[alsa-devel] [RFC/PATCH v6 03/12] media: Entities, pads and links

Mark Brown broonie at opensource.wolfsonmicro.com
Thu Nov 25 16:35:46 CET 2010

On Thu, Nov 25, 2010 at 04:29:53PM +0100, Laurent Pinchart wrote:

> It depends on how you define nodes. I can certainly imagine a graph with 100 
> controls, but maybe several controls can be part of the same node ? On the 
> video side we've decided to split entities depending on the possible data 
> paths configurations. As I'm not a fluent ascii-art speaker, please have a 
> look at pages 4 and 5 of http://www.ideasonboard.org/media/20101103-lpc-
> media.pdf

Please take a look at:


for an example of a modern smartphone CODEC.  This has in the ballpark
of 75-100 nodes (I've not counted exactly) represented in the routing
graph in the driver today.  This does not include any audio routing
available in other components such as the CPU.

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