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bluez5: ensure capture target latency is uniform for an ISO group

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All BAP client sources in the ISO group should use same target latency,
so that capture streams stay in sync.
This commit is contained in:
Pauli Virtanen 2025-07-12 13:40:54 +03:00 • committed by Wim Taymans
parent 396d37594c
commit 7e04f8fe44
4 changed files with 60 additions and 11 deletions
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22
spa/plugins/bluez5/media-source.c
View file

@ -843,8 +843,10 @@ static int do_start_sco_iso_io(struct spa_loop *loop, bool async, uint32_t seq,
if (this->transport->sco_io)
spa_bt_sco_io_set_source_cb(this->transport->sco_io, media_sco_pull, this);
if (this->transport->iso_io)
if (this->transport->iso_io) {
spa_bt_iso_io_set_cb(this->transport->iso_io, media_iso_pull, this);
spa_bt_iso_io_set_source_buffer(this->transport->iso_io, &this->port.buffer);
}
return 0;
}
@ -1008,8 +1010,10 @@ static int do_remove_source(struct spa_loop *loop,
if (this->timer_source.loop)
spa_loop_remove_source(this->data_loop, &this->timer_source);
if (this->transport && this->transport->iso_io)
if (this->transport && this->transport->iso_io) {
spa_bt_iso_io_set_cb(this->transport->iso_io, NULL, NULL);
spa_bt_iso_io_set_source_buffer(this->transport->iso_io, NULL);
}
if (this->transport && this->transport->sco_io)
spa_bt_sco_io_set_source_cb(this->transport->sco_io, NULL, NULL);
set_timeout(this, 0);
@ -1646,9 +1650,19 @@ static void update_target_latency(struct impl *this)
if (this->transport == NULL || !port->have_format)
return;
if (this->codec->kind != MEDIA_CODEC_BAP)
return;
if (this->codec->kind != MEDIA_CODEC_BAP || this->is_input ||
this->transport->delay_us == SPA_BT_UNKNOWN_DELAY)
if (this->is_input) {
/* BAP Client. Should use same buffer size for all streams in the same
* group, so that capture is in sync.
*/
if (this->transport->iso_io)
spa_bt_iso_io_update_source_latency(this->transport->iso_io);
return;
}
if (this->transport->delay_us == SPA_BT_UNKNOWN_DELAY)
return;
get_samples(this, &duration);