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NS:strmif._AllocatorProperties |
ALLOCATOR_PROPERTIES (strmif.h) |
The ALLOCATOR_PROPERTIES structure describes an allocator's count, size, alignment, and prefix properties. |
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dshow\allocator_properties.htm |
dshow |
813e4693-b549-4045-aff5-08f2dd754b6e |
4/26/2023 |
ALLOCATOR_PROPERTIES, ALLOCATOR_PROPERTIES structure [DirectShow], ALLOCATOR_PROPERTIESStructure, dshow.allocator_properties, strmif/ALLOCATOR_PROPERTIES |
strmif.h |
Dshow.h |
Windows |
Windows |
ALLOCATOR_PROPERTIES |
19H1 |
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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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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.]
The ALLOCATOR_PROPERTIES structure describes an allocator's count, size, alignment, and prefix properties.
Number of buffers created by the allocator.
Size of each buffer in bytes, excluding any prefix.
Alignment of the buffer; buffer start will be aligned on a multiple of this value.
Each buffer is preceded by a prefix of this many bytes.
The IMediaSample::GetPointer method returns a pointer to the beginning of the buffer, not including the prefix bytes designated by cbPrefix.
The alignment is applied to the prefix data, if any. If a nonzero prefix is used, the beginning of the prefix is aligned according to cbAlign.