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IMemAllocatorNotifyCallbackTemp interface (strmif.h)

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[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

[IMemAllocatorNotifyCallbackTemp is available for use in the operating

systems specified in the Requirements section. It may be altered or unavailable in

subsequent versions.]

The IMemAllocatorNotifyCallbackTemp interface enables a filter to receive a callback notification from an allocator whenever a sample is returned to the allocator's free list. To receive callbacks, the filter must implement this interface. For more information, see IMemAllocatorCallbackTemp Interface.

Inheritance

The IMemAllocatorNotifyCallbackTemp interface inherits from the IUnknown interface. IMemAllocatorNotifyCallbackTemp also has these types of members:

Methods

The IMemAllocatorNotifyCallbackTemp interface has these methods.

 
IMemAllocatorNotifyCallbackTemp::NotifyRelease

The NotifyRelease method is called whenever the allocator's IMemAllocator::ReleaseBuffer method is called. The ReleaseBuffer method returns a media sample to the allocator's free list. Samples call this method when their reference counts reach zero.

Requirements

Requirement Value
Minimum supported client Windows 2000 Professional [desktop apps only]
Minimum supported server Windows 2000 Server [desktop apps only]
Target Platform Windows
Header strmif.h (include Dshow.h)