Re: [Traverso-devel] CDRDAO export

[Nicola Döbelin]

> > One open question:  Do we leave the standard 2 seconds of pregap
> > silence between songs?  I'm thinking it should include "PREGAP
> > 0:02:00" before the first track of each song's set of tracks,
> > including before the very first track of the CD.  So in the above
> > example, we'd get:
> > 
> > 1: (PREGAP 0:02:00) song 1 mark 1
> > 2: song 1 mark 2
> > 3: song 1 mark 3
> > 4: (PREGAP 0:02:00) song 2 mark 1
> > 5: song 2 mark 2
> > 6: song 2 mark 3
> 
> That's a good question. The standard says only that the first track of a
> CD should have a 2 seconds pregap. So I'd say we let the toc file
> generator put a 2 sec pregap before the first track in the toc, but not
> at the first track of each song!

According to wikipedia that is correct. Red Book CDs have a 2 second pregap 
only before track 01. It's trivial to add it to the toc file, I'll do it 
tonight.

> And I think that in the future, there should be special pregap markers.
> It could be visualised like if the track marks had a draggable start and
> end point, painted in a transparent color. like a range selection..
> And so the start edge would mean PREGAP and the end edge would mean
> start of TRACK. This way one can put whatever they whish inside the
> pregaps, and make them any length.

How about that: If there is no marker at position 0:0:0, write the part from 
0:0:0 to the first marker into the pregap. That would allow to have a bonus 
track before track 01, but it wouldn't allow to have pre-gaps between, say, 
tracks 03 and 04.

Oh dear, this is getting complex. (I see tons of if() conditions coming.) I'd 
rather prefer to add a fixed 00:02:00 pre-gap and not allow having any 
additional pre-gaps at all. But I'll see if I can at least add the above 
described compromise without messing it all up.

I would also like to ask for suggestions on key actions used for "add end 
marker" and "add CD index". We only have <M> for "add CD track" ATM. The end 
marker is added automatically, but since it can be deleted, it should also be 
possible to re-add it. Any suggestions? How about <SHIFT M>, and <CTRL M>?

Greetings
Nicola

Remon: Is the stuff with the TEMP_* markers in Song::get_cdrdao_tracklist() 
clean? I was not sure if they are deleted properly at the end of the function. 
What it does is temporarily add a marker at 00:00:00 if there is none, and add 
an end marker at the end of the track if no end marker is present. Then I can 
iterate over mlist without having to bother about missing positions.


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