[pulseaudio-discuss] [RFC v2 0/3] Add dynamic configuration of SBC bitpool

Frédéric Danis frederic.danis at collabora.com
Mon May 27 09:14:49 UTC 2019

This series of patch allows to manage the bandwidth used by an A2DP source
using SBC encoder by adding ability to change the bitpool dynamically during
In a crowded environment this can allow to limit interference between source
and headphones.
An external application should be able to control the SBC bitrate of up
to 300 BT transmitters in a noisy and possibly RF perturbed environment, for
which it can get the statistics for dropouts, and if it gets too high,
reduce the quality either globally, or across a physically-adjacent set of

This needs "Message API v2" patches from Georg Chini [1]

I am currently not sure in patch 2 where should occur the SBC bitpool apply.

Since V1:
- Added patch 3 to expose number of bytes skipped for the A2DP connection.

Any comments appreciated.

[1] https://gitlab.freedesktop.org/pulseaudio/pulseaudio/merge_requests/51
Frédéric Danis (3):
  bluetooth: Add message to get/set A2DP codec configs
  bluetooth: Add SBC get/set config message support
  bluetooth: Add skipped bytes statistic message

 src/modules/bluetooth/a2dp-codec-api.h       | 10 ++++
 src/modules/bluetooth/a2dp-codec-sbc.c       | 47 +++++++++++++++
 src/modules/bluetooth/module-bluez5-device.c | 63 ++++++++++++++++++++
 src/pulsecore/core-util.h                    |  7 +++
 4 files changed, 127 insertions(+)


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