> I'm getting a little bit confused as to what MythTV is doing on the > transcoding front. > > I'm recording UK SD DVB-T mpeg2 streams. I'm struggling to keep up with the > stuff I'm recording, so I'd like to transcode where possible. > > I've got the system transcoding files, I know it is using the "From MPEG2" > profile. (When I change the bitrate the transcoded filesize changes.) > > I understood mpeg-4 ASP to require approx. half the bitrate / filesize that > mpeg-2 does for an equivalent quality file. Then mpeg-4 AVC is even better, > requiring perhaps a third what mpeg-2 does. > > I tried adjusting the settings, but I'm seeing a significant drop in the > quality, even with a modest reduction in bitrate.
I'm recording with DVB-T cards (therefore MPEG2) and transcode to MPEG4 with great results. My transcode settings are: Video - Bitrate:2500, Max Quality:2, Min Quality:15, Max Quality diff bt frames:3, none of the other checkboxes ticked. Sound - MP3, Samplg Rate:32000, MP3 Quality:5. I think this is reducing the files to about 60% of the MPEG2 size. Regards, Phill _______________________________________________ mythtv-users mailing list [email protected] http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
