Commit graph

439 commits

Author SHA1 Message Date
Tim-Philipp Müller
18fe36a286 basesrc: add buffer list support
Add a gst_base_src_submit_buffer_list() function that allows subclasses
to produce a bufferlist containing multiple buffers in the ::create()
function. The buffers in the buffer list will then also be pushed out
in one go as a GstBufferList. This can reduce push overhead
significantly for sources with packetised inputs (such as udpsrc)
in high-throughput scenarios.

The _submit_buffer_list() approach was chosen because it is fairly
straight-forward, backwards-compatible, bindings-friendly (as opposed
to e.g. making the create function return a mini object instead),
and it allows the subclass maximum control: the subclass can decide
dynamically at runtime whether to return a list or a single buffer
(which would be messier if we added a create_list virtual method).

https://bugzilla.gnome.org/show_bug.cgi?id=750241
2017-12-07 12:17:09 +00:00
Tim-Philipp Müller
880c573e8d basesrc: minor code readability improvement 2017-12-07 12:17:09 +00:00
Tim-Philipp Müller
b37429c995 basesrc: deprecate non-functional "typefind" property
https://bugzilla.gnome.org/show_bug.cgi?id=736565
2017-07-14 17:00:48 +01:00
George Kiagiadakis
bd5b1d00e6 basesrc: forward SINK_MESSAGE events downstream
https://bugzilla.gnome.org/show_bug.cgi?id=784551
2017-07-12 15:23:42 +03:00
Nicolas Dufresne
dd5905c31a basesrc: Removed unused private member qos_enabled 2017-06-29 10:51:33 -04:00
Nicolas Dufresne
2be51ba60c basesrc: Don't reallocate buffers when flushing
Instead of using gst_buffer_pool_set_active() when flushing, use
gst_buffer_pool_set_flushing(), this avoids uneeded reallocation of the
buffers.
2017-06-29 10:51:33 -04:00
Nicolas Dufresne
523de1a9dc basesrc: Don't hold LIVE_LOCK in create/alloc/fill
Holding this lock on live source prevents the source from changing
the caps in ::create() without risking a deadlock. This has consequences
as the LIVE_LOCK was replacing the STREAM_LOCK in many situation. As a
side effect:

- We no longer need to unlock when doing play/pause as the LIVE_LOCK
  isn't held. We then let the create() call finish, but will block if
  the state have changed meanwhile. This has the benefit that
  wait_preroll() calls in subclass is no longer needed.
- We no longer need to change the state to unlock, simplifying the
  set_flushing() interface
- We need different handling for EOS depending if we are in push or pull
  mode.

This patch also document the locking of each private class member and
the locking order.

https://bugzilla.gnome.org/show_bug.cgi?id=783301
2017-06-29 10:51:33 -04:00
Nicolas Dufresne
946622ec3f basesrc: Protect access to pool and allocator
This was only partly protected by the object lock. Always take the
object lock to access the currently configured pool and allocator.

https://bugzilla.gnome.org/show_bug.cgi?id=783301
2017-06-29 10:51:33 -04:00
Olivier Crête
67a496c0c2 basesrc: Hold object lock while updating latency
Otherwise in gst_base_src_query_latency(), it ended up
sometimes thinking it wasn't -1 when it was actually.
2017-05-23 00:51:49 +02:00
Thibault Saunier
a87b4551a6 Port gtk-doc comments to their equivalent markdown syntax
Modernizing our documentation and preparing a possible move to hotdoc.
This commits also adds missing @title metadatas to all SECTIONs
2017-01-27 16:36:38 -03:00
Seungha Yang
562681a1b7 basesrc: Support PROTECTION event from application
Application may want to send PROTECTION event to the src element.

https://bugzilla.gnome.org/show_bug.cgi?id=769775
2016-11-11 13:07:51 +00:00
Thibault Saunier
4714ef2f8e Make use of the new GST_ELEMENT_FLOW_ERROR API all around.
https://bugzilla.gnome.org/show_bug.cgi?id=770158
2016-08-27 09:33:20 -03:00
Sebastian Dröge
af0d087bbd basesrc: Fix automatic-eos=false mode if a segment.stop is given
If segment.stop was given, and the subclass provides a size that might be
smaller than segment.stop and also smaller than the actual size, we would
already stop there.

Instead try reading up to segment.stop, the goal is to ignore the (possibly
inaccurate) size the subclass gives and finish until segment.stop or when the
subclass tells us to stop.
2016-07-12 12:34:47 +03:00
Sebastian Dröge
d184e7a9a0 basesink/src: Post an error message if ::start() fails
The subclass should do that already, but just in case do it ourselves too as a
fallback. Without this, e.g. playbin will just wait forever if this fails
because it is triggered as part of an ASYNC state change.
2016-05-15 11:04:25 +03:00
Vineeth TM
8cc3e908c3 gstreamer: use new gst_element_class_add_static_pad_template()
https://bugzilla.gnome.org/show_bug.cgi?id=763020
2016-03-24 14:43:41 +02:00
Evan Nemerson
d11e657412 docs: annotate C examples as such
https://bugzilla.gnome.org/show_bug.cgi?id=731292
2016-02-15 17:45:15 +00:00
Carlos Rafael Giani
91496281eb basesrc: Only set duration/position query values in case of query success
Currently, the query values are being set even if the query itself was
determined to have failed. Fix this to ensure the values are only set in
case of a query success.

https://bugzilla.gnome.org/show_bug.cgi?id=760479
2016-01-11 21:42:10 +01:00
Changbok Chea
60706692b3 basesrc: Remove unused assignment in perform_seek()
https://bugzilla.gnome.org/show_bug.cgi?id=748345
2015-04-23 14:03:23 +01:00
Vincent Penquerc'h
6240b03085 Revert "basesrc: fix pool leak on allocation query error path"
This reverts commit 84fdf50b2f.

It seems the bug was fixed independently, and the merge was
automagic, yielding two extra free calls.
2015-04-15 11:40:51 +01:00
Sebastian Dröge
7d3d4503a1 basesrc: Only set DTS to segment.start on the first buffer if subclass did not provide PTS
Otherwise we're going to set a rather arbitrary DTS of segment.start (usually
0) for live sources, which confuses synchronization if the source started
capturing at a later time. And it's especially wrong for raw media, for which
we should not set any DTS at all.

https://bugzilla.gnome.org/show_bug.cgi?id=747731
2015-04-13 09:23:02 +02:00
Vincent Penquerc'h
84fdf50b2f basesrc: fix pool leak on allocation query error path
It could be triggered by:

gst-launch-1.0 videotestsrc num-buffers=20 ! videcrop bottom=214748364 ! videoconvert ! autovideosink

Spotted while testing:

https://bugzilla.gnome.org/show_bug.cgi?id=743910
2015-04-07 11:41:40 +01:00
Ilya Konstantinov
f35ec14d33 basesrc: do not leak buffer pool in error case
https://bugzilla.gnome.org/show_bug.cgi?id=747321
2015-04-04 11:14:12 +01:00
Sebastian Dröge
7742f0a0d3 basesrc: Fix documentation, buffer pools are unreffed and not freed 2015-04-03 13:19:33 -07:00
Nicolas Dufresne
208696a774 basesrc: Flush-stop starts live task in paused
The flush-stop event should not restart the task for live sources unless
the element is playing. This was breaking seeks in pause with the rtpsrc.

https://bugzilla.gnome.org/show_bug.cgi?id=635701
2015-03-27 19:03:30 -04:00
Sebastian Dröge
bfaa7d1b9f basesrc: Fix typo in debug message 2015-03-06 11:00:20 +01:00
Thiago Santos
d718a2befd basesrc: fix documentation and debug message after latency updates
Changes docs and message according to latency handling fix
2015-02-12 14:12:08 -03:00
Sebastian Dröge
4a5ce862a2 Improve and fix LATENCY query handling
This now follows the design docs everywhere.

https://bugzilla.gnome.org/show_bug.cgi?id=744106
2015-02-11 17:53:04 +02:00
Sebastian Dröge
674b555bec basesrc: Don't bother the subclass with setting the same caps multiple times 2014-11-09 10:42:54 +01:00
Stefan Sauer
d5518edf12 fixme: bump leftover 0.11 fixme comments 2014-09-25 21:27:03 +02:00
Stefan Sauer
e8c5627802 basesrc: move the quick return up
Don't assign local vars if we skip anyway. Add logging for failure conditio
2014-09-25 20:33:17 +02:00
Aurélien Zanelli
fefd6d06a1 basesrc: handle reference in set_allocation rather than in prepare_allocation
Otherwise we can forget to unref objects in error cases.

https://bugzilla.gnome.org/show_bug.cgi?id=736680
2014-09-16 10:17:28 +03:00
Aurélien Zanelli
b9fa37f074 docs: make explicit that the caps passed to gst_base_src_set_caps() are 'tranfer none'
https://bugzilla.gnome.org/show_bug.cgi?id=733741
2014-08-15 09:53:09 +01:00
Evan Nemerson
5abc82e9f3 introspection: Assorted minor introspection and documentation fixes
https://bugzilla.gnome.org/show_bug.cgi?id=732534
2014-07-01 09:03:41 +02:00
Evan Nemerson
25af4ad652 base: use correct syntax in documentation more consistently
Previously, many constants were prefixed with # or unprefixed,
some functions and macros were prefixed with # instead of suffixed
with (), etc.

https://bugzilla.gnome.org/show_bug.cgi?id=731293
2014-06-06 15:09:21 -04:00
Nicolas Dufresne
157befa04c pool-nego: Correctly reset the configuration
When pool cannot be used, correctly reset the configuration before
configuration a default pool.
2014-05-08 14:12:16 -04:00
Nicolas Dufresne
23e69d98d8 pool-nego: Retry setting configuration with modified config
Buffer pool set_config() may return FALSE if requested configuration needed
small changes. Reget the config and try setting it again (validating the
changes first). This ensure we have a configured pool if possible.

https://bugzilla.gnome.org/show_bug.cgi?id=727916
2014-05-08 13:11:14 -04:00
Tim-Philipp Müller
6eb6d9ec38 docs: remove outdated and pointless 'Last reviewed' lines from docs
They are very confusing for people, and more often than not
also just not very accurate. Seeing 'last reviewed: 2005' in
your docs is not very confidence-inspiring. Let's just remove
those comments.
2014-04-26 21:21:51 +01:00
Sebastian Dröge
63c1728040 basesrc: Make sure to always hold the LIVE_LOCK when going to the flushing label
https://bugzilla.gnome.org/show_bug.cgi?id=728596
2014-04-20 12:01:01 +02:00
Thiago Santos
03a2388b60 basesrc: removing duplicated inner if
The inner if replicates the same code of the outer and is useless
as flag_segment will always be true.

Found by coverity.
2014-04-03 13:54:19 -03:00
Thiago Santos
2c2e55789d basesrc: Do not send eos when seeking after last buffer
If pushing the last buffer triggers a seek from downstream, do not
go into EOS if a new segment was requested.

Contains unit test

https://bugzilla.gnome.org/show_bug.cgi?id=724757
2014-02-24 10:37:57 -03:00
Wim Taymans
04a6c661c8 basesrc: in automatic_eos mode, don't modify the size
Don't set the size to -1 in automatic_eos mode (which also updates the
duration to -1). We only want automatic_eos mode influence the maxsize
calculations without any side effects.

Fixes https://bugzilla.gnome.org/show_bug.cgi?id=724564
2014-02-18 11:57:49 +01:00
Sebastian Dröge
f47c704b99 basesrc: Add gst_base_src_set_automatic_eos() API
This defaults to TRUE and if it is set to FALSE it is the subclasses
responsibility to return GST_FLOW_EOS from the create() vmethod once
the stream is done.
2014-02-13 12:09:06 +01:00
Thiago Santos
78d13b6642 basesrc: do not forget to clear the forced_eos flag
otherwise it will always use the seqnum of the event
sent by the application
2014-01-24 13:36:33 -03:00
Thiago Santos
fdfc6dc983 basesrc: preserve seqnum of eos events sent by the user
Store the eos event seqnum and use it when creating the
new eos event to be pushed downstream. To know if the eos
was caused by the eos events received on send_event, a
'forced_eos' flag is used to use the correct seqnum on
the event pushed downstream.

Useful if the application wants to check if the EOS message
was generated from its own pushed EOS or from another source
(stream really finished).

Also adds a test for this

https://bugzilla.gnome.org/show_bug.cgi?id=722791
2014-01-24 09:31:44 -03:00
Stefan Sauer
6a05291ca2 basesrc: don't confuse GST_PAD_MODE_NONE and PULL
Use a switch-case to explicitly handle all pad-modes. This way we don't log an error when the pad is not yet activated.
2014-01-09 08:49:40 +01:00
Stefan Sauer
74adc33982 basesrc: demote error to warning
This is not an error. A subclass returning FALSE for is_seekable() is one way of
saying that we can't operate in pull mode.
2014-01-06 21:10:33 +01:00
David Svensson Fors
892d36211f basesrc: use segment start if DTS for first buffer is unset
https://bugzilla.gnome.org/show_bug.cgi?id=720199
2013-12-17 10:47:55 +01:00
Sebastian Rasmussen
53ae1b2c9c docs: Fix typos in function/object descriptions
Fixes https://bugzilla.gnome.org/show_bug.cgi?id=720029
2013-12-07 17:11:12 +00:00
Olivier Crête
68697682ce basesrc: Set format to TIME if do-timestamp is TRUE
https://bugzilla.gnome.org/show_bug.cgi?id=702842
2013-12-05 13:29:05 -05:00
Sebastian Rasmussen
b40fa2b8c3 docs: cosmetic changes in references/decriptions
* fix typo GstBufferFlag -> GstBufferFlags
 * fix typo GstFeatures -> GstCapsFeatures
 * fix typo GstAllocatorParams -> GstAllocationParams
 * fix typo GstContrlSources -> GstControlSource
 * do not refer to gstcheck as an object
 * make references gtk_init() and tcase_set_timeout() not be references
 * gst_element_get_pad() renamed gst_element_get_static_pad()
 * gst_clock_id_wait_async_full() renamed gst_clock_id_wait_async()
 * _drop_element() is really gst_queue_array_drop_element()
 * gst_pad_accept_caps() was removed, do not refer to it
 * separate GST_META_TAG_MEMORY_STR declaration from description
 * do not describe removed gst_collect_pads_collect()
 * correctly link to GstElementClass' virtual set_context()

Fixes https://bugzilla.gnome.org/show_bug.cgi?id=719614
2013-12-02 21:01:08 +00:00