pulseaudio -> pipewire
PULSE_* -> ACP_*

Hopefully this does not interfere with pulseaudio anymore.

See #436

Use the configured fd in the source for reading and writing because
the transport might be disconnected and cleared from the main thread
at any time.

Marijn Suijten authored Dec 09, 2020 and Wim Taymans committed Dec 14, 2020

Config files read from this variable - currently only media-session.d -
do not get copied to the build directory but are only ever copied during
install. In order to have media-session.d/with-pulseaudio detected when
`make run`'ing from the build directory PIPEWIRE_CONFIG_DIR must point
to the source directory containing these files.

Marijn Suijten authored Dec 08, 2020 and Wim Taymans committed Dec 14, 2020

The root of the build directory does not contain modules, these reside
in src/modules/.

The null sink pulls in data and provides data after it got the
data in _process.

See #472 #442

We then remap the tmp array to the destination array.

Fixes #477

ldac frames are larger and need more space.

See #449

Fixes #399

For batch devices that are not usb devices, lower the period and
add an extra period of heardoom to avoid xruns.

See !330

Make the format_info const in codec_init, we just need to read the
final negotiated format in some cases.
Add some more ldac bit depths we support.

Don't read too large chunks from the ringbuffer but in minreq
increments. This is more what pulseaudio does.

Fixes #463

Otherwise the item is overwritten with the next entry and we should
not clear it.

Move higher quality codecs first.

Until we get assigned to a driver, use our own activation position
to report samplerate and buffer size.

When we update the quality, get the new num_blocks.
Set the channel positions correctly.

Frédéric Danis authored Dec 08, 2020 and Wim Taymans committed Dec 09, 2020

oFono tries to use the best codec when setting up the audio connection, so
the codec to use is known during call to `acquire` function, after the
transport has been created.
To get the codec before creating the transport, an audio connection is
set-up and discarded during `ofono_audio_card_found()`. It should return
the best codec available, which should not change during the time the
remote is connected.

mSBC can be enabled by passing "bluez5.msbc-support=true" parameter to
pipewire-media-session.
mSBC is automatically selected if remote device supports it.

Use these commands to mark the begin and end of a series of Param
enumerations and configuration, like when doing format negotiation. The
idea is that the device can remain open while we do this.
Use this in adapter when negotiating a format.

So that we don't need to keep asking when it didn't change.

Fixes #455

When nothing else is specified, suggest the max number of channels
for a device.

See #467

Makes Teamspeak work

Fixes #462

channel_map contains pulseaudio channel names, convert them to
pipewire channel ids and then into pipewire channel names for the
null sink.

Andres Freund authored Dec 06, 2020 and Wim Taymans committed Dec 07, 2020

In particular ACP_PATHS_DIR, ACP_PROFILES_DIR ended up pointing to the
build directory, despite only existing in the source directory.

I also adjusted PIPEWIRE_CONFIG_DIR to be explicit about referencing
the build directory, given that the other environment variables are
doing so.

Fixes: #448

We also need to remap channels for the splitter and merger.

Remember the port-config format and its channel layout. Internally,
we use a canonical channel layout which is simply all channels sorted
by id. Remap the channels accordingly.

Fixes #445