Commit graph

265 commits

Author SHA1 Message Date
Matthew Waters
ddfcc28c8b gst/buffer: add a new function for wrapping GBytes
One restriction on the GBytes is that the data cannot be NULL as this is
explicitly forbidden by GstMemory.

Fixes https://gitlab.freedesktop.org/gstreamer/gstreamer/issues/318
2018-11-06 16:12:42 +11:00
Jan Alexander Steffens (heftig)
1c3db34150
gst_clear_*: Cast to GstMiniObject** when needed 2018-11-05 14:03:54 +01:00
Niels De Graef
1068d9e2c8 buffer: add gst_clear_buffer()
Basically, you can use this instead of using gst_buffer_unref (which
needs to be preceded by a NULL-check).

Also fixes #275
2018-11-05 11:06:30 +00:00
Tim-Philipp Müller
8983cce9f6 gst: GST_EXPORT -> GST_API
We need different export decorators for the different libs.
For now no actual change though, just rename before the release,
and add prelude headers to define the new decorator to GST_EXPORT.
2018-03-13 00:45:35 +00:00
Tim-Philipp Müller
08dab770d6 buffer: fix gtk-doc warning regarding _get_n_meta() declaration 2018-02-03 17:55:29 +01:00
Mathieu Duponchelle
8451a2ab04 gstbuffer.h: move FLAG_LAST documentation back to the bottom 2018-01-31 14:01:36 +01:00
Mathieu Duponchelle
ebcdfd2e9c gstbuffer: add GST_BUFFER_FLAG_NON_DROPPABLE
This can be used to identify buffers for which a higher percentage
of redundancy should be allocated when performing forward error
correction, or to prevent still video frames from being dropped by
elements due to QoS.

https://bugzilla.gnome.org/show_bug.cgi?id=793008
2018-01-31 13:34:13 +01:00
Tim-Philipp Müller
cd10f14726 buffer: add gst_buffer_get_n_meta() convenience function
Counts how many metas there are for a certain api type.

https://bugzilla.gnome.org/show_bug.cgi?id=791918
2018-01-27 11:18:19 +00:00
Tim-Philipp Müller
92d3246f76 gst: mark symbols explicitly for export with GST_EXPORT
One omission: gst_allocator_sysmem_get_type() was
exported but never in any public header file.
2017-05-15 23:14:12 +01:00
Sebastian Dröge
7d930b8693 buffer: Add GstReferenceTimestampMeta
This is a meta that generically allows to attach additional reference
timestamps to a buffer, that don't have to relate to the pipeline clock
in any way.

Examples of this could be an NTP timestamp when the media was captured,
a frame counter on the capture side or the (local) UNIX timestamp when
the media was captured.

https://bugzilla.gnome.org/show_bug.cgi?id=779213
2017-05-12 11:43:02 +02:00
Sebastian Dröge
42a8ffcd39 gst: Cast combined-flags constants to their respective target types
This makes C++ compilers a bit more happy without having the user of the
constants cast. It also provides the correct type information to GI.

https://bugzilla.gnome.org/show_bug.cgi?id=780923
2017-04-05 14:45:46 +03:00
Sebastian Dröge
d96c201f5f gst: Set values and types for combined-flags constants in GI annotations 2017-04-05 14:42:16 +03:00
Thibault Saunier
76f049bc49 gst: Fix includes so that files can be built separately
It used to work but it has broke in the 1.10 cycle.
2017-01-27 16:33:42 -03:00
Tim-Philipp Müller
ca4ac71555 buffer: add gst_buffer_iterate_meta_filtered()
For convenience. Pretty much every user of
gst_buffer_iterate_meta() filters for a specific
api type.

https://bugzilla.gnome.org/show_bug.cgi?id=775727
2016-12-14 18:18:43 +00:00
Arjen Veenhuizen
cf6cac07dd buffer: add explicit getters and setters for buffer flags
These can be used from bindings.

https://bugzilla.gnome.org/show_bug.cgi?id=768301
2016-08-22 18:59:06 +01:00
Víctor Manuel Jáquez Leal
c1f2775dcb gstbuffer: fix GstParentBufferMeta GType name
The alias define GST_TYPE_PARENT_BUFFER_META_API_TYPE is wrong and
breaks the usage of gst_buffer_get_parent_buffer_meta().

This patch fixes the GType alias and make another alias to keep the API
compatibility guarded by GST_DISABLE_DEPRECATED.

Also added a unit test.

https://bugzilla.gnome.org/show_bug.cgi?id=763112
2016-03-07 12:02:00 +01:00
Tim-Philipp Müller
7c992cfbe0 docs: fix some warnings and add some since markers 2016-01-03 17:50:35 +00:00
Xavier Claessens
46f83f5fcd core: Add g_autoptr() support to all types
https://bugzilla.gnome.org/show_bug.cgi?id=754464
2015-12-14 12:06:55 -05:00
Tim-Philipp Müller
220dbfc13c docs: remove dummy function declarations with G_INLINE_FUNCTION for gtk-doc
gtk-doc can handle static inline functions just fine these days,
there's no need for this stuff any more.
2015-11-09 17:59:16 +00:00
Nirbheek Chauhan
5af73b30ed buffer: flesh out docs for gst_buffer_make_writable() a little
There is a similar explanation in gst_caps_make_writable, but the existing
documentation can be misleading since it does not define what 'is already
writable' means.

Also note when this function is meant to be used.
2015-10-27 11:23:25 +00:00
Edward Hervey
41e1bea7ef buffer: Add a GST_BUFFER_DTS_OR_PTS macro
API: GST_BUFFER_DTS_OR_PTS

Many scenarios/elements require dealing with streams of buffers that
might have DTS set (i.e. encoded data, potentially reordered)

To simplify getting the increasing "timestamp" of those buffers, create
a macro that will return the DTS if valid, and if not the PTS
2015-10-27 08:33:23 +01:00
Nicolas Dufresne
210c29665a doc: Remove parenthesis around Since:
This confuse the parser, hence it does not endup in the doc and the
index properly.
2015-06-18 11:48:50 -04:00
Jan Schmidt
4d4e436376 Add GstParentBufferMeta
A core meta which helps implement the old concept
of sub-buffering in some situations, by making it
possible for a buffer to keep a ref on a different
parent buffer. The parent buffer is unreffed when
the Meta is freed.

This meta is used to ensure that a buffer whose
memory is being shared to a child buffer isn't freed
and returned to a buffer pool until the memory
is.

https://bugzilla.gnome.org/show_bug.cgi?id=750039
2015-06-19 01:15:25 +10:00
Nicolas Dufresne
bd9ea8d18f doc: Fix Since: marks
There was few Since: mark missing their column. Also unify the way
we set the Since mark on enum value and structure members. These
sadly don't show up in the index.
2015-06-13 20:19:59 -04:00
Jan Schmidt
ade4a83e63 Add GST_BUFFER_FLAG_SYNC_AFTER flag, and implement in filesink.
Makes it possible to get filesink to fsync() after rendering
a buffer.
2015-06-08 19:13:18 +10:00
Thiago Santos
96eaeadc0f gstbuffer: add gst_buffer_copy_deep
A variant of gst_buffer_copy that forces the underlying memory
to be copied.

This is added to avoid adding an extra reference to a GstMemory
that might belong to a bufferpool that is trying to be drained.
The use case is when the buffer copying is done to release the
old buffer and all its resources.

https://bugzilla.gnome.org/show_bug.cgi?id=745287
2015-03-13 18:37:04 +00:00
Evan Nemerson
5d80cf12ba introspection: add nullability annotations to out and inout params
https://bugzilla.gnome.org/show_bug.cgi?id=730957
2014-06-26 18:59:15 +02:00
Evan Nemerson
e10266e3f3 docs: convert NULL, TRUE, and FALSE to %NULL, %TRUE, and %FALSE
This should help improve documentation generated for
languages other than C.

https://bugzilla.gnome.org/show_bug.cgi?id=730961
2014-05-30 00:20:27 +01:00
Tim-Philipp Müller
313f01ab79 buffer: invert meaning of GST_BUFFER_FLAG_TAG_MEMORY
It's nicer to only have it set when something noteworthy
happened and otherwise unset.

https://bugzilla.gnome.org/show_bug.cgi?id=725862
2014-03-07 20:43:44 +00:00
Wim Taymans
659785d896 buffer: add function to check writability of memory
Check if memory is writable in a buffer and thus is exclusively owned by
this buffer.
2014-02-27 16:39:50 +01:00
Wim Taymans
5bca002f4b buffer: add a new flag to track memory changes
Add a flag to check if the memory changed in a buffer.
2014-02-27 15:43:13 +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
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
Wim Taymans
396b49ec4d buffer: add _gst_max_memory() function
Add the a function to query the maximum amount of memory blocks that can be
added to a buffer. Also improve the docs for _insert_memory().
2013-04-11 14:31:01 +01:00
Olivier Crête
ec16d6b0a4 buffer: Add annotations and pygi friendly extraction function
API: gst_buffer_extract_dup
2013-03-27 13:07:03 -04:00
Sebastian Dröge
ce1c1cf214 buffer: Gracefully handle gst_memory_copy() returning NULL without crashing
gst_buffer_copy_into() and gst_buffer_resize_range() can now fail.
2013-02-27 10:11:23 +01:00
Tim-Philipp Müller
e3a9e66985 buffer: add since marker for new COPY_DEEP buffer flag 2013-02-16 14:20:54 +00:00
Wim Taymans
1fcef378bd buffer: add option to deep copy a buffer
Add a buffer copy flag to force a memory copy in all cases.
2013-02-16 14:59:02 +01:00
Tim-Philipp Müller
666c8c11c6 Fix FSF address
https://bugzilla.gnome.org/show_bug.cgi?id=687520
2012-11-03 20:44:48 +00:00
Wim Taymans
00c6fa74f5 events: remove STREAM_CONFIG
We won't be able to implement this so it's better to move it out of the way.
2012-09-11 16:29:12 +02:00
Evan Nemerson
237f707c75 buffer: convert gst_buffer_* macros to functions
GObject Introspection does not support macros.
This is needed for bindings. We can still add back
macros or inline functions again later if we think
it's worth it.

https://bugzilla.gnome.org/show_bug.cgi?id=678301
2012-08-10 15:04:12 +01:00
Wim Taymans
8c864712e6 buffer: make _foreach_meta more powerful
Make _foreach_meta return FALSE when the foreach function returned FALSE.
2012-07-17 12:57:59 +02:00
Edward Hervey
d3ffa82639 Remove 0.10-related documentation and "Since" markers 2012-07-10 12:03:27 +02:00
Wim Taymans
f362f643ac memory: Make GstAllocator a GstObject
Make GstAllocator a GstObject instead of a GstMiniObject, like bufferpool.
Make a new gstallocator.c file. Make a GstAllocator subclass for the default
allocator.
2012-07-09 16:28:22 +02:00
Wim Taymans
3b16efa1d1 miniobject: add lock functionality to GstMiniObject
Move the locking methods from GstMemory to GstMiniObject.
Add a miniobject flag to enable LOCKABLE objects. LOCKABLE objects can
use the lock/unlock API to control the access to the object.
Add a minobject flag that allows you to lock an object in readonly mode.
Modify the _is_writable() method to check the shared counter for LOCKABLE
objects. This allows us to control writability separately from the refcount for
LOCKABLE objects.
2012-07-05 11:19:16 +02:00
Wim Taymans
4c6228224f buffer: add _append_region function
Make a gst_buffer_append_region() function that allows you to append a memory
region from one buffer to another. This is a more general version of
gst_buffer_append().
2012-06-28 11:02:19 +02:00
Wim Taymans
2cab15c9f6 docs: improve API docs 2012-06-15 12:57:24 +02:00
Wim Taymans
db59375785 buffer: MARKER is for the start of a talkspurt 2012-04-25 09:08:05 +02:00
Wim Taymans
b15bcb66b4 buffer: improve _set_size() 2012-04-04 09:33:13 +02:00
Wim Taymans
8428d3e295 buffer: make get_sizes and _resize with ranges
Make the _get_sizes and _resize methods work on a range of memory to make them
more powerfull.
2012-04-04 09:33:13 +02:00