// Oprogramowanie Roman Ryltsov
It looks like as primitive call as IMFPresentationClock::GetCorrelatedTime can deadlock entire pipeline due to an issue in Media Foundation core. There are no symbols available for mfcore.dll so I would assume they have a global critical section there which is inaccurately used. In any event the problem looks like an API bug, and severe one…
A few years ago the question was already asked: DirectShow Spy: Who Sent EC_ERRORABORT?. The spy already attempted to log a call stack in order to identify the sender of the message. However overtime the tracing capability stopped functioning. There were a few reasons and limitations of internal stack unwinder specifically resulted in inability to…
This is basically a cross-post of StackOverflow answer: How do I encode raw 48khz/32bits PCM to FLAC using Microsoft Media Foundation? So, Microsoft introduced a FLAC Media Foundation Transform (MFT) Encoder CLSID_CMSFLACEncMFT in Windows 10, but the codec remains undocumented at the moment. Supported Media Formats in Media Foundation is similarly out of date and…
Being complicated for many things, Media Foundation is still quite simple for the basics. To capture video with Media Foundation the API offers Source Reader API which uses Media Foundation primitives to build a pipeline that manages origin of the data (not necessarily a live source as in this example, but can also be a…
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));…
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…
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>…