Property VLDSCompression.TVLDSVideoCompressionItem.PFramesPerKeyFrame
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Class: TVLDSVideoCompressionItem
Contents |
Syntax
Delphi:
property PFramesPerKeyFrame : Integer read FPFramesPerKeyFrame write SetPFramesPerKeyFrame default 1;
C++ Builder:
__property int PFramesPerKeyFrame = { read=FPFramesPerKeyFrame, write=SetPFramesPerKeyFrame, default=1 };
Summary
Desired number of P frames per key frame.
Description
Use this property to specify the desired number of P frames
per key frame. If the value is negative, the filter will use
the default rate.
P frames are used in MPEG compression; in general, this property does not apply to other compression formats. For example, suppose a key frame occurs once every 10 frames, and there are three P frames per key frame. The P frames will be spaced evenly between the key frames. The remaining six frames are bidirectional (B) frames.
