Re: Spumux not playing nice

On 2011-05-09 01:19, Lawrence D'Oliveiro ldo-at-geek-central.gen.nz
|dvd-author/Example Allow| wrote:
> On Sun, 8 May 2011 18:08:31 +0000, Jani Patanen wrote:
> 
>> spumux -s1 -P program.d/spumux.xml <  program-fi.mpg > program.mpg
>>
>> suddenly the first subtitle track is no longer finnish, but swedish.
>> Is this a bug or a feature? What affects on the order the languages
>> are available?
> 
> spumux has no knowledge of what the language assignments are; all it
> does is assign IDs to the multiplexed streams.
> 
> It is dvdauthor that establishes the correspondences between these
> stream IDs and language codes. Are you telling it what the
> correspondences are?

Finally solved my problem, which was actually several problems:

- Sometimes the Finnish subtitles were the first set of subtitles
demuxed, sometimes they were the second
- no matter if the Finnish subtitles were muxed in to stream 0 (first
stream) and Swedish subtitles to stream 1 (second stream), while looking
at the .mpg with VLC and selecting first subtitle track it sometimes
showed Swedish subtitles.

Ie. VLC results when viewing the .mpg were not being 1-to-1 with the dvd
output. That made it very difficult to be sure which subtitles were in
which track. After careful debugging of my muxing scripts and examining
the intermediate muxes I came to conclusion that things may have been
muxed right, though appearing wrong. Though it's more time consuming,
one should check only on the final product (DVD), not the intermediate
results (.mpg files which are to be authored to dvd).




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