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MF_MT_AUDIO_SAMPLES_PER_BLOCK attribute …
https://docs.microsoft.com/en-us/windows/win32/medfound/mf-mt-audio-samples-per-block-attribute
Number of audio samples contained in one compressed block of audio data. This attribute can be used in compressed audio formats that have a fixed number of samples within each block. MF_MT_AUDIO_SAMPLES_PER_BLOCK attribute (Mfapi.h) - …
win32/mf-mt-audio-samples-per-block-attribute.md at …
https://github.com/MicrosoftDocs/win32/blob/docs/desktop-src/medfound/mf-mt-audio-samples-per-block-attribute.md
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Media Type Attributes - Win32 apps | Microsoft Docs
https://docs.microsoft.com/en-us/windows/win32/medfound/media-type-attributes
MF_MT_AUDIO_SAMPLES_PER_SECOND can't dynamic chage
https://social.msdn.microsoft.com/Forums/windowsdesktop/en-US/4f5ab7be-eecf-42a8-b64b-67d629037ca4/mfmtaudiosamplespersecond-cant-dynamic-chage
But it should be pretty easy to do the dynamic format changes you want to do in audio: Put a resampler MFT in your topology just upstream of the output node for the audio renderer. Vista has an audio resampler availabler which you can get to through MFTEnum (category=MFT_CATEGORY_AUDIO_EFFECT). This MFT will handle a changing input type. Becky
IMFSample audio sample count - …
https://social.msdn.microsoft.com/Forums/en-US/c27df39c-1386-4b83-b128-d0ec3d8659c7/imfsample-audio-sample-count
In my example, I get a "bufferSize" of 198212 from the IMFMediaBuffer. The sample rate is 48000, 2 channels, 16 bits per sample... To get the number of samples in the IMFMediaBuffer, I devide 198212 by 8. Unfortunately this is not a whole number - …
audio - IMFTransform::ProcessOutput returns …
https://stackoverflow.com/questions/16565292/imftransformprocessoutput-returns-mf-e-transform-stream-change-for-he-aac-p
I'm trying to use the Media Foundation Transforms to convert a HE-AAC audio stream (received by live555, a RTP library), into PCM (to be played via the waveOutXxx Win32 API). However, at present I'm processing pre-recorded packets. When I call IMFTransform::ProcessOutput, it returns MF_E_TRANSFORM_STREAM_CHANGE.
audio - Does Windows Media Foundation on UWP have a ...
https://stackoverflow.com/questions/64895141/does-windows-media-foundation-on-uwp-have-a-resampler-if-so-how-do-i-use-it
Using Win32 I have access to CLSID_CResamplerMediaObject which means I can reduce my channel count from say 6 to 2.. On UWP this is no longer defined and the only reference to a resampler I can find is CLSID_AudioResamplerMediaObject.When I create an instance of this class however, and pass it my MFMediaType_Float or MFMediaType_PCM type, it says that the …
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