Ok, thanks Romain, that was what I was afraid of.
I'll put in that dev request later today. Unfortunately, I'm totally
unfamiliar with OCaml - otherwise I'd take a look at submitting code for
this to the Liquidsoap project.
Fergal
On Thu, Nov 10, 2011 at 9:55 AM, Romain Beauxis <[email protected]>wrote:
> Le 7 novembre 2011 20:33, Fergal Toohey <[email protected]> a écrit :
> > Hi guys,
>
> Hi!
>
> > I'm working on a project which requires the cue-out points to be
> specified
> > during the playback of a track.
> > At the moment, all tracks are chosen as requests over Telnet. In doing
> this,
> > I'm able to set the liq_cue_in points via annotate as follows:
> > request.push annotate:liq_cue_in="100.":G:\Music\monster.mp3
> > Which works fine, the tracks start at the desired point in the song.
> > Unfortunately, however, I cannot use this method to set the liq_cue_out
> > metadata, as the desired cue-out point will only be chosen at some point
> > during playback.
> > So far, I am attempting to update the meta-data with an
> interactive.string
> > via Telnet, as follows.
> > --------------------
> >
> > cue_out = interactive.string("cue_out", "200.")
> > s = request.queue(id="request")
> > def update_metadata(m) =
> > [("liq_cue_out", cue_out())]
> > end
> > s = map_metadata(update_metadata(), s)
> > s = cue_cut(s)
> > s = mksafe(s)
> >
> > output.ao(fallible=true,s)
> > -----------------------
> > The telnet command I'm sending is: var.set cue_out = "115.0"
> > This successfully updates the metadata of the track that starts AFTER
> this
> > command is sent, however, it does not appear to affect the metadata of
> the
> > currently playing Request, which still maintains the old cue_out value
> - I
> > need to be able to change the cue_out point of the currently playing
> > Request.
> > I should add that I will also need to adjust crossfade settings during
> > playback, but I guess once I get the cue metadata behaviour right, the
> fade
> > settings will be similar.
> > Thanks in advance for any advice you might have. I've had a long search
> > through all the documentation and the mailing list here, but I can't find
> > anything about changing cue points on playing tracks.
>
> Unfortunately, what you intent to do is not currently supported: the
> cue operator only considers metadata at the beginning of the track...
>
> I also do not see any sane alternative implementations. Thus, I
> believe that the only solution is to add this feature to the code..
> Could you fill a feature request there:
> http://dev.sourcefabric.org/browse/LS so we can keep track of this?
>
> Thanks,
> Romain
>
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