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<DIV><FONT face=Arial size=2>Hello ,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I am trying to use ON2's VP3 codec in a VC++
DirectX application. I get amazing clarity in the recorded video but
simultaneous preview is very jerky. I am not sure how to change the codec
properties in VC++ but theses are the changes i applied to the videoinfo
header</FONT></DIV>
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<DIV><FONT size=2>
<P>VIDEOINFOHEADER *pvi1 = (VIDEOINFOHEADER *)pmt1->pbFormat;</P>
<P>pvi1->AvgTimePerFrame = (LONGLONG)(10000000 / 30);</P>
<P>pmt1->majortype = MEDIATYPE_Video; </P>
<P>pvi1->bmiHeader.biBitCount=24;</P>
<P>pvi1->bmiHeader.biWidth=width; </P>
<P>pvi1->bmiHeader.biHeight=height; </P>
<P>pvi1->dwBitRate = 40;</P>
<P>hr = pSC->SetFormat(pmt1);</P>
<P><FONT face=Arial></FONT> </P>
<P><FONT face=Arial>However i realised that changing the framerate from 30 to 15
didnt help any as the video still recorded @ 30fps. </FONT></P>
<P><FONT face=Arial>Any help regarding how to overcome the jerky preview will be
greatly appreciated</FONT></P></FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Regards,<BR>Rahul<BR></FONT></DIV></BODY></HTML>