MediaSource* MediaSource::Open(PCWSTR url)
{
MF_OBJECT_TYPE ObjectType = MF_OBJECT_INVALID;
IMFSourceResolver* mfSourceResolver = nullptr;
IMFMediaSource* mfMediaSource = nullptr;
IUnknown* pSource = nullptr;
// Create the source resolver.
HRESULT hr = MFCreateSourceResolver(&mfSourceResolver);
// Use the source resolver to create the media source.
hr = mfSourceResolver->CreateObjectFromURL(
url, // URL of the source.
MF_RESOLUTION_MEDIASOURCE, // Create a source object.
nullptr, // Optional property store.
&ObjectType, // Receives the created object type.
&pSource // Receives a pointer to the media source.
);
// Get the IMFMediaSource interface from the media source.
hr = pSource->QueryInterface(IID_PPV_ARGS(&mfMediaSource));
if (pSource) pSource->Release();
if (mfSourceResolver) mfSourceResolver->Release();
return new MediaSource(mfMediaSource);
}
/** Opens file from memory */
FIntPoint FImfVideoPlayer::OpenFile( void* FileSource, int32 Size, ECodecMovie::Type CodecType, FImfSampleGrabberCallback* SampleGrabberCallback )
{
FIntPoint OutDimensions = FIntPoint::ZeroValue;
HRESULT HResult = S_OK;
/* Create Media Session */
HResult = MFCreateMediaSession( NULL, &MediaSession );
check( SUCCEEDED( HResult ) );
/* Begin Get Event */
HResult = MediaSession->BeginGetEvent( this, NULL );
check( SUCCEEDED( HResult ) );
IMFSourceResolver* SourceResolver = NULL;
IUnknown* Source = NULL;
/* Create Source Resolver */
HResult = MFCreateSourceResolver( &SourceResolver );
check( SUCCEEDED( HResult ) );
/* Determine codec type */
FString Ext = ".null";
switch( CodecType )
{
case ECodecMovie::CodecMovie_Wmv:
Ext = ".wmv";
break;
/* Currently not working */
case ECodecMovie::CodecMovie_Mp4:
Ext = ".mp4";
break;
case ECodecMovie::CodecMovie_Avi:
Ext = ".avi";
break;
}
/* Create custom ByteStream */
FImfByteStream* NewByteStream = new FImfByteStream( FileSource, Size );
/* Create Media Source */
MF_OBJECT_TYPE ObjectType = MF_OBJECT_INVALID;
HResult = SourceResolver->CreateObjectFromByteStream( NewByteStream, *Ext, MF_RESOLUTION_MEDIASOURCE, NULL, &ObjectType, &Source );
SourceResolver->Release( );
if( SUCCEEDED( HResult ) )
{
HResult = Source->QueryInterface( IID_PPV_ARGS( &MediaSource ) );
Source->Release( );
/* Set Playback Topology */
OutDimensions = SetPlaybackTopology( SampleGrabberCallback );
}
else
{
/* Failed */
MovieIsFinished.Set( 1 );
}
return OutDimensions;
}
