[gst-devel] can playbin handle the sink with decoding functions?

[Donny Viszneki]

On Fri, Feb 20, 2009 at 8:28 PM, Liang Zhao <liangzhao.bit at gmail.com> wrote:
> If I have a audio sink with decoding functions, that means this audiosink
> can decode encoded data and render it to audio device. Can playbin handle
> this type audio sink well?

Probably not.

> From code, I find playbin is using decodebin to build pipeline, and
> decodebin finds decoders from the caps in registry. In playbin, it will add
> audiobin to route the decoded data to audio sink.  But if the decoder is
> already a sink, the playbin still handles it well?
> I hope guys can give me some helps.

It sounds like you may be working on a gstreamer element for some kind
of hardware decoder on a display adapter (video card.)

The *most* ideal way to do this (IMHO) would be to use new caps to
represent the APIs needed to move data in or out of this special area
(the video card.) This would be a good first step IMO toward getting
the GStreamer developers to include support for such a thing in
official GStreamer playbin elements.

I can't really speak on behalf of the GStreamer guys, but if they are
similar open source advocates as I am, they probably are not too
excited to support something like, say, a hardware DVD decoder.

Can you tell us more about what you're working on?

-- 
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