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microsoft / Windows-classic-samples

This repo contains samples that demonstrate the API used in Windows classic desktop applications.
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How to Get rotated image from camera with media foundation #251

Open nhl100 opened 2 years ago

nhl100 commented 2 years ago

i use the MF_MT_VIDEO_ROTATION attribute，but it does not take effect. The process is as follows: 1、hr = m_pReader->GetNativeMediaType( (DWORD)MF_SOURCE_READER_FIRST_VIDEO_STREAM, i, &pType ); 2、hr = pType->SetUINT32(MF_MT_VIDEO_ROTATION, MFVideoRotationFormat_90); 3、hr = m_pReader->SetCurrentMediaType( (DWORD)MF_SOURCE_READER_FIRST_VIDEO_STREAM, NULL, pType ); 4、hr = m_pReader->ReadSample( (DWORD)MF_SOURCE_READER_FIRST_VIDEO_STREAM, 0, NULL, NULL, NULL, NULL );

What's the problem?