/// <summary>
/// Remove the specified branch from the splitter.
/// </summary>
/// <param name="payload"></param>
private void RemoveFiltersDownstreamFromSplitter(PayloadType payload)
{
if (dvSplitter != null) {
if (payload == PayloadType.dynamicAudio) {
RemoveFiltersDownstreamFromPin(splitterAudioOut);
audioCompressor = null;
}
else if (payload == PayloadType.dynamicVideo) {
RemoveFiltersDownstreamFromPin(splitterVideoOut);
videoCompressor = null;
}
}
}
/// <summary>
/// The compressor could be audio or video. If there is already an existing compressor of the
/// given type, remove it and any downstream filters before adding the given compressor.
/// The graph my not yet contain a DV Splitter, in which case, add the splitter first.
/// </summary>
/// <param name="fiCompressor"></param>
public override void AddCompressor(FilterInfo fiCompressor)
{
Stop();
if (!AddDVSplitter()) {
throw new ApplicationException("Failed to add DV Splitter Filter");
}
if (fiCompressor.Category.Equals(Filter.CLSID_AudioCompressorCategory)) {
if (audioCompressor != null) {
RemoveFiltersDownstreamFromPin(splitterAudioOut);
RemoveAndDispose(audioCompressor);
audioCompressor = null;
}
audioCompressor = (Compressor)Filter.CreateFilter(fiCompressor);
iGB.AddFilter(audioCompressor.BaseFilter, audioCompressor.FriendlyName);
audioCompressor.AddedToGraph(fgm);
compressor = audioCompressor;
_AMMediaType[] mts = Pin.GetMediaTypes(splitterAudioOut);
//Returns one DVInfo mt.
foreach (_AMMediaType mt in mts) {
Debug.WriteLine(MediaType.Dump(mt));
}
try {
iGB.Connect(this.splitterAudioOut, audioCompressor.InputPin);
}
catch (COMException) {
RemoveAndDispose(audioCompressor);
audioCompressor = null;
throw;
}
}
else if (fiCompressor.Category.Equals(Filter.CLSID_VideoCompressorCategory)) {
if (videoCompressor != null) {
RemoveFiltersDownstreamFromPin(splitterVideoOut);
RemoveAndDispose(videoCompressor);
videoCompressor = null;
}
videoCompressor = (Compressor)Filter.CreateFilter(fiCompressor);
iGB.AddFilter(videoCompressor.BaseFilter, videoCompressor.FriendlyName);
videoCompressor.AddedToGraph(fgm);
compressor = videoCompressor;
try {
iGB.Connect(this.splitterVideoOut, videoCompressor.InputPin);
}
catch (COMException) {
RemoveAndDispose(videoCompressor);
videoCompressor = null;
throw;
}
}
}
public virtual void AddCompressor(FilterInfo fiCompressor)
{
RemoveCompressor();
compressor = (Compressor)Filter.CreateFilter(fiCompressor);
iGB.AddFilter(compressor.BaseFilter, compressor.FriendlyName);
compressor.AddedToGraph(fgm); // Chooses input pin
try
{
iGB.Connect(source.OutputPin, compressor.InputPin);
}
catch(COMException)
{
RemoveCompressor();
throw;
}
}
private void DisposeCompressor()
{
if(compressor != null)
{
compressor.Dispose();
compressor = null;
}
}
public virtual void AddCompressor(FilterInfo fiCompressor)
{
RemoveCompressor();
compressor = (Compressor)Filter.CreateFilter(fiCompressor);
iGB.AddFilter(compressor.BaseFilter, compressor.FriendlyName);
compressor.AddedToGraph(fgm); // Chooses input pin
Dictionary<string, Object> args = new Dictionary<string, object>();
args.Add("SourceFilter", source);
compressor.PreConnectConfig(args);
try
{
iGB.Connect(source.OutputPin, compressor.InputPin);
}
catch(COMException)
{
RemoveCompressor();
throw;
}
}
