceptionForHR(hr);
hr = mpgOut.ConnectionMediaType(mt);
DsError.ThrowExceptionForHR(hr);
if (mt.formatType == FormatType.VideoInfo2)
{
VideoInfoHeader2 vih = (VideoInfoHeader2)Marshal.PtrToStructure(mt.formatPtr, typeof(VideoInfoHeader2));
return(vih);
}
}
}
finally
{
DsUtils.FreeAMMediaType(mt);
if (mpgOut != null)
{
Marshal.ReleaseComObject(mpgOut);
}
if (sgIn != null)
{
Marshal.ReleaseComObject(sgIn);
}
}
#if DEBUG
}
#endif
}
finally
{
if (nRender != null)
{
Marshal.ReleaseComObject(nRender);
}
if (capFilter != null)
{
Marshal.ReleaseComObject(capFilter);
}
if (graph != null)
{
while (Marshal.ReleaseComObject(graph) > 0)
{
;
}
}
}
return(null);
}
// This method changed to work with Windows 7
// Under this OS, the MPEG-2 Demux now have dozens of outputs pins.
// Rendering all of them is not a good solution.
// The rendering process must be more smart...
private void ConnectFilters()
{
int hr = 0;
int pinNumber = 0;
IPin pinOut, pinIn;
// After the rendering process, our 4 downstream filters must be rendered
bool bdaTIFRendered = false;
bool bdaSecTabRendered = false;
bool audioRendered = false;
bool videoRendered = false;
// for each output pins...
while (true)
{
pinOut = DsFindPin.ByDirection(mpeg2Demux, PinDirection.Output, pinNumber);
// Is the last pin reached ?
if (pinOut == null)
{
break;
}
IEnumMediaTypes enumMediaTypes = null;
AMMediaType[] mediaTypes = new AMMediaType[1];
try
{
// Get Pin's MediaType enumerator
hr = pinOut.EnumMediaTypes(out enumMediaTypes);
DsError.ThrowExceptionForHR(hr);
// for each media types...
while (enumMediaTypes.Next(mediaTypes.Length, mediaTypes, IntPtr.Zero) == 0)
{
// Store the majortype and the subtype and free the structure
Guid majorType = mediaTypes[0].majorType;
Guid subType = mediaTypes[0].subType;
DsUtils.FreeAMMediaType(mediaTypes[0]);
if (majorType == MediaType.Audio)
{
// Is the Audio already rendered ?
if (!audioRendered)
{
// Get the first input pin
pinIn = DsFindPin.ByDirection(audioRenderer, PinDirection.Input, 0);
// Render it with IntelliConnect (a decoder should be added between the two filters.
hr = graphBuilder.Connect(pinOut, pinIn);
DsError.ThrowExceptionForHR(hr);
// Release the Pin
Marshal.ReleaseComObject(pinIn);
pinIn = null;
// Notify that the audio renderer is connected
audioRendered = true;
}
}
else if (majorType == MediaType.Video)
{
// Is the Video already rendered ?
if (!videoRendered)
{
// Get the first input pin
pinIn = DsFindPin.ByDirection(videoRenderer, PinDirection.Input, 0);
// Render it with IntelliConnect (a decoder should be added between the two filters.
hr = graphBuilder.Connect(pinOut, pinIn);
DsError.ThrowExceptionForHR(hr);
// Release the Pin
Marshal.ReleaseComObject(pinIn);
pinIn = null;
// Notify that the video renderer is connected
videoRendered = true;
}
}
else if (majorType == MediaType.Mpeg2Sections)
{
if (subType == MediaSubType.Mpeg2Data)
{
// Is the MPEG-2 Sections and Tables Filter already rendered ?
if (!bdaSecTabRendered)
{
// Get the first input pin
pinIn = DsFindPin.ByDirection(bdaSecTab, PinDirection.Input, 0);
// A direct connection is enough
hr = graphBuilder.ConnectDirect(pinOut, pinIn, null);
DsError.ThrowExceptionForHR(hr);
// Release the Pin
Marshal.ReleaseComObject(pinIn);
pinIn = null;
// Notify that the MPEG-2 Sections and Tables Filter is connected
bdaSecTabRendered = true;
}
}
// This sample only support DVB-T or DVB-S so only supporting this subtype is enough.
// If you want to support ATSC or ISDB, don't forget to handle these network types.
else if (subType == MediaSubType.DvbSI)
{
// Is the BDA MPEG-2 Transport Information Filter already rendered ?
if (!bdaTIFRendered)
{
// Get the first input pin
pinIn = DsFindPin.ByDirection(bdaTIF, PinDirection.Input, 0);
// A direct connection is enough
hr = graphBuilder.ConnectDirect(pinOut, pinIn, null);
DsError.ThrowExceptionForHR(hr);
// Release the Pin
Marshal.ReleaseComObject(pinIn);
pinIn = null;
// Notify that the BDA MPEG-2 Transport Information Filter is connected
bdaTIFRendered = true;
}
}
}
}
}
finally
{
// Free COM objects
Marshal.ReleaseComObject(enumMediaTypes);
enumMediaTypes = null;
Marshal.ReleaseComObject(pinOut);
pinOut = null;
}
// Next pin, please !
pinNumber++;
}
}
public static void AddPreferredFilters(IGraphBuilder graphBuilder, IBaseFilter sourceFilter)
{
using (Settings xmlreader = new MPSettings())
{
bool autodecodersettings = xmlreader.GetValueAsBool("movieplayer", "autodecodersettings", false);
if (!autodecodersettings) // the user has not chosen automatic graph building by merits
{
// bool vc1ICodec,vc1Codec,xvidCodec = false; - will come later
bool aacCodec = false;
bool h264Codec = false;
// check the output pins of the splitter for known media types
IEnumPins pinEnum = null;
if (sourceFilter.EnumPins(out pinEnum) == 0)
{
int fetched = 0;
IPin[] pins = new IPin[1];
while (pinEnum.Next(1, pins, out fetched) == 0 && fetched > 0)
{
IPin pin = pins[0];
PinDirection pinDirection;
if (pin.QueryDirection(out pinDirection) == 0 && pinDirection == PinDirection.Output)
{
IEnumMediaTypes enumMediaTypesVideo = null;
if (pin.EnumMediaTypes(out enumMediaTypesVideo) == 0)
{
AMMediaType[] mediaTypes = new AMMediaType[1];
int typesFetched;
while (enumMediaTypesVideo.Next(1, mediaTypes, out typesFetched) == 0 && typesFetched > 0)
{
if (mediaTypes[0].majorType == MediaType.Video &&
(mediaTypes[0].subType == MediaSubType.H264 || mediaTypes[0].subType == MEDIASUBTYPE_AVC1))
{
Logger.Instance.Info("found H264 video on output pin");
h264Codec = true;
}
else if (mediaTypes[0].majorType == MediaType.Audio && mediaTypes[0].subType == MediaSubType.LATMAAC)
{
Logger.Instance.Info("found AAC audio on output pin");
aacCodec = true;
}
}
DirectShowUtil.ReleaseComObject(enumMediaTypesVideo);
}
}
DirectShowUtil.ReleaseComObject(pin);
}
DirectShowUtil.ReleaseComObject(pinEnum);
}
// add filters for found media types to the graph as configured in MP
if (h264Codec)
{
DirectShowUtil.ReleaseComObject(
DirectShowUtil.AddFilterToGraph(graphBuilder, xmlreader.GetValueAsString("movieplayer", "h264videocodec", "")));
}
else
{
DirectShowUtil.ReleaseComObject(
DirectShowUtil.AddFilterToGraph(graphBuilder, xmlreader.GetValueAsString("movieplayer", "mpeg2videocodec", "")));
}
if (aacCodec)
{
DirectShowUtil.ReleaseComObject(
DirectShowUtil.AddFilterToGraph(graphBuilder, xmlreader.GetValueAsString("movieplayer", "aacaudiocodec", "")));
}
else
{
DirectShowUtil.ReleaseComObject(
DirectShowUtil.AddFilterToGraph(graphBuilder, xmlreader.GetValueAsString("movieplayer", "mpeg2audiocodec", "")));
}
}
}
}
public static IEnumerator <WavFormatInfo> EnumerateFormatsForDirection(IBaseFilter filter, PinDirection direction)
{
if (filter == null)
{
throw new ArgumentNullException("filter");
}
int hr;
IEnumPins pinsEnum = null;
try
{
hr = filter.EnumPins(out pinsEnum);
DsError.ThrowExceptionForHR(hr);
if (pinsEnum == null)
{
throw new InvalidOperationException("pinsEnum is null");
}
IPin[] pins = new IPin[1];
while (true)
{
try
{
int pcFetched;
hr = pinsEnum.Next(pins.Length, pins, out pcFetched);
DsError.ThrowExceptionForHR(hr);
if (pcFetched == 1)
{
// we have something
IPin pin = pins[0];
string queryId;
hr = pin.QueryId(out queryId);
DsError.ThrowExceptionForHR(hr);
PinInfo pinInfo;
hr = pin.QueryPinInfo(out pinInfo);
DsError.ThrowExceptionForHR(hr);
if (pinInfo.dir != direction)
{
continue;
}
IEnumMediaTypes mediaTypesEnum = null;
try
{
hr = pin.EnumMediaTypes(out mediaTypesEnum);
DsError.ThrowExceptionForHR(hr);
AMMediaType[] mediaTypes = new AMMediaType[1];
int mtFetched;
while (true)
{
hr = mediaTypesEnum.Next(1, mediaTypes, out mtFetched);
DsError.ThrowExceptionForHR(hr);
if (mtFetched == 1)
{
if (mediaTypes[0].formatType == FormatType.WaveEx)
{
yield return(new WavFormatInfo(mediaTypes[0]));
}
}
else
{
break;
}
}
}
finally
{
if (mediaTypesEnum != null)
{
Marshal.ReleaseComObject(mediaTypesEnum);
}
}
}
else
{
break;
}
}
finally
{
if (pins[0] != null)
{
Marshal.ReleaseComObject(pins[0]);
}
pins[0] = null;
}
}
}
finally
{
if (pinsEnum != null)
{
Marshal.ReleaseComObject(pinsEnum);
}
}
}