Re: [ecasound] ecasound-2.4.6.1 segfaults when I try to do 2->4 inputchannels mapping

> --- On Mon, 8/4/08, Stuart Allie <Stuart.Allie@email-addr-hidden> wrote:
>
> > From: Stuart Allie <Stuart.Allie@email-addr-hidden>
> > Subject: RE: [ecasound] ecasound-2.4.6.1 segfaults when I try to do
2->4
> inputchannels mapping
> > To: sergstesh@email-addr-hidden, ecasound-list@email-addr-hidden
> > Date: Monday, August 4, 2008, 4:07 PM
> > > Hello All,
> > >
> > > when I run this command line:
> > >
> > > ~/AFSWD/install/ecasound-2.4.6.1/binsh/ecasound -
> > > a:two_to_four_channels_chain -i track.flac -chmove:2,3
> > -chcopy:1,2 -
> > > chcopy:3:4
> >
> > Should that be -chcopy:3,4 (comma, not colon)?
> >
> > That might cause "interesting" behaviour...
> >
> > Hope that helps.
> > Stuart
>
> At least, you've just confirmed there is a bug in command line parser.
> With the suggested fix ecasound does not crash, though it is stuck
with my
> plugin.
>
> Which just can be that my plugin is bad, but yesterday it worked with
> ecasound (without the mapping).
>
> Thanks,
> Sergei.
>

Well, it's a step forward :)

My next suggestion would be to send the output of the chain to a file,
and check to make sure the file has the 4 channels you expect. Then we
can at least be sure that ecasound is doing the mapping correctly.

So something like:
ecasound -a:two_to_four_channels_chain -i track.flac -chmove:2,3
-chcopy:1,2 -chcopy:3,4 -f:16,4,44100 -o:four_channels.flac

Then open fourchannels.flac in your favourite editor to confirm that it
has the four channels we expect.

Next, try using that 4 channel file directly in ecasound, feeding your
plugin:

ecasound -a:four_chan -i:four_channels.flac -el:my_cool_plugin,(some
params) -f:16,4,44100 -o:post_plugin.flac

See how that goes...

If it works okay using a 4 channel file directly but making four
channels on the run doesn't then there could well be a bug in ecasound.

Cheers,
Stuart

-------------------------------------------------------------------------
This SF.Net email is sponsored by the Moblin Your Move Developer's challenge
Build the coolest Linux based applications with Moblin SDK & win great prizes
Grand prize is a trip for two to an Open Source event anywhere in the world
http://moblin-contest.org/redirect.php?banner_id=100&url=/
_______________________________________________
Ecasound-list mailing list
Ecasound-list@email-addr-hidden
https://lists.sourceforge.net/lists/listinfo/ecasound-list
Received on Tue Aug 5 04:15:05 2008