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152 commits

Author SHA1 Message Date
Olivier Crête
c37e82587c aggregator: Document locking order 
https://bugzilla.gnome.org/show_bug.cgi?id=742684
 2015-02-18 17:20:03 -05:00
Olivier Crête
17df37d8cb aggregator: Rename confusinly named SRC_STREAM_LOCK macros to SRC_LOCK 
This will match the name of the lock itself. It is also not a stream
lock as it not recursive and not held while pushing.

https://bugzilla.gnome.org/show_bug.cgi?id=742684
 2015-02-18 17:20:03 -05:00
Olivier Crête
3a3f2b5343 aggregator: Rename confusingly named stream lock to flush lock 
This lock is not what is commonly known as a "stream lock" in GStremer,
it's not recursive and it's taken from the non-serialized FLUSH_START event.

https://bugzilla.gnome.org/show_bug.cgi?id=742684
 2015-02-18 17:20:03 -05:00
Olivier Crête
36ef8f0bd4 aggregator: Fix macro indendation 
Changes no code

https://bugzilla.gnome.org/show_bug.cgi?id=742684
 2015-02-18 17:20:03 -05:00
Tim-Philipp Müller
282dbcee0b aggregator: drop GAP events until we handle them properly 2015-02-13 23:45:20 +00:00
Tim-Philipp Müller
3c2ee8ece5 aggregator: use new gst_aggregator_pad_drop_buffer() 2015-02-13 16:25:45 +00:00
Tim-Philipp Müller
592c2c8105 aggregator: add gst_aggregator_pad_drop_buffer() 
steal_buffer() + unref seems to be a wide-spread idiom
(which perhaps indicates that something is not quite
right with the way aggregator pad works currently).
 2015-02-13 16:25:45 +00:00
Tim-Philipp Müller
55abf436a0 aggregator: only post latency message if anything changed 
Perhaps we should check for element state as well and
only post it if in PLAYING state.
 2015-02-13 16:25:14 +00:00
Sebastian Dröge
037928dcf6 Improve and fix LATENCY query handling 
This now follows the design docs everywhere, especially the maximum latency
handling.

https://bugzilla.gnome.org/show_bug.cgi?id=744106
 2015-02-11 14:16:21 +01:00
Sebastian Dröge
69a37365f1 aggregator: Pause srcpad task on flow errors 
Otherwise we will call the task function over and over again until
upstream finally handled the flow return and shuts us down.
 2015-02-10 10:57:38 +01:00
Sebastian Dröge
a5002ea59d aggregator: Streamline latency calculations 
Min latency can never be invalid, latency property can never be invalid
either. So no need to check for all these things in various places.
 2015-02-06 11:03:57 +01:00
Sebastian Dröge
65b1db2aa2 aggregator: If upstream has no max latency but the subclass has, take the subclass max latency 2015-02-06 11:03:56 +01:00
Sebastian Dröge
ea50bc1917 aggregator: Fix min>max latency error check 
We have to include the upstream latency, our own latency and the subclass
latency in the calculations.

FIXME: This is still not entirely correct
 2015-02-06 11:03:56 +01:00
Sebastian Dröge
ef8e5280d0 aggregator: Don't add the latency property to the max latency 
It has no meaning for the max latency and is only used to increase the min
latency.
 2015-02-06 11:03:56 +01:00
Thibault Saunier
71e4c485f0 aggregator: Cleanup locking around AggregatorPad flush related fields 
And document the locking

https://bugzilla.gnome.org/show_bug.cgi?id=742684
 2015-01-29 10:24:18 +01:00
Mathieu Duponchelle
b27fb0dbac aggregator: keep chain functions as dumb as possible. 
+ A pad chain function has no business checking other pads,
  that's what the aggregate thread is for.

https://bugzilla.gnome.org/show_bug.cgi?id=742684
 2015-01-29 10:24:18 +01:00
Thibault Saunier
ccf329d527 aggregator: More fixes around locking when accessing protected private fields 
In some more places we were accessing GstAggregator->segment
and GstAggregator->seqnum without holding the GST_OBJECT_LOCK

https://bugzilla.gnome.org/show_bug.cgi?id=742684
 2015-01-29 10:24:18 +01:00
Thibault Saunier
1a07467d5f aggregator: Make the PAD_LOCK private 
Instead of using the GST_OBJECT_LOCK we should have
a dedicated mutex for the pad as it is also associated
with the mutex on the EVENT_MUTEX on which we wait
in the _chain function of the pad.

The GstAggregatorPad.segment is still protected with the
GST_OBJECT_LOCK.

Remove the gst_aggregator_pad_peak_unlocked method as it does not make
sense anymore with a private lock.

https://bugzilla.gnome.org/show_bug.cgi?id=742684
 2015-01-29 10:24:18 +01:00
Thibault Saunier
d8eef43123 aggregator: Hide GstAggregatorPad buffer and EOS fileds 
And add a getter for the EOS.

The user should always use the various getters to access
those fields

https://bugzilla.gnome.org/show_bug.cgi?id=742684
 2015-01-29 10:24:18 +01:00
Olivier Crête
93d0b51dba aggregator: Document locking of GstAggregatorPrivate members 
Most of them are protected by the object lock, specify
which ones use a different lock.

https://bugzilla.gnome.org/show_bug.cgi?id=742684
 2015-01-29 10:24:18 +01:00
Olivier Crête
ea76d39738 aggregator: Document how the segment is protected 
Document that it can only be accessed with the object lock.

https://bugzilla.gnome.org/show_bug.cgi?id=742684
 2015-01-29 10:24:18 +01:00
Olivier Crête
9df8ac0a98 aggregator: Protect all latency related members with the object lock 
The locking was not consistent, now consistently use the object lock.

https://bugzilla.gnome.org/show_bug.cgi?id=742684
 2015-01-29 10:24:18 +01:00
Olivier Crête
41d26673d6 aggregator: Document locking for gst_aggregator_get_latency_unlocked() 
Renamed it to _unlocked() to make it clear.

https://bugzilla.gnome.org/show_bug.cgi?id=742684
 2015-01-29 10:24:18 +01:00
Olivier Crête
f7070dcfdc aggregator: Protect the srcpad caps negotiation with the stream lock 
Instead of adding another lock, use the srcpad stream lock, which is already
taken anyway to push out the new caps if needed.

https://bugzilla.gnome.org/show_bug.cgi?id=742684
 2015-01-29 10:24:18 +01:00
Olivier Crête
4a5882ee08 aggregator: Protect the tags with the object lock 
The tags related variables were sometimes protected, sometimes not and
sometimes atomic. Put them all under the object lock.

https://bugzilla.gnome.org/show_bug.cgi?id=742684
 2015-01-29 10:24:18 +01:00
Olivier Crête
eddd5fd259 aggregator: Consistenly lock the flow_return state 
Use the object's lock to protect it.

https://bugzilla.gnome.org/show_bug.cgi?id=742684
 2015-01-29 10:24:18 +01:00
Olivier Crête
cc605f4560 aggregator: Consistently lock some members 
Some members sometimes used atomic access, sometimes where not locked at
all. Instead consistently use a mutex to protect them, also document
that.

https://bugzilla.gnome.org/show_bug.cgi?id=742684
 2015-01-29 10:24:18 +01:00
Olivier Crête
68ac6438f0 aggregator: Protect exported pad members with the pad's object lock 
https://bugzilla.gnome.org/show_bug.cgi?id=742684
 2015-01-29 10:24:18 +01:00
Olivier Crête
cc3f418516 aggregator: Replace event lock with pad's object lock 
Reduce the number of locks simplify code, what is protects
is exposed, but the lock was not.

Also means adding an _unlocked version of gst_aggregator_pad_steal_buffer().

https://bugzilla.gnome.org/show_bug.cgi?id=742684
 2015-01-29 10:24:18 +01:00
Olivier Crête
0a2dc1185c aggregator: Protect data with the same mutex as GCond 
Whenever a GCond is used, the safest paradigm is to protect
the variable which change is signalled by the GCond with the same
mutex that the GCond depends on.

https://bugzilla.gnome.org/show_bug.cgi?id=742684
 2015-01-29 10:24:17 +01:00
Nirbheek Chauhan
4b9924557a aggregator: Nitpick spacing/punctuation in debug logging 2015-01-14 19:21:31 +01:00
Olivier Crête
9ba9873b1f aggregator: Remove pointless atomic 
It is only modified from the streaming thread
 2015-01-09 22:08:08 -05:00
Olivier Crête
22ea83e7fa aggregator: Fix query leak 2015-01-09 22:02:53 -05:00
Sebastian Dröge
713205fbe6 aggregator: Print jitter from clock waiting in the debug logs 2015-01-09 16:43:58 +01:00
Tim-Philipp Müller
fbd4cf9810 aggregator: don't use iterator when setting flush pending on pads 2015-01-04 17:25:45 +00:00
Tim-Philipp Müller
4da01dadcc aggregator: check if pads are ready more efficiently 
No need to use an iterator for this which creates a temporary
structure every time and also involves taking and releasing the
object lock many times in the course of iterating. Not to mention
all that GList handling in gst_aggregator_iterate_sinkpads().
 2015-01-04 17:07:43 +00:00
Tim-Philipp Müller
3e38003218 aggregator: name vfunc arguments consistently 2015-01-04 12:59:19 +00:00
Tim-Philipp Müller
10d5e878d8 aggregator: add g-i transfer and scope annotations 2015-01-01 15:48:08 +00:00
Tim-Philipp Müller
82f74cd9e0 aggregator: register names of iterate_sinkpads functions with debug system 2015-01-01 14:10:05 +00:00
Tim-Philipp Müller
22d4c7a5c5 aggregator: reduce debug messages for taking/releasing logs to TRACE level 
Don't spam debug log with this stuff.
 2015-01-01 14:04:24 +00:00
Tim-Philipp Müller
6e30a98fd5 aggregator: move property member into private structure 
Our locking (or lack thereof) while accessing this also
looks generally quite dodgy.
 2014-12-31 18:18:03 +00:00
Tim-Philipp Müller
b00ea0cc08 aggregator: remove empty dispose function 2014-12-31 14:50:58 +00:00
Tim-Philipp Müller
ad40a65a01 aggregator: give private functions namespace prefix 
Especially the GST_DEBUG_FUNCPTR ones.
 2014-12-31 12:36:08 +00:00
Tim-Philipp Müller
d0068899bf aggregator: fix up some docs comments in header 2014-12-31 12:35:06 +00:00
Tim-Philipp Müller
7b282513f3 aggregator: remove now-unused system clock member 2014-12-30 23:44:46 +00:00
Tim-Philipp Müller
c1f6ef5f53 aggregator: make GstAggregatorPadForeachFunc take an GstAggregatorPad 2014-12-30 19:22:01 +00:00
Tim-Philipp Müller
b4d2deb6d6 aggregator: bring start/stop vfunc semantics in line with other baseclasses 
Sub-class should not have to chain up to GstAggregator's start/stop
vfuncs, same as in GstBaseSrc, GstBaseSink, GstBaseTransform etc.
 2014-12-30 17:55:05 +00:00
Tim-Philipp Müller
45ae4d7f9c aggregator: remove pointless GST_DEBUG_FUNCPTR 
Not useful for GObject vfuncs.
 2014-12-28 18:26:49 +00:00
Tim-Philipp Müller
773e426616 aggregator: remove duplicate pad parent_class variable 
G_DEFINE_TYPE already provides one, just need to use it.
 2014-12-28 18:25:00 +00:00
Tim-Philipp Müller
813ada29ad aggregator: add _CAST() variants for cast macros 2014-12-28 18:22:57 +00:00
Tim-Philipp Müller
83de85a2f3 aggregator: make padding larger 
Esp. the class structures, can't have enough
spare space for virtual functions.
 2014-12-28 01:13:33 +00:00
Nirbheek Chauhan
2a6446e519 aggregator: Log to the pad instead of the element 
More correct way of doing the same thing as before
 2014-12-27 11:06:09 +00:00
Sebastian Dröge
ba1b53113a aggregator: Make sure that the minimum latencies are never GST_CLOCK_TIME_NONE 2014-12-27 09:49:43 +01:00
Sebastian Dröge
6449e3d897 aggregator: Wait for the minimum latency, not the maximum 
The minimum latency is the latency we have to wait at least
to guarantee that all upstreams have produced data. The maximum
latency has no meaning like that and shouldn't be used for waiting.
 2014-12-27 09:45:08 +01:00
Nirbheek Chauhan
46f857b314 aggregator: Clamp the min latency at the max if it's greater 2014-12-27 09:45:08 +01:00
Nirbheek Chauhan
3193094cbc aggregator: Print the sinkpad name while logging latency queries 
Very useful while debugging.
 2014-12-27 09:45:08 +01:00
Nirbheek Chauhan
f3efb9e7d6 aggregator: Take the stream lock when iterating sink pads 
When iterating sink pads to collect some data, we should take the stream lock so
we don't get stale data and possibly deadlock because of that. This fixes
a definitive deadlock in _wait_and_check() that manifests with high max
latencies in a live pipeline, and fixes other possible race conditions.
 2014-12-27 09:45:08 +01:00
Sebastian Dröge
6771db209d aggregator: Don't leak flush-start events 2014-12-23 11:45:05 +01:00
Sebastian Dröge
e7867a3586 aggregator: Also change the default latency to 0, not just the minimum 2014-12-23 10:24:27 +01:00
Sebastian Dröge
c04bb6983e aggregator: Fix docs and default value of the latency property 2014-12-23 09:52:20 +01:00
Sebastian Dröge
800f0ac49b aggregator: Also include the subclass latency in the result of the latency query 2014-12-22 22:19:52 +01:00
Sebastian Dröge
5dd1dfdadc aggregator: Post a latency message if the value of the latency property changes 2014-12-22 15:27:25 +01:00
Sebastian Dröge
a27ff89d42 aggregator: Wake up the src thread after handling a latency query 
Due to changed latencies or changed live-ness we might have to
adjust if we wait on a deadline at all and how long.
 2014-12-22 15:03:59 +01:00
Sebastian Dröge
341e5291c3 aggregator: Don't count the number of times we need to wake up but instead check all conditions for waiting again 
This simplifies the code and also makes sure that we don't forget to check all
conditions for waiting.

Also fix a potential deadlock caused by not checking if we're actually still
running before starting to wait.
 2014-12-22 15:00:36 +01:00
Sebastian Dröge
06a4e80be9 aggregator: Add function to allow subclasses to set their own latency 
For audiomixer this is one blocksize, for videoaggregator this should
be the duration of one output frame.
 2014-12-17 19:51:32 +01:00
Sebastian Dröge
d4c4af699e aggregator: Add a timeout parameter to ::aggregate() 
When this is TRUE, we really have to produce output. This happens
in live mixing mode when we have to output something for the current
time, no matter if we have enough input or not.
 2014-12-17 18:41:41 +01:00
Sebastian Dröge
852b08340e aggregator: Some minor cleanup 2014-12-16 17:33:01 +01:00
Matthew Waters
8bf53a1226 aggregator: make the src pad task drive the pipeline for live pipelines 
This removes the uses of GAsyncQueue and replaces it with explicit
GMutex, GCond and wakeup count which is used for the non-live case.

For live pipelines, the aggregator waits on the clock until either
data arrives on all sink pads or the expected output buffer time
arrives plus the timeout/latency at which time, the subclass
produces a buffer.

https://bugzilla.gnome.org/show_bug.cgi?id=741146
 2014-12-16 16:58:57 +01:00
Sebastian Dröge
4ad6984662 aggregator: Unblock events/queries immediately if the pad is flushing 
https://bugzilla.gnome.org/show_bug.cgi?id=740376
 2014-11-19 17:17:44 +01:00
Sebastian Dröge
ce69180862 aggregator: Drop serialized events/queries if the pad is flushing 
https://bugzilla.gnome.org/show_bug.cgi?id=740376
 2014-11-19 17:17:44 +01:00
Sebastian Dröge
a31faecb8b aggregator: Block serialized events/queries until the pad has consumed all buffers 
Otherwise the caps of the pad might change while the subclass still works with
a buffer of the old caps, assuming the the current pad caps apply to that
buffer. Which then leads to crashes and other nice effects.

https://bugzilla.gnome.org/show_bug.cgi?id=740376
 2014-11-19 17:06:52 +01:00
Sebastian Dröge
3e27c5592f aggregator: Fix typo in debug output 2014-11-19 17:04:45 +01:00
Matthew Waters
051955e5fa aggregator: add _get_latency() for subclass usage 
API: gst_aggregator_get_latency

https://bugzilla.gnome.org/show_bug.cgi?id=739996
 2014-11-17 22:39:07 +11:00
Vineeth T M
aec1f2a001 audiomixer: critical error for blocksize, timeout min/max values 
Audiomixer blocksize, cant be 0, hence adjusting the minimum value to 1
timeout value of aggregator is defined with MAX of MAXINT64,
but it cannot cross G_MAXLONG * GST_SECOND - 1
Hence changed the max value of the same

https://bugzilla.gnome.org/show_bug.cgi?id=738845
 2014-10-21 10:58:48 +02:00
Matthew Waters
b9db635f48 aggregator: add latency query handling 2014-10-09 23:52:11 +11:00
Matthew Waters
a41bc98b6e aggregator: add a timeout property determining buffer wait time 
Determines the amount of time that a pad will wait for a buffer before
being marked unresponsive.

Network sources may fail to produce buffers for an extended period of time,
currently causing the pipeline to stall possibly indefinitely, waiting for
these buffers to appear.

Subclasses should render unresponsive pads with either silence (audio), the
last (video) frame or what makes the most sense in the given context.
 2014-10-09 23:52:11 +11:00
Jan Alexander Steffens (heftig)
dce92c75b1 aggregator: Replace GMainContext with GAsyncQueue (v2) 
The previous implementation kept accumulating GSources,
slowing down the iteration and leaking memory.

Instead of trying to fix the main context flushing, replace
it with a GAsyncQueue which is simple to flush and has
less overhead.

https://bugzilla.gnome.org/show_bug.cgi?id=736782
 2014-10-06 18:57:28 +02:00
Mathieu Duponchelle
1d94b3f66a aggregator: Set seqnum only when segments are received. 2014-10-06 18:57:28 +02:00
Thibault Saunier
982b9dc3ea aggregator: Add a streaming lock so to secure flush start action 
Without a lock that is taken in FLUSH_START we had a rare race where we
end up aggregating a buffer that was before the whole FLUSH_START/STOP
dance. That could lead to very wrong behaviour in subclasses.
 2014-10-06 18:57:28 +02:00
Thibault Saunier
65d20d1028 aggregator: Query seeking when a seek failed to see if it was expected 
And do not worry if seeking failed on a stream that is not seekable
 2014-10-06 18:57:28 +02:00
Mathieu Duponchelle
59b15e6659 aggregator: set future seqnum before propagating the seek event. 
So the seqnum is properly set for the following events.
 2014-10-06 18:57:28 +02:00
Thibault Saunier
d82dddc3e5 aggregator: Store segment when seeked in READY for later use 2014-10-06 18:57:28 +02:00
Sebastian Dröge
b3cd526347 aggregator: Unref the taglist in GstAggregator::stop() 2014-10-06 10:11:23 +03:00
Thibault Saunier
1b4547ff93 aggregator: Take lock to ensure set_caps is not called concurently 
Avoiding to be in an inconsistent state where we do not have
actual negotiate caps set as srccaps and leading to point where we
try to unref ->srccaps when they have already been set to NULL.

https://bugzilla.gnome.org/show_bug.cgi?id=735042
 2014-10-03 13:18:05 +02:00
Matthew Waters
44e84025d7 aggregator: fix up doc comment for set_src_caps 
It does not occur 'later' anymore

https://bugzilla.gnome.org/show_bug.cgi?id=732662
 2014-08-11 23:38:40 +10:00
Matthew Waters
7c016752d7 videoaggregator: push the caps event as soon as we receive it 
Along with the required mandatory dependent events.

Some elements need to perform an allocation query inside
::negotiated_caps().  Without the caps event being sent prior,
downstream elements will be unable to answer and will return
an error.

https://bugzilla.gnome.org/show_bug.cgi?id=732662
 2014-08-11 23:36:27 +10:00
Mathieu Duponchelle
d11af7cd6b aggregator: Reset flow_return *after* stopping the srcpad task. 
Otherwise it might be set in an already running aggregate function.
 2014-07-16 17:52:35 +02:00
Thibault Saunier
619237c0d0 aggregator: Flush sinkpads when stopping 
All values are meaningless in that case, so we should make sure that
we clean everything
 2014-07-16 17:52:35 +02:00
Thibault Saunier
d9385687fb aggregator: Do not forget to reset the flow return when stoping 
Setting it to FLUSHING when the element is not started, and to OK
when it starts.
 2014-07-16 17:52:30 +02:00
Thibault Saunier
9233c6ac69 aggregator: Handle event seqnum 2014-07-16 17:05:25 +02:00
Sebastian Dröge
f701aa29b9 libs: Don't install headers and pc files for libgstwayland/badvideo/badbase 
These will disappear after 1.4.0 and it would be rather annoying if
people started depending on them.

https://bugzilla.gnome.org/show_bug.cgi?id=732207
 2014-07-11 09:33:57 +02:00
Tim-Philipp Müller
551122c19a aggregator: fix locking 
We would unlock a mutex we never locked on SEGMENT
events.
 2014-07-06 22:09:53 +01:00
Thibault Saunier
71c81a5176 aggregator: Avoid destroying sources we do not own 
+ Unref the maincontext in a new dispose function
+ Make sure to remove all sources on dispose

https://bugzilla.gnome.org/show_bug.cgi?id=732445
 2014-06-30 14:24:49 +02:00
Thiago Santos
bdda4bb689 aggregator: always store or unref the buffer on the _chain function 
Otherwise it leaks, and it is very common to go to flushing when the
pipeline is stopping, leaking a buffer.
 2014-06-28 09:44:22 -03:00
Thiago Santos
b0652ee88f aggregator: always unref the buffer on _finish function 
Otherwise the user doesn't know if it was unref'd or not
 2014-06-28 09:44:22 -03:00
Thiago Santos
5ce02fa5f9 aggregator: add dispose/finalize functions 
Add functions to be able to cleanup the mutex/cond and pending buffers
on the aggregator and on its pad
 2014-06-28 09:44:22 -03:00
Matthew Waters
a9215f78b5 aggregator: plug a memory leak of the srccaps 2014-06-26 10:53:16 +10:00
Sebastian Dröge
104816e906 badbase: Use the correct LDFLAGS for creating libraries 
Otherwise we won't e.g. create .dlls on Windows
 2014-06-24 11:27:15 +02:00
Thibault Saunier
816b12d100 libs:base: Properly declare APIs as UNSTABLE 2014-06-21 17:02:50 +02:00
Thibault Saunier
8250845b47 libs:base: Fix includedir 2014-06-21 15:26:14 +02:00