This adds code to specifically support legacy entries.
I kept this code in a separate commit so that it can be (relatively)
easily removed at some point in the future.
This has the advantage of allowing versioned updates in the future,
thus allowing us to be more user friendly going forward (as opposed
to just ignoring entries from old versions).
The primary motivation for this, however, is to allow variable length
storage in each entry which will be needed for upcoming work.
At present this commit will ignore any legacy entries but support
for reading and subsequently converting legacy entries will be added
shortly.
This is the beginning of work to support compressed formats natively in
PulseAudio. This adds a pa_stream_new_extended() that takes a format
structure, sends it to the server (=> protocol extension) and has the
server negotiate with the appropropriate sink to figure out what format
it should use.
This is work in progress, and works only with PCM streams. Actual
compressed format support in some sink needs to be implemented, and
extensive testing is required.
More details on how this is supposed to work is available at:
http://pulseaudio.org/wiki/PassthroughSupport
If m-s-r sets the device we let it do so. Otherwise we handle the routing. We run before
module-intended-roles as the priority list will likely be configured appropriately
to do the same job, albeit with manual setup.
If the user has not (via our protocol extension) renamed a device, but it happens to now have
a different name (e.g. module-combine automatically updating the description for us or udev-db
getting better etc.) then make sure we update our cache with this updated version.
If the user has set a name, enforce it's use, even if the description is updated by some other
means (e.g. the user manually editing the proplist or another module doing it for them).
* Do not read or set the save_sink/save_source flags. This seems to be for module-stream-restore only...
* Even if a sink is already set by an earlier module, still move it to the sink we dictate.
* Fix a s/sink/source/ copy paste issue when dumping the database.
* Only show priority list when routing is enabled (as the list is not updated if not)
* Fix a memory access issue when finding the highest priority sinks/sources
* key name->device name efficiency fix.
* Silence noisy debug on reorder - it seems to work :)
* Reroute after reordering.
* Initialise preferred lists to PA_INVALID_INDEX
We put in the devices from the wire into a hashmap and then add all like type device in the database
and then order them based on priority (with the ones specified on the wire always being in that order at
the top of the list.
We do not handle the _EVENT_NEW subscription here as the PA_CORE_HOOK_SINK_INPUT_NEW/PA_CORE_HOOK_SOURCE_OUTPUT_NEW
hook should handle the initial routing.
This is incomplete, it just adds the slots in question and assigns noops to them.
Some minor cleanup of types.
Due to the priority of the hooks, it seems we can actually coexist with module-stream restore so
the code to detect and unload it will be removed shortly.
The structure itself will contain various bits of info so exposing this fully to the client is a bad idea.
By keeping to a rename operation we keep what we do store abstracted from the clients.
Also fix some doxy comments.
This allows clients to edit the priroity order. What is not yet in place is the initialisation of that priority list
when new devices are detected or the cleaning (remove holes) when devices are removed.
In order to keep the storage transparent I will likely remove the write functionality and replace it with a
simple rename method.
I also still need to expose the priority itself when reading the data.
