Re: Segfault when trying to author a menu.

Hi Lawrence, thanks for your reply and sorry for the delay in
acknowledging your assistance.
I've edited my code to call dvdauthor with an xml file instead of the
command line arguments and all works fine now.
I've also utilised your slidify script which works perfectly.

Is it acceptable for title and menu videos within the same titleset to
have different frame sizes, providing the standard (e.g. pal) and
aspect ratio (e.g. 16:9) remain the same? (i.e. using the generated
720xFull menu from slidify with 704xFull, 352xFull or 352xHalf titles)

I encoded a 16:9 DVD at 704x576 (upscaled from 640x353 with ffmpeg and
processed successfully by dvdauthor) and it plays back fine on my PC
(in VLC, Totem and Mplayer) with the 720x576 menu. Both the menu and
the title video are scaled by the (software) player to 1024x576 -
identical result when the same title video is encoded to 720x576 (by
ffmpeg).

Wikipedia states in the article on DVD-Video that "Only full D1
resolutions support widescreen (16:9) video, via anamorphic DVD." and
defines 720xFull(576/480) as the full D1 resolutions.

Am I likely to encounter compatibility issues with standalone DVD
players if I encode 16:9 DVDs with frame sizes other than 720xFull?
(e.g. 704xFull, 352xFull or 352xHalf)

Many thanks for your attention.

P.s. Do you know of a way to hide my email address in the Sourceforge
archive? Sourceforge appears to be displaying my complete email
address to the world at
http://sourceforge.net/mailarchive/message.php?msg_id=26525158 in your
original reply. I've deleted the email addresses from the referenced
emails below so not to perpetuate the problem.

On 1 November 2010 07:04, Lawrence D'Oliveiro <...> wrote:
>
> On Mon, 1 Nov 2010 04:55:55 +0000 Kit Rule <...> wrote:
>
> > menu.mpg is produced with the following commands:
> >
> > ffmpeg -t 1 -f s16le -ac 2 -i /dev/zero -ab 32k -y silent.mp2
> > jpeg2yuv -j pal.jpg -n 25 -f 25 -I p | mpeg2enc -n p -f 8 -a 3 -o
> > menu.m2v mplex -f 8 -o menu.mpg menu.m2v silent.mp2
>
> This seems overly complicated. Given you’re already depending on FFmpeg,
> you can use it to produce the whole menu:
>
>    ffmpeg -loop_input -t 1.0 -i pal.jpg \
>        -ar 48000 -f s16le -i <(dd if=/dev/zero bs=96000 count=1) \
>        -target pal-dvd menu.mpg
>
> Or even simpler, using my slidify script <http://github.com/ldo/slidify>:
>
>    slidify --magicksrc=xc:black menu.mpg
>
> As for your crashes, it looks like you’re using the command-line
> options in some inconsistent way that dvdauthor isn’t checking for.
> Frankly, I’m not sure I have much enthusiasm for maintaining all those
> menu- and title-building command-line options anyway; I prefer to use
> the XML file. Any reason you can’t do the same?

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