private void PlatformInitialize()
{
// The GUID is specified in a GuidAttribute attached to the class
AudioStreamVolumeGuid = Guid.Parse(
((GuidAttribute)typeof(AudioStreamVolume).GetCustomAttributes(typeof(GuidAttribute), false)[0]).Value);
MediaManagerState.CheckStartup();
MediaFactory.CreateMediaSession(null, out _session);
}
private void PlatformInitialize()
{
if (Topology != null)
{
return;
}
MediaManagerState.CheckStartup();
MediaFactory.CreateTopology(out _topology);
MediaSource mediaSource;
{
using (var resolver = new SourceResolver())
using (var source = (ComObject)resolver.CreateObjectFromURL(
FileName, SourceResolverFlags.MediaSource, null, out _))
{
mediaSource = source.QueryInterface <MediaSource>();
}
}
mediaSource.CreatePresentationDescriptor(out PresentationDescriptor presDesc);
for (int i = 0; i < presDesc.StreamDescriptorCount; i++)
{
presDesc.GetStreamDescriptorByIndex(
i, out SharpDX.Mathematics.Interop.RawBool selected, out StreamDescriptor desc);
if (selected)
{
MediaFactory.CreateTopologyNode(TopologyType.SourceStreamNode, out TopologyNode sourceNode);
sourceNode.Set(TopologyNodeAttributeKeys.Source, mediaSource);
sourceNode.Set(TopologyNodeAttributeKeys.PresentationDescriptor, presDesc);
sourceNode.Set(TopologyNodeAttributeKeys.StreamDescriptor, desc);
MediaFactory.CreateTopologyNode(TopologyType.OutputNode, out TopologyNode outputNode);
var majorType = desc.MediaTypeHandler.MajorType;
if (majorType == MediaTypeGuids.Video)
{
SampleGrabber = new VideoSampleGrabber();
_mediaType = new MediaType();
_mediaType.Set(MediaTypeAttributeKeys.MajorType, MediaTypeGuids.Video);
// Specify that we want the data to come in as RGB32.
_mediaType.Set(MediaTypeAttributeKeys.Subtype, new Guid("00000016-0000-0010-8000-00AA00389B71"));
MediaFactory.CreateSampleGrabberSinkActivate(_mediaType, SampleGrabber, out Activate activate);
outputNode.Object = activate;
}
if (majorType == MediaTypeGuids.Audio)
{
MediaFactory.CreateAudioRendererActivate(out Activate activate);
outputNode.Object = activate;
}
_topology.AddNode(sourceNode);
_topology.AddNode(outputNode);
sourceNode.ConnectOutput(0, outputNode, 0);
sourceNode.Dispose();
outputNode.Dispose();
}
desc.Dispose();
}
presDesc.Dispose();
mediaSource.Dispose();
}
private void PlatformInitialize(string fileName)
{
if (_topology != null)
{
return;
}
MediaManagerState.CheckStartup();
MediaFactory.CreateTopology(out _topology);
SharpDX.MediaFoundation.MediaSource mediaSource;
{
SourceResolver resolver = new SourceResolver();
ComObject source = resolver.CreateObjectFromURL(FilePath, SourceResolverFlags.MediaSource);
mediaSource = source.QueryInterface <SharpDX.MediaFoundation.MediaSource>();
resolver.Dispose();
source.Dispose();
}
mediaSource.CreatePresentationDescriptor(out PresentationDescriptor presDesc);
for (var i = 0; i < presDesc.StreamDescriptorCount; i++)
{
presDesc.GetStreamDescriptorByIndex(i, out SharpDX.Mathematics.Interop.RawBool selected, out StreamDescriptor desc);
if (selected)
{
MediaFactory.CreateTopologyNode(TopologyType.SourceStreamNode, out TopologyNode sourceNode);
sourceNode.Set(TopologyNodeAttributeKeys.Source, mediaSource);
sourceNode.Set(TopologyNodeAttributeKeys.PresentationDescriptor, presDesc);
sourceNode.Set(TopologyNodeAttributeKeys.StreamDescriptor, desc);
MediaFactory.CreateTopologyNode(TopologyType.OutputNode, out TopologyNode outputNode);
var typeHandler = desc.MediaTypeHandler;
var majorType = typeHandler.MajorType;
if (majorType != MediaTypeGuids.Audio)
{
throw new NotSupportedException("The song contains video data!");
}
MediaFactory.CreateAudioRendererActivate(out Activate activate);
outputNode.Object = activate;
_topology.AddNode(sourceNode);
_topology.AddNode(outputNode);
sourceNode.ConnectOutput(0, outputNode, 0);
sourceNode.Dispose();
outputNode.Dispose();
typeHandler.Dispose();
activate.Dispose();
}
desc.Dispose();
}
presDesc.Dispose();
mediaSource.Dispose();
}
