On Fri, 2013-10-04 at 16:37 -0500, Pierre-Louis Bossart wrote:
- Effects offload to DSPs with dynamically instantiatable algorithms, and general dynamic DSP firmware handling.
I can try and prepare an overview about what we've started to look at for effect offload. The one thing that's missing from the agenda is that DSP offload and dynamic firmware handling do require control on audio policy (high level arbitration between use cases), audio routing (some paths may not be available at all times) and resource management (memory/MCPS/etc). We not be able to solve this in a generic manner but having hooks to detect/notify a DSP resource is or is not available might be a good thing.
Perhaps I should present our (Murphy[1] team at Intel) plans for the routing infrastructure and policy in PulseAudio? It might be relevant for this, although effect offloading and firmware handling is not something that we have thought about. Even without effect offloading and firmware handling the routing system has to deal with use case prioritizing and constraints regarding what audio paths are available and what paths can be used simultaneously.
BTW, there will also be a Murphy meeting/BoF on Wednesday at 13:00 in the Dunvegan room at the Sheraton hotel next to the conference center. Anyone who's interested in Murphy is welcome to attend. I'd expect there to be a general overview of Murphy from Janos, and I should present the status and plans for the routing work in PulseAudio (perhaps in more detail than in the audio miniconf). Other than that, there's not much else planned, just general Q&A with the Murphy developers (Janos Kovacs and Jaska Uimonen will be present - too bad they couldn't make it to the audio miniconf).
[1] Murphy is the resource policy daemon in Tizen IVI, https://01.org/murphy/