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109 commits

Author SHA1 Message Date
Arun Raghavan
2e5d6c3a3e aggregator: Use standard upstream latency querying logic 
The same functionality is duplicated in the default latency querying
now.
 2015-02-27 01:05:51 +05:30
Olivier Crete
880dcd8039 aggregator: Use src_lock to protect latency related members 
One has to use the src_lock anyway to protect the min/max/live so they
can be notified atomically to the src thread to wake it up on changes,
such as property changes. So no point in having a second lock.

Also, the object lock was being held across a call to
GST_ELEMENT_WARNING, guaranteeing a deadlock.
 2015-02-19 21:22:53 -05:00
Olivier Crête
083df6412f aggregator: Remove untrue comment 2015-02-19 19:05:42 -05:00
Olivier Crête
97f6b7a8aa aggregator: Don't try to push tags while flush seeking 
The downstream segment could have been flushed already, so
need to re-send the segment event before re-sending the tags.

https://bugzilla.gnome.org/show_bug.cgi?id=742684
 2015-02-19 19:05:27 -05:00
Sebastian Dröge
2516e8111c aggregator: Use the sinkpads iterator directly to query upstream latencies 
While gst_aggregator_iterate_sinkpads() makes sure that every pad is only
visited once, even when the iterator has to resync, this is not all we have
to do for querying the latency. When the iterator resyncs we actually have
to query all pads for the latency again and forget our previous results. It
might have happened that a pad was removed, which influenced the result of
the latency query.
 2015-02-19 11:04:28 +02:00
Sebastian Dröge
d3205e1363 aggregator: Move gst_aggregator_get_latency_unlocked() a bit 
It was between another function and its helper function before, which was
confusing when reading the code as it had nothing to do with the other
functions.
 2015-02-19 10:57:09 +02:00
Sebastian Dröge
44ffb87f8a aggregator: Fail the latency query if one of the upstream queries fails 2015-02-19 01:28:06 +02:00
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