// Oprogramowanie Roman Ryltsov
H.265 / HEVC Video Decoder Media Foundation has been around for a while, but using Media Foundation overall one step off straightforward basic paths is like walking a minefield. A twenty-liner below hits memory access violation inside IMFTransform::GetInputStreamInfo “Exception thrown at 0x6D1E71E7 (hevcdecoder.dll) in MfHevcDecoder01.exe: 0xC0000005: Access violation reading location 0x00000000.”: #include “stdafx.h” #include <mfapi.h>…
Media Foundation AAC Encoder is a pure MFT, as opposed to legacy DSP’s which are made dual DMO/MFT interfaced and presumably have higher chances for smaller artifacts. The transform is synchronous and is supposed to be simpler inside: fully passive and drives by input/output calls. Nevertheles, advertising MFT_OUTPUT_STATUS_SAMPLE_READY via IMFTransform::GetOutputStatus call, if might falsely indicate…
Media Foundation Team Blog (2009-2011) lost connection with the community some time ago, and its sample code hosted at http://code.msdn.microsoft.com/mfblog passed away too. Three Four of the five samples were saved and were made back available by user mofo77, and the other two one MFSimpleEncode and MFManagedEncode are is still wanted. I put the sample…
IMFVideoProcessorControl2::EnableHardwareEffects method: Enables effects that were implemented with IDirectXVideoProcessor::VideoProcessorBlt. […] Specifies whether effects are to be enabled. TRUE specifies to enable effects. FALSE specifies to disable effects. All right, it is apparently not IDirectXVideoProcessor and MSDN link behind the identifier takes one to correct Direct3D 11 API method: ID3D11VideoContext::VideoProcessorBlt. Worse news is that having the…
Microsoft Media Foundation Media Session API topology resolution is way less clear compared to DirectShow. The API takes away a part of component connection process and makes it less transparent to API consumer. Then, while DirectShow Intelligent Connect is use scenario agnostic, Media Foundation Media Session apparently targets playback scenarios, and its topology resolution process…
Reference signal source for DirectShow in its video part already received Media Foundation Source interface earlier. This time, the update implements a separate Media Foundation source for audio. MfGenerate2 sample code gives an idea on how to initialize the source: using namespace AlaxInfoDirectShowReferenceSource; CComPtr<IAudioMediaSource> pSource; __C(pSource.CoCreateInstance(__uuidof(AudioMediaSource))); __C(pSource->SetMediaType(NULL, g_nSampleRate, g_nChannelCount, g_nBitDepth)); __C(pSource->put_Duration((DOUBLE) g_nDuration)); CComPtr<IMFMediaSource> pAudioMediaSource =…
When new formats were added, a copy/paster forgot to update column 2 in Video Subtype GUIDs – Encoded Video Types: This should have been ‘VP80’ and ‘VP90’ respectively, of course.