Vivotek Supreme SD9374-EHL, Руководство пользователя

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VIVOTEK
User's Manual - 79
P I P P P P P P P P P P P P P P P P P P P I
P I P P P P P P P I P P P P P P P I
Static scene
Activities
P P P
Dynamic Intra Frame w/
static scenes
Dynamic Intra Frame w/
activities in scenes
With the H.265 codec in an optimal scenario and when the Dynamic Intra frame and the Smart Stream
function are applied, an 80% of bandwidth saving can be achieved compared with using H.264 without
enabling these bandwidth-saving features.
f1 f1 f1
f1
f5 f5 f5 f5 f9
f1 f1 f3 f4 f5 f6 f7 f8 f9
Motions Occur.
By queuing the old frames from a static scene, both the computing efforts and the size of P frames are
reduced. It is beneficial for keeping up with the frame rate requirements.
A default frame difference threshold, 1%, is embedded in firmware for returning from Smart FPS to
normal encoding when motions occur.
■ Smart FPS
In a static scene, the algorithm puts old frames in queue when no motions occur in scene. When
motions occur, the encoding returns to normal to deliver real-time streaming.