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.

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