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milan-avb: hook stream output to MSRP listener_observed + add max_transit_time_ns

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hackerman-kl 2026-04-26 14:57:24 +02:00 • committed by Wim Taymans
parent a5fbeef6f8
commit 197bab7931
2 changed files with 28 additions and 4 deletions
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23
src/modules/module-avb/msrp.c
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@ -222,12 +222,27 @@ static void notify_listener(struct msrp *msrp, uint64_t now, struct attr *attr,
else if (notify == AVB_MRP_NOTIFY_LEAVE)
stream_out->listener_observed = false;
/* listener_observed flips flags_ex.REGISTERING in the
* GET_STREAM_INFO answer (Milan Table 5.12). Hint AECP to
* re-emit so controllers see the update. */
if (prev != stream_out->listener_observed)
if (prev != stream_out->listener_observed) {
/* listener_observed flips flags_ex.REGISTERING in the
* GET_STREAM_INFO answer (Milan Table 5.12). Hint AECP
* to re-emit so controllers see the update. */
avb_aecp_aem_mark_stream_info_dirty(msrp->server,
AVB_AEM_DESC_STREAM_OUTPUT, s->index);
/* Milan Section 4.3.3.1: a foreign Listener registration is the
* "matching declaration" condition for starting AVTP TX.
* Activate the data plane on false→true; tear it down on
* true→false. The internal source/!source guards make the
* calls idempotent against the listener_observed bit, so a
* spurious flip won't double-start. */
if (stream_out->listener_observed) {
if (s->source == NULL)
stream_activate(s, s->index, now);
} else {
if (s->source != NULL)
stream_deactivate(s, now);
}
}
}
}