Output of PVR-?50 at 6-8Mb/s is as good as uncompressed. It is also a good idea to apply slight temporal filter of PVR-?50 if your singnal is noisy.
As for realtime encoding idea, I've been there and don't want to go back. Encoding is not all what you want to do while recording, you also want to deinterlace and apply denoising filter. Denoising and deinterlacing are very important because they allow much better compression. You need a good horsepower to do this, at least 2GHz. Such hardware is noisy (or expensive) and consumes about 150W of power, so you have to pay about $10 for electricity bill each month if you run backend 24x7. Also raw capture cards often have issues with audio sync. One more thing: obviously it is not possible to do multipass encoding in real time. On the other hand, PVR-?50 can be run on older hardware (e.g PIII) which consumes only 30W and can be easily made silent. > > > > If you're reencoding already encoded files it's too late. > > To some extent. But I think if you record 720x480 at a high bitrate > (8mbit) on your pvr-250, you can then reduce that to something lesser like > 480x480 mpeg4 without doing too much worse than having done it from the > raw. > _______________________________________________ mythtv-users mailing list [email protected] http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
