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92 commits

Author SHA1 Message Date
Tim-Philipp Müller
4e97321898 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.
 2017-12-02 15:10:26 +00:00
Sebastian Dröge
d97d363b1f 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
 2017-12-02 15:10:26 +00:00
Sebastian Dröge
1609e1d696 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.
 2017-12-02 15:10:26 +00:00
Sebastian Dröge
9213f24716 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.
 2017-12-02 15:10:26 +00:00
Sebastian Dröge
07d9bf9cab aggregator: If upstream has no max latency but the subclass has, take the subclass max latency 2017-12-02 15:10:26 +00:00
Sebastian Dröge
e57b62be72 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
 2017-12-02 15:10:26 +00:00
Sebastian Dröge
87a2fbab60 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.
 2017-12-02 15:10:26 +00:00
Thibault Saunier
24abac9fce aggregator: Cleanup locking around AggregatorPad flush related fields 
And document the locking

https://bugzilla.gnome.org/show_bug.cgi?id=742684
 2017-12-02 15:10:26 +00:00
Mathieu Duponchelle
14f35e8a78 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
 2017-12-02 15:10:26 +00:00
Thibault Saunier
97eab82ddf 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
 2017-12-02 15:10:26 +00:00
Thibault Saunier
ae12041f0c 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
 2017-12-02 15:10:26 +00:00
Thibault Saunier
5f176b724b 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
 2017-12-02 15:10:26 +00:00
Olivier Crête
0588222925 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
 2017-12-02 15:10:26 +00:00
Olivier Crête
fd326639ea 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
 2017-12-02 15:10:26 +00:00
Olivier Crête
be58999bff 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
 2017-12-02 15:10:26 +00:00
Olivier Crête
1d5f3fe084 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
 2017-12-02 15:10:26 +00:00
Olivier Crête
142073cc79 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
 2017-12-02 15:10:26 +00:00
Olivier Crête
9add348012 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
 2017-12-02 15:10:26 +00:00
Olivier Crête
25faafaf58 aggregator: Consistenly lock the flow_return state 
Use the object's lock to protect it.

https://bugzilla.gnome.org/show_bug.cgi?id=742684
 2017-12-02 15:10:26 +00:00
Olivier Crête
90f3cb4af0 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
 2017-12-02 15:10:26 +00:00
Olivier Crête
2b7d4e2404 aggregator: Protect exported pad members with the pad's object lock 
https://bugzilla.gnome.org/show_bug.cgi?id=742684
 2017-12-02 15:10:26 +00:00
Olivier Crête
3217e82791 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
 2017-12-02 15:10:26 +00:00
Olivier Crête
6379433a70 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
 2017-12-02 15:10:26 +00:00
Nirbheek Chauhan
d33e6a191e aggregator: Nitpick spacing/punctuation in debug logging 2017-12-02 15:10:26 +00:00
Olivier Crête
ec5ff5f308 aggregator: Remove pointless atomic 
It is only modified from the streaming thread
 2017-12-02 15:10:26 +00:00
Olivier Crête
53dd0c650f aggregator: Fix query leak 2017-12-02 15:10:26 +00:00
Sebastian Dröge
4534253145 aggregator: Print jitter from clock waiting in the debug logs 2017-12-02 15:10:26 +00:00
Tim-Philipp Müller
f4ad5f0cdf aggregator: don't use iterator when setting flush pending on pads 2017-12-02 15:10:26 +00:00
Tim-Philipp Müller
0db6fc999b 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().
 2017-12-02 15:10:26 +00:00
Tim-Philipp Müller
100d860ad2 aggregator: name vfunc arguments consistently 2017-12-02 15:10:26 +00:00
Tim-Philipp Müller
50908e60d0 aggregator: add g-i transfer and scope annotations 2017-12-02 15:10:26 +00:00
Tim-Philipp Müller
6af6dcb0f7 aggregator: register names of iterate_sinkpads functions with debug system 2017-12-02 15:10:26 +00:00
Tim-Philipp Müller
417445c065 aggregator: reduce debug messages for taking/releasing logs to TRACE level 
Don't spam debug log with this stuff.
 2017-12-02 15:10:26 +00:00
Tim-Philipp Müller
c5e3fe807a aggregator: move property member into private structure 
Our locking (or lack thereof) while accessing this also
looks generally quite dodgy.
 2017-12-02 15:10:26 +00:00
Tim-Philipp Müller
b813456233 aggregator: remove empty dispose function 2017-12-02 15:10:26 +00:00
Tim-Philipp Müller
71ec8e2879 aggregator: give private functions namespace prefix 
Especially the GST_DEBUG_FUNCPTR ones.
 2017-12-02 15:10:26 +00:00
Tim-Philipp Müller
3793bb8ad9 aggregator: fix up some docs comments in header 2017-12-02 15:10:26 +00:00
Tim-Philipp Müller
7302a42ac1 aggregator: remove now-unused system clock member 2017-12-02 15:10:26 +00:00
Tim-Philipp Müller
9f417fb08e aggregator: make GstAggregatorPadForeachFunc take an GstAggregatorPad 2017-12-02 15:10:26 +00:00
Tim-Philipp Müller
601554df70 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.
 2017-12-02 15:10:26 +00:00
Tim-Philipp Müller
a7e2a01098 aggregator: remove pointless GST_DEBUG_FUNCPTR 
Not useful for GObject vfuncs.
 2017-12-02 15:10:26 +00:00
Tim-Philipp Müller
760d3c5611 aggregator: remove duplicate pad parent_class variable 
G_DEFINE_TYPE already provides one, just need to use it.
 2017-12-02 15:10:26 +00:00
Tim-Philipp Müller
85171e3512 aggregator: add _CAST() variants for cast macros 2017-12-02 15:10:26 +00:00
Tim-Philipp Müller
5350d8c653 aggregator: make padding larger 
Esp. the class structures, can't have enough
spare space for virtual functions.
 2017-12-02 15:10:26 +00:00
Nirbheek Chauhan
ced334d397 aggregator: Log to the pad instead of the element 
More correct way of doing the same thing as before
 2017-12-02 15:10:26 +00:00
Sebastian Dröge
8da3d1e596 aggregator: Make sure that the minimum latencies are never GST_CLOCK_TIME_NONE 2017-12-02 15:10:26 +00:00
Sebastian Dröge
4846f06b41 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.
 2017-12-02 15:10:26 +00:00
Nirbheek Chauhan
d18b6de2e6 aggregator: Clamp the min latency at the max if it's greater 2017-12-02 15:10:26 +00:00
Nirbheek Chauhan
b49805a840 aggregator: Print the sinkpad name while logging latency queries 
Very useful while debugging.
 2017-12-02 15:10:26 +00:00
Nirbheek Chauhan
bbde713640 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.
 2017-12-02 15:10:26 +00:00