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node/software-dsp: ensure that filter chains are properly unloaded

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Indexing into the subject from a node-removed event is slightly quirky.
As a result, we were not properly freeing filter chains tied to
disconnected nodes.

Change how we store the list of loaded filters and ensure they
are properly freed when their parent node is removed from the graph.

Signed-off-by: James Calligeros <jcalligeros99@gmail.com>
This commit is contained in:
James Calligeros 2024-06-08 20:40:51 +10:00 • committed by George Kiagiadakis
parent eb707096f7
commit f57a46308d
1 changed files with 7 additions and 6 deletions
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13
src/scripts/node/software-dsp.lua
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@ -34,7 +34,7 @@ SimpleEventHook {
if props["filter-graph"] then
log:debug("Loading filter graph for " .. node.properties["node.name"])
filter_nodes[node.properties["object.id"]] = LocalModule("libpipewire-module-filter-chain", props["filter-graph"], {})
filter_nodes[node.id] = LocalModule("libpipewire-module-filter-chain", props["filter-graph"], {})
elseif props["filter-path"] then
log:debug("Loading filter graph for " .. node.properties["node.name"] .. " from disk")
local conf = Conf(props["filter-path"], {
@ -44,7 +44,7 @@ SimpleEventHook {
local err = conf:open()
if not err then
local args = conf:get_section_as_json("node.software-dsp.graph"):to_string()
filter_nodes[node.properties["object.id"]] = LocalModule("libpipewire-module-filter-chain", args, {})
filter_nodes[node.id] = LocalModule("libpipewire-module-filter-chain", args, {})
else
log:warning("Unable to load filter graph for " .. node.properties["node.name"])
end
@ -57,7 +57,7 @@ SimpleEventHook {
client:update_permissions{ [node["bound-id"]] = "-" }
end
end
hidden_nodes[node["bound-id"]] = node.properties["object.id"]
hidden_nodes[node["bound-id"]] = node.id
end
end
end)
@ -73,9 +73,10 @@ SimpleEventHook {
},
execute = function(event)
local node = event:get_subject()
if filter_nodes[node.properties["object.id"]] then
log:debug("Freeing filter graph on disconnected node " .. node.properties["node.name"])
filter_nodes[node.properties["object.id"]] = nil
if filter_nodes[node.id] then
log:debug("Freeing filter on node " .. node.id)
filter_nodes[node.id] = nil
hidden_nodes[node["bound-id"]] = nil
end
end
}:register()