Brad Templeton wrote:
>On Fri, Apr 29, 2005 at 12:20:00AM -0400, Donavan Stanley wrote: > > >>On 4/28/05, Alexander Varakin <[EMAIL PROTECTED]> wrote: >> >> >>>Quality of PVR-?50 hardware encoder is very poor and it requires very high >>>bit >>>rates for decent quality (about 6Mb/s). >>>Software MPEG2 encoders are much better, in Windows world CCE and TmpGenc are >>>very good(they can also run on Linux with wine). On linux mpeg2enc is also >>>very good. >>>I always reencode using software encoder. >>> >>> >>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. > >Trying to go to the same resolution or not using a nice high bitrate >for the source would be bad news. If, however, you plan to transcode >immediately, you might as well use a very high bit rate on the source >encoding to remove artifacts from the 1st step, it won't cost you anything >since the file is vanishing pretty soon. > >This could make sense on a machine with not enough cpu to software encode >mp4 in real time (or not wanting to spare the cpu to leave it available for >watching.) > >If you have the cpu to record mp4 in real time I suppose it makes more >sense to get a good raw capture card and do that, but it seems you >might not be able to do things like play HDTV and encode mp4 sdtv at >the same time even on a very fast system. > > >------------------------------------------------------------------------ > >_______________________________________________ >mythtv-users mailing list >[email protected] >http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users > > I myself have been trying to properly setup transcoding properly. I believe I have some acceptable settings now to transcode my mpeg2 hauppauge based recordings into an mpeg4 type recording, but run into issues with aspect ratios. The recordings play back fine if I was to play them back in myth since it corrects for the right aspect ratio it seems, but if I use mplayer, xine, or windows media player on a windows box the aspect ratio is missed up. Is there an easy way to correct this? _______________________________________________ mythtv-users mailing list [email protected] http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
