1049480 - Fix volume handling in cubeb's PulseAudio backend: switch to the new Pulse API for volume

Status: NEW

(Core :: Audio/Video: cubeb, defect, P3)

Description

[Paul Adenot (:padenot)]

This is a followup to bug 1049478, it's about implementing the "real" solution with the new API the PulseAudio folks give us.

Comment 1

[Bulk Bug Changes for mreavy's org]

Mass change P2->P3 to align with new Mozilla triage process.

Comment 2

[Matthew Gregan [:kinetik]]

Did PulseAudio ever add new API for this?  It looks like the PA_STREAM_NO_FLAT_VOLUME patch was never merged and I can't see any obviously related PA_STREAM_* flags, was there another proposal?

Comment 3

[Paul Adenot (:padenot)]

I haven't heard of anything.

Comment 4

[Alex Chronopoulos [:achronop]]

I talked to Arun in IRC about it. The bottom line was that the implementation has been delayed due to corner cases of the implementation. The thread [1] will remain the best summary of the current status. Post [2] is the key part of that thread.

Arun summarized that Tanu's proposal at the time was to have a second "relative" volume control on streams, to allow clients to opt out of flat volumes.

[1] https://lists.freedesktop.org/archives/pulseaudio-discuss/2014-August/021082.html
[2] https://lists.freedesktop.org/archives/pulseaudio-discuss/2014-August/021099.html