<div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">As for the number of profiles an HD user needs, here are the ones I<br>think could be handy:
<br><br><br> a) Transocde 1080i to 720 lines, for people with 720 line TVs<br> for whom storing the extra megapixel is of limited value.<br> Goal: Reduce size, but lose no quality you would see on
<br> your TV. De-interlace the 1080i of course before<br> resizing.</blockquote><div><br>How do you save size with that? 1080x1920x25 is 51.84 Megapixel/second while 720x1280x50 is 46.08 Megapixel/second. There is hardly any difference between those numbers.
<br></div><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> b) Transcode both 1080i and 720p to 1280x720 recordings at lower<br> bitrates for long-term disk space saving. Traditional
<br> transocding purpose, for which one may wish high, medium<br> and low qualities. For people with 1080 line TVs, they<br> would possibly want different targets for 1080i than for<br>
720p. 1280x540 and 960x540 are common targets for<br> "near HD" in a small filesize.<br><br> c) Basic mpeg-4 encoding at about half the size of MP2 but<br> similar quality.
</blockquote><div><br>I would use MPEG4 as target for b), so b) and c) is the same to me.<br></div><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
d) "Streaming" quality transcodes of SDTV that fit within<br> your upstream bandwidth (384K or 512K for example.)</blockquote><div><br>One more possible target: DVD resolution, but that is taken care of by MythArchive.
<br></div></div><br>Of course it would be nice to select whether the output should be deinterlaced or not. The transcoding system does even allow adaptive deinterlacers, which are prohibited while viewing because of CPU-requirements. Are there any adaptive deinterlacers available that could be added as a user job?
<br><br>And as a user from a small country, it would be nice if the transcoding could handle DVB-subtitles. A workaround might be to extract the subtitles as a user job with ProjectX and then merge them again after transcoding. Does anyone know if the .nuv format allows DVB-subtitles and would MythTV show such subtitles in a .nuv file?
<br><br>Best regards<br>Niels Dybdahl<br><br>