Re: [linux-audio-dev] LADSPA Update, New Project (CMT) & Help Requested

[Juhana Sadeharju]

>From:  "Richard W.E. Furse" <[EMAIL PROTECTED]>
>
>((3) LADSPA needs better user and development documentation.)

Yes. The comments in the plug-in are not enough for developers.
I will check if I learn anything worth of documenting while writing
LADSPA support to my software.

 -*-

I noticed that both analyseplugin.c and applyplugin.c doesn't free the
descriptor structures. It could be a good to make a proper cleaning in
these examples.

If I just want to know how many labels the plug-in has, do I really
need to get every descriptor (plenty of mallocs and frees)?

It would be nice to have a function which tells how many there are,
or have the ladspa_descriptor(unsigned long Index) return the number
of labels when Index == -1.

 -*-

A minor thing: dlsym() on error seems to need more code than written
in example hosts. See dlsym() manual page. My code is following:

  func = dlsym(dlhandle,"ladspa_descriptor");
  if (func == NULL) {
    /* check if we really got an error */
    error = dlerror(); /* save because next call to dlerror() returns NULL */
    if (error != NULL) {
      /*   my error code deleted   */
    }
    /* else the NULL is a valid function address */
  }


Juhana