[gst-devel] Re: I need try_set_caps with unfixed caps...

[Benjamin Otte]

On Sun, 25 Jan 2004, David Schleef wrote:

> On Sun, Jan 25, 2004 at 07:57:19PM +0100, Benjamin Otte wrote:
> > Hi David,
> >
> > I'm currently (in audioconvert) facing a problem and I don't know if a
> > good solution exists:
> > Audioconvert is capable of converting everything but the rate, so I need
> > to check in the link function if the other side accepts caps with this
> > rate but otherwise unfixed. What's the suggested way to do this?
>
> I fixed audioconvert several weeks ago, so it _should_ be
> negotiating correctly.
>
Yeah, that's what I thought, too ;)

> Basically, in (both) link functions, you should call try_set_caps()
> with (first) passthrough caps.  Then, if (and only if) the otherpad
> is already negotiated, you should get the currently negotiated format
> of the otherpad, change the rate, and call try_set_caps().  If the
> otherpad is not negotiated, leave it.  This is all documented in
> docs/random/negotiation.
>
That's not the ideal solution though, but I guess it'll do for now.

Benjamin