/// <summary>
/// Populate the collection by looking for commonly implemented property pages
/// </summary>
/// <param name="graphBuilder"></param>
/// <param name="videoDeviceFilter"></param>
/// <param name="audioDeviceFilter"></param>
/// <param name="videoCompressorFilter"></param>
/// <param name="audioCompressorFilter"></param>
/// <param name="videoSources"></param>
/// <param name="audioSources"></param>
protected void addFromGraph(
ICaptureGraphBuilder2 graphBuilder,
IBaseFilter videoDeviceFilter, IBaseFilter audioDeviceFilter,
IBaseFilter videoCompressorFilter, IBaseFilter audioCompressorFilter,
SourceCollection videoSources, SourceCollection audioSources)
{
object filter = null;
Guid cat;
Guid med;
Guid iid;
int hr;
// 1. the video capture filter
addIfSupported(videoDeviceFilter, "Video Capture Device");
// 2. the video capture pin
cat = PinCategory.Capture;
med = MediaType.Interleaved;
iid = typeof(IAMStreamConfig).GUID;
hr = graphBuilder.FindInterface(
cat, med, videoDeviceFilter, iid, out filter);
if (hr != 0)
{
med = MediaType.Video;
hr = graphBuilder.FindInterface(
cat, med, videoDeviceFilter, iid, out filter);
if (hr != 0)
{
filter = null;
}
}
addIfSupported(filter, "Video Capture Pin");
// 3. the video preview pin
cat = PinCategory.Preview;
med = MediaType.Interleaved;
iid = typeof(IAMStreamConfig).GUID;
hr = graphBuilder.FindInterface(
cat, med, videoDeviceFilter, iid, out filter);
if (hr != 0)
{
med = MediaType.Video;
hr = graphBuilder.FindInterface(
cat, med, videoDeviceFilter, iid, out filter);
if (hr != 0)
{
filter = null;
}
}
addIfSupported(filter, "Video Preview Pin");
// 4. the video crossbar(s)
ArrayList crossbars = new ArrayList();
int num = 1;
for (int c = 0; c < videoSources.Count; c++)
{
CrossbarSource s = videoSources[c] as CrossbarSource;
if (s != null)
{
if (crossbars.IndexOf(s.Crossbar) < 0)
{
crossbars.Add(s.Crossbar);
if (addIfSupported(s.Crossbar, "Video Crossbar " + (num == 1 ? "" : num.ToString())))
{
num++;
}
}
}
}
crossbars.Clear();
// 5. the video compressor
addIfSupported(videoCompressorFilter, "Video Compressor");
// 6. the video TV tuner
cat = PinCategory.Capture;
med = MediaType.Interleaved;
iid = typeof(IAMTVTuner).GUID;
hr = graphBuilder.FindInterface(
cat, med, videoDeviceFilter, iid, out filter);
if (hr != 0)
{
med = MediaType.Video;
hr = graphBuilder.FindInterface(
cat, med, videoDeviceFilter, iid, out filter);
if (hr != 0)
{
filter = null;
}
}
addIfSupported(filter, "TV Tuner");
// 7. the video compressor (VFW)
IAMVfwCompressDialogs compressDialog = videoCompressorFilter as IAMVfwCompressDialogs;
if (compressDialog != null)
{
VfwCompressorPropertyPage page = new VfwCompressorPropertyPage("Video Compressor", compressDialog);
InnerList.Add(page);
}
// 8. the audio capture filter
addIfSupported(audioDeviceFilter, "Audio Capture Device");
// 9. the audio capture pin
cat = PinCategory.Capture;
med = MediaType.Audio;
iid = typeof(IAMStreamConfig).GUID;
hr = graphBuilder.FindInterface(
cat, med, audioDeviceFilter, iid, out filter);
if (hr != 0)
{
filter = null;
}
addIfSupported(filter, "Audio Capture Pin");
// 9. the audio preview pin
cat = PinCategory.Preview;
med = MediaType.Audio;
iid = typeof(IAMStreamConfig).GUID;
hr = graphBuilder.FindInterface(
cat, med, audioDeviceFilter, iid, out filter);
if (hr != 0)
{
filter = null;
}
addIfSupported(filter, "Audio Preview Pin");
// 10. the audio crossbar(s)
num = 1;
for (int c = 0; c < audioSources.Count; c++)
{
CrossbarSource s = audioSources[c] as CrossbarSource;
if (s != null)
{
if (crossbars.IndexOf(s.Crossbar) < 0)
{
crossbars.Add(s.Crossbar);
if (addIfSupported(s.Crossbar, "Audio Crossbar " + (num == 1 ? "" : num.ToString())))
{
num++;
}
}
}
}
crossbars.Clear();
// 11. the audio compressor
addIfSupported(audioCompressorFilter, "Audio Compressor");
}