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88 commits

Author SHA1 Message Date
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