On Wed, 13 Sep 2006 09:48:44 +0200
T <[EMAIL PROTECTED]> wrote:

> Hi, 
> 
> According to the spec[1][2], DVD supports a whole spectrum of frame sizes,
> ie:
> 
> MPEG-2, 525/60 (NTSC): 720x480, 704x480, 352x480, 352x240
> MPEG-2, 625/50 (PAL): 720x576, 704x576, 352x576, 352x288
> 
> However, only 1/4 of them are supported by transcode, ie, the 720x one.
> 
> I really wish that all valid frame sizes are supported. Especially, the
> 352x240/288 one. I'll post my fighting to get that working with current
> transcode in another thread. 

That's planned.
We've planned a complete rewrite of profile support.
As in transcode 1.0.x (and still in future 1.1.0, due to lack of
manpower/time), profile data is hardcoded in export modules.
That is obviously 'suboptimal' (to be polite).

The idea is to make profile data just another configuration file that's
automagically loaded and applied before any other configuration
(i.e., from commandline).

Advantage of doing so:
1) profile are now stackable, so one can load more of one profile, if doing
so make any sense to him/her
2) profiles are easily customizable
3) profiles are easily editable by anyone without any coding skill/time and
without rebuilding transcode

I've no found any feasible path to achieve above goals without rewrite almost
enterely the export layer, and this task was dropped from 1.1.0 feature list
for reasons explained on top of this mail.

I'm fairly sorry for this situation, but that is.

> Please don't laugh at / ignore the "pathetic" 352x240/288 frame size.

It's not my intention at all :)

> If no objection, I don't mind roll up my sleeves and do the initial coding. 
> (Just checked out the latest CVS head, and everything seems fine...)

Uh pretty nice to read :)
If you want to give an hand in process of making 1.1.0 support all cool stuff
above, you're very welcome, of course: just drop us a mail on transcode-devel,
I've written a good amount of new code so I hope I could help on this job
even my spare time is ridicoulously low. :|

If you want to go another way, it's fine, just let's talk on transcode-devel.

I have only one strong objection: add more profiles like the existing ones
in export_ffmpeg (hardcoded into export module(s)) should be seen as *very*
*last* *resort* and I'll never enthusiast nor just happy doing so.

> I proposed that we '-t dvd-vcd' as its standard type name, as what tovid is
> using[3]. Also, how shall we name the 704x frames?

Fine for me.

> [1]AUTHORING GUIDES -> Introduction to DVD authoring
> http://www.digitalfaq.com/dvdguides/authorburn/intro.htm
> 
> [2]DVD Frequently Asked Questions
> http://www.dvddemystified.com/dvdfaq.html
> 
> [3]wish feature, 704x frames
> http://www.createphpbb.com/phpbb/viewtopic.php?t=151&highlight=&mforum=tovid

Uh pretty nice links :)
Thanks :)

best regards,

-- 
Francesco Romani - Ikitt ['people always complain, no matther what you do']
IM contact    : (email first, Antispam default deny!) icq://27-83-87-867
known bugs    : http://www.transcoding.org/cgi-bin/transcode?Bug_Showcase
tiny homepage : http://fromani.exit1.org (see IDEAS if you want send code!)

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