Hi Alain! Well, I can share my experience :) I did practically the same as you, except that I was probably a bit more lucky and could record also in divX fast motion. My recommendation would be - never do record with fast motion. It's much worse quality for any average movie, than you can get with slow-motion codec. Still wondering why you couldn't find the codec - it does not really come with avifile, but should be downloaded separately, but if you have the slow-motion, you should also get the fast one... For the downloaded movies - check the resolution! This movies are usually recoded from DVD and have higher resolutions (640x480 etc). Of course they are bigger (per second), and better. Usually TV-cards (you capture from a TV-card, right?) can capture at up to 764x576 (or similar, can't remember right now, limitation is the PAL resolution itself), but the problem is that most of the home PCs are not fast enough to convert that amount of data on-the-flight! So you may have to capture it to some other format (raw files? :( ) and convert to divX later. This is not fun, because most of formats consume extremely big space... And finally, your questions: 1) You just told yourself! Bitrate and keframes!:) 2) Bitrate is the upper limit of the cunsumed bitrate, so if your movie is with slower motions etc.etc, your final movie may have even less bitrate then what your specified. In practice 1500kbit/s is more then enough for 320x240 (usually the final movie is ~900kb/s). Remember that doubling the linear resolution (640x480) will eventually quadruple the bitrate! 3) Keyframe is the number of partial frames between full frames, right. If you decrease it, you file will grow bigger, and the encoding will become slower, so you risk to loose frames if you go too low! Actually, setting it big should not harm, as the codec will decide itself if there's a need to put an intermediate full frame. And this number depends on the kind of movie that you capture - must play and see. For me 15 was fine for little (320x240) movies. 4) Try to install the new divx4 codec fromt the avifile homepage. You will need to reinstall avifile package, too, to a newer version 0.6. Remember to clean up the old stuff (and save them somewhere, for 0.6 is not as stable as the previous one, at least for me :) And again, never use fast-motion :))) It's ugly-ugly-ugly!!! Cheers and good luck! :) Eduard
It wors in console-mode thus and you just have to type:
: vcr --codec "divx ;-) low-motion" -a 'Bitrate=1500' --quality 100 audiobitrate 128 --rectime 90m -p RTL --audiomode stereo test.avi
I am a little baffled because I wonder how VCR managed to find the codec during installation. I suppose it found the codecs installed with avifile. Problem is I can't record in fast-motion mode (don't find codec!!).
2d problem: a 90 minutes recording takes about 300 Mb. I downloaded .avi file of about 650 Mb that lasted about 90-120 minutes with a better image quality of course.
My records are not too bad but I have a lot of "squares" that appear.
Thus, questions, I am still a newbie in video divx/capture and I don't use a "click-click" windows program:
Does anyone knows VCR?
1) what parameter must I change to reduce the presence of "squares"? 2) what is precisely "Bitrate" , its influence on the quality of the capture. 3) --keyframes, -k <keyframes> Number of frames between keyframes (default=15): I suppose that if I decrease "keyframe", I decrease the number of intermediate and partiel frames between full-sized frames. What is the ideal number for a correct capture? 4) I can't thus encode in fast-motion: how can I solve the problem: which codec to use, where to install it and how to configure VCR to use it?
That's all folks
Happy New Year -- Alain Barth�lemy
bartydeux@gminformatique.com http://bartydeux.gminformatique.com
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