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First step to allowing access control.
Signed-off-by: Arun Raghavan <arun@arunraghavan.net>
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The idea is to allow some parts of the code to use pa_core as an opaque
structure and access required members via API, over which we can then
perform some form of access control
Signed-off-by: Arun Raghavan <arun@arunraghavan.net>
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The alsa card hasn't so far set any availability for profiles. That
caused an issue with some HDMI hardware: the sound card has two HDMI
outputs, but only the second of them is actually usable. The
unavailable port is marked as unavailable and the available port is
marked as available, but this information isn't propagated to the
profile availability. Without profile availability information, the
initial profile policy picks the unavailable one, since it has a
higher priority value.
This patch adds simple logic for marking some profiles unavailable:
if the profile only contains unavailable ports, the profile is
unavailable too. This can be improved in the future so that if a
profile contains sinks or sources that only contain unavailable ports,
the profile should be marked as unavailable. Implementing that
requires adding more information about the sinks and sources to
pa_card_profile, however.
BugLink: https://bugzilla.yoctoproject.org/show_bug.cgi?id=8448
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It's not being used any more.
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I want module-alsa-card to set the availability of unavailable
profiles before the initial card profile gets selected, so that the
selection logic can use correct availability information.
module-alsa-card initializes the jack state after calling
pa_card_new(), however, and the profile selection happens in
pa_card_new(). This patch solves that by moving parts of pa_card_new()
to pa_card_choose_initial_profile() and pa_card_put().
pa_card_choose_initial_profile() applies the profile selection policy,
so module-alsa-card can first call pa_card_new(), then initialize the
jack state, and then call pa_card_choose_initial_profile(). After that
module-alsa-card can still override the profile selection policy, in
case module-alsa-card was loaded with the "profile" argument. Finally,
pa_card_put() finalizes the card creation.
An alternative solution would have been to move the jack
initialization to happen before pa_card_new() and use pa_card_new_data
instead of pa_card in the jack initialization code, but I disliked
that idea (I want to get rid of the "new data" pattern eventually).
The order in which the initial profile policy is applied is reversed
in this patch. Previously the first one to set it won, now the last
one to set it wins. I think this is better, because if you have N
parties that want to set the profile, we avoid checking N times
whether someone else has already set the profile.
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There is currently no use for allowing modules to cancel card creation,
and I don't see need for that in the future either. Let's simplify
things by removing the failure handling code.
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If we can't fulfill the user request fully, I think we shouldn't
fulfill it at all, to make it clear that the requested operation
didn't succeed.
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Signed-off-by: Ahmed S. Darwish <darwish.07@gmail.com>
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This allows us to parse an extra set of modargs to tack on to an
existing set. Duplicates in the second set are ignored, since this fits
our use best. In the future, this could be extended to support different
merge modes (ignore dupes vs. replace with dupes), but I've left this
out since there isn't a clear need and it would be dead code for now.
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This allows us to clean up ucm port data associated with a port during
port clean up, instead of having to track this separately using a
dynarray.
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This will be needed if the implementation data stores pointers to
additional data that needs to be freed as well.
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Renamed all variables pertaining to latency offsets of sinks and sources,
calling them "port_latency_offset" or similar instead. All of these variables
refer to latency offsets inherited from ports, rather than being unique to
the sinks or sources themselves.
This change is to pave the way for additional functionality for setting
latency offsets on sources and sinks independenly from the value they inherit
from their port. In order to implement them we first need this rename so that
the two latency offsets can be stored individually and summed when reporting
the total latency of the source or sink.
The renames made are:
pa_sink_set_latency_offset() -> pa_sink_set_port_latency_offset()
pa_source_set_latency_offset() -> pa_source_set_port_latency_offset()
sink->latency_offset -> sink->port_latency_offset
sink->thread_info.latency_offset -> sink->thread_info.port_latency_offset
source->latency_offset -> source->port_latency_offset
source->thread_info.latency_offset -> source->thread_info.port_latency_offset
PA_SINK_MESSAGE_SET_LATENCY_OFFSET -> PA_SINK_MESSAGE_SET_PORT_LATENCY_OFFSET
PA_SOURCE_MESSAGE_SET_LATENCY_OFFSET -> PA_SOURCE_MESSAGE_SET_PORT_LATENCY_OFFSET
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The first mic channel position is not relevant for the target
direction definition.
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Unlike pa_sink_set_port(), which calls pa_sink_set_latency_offset() to update
the latency offset of the sink to match that of its newly set port,
pa_source_set_port() did not do so. This patch adds the appropriate call to
pa_source_set_latency_offset() in pa_source_set_port() to fix this.
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We don't actually use the refcounting bits.
Signed-off-by: Arun Raghavan <arun@arunraghavan.net>
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Signed-off-by: Arun Raghavan <arun@arunraghavan.net>
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Signed-off-by: Arun Raghavan <arun@arunraghavan.net>
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Signed-off-by: Arun Raghavan <arun@arunraghavan.net>
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Signed-off-by: Arun Raghavan <arun@arunraghavan.net>
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Signed-off-by: Arun Raghavan <arun@arunraghavan.net>
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Also add a test for this case.
Signed-off-by: Arun Raghavan <arun@arunraghavan.net>
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json-c has a symbol clash (json_object_get_type) with json-glib (which
at least a number of our GNOME clients use). This patch moves to our own
JSON parser so that we can avoid this kind of situation altogether.
Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=95135
Signed-off-by: Arun Raghavan <arun@arunraghavan.net>
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Adding this to be able to drop dependency on json-c.
Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=95135
Signed-off-by: Arun Raghavan <arun@arunraghavan.net>
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Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=95432
Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Signed-off-by: Arun Raghavan <arun@arunraghavan.net>
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Sink(-input) and source(-output) called unlink function when reference
count dropped to zero. This would result in unlink hooks being called
with an object having a reference count of zero, and this is not a
situation we want modules to have to deal with. It is better to just
remove the redundant unlinking code from sink(-input) and
source(-output) and assert on reference count in unlink functions as well.
It is expected that in well behaving code the owner of an object will
always unlink the object before unreferencing.
Signed-off-by: Arun Raghavan <arun@arunraghavan.net>
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Setting the font-size CSS property on a widget overrides the system
font-size, and since qpaeq provides no mechanism for setting the
application's font-size, we should not do this.
This commit also removes the font-size property from commented-out calls to
setStyleSheet() so that if these are ever reinstated, this behaviour is
not reintroduced.
Signed-off-by: Arun Raghavan <arun@arunraghavan.net>
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LADSPA allows float format only, but module-ladspa-sink possibly
could be loaded with ***any*** 'format' parameter. Therefore noisy
sound heard. This patch avoids to be configured as invalid format.
Signed-off-by: KimJeongYeon <jeongyeon.kim@samsung.com>
Signed-off-by: Arun Raghavan <arun@arunraghavan.net>
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- Assert that the search string isn't empty.
- Add test.
- Improve documentation.
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While investigating bug 95352, I noticed that
pa_pstream_set_revoke_callback() and pa_pstream_set_release_callback()
were identical - both set the release callback.
pa_pstream_set_revoke_callback() was obviously broken - it was setting
the wrong callback.
The only place where set_revoke_callback() is called is in
protocol-native.c. The code there looks like this:
pa_pstream_set_revoke_callback(c->pstream, pstream_revoke_callback, c);
pa_pstream_set_release_callback(c->pstream, pstream_release_callback, c);
Since set_release_callback() is called last, the release callback gets
set correctly. The only problem is that the revoke callback stays
unset. What are the consequences of that? The code that calls the
revoke callback looks like this:
if (p->revoke_callback)
p->revoke_callback(p, block_id, p->revoke_callback_userdata);
else
pa_pstream_send_revoke(p, block_id);
So the intended callback is replaced with a pa_pstream_send_revoke()
call. What does the intended callback, that doesn't get called, do?
if (!(q = pa_thread_mq_get()))
pa_pstream_send_revoke(p, block_id);
else
pa_asyncmsgq_post(q->outq, PA_MSGOBJECT(userdata), CONNECTION_MESSAGE_REVOKE, PA_UINT_TO_PTR(block_id), 0, NULL, NULL);
So the native protocol's revoke callback is anyway going to call
pa_pstream_send_revoke() when called from the main thread. If the
revoking is done from an IO thread, an asynchronous message is sent to
the main thread instead, and the message handler will then call
pa_pstream_send_revoke().
In conclusion, the only effect of this bug was that
pa_pstream_send_revoke() was sometimes being called from an IO thread
when it should have been called from the main thread. I don't know if
this caused the crash in bug 95352. Probably not.
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If a card has been hot-plugged after pulseaudio start, alsa-lib still has
old configuration in memory, which doesn't have PCM definitions for the
new card. Thus, this error appears, and the device doesn't work:
I: [pulseaudio] (alsa-lib)confmisc.c: Unable to find definition 'cards.USB-Audio.pcm.front.0:CARD=0'
I: [pulseaudio] (alsa-lib)conf.c: function snd_func_refer returned error: No such file or directory
I: [pulseaudio] (alsa-lib)conf.c: Evaluate error: No such file or directory
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM front:0
I: [pulseaudio] alsa-util.c: Error opening PCM device front:0: No such file or directory
The snd_config_update_free_global() function makes alsa-lib forget any
cached configuration and reparse all PCM definitions from scratch next
time it is told to open anything.
The trick has been copied from Phonon.
Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=54029
Signed-off-by: Alexander E. Patrakov <patrakov@gmail.com>
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Signed-off-by: Arun Raghavan <git@arunraghavan.net>
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For various use-cases a passthrough stream should have priority over all
other streams and get exclusive access to the sink regardless of whether
any other streams are playing.
An example use-case is ensuring Kodi can successfully start video
playback (with passthrough) even if an external notification sound
happened to be playing at the same time.
Signed-off-by: Arun Raghavan <git@arunraghavan.net>
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This makes it easier to read and cleaner in general.
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We were missing a case where a property is first set, and then cleared
by setting a NULL value.
Signed-off-by: Arun Raghavan <arun@arunraghavan.net>
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As reported by valrgrind
==30002== Conditional jump or move depends on uninitialised value(s)
==30002== at 0x5CB883C: pa_cmsg_ancil_data_close_fds (pstream.c:193)
==30002== by 0x5CBB161: do_write (pstream.c:759)
==30002== by 0x5CB8B51: do_pstream_read_write (pstream.c:233)
==30002== by 0x5CB8EE8: io_callback (pstream.c:279)
...
The pa_cmsg_ancil_data structure has two main guards:
'creds_valid', which implies that it holds credentials
information, and 'nfd', which implies it holds file descriptors.
When code paths create a credentials ancillary data structure,
they just set the 'nfd' guard to zero. Typically, the rest of
pa_cmsg_ancil_data fields related to fds are _all_ left
_uninitialized_.
pa_cmsg_ancil_data_close_fds() has broken the above contract:
it accesses the new 'close_fds_on_cleanup' flag, which is related
to file descriptors, without checking the 'nfd == 0' guard first.
Fix this inconsistency.
Reported-by: Alexander E. Patrakov <patrakov@gmail.com>
Signed-off-by: Ahmed S. Darwish <darwish.07@gmail.com>
Signed-off-by: Arun Raghavan <arun@arunraghavan.net>
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As shown by valgrind
==10615== Conditional jump or move depends on uninitialised value(s)
==10615== at 0x5CC0483: shm_marker_size (shm.c:97)
==10615== by 0x5CC1685: shm_attach (shm.c:381)
==10615== by 0x5CC1990: pa_shm_cleanup (shm.c:453)
==10615== by 0x5CC068E: sharedmem_create (shm.c:150)
...
Solution is to fix the shm_marker_size() signature itself: At
certain code paths like shm_attach(), we don't want to initialize
_any_ field in the passed SHM segment descriptor except after
making sure all error exit conditions have been passed.
Reported-by: Alexander E. Patrakov <patrakov@gmail.com>
Signed-off-by: Ahmed S. Darwish <darwish.07@gmail.com>
Signed-off-by: Arun Raghavan <arun@arunraghavan.net>
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We ended up dealing with it once in module init, and once more in the
new module callback. Avoiding it in the second case by name seems to be
the cleanest solution (else, we need to store the module index somewhere
in pa_dbusiface_core, which seems about as bad).
Signed-off-by: Arun Raghavan <arun@arunraghavan.net>
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Commit ae415b07a07c9fe70714d01c91980edb25d966de ("dbus: Use hooks for
module new and removed events") changed the new module monitoring from
the asynchronous subscription system. Previously handle_load_module()
created the new pa_dbusiface_module object before we got
a notification of the loading of the module, but now we get the
notification already within the pa_module_load() call. That resulted
in a crash, because the module_new_cb() created the
pa_dbusiface_module object before pa_module_load() returned, and then
handle_load_module() would create another pa_dbusiface_module object
for the same module.
This patch removes the pa_dbusiface_module_new() call from
handle_load_module(). module_new_cb() is now responsible for all
pa_dbusiface_module object creations, except the ones that are created
during the initialization of module-dbus-protocol.
Signed-off-by: Arun Raghavan <arun@arunraghavan.net>
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Fix memory leak in pa_resampler_new() in resampler.c, Deallocating
memory of r->lfe_filter in case of fail.
Signed-off-by: Arun Raghavan <arun@arunraghavan.net>
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The current LFE crossover filter removes low frequencies from the main
channels and puts them into the LFE channel with the wrong amplitude.
It is not known for sure what is the correct relative amplitude (acoustic
measurements are required with real hardware), and changing that might
introduce a new bug, "it clips the LFE channel".
So just disable the feature by default until a better understanding
emerges how it should work. This, essentially, returns the defaults
to their state as of PulseAudio 6.0.
Some more observations:
- Most of available active analog speakers on the market do the
necessary crossover filtering already, and HDMI receivers can be
configured to do that, too, so a crossover filter in PulseAudio is
harmful in these use cases.
- The "laptop with a builtin subwoofer" use case requires manual
configuration anyway because the default crossover frequency (120 Hz) is
wrong for laptop speakers.
- Finally, Windows 10 with a built-in USB audio driver does not synthesize
the LFE channel given a 5.1 card and a stereo audio stream by default.
Hides: https://bugs.freedesktop.org/show_bug.cgi?id=95021
Signed-off-by: Alexander E. Patrakov <patrakov@gmail.com>
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ffmpeg_data was not freed properly before return due to error.
It is now freed properly.
BugLink: https://bugs.freedesktop.org/show_bug.cgi?id=95347
Signed-off-by: Sachin Kumar Chauhan <sachin.kc@samsung.com>
Signed-off-by: Arun Raghavan <arun@arunraghavan.net>
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Signed-off-by: Arun Raghavan <arun@arunraghavan.net>
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This is needed so we don't keep stale jack availability information
while the card is suspended.
Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=93259
Signed-off-by: Arun Raghavan <arun@arunraghavan.net>
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See the big comment in the code for more details.
BugLink: https://bugs.freedesktop.org/show_bug.cgi?id=93259
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Dynamic memory allocated to 'module_name' and 'fltr' was being leaked.
Its now freed properly before return.
BugLink: https://bugs.freedesktop.org/show_bug.cgi?id=95293
Signed-off-by: Sachin Kumar Chauhan <sachin.kc@samsung.com>
Signed-off-by: Arun Raghavan <arun@arunraghavan.net>
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Rather than entirely ignore streams for which we have automatically
loaded a filter, this makes module-device-manager only avoid rerouting
such streams within their existing filter hierarchy.
If, for example, m-d-m decided to move a stream which is currently
routed to speakers/mic which we requested echo cancellation for, to a
USB headset, the previous logic would disallow such a move even though
it was legitimate.
Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=93443
Signed-off-by: Arun Raghavan <git@arunraghavan.net>
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This adds an ignore mechanism to module-device-manager and uses that
from within module-filter-apply, rather than having m-d-m have knowledge
of anything related to m-f-a.
Signed-off-by: Arun Raghavan <git@arunraghavan.net>
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We never actually pass restore=true, so might as well remove any code
that deals with that case.
Signed-off-by: Arun Raghavan <git@arunraghavan.net>
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