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| author |   James O'Shannessy <james.oshannessy@fiberdyne.com.au> | 2018-09-13 17:20:37 -0700 |
|---|---|---|
| committer |   Mark Farrugia <mark.farrugia@fiberdyne.com.au> | 2018-10-26 17:27:44 +1100 |
| commit | 7e4db2ff6865d723a2a6233a9542730876d06260 (patch) | |
| tree | 91d37a48772711cd9a3ad85195799cd356377f12 /docs/1. Introduction.md | |
| parent | 83ab0cdf84def71eebdebf0c813cebfce8f99d06 (diff) | |
Updating build instructions
Cleaning up build instructions for building AVIRT
Signed-off-by: James O'Shannessy <james.oshannessy@fiberdyne.com.au>
Diffstat (limited to 'docs/1. Introduction.md')
| -rw-r--r-- | docs/1. Introduction.md | 21 |
1 files changed, 8 insertions, 13 deletions
diff --git a/docs/1. Introduction.md b/docs/1. Introduction.md index f2d088d..29cac71 100644 --- a/docs/1. Introduction.md +++ b/docs/1. Introduction.md @@ -1,18 +1,13 @@ Introduction =================== -## Problem -- Insecure -- Limited -- Not fully optimised for use case (ie. Routing Audio to DSP vs. Loopback) -- Not generic interface for highly configurable hardware -- +The ALSA Virtual Sound Driver (AVIRT) aims to provide a Linux kernel solution to the issue of audio routing in kernel-space, as well as security per-stream, and dynamic configuration of streams at the kernel level. -## Solution +A top-level abstract dynamic audio driver is presented to the user-space via an ALSA middle-layer card. From there, respective low-level "real" audio drivers can subscribe to it as an "Audio Path". -## Added Features -- Dynamic Runtime Alsa Front end -- Adjustable Audio Path -- Mappable Audio Path -- Secure Audio Routing w/ SMACK --
\ No newline at end of file +The top-level driver is configured (currently) using module parameters, as is the norm for sound drivers in the Linux tree, however this will utilise a configfs configuration implementation in future. + +A sample dummy Audio Path is provided as an example to show how a low-level audio driver would subscribe to AVIRT, and accept audio routing for playback. + +Currently, the Fiberdyne DSP hardmixer is supported on the Renesas R-Car M3 AGL +reference platform, and a default loopback softmixer is in development.
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