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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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7
spa/plugins/bluez5/defs.h
View file

@ -584,9 +584,10 @@ struct spa_bt_iso_io;
struct spa_bt_sco_io;
struct spa_bt_sco_io *spa_bt_sco_io_create(struct spa_bt_transport *transport, struct spa_loop *data_loop, struct spa_log *log);
struct spa_bt_sco_io *spa_bt_sco_io_create(struct spa_bt_transport *transport, struct spa_loop *data_loop,
struct spa_system *data_system, struct spa_log *log);
void spa_bt_sco_io_destroy(struct spa_bt_sco_io *io);
void spa_bt_sco_io_set_source_cb(struct spa_bt_sco_io *io, int (*source_cb)(void *userdata, uint8_t *data, int size), void *userdata);
void spa_bt_sco_io_set_source_cb(struct spa_bt_sco_io *io, int (*source_cb)(void *userdata, uint8_t *data, int size, uint64_t rx_time), void *userdata);
void spa_bt_sco_io_set_sink_cb(struct spa_bt_sco_io *io, int (*sink_cb)(void *userdata), void *userdata);
int spa_bt_sco_io_write(struct spa_bt_sco_io *io, uint8_t *data, int size);
@ -703,7 +704,7 @@ bool spa_bt_transport_volume_enabled(struct spa_bt_transport *transport);
int spa_bt_transport_acquire(struct spa_bt_transport *t, bool optional);
int spa_bt_transport_release(struct spa_bt_transport *t);
int spa_bt_transport_keepalive(struct spa_bt_transport *t, bool keepalive);
int spa_bt_transport_ensure_sco_io(struct spa_bt_transport *t, struct spa_loop *data_loop);
int spa_bt_transport_ensure_sco_io(struct spa_bt_transport *t, struct spa_loop *data_loop, struct spa_system *data_system);
#define spa_bt_transport_emit(t,m,v,...) spa_hook_list_call(&(t)->listener_list, \
struct spa_bt_transport_events, \