public MediaUriPlayer()
{
LAVFilterDirectory = "./";
Splitter = new FilterName("LAV Splitter", ClassId.LAVFilter, "LAVSplitter.ax");
SplitterSource = new FilterName("LAV Splitter Source", ClassId.LAVFilterSource, "LAVSplitter.ax");
VideoDecoder = new FilterName("LAV Video Decoder", ClassId.LAVFilterVideo, "LAVVideo.ax");
AudioDecoder = new FilterName("LAV Audio Decoder", ClassId.LAVFilterAudio, "LAVAudio.ax");
}
public static IBaseFilter AddFilterToGraph(IGraphBuilder graphBuilder, FilterName filterName, string baseDir, Guid clsid)
{
if (String.IsNullOrEmpty(filterName.Name))
{
return(null);
}
try
{
IBaseFilter NewFilter = null;
// use local lib
if (!String.IsNullOrEmpty(filterName.Filename) && filterName.CLSID != Guid.Empty)
{
string dllPath = Path.Combine(baseDir, filterName.Filename);
NewFilter = FilterFromFile.LoadFilterFromDll(dllPath, filterName.CLSID,
!Path.IsPathRooted(dllPath));
}
// or try load from system
if (NewFilter == null)
{
foreach (Filter filter in Filters.LegacyFilters)
{
if (String.Compare(filter.Name, filterName.Name, true) == 0 &&
(clsid == Guid.Empty || filter.CLSID == clsid))
{
NewFilter = (IBaseFilter)Marshal.BindToMoniker(filter.MonikerString);
}
}
}
int hr = graphBuilder.AddFilter(NewFilter, filterName.Name);
if (hr < 0)
{
log.Error("Unable to add filter: {0} to graph", filterName);
NewFilter = null;
}
else
{
log.Debug("Added filter: {0} to graph", filterName);
}
if (NewFilter == null)
{
log.Error("Failed filter: {0} not found", filterName);
}
return(NewFilter);
}
catch (Exception ex)
{
log.Error(ex, "Error adding filter: {0} to graph", filterName);
return(null);
}
}
public MediaUriPlayer()
{
LAVFilterDirectory = "./";
//we are going to use this source for playback because it does not lock the file
AsyncFileSource = new FilterName("System AsyncFileSource", ClassId.FilesyncSource, "Not applicable");
//we are only using this source for determine if stream has video(bool HasVideo) NOT for playback
// because this source locks the file
SplitterSource = new FilterName("LAV Splitter Source", ClassId.LAVFilterSource, "LAVSplitter.ax");
Splitter = new FilterName("LAV Splitter", ClassId.LAVFilter, "LAVSplitter.ax");
VideoDecoder = new FilterName("LAV Video Decoder", ClassId.LAVFilterVideo, "LAVVideo.ax");
AudioDecoder = new FilterName("LAV Audio Decoder", ClassId.LAVFilterAudio, "LAVAudio.ax");
}
protected virtual void InsertAudioFilter(IBaseFilter sourceFilter, FilterName audioDecoder)
{
if (audioDecoder.CLSID == Guid.Empty)
{
return;
}
// Set Audio Codec
// Remove Pin
var audioPinFrom = DirectShowLib.DsFindPin.ByName(sourceFilter, "Audio");
IPin audioPinTo;
if (audioPinFrom != null)
{
int hr = audioPinFrom.ConnectedTo(out audioPinTo);
if (hr >= 0 && audioPinTo != null)
{
PinInfo pInfo;
audioPinTo.QueryPinInfo(out pInfo);
FilterInfo fInfo;
pInfo.filter.QueryFilterInfo(out fInfo);
DirectShowUtil.DisconnectAllPins(m_graph, pInfo.filter);
m_graph.RemoveFilter(pInfo.filter);
DsUtils.FreePinInfo(pInfo);
Marshal.ReleaseComObject(fInfo.pGraph);
Marshal.ReleaseComObject(audioPinTo);
audioPinTo = null;
}
Marshal.ReleaseComObject(audioPinFrom);
audioPinFrom = null;
}
DirectShowUtil.AddFilterToGraph(m_graph, audioDecoder, LAVFilterDirectory, Guid.Empty);
}
