public static void RemoveAllFilters()
{
int hr = 0;
DirectShowLib.IEnumFilters enumFilters;
System.Collections.ArrayList filtersArray = new System.Collections.ArrayList();
hr = graph.EnumFilters(out enumFilters);
DsError.ThrowExceptionForHR(hr);
DirectShowLib.IBaseFilter[] filters = new DirectShowLib.IBaseFilter[1];
int fetched;
while (enumFilters.Next(filters.Length, filters, out fetched) == 0)
{
filtersArray.Add(filters[0]);
}
foreach (DirectShowLib.IBaseFilter filter in filtersArray)
{
hr = graph.RemoveFilter(filter);
while (System.Runtime.InteropServices.Marshal.ReleaseComObject(filter) > 0)
{
;
}
}
}
private List <SelectableMediaStream> GetStreams()
{
var streams = new List <SelectableMediaStream>();
IEnumFilters enumFilters;
var hr = m_graph.EnumFilters(out enumFilters);
DsError.ThrowExceptionForHR(hr);
var filters = new DirectShowLib.IBaseFilter[1];
while (enumFilters.Next(filters.Length, filters, IntPtr.Zero) == 0)
{
FilterInfo filterInfo;
hr = filters[0].QueryFilterInfo(out filterInfo);
DsError.ThrowExceptionForHR(hr);
Guid cl;
filters[0].GetClassID(out cl);
if (filterInfo.pGraph != null)
{
Marshal.ReleaseComObject(filterInfo.pGraph);
}
var iss = filters[0] as IAMStreamSelect;
if (iss != null)
{
int count;
hr = iss.Count(out count);
DsError.ThrowExceptionForHR(hr);
for (int i = 0; i < count; i++)
{
DirectShowLib.AMMediaType type;
AMStreamSelectInfoFlags flags;
int plcid, pwdGrp; // language
String pzname;
object ppobject, ppunk;
hr = iss.Info(i, out type, out flags, out plcid, out pwdGrp, out pzname, out ppobject, out ppunk);
DsError.ThrowExceptionForHR(hr);
if (ppobject != null)
{
Marshal.ReleaseComObject(ppobject);
}
if (type != null)
{
DsUtils.FreeAMMediaType(type);
}
if (ppunk != null)
{
Marshal.ReleaseComObject(ppunk);
}
if (pwdGrp == 2)
{
if (_grp2Selector == Guid.Empty)
{
filters[0].GetClassID(out _grp2Selector);
}
var stream = new SelectableMediaStream
{
Index = i,
Name = pzname,
Type = MediaStreamType.Subtitle
};
if ((AMStreamSelectInfoFlags.Enabled & flags) == AMStreamSelectInfoFlags.Enabled)
{
stream.IsActive = true;
}
streams.Add(stream);
}
if (pwdGrp == 1)
{
if (_audioSelector == Guid.Empty)
{
filters[0].GetClassID(out _audioSelector);
}
var stream = new SelectableMediaStream
{
Index = i,
Name = pzname,
Type = MediaStreamType.Audio
};
if ((AMStreamSelectInfoFlags.Enabled & flags) == AMStreamSelectInfoFlags.Enabled)
{
stream.IsActive = true;
}
streams.Add(stream);
}
if (pwdGrp == 6590033)
{
if (_vobsubSelector == Guid.Empty)
{
filters[0].GetClassID(out _vobsubSelector);
}
var stream = new SelectableMediaStream
{
Index = i,
Name = pzname,
Type = MediaStreamType.Subtitle,
Identifier = "Vobsub"
};
if ((AMStreamSelectInfoFlags.Enabled & flags) == AMStreamSelectInfoFlags.Enabled)
{
stream.IsActive = true;
}
streams.Add(stream);
}
}
}
Marshal.ReleaseComObject(filters[0]);
}
Marshal.ReleaseComObject(enumFilters);
return(streams);
}
