As BAP server, when we can't satisfy BAP presentation delay, just accept
a bigger latency and emit a warning, instead of having broken audio.
Also make sure it works if quantum is forced to a larger value than our
wanted node.latency.
Take other latencies into account when selecting the wanted node.latency
for BAP Server.
Fix up port.params usage vs. user flag, which is not used here.
Reset decode buffer rate matching if we need to PLC due to underrun so
it doesn't get stuck at playback at increased rate if target is too
small.
For better start synchronization, we should wait until all ISO nodes
that are going to be started finish creating ISO io.
Add a separate ready flag for startup that is set when all Acquire
requests are complete.
Add options to control advertised delays supported.
Smaller delay needs smaller node.latency be used, so use 40ms as a
reasonable minimum preferred delay.
The HSP and HFP profiles expect that a device function only as an audio
gateway or as an headset, which is the normal behavior for a headset,
a hands-free car unit or a phone.
In case of a desktop, it can perform both functionalities, but there's
no interest to get them at the same time as the bidirectional audio
is already supported.
The current implementation only send the +CIEV:<call>,<active> event
if there's an active modem in ModemManager. This may lead to headset
disconnection as in (1) if the profile is by another application than
telephony one, e.g. a conference application/website.
This commit improves dummy call status update by adding a new
"bluez5.disable-dummy-call" props param in bluez5 device, allowing
external application like WirePlumber to set it dynamically.
(1) https://gitlab.freedesktop.org/pipewire/pipewire/-/issues/1744
Fixes: https://gitlab.freedesktop.org/pipewire/pipewire/-/merge_requests/2606
Parse TMAP / GMAP features from MediaEndpoint:SupportedFeatures and pass
them onto the codec in SelectProperties, so it can determine which
mandatory features the device supports.
Add configuration option for specifying which TMAP / GMAP feature bits
we advertise to remote side.
Although some of these could be determined automatically, for production
systems it's better to have explicit option to specify which ones should
be advertised as this may depend on HW capabilities.
The "+BIND: <a>,<state>" reply to AT+BIND? should be sent for every
supported indicator.
"AT+BIEV= <assigned number>,<value>" should only be provided for
enabled indicators. The AG shall respond with an ERROR response code
if it receives updates for disabled or unknown HF indicators or values
that are out of bounds.
This allows to pass PTs tests:
- HFP/AG/HFI/BV-02-C
AG receives an updated HF Indicator value
- HFP/AG/HFI/BI-03-C
AG receives invalid updated HF Indicator values
When releasing multiple transports, call Release() simultaneously
instead of serializing the calls.
This operations still needs to be blocking currently, as all releases
have to finish before we do other state-modifying ops.
This works around broken firmware on Creative Zen Hybrid Pro with BAP,
whose Disable command misbehaves when shutting down sink + source CIS
otherwise. It's also anyway better to shut down everything at once.
Some devices refuse to enable microphone if Streaming Context metadata
is just Unspecified.
Set some reasonable values for the stream context we create along TMAP,
and try follow CAP rules for selecting the PAC.
With BAP codec configuration selection goes via multiple functions,
which will need to maintain some private state.
Adjust media_codec to allow for that.
Use it for get_qos().
Based on HFP specs, the audio connection is independent of the active
call status, which should be managed by the ModemManager part of the
plugin.
But when using HFP AG without modem attached, e.g. during zoom meeting,
the connection will be closed after a while unless call status has been
forced to active,
cf. https://gitlab.freedesktop.org/pipewire/pipewire/-/issues/1744.
Currently and for HFP AG PTS tests requesting to get an audio connection
in 3 seconds after a call activates, this prevent to start audio
connection before starting a call.
This commit prevents to force the call status during audio (dis)connection
if a modem is available.
Get the ModemManager interfaces when the ModemManager starts after native
HFP has started.
Also add log topic to be able to select log level for modemmanager plugin
part.
Flush errqueue for iso-io also from the media-source handler, to avoid
dropping packet tx reports.
This applies to bidirectional streams. The sink/source handlers poll on
different fd, one being dup'd, and epoll does not trigger them in any
specific interleaved order.
`libusb_free_device_list()` should be passed `true` as its second
argument to unreference every single device in the list.
Fixes: 5e0b63b149 ("bluez5: backend-native: use quirks + usb adapter caps for checking msbc")
`dbus_connection_register_object_path()` does not take ownership of the
path passed to it, so currently the callers `telephony_{ag,call}_register()`
leak a copy of the path string. Fix that by not making an unnecessary copy.
Fixes: b28399ac57 ("bluez5: add telephony D-Bus service implementation")
SPA_POD_CHOICE_ENUM_Int must always take at least 2 values as first one
is default. (Just 1 value no longer works on current master, and it's
anyway incorrect.)
Replace with just SPA_POD_Int, as there's just one choice.
In the unknown form-factor case (which I saw on a set of headphones
here, Creative Zen Hybrid Pro), let's avoid an apocryphal acronym in
favour of a term that might be more familiar to the user.
Add a function that accepts the size of the position array when reading
the audio positions. This makes it possible to decouple the position
array size from SPA_AUDIO_MAX_CHANNELS.
Also use SPA_N_ELEMENTS to pass the number of array elements to
functions instead of a fixed constant. This makes it easier to change
the array size later to a different constant without having to patch up
all the places where the size is used.
Move accounting for pending ISO packet to the reference time. Make sure
rate matching is reset on start, and reset matching on resync properly.
Allow resync on first cycle, ok since iso_io->now is valid immediately.
Silence padding larger than ISO packet may be needed for resync when
quantum is large. We can't insert silence by adding data to encoding
buffer, as the encoding buffer may be then too small and it may also be
partially filled.
Fix by inserting silence from flush_data() just before buffers would be
consumed.
Fixes ISO stream alignment at playback start.
If BlueZ doesn't reply, it may consider the operation still active.
Try to Release the transport to get to a known state.
This can happen if device doesn't respond to operations in reasonable
time and BlueZ doesn't have its own timeout which is the case for BAP
currently (which is a bug there).
Log something less confusing when connection to remote device drops
unexpectedly.
Silence logging transport Release() error in cases where the transport
was simultaneously deleted.
When using LC3-24kHz, remote device drops connection after a few seconds
if there is no sink playback. Avoid this by sending silence, one TX
packet for each RX packet, if sink hasn't been feeding data within a
timeout.
Align RX of streams in same ISO group:
- Ensure all streams in ISO group have same target latency also for BAP
Client
- Determine rate matching to ISO group clock from RX times of all
streams in the group
- Based on this, compute nominal packet RX times, and feed them to
decode-buffer instead of the real RX time. This is enough for
sub-sample level sync.
- Customise buffer overrun handling for ISO so that it drops data to
arrive exactly at the target, for faster convergence at RX start
The ISO clock matching is done based on kernel-provided packet RX times,
so it has unknown offset from the actual ISO clock, probably a few ms.
Current kernels (6.17) do not provide anything better to use for the
clock matching, and doing it properly appears to be controller
vendor-defined (if possible at all).
Take resampler delay into account when computing the buffer fill level,
including the fractional part.
If decode-buffer is now fed nominal packet reference times in
write_packet(), it converges the total buffer + resampler latency to the
target at sub-sample accuracy.
This is needed for aligning RX of ISO streams in the same group, so that
e.g. stereo pair alignment is achieved even though the streams have
separate resamplers. Resampler phases get aligned via independent rate
matching.
The rate matching calculations are done in the system clock domain. If
the driver ticks at a different rate, the correction factor needs to be
adjusted by the rate_diff.
setup_matching() also needs to be before spa_bt_decode_buffer_process():
as follower we should use rate matching value calculated on the
*previous* cycle, because this is what driver is doing when it adjusts
it tick rate.
