[Audiere-users] callbacks: a way to notify users

[Jonathan McDougall]

It could be intersting if users were notified of some events, such as
when a stream is done playing. For example:

void foo(audiere::Event e)
{
// done playing
}

audiere::OutputStreamPtr stream(audiere::OpenSound(device, "file"));
stream->on_done_playing = audiere::Handler(&foo);

If I understand correctly, the only way now to be notified when a
stream has finished its playback is to check regularly whether
isPlaying() returns true or false and to interpret that as being the
end of the file.


Jonathan

[R.F. Schaaf]

Jonathan,

the latest (CVS) version implements a callback when the sound stopped
playing. The idea is a bit like the one you're proposing but the deta=
ils
are different. So, please get the latest CVS version instead of doing=
the
polling yourself.

I think we should get together and try to abduct Chad away from his
studies so he can prepare the next official release so that callbacks=
are
in a normal release.

Hey Chad, let's get real, what's more important: Audiere or Gradschoo=
l :)

Regards,
Richard Schaaf

It could be intersting if users were notified of some events, such =

as

void foo(audiere::Event e)
{
// done playing
}
audiere::OutputStreamPtr stream(audiere::OpenSound(device, "file"))=

;

stream->on_done_playing =3D audiere::Handler(&foo);
If I understand correctly, the only way now to be notified when a
stream has finished its playback is to check regularly whether
isPlaying() returns true or false and to interpret that as being th=

e

end of the file.
Jonathan
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[Jonathan McDougall]

Post by R.F. Schaaf

Post by Jonathan McDougall
It could be intersting if users were notified of some events, such as

the latest (CVS) version implements a callback when the sound stopped
playing.

Oh, sorry for wasting your time.

Post by R.F. Schaaf
The idea is a bit like the one you're proposing but the details
are different. So, please get the latest CVS version instead of doing the
polling yourself.

Looks good, except that using something like loki's functor library
would have saved your time and made it more convinient, but I guess
that will do the job.

Thank you,

Jonathan

[R.F. Schaaf]

:) you're not wasting my time :)

As to using a different callback mechanism, well I guess we could have used
something else. As a matter of fact I proposed a different scheme but Chad
elected to go for this one, and you're right, it does its job.

Good luck!

Richard

-----Original Message-----
From: audiere-users-***@lists.sourceforge.net
[mailto:audiere-users-***@lists.sourceforge.net] On Behalf Of Jonathan
McDougall
Sent: Wednesday 18 May 2005 13:38
To: audiere-***@lists.sourceforge.net
Subject: Re: [Audiere-users] callbacks: a way to notify users

Post by R.F. Schaaf

Post by Jonathan McDougall
It could be intersting if users were notified of some events, such

the latest (CVS) version implements a callback when the sound stopped
playing.

Oh, sorry for wasting your time.

Post by R.F. Schaaf
The idea is a bit like the one you're proposing but the details are
different. So, please get the latest CVS version instead of doing the
polling yourself.

Looks good, except that using something like loki's functor library would
have saved your time and made it more convinient, but I guess that will do
the job.

Thank you,

Jonathan


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