WM Encoder bit rate,fps vs performance

hi,

I am trying to explore the WM Encoder tool for a screen capture. I noticed that the encoder always had a different bit rate and capture rate for each session. I chose to have medium quality output file every time. I am trying to emulate the performance issues i have with my application to help me with the same. I have an application which uses the WM Screen Encoder to do the capture. However, i am facing performance problems. The CPU resources always max to 90+ pc. Is there any way to tune my encoder to give me better performance I am getting a slightly better performance with your tool. But even in the case of the tool the resources max to 90pc often. I was wondering how the bit rate and fps is chosen and how to tune the encoder
I have a 1.33 Ghz toshiba protege tablet pc.

Thanks.

Samantha

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WM Encoder bit rate,fps vs performance

Peter Lillevold
Many thanks for your help. But, i seem to be a bit lost as in where to put this code Can you please elaborate on this above piece of code Sorry for bothering you.

Thanks.

Samantha
RyanH106
Hi Becky,

Thanks so much or your response. I figured out what Vandun was trying to say and i am implementing that in my code.Yes, i am trying to write my code. I have the code which uses the WM Screen encoder. I am sorry for the prev. post as I did understand it at once.

many thanks for the pointer to the encoder forum.

Samantha
BlueMikey
Try to set complexity mode to Live (1):

CComQIPtr<IPropertyBag> propertyBag = encoder;

VARIANT varComplexety;

VariantInit(&varComplexety);

varComplexety.vt = VT_I4;

varComplexety.lVal = 1;

propertyBag->Write(g_wszWMVCComplexityEx, &varComplexety);
djehmli

Samantha,

Vadun's suggestion would work if you were writing code to do this compression against, say, the Windows Media Format SDK; what he's suggesting is a way to tell the codec to do lower-quality and hopefully less CPU-intensive encoding.

However, it sounds like you're not writing code and instead are just using the WM Encoder tool directly. I unfortunately don't know whether these complexity settings can be set by hand through the user interface. The best place for WM Encoder questions is the WMEncoder newsgroup, which is here: http://www.microsoft.com/windows/windowsmedia/community/newsgroups/WindowsMedia/default.mspx dg=microsoft.public.windowsmedia.encoder&lang=en&cr=US ... This forum deals with Media Foundation, which is the multimedia programming platform for Windows Vista.

Becky
WM Encoder bit rate,fps vs performance

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