For debugging, it may be useful to disable some of the codecs. Enable
configuring this in config file, to make it more convenient for users,
who may not know how to recompile/install pipewire.
Remove wrong adjustment to the write timeout with mSBC.
The time between writes should be the 7.5ms at which we encode, which is
correct even when the frames get fragmented to incommensurate tx packets
(on USB BT adapters).
Fixes sound on RTL8176B. This adapter has large reported write_mtu, so
the wrong delay affected it.
This waits for codec negotiation completion, i.e. on `SLC` completion if
codec negotiation is not supported or on `AT+BCS` reception if codec
negotiation is supported, before creating the `spa_bt_transport`
Set form factor, name routes based on form factor.
Improve profile names
Make card and node names like pulseaudio, with bt address in them.
Fill in port type in the route info.
Fixes#544
Implement routes on the device. This makes it possible for the
session manager to restore the device volumes.
Use validate_config to get the negotiated channels for the route
volumes.
SCO socket connect may fail with ECONNABORTED if it is done too soon
after previous close. To avoid this in cases where nodes are toggled
between stopped/started rapidly, postpone release until the transport
has remained unused for a time. Since this behavior appears common to
multiple SCO backends, do it for all SCO backends.
Move SCO polling to a single place, and abstract mtu handling.
Autodetect suitable tx packet size based on rx, instead of relying on
the kernel providing correct values.
Since the data thread accesses the spa_bt_transport, its destroy event
needs to sync with data thread to avoid races.
Also check transport is present in places that need it.
Simplify mSBC buffer handling and syncing to frame headers to work
on a per-byte basis.
The previous code could terminate with buffer overrun if it encountered
multiple consecutive incomplete packets.
When reusing buffers, do it in the same way as the other sinks.
The previous code did not set a valid next buffer for the i/o,
possibly causing it to hang.
Fixespipewire/pipewire#502.
Also move media application creating from filter callback to initialization.
Application object path and endpoint paths only need to be registered once.
Signed-off-by: Huang-Huang Bao <eh5@sokka.cn>
Backends don't necessarily allow for opening the same device multiple
times, and it shouldn't be necessary.
Since source and sink are not necessarily both running at the same time,
refcount the transport acquire/release so that it knows to close the fd
only when no source/sink is running.
Let the transport manage the fd lifecycle, also closing it once it is
not needed.
Don't return the fd from acquire(), since each transport is associated
with a single socket fd.
