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bluez5: use kernel-provided RX timestamps

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Use kernel-provided packet reception timestamps to get less jitter in
packet timings. Mostly matters for ISO/SCO which have regular schedule.

A2DP (L2CAP) doesn't currently do RX timestamps in kernel, but we can as
well use the same mechanism for it.
This commit is contained in:
Pauli Virtanen 2025-03-22 14:18:58 +02:00 • committed by Wim Taymans
parent 081116906d
commit 0d61cc1b1d
8 changed files with 165 additions and 31 deletions
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2
spa/plugins/bluez5/sco-sink.c
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@ -823,7 +823,7 @@ static int transport_start(struct impl *this)
(int64_t)(spa_bt_transport_get_delay_nsec(this->transport) / SPA_NSEC_PER_MSEC));
/* start socket i/o */
if ((res = spa_bt_transport_ensure_sco_io(this->transport, this->data_loop)) < 0)
if ((res = spa_bt_transport_ensure_sco_io(this->transport, this->data_loop, this->data_system)) < 0)
goto fail;
this->flush_timer_source.data = this;