AW: [mythtv-users] Aspect ratio changes 16:9 to 4:3 using mythwebburn

[Martin Bene]

Hi,

> I have a DVB-T card so my recordings are 16:9.  

DVB-T doesn't have anything to do with aspect ratio; this can still vary
between programs; some might be 4:3 and others 16:9.

> However, when I use 
> mythwebburn (under Knoppmyth R5A22 - but with a very recent 
> cvs copy of mythburn, needed to get around other problems)) the
resultant 
> DVD plays in 4:3 aspect ratio.  The image is stretched to fill the 
> screen vertically.

Older versions of mythburn used to have all titles on a DVD in a single
title set, so the whole DVD could only be either 4:3 or 16:9. one of the
updates I did (and which should be in current CVS) was to reorganise the
DVD layout so aspect ratio is defined per title.

> Does anyone know what is going wrong?  Does mythburn assume 4:3?

No.

Info about the aspect ratio is part of the mpeg2 stream recorded via
DVB. The aspect ratio for a title is set by dvdauthor by looking at the
beginning of each title. So, if your recording begins a bit early and
the first frames are 4:3, the whole title is set to 4:3 for the DVD. 

You can edit the recording using mythtv to mark the beginning for
commerical cutting so the titel starts with the correct aspect ratio.

Bye, Martin