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Compressing video encoded with ATI's codec..

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Ph33zy

Senior member
I use my ati tv card to record tv clips in the ati avi format...the thing is the files are quite large...how would i compress the files even more..or into another format..
 
The best commonly available codec for video compression right now is MPEG4 (DivX). Download and install the codec, and use a program such as VirtualDub to compress it (both video and audio). Of course you'll want to experiment with the bitrate to get the kind of file size/quality ratio that suits you, but generally I find something in the range of 500-1000kbps acceptable for 640x480 source material.

Also, you may also want to consider Ben Rudiak-Gould's HuffYUV codec for capturing lossless compressed video. If you have the hard drive space available, it's much better to begin with lossless video...two compression routines really limit the quality.

Best regards,
Floyd
 
if you use virtualdub you have to have the uncompress file already and then re-encode it, if you want to seriously compress on the go and quality is not that big an issue (in fact you can control the quality you want) I use windows media encoder (free). It sends the sucker directly to the compression I choose, so for example I can record shows burn them onto rw's and bring them to work and watch them there. The files are as big or small as you want them to be. If you want to do professional movies then this is not what I would recommend but if you want to use it like a vcr and watch the shows once then this is great. I experimented with the quality and I can put 5 hours of 640X480 with very decent quality on cd. I can even tell WME to cut files at 100 or 600 megs each or whatever size to make sure I can fit them on a cd.
 
Actually you can capture directly to any compressed format you wish directly with VirtualDub, but the limitation is processor power. It isn't currently possible to compress MPEG4 video at full frame rate (somewhere between 24-30 fps). If doing real-time compression is important, your best bet is probably Motion JPEG, but of course this comes at the expense of visual quality.

Best regards,
Floyd
 
Floyd you are absolutely correct. But I still think that WME does a darn good job at encoding compression on the go.
 
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