[gstreamer-bugs] [Bug 588783] [gst-inspect] Add RPM provides output

[GStreamer (bugzilla.gnome.org)]

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  GStreamer | gstreamer (core) | Ver: git




------- Comment #8 from Bastien Nocera  2009-07-28 20:15 UTC -------
(In reply to comment #7)
> (In reply to comment #6)
> > Right, except that stuff like:
> > video/mpeg, mpegversion=(int){ 4, [ 1, 2 ] }, systemstream=(boolean)false;
> > makes it impossible to not have any intelligence in the front-end/package
> > handling system.
> > 
> > In Fedora we transform it like so:
> > gstreamer0.10(decoder-video/mpeg)(mpegversion=1)(systemstream=false)()(64bit)  
> > gstreamer0.10(decoder-video/mpeg)(mpegversion=2)(systemstream=false)()(64bit)  
> > gstreamer0.10(decoder-video/mpeg)(mpegversion=4)(systemstream=false)()(64bit)  
> > 
> > So you don't need any intelligence in the front-end:
> > $(application) install
> > "gstreamer0.10(decoder-video/mpeg)(mpegversion=1)(systemstream=false)()(64bit)"
> > will install the package that provides this requirement
> 
> Right, intelligence is needed in the front-end. If you don't add any
> intelligence there you will have very large codec informations. How would you
> display caps like "audio/mpeg,mpegversion=(int)[1,4],rate=(int)[16000,32000]"?
> By using 4*16000 different provide lines?

We ignore the rate (and a number of other properties), check the patch.

> > > Debian's multilib support is currently a bit suboptimal but it would work if
> > > the infrastructure supported it correctly. A Debian binary package must only
> > > contain files for one architecture so if a 32 bit application needs some
> > > decoder it will only search in the 32 bit packages.
> > 
> > How do you know for which architecture your provides is for? Eg., if you have
> > both 32-bit and 64-bit repos enabled, how do you know that you should install
> > the 32-bit or the 64-bit package?
> 
> The provides is stored together with the package for which it is. It's either
> for a 32 bit package or for a 64 bit package.

Right. We add that information ourselves in the RPM provides script anyway...

What's the use case for advertising elements in the provides?


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