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scripts: Fix autoswitch BT profile when using filters

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If a source filter is used, the BT profile autoswitch does not work because
WirePlumber thinks there is always a client capturing audio from it. This patch
fixes the issue by recursively walking through the source filters that are
linked to the BT loopback source until a stream is found. If a stream is found
at the end of the chain, then it switches to HSP/HFP profile, if the stream is
not found, the profile stays to A2DP.
This commit is contained in:
Julian Bouzas 2024-06-06 17:05:18 -04:00
parent 789b526c61
commit eb707096f7
1 changed files with 32 additions and 4 deletions
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36
src/scripts/device/autoswitch-bluetooth-profile.lua
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@ -71,15 +71,27 @@ streams_om = ObjectManager {
Interest {
type = "node",
Constraint { "media.class", "matches", "Stream/Input/Audio", type = "pw-global" },
Constraint { "node.link-group", "-", type = "pw" },
Constraint { "stream.monitor", "!", "true", type = "pw" },
Constraint { "bluez5.loopback", "!", "true", type = "pw" }
}
}
filter_nodes_om = ObjectManager {
Interest {
type = "node",
Constraint { "node.link-group", "+", type = "pw" },
Constraint { "stream.monitor", "!", "true", type = "pw" },
Constraint { "bluez5.loopback", "!", "true", type = "pw" },
}
}
loopback_nodes_om = ObjectManager {
Interest {
type = "node",
Constraint { "media.class", "matches", "Audio/Source", type = "pw-global" },
Constraint { "node.link-group", "+", type = "pw" },
Constraint { "stream.monitor", "!", "true", type = "pw" },
Constraint { "bluez5.loopback", "=", "true", type = "pw" },
}
}
@ -342,6 +354,24 @@ local function checkStreamStatus (stream)
return dev_id
end
else
-- Check if it is linked to a filter main node, and recursively advance if so
local filter_main_node = filter_nodes_om:lookup {
Constraint { "bound-id", "=", peer_id, type = "gobject" }
}
if filter_main_node ~= nil then
-- Now check the all stream nodes for this filter
local filter_link_group = filter_main_node.properties ["node.link-group"]
for filter_stream_node in filter_nodes_om:iterate {
Constraint { "media.class", "matches", "Stream/Input/Audio", type = "pw-global" },
Constraint { "node.link-group", "=", filter_link_group, type = "pw" }
} do
local dev_id = checkStreamStatus (filter_stream_node)
if dev_id ~= nil then
return dev_id
end
end
end
end
end
@ -407,10 +437,7 @@ SimpleEventHook {
local in_id = tonumber(p["link.input.node"])
local out_id = tonumber(p["link.output.node"])
local stream_id = tonumber(stream["bound-id"])
local bt_node = loopback_nodes_om:lookup {
Constraint { "bound-id", "=", out_id, type = "gobject" }
}
if in_id == stream_id and bt_node ~= nil then
if in_id == stream_id then
handleStream (stream)
end
end
@ -435,5 +462,6 @@ SimpleEventHook {
devices_om:activate ()
streams_om:activate ()
filter_nodes_om:activate ()
loopback_nodes_om:activate()