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NF:mftransform.IMFTransform.GetStreamLimits |
IMFTransform::GetStreamLimits (mftransform.h) |
Gets the minimum and maximum number of input and output streams for this Media Foundation transform (MFT). |
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mf\imftransform_getstreamlimits.htm |
mf |
4d9585f0-5818-4e7f-925c-4c50ae6a6edc |
12/05/2018 |
4d9585f0-5818-4e7f-925c-4c50ae6a6edc, GetStreamLimits, GetStreamLimits method [Media Foundation], GetStreamLimits method [Media Foundation],IMFTransform interface, IMFTransform interface [Media Foundation],GetStreamLimits method, IMFTransform.GetStreamLimits, IMFTransform::GetStreamLimits, mf.imftransform_getstreamlimits, mftransform/IMFTransform::GetStreamLimits |
mftransform.h |
Windows |
Windows Vista [desktop apps \| UWP apps] |
Windows Server 2008 [desktop apps \| UWP apps] |
Mfuuid.lib |
Windows |
19H1 |
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Gets the minimum and maximum number of input and output streams for this Media Foundation transform (MFT).
Receives the minimum number of input streams.
Receives the maximum number of input streams. If there is no maximum, receives the value MFT_STREAMS_UNLIMITED.
Receives the minimum number of output streams.
Receives the maximum number of output streams. If there is no maximum, receives the value MFT_STREAMS_UNLIMITED.
If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.
If the MFT has a fixed number of streams, the minimum and maximum values are the same.
It is not recommended to create an MFT that supports zero inputs or zero outputs. An MFT with no inputs or no outputs may not be compatible with the rest of the Media Foundation pipeline. You should create a Media Foundation sink or source for this purpose instead.
When an MFT is first created, it is not guaranteed to have the minimum number of streams. To find the actual number of streams, call IMFTransform::GetStreamCount.
This method should not be called with NULL parameters, although in practice some implementations may allow NULL parameters.
If MFT_UNIQUE_METHOD_NAMES is defined before including mftransform.h, this method is renamed MFTGetStreamLimits. See Creating Hybrid DMO/MFT Objects.