/// <summary>
/// 指定したピンはInputピンか？
/// </summary>
/// <param name="pin">ピン</param>
/// <returns>Inputピンである場合true</returns>
public static bool IsInputPin(IPin pin)
{
PinDirection dir;
pin.QueryDirection(out dir);
return(dir == PinDirection.Input);
}
protected virtual void SetupAudio()
{
int hr;
IEnumFilters enumFilters;
hr = _graph.EnumFilters(out enumFilters);
DsError.ThrowExceptionForHR(hr);
IBaseFilter[] filters = new IBaseFilter[1];
IntPtr fetched = new IntPtr();
while (enumFilters.Next(1, filters, fetched) == 0)
{
IBaseFilter filter = filters[0] as IBaseFilter;
IPin unconnectedPin = DsFindPin.ByConnectionStatus((IBaseFilter)filter, PinConnectedStatus.Unconnected, 0);
if (unconnectedPin != null)
{
PinDirection direction;
hr = unconnectedPin.QueryDirection(out direction);
DsError.ThrowExceptionForHR(hr);
if (direction == PinDirection.Output)
{
hr = _graph.Render(unconnectedPin);
DsError.ThrowExceptionForHR(hr);
SetupSampleGrabber();
}
}
}
}
public void TestQueryDirection()
{
IPin testPin = GetSmartTeeInputPin();
PinDirection pDir;
int hr = testPin.QueryDirection(out pDir);
Marshal.ThrowExceptionForHR(hr);
Assert.IsTrue(pDir == PinDirection.Input || pDir == PinDirection.Output);
}
static IPin FindPinByDirection(IBaseFilter filter, PinDirection direction)
{
IPin destPin = null;
IEnumPins iEnum;
int hr;
IPin[] pins = new IPin[1];
hr = filter.EnumPins(out iEnum);
DsError.ThrowExceptionForHR(hr);
if (iEnum == null)
{
throw new InvalidOperationException("iEnum is null");
}
IntPtr fetched = Marshal.AllocCoTaskMem(4);
hr = iEnum.Next(1, pins, fetched);
DsError.ThrowExceptionForHR(hr);
while (Marshal.ReadInt32(fetched) == 1)
{
PinDirection pinDir;
IPin pPin;
destPin = pins[0];
hr = destPin.QueryDirection(out pinDir);
DsError.ThrowExceptionForHR(hr);
destPin.ConnectedTo(out pPin);
if (pPin == null && pinDir == direction)
{
break;
}
if (pPin != null)
{
Marshal.ReleaseComObject(pPin);
}
hr = iEnum.Next(1, pins, fetched);
DsError.ThrowExceptionForHR(hr);
}
Marshal.FreeCoTaskMem(fetched);
return(destPin);
}
private bool IsMatchingPin(IPin pin, PinDirection direction, Guid mediaType)
{
PinDirection pinDirection;
int hr = pin.QueryDirection(out pinDirection);
DsError.ThrowExceptionForHR(hr);
if (pinDirection != direction)
{
// The pin lacks direction
return(false);
}
IPin connectedPin;
hr = pin.ConnectedTo(out connectedPin);
if ((uint)hr != 0x80040209 /* Pin is not connected */)
{
DsError.ThrowExceptionForHR(hr);
}
if (connectedPin != null)
{
// The pin is already connected
Marshal.ReleaseComObject(connectedPin);
return(false);
}
IEnumMediaTypes mediaTypesEnum;
hr = pin.EnumMediaTypes(out mediaTypesEnum);
DsError.ThrowExceptionForHR(hr);
AMMediaType[] mediaTypes = new AMMediaType[1];
while (mediaTypesEnum.Next(1, mediaTypes, IntPtr.Zero) == 0)
{
Guid majorType = mediaTypes[0].majorType;
DsUtils.FreeAMMediaType(mediaTypes[0]);
if (majorType == mediaType)
{
// We have found the pin we were looking for
return(true);
}
}
return(false);
}
/// <summary>
/// Query whether a pin has a specified direction (input/output).
/// </summary>
/// <param name="pPin">Specifies the pin to check.</param>
/// <param name="dir">Specifies the direction to match against the actual direction.</param>
/// <param name="bResult">Specifies the direction matching status.</param>
/// <returns>An error value < 0 is returned or 0 for success.</returns>
public static int IsPinDirection(IPin pPin, PinDirection dir, out bool bResult)
{
PinDirection pinDir;
bResult = false;
int hr = pPin.QueryDirection(out pinDir);
if (hr == 0)
{
bResult = (pinDir == dir) ? true : false;
}
return(hr);
}
public static void LogOutputPinsConnectionRecursive(IBaseFilter filter, string previous = "")
{
bool log = true;
IEnumPins pinEnum = null;
if (filter.EnumPins(out pinEnum) == 0)
{
FilterInfo sourceFilterInfo;
filter.QueryFilterInfo(out sourceFilterInfo);
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)
{
log = false;
IPin connectedPin;
if (pin.ConnectedTo(out connectedPin) == 0 && connectedPin != null)
{
PinInfo connectedPinInfo;
connectedPin.QueryPinInfo(out connectedPinInfo);
FilterInfo connectedFilterInfo;
connectedPinInfo.filter.QueryFilterInfo(out connectedFilterInfo);
if (previous == "")
{
previous = sourceFilterInfo.achName;
}
DirectShowUtil.ReleaseComObject(connectedPin, 2000);
IBaseFilter connectedFilter;
if (connectedFilterInfo.pGraph.FindFilterByName(connectedFilterInfo.achName, out connectedFilter) == 0 && connectedFilter != null)
{
LogOutputPinsConnectionRecursive(connectedFilter, previous + string.Format(" --> {0}", connectedFilterInfo.achName));
DirectShowUtil.ReleaseComObject(connectedFilter);
}
}
DirectShowUtil.ReleaseComObject(pin, 2000);
}
}
}
DirectShowUtil.ReleaseComObject(pinEnum, 2000);
if (log)
{
Log.Instance.Debug(previous);
}
}
// from 'DShowUtil.cpp'
public static int GetPin(IBaseFilter filter, PinDirection dirrequired, out IPin ppPin, int which)
{
ppPin = null;
int hr;
IEnumPins pEnum;
uint cFetched;
hr = filter.EnumPins(out pEnum);
if ((hr < 0) || (pEnum == null))
{
return(hr);
}
try
{
PinDirection dir;
do
{
hr = pEnum.Next(1, out ppPin, out cFetched);
dir = (PinDirection)3;
hr = ppPin.QueryDirection(out dir);
if ((hr == 0) && (dir == dirrequired))
{
if (which == 0)
{
return(0);
}
else
{
ppPin = null;
which--;
}
}
else
{
Marshal.ReleaseComObject(ppPin);
}
}while(hr == 0);
}
catch (Exception)
{
return(hr);
}
return(hr);
}
/// <summary>
/// Gets the first pin of the specified direction and connection status. You also specify
/// how many matching pins should be skipped before a desired pin is returned.
///
/// If this function finds a matching pin, it returns an IPin interface pointer
/// with an outstanding reference count. The caller is responsible for releasing the interface.
///
/// Leaving the last two parameters at their default
/// values is like saying: "Gimme the first unconnected pin".
/// </summary>
/// <param name="pFilter">Filter</param>
/// <param name="pinDir">Pin direction</param>
/// <param name="bConnected">Whether the returned Pin should be connected to some other pin</param>
/// <param name="nPinsToSkip">How many Pins that match the conditions should be skipped</param>
/// <returns></returns>
public static IPin GetPin(IBaseFilter pFilter, PinDirection pinDir, bool bConnected, int nPinsToSkip)
{
bool bFound = false;
IEnumPins pEnum;
IPin pPin = null;
int cFetched;
int nSkipped = 0;
IPin pConnectedPin = null;
int hr = pFilter.EnumPins(out pEnum);
if (DsHlp.FAILED(hr) || pEnum == null)
{
return(null);
}
while ((pEnum.Next(1, out pPin, out cFetched) == DsHlp.S_OK) && pPin != null)
{
PinDirection PinDirThis;
pPin.QueryDirection(out PinDirThis);
if (pinDir == PinDirThis)
{
hr = pPin.ConnectedTo(out pConnectedPin);
if (pConnectedPin != null)
{
Marshal.ReleaseComObject(pConnectedPin);
pConnectedPin = null;
}
if ((hr == DsHlp.S_OK && bConnected) || ((uint)hr == DsHlp.VFW_E_NOT_CONNECTED && !bConnected))
{
if (nSkipped == nPinsToSkip)
{
bFound = true;
break;
}
else
{
nSkipped++;
}
}
}
Marshal.ReleaseComObject(pPin);
pPin = null;
}
Marshal.ReleaseComObject(pEnum);
return(bFound ? pPin : null);
}
private static bool IsMatchingPin(IPin pin, PinDirection direction, Guid mediaType)
{
PinDirection pinDirection;
int hr = pin.QueryDirection(out pinDirection);
DsError.ThrowExceptionForHR(hr);
if (pinDirection != direction)
// The pin lacks direction
return false;
IPin connectedPin;
hr = pin.ConnectedTo(out connectedPin);
if ((uint)hr != 0x80040209 /* Pin is not connected */)
DsError.ThrowExceptionForHR(hr);
if (connectedPin != null)
{
// The pin is already connected
Marshal.ReleaseComObject(connectedPin);
return false;
}
IEnumMediaTypes mediaTypesEnum;
hr = pin.EnumMediaTypes(out mediaTypesEnum);
DsError.ThrowExceptionForHR(hr);
AMMediaType[] mediaTypes = new AMMediaType[1];
while (mediaTypesEnum.Next(1, mediaTypes, IntPtr.Zero) == 0)
{
Guid majorType = mediaTypes[0].majorType;
DsUtils.FreeAMMediaType(mediaTypes[0]);
if (majorType == mediaType)
{
// We have found the pin we were looking for
return true;
}
}
return false;
}
protected IPin GetUnconnectedPin(IBaseFilter filter, PinDirection direction)
{
IPin destPin = null;
IEnumPins iEnum;
var pins = new IPin[1];
var hr = filter.EnumPins(out iEnum);
Marshal.ThrowExceptionForHR(hr);
var fetched = Marshal.AllocCoTaskMem(4);
hr = iEnum.Next(1, pins, fetched);
Marshal.ThrowExceptionForHR(hr);
while (Marshal.ReadInt32(fetched) == 1)
{
PinDirection pinDir;
IPin pPin;
destPin = pins[0];
hr = destPin.QueryDirection(out pinDir);
Marshal.ThrowExceptionForHR(hr);
PinInfo info;
destPin.QueryPinInfo(out info);
//var name = info.name;
destPin.ConnectedTo(out pPin);
if (pPin == null && pinDir == direction)
{
break;
}
hr = iEnum.Next(1, pins, fetched);
Marshal.ThrowExceptionForHR(hr);
}
Marshal.FreeCoTaskMem(fetched);
return(destPin);
}
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", "")));
}
}
}
}
/// <summary>
/// 指定したピンはOutputピンか？
/// </summary>
/// <param name="pin">ピン</param>
/// <returns>Outputピンである場合true</returns>
public static bool IsOutputPin(IPin pin)
{
PinDirection dir;
pin.QueryDirection(out dir);
return dir == PinDirection.Output;
}
public int Connect(IPin pReceivePin, AMMediaType pmt)
{
unchecked
{
if (_ConnectedPin != null)
{
return((int)HRESULT.VFW_E_ALREADY_CONNECTED);
}
PinDirection pd;
pReceivePin.QueryDirection(out pd);
if (pd == _Direction)
{
return((int)HRESULT.VFW_E_INVALID_DIRECTION);
}
PinInfo pi;
pReceivePin.QueryPinInfo(out pi);
FilterInfo fi;
pi.filter.QueryFilterInfo(out fi);
Debug.WriteLine(fi.achName + "." + pi.name, _Name + " connect attempt from");
if (pi.name == "Subpicture Input")
{
}
HRESULT hr = HRESULT.VFW_E_NO_ACCEPTABLE_TYPES;
//
// Try match our media types with the specific one requested
// if any...
//
if (null != (pmt))
{
for (int i = 0; i < MediaTypes.Count; i++)
{
if (MatchesPartial(MediaTypes[i], pmt))
{
hr = OnReceiveConnection(pReceivePin, MediaTypes[i]);
if (hr != HRESULT.S_OK)
{
// pReceivePin.Disconnect();
}
else
{
break;
}
}
}
}
//
// Otherwise try force-connect all of the ones we like.
//
if (hr != HRESULT.S_OK)
{
for (int i = 0; i < MediaTypes.Count; i++)
{
AMMediaType newMT = new AMMediaType();
Copy(MediaTypes[i], newMT);
hr = (HRESULT)pReceivePin.QueryAccept(newMT);
if (hr == HRESULT.S_OK)
{
hr = OnReceiveConnection(pReceivePin, newMT);
if (hr != HRESULT.S_OK)
{
//pReceivePin.Disconnect();
}
else
{
break;
}
}
}
}
//
// Failing that, try connect with any of their numerous
// supported types..
//
if (hr != HRESULT.S_OK)
{
IEnumMediaTypes en;
pReceivePin.EnumMediaTypes(out en);
en.Reset();
/*
* Unsafe pointer edition
* ======================
* I was experminting AMMediaType as a value struct type
* for better marshalling.
*
* AMMediaType* types = null;
* int fetched = 0;
* do
* {
* HRESULT r = en.Next(1, (AMMediaType**)&types, out fetched);
* if (r != HRESULT.S_OK
|| fetched == 0)
|| break;
|| AMMediaType tmp = *types;
|| for (int x = 0; x < MediaTypes.Count; x++)
|| {
|| if ((MediaTypes[x].majorType == tmp.majorType
|| && MediaTypes[x].subType == tmp.subType)
|| AcceptsAnyMedia)
|| {
|| hr = OnReceiveConnection(pReceivePin, tmp); //MediaTypes[x]
||
|| if (hr != HRESULT.S_OK)
|| {
|| pReceivePin.Disconnect();
|| }
|| else
|| break;
|| }
|| }
|| AMMediaType.Free(tmp);
||} while (fetched > 0);*/
AMMediaType[] types = new AMMediaType[100];
IntPtr ptr = ToPtr(types);
IntPtr fetched = IntPtr.Zero;
en.Next(10, types, fetched);
types = FromIntPtr(ptr, fetched.ToInt32());
if (fetched.ToInt32() > 0 &&
types != null)
{
for (int x = 0; x < MediaTypes.Count; x++)
{
for (int i = 0; i < fetched.ToInt32(); i++)
{
if ((MediaTypes[x].majorType == types[i].majorType &&
MediaTypes[x].subType == types[i].subType) ||
AcceptsAnyMedia)
{
hr = OnReceiveConnection(pReceivePin, types[i]);
if (hr != HRESULT.S_OK)
{
//pReceivePin.Disconnect();
}
else
{
break;
}
}
}
if (hr == HRESULT.S_OK)
{
break;
}
}
}
for (int i = 0; i < fetched.ToInt32(); i++)
{
Free(types[i]);
}
if (Marshal.IsComObject(en))
{
Marshal.ReleaseComObject(en);
}
}
if (hr != HRESULT.S_OK)
{
// Final clean up
this.Disconnect();
if (Marshal.IsComObject(pReceivePin))
{
Marshal.ReleaseComObject(pReceivePin);
}
// Connect failed, but may have returned S_FALSE
// so this ensures a better return code.
hr = HRESULT.VFW_E_NO_ACCEPTABLE_TYPES;
}
if (hr == HRESULT.S_OK)
{
ResolveConnectedFilter();
}
return((int)hr);
}
}
