ZIKY ha scritto:
uso si l'overlay,perche in Vmr9 non so bene i vantaggi, me li spiega qualcuno perpiacere????
Quindi se utilizzi l'overlay devi fare attenzione perchè funziona solo sul monitor primario.
Uno dei primi vantaggi del VMR7 e/o 9 è proprio quello di poter funzionare su monitor diversi dal primario ed anche su più monitor contemporaneamente. Per quanto riguarda la resa la questione è ancora molto dibattuta, con alcune configurazioni è meglio l'overlay con altre funziona meglio il VRM.
Qui sotto trovi la definizione di cos'è il VRM:
"VMR - Video Mixing Renderer: this comes in two major "flavors" VMR7 and VMR9. VMR7 (initally simply called "VMR") was an initial trial, so to speak, of newer advanced video mixing abilities using the 3D pipeline and the DirectX Video Acceleration API, it was only available in Windows XP. VMR9 is a newer, some what different, and improved VMR that comes with DirectX 9 therefore it can work on any system that can install DirectX 9, but VMR9 has more strenuous hardware requirements than VMR7 (VMR7, as you can guess, is VMR using DirectX 7/8 level technology.) For VMR7 You need a DirectX 8.1 compliant card to utilize VMR7's deinterlacing and filtering. For VMR9 you need DX9 installed and recent DX9 compliant drivers for your video card installed. A fully DirectX 9 compliant video card (GeForce FX family or Radeon 9500+) is recommended so that all VMR9 features (specifically, the newer DX9 deinterlacing and filtering) can be utilized; for basic VMR9 support DirectX 8.1 level cards will do fine and some DX7 level cards may work providing they meet some requirements.
Since VMR9 actually uses the 3D pipeline in a graphics processor many more
filtering and advanced source/stream mixing possibilities exist. This is considered the next way to display advanced video data by Microsoft, it is intended to supersede the old "mapped memory" style "overlay". VMR in general should not make image quality worse, if it it does, the first thing to do is to update your graphics card drivers, this has been known to help greatly; please note that older generation cards may not be fully compatible with VMR9"