> > 1. I can't use filters such as "kerneldeint" when > > encoding. This seems strange, since MythTV is > > encoding the stream to MPEG-4, just as it did > > with the analogue card. > > I dont think its being deinterlaced because with > DVB you are capturing the raw data, not frame > grabbing.
As far as I can see MythTV is encoding this raw data straight to MPEG-4 (or RTJpeg). It would be nice if there was some way to deinterlace during this encoding process, as the OS X version of MythTV is extremely inefficient when it comes to zooming or deinterlacing during playback (it results in >3x the CPU utilization). The MythTV docs actually mention the limitations for filtering with DVB: "These [filters] may be used when encoding in software (MPEG-4, RTjpeg) but do not apply when using a capture card with hardware encoding such as those supported by the ivtv driver, DVB, HDTV or MJPEG cards". However, in my case, I am still encoding the video stream in software, as I don't believe that my DVB card has a hardware MPEG encoder built in. > > 2. The aspect ratio is stuck at 16:9. This means > > that when a show is broadcast in 4:3, there are > > black bars at the top, bottom and sides. > > Check your mythfrontend settings to make sure you > don't have override aspect ratio on. As Ben de Luca noted, all broadcasts (even those with a 4:3 aspect ratio) are broadcast in 16:9 here in Australia. AFAIK, our digital set-top-boxes simply zoom these to 4:3 when the "aspect" button is pressed on the remote. It would be great if there is a way to do this on the server side (via transcoding or via the recording filter chain), since the Mac mini chokes when trying to do it (and the XBox struggles a bit too). Find local movie times and trailers on Yahoo! Movies. http://au.movies.yahoo.com _______________________________________________ mythtv-users mailing list [email protected] http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
