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>
/// Gets iSC's available _AMMediaTypes, without freeing pbFormat
/// Caller should call MediaType.Free(_AMMediaType[]) when done
/// </summary>
public static _AMMediaType[] GetMediaTypes(IPin pin)
{
IEnumMediaTypes iEnum;
pin.EnumMediaTypes(out iEnum);
ArrayList alMTs = new ArrayList();
IntPtr[] ptrs = new IntPtr[1];
uint fetched;
iEnum.Next(1, ptrs, out fetched);
while(fetched == 1)
{
_AMMediaType mt = (_AMMediaType)Marshal.PtrToStructure(ptrs[0], typeof(_AMMediaType));
alMTs.Add(mt);
Marshal.FreeCoTaskMem(ptrs[0]);
ptrs[0] = IntPtr.Zero;
iEnum.Next(1, ptrs, out fetched);
}
_AMMediaType[] mts = new _AMMediaType[alMTs.Count];
alMTs.CopyTo(mts);
return mts;
}
private static IEnumMediaTypes GetEnumMediaTypes()
{
IBaseFilter filter;
int hr;
IPin pRet = null;
DsDevice [] capDevices;
// Get the collection of video devices
capDevices = DsDevice.GetDevicesOfCat(FilterCategory.VideoInputDevice);
if (capDevices.Length == 0)
{
throw new Exception("No video capture devices found!");
}
DsDevice dev = capDevices[0];
string s;
dev.Mon.GetDisplayName(null, null, out s);
filter = Marshal.BindToMoniker(s) as IBaseFilter;
pRet = DsFindPin.ByDirection(filter, PinDirection.Output, 0);
IEnumMediaTypes enumMediaTypes;
hr = pRet.EnumMediaTypes(out enumMediaTypes);
DsError.ThrowExceptionForHR(hr);
return(enumMediaTypes);
}
public static bool IsVideo(IPin pin)
{
if (pin == null)
{
throw new ArgumentNullException("pin");
}
int hr;
bool bRet = false;
var pmt = new AMMediaType[1];
IEnumMediaTypes ppEnum;
IntPtr i = IntPtr.Zero;
// Walk the MediaTypes for the pin
hr = pin.EnumMediaTypes(out ppEnum);
DESError.ThrowExceptionForHR(hr);
try
{
// Just read the first one
hr = ppEnum.Next(1, pmt, i);
DESError.ThrowExceptionForHR(hr);
bRet = pmt[0].majorType == MediaType.Video;
}
finally
{
Marshal.ReleaseComObject(ppEnum);
}
DsUtils.FreeAMMediaType(pmt[0]);
return(bRet);
}
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);
}
/// <summary>
/// Determine whether a specified pin is audio or video
/// </summary>
/// <param name="pPin">Pin to check</param>
/// <returns>True if pin is video</returns>
private bool IsVideo(IPin pPin)
{
int hr;
bool bRet = false;
AMMediaType[] pmt = new AMMediaType[1];
IEnumMediaTypes ppEnum;
// Walk the MediaTypes for the pin
hr = pPin.EnumMediaTypes(out ppEnum);
DESError.ThrowExceptionForHR(hr);
try
{
// Just read the first one
hr = ppEnum.Next(1, pmt, IntPtr.Zero);
DESError.ThrowExceptionForHR(hr);
bRet = pmt[0].majorType == MediaType.Video;
}
finally
{
Marshal.ReleaseComObject(ppEnum);
}
DsUtils.FreeAMMediaType(pmt[0]);
return(bRet);
}
/// <summary>
/// Gets iSC's available _AMMediaTypes, without freeing pbFormat
/// Caller should call MediaType.Free(_AMMediaType[]) when done
/// </summary>
public static _AMMediaType[] GetMediaTypes(IPin pin)
{
IEnumMediaTypes iEnum;
pin.EnumMediaTypes(out iEnum);
ArrayList alMTs = new ArrayList();
IntPtr[] ptrs = new IntPtr[1];
uint fetched;
iEnum.Next(1, ptrs, out fetched);
while (fetched == 1)
{
_AMMediaType mt = (_AMMediaType)Marshal.PtrToStructure(ptrs[0], typeof(_AMMediaType));
alMTs.Add(mt);
Marshal.FreeCoTaskMem(ptrs[0]);
ptrs[0] = IntPtr.Zero;
iEnum.Next(1, ptrs, out fetched);
}
_AMMediaType[] mts = new _AMMediaType[alMTs.Count];
alMTs.CopyTo(mts);
return(mts);
}
private int VideoIndex(IPin pPin)
{
int hr;
int bRet = -1;
AMMediaType[] pmt = new AMMediaType[1];
IEnumMediaTypes ppEnum;
// Walk the MediaTypes for the pin
hr = pPin.EnumMediaTypes(out ppEnum);
DsError.ThrowExceptionForHR(hr);
try {
do
{
bRet++;
// Just read the first one
hr = ppEnum.Next(1, pmt, IntPtr.Zero);
DsError.ThrowExceptionForHR(hr);
} while (pmt[0].majorType != MediaType.Video);
} catch {
bRet = -1;
} finally {
Marshal.ReleaseComObject(ppEnum);
}
DsUtils.FreeAMMediaType(pmt[0]);
return(bRet);
}
// if subtype is not supported by the pin the return value is -1
// if subtype is supported the return value indicates how many other types
// were skipped before we got this one.
public static int IsSubTypeSupported(IPin pPin, Guid subtype)
{
IEnumMediaTypes pEnumTypes;
int cFetched;
int nSkipped = 0;
bool bFound = false;
int hr = pPin.EnumMediaTypes(out pEnumTypes);
if (DsHlp.FAILED(hr))
{
return(-1);
}
IntPtr ptr;
while (pEnumTypes.Next(1, out ptr, out cFetched) == DsHlp.S_OK)
{
AMMediaType mt = (AMMediaType)Marshal.PtrToStructure(ptr, typeof(AMMediaType));
if (mt.subType == subtype)
{
FreeFormatBlock(ptr);
Marshal.FreeCoTaskMem(ptr);
bFound = true;
break;
}
// free the allocated memory
FreeFormatBlock(ptr);
Marshal.FreeCoTaskMem(ptr);
nSkipped++;
}
Marshal.ReleaseComObject(pEnumTypes);
return(bFound ? nSkipped : -1);
}
public static MediaType[] GetMediaTypes(this IPin pPin)
{
var mediaTypes = new List <MediaType>();
pPin.EnumMediaTypes(mt => mediaTypes.Add(new MediaType(mt.majorType, mt.subType)));
return(mediaTypes.ToArray());
}
/// <summary>
/// Returns a point with the max size of capture device capture window
/// </summary>
/// <param name="p_capPin">The pin that we are polling</param>
/// <returns></returns>
private int getMedia(IPin p_capPin, out AMMediaType p_refMedia)
{
int hr = 0;
int curMax = 0;
p_refMedia = null;
//Holds the video info
VideoInfoHeader v = new VideoInfoHeader();
//Enumeration of media types
IEnumMediaTypes mediaTypeEnum;
hr = p_capPin.EnumMediaTypes(out mediaTypeEnum);
DsError.ThrowExceptionForHR(hr);
//This array is size one because we will only be loading in one value at a time
AMMediaType[] mediaTypes = new AMMediaType[1];
IntPtr fetched = IntPtr.Zero;
hr = mediaTypeEnum.Next(1, mediaTypes, fetched);
DsError.ThrowExceptionForHR(hr);
//Iterate through viable mediatypes and find the largest media
while (fetched != null && mediaTypes[0] != null)
{
//Load the format pointer into v
Marshal.PtrToStructure(mediaTypes[0].formatPtr, v);
if (v.BmiHeader.Size != 0 && v.BmiHeader.ImageSize != 0)
{
//Find the largest image with format of VideoFormat. There will be two one with Video
// and another with VideoFormat2, SammpleGrabber will ony accept VideoFormat
// For simplicity down the road i want an RGB24 format
if (v.BmiHeader.ImageSize > curMax && mediaTypes[0].formatType == FormatType.VideoInfo &&
(mediaTypes[0].subType == MediaSubType.MJPG))
{
p_refMedia = mediaTypes[0];
curMax = v.BmiHeader.ImageSize;
}
}
hr = mediaTypeEnum.Next(1, mediaTypes, fetched);
DsError.ThrowExceptionForHR(hr);
}
hr = 0;
if (p_refMedia == null)
{
hr = -1;
}
Marshal.ReleaseComObject(mediaTypeEnum);
return(hr);
}
private void RenderNetDemux()
{
int hr;
IEnumPins enumPins;
IPin[] pins = new IPin[1];
hr = _netDmx.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)
{
hr = _captureGraphBuilder.RenderStream(null, null, upstreamPin, _videoDecoder, _videoRender);
}
else
{
AddAudioVolumeFilter();
AddAudioRenderer();
ConnectToAudio(upstreamPin, true);
}
}
}
}
finally
{
Marshal.ReleaseComObject(pins[0]);
}
}
}
finally
{
Marshal.ReleaseComObject(enumPins);
}
}
/// <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 TestEnumMediaTypes()
{
IPin testPin = GetSmartTeeInputPin();
IEnumMediaTypes enumMediaTypes;
int hr = testPin.EnumMediaTypes(out enumMediaTypes);
Marshal.ThrowExceptionForHR(hr);
Assert.IsNotNull(enumMediaTypes);
hr = enumMediaTypes.Reset();
Marshal.ThrowExceptionForHR(hr);
}
/// <summary>
/// QueryConnect checks if two Pins can be connected.
/// </summary>
/// <param name="pin">Pin 1</param>
/// <param name="other">Pin 2</param>
/// <returns>True if they accept connection</returns>
static bool QueryConnect(IPin pin, IPin other)
{
IEnumMediaTypes enumTypes;
int hr = pin.EnumMediaTypes(out enumTypes);
if (hr != 0 || enumTypes == null)
{
return(false);
}
int count = 0;
IntPtr ptrFetched = Marshal.AllocCoTaskMem(4);
try
{
for (; ;)
{
AMMediaType[] types = new AMMediaType[1];
hr = enumTypes.Next(1, types, ptrFetched);
if (hr != 0 || Marshal.ReadInt32(ptrFetched) == 0)
{
break;
}
count++;
try
{
if (other.QueryAccept(types[0]) == 0)
{
return(true);
}
}
finally
{
FilterGraphTools.FreeAMMediaType(types[0]);
}
}
PinInfo info;
PinInfo infoOther;
pin.QueryPinInfo(out info);
other.QueryPinInfo(out infoOther);
ServiceRegistration.Get <ILogger>().Info("Pins {0} and {1} do not accept each other. Tested {2} media types", info.name, infoOther.name, count);
FilterGraphTools.FreePinInfo(info);
FilterGraphTools.FreePinInfo(infoOther);
return(false);
}
finally
{
Marshal.FreeCoTaskMem(ptrFetched);
}
}
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);
}
}
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 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);
}
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);
}
int IPin.Connect(IPin pReceivePin, AMMediaType pmt)
{
IEnumMediaTypes emt;
if (connectedPin != null)
{
return(DsResults.E_AlreadyConnected);
}
if (pReceivePin == null)
{
return(E_POINTER);
}
if (pReceivePin.EnumMediaTypes(out emt) == S_OK)
{
var mediaTypes = new AMMediaType[1];
while (emt.Next(1, mediaTypes, IntPtr.Zero) == S_OK)
{
if (mediaTypes[0].majorType == MediaType.Stream && pReceivePin.ReceiveConnection(this, mediaTypes[0]) == S_OK)
{
emt = null;
connectedPin = pReceivePin;
return(S_OK);
}
}
emt = null;
}
if (pmt != null && pmt.majorType != MediaType.Null && pmt.majorType != MediaType.Stream)
{
return(DsResults.E_TypeNotAccepted);
}
if (pReceivePin.ReceiveConnection(this, mediaType) == S_OK)
{
connectedPin = pReceivePin;
return(S_OK);
}
return(DsResults.E_NoAcceptableTypes);
}
public static void EnumMediaTypes(this IPin pPin, Action <AMMediaType> action)
{
IEnumMediaTypes pEnumTypes;
var hr = pPin.EnumMediaTypes(out pEnumTypes);
if (hr == DsHlp.S_OK)
{
IntPtr ptr;
int cFetched;
if (pEnumTypes.Next(1, out ptr, out cFetched) == DsHlp.S_OK)
{
AMMediaType mt = (AMMediaType)Marshal.PtrToStructure(ptr, typeof(AMMediaType));
action(mt);
DsUtils.FreeFormatBlock(ptr);
Marshal.FreeCoTaskMem(ptr);
}
Marshal.ReleaseComObject(pEnumTypes);
}
}
/// <summary>
/// Constructs a DetailPinInfo for the specified pin
/// </summary>
/// <param name="pin">IPin interface to get info about</param>
public DetailPinInfo(IPin pin)
{
PinInfo pinInfo = new PinInfo();
int hr = pin.QueryPinInfo(out pinInfo);
DsError.ThrowExceptionForHR(hr);
IEnumMediaTypes enumMediaTypes;
hr = pin.EnumMediaTypes(out enumMediaTypes);
DsError.ThrowExceptionForHR(hr);
AMMediaType[] curMediaType = new AMMediaType[1];
IntPtr fetched2 = Marshal.AllocCoTaskMem(4);
try
{
if (enumMediaTypes.Next(1, curMediaType, fetched2) == 0)
{
if (Marshal.ReadInt32(fetched2) != 1)
{
throw new Exception("Cannot enumerate media types for pin!");
}
}
}
finally
{
Marshal.FreeCoTaskMem(fetched2);
}
this.Pin = pin;
this.Info = pinInfo;
this.Type = curMediaType[0];
BaseDSGraph.Release(enumMediaTypes);
}
public static Guid GetMediaType(IPin pPin)
{
Guid mediaType = Guid.Empty;
IEnumMediaTypes pEnumTypes;
int cFetched;
int hr = pPin.EnumMediaTypes(out pEnumTypes);
if (DsHlp.SUCCEEDED(hr))
{
IntPtr ptr;
if (pEnumTypes.Next(1, out ptr, out cFetched) == DsHlp.S_OK)
{
AMMediaType mt = (AMMediaType)Marshal.PtrToStructure(ptr, typeof(AMMediaType));
mediaType = mt.majorType;
// free the allocated memory
FreeFormatBlock(ptr);
Marshal.FreeCoTaskMem(ptr);
}
Marshal.ReleaseComObject(pEnumTypes);
}
return(mediaType);
}
/// <summary>
/// QueryConnect checks if two Pins can be connected.
/// </summary>
/// <param name="pin">Pin 1</param>
/// <param name="other">Pin 2</param>
/// <returns>True if they accept connection</returns>
static bool QueryConnect(IPin pin, IPin other)
{
IEnumMediaTypes enumTypes;
int hr = pin.EnumMediaTypes(out enumTypes);
if (hr != 0 || enumTypes == null)
return false;
int count = 0;
IntPtr ptrFetched = Marshal.AllocCoTaskMem(4);
try
{
for (; ; )
{
AMMediaType[] types = new AMMediaType[1];
hr = enumTypes.Next(1, types, ptrFetched);
if (hr != 0 || Marshal.ReadInt32(ptrFetched) == 0)
break;
count++;
try
{
if (other.QueryAccept(types[0]) == 0)
return true;
}
finally
{
FilterGraphTools.FreeAMMediaType(types[0]);
}
}
PinInfo info;
PinInfo infoOther;
pin.QueryPinInfo(out info);
other.QueryPinInfo(out infoOther);
ServiceRegistration.Get<ILogger>().Info("Pins {0} and {1} do not accept each other. Tested {2} media types", info.name, infoOther.name, count);
FilterGraphTools.FreePinInfo(info);
FilterGraphTools.FreePinInfo(infoOther);
return false;
}
finally
{
Marshal.FreeCoTaskMem(ptrFetched);
}
}
protected void RebuildMediaType(IPin pPin)
{
if (pPin != null)
{
//Detection if the Video Stream is VC-1 on output pin of the splitter
IEnumMediaTypes enumMediaTypesAudioVideo;
int hr = pPin.EnumMediaTypes(out enumMediaTypesAudioVideo);
AMMediaType[] mediaTypes = new AMMediaType[1];
int typesFetched;
PinInfo pinInfo;
pPin.QueryPinInfo(out pinInfo);
while (0 == enumMediaTypesAudioVideo.Next(1, mediaTypes, out typesFetched))
{
if (typesFetched == 0)
break;
if (mediaTypes[0].majorType == MediaType.Video && !pinInfo.name.ToLowerInvariant().Contains("sub"))
{
if (mediaTypes[0].subType == MediaSubType.VC1)
{
Log.Info("VideoPlayer9: found VC-1 video out pin");
vc1Codec = true;
}
if (mediaTypes[0].subType == MediaSubType.H264 || mediaTypes[0].subType == MediaSubType.AVC1)
{
Log.Info("VideoPlayer9: found H264 video out pin");
h264Codec = true;
}
if (mediaTypes[0].subType == MediaSubType.XVID || mediaTypes[0].subType == MediaSubType.xvid ||
mediaTypes[0].subType == MediaSubType.dx50 || mediaTypes[0].subType == MediaSubType.DX50 ||
mediaTypes[0].subType == MediaSubType.divx || mediaTypes[0].subType == MediaSubType.DIVX)
{
Log.Info("VideoPlayer9: found XVID video out pin");
xvidCodec = true;
}
MediatypeVideo = true;
}
else if (mediaTypes[0].majorType == MediaType.Audio)
{
//Detection if the Audio Stream is AAC on output pin of the splitter
if (mediaTypes[0].subType == MediaSubType.LATMAAC || mediaTypes[0].subType == MediaSubType.AAC)
{
Log.Info("VideoPlayer9: found AAC Audio out pin");
aacCodec = true;
}
if (mediaTypes[0].subType == MediaSubType.LATMAACLAF)
{
Log.Info("VideoPlayer9: found AAC LAVF Audio out pin");
aacCodecLav = true;
}
MediatypeAudio = true;
}
else if (mediaTypes[0].majorType == MediaType.Subtitle)
{
MediatypeSubtitle = true;
}
}
DirectShowUtil.ReleaseComObject(enumMediaTypesAudioVideo);
enumMediaTypesAudioVideo = null;
}
}
private int VideoIndex(IPin pPin)
{
int hr;
int bRet = -1;
AMMediaType[] pmt = new AMMediaType[1];
IEnumMediaTypes ppEnum;
// Walk the MediaTypes for the pin
hr = pPin.EnumMediaTypes(out ppEnum);
DsError.ThrowExceptionForHR(hr);
try {
do {
bRet++;
// Just read the first one
hr = ppEnum.Next(1, pmt, IntPtr.Zero);
DsError.ThrowExceptionForHR(hr);
} while (pmt[0].majorType != MediaType.Video);
} catch {
bRet = -1;
} finally {
Marshal.ReleaseComObject(ppEnum);
}
DsUtils.FreeAMMediaType(pmt[0]);
return bRet;
}
private static bool TestMediaTypes(IPin pin, IPin receiver)
{
bool ret = false;
IEnumMediaTypes types;
pin.EnumMediaTypes(out types);
types.Reset();
while (true)
{
AMMediaType[] mediaTypes = new AMMediaType[1];
int typesFetched;
int hr = types.Next(1, mediaTypes, out typesFetched);
if (hr != 0 || typesFetched == 0)
{
break;
}
//Log.Info("Check output type: {0}, {1}", mediaTypes[0].majorType,
// mediaTypes[0].subType);
if (receiver.QueryAccept(mediaTypes[0]) == 0)
{
//Log.Info("Accepted!");
ret = true;
break;
}
}
ReleaseComObject(types);
//Log.Info("-----EndofTypes");
return ret;
}
int IPin.Connect(IPin pReceivePin, AMMediaType pmt)
{
IEnumMediaTypes emt;
if (connectedPin != null)
return DsResults.E_AlreadyConnected;
if (pReceivePin == null)
return E_POINTER;
if (pReceivePin.EnumMediaTypes(out emt) == S_OK)
{
var mediaTypes = new AMMediaType[1];
while (emt.Next(1, mediaTypes, IntPtr.Zero) == S_OK)
if (mediaTypes[0].majorType == MediaType.Stream && pReceivePin.ReceiveConnection(this, mediaTypes[0]) == S_OK)
{
emt = null;
connectedPin = pReceivePin;
return S_OK;
}
emt = null;
}
if (pmt != null && pmt.majorType != MediaType.Null && pmt.majorType != MediaType.Stream)
return DsResults.E_TypeNotAccepted;
if (pReceivePin.ReceiveConnection(this, mediaType) == S_OK)
{
connectedPin = pReceivePin;
return S_OK;
}
return DsResults.E_NoAcceptableTypes;
}
protected override void RenderSource()
{
int hr;
Boolean videoComplete = false;
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, "Microsoft DTV-DVD Video Decoder");
ConnectFilters(_graphBuilder, _netSrc, pinInfo.name, _infPinTee, "Input", true);
ConnectFilters(_graphBuilder, _infPinTee, "Output1", _decoderFilter, "Video Input", true);
ConnectFilters(_graphBuilder, _infPinTee, "Output2", _bridgeSink, "Input 1", true);
ConnectFilters(_graphBuilder, _decoderFilter, "Video Output 1", _videoRender, "VMR Input0", true);
videoComplete = true;
}
else
{
throw new Exception("Can't Render--Unsupported codec in stream");
}
}
else if (mediaType.majorType == MediaType.Audio && HasAudio)
{
if (mediaType.subType == MediaSubType.PCM)
{
if (mediaType.formatType == FormatType.WaveEx)
{
// _audioEncoderFilter = AddFilterByName(_graphBuilder, FilterCategory.AudioCompressorCategory, "WM Speech Encoder DMO");
// _audioDecoderFilter = AddFilterByName(_graphBuilder, FilterCategory.LegacyAmFilterCategory, "WMSpeech Decoder DMO");
// _audioRenderFilter = AddFilterByName(_graphBuilder, FilterCategory.AudioRendererCategory, "Default DirectSound Device");
// ConnectFilters(_graphBuilder, _netSrc, pinInfo.name, _audioEncoderFilter, "in0", true);
// ConnectFilters(_graphBuilder, _audioEncoderFilter, "out0", _audioDecoderFilter, "in0", true);
// ConnectFilters(_graphBuilder, _audioDecoderFilter, "out0", _audioRenderFilter, "Audio Input pin (rendered)", true);
}
}
else if (mediaType.subType == new Guid("000000FF-0000-0010-8000-00AA00389B71")) // AAC Audio
{
_audioDecoderFilter = AddFilterByName(_graphBuilder, FilterCategory.LegacyAmFilterCategory, "Microsoft DTV-DVD Audio Decoder");
_audioRenderFilter = AddFilterByName(_graphBuilder, FilterCategory.AudioRendererCategory, "Default DirectSound Device");
ConnectFilters(_graphBuilder, _netSrc, pinInfo.name, _audioDecoderFilter, "XForm In", true);
ConnectFilters(_graphBuilder, _audioDecoderFilter, "XFrom Out", _audioRenderFilter, "Audio Input pin (rendered)", true);
}
}
}
}
}
finally
{
Marshal.ReleaseComObject(pins[0]);
}
}
}
finally
{
Marshal.ReleaseComObject(enumPins);
}
if (videoComplete == false)
{
throw new Exception("No video found");
}
}
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);
}
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);
}
}
}
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", "")));
}
}
}
}
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;
}
public static bool QueryConnect(IPin pin, IPin other)
{
IEnumMediaTypes enumTypes;
int hr = pin.EnumMediaTypes(out enumTypes);
if (hr != 0 || enumTypes == null)
{
return false;
}
int count = 0;
for (;;)
{
AMMediaType[] types = new AMMediaType[1];
int fetched;
hr = enumTypes.Next(1, types, out fetched);
if (hr != 0 || fetched == 0)
{
break;
}
count++;
if (other.QueryAccept(types[0]) == 0)
{
return true;
}
}
PinInfo info;
PinInfo infoOther;
pin.QueryPinInfo(out info);
DsUtils.FreePinInfo(info);
other.QueryPinInfo(out infoOther);
DsUtils.FreePinInfo(infoOther);
Log.Info("Pins {0} and {1} do not accept each other. Tested {2} media types", info.name, infoOther.name, count);
return false;
}
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;
}
public static bool TryConnect(IGraphBuilder graphBuilder, string filtername, IPin outputPin, bool TryNewFilters)
{
int hr;
Log.Info("----------------TryConnect-------------");
PinInfo outputInfo;
outputPin.QueryPinInfo(out outputInfo);
DsUtils.FreePinInfo(outputInfo);
//ListMediaTypes(outputPin);
ArrayList currentfilters = GetFilters(graphBuilder);
foreach (IBaseFilter filter in currentfilters)
{
if (TryConnect(graphBuilder, filtername, outputPin, filter))
{
ReleaseFilters(currentfilters);
return true;
}
}
ReleaseFilters(currentfilters);
//not found, try new filter from registry
if (TryNewFilters)
{
Log.Info("No preloaded filter could be connected. Trying to load new one from registry");
IEnumMediaTypes enumTypes;
hr = outputPin.EnumMediaTypes(out enumTypes);
if (hr != 0)
{
Log.Debug("Failed: {0:x}", hr);
return false;
}
Log.Debug("Got enum");
ArrayList major = new ArrayList();
ArrayList sub = new ArrayList();
Log.Debug("Getting corresponding filters");
for (;;)
{
AMMediaType[] mediaTypes = new AMMediaType[1];
int typesFetched;
hr = enumTypes.Next(1, mediaTypes, out typesFetched);
if (hr != 0 || typesFetched == 0)
{
break;
}
major.Add(mediaTypes[0].majorType);
sub.Add(mediaTypes[0].subType);
}
ReleaseComObject(enumTypes);
Log.Debug("Found {0} media types", major.Count);
Guid[] majorTypes = (Guid[])major.ToArray(typeof (Guid));
Guid[] subTypes = (Guid[])sub.ToArray(typeof (Guid));
Log.Debug("Loading filters");
ArrayList filters = FilterHelper.GetFilters(majorTypes, subTypes, (Merit)0x00400000);
Log.Debug("Loaded {0} filters", filters.Count);
foreach (string name in filters)
{
if (!CheckFilterIsLoaded(graphBuilder, name))
{
Log.Debug("Loading filter: {0}", name);
IBaseFilter f = AddFilterToGraph(graphBuilder, name);
if (f != null)
{
if (TryConnect(graphBuilder, filtername, outputPin, f))
{
ReleaseComObject(f);
return true;
}
else
{
graphBuilder.RemoveFilter(f);
ReleaseComObject(f);
}
}
}
else
{
Log.Debug("Ignoring filter {0}. Already in graph.", name);
}
}
}
Log.Debug("TryConnect failed.");
return outputInfo.name.StartsWith("~");
}
public int Connect(IPin pReceivePin, AMMediaType pmt)
{
Monitor.Enter(this);
int hr = S_OK;
pin = null;
pintype = null;
allocator = null;
string id = "Unnamed pin";
pReceivePin.QueryId(out id);
PinInfo pi = new PinInfo();
hr = pReceivePin.QueryPinInfo(out pi);
if (hr == S_OK)
{
FilterInfo fi = new FilterInfo();
hr = pi.filter.QueryFilterInfo(out fi);
if (hr == S_OK)
{
id += (" (" + fi.achName);
}
Guid guid;
hr = pi.filter.GetClassID(out guid);
if (hr == S_OK)
{
id += (", " + guid.ToString());
}
id += ")";
}
try
{
AMMediaType amt = null;
if (pmt != null)
{
amt = pmt;
}
else
#if false
{
IEnumMediaTypes ie;
hr = pReceivePin.EnumMediaTypes(out ie);
int fetched;
int alloc = Marshal.SizeOf(typeof(AMMediaType));
IntPtr mtypePtr = Marshal.AllocCoTaskMem(alloc);
while (ie.Next(1, mtypePtr, out fetched) == S_OK)
{
amt = new AMMediaType();
Marshal.PtrToStructure(mtypePtr, amt);
hr = pReceivePin.QueryAccept(amt);
if (hr == S_OK)
{
break;
}
DsUtils.FreeAMMediaType(amt);
amt = null;
}
if (fetched == 0)
{
amt = null;
}
Marshal.FreeCoTaskMem(mtypePtr);
}
if (amt == null)
#endif
{
amt = mediatype;
}
hr = pReceivePin.QueryAccept(amt);
if (hr == S_FALSE)
{
log.InfoFormat("No media type for pin '{0}'", id);
Monitor.Exit(this);
return VFW_E_NO_ACCEPTABLE_TYPES;
}
hr = pReceivePin.ReceiveConnection(this, amt);
if (hr == VFW_E_TYPE_NOT_ACCEPTED)
{
log.InfoFormat("No connection to pin '{0}'", id);
Monitor.Exit(this);
return VFW_E_NO_ACCEPTABLE_TYPES;
}
DsError.ThrowExceptionForHR(hr);
pin = pReceivePin;
pintype = amt;
}
catch (Exception e)
{
LogUtil.ExceptionLog.ErrorFormat("Caught exception in connect ({0}): {1}{2}", id, e.Message, e.StackTrace);
pin = null;
pintype = null;
allocator = null;
Monitor.Exit(this);
return VFW_E_NO_TRANSPORT;
}
Monitor.Exit(this);
log.InfoFormat("Connected to pin '{0}'", id);
return S_OK;
}
/// <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 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);
}
}
}
/// <summary>
/// Determine whether a specified pin is audio or video
/// </summary>
/// <param name="pPin">Pin to check</param>
/// <returns>True if pin is video</returns>
private bool IsVideo(IPin pPin)
{
int hr;
bool bRet = false;
AMMediaType[] pmt = new AMMediaType[1];
IEnumMediaTypes ppEnum;
// Walk the MediaTypes for the pin
hr = pPin.EnumMediaTypes(out ppEnum);
DESError.ThrowExceptionForHR(hr);
try
{
// Just read the first one
hr = ppEnum.Next(1, pmt, IntPtr.Zero);
DESError.ThrowExceptionForHR(hr);
bRet = pmt[0].majorType == MediaType.Video;
}
finally
{
Marshal.ReleaseComObject(ppEnum);
}
DsUtils.FreeAMMediaType(pmt[0]);
return bRet;
}
private void RenderSource()
{
int hr;
IEnumPins enumPins;
IPin[] pins = new IPin[1];
_muxer = AddFilterByName(_graphBuilder, FilterCategory.LegacyAmFilterCategory, "LEAD MPEG2 Transport Demultiplexer");
ConnectFilters(_graphBuilder, _netSrc, "Output", _muxer, "Input 01", true);
hr = _muxer.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"))) // H264
{
_decoderFilter = AddFilterByName(_graphBuilder, FilterCategory.LegacyAmFilterCategory, "LEAD H264 Decoder (3.0)");
ConnectFilters(_graphBuilder, _muxer, 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, _muxer, 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
{
// RALPH
// throw new Exception("Can't Render--Unsupported type - audio? not supported");
}
}
}
}
finally
{
Marshal.ReleaseComObject(pins[0]);
}
}
}
finally
{
Marshal.ReleaseComObject(enumPins);
}
}
public static bool IsVideo(IPin pin)
{
if (pin == null) throw new ArgumentNullException("pin");
int hr;
bool bRet = false;
var pmt = new AMMediaType[1];
IEnumMediaTypes ppEnum;
IntPtr i = IntPtr.Zero;
// Walk the MediaTypes for the pin
hr = pin.EnumMediaTypes(out ppEnum);
DESError.ThrowExceptionForHR(hr);
try
{
// Just read the first one
hr = ppEnum.Next(1, pmt, i);
DESError.ThrowExceptionForHR(hr);
bRet = pmt[0].majorType == MediaType.Video;
}
finally
{
Marshal.ReleaseComObject(ppEnum);
}
DsUtils.FreeAMMediaType(pmt[0]);
return bRet;
}
private static void ListMediaTypes(IPin pin)
{
IEnumMediaTypes types;
pin.EnumMediaTypes(out types);
types.Reset();
while (true)
{
AMMediaType[] mediaTypes = new AMMediaType[1];
int typesFetched;
int hr = types.Next(1, mediaTypes, out typesFetched);
if (hr != 0 || typesFetched == 0)
{
break;
}
Log.Info("Has output type: {0}, {1}", mediaTypes[0].majorType,
mediaTypes[0].subType);
}
ReleaseComObject(types);
Log.Info("-----EndofTypes");
}
