请教关于'视频渲染器’

[sakurayumi]

在‘视频处理’－‘视频渲染器’对话框中选择渲染器：
VMR9(窗口化)和VMR9(未渲染模式－HQ字幕)，它们的区别在哪里？哪种模式好些？
刚才突然发现选择VMR9未渲染模式ｃｐｕ占用高了很多（２０％涨到近５０％）,不过画质好像没有明显变化 。
请教各位专家。

[njmzhang]

不懂，这个要看身微软的文档才能知道了。
不过就像文字所说的，VMR9方式显示字幕确实要好一些。

VMR方式是比OverlayMixer要占CPU，不过好像也没你的那么多啊

[zhang_yijun]

或许"VMR(Video Mixing Render) Materials ([Only registered and activated users can see links])"和"How to choose the video renderer? ([Only registered and activated users can see links])"可以帮到你。

[sakurayumi]

或许"VMR(Video Mixing Render) Materials ([Only registered and activated users can see links])"和"How to choose the video renderer? ([Only registered and activated users can see links])"可以帮到你。
I've read the article you posted,what you have said is very helpful,thank you.I do now have an inkling of what the VMR is.Anyway,what's the difference between VMR(renderless) and VMR(windowed),I am not quite clear.Will you explain it in more detail?

[zhang_yijun]

Copied from On-Line Documentation of Zoom Player

VMR9: Windowed
This is the most basic mode. It is available for backward compatibility. It does not give you access to Frame Capturing. One thing about this mode is that there was a bug in Windows XP-SP1 and DirectX-9b which made this mode the only mode in which DVD Menu navigation works. With Windows XP-SP2 and DirectX-9c the DVD Menu navigation bug was fixed.

VMR9: Renderless
This is the most complex VMR9 rendering mode. It can work in Direct3D exclusive mode which means the entire machine is set to fullscreen and no background application are allowed access to the video hardware. Under Direct3D Exclusive Mode, less CPU is required to play videos and depending on the resolution of the video, playback may be smoother. The downside is that in Direct3D Exclusive mode, your computer is wholly dedicated to video playback and you won't be able to perform any other tasks.

[sakurayumi]

Very clear,thanks!!