/
DirectShowUtil.cs
2426 lines (2292 loc) · 75 KB
/
DirectShowUtil.cs
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#region Copyright (C) 2005-2018 Team MediaPortal
// Copyright (C) 2005-2011 Team MediaPortal
// http://www.team-mediaportal.com
//
// MediaPortal is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 2 of the License, or
// (at your option) any later version.
//
// MediaPortal is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with MediaPortal. If not, see <http://www.gnu.org/licenses/>.
#endregion
using System;
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics;
using System.Runtime.InteropServices;
using System.Runtime.InteropServices.ComTypes;
using System.Threading;
using DirectShowLib;
using MediaPortal.GUI.Library;
using MediaPortal.Player;
using MediaPortal.Util;
using SharpDX.Direct3D9;
using Microsoft.Win32;
#pragma warning disable 618
namespace DShowNET.Helper
{
/// <summary>
///
/// </summary>
public class DirectShowUtil
{
private const int magicConstant = -759872593;
private static object audioLock = new object();
static DirectShowUtil() {}
public static IBaseFilter AddFilterToGraph(IGraphBuilder graphBuilder, string strFilterName)
{
return AddFilterToGraph(graphBuilder, strFilterName, Guid.Empty);
}
public static IBaseFilter AddFilterToGraph(IGraphBuilder graphBuilder, string strFilterName, Guid clsid)
{
try
{
IBaseFilter NewFilter = null;
foreach (Filter filter in Filters.LegacyFilters)
{
if (String.Compare(filter.Name, strFilterName, StringComparison.OrdinalIgnoreCase) == 0 && (clsid == Guid.Empty || filter.CLSID == clsid))
{
NewFilter = (IBaseFilter)Marshal.BindToMoniker(filter.MonikerString);
int hr = graphBuilder.AddFilter(NewFilter, strFilterName);
if (hr < 0)
{
Log.Error("DirectShowUtil: Failed: Unable to add filter: {0} to graph", strFilterName);
NewFilter = null;
}
else
{
Log.Info("DirectShowUtil: Added filter: {0} to graph", strFilterName);
}
break;
}
}
if (NewFilter == null)
{
Log.Error("DirectShowUtil: Failed filter: {0} not found", strFilterName);
}
return NewFilter;
}
catch (Exception ex)
{
Log.Error("DirectShowUtil: Failed filter: {0} not found {0}", strFilterName, ex.Message);
return null;
}
}
public static IBaseFilter AddAudioRendererToGraph(IGraphBuilder graphBuilder, string strFilterName, bool setAsReferenceClock)
{
try
{
Log.Debug("DirectShowUtil: AddAudioRendererToGraph : ({0}) init", strFilterName);
IBaseFilter newFilter = AddAudioRenderer(graphBuilder, strFilterName, setAsReferenceClock);
Log.Debug("DirectShowUtil: AddAudioRendererToGraph : ({0}) loaded", strFilterName);
if (newFilter == null)
{
Log.Info("DirectShowUtil: AddAudioRendererToGraph failed filter: ({0}) not found", strFilterName);
Log.Info("DirectShowUtil: AddAudioRendererToGraph wait 5 secs before trying to adding back audio renderer device");
Thread.Sleep(5000);
Log.Debug("DirectShowUtil: AddAudioRendererToGraph : ({0}) ReloadFilterCollection init", strFilterName);
FilterHelper.ReloadFilterCollection();
Log.Debug("DirectShowUtil: AddAudioRendererToGraph : ({0}) ReloadFilterCollection done", strFilterName);
return AddAudioRenderer(graphBuilder, strFilterName, setAsReferenceClock);
}
Log.Debug("DirectShowUtil: AddAudioRendererToGraph : ({0}) done", strFilterName);
return newFilter;
}
catch (Exception ex)
{
Log.Error("DirectShowUtil: AddAudioRendererToGraph failed filter: ({0}) not found Exception : {1}", strFilterName, ex.Message);
Log.Error("DirectShowUtil: AddAudioRendererToGraph Wait 5 secs before trying to adding back audio renderer device Exception : {0}", ex.Message);
Thread.Sleep(5000);
FilterHelper.ReloadFilterCollection();
return AddAudioRenderer(graphBuilder, strFilterName, setAsReferenceClock);
}
}
private static IBaseFilter AddAudioRenderer(IGraphBuilder graphBuilder, string strFilterName,
bool setAsReferenceClock)
{
try
{
IPin pinOut = null;
IBaseFilter newFilter = null;
IEnumFilters enumFilters;
HResult hr = new HResult(graphBuilder.EnumFilters(out enumFilters));
Log.Info("DirectShowUtil: AddAudioRenderer - Attach volume handler device to audio renderer: " + strFilterName);
if (OSInfo.OSInfo.Win10OrLater() && VolumeHandler.Instance != null)
{
VolumeHandler.Instance.ChangeAudioDevice(strFilterName, false);
if (!VolumeHandler.Instance.DetectedDevice())
{
return null;
}
}
GUIGraphicsContext.CurrentAudioRenderer = strFilterName;
Log.Info("DirectShowUtil: First try to insert new audio renderer {0} ", strFilterName);
// next add the new one...
foreach (Filter filter in Filters.AudioRenderers)
{
Log.Debug("DirectShowUtil: List AddAudioRenderer filter: {0} to graph for {1}", filter.Name, strFilterName);
if (String.Compare(filter.Name, strFilterName, StringComparison.OrdinalIgnoreCase) == 0)
{
Log.Info("DirectShowUtil: Found audio renderer");
newFilter = (IBaseFilter) Marshal.BindToMoniker(filter.MonikerString);
hr.Set(graphBuilder.AddFilter(newFilter, strFilterName));
if (hr < 0)
{
Log.Error("DirectShowUtil: unable to add filter:{0} to graph", strFilterName);
newFilter = null;
}
else
{
Log.Debug("DirectShowUtil: added filter:{0} to graph", strFilterName);
if (pinOut != null)
{
hr.Set(graphBuilder.Render(pinOut));
if (hr == 0)
{
Log.Info(" pinout rendererd");
}
else
{
Log.Error(" failed: pinout render");
}
}
if (setAsReferenceClock)
{
hr.Set((graphBuilder as IMediaFilter).SetSyncSource(newFilter as IReferenceClock));
if (hr != 0)
{
Log.Warn("DirectShowUtil: setAsReferenceClock sync source " + hr.ToDXString());
}
}
return newFilter;
}
} //if (String.Compare(filter.Name,strFilterName,true) ==0)
} //foreach (Filter filter in filters.AudioRenderers)
if (newFilter == null)
{
Log.Error("DirectShowUtil: failed filter {0} not found", strFilterName);
}
}
catch {}
Log.Info("DirectShowUtil: inserting new audio renderer {0} failed - try a new method", strFilterName);
try
{
IPin pinOut = null;
IBaseFilter NewFilter = null;
Log.Info("DirectShowUtil: add filter:{0} to graph clock:{1}", strFilterName, setAsReferenceClock);
//check first if audio renderer exists!
bool bRendererExists = false;
lock (audioLock)
{
foreach (Filter filter in Filters.AudioRenderers)
{
try
{
Log.Debug(
"DirectShowUtil: List 'check if already exist' AddAudioRendererToGraph filter: {0} to graph for {1}",
filter.Name, strFilterName);
if (String.Compare(filter.Name, strFilterName, StringComparison.OrdinalIgnoreCase) == 0)
{
bRendererExists = true;
Log.Info("DirectShowUtil: found audio renderer - {0}", filter.Name);
}
}
catch (Exception e)
{
}
}
if (!bRendererExists)
{
Log.Error("DirectShowUtil: FAILED: audio renderer:{0} doesnt exists", strFilterName);
return null;
}
}
// first remove all audio renderers
bool bAllRemoved = false;
bool bNeedAdd = true;
IEnumFilters enumFilters;
HResult hr = new HResult(graphBuilder.EnumFilters(out enumFilters));
if (hr >= 0 && enumFilters != null)
{
int iFetched;
enumFilters.Reset();
while (!bAllRemoved)
{
IBaseFilter[] pBasefilter = new IBaseFilter[2];
hr.Set(enumFilters.Next(1, pBasefilter, out iFetched));
if (hr < 0 || iFetched != 1 || pBasefilter[0] == null)
{
break;
}
foreach (Filter filter in Filters.AudioRenderers)
{
Guid classId1;
Guid classId2;
pBasefilter[0].GetClassID(out classId1);
//Log.Info("Filter Moniker string - " + filter.Name);
if (filter.Name == "ReClock Audio Renderer")
{
Log.Warn(
"DirectShowUtil: Reclock is installed - if this method fails, reinstall and regsvr32 /u reclock and then uninstall");
// return null;
}
try
{
NewFilter = (IBaseFilter)Marshal.BindToMoniker(filter.MonikerString);
if (NewFilter == null)
{
Log.Info("DirectShowUtil: NewFilter = null");
continue;
}
}
catch (Exception e)
{
Log.Info("DirectShowUtil: Exception in BindToMoniker({0}): {1}", filter.MonikerString, e.Message);
continue;
}
NewFilter.GetClassID(out classId2);
ReleaseComObject(NewFilter);
NewFilter = null;
if (classId1.Equals(classId2))
{
if (filter.Name == strFilterName)
{
Log.Info("DirectShowUtil: filter already in graph");
if (setAsReferenceClock)
{
hr.Set((graphBuilder as IMediaFilter).SetSyncSource(pBasefilter[0] as IReferenceClock));
if (hr != 0)
{
Log.Warn("DirectShowUtil: setAsReferenceClock sync source " + hr.ToDXString());
}
}
ReleaseComObject(pBasefilter[0]);
pBasefilter[0] = null;
bNeedAdd = false;
break;
}
else
{
Log.Info("DirectShowUtil: remove " + filter.Name + " from graph");
pinOut = FindSourcePinOf(pBasefilter[0]);
RemoveFilter(graphBuilder, pBasefilter[0]);
bAllRemoved = true;
break;
}
} //if (classId1.Equals(classId2))
} //foreach (Filter filter in filters.AudioRenderers)
if (pBasefilter[0] != null)
{
ReleaseComObject(pBasefilter[0]);
}
} //while(!bAllRemoved)
ReleaseComObject(enumFilters);
} //if (hr>=0 && enumFilters!=null)
Log.Info("DirectShowUtil: Passed removing audio renderer");
if (!bNeedAdd)
{
return null;
}
// next add the new one...
foreach (Filter filter in Filters.AudioRenderers)
{
if (String.Compare(filter.Name, strFilterName, StringComparison.OrdinalIgnoreCase) == 0)
{
Log.Info("DirectShowUtil: Passed finding Audio Renderer");
NewFilter = (IBaseFilter)Marshal.BindToMoniker(filter.MonikerString);
hr.Set(graphBuilder.AddFilter(NewFilter, strFilterName));
if (hr < 0)
{
Log.Error("DirectShowUtil: failed:unable to add filter:{0} to graph", strFilterName);
NewFilter = null;
}
else
{
Log.Debug("DirectShowUtil: added filter:{0} to graph", strFilterName);
if (pinOut != null)
{
hr.Set(graphBuilder.Render(pinOut));
if (hr == 0)
{
Log.Info("DirectShowUtil: pinout rendererd");
}
else
{
Log.Error("DirectShowUtil: failed: pinout render");
}
}
if (setAsReferenceClock)
{
hr.Set((graphBuilder as IMediaFilter).SetSyncSource(NewFilter as IReferenceClock));
if (hr != 0)
{
Log.Warn("DirectShowUtil: setAsReferenceClock sync source " + hr.ToDXString());
}
}
return NewFilter;
}
} //if (String.Compare(filter.Name,strFilterName,true) ==0)
} //foreach (Filter filter in filters.AudioRenderers)
if (NewFilter == null)
{
Log.Error("DirectShowUtil: failed filter:{0} not found", strFilterName);
}
}
catch (Exception ex)
{
Log.Error("DirectshowUtil: Failed to add filter:{0} to graph :{1} {2} {3}",
strFilterName, ex.Message, ex.Source, ex.StackTrace);
// try to detect VolumeHandler
#pragma warning disable 168
VolumeHandler vh = VolumeHandler.Instance;
#pragma warning restore 168
Log.Debug("DirectShowUtil: volume handler value {0}", vh.Volume);
// vh.Volume = 19660500 that means Audio endpoint device are not available.
// Check if new audio device is connected
VolumeHandler.Dispose();
#pragma warning disable 168
vh = VolumeHandler.Instance;
#pragma warning restore 168
}
return null;
}
public static IPin FindSourcePinOf(IBaseFilter filter)
{
int hr = 0;
IEnumPins pinEnum;
hr = filter.EnumPins(out pinEnum);
if ((hr == 0) && (pinEnum != null))
{
pinEnum.Reset();
IPin[] pins = new IPin[1];
int f;
do
{
// Get the next pin
hr = pinEnum.Next(1, pins, out f);
if ((hr == 0) && (pins[0] != null))
{
PinDirection pinDir;
pins[0].QueryDirection(out pinDir);
if (pinDir == PinDirection.Input)
{
IPin pSourcePin = null;
hr = pins[0].ConnectedTo(out pSourcePin);
if (hr >= 0)
{
ReleaseComObject(pinEnum);
return pSourcePin;
}
}
ReleaseComObject(pins[0]);
}
} while (hr == 0);
ReleaseComObject(pinEnum);
}
return null;
}
private static bool TryConnect(IGraphBuilder graphBuilder, string filtername, IPin outputPin)
{
return TryConnect(graphBuilder, filtername, outputPin, true);
}
private static bool CheckFilterIsLoaded(IGraphBuilder graphBuilder, String name)
{
int hr;
bool ret = false;
IEnumFilters enumFilters;
graphBuilder.EnumFilters(out enumFilters);
do
{
int ffetched;
IBaseFilter[] filters = new IBaseFilter[1];
hr = enumFilters.Next(1, filters, out ffetched);
if (hr == 0 && ffetched > 0)
{
FilterInfo info;
filters[0].QueryFilterInfo(out info);
ReleaseComObject(info.pGraph);
string filtername = info.achName;
ReleaseComObject(filters[0]);
if (filtername.Equals(name))
{
ret = true;
break;
}
}
else
{
break;
}
} while (true);
ReleaseComObject(enumFilters);
return ret;
}
private static bool HasConnection(IPin pin)
{
IPin pinInConnected;
int hr = pin.ConnectedTo(out pinInConnected);
if (hr != 0 || pinInConnected == null)
{
return false;
}
else
{
ReleaseComObject(pinInConnected);
return true;
}
}
private static bool TryConnect(IGraphBuilder graphBuilder, string filtername, IPin outputPin, IBaseFilter to)
{
bool ret = false;
int hr;
FilterInfo info;
PinInfo outputInfo;
to.QueryFilterInfo(out info);
ReleaseComObject(info.pGraph);
outputPin.QueryPinInfo(out outputInfo);
DsUtils.FreePinInfo(outputInfo);
if (info.achName.Equals(filtername))
{
return false; //do not connect to self
}
Log.Debug("Testing filter: {0}", info.achName);
IEnumPins enumPins;
IPin[] pins = new IPin[1];
to.EnumPins(out enumPins);
do
{
int pinsFetched;
hr = enumPins.Next(1, pins, out pinsFetched);
if (hr != 0 || pinsFetched == 0)
{
break;
}
PinDirection direction;
pins[0].QueryDirection(out direction);
if (direction == PinDirection.Input && !HasConnection(pins[0])) // && TestMediaTypes(outputPin, pins[0]))
{
PinInfo pinInfo;
pins[0].QueryPinInfo(out pinInfo);
DsUtils.FreePinInfo(pinInfo);
Log.Debug("Testing compatibility to {0}",
pinInfo.name);
//ListMediaTypes(pins[0]);
//hr = outputPin.Connect(pins[0], null);
hr = graphBuilder.ConnectDirect(outputPin, pins[0], null);
if (hr == 0)
{
Log.Debug("Connection succeeded");
if (RenderOutputPins(graphBuilder, to))
{
Log.Info("Successfully rendered pin {0}:{1} to {2}:{3}.",
filtername, outputInfo.name, info.achName, pinInfo.name);
ret = true;
ReleaseComObject(pins[0]);
break;
}
else
{
Log.Debug("Rendering got stuck. Trying next filter, and disconnecting {0}!", outputInfo.name);
outputPin.Disconnect();
pins[0].Disconnect();
}
}
else
{
Log.Debug("Could not connect, filters are not compatible: {0:x}", hr);
}
}
ReleaseComObject(pins[0]);
} while (true);
ReleaseComObject(enumPins);
if (!ret)
{
Log.Debug("Dead end. Could not successfully connect pin {0} to filter {1}!", outputInfo.name, info.achName);
}
return ret;
}
private static uint ReverseByteArrayToDWORD(Byte[] ba)
{
//Log.Info("Reversing: {0:x}{1:x}{2:x}{3:x}", ba[0], ba[1], ba[2], ba[3]);
return (uint)(((uint)ba[3] << 24) | ((uint)ba[2] << 16) | ((uint)ba[1] << 8) | ba[0]);
}
/// <summary>
/// checks if the filter has any output pins. if so, returns false, otherwise true
/// </summary>
/// <param name="filter"></param>
/// <returns>true, if the given filter is a render filter, false otherwise</returns>
private static bool IsRenderer(IBaseFilter filter)
{
IEnumPins pinEnum;
int hr = filter.EnumPins(out pinEnum);
if ((hr == 0) && (pinEnum != null))
{
try
{
//Log.Info("got pins");
pinEnum.Reset();
IPin[] pins = new IPin[1];
int iFetched;
int iPinNo = 0;
do
{
// Get the next pin
//Log.Info(" get pin:{0}",iPinNo);
iPinNo++;
hr = pinEnum.Next(1, pins, out iFetched);
if (hr == 0 && iFetched == 1)
{
//Log.Info(" find pin info");
PinDirection pinDir;
pins[0].QueryDirection(out pinDir);
if (pinDir == PinDirection.Output)
{
ReleaseComObject(pins[0]);
//we got at least one output pin, this is not a render filter
return false;
}
ReleaseComObject(pins[0]);
}
else
{
return true;
}
} while (true);
}
finally
{
ReleaseComObject(pinEnum);
}
}
//No output pins found, this is a renderer
return true;
}
private static Dictionary<Guid, Merit> _meritCache = new Dictionary<Guid, Merit>();
private static Merit GetMerit(IBaseFilter filter)
{
Guid clsid;
int hr;
hr = filter.GetClassID(out clsid);
if (hr != 0)
{
return Merit.DoNotUse;
}
//check cache
if (_meritCache.ContainsKey(clsid))
{
return _meritCache[clsid];
}
//figure new value
try
{
RegistryKey filterKey =
Registry.ClassesRoot.OpenSubKey(@"CLSID\{083863F1-70DE-11d0-BD40-00A0C911CE86}\Instance\{" + clsid.ToString() +
@"}");
if (filterKey == null)
{
Log.Debug("Could not get merit value for clsid {0}, key not found!", clsid);
_meritCache[clsid] = Merit.DoNotUse;
return Merit.DoNotUse;
}
Byte[] filterData = (Byte[])filterKey.GetValue("FilterData", 0x0);
if (filterData == null || filterData.Length < 8)
{
return Merit.DoNotUse;
}
Byte[] merit = new Byte[4];
//merit is 2nd DWORD, reverse byte order
Array.Copy(filterData, 4, merit, 0, 4);
uint dwMerit = ReverseByteArrayToDWORD(merit);
_meritCache[clsid] = (Merit)dwMerit;
return (Merit)dwMerit;
}
catch (Exception e)
{
Log.Debug("Could not get merit value for clsid {0}. Error: {1}", clsid, e.Message);
return Merit.DoNotUse;
}
}
private static void LogFilters(ArrayList filters)
{
int nr = 1;
foreach (IBaseFilter filter in filters)
{
FilterInfo i;
filter.QueryFilterInfo(out i);
Log.Debug("FILTER: {0}: {1}", nr++, i.achName);
ReleaseComObject(i.pGraph);
}
}
/// <summary>
/// Try to sort the Filters that are currently loaded by Intermediate -> Renderer
/// and then by Merit, desc.
///
/// </summary>
/// <param name="graphBuilder"></param>
/// <returns></returns>
private static ArrayList GetFilters(IGraphBuilder graphBuilder)
{
//Sources+Intermediates
ArrayList allMerits = new ArrayList();
ArrayList allFilters = new ArrayList();
//Renderers
ArrayList allMeritsR = new ArrayList();
ArrayList allFiltersR = new ArrayList();
IEnumFilters enumFilters;
graphBuilder.EnumFilters(out enumFilters);
for (;;)
{
int ffetched;
IBaseFilter[] filters = new IBaseFilter[1];
int hr = enumFilters.Next(1, filters, out ffetched);
if (hr == 0 && ffetched > 0)
{
uint m = (uint)GetMerit(filters[0]);
//substract merit from uint.maxvalue to get reverse ordering from highest merit to lowest merit
if (IsRenderer(filters[0]))
{
allMeritsR.Add(uint.MaxValue - m);
allFiltersR.Add(filters[0]);
}
else
{
allMerits.Add(uint.MaxValue - m);
allFilters.Add(filters[0]);
}
}
else
{
break;
}
}
ReleaseComObject(enumFilters);
//if someone has a better way to sort the filters by their merits, PLEASE change the following
//(i know there must be something more elegant)
Array aM = allMerits.ToArray(typeof (uint));
Array aF = allFilters.ToArray(typeof (IBaseFilter));
Array aMR = allMeritsR.ToArray(typeof (uint));
Array aFR = allFiltersR.ToArray(typeof (IBaseFilter));
Array.Sort(aM, aF);
Array.Sort(aMR, aFR);
ArrayList ret = new ArrayList();
//add all itermediate+sources first, then add renderers
ret.AddRange(aF);
ret.AddRange(aFR);
LogFilters(ret);
return ret;
}
private static void ReleaseFilters(ArrayList filters)
{
foreach (IBaseFilter filter in filters)
{
ReleaseComObject(filter);
}
}
public static bool TryConnect(IGraphBuilder graphbuilder, IBaseFilter source, Guid mediaType, string targetFilter)
{
if (string.IsNullOrEmpty(targetFilter))
return false;
bool connected = false;
IBaseFilter destination = null;
destination = AddFilterToGraph(graphbuilder, targetFilter);
if (destination == null)
return false;
if (!TryConnect(graphbuilder, source, mediaType, destination))
{
Log.Info(" - not compatible, removed");
RemoveFilter(graphbuilder, destination);
}
else
connected = true;
ReleaseComObject(destination);
destination = null;
return connected;
}
public static bool TryConnect(IGraphBuilder graphbuilder, IBaseFilter source, Guid mediaType,
IBaseFilter targetFilter)
{
bool connected = false;
IEnumPins enumPins;
int hr = source.EnumPins(out enumPins);
DsError.ThrowExceptionForHR(hr);
IPin[] pins = new IPin[1];
int fetched = 0;
while (enumPins.Next(1, pins, out fetched) == 0)
{
if (fetched != 1)
{
break;
}
PinDirection direction;
pins[0].QueryDirection(out direction);
if (direction == PinDirection.Output)
{
IEnumMediaTypes enumMediaTypes;
pins[0].EnumMediaTypes(out enumMediaTypes);
AMMediaType[] mediaTypes = new AMMediaType[20];
int fetchedTypes;
enumMediaTypes.Next(20, mediaTypes, out fetchedTypes);
for (int i = 0; i < fetchedTypes; ++i)
{
if (mediaTypes[i].majorType == mediaType)
{
if (
graphbuilder.ConnectDirect(pins[0], DsFindPin.ByDirection(targetFilter, PinDirection.Input, 0), null) >=
0)
{
connected = true;
break;
}
}
}
}
ReleaseComObject(pins[0]);
}
ReleaseComObject(enumPins);
return connected;
}
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
{
RemoveFilter(graphBuilder, f);
ReleaseComObject(f);
}
}
}
else
{
Log.Debug("Ignoring filter {0}. Already in graph.", name);
}
}
}
Log.Debug("TryConnect failed.");
return outputInfo.name.StartsWith("~");
}
public static void RenderGraphBuilderOutputPins(IGraphBuilder graphBuilder, IBaseFilter baseFilter)
{
if (graphBuilder == null)
return;
if (baseFilter != null)
RenderUnconnectedOutputPins(graphBuilder, baseFilter);
int hr = 0;
IEnumFilters enumFilters = null;
ArrayList filtersArray = new ArrayList();
hr = graphBuilder.EnumFilters(out enumFilters);
DsError.ThrowExceptionForHR(hr);
IBaseFilter[] filters = new IBaseFilter[1];
int fetched;
while (enumFilters.Next(filters.Length, filters, out fetched) == 0)
{
filtersArray.Add(filters[0]);
}
foreach (IBaseFilter filter in filtersArray)
{
if (filter != baseFilter)
{
RenderUnconnectedOutputPins(graphBuilder, filter);
}
else
{
break;
}
}
ReleaseComObject(enumFilters);
}
public static void RenderUnconnectedOutputPins(IGraphBuilder graphBuilder, IBaseFilter baseFilter)
{
if (baseFilter == null)
return;
int fetched;
IEnumPins pinEnum;
try
{
int hr = baseFilter.EnumPins(out pinEnum);
DsError.ThrowExceptionForHR(hr);
if (hr == 0 && pinEnum != null)
{
pinEnum.Reset();
IPin[] pins = new IPin[1];
while (pinEnum.Next(1, pins, out fetched) == 0 && fetched > 0)
{
PinDirection pinDir;
pins[0].QueryDirection(out pinDir);
if (pinDir == PinDirection.Output && !HasConnection(pins[0]))
{
FilterInfo i;
PinInfo pinInfo;
string pinName = string.Empty;
if (baseFilter.QueryFilterInfo(out i) == 0)
{
if (pins[0].QueryPinInfo(out pinInfo) == 0)
{
Log.Debug("Filter: {0} - try to connect: {1}", i.achName, pinInfo.name);
pinName = pinInfo.name;
DsUtils.FreePinInfo(pinInfo);
}
}
if (i.pGraph != null)
{
ReleaseComObject(i.pGraph);
}
try
{
if (pinName == "Audio")
{
try
{
if (GUIGraphicsContext.VolumeHandler == null)
{
GUIGraphicsContext.VolumeHandler = VolumeHandler.Instance;
}
// vh.Volume = 19660500 that means Audio endpoint device are not available.
if (GUIGraphicsContext.VolumeHandler != null && GUIGraphicsContext.VolumeHandler.Volume == 19660500) // Check if new audio device is connected
{
Log.Debug("DirectShowUtil: need dispose volume handler value {0}", GUIGraphicsContext.VolumeHandler.Volume);
VolumeHandler.Dispose();
GUIGraphicsContext.VolumeHandler = VolumeHandler.Instance;
}
if (GUIGraphicsContext.VolumeHandler != null && GUIGraphicsContext.VolumeHandler.Volume != 19660500 && GUIGraphicsContext.DeviceAudioConnected > 0)
{
Log.Debug("DirectShowUtil: volume handler value {0}", GUIGraphicsContext.VolumeHandler.Volume);
Log.Debug("DirectShowUtil: build the graph for PIN : {0}", pinName);
hr = graphBuilder.Render(pins[0]);
}
}
catch (Exception exception)
{
Log.Warn("DirectShowUtil: Could not initialize volume handler (don't connect Audio Pin) : {0}", exception.Message);
}
}
else
{
try
{
Log.Debug("DirectShowUtil: build the graph for PIN : {0}", pinName);
hr = graphBuilder.Render(pins[0]);
}
catch (Exception exception)
{
Log.Error("DirectShowUtil: Exception build the graph for PIN : {0}", pinName);
}
}
}