void BuildGraph()
{
DsDevice [] devs;
string s;
devs = DsDevice.GetDevicesOfCat(FilterCategory.AMKSTVAudio);
DsDevice dev = devs[0];
dev.Mon.GetDisplayName(null, null, out s);
m_itva = Marshal.BindToMoniker(s) as IAMTVAudio;
}
//#endif
// ---------------- Public Methods ---------------
/// <summary>
/// Dispose Tuner property
/// </summary>
new public void Dispose()
{
if (_tvTuner != null)
{
Marshal.ReleaseComObject(_tvTuner);
_tvTuner = null;
}
//#if NEWCODE
if (tvAudio != null)
{
Marshal.ReleaseComObject(tvAudio);
tvAudio = null;
}
//#endif
}
private void GetControlInterface()
{
this.tuner = null;
this.crossbar = null;
object o;
int hr = this.captureGraphBuilder.FindInterface(null, null, this.videoCaptureFilter, typeof(IAMTVTuner).GUID, out o);
if (hr >= 0)
{
this.tuner = o as IAMTVTuner;
o = null;
hr = this.captureGraphBuilder.FindInterface(null, null, this.videoCaptureFilter, typeof(IAMCrossbar).GUID, out o);
if (hr >= 0)
{
this.crossbar = o as IBaseFilter;
o = null;
}
// Use the crossbar class to help us sort out all the possible video inputs
// The class needs to be given the capture filters ANALOGVIDEO input pin
IPin pinVideo = DsFindPin.ByCategory(this.videoCaptureFilter, PinCategory.AnalogVideoIn, 0);
if (pinVideo != null)
{
try
{
this.crossbarHelper = new CrossbarHelper(pinVideo);
}
catch {}
Marshal.ReleaseComObject(pinVideo);
}
hr = this.captureGraphBuilder.FindInterface(null, null, this.videoCaptureFilter, typeof(IAMTVAudio).GUID, out o);
if (hr >= 0)
{
this.amTVAudio = o as IAMTVAudio;
o = null;
}
}
}
/// <summary>
/// Creates the filter by trying to detect it
/// </summary>
/// <param name="crossbar">The crossbar componen</param>
/// <param name="tuner">The tuner component</param>
/// <param name="graph">The stored graph</param>
/// <param name="graphBuilder">The graphBuilder</param>
/// <returns>true, if the graph building was successful</returns>
private bool CreateAutomaticFilterInstance(Graph graph, Tuner tuner, Crossbar crossbar, IFilterGraph2 graphBuilder)
{
//get all tv audio tuner devices on this system
DsDevice[] devices = null;
try
{
devices = DsDevice.GetDevicesOfCat(FilterCategory.AMKSTVAudio);
devices = DeviceSorter.Sort(devices, tuner.TunerName, crossbar.CrossBarName);
}
catch (Exception)
{
Log.Log.WriteFile("analog: AddTvAudioFilter no tv audio devices found - Trying TvTuner filter");
}
if (devices != null && devices.Length > 0)
{
// try each tv audio tuner
for (int i = 0; i < devices.Length; i++)
{
IBaseFilter tmp;
Log.Log.WriteFile("analog: AddTvAudioFilter try:{0} {1}", devices[i].Name, i);
//if tv audio tuner is currently in use we can skip it
if (DevicesInUse.Instance.IsUsed(devices[i]))
{
continue;
}
int hr;
try
{
//add tv audio tuner to graph
hr = graphBuilder.AddSourceFilterForMoniker(devices[i].Mon, null, devices[i].Name, out tmp);
}
catch (Exception)
{
Log.Log.WriteFile("analog: cannot add filter to graph");
continue;
}
if (hr != 0)
{
//failed to add tv audio tuner to graph, continue with the next one
if (tmp != null)
{
graphBuilder.RemoveFilter(tmp);
Release.ComObject("tvAudioFilter filter", tmp);
}
continue;
}
// try connecting the tv tuner-> tv audio tuner
if (FilterGraphTools.ConnectPin(graphBuilder, tuner.AudioPin, tmp, 0))
{
// Got it !
// Connect tv audio tuner to the crossbar
IPin pin = DsFindPin.ByDirection(tmp, PinDirection.Output, 0);
hr = graphBuilder.Connect(pin, crossbar.AudioTunerIn);
if (hr < 0)
{
//failed
graphBuilder.RemoveFilter(tmp);
Release.ComObject("audiotuner pinin", pin);
Release.ComObject("audiotuner filter", tmp);
}
else
{
//succeeded. we're done
Log.Log.WriteFile("analog: AddTvAudioFilter succeeded:{0}", devices[i].Name);
Release.ComObject("audiotuner pinin", pin);
_filterTvAudioTuner = tmp;
_audioDevice = devices[i];
DevicesInUse.Instance.Add(_audioDevice);
_tvAudioTunerInterface = tuner.Filter as IAMTVAudio;
break;
}
}
else
{
// cannot connect tv tuner-> tv audio tuner, try next one...
graphBuilder.RemoveFilter(tmp);
Release.ComObject("audiotuner filter", tmp);
}
}
}
if (_filterTvAudioTuner == null)
{
Log.Log.WriteFile("analog: AddTvAudioFilter no tv audio devices found - Trying TvTuner filter");
int hr = graphBuilder.Connect(tuner.AudioPin, crossbar.AudioTunerIn);
if (hr != 0)
{
Log.Log.Error("analog: unable to add TvAudioTuner to graph - even TvTuner as TvAudio fails");
mode = TvAudioVariant.Unavailable;
}
else
{
Log.Log.WriteFile("analog: AddTvAudioFilter connected TvTuner with Crossbar directly succeeded!");
mode = TvAudioVariant.TvTunerConnection;
_tvAudioTunerInterface = tuner.Filter as IAMTVAudio;
if (_tvAudioTunerInterface != null)
{
Log.Log.WriteFile("analog: AddTvAudioFilter succeeded - TvTuner is also TvAudio");
_filterTvAudioTuner = tuner.Filter;
mode = TvAudioVariant.TvTuner;
}
}
graph.TvAudio.Mode = mode;
}
else
{
mode = TvAudioVariant.Normal;
graph.TvAudio.Name = _audioDevice.Name;
}
if (mode != TvAudioVariant.Unavailable && mode != TvAudioVariant.TvTunerConnection &&
_tvAudioTunerInterface != null)
{
CheckCapabilities(graph);
}
return(true);
}
/// <summary>
/// Creates the filter by trying to detect it
/// </summary>
/// <param name="crossbar">The crossbar componen</param>
/// <param name="tuner">The tuner component</param>
/// <param name="graph">The stored graph</param>
/// <param name="graphBuilder">The graphBuilder</param>
/// <returns>true, if the graph building was successful</returns>
private bool CreateAutomaticFilterInstance(Graph graph, Tuner tuner, Crossbar crossbar, IFilterGraph2 graphBuilder)
{
//get all tv audio tuner devices on this system
DsDevice[] devices = null;
try
{
devices = DsDevice.GetDevicesOfCat(FilterCategory.AMKSTVAudio);
devices = DeviceSorter.Sort(devices, tuner.TunerName, crossbar.CrossBarName);
}
catch (Exception)
{
Log.Log.WriteFile("analog: AddTvAudioFilter no tv audio devices found - Trying TvTuner filter");
}
if (devices != null && devices.Length > 0)
{
// try each tv audio tuner
for (int i = 0; i < devices.Length; i++)
{
IBaseFilter tmp;
Log.Log.WriteFile("analog: AddTvAudioFilter try:{0} {1}", devices[i].Name, i);
//if tv audio tuner is currently in use we can skip it
if (DevicesInUse.Instance.IsUsed(devices[i]))
continue;
int hr;
try
{
//add tv audio tuner to graph
hr = graphBuilder.AddSourceFilterForMoniker(devices[i].Mon, null, devices[i].Name, out tmp);
}
catch (Exception)
{
Log.Log.WriteFile("analog: cannot add filter to graph");
continue;
}
if (hr != 0)
{
//failed to add tv audio tuner to graph, continue with the next one
if (tmp != null)
{
graphBuilder.RemoveFilter(tmp);
Release.ComObject("tvAudioFilter filter", tmp);
}
continue;
}
// try connecting the tv tuner-> tv audio tuner
if (FilterGraphTools.ConnectPin(graphBuilder, tuner.AudioPin, tmp, 0))
{
// Got it !
// Connect tv audio tuner to the crossbar
IPin pin = DsFindPin.ByDirection(tmp, PinDirection.Output, 0);
hr = graphBuilder.Connect(pin, crossbar.AudioTunerIn);
if (hr < 0)
{
//failed
graphBuilder.RemoveFilter(tmp);
Release.ComObject("audiotuner pinin", pin);
Release.ComObject("audiotuner filter", tmp);
}
else
{
//succeeded. we're done
Log.Log.WriteFile("analog: AddTvAudioFilter succeeded:{0}", devices[i].Name);
Release.ComObject("audiotuner pinin", pin);
_filterTvAudioTuner = tmp;
_audioDevice = devices[i];
DevicesInUse.Instance.Add(_audioDevice);
_tvAudioTunerInterface = tuner.Filter as IAMTVAudio;
break;
}
}
else
{
// cannot connect tv tuner-> tv audio tuner, try next one...
graphBuilder.RemoveFilter(tmp);
Release.ComObject("audiotuner filter", tmp);
}
}
}
if (_filterTvAudioTuner == null)
{
Log.Log.WriteFile("analog: AddTvAudioFilter no tv audio devices found - Trying TvTuner filter");
int hr = graphBuilder.Connect(tuner.AudioPin, crossbar.AudioTunerIn);
if (hr != 0)
{
Log.Log.Error("analog: unable to add TvAudioTuner to graph - even TvTuner as TvAudio fails");
mode = TvAudioVariant.Unavailable;
}
else
{
Log.Log.WriteFile("analog: AddTvAudioFilter connected TvTuner with Crossbar directly succeeded!");
mode = TvAudioVariant.TvTunerConnection;
_tvAudioTunerInterface = tuner.Filter as IAMTVAudio;
if (_tvAudioTunerInterface != null)
{
Log.Log.WriteFile("analog: AddTvAudioFilter succeeded - TvTuner is also TvAudio");
_filterTvAudioTuner = tuner.Filter;
mode = TvAudioVariant.TvTuner;
}
}
graph.TvAudio.Mode = mode;
}
else
{
mode = TvAudioVariant.Normal;
graph.TvAudio.Name = _audioDevice.Name;
}
if (mode != TvAudioVariant.Unavailable && mode != TvAudioVariant.TvTunerConnection &&
_tvAudioTunerInterface != null)
{
CheckCapabilities(graph);
}
return true;
}
protected override void Decompose()
{
if (this.graphBuilder != null)
{
int hr = 0;
OnGraphEnded();
// Decompose the graph
try { hr = (this.graphBuilder as IMediaControl).StopWhenReady(); }
catch { }
try { hr = (this.graphBuilder as IMediaControl).Stop(); }
catch { }
RemoveHandlers();
FilterGraphTools.RemoveAllFilters(this.graphBuilder);
if (this.crossbarHelper != null)
{
this.crossbarHelper.Dispose();
}
this.crossbarHelper = null;
if (this.tuner != null)
{
Marshal.ReleaseComObject(this.tuner);
}
this.tuner = null;
if (this.amTVAudio != null)
{
Marshal.ReleaseComObject(this.amTVAudio);
}
this.amTVAudio = null;
if (this.crossbar != null)
{
Marshal.ReleaseComObject(this.crossbar);
}
this.crossbar = null;
if (this.videoCaptureFilter != null)
{
Marshal.ReleaseComObject(this.videoCaptureFilter);
}
this.videoCaptureFilter = null;
if (this.audioCaptureFilter != null)
{
Marshal.ReleaseComObject(this.audioCaptureFilter);
}
this.audioCaptureFilter = null;
if (this.audioRenderer != null)
{
Marshal.ReleaseComObject(this.audioRenderer);
}
this.audioRenderer = null;
if (this.videoRenderer != null)
{
Marshal.ReleaseComObject(this.videoRenderer);
}
this.videoRenderer = null;
if (this.captureGraphBuilder != null)
{
Marshal.ReleaseComObject(this.captureGraphBuilder);
}
this.captureGraphBuilder = null;
if (useWPF)
{
WPFStop();
}
try { rot.Dispose(); }
catch { }
try { Marshal.ReleaseComObject(this.graphBuilder); this.graphBuilder = null; }
catch { }
}
}
private void GetControlInterface()
{
this.tuner = null;
this.crossbar = null;
object o;
int hr = this.captureGraphBuilder.FindInterface(null, null, this.videoCaptureFilter, typeof(IAMTVTuner).GUID, out o);
if (hr >= 0)
{
this.tuner = o as IAMTVTuner;
o = null;
hr = this.captureGraphBuilder.FindInterface(null, null, this.videoCaptureFilter, typeof(IAMCrossbar).GUID, out o);
if (hr >= 0)
{
this.crossbar = o as IBaseFilter;
o = null;
}
// Use the crossbar class to help us sort out all the possible video inputs
// The class needs to be given the capture filters ANALOGVIDEO input pin
IPin pinVideo = DsFindPin.ByCategory(this.videoCaptureFilter, PinCategory.AnalogVideoIn, 0);
if (pinVideo != null)
{
try
{
this.crossbarHelper = new CrossbarHelper(pinVideo);
}
catch{}
Marshal.ReleaseComObject(pinVideo);
}
hr = this.captureGraphBuilder.FindInterface(null, null, this.videoCaptureFilter, typeof(IAMTVAudio).GUID, out o);
if (hr >= 0)
{
this.amTVAudio = o as IAMTVAudio;
o = null;
}
}
}
protected override void Decompose()
{
if (this.graphBuilder != null)
{
int hr = 0;
OnGraphEnded();
// Decompose the graph
try { hr = (this.graphBuilder as IMediaControl).StopWhenReady(); }
catch { }
try { hr = (this.graphBuilder as IMediaControl).Stop(); }
catch { }
RemoveHandlers();
FilterGraphTools.RemoveAllFilters(this.graphBuilder);
if (this.crossbarHelper != null) this.crossbarHelper.Dispose(); this.crossbarHelper = null;
if (this.tuner != null) Marshal.ReleaseComObject(this.tuner); this.tuner = null;
if (this.amTVAudio != null) Marshal.ReleaseComObject(this.amTVAudio); this.amTVAudio = null;
if (this.crossbar != null) Marshal.ReleaseComObject(this.crossbar); this.crossbar = null;
if (this.videoCaptureFilter != null) Marshal.ReleaseComObject(this.videoCaptureFilter); this.videoCaptureFilter = null;
if (this.audioCaptureFilter != null) Marshal.ReleaseComObject(this.audioCaptureFilter); this.audioCaptureFilter = null;
if (this.audioRenderer != null) Marshal.ReleaseComObject(this.audioRenderer); this.audioRenderer = null;
if (this.videoRenderer != null) Marshal.ReleaseComObject(this.videoRenderer); this.videoRenderer = null;
if (this.captureGraphBuilder != null) Marshal.ReleaseComObject(this.captureGraphBuilder); this.captureGraphBuilder = null;
if (useWPF)
WPFStop();
try { rot.Dispose(); }
catch { }
try { Marshal.ReleaseComObject(this.graphBuilder); this.graphBuilder = null; }
catch { }
}
}
