[gst-devel] GstBaseDecode class

[Stefan Kost]

itoral at igalia.com schrieb:
> Hi all,
>
> I have been developing software on top of gstreamer for some time and now
> I would like to get a bit more close to its internals. With that in mind I
> started reading the plugin developer guide and implemented a few audio and
> video transform plugins to play around with the main concepts.
>
> Lately I've been looking for something that would let me learn more and at
> the same time be helpful to the project, and I found a page with some
> tasks here:
>
> http://gstreamer.freedesktop.org/wiki/TaskList
>
> I think writing base classes would let me achieve both targets, on one
> hand, one has to read an understand how other plugins of a certain type
> work in order to create a base class for them, and on the other hand,
> having base classes would be obviously useful.
>
> Even though I have no experience whatsoever writing source/sink/codec
> plugins, I would like to propose myself to work on this. Actually, out of
> curiosity, I started looking at the code of the mpeg2, ac3 and mad
> decoders and wrote a base class for a decoder based on these. Of course,
> this is far from being anything else than some preliminary code, I have no
> experience whatsoever in writing decoder plugins, so I am sure that I am
> missing many things, but I think it could be a good start.
>   
Cool. Its a good project. Can you share your code. Have you actually
refactored the decoders on the baseclass already? I wonder how much
reusable code you found.

Stefan
> I see for example that work on GstBaseParse has already started using a
> bug in bugzilla to track the implementation so I wonder if work on other
> base classes should be done in the same way.
>
> Also, since I'm quite new to writing gstreamer plugins and have no
> experience writing decoder plugins in particular, I can probably do little
> more than just refactoring common code from other decoders, (which is
> basically what I've done so far). However, looking at other base classes,
> it seems that they actually do more stuff than just refactoring common
> code from other plugins, and I guess the same should be done in any other
> base class. I hope I can get help with that from more experienced people,
> since that is something that goes beyond my current skills, and without
> that I guess a GstBaseDecode would not be all that useful.
>
> I am looking forward to get feedback from you to know how I should
> continue with this work or if you think I should invest my effort in some
> other task more appropriate for  my current skills.
>
> Iago
>
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