Tag: Windows API

NVIDIA H.264 Encoder Media Foundation Transform’s REGDB_E_CLASSNOTREG

Posted on January 22, 2018 by Roman

For already years Nvidia’s H.264 video encoder Media Foundation Transform has been broken giving REGDB_E_CLASSNOTREG “Class not registered” failure in certain circumstances, like main display is not the one connected to Nvidia video adapter. As simple as this: CoInitialize(NULL); MFStartup(MF_VERSION); class __declspec(uuid(“{60F44560-5A20-4857-BFEF-D29773CB8040}”)) CFoo; // NVIDIA H.264 Encoder MFT CComPtr<IMFTransform> pTransform; const HRESULT nCoCreateInstanceResult = pTransform.CoCreateInstance(__uuidof(CFoo));…

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H.265/HEVC Video Decoder issues in Windows 10 Fall Creators Update

Posted on November 15, 2017January 2, 2018 by Roman

Microsoft released new Windows 10 update and again there is a new tsunami approaching. Media Foundation H.265 decoder: there is no longer “preliminary documentation” notice in MSDN article. The decoder is a substandard quality software item but it covers more or less what it has to. In particular, it indeed backs H.265 video playback including…

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Greetings from H.265 / HEVC Video Decoder Media Foundation Transform

Posted on September 25, 2017 by Roman

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>…

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Microsoft AAC Encoder’s MF_E_TRANSFORM_NEED_MORE_INPUT after MFT_OUTPUT_STATUS_SAMPLE_READY

Posted on August 13, 2017 by Roman

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…

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Microsoft Media Foundation code samples online

Posted on July 22, 2017January 17, 2020 by Roman

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…

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Effects of IMFVideoProcessorControl2::EnableHardwareEffects

Posted on July 20, 2017July 20, 2017 by Roman

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…

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No conversion with MF_CONNECT_ALLOW_CONVERTER

Posted on July 19, 2017July 20, 2017 by Roman

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,Â Media Foundation Media Session apparently targets playback scenarios, and its topology resolution process…

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