Commit graph

3071 commits

Author SHA1 Message Date
Mathieu Duponchelle
2fa15d5371 event: add new seek parameter, "trickmode-interval"
When performing a key unit trickmode seek, it may be useful to
specify a minimum interval between the output frames, either
in very high rate cases, or as a protection against streams
that may contain an overly large amount of key frames.

One use case is ONVIF Section 6.5.3:

<https://www.onvif.org/specs/stream/ONVIF-Streaming-Spec.pdf>
2019-04-01 17:13:32 +00:00
Tim-Philipp Müller
673ccfde8b Back to development 2019-03-04 09:01:07 +00:00
Tim-Philipp Müller
b6ee888c5d Update docs 2019-02-26 11:38:00 +00:00
Tim-Philipp Müller
f62ee97592 buffer: store sequence number for metas
For metas where order might be significant if multiple metas are
attached to the same buffer, so store a sequence number with the
meta when adding it to the buffer. This allows users of the meta
to make sure metas are processed in the right order.

We need a 64-bit integer for the sequence number here in the API,
a 32-bit one might overflow too easily with high packet/buffer
rates. We could do it rtp-seqnum style of course, but that's a
bit of a pain.

We could also make it so that gst_buffer_add_meta() just keeps metas in
order or rely on the order we add the metas in, but that seems too
fragile overall, when buffers (incl. metas) get merged or split.

Also add a compare function for easier sorting.

We store the seqnum in the MetaItem struct here and not in the
GstMeta struct since there's no padding in the GstMeta struct.
We could add a private struct to GstMeta before the start of
GstMeta, but that's what MetaItem effectively is implementation-
wise. We can still change this later if we want, since it's all
private.

Fixes #262
2019-02-12 17:53:08 +00:00
Thibault Saunier
97aa82387f device-provider: Allow notifying application of device changes
Thi introduces new APIs to post a `DEVICE_CHANGED` message on the
bus so the application is notifies when a device is modified. For
example, if the "defaultness" of a device was changed or any property
that can be changed at any time. Atomically changing the device
object notifying that way allow us to abtract away the internal threads.

New APIS:
  - gst_message_new_device_changed
  - gst_message_parse_device_changed
  - gst_device_provider_device_changed
2019-02-08 13:44:02 -03:00
Tim-Philipp Müller
db7f634327 Update docs 2019-01-17 01:38:59 +00:00
Guillaume Desmottes
e03f086fae gstcaps: add gst_caps_set_features_simple()
Convenient helper setting a caps feature on all the structures of a
caps.
2018-12-11 16:39:30 +01:00
Matthew Waters
4fc4ad87d5 query: add a new bitrate query
Allows determining from downstream what the expected bitrate of a stream
may be which is useful in queue2 for setting time based limits when
upstream does not provide timing information.

Implement bitrate query handling in queue2

https://gitlab.freedesktop.org/gstreamer/gst-plugins-base/issues/60
2018-11-07 15:04:14 +00:00
Havard Graff
8a8f2cebf4 docs: add new GstTestClock API 2018-11-06 15:02:21 +01:00
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
Niels De Graef
8410490727 docs: update gstreamer-sections.txt with new API 2018-11-05 11:06:30 +00:00
Sebastian Dröge
4de89865d4 clock: Add new functions to the documentation 2018-11-03 19:00:35 +02:00
Sebastian Dröge
c3214e8deb harness: Add API for proposing meta APIs from the allocation query
https://bugzilla.gnome.org/show_bug.cgi?id=797350
2018-10-28 17:05:27 +00:00
Philippe Normand
a2832689ad gstelementfactory: Remove MEDIA_HARDWARE FactoryType
Using the MEDIA_ classifier prefix was inappropriate. It is sufficient to
specify the additional klass name that element can set in their metadata.

(follow-up of commit ca4b61c555)

https://bugzilla.gnome.org/show_bug.cgi?id=796921
2018-10-12 17:20:02 +01:00
Philippe Normand
ca4b61c555 gstelementfactory: Add MEDIA_HARDWARE klass classifier
The Harware factory type classifier allows elements (decoders and encoders,
mostly) to advertize they rely on hardware devices to perform encoding or
decoding operations. This classifier can be used by applications to filter and
select only the elements that use hardware devices, for instance to ensure
zero-copy support is enabled for a specific pipeline.

https://bugzilla.gnome.org/show_bug.cgi?id=796921
2018-10-12 10:08:47 +01:00
Yacine Bandou
05a3da347b protection: Add a new definition for unspecified system protection
In some cases the system protection ID is not present in the contents
or in their metadata.
This define is used to set the value of the "system_id" field in GstProtectionEvent,
with this value, the application will use an external information to choose which
protection system to use.

Example: The matroskademux uses this value in the case of encrypted WebM,
the application will choose the appropriate protection system based on the information
received through EME API.

https://bugzilla.gnome.org/show_bug.cgi?id=797231
2018-10-03 17:05:45 +02:00
Vivia Nikolaidou
22d0f40716 queuearray: Add set_clear_func and clear functions
gst_queue_array_clear will clear the GstQueueArray,
gst_queue_array_set_clear_func will set a clear function for each
element to be called on _clear and on _free.

https://bugzilla.gnome.org/show_bug.cgi?id=797218
2018-09-27 19:32:54 +03:00
Tim-Philipp Müller
da8afaeeea docs: gst: default to single include also for protection meta API
https://bugzilla.gnome.org/show_bug.cgi?id=797165
2018-09-19 15:42:34 +01:00
Tim-Philipp Müller
4aef0fca96 docs: libs: move all includes to canonical single header includes
And fix up bogus libs/ prefix for controller lib includes.

https://bugzilla.gnome.org/show_bug.cgi?id=797165
2018-09-19 15:08:34 +01:00
Linus Svensson
2e6089f0c5 docs: Update include directive for gstreamer-base components
Change to always include gst/libs/base.h in order to also
include base-prelude.h, but also because it's the right
thing for people to include anyway.

https://bugzilla.gnome.org/show_bug.cgi?id=797165
2018-09-19 14:56:42 +01:00
Nirbheek Chauhan
415e0e68af meson: Use copy: true for configure_file()
Fixes a warning.
2018-07-25 14:25:59 +05:30
Sebastian Dröge
d196b0b904 typefind: Add _with_extension() variants for typefinding data or a buffer
And make use of that in the typefind element to also be able to make use
of the extension in push mode. It previously only did that in pull mode
and this potentially speeds up typefinding and might also prevent false
positives.

https://bugzilla.gnome.org/show_bug.cgi?id=796865
2018-07-25 01:12:11 +03:00
Sebastian Dröge
6fa351407a miniobject: Add parent pointers to the miniobject to influence writability
Every container of miniobjects now needs to store itself as parent in
the child object, and remove itself again at a later time.

A miniobject is only writable if there is at most one parent, and that
parent is writable itself, and if the reference count of the miniobject
is 1.

GstBuffer (for memories), GstBufferList (for buffers) and GstSample (for
caps, buffer, bufferlist) was updated accordingly.

Without this it was possible to have e.g. a bufferlist with refcount 2
in two places, modifying the same buffer with refcount 1 at the same
time.

https://bugzilla.gnome.org/show_bug.cgi?id=796692
2018-07-09 09:45:45 +02:00
Edward Hervey
438c1c116d sample: Update documentation 2018-05-21 11:36:42 +02:00
Olivier Crête
05298b3093 aggregator: Add get_next_time function for live streams
Add a function to do the right thing for live streams.

https://bugzilla.gnome.org/show_bug.cgi?id=795486
2018-05-16 18:13:04 +02:00
Wind Yuan
fb4fc8fc09 bitwriter: Add a generic bit writer
GstBitWriter provides a bit writer that can write any number of
bits into a memory buffer. It provides functions for writing any
number of bits into 8, 16, 32 and 64 bit variables.

https://bugzilla.gnome.org/show_bug.cgi?id=707543
2018-05-06 17:05:21 +02:00
luz.paz
98200ddd8d Source code typo fixes
https://bugzilla.gnome.org/show_bug.cgi?id=795610
2018-05-01 11:25:21 +01:00
luz.paz
4a402c1c7d Fix typos in comments and docs
Found via `codespell`

https://bugzilla.gnome.org/show_bug.cgi?id=795610
2018-05-01 11:18:03 +01:00
Olivier Crête
dda9a99989 aggregator: Add API to check if a pad has a new buffer
https://bugzilla.gnome.org/show_bug.cgi?id=795332
2018-04-25 14:20:19 -04:00
Mathieu Duponchelle
03e27aa5f0 API: gst_queue_array_peek_nth
https://bugzilla.gnome.org/show_bug.cgi?id=795157
2018-04-14 00:14:56 +02:00
Mathieu Duponchelle
ed5d888ba5 gstsample: new API
gst_sample_set_buffer
gst_sample_set_caps
gst_sample_set_segment
gst_sample_set_info
gst_sample_is_writable
gst_sample_make_writable

This commit makes it possible to reuse a sample object and avoid
unnecessary memory allocations, for example in appsink.

In addition, writability is now required to set the buffer list.

https://bugzilla.gnome.org/show_bug.cgi?id=795144
2018-04-13 23:44:54 +02:00
Edward Hervey
22fac0b212 docs: Update libs documentation
* Make sure all libcheck headers are ignored
* Add all missing symbols
2018-04-02 12:44:15 +02:00
Edward Hervey
9704bb1c4d docs: Update gst core doc 2018-04-02 12:43:57 +02:00
Tim-Philipp Müller
b405b35f8c Back to development 2018-03-20 09:02:34 +00:00
Tim-Philipp Müller
81450fb55b Update docs 2018-03-19 20:09:51 +00:00
Tim-Philipp Müller
f9961026c0 Update docs 2018-03-13 19:08:54 +00:00
Tim-Philipp Müller
e1ac1bc3a8 meson: docs: update api decorators to ignore 2018-03-13 11:54:42 +00:00
Tim-Philipp Müller
99df754c22 docs: fixup for new libs API export decorators 2018-03-13 00:57:37 +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
Sebastian Dröge
89eac59e92 queuearray: Implement pop_tail_struct() for completeness
All other variants of {peek,pop}_{head,tail}_{,struct} were already
implemented.

https://bugzilla.gnome.org/show_bug.cgi?id=794035
2018-03-05 09:39:57 +02:00
Tim-Philipp Müller
28612e15cc Update docs 2018-03-03 21:51:49 +00:00
Tim-Philipp Müller
cbe24ecc89 Add new symbol to docs and .def file
Fixes make check
2018-03-01 22:21:17 +00:00
Tim-Philipp Müller
bbf8f50cde queuearray: add _peek_tail() and _pop_tail()
API: gst_queue_array_pop_tail()
API: gst_queue_array_peek_tail()

These will be needed later for appsrc.
2018-02-19 15:44:04 +00:00
Tim-Philipp Müller
81a767bbdb Back to development 2018-02-15 19:44:14 +00:00
Tim-Philipp Müller
124f2f566f Release 1.13.1 2018-02-15 16:43:52 +00:00
Tim-Philipp Müller
7b7b3e754a docs: add flow combiner ref/unref to docs
So new-in-1.12 index actually has some entries.
2018-02-14 19:37:35 +00:00
Tim-Philipp Müller
8f4e4b0261 docs: add index for new symbols in 1.14 2018-02-14 19:13:28 +00:00
Tim-Philipp Müller
5389254f2f docs: add index for new symbols in 1.12 2018-02-14 19:12:06 +00:00
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
François Laignel
46b1a6e505 message: Add gst_message_writable_structure()
Add gst_message_writable_structure() to be able to add extra fields to
messages (and be on par with GstEvent).

https://bugzilla.gnome.org/show_bug.cgi?id=792928
2018-01-26 16:09:10 +02:00