theora dev - Mar 2005 - "encoder_example" segfaulting...(and a couple of other questions)

I picked up the imported Feb 2005 issue of "Linux Format", in part for
the
Theora article...and I was pleasantly surprised to see my mouldering old 
"Ogg-Theora Micro-howto[1]" document referenced.  I figured that meant
people
might still be finding it useful, so I felt it was time to dust it off and 
update it.

I also noticed that archive.org now has a small but growing collection of 
public-domain classic cartoons[2] (can't help it if I'm a cartoon
junkie)
available in DVD mpeg2 format, so I figured I'd grab one, try out my old 
instructions for dumping file data from mplayer, and see if it still worked 
(and see if the issue of needing to ensure that the first audio packet 
preceded the first video packet had ever been addressed).

I made sure I had the current libogg and libvorbis, and compiled up libtheora 
alpha4 to try it out...

Once I've started the separate audio and video streams via mplayer, 
encoder_example puts out 4 stages of the rotating "I'm doing
something" bar
and dies with a "Segmentation Fault" (or so strace shows).

Any hints where I might start finding the cause of the problem?  I also 
grabbed the current SVN, compiled and installed it, and tried it, but got the 
same results.

Secondary questions:
Was the issue of how to handle subtitle streams in Ogg Theora files/streams 
ever decided?  IS there a mechanism available for this yet?

Anybody know if the example encoder was ever updated so that I can dump both 
video and audio from a single mplayer process instead of having to do an 
audio-only followed by a video-only process?

Finally - what's left before Theora can go out as "beta 1"?

Thanks

[1] - 
http://www.dogphilosophy.net/SECTION-Technical_Stuff/ogg-theora-microhowto.html
[2] - 
http://www.archive.org/movies/movieslisting-browse.php?collection=classic_cartoons

On Sunday 13 March 2005 10:34 pm, mail-lists+theoradev@dogphilosophy.net 
wrote:
[...]
> Secondary questions:
> Was the issue of how to handle subtitle streams in Ogg Theora files/streams
> ever decided?  IS there a mechanism available for this yet?
>
> Anybody know if the example encoder was ever updated so that I can dump
> both video and audio from a single mplayer process instead of having to do
> an audio-only followed by a video-only process?
>
> Finally - what's left before Theora can go out as "beta 1"?
I just (re-)discovered the wiki, so ignore the third question (unless anyone 
can hazard a guess as to how soon the items that are left might be 
addressed?)

As to the first - I see OggWrit, and that it depends on libogg2.  How 
backwards-compatible is libogg2, and is the the only way to add (text) 
subtitle streams to ogg?  How widely supported is this or any other mechanism 
for including subtitles in Ogg Theora?

Thanks...