[Dvdauthor-users] Best way to create static video mpeg (single jpeg) with long audio (1 hr)?

[Michael S. <li...@mi...>]

Suppose I have one title on a DVD that is audio only and I want the
player to display a static image on the screen while it is being
played (such as a picture of the fellow who is speaking).

Now, normally when I do something like this with menus, I create
a mpeg video stream from a jpeg using something like:

jpeg2yuv -n 500 -I p -f 29.97 -j infile.jpeg | mpeg2enc -f 8 -F 4 -a 2 -n n -o outfile.m2v

which works well enough for short sequences. However, for longer
sequences, say 1 hour, this takes a long time to process as well
as generates a large output file. For example, for a jpeg of about
100KB, 1hr of NTSC (107892 frames) requires about 300MB - this is
the video overhead that seems to be required for my lowly 80MB audio
ac3. I suppose lowering the video bit rate helps, but beyond a certain
point it noticeably reduces the quality of the mpeg even though it
is "static". (Increasing the GOP size drastically, to say 300, helps a
lot, but I think the DVD spec only allows a GOP size up to 18 for NTSC).

It is a shame I just can't mplex a short video mpeg with a full
length ac3 audio, but this drives many DVD players (ogle, mplayer)
nuts. :(

Is there a better way of approaching this case (static image with
long audio) such as "looping" video only, or is the jpeg2yuv
approach and a 300MB mpeg overhead the only game in town?


  Thanks in advance,

  Mike Shell