[haiku-bugs] Re: [Haiku] #8476: Spare HDA jacks available - how can we address them?
- From: "ttcoder" <trac@xxxxxxxxxxxx>
- Date: Sun, 03 Jun 2012 13:13:10 -0000
#8476: Spare HDA jacks available - how can we address them?
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Reporter: dsuden | Owner: korli
Type: enhancement | Status: new
Priority: normal | Milestone: R1
Component: Drivers/Audio/HDA | Version: R1/Development
Resolution: | Keywords:
Blocked By: | Blocking:
Has a Patch: 0 | Platform: All
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Comment (by ttcoder):
Here's a snapshot, for the sake of keeping an online summary of off-ticket
discussions:
- a) we clearly want to keep the driver talking to media_server as normal,
and access multi-audio through the media_server only.
- b) turns out the userland code to access multiple streams probably won't
be hard: the e.g. tunetracker code (released under a MIT/BSD license for
other apps to use) which implements targetting a specific audio card
(other than the "main" one) might be used for accessing a specific audio
jack (other than the "line out" one). (<''The multiaudio addon will expose
an input for each stream exposed by the driver. The user can select this
input in the Media preflet for the mixer output.''>)
- c) the key to solving this ticket, thus, is to implement code driver-
side; so that the HDA driver 1) allows for more than just one output
stereo stream, 2) can route that output playback stream to an output
"widget" in HDA parlance and then 3) route that output widget to an output
connector (a jack other than the main output jack).
So it seems out of the above 3 points, #b is something I can handle on my
own and only for #c do we need help. As soon as I have time I'll get back
to reading/understanding the HDA code and see if I can contribute more
than moral encouragement for the "multiple playback streams" ..etc stuff
;-)
--
Ticket URL: <http://dev.haiku-os.org/ticket/8476#comment:12>
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