On Sunday 06 May 2001 10:05, you wrote:
> Hello Pierre,
>
> Saturday, May 05, 2001, 2:41:55 AM, you wrote:
>
> PH> Hello,
>
> PH> My question is about keyframes in files created with avifile. I'd like
> to PH> know how to change the frequency of theses keyframes.
> PH> Currently I see two way to do this :
> PH> - calling HRESULT IAviVideoWriteStream::SetKeyFrame(int frequency);
> PH> - changing codecs attributes (not all codecs, but divx for example)
>
> PH> Unfortunately I didn't see any changes in the created file, whatever
> method I PH> used. There is always one keyframe for 100 frames and this
> "default" value PH> don't fit my need.
>
> I do believe that keyframe frequency can be changed through codec
> attributes for div3 & div4 and using SetKeyFrame() for all other
> codecs. If it does not work for you, it is a bug. I'll see if it's
> really so. What codec are you using?
>
> --
> Best regards,
> Eugene
Hello Eugene,
I'm currently using div3 et div4 (almost exclusively). I tried to change the
codec attribute "KeyFrames", giving it all sort of values, like 1, 2, 3, 20,
50, 250 etc but nothing changes.
In fact there is a strange thing to notice : a few weeks ago giving a value
to this attribute made avifile immediately crash and I was forced to remove
the ~/.registry file to erase the value for "KeyFrames". Now I don't
encounter the problem anymore (avifile don't crash whatever value I give for
"KeyFrames") but it seem's that others have had the same trouble recently.
best regards,
Pierre.
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