Commit graph

1075 commits

Author SHA1 Message Date
Sebastian Dröge
1dbb27f3a7 utils: Add gst_pad_link_maybe_ghosting() for consistency
We already had a _full() version, but having that alone seems inconsistent.
Add a non-full version that mirrors the behaviour of gst_pad_link() vs
gst_pad_link_full().
2016-06-08 12:12:28 +03:00
Sebastian Dröge
8177173db0 element: Add gst_element_call_async()
This calls a function from another thread, asynchronously. This is to be
used for cases when a state change has to be performed from a streaming
thread, directly via gst_element_set_state() or indirectly e.g. via SEEK
events.

Calling those functions directly from the streaming thread will cause
deadlocks in many situations, as they might involve waiting for the
streaming thread to shut down from this very streaming thread.

This is mostly a convenience function around a GThreadPool and is for example
used by GstBin to continue asynchronous state changes.

https://bugzilla.gnome.org/show_bug.cgi?id=760532
2016-04-27 18:51:33 +03:00
Tim-Philipp Müller
6e3fb7af52 element: add API to get property change notifications via messages
Be notified in the application thread via bus messages about
notify::* and deep-notify::* property changes, instead of
having to deal with it in a non-application thread.

API: gst_element_add_property_notify_watch()
API: gst_element_add_property_deep_notify_watch()
API: gst_element_remove_property_notify_watch()
API: gst_message_new_property_notify()
API: gst_message_parse_property_notify()
API: GST_MESSAGE_PROPERTY_NOTIFY

https://bugzilla.gnome.org/show_bug.cgi?id=763142
2016-04-08 13:27:59 +01:00
Matthew Waters
f876306638 utils: expose pad_link_maybe_ghosting
This is a useful function to automatically add ghost pads when linking
two elements across bin boundaries without know their exact parentage.

e.g. when using gst_parse_bin_from_description (with or without it ghosting pads),
one can simply retreive the src/sink pads from the bin to link to another pad.

Similar functionality is provided by gst_element_link_pads{_full}() however only
by pad name rather than by actual pads.

API: gst_pad_link_maybe_ghosting_full

https://bugzilla.gnome.org/show_bug.cgi?id=764176
2016-04-06 23:26:41 +10:00
Tim-Philipp Müller
fa12d23a17 element: add gst_element_class_add_static_pad_template()
Pretty much every single element does

  gst_element_class_add_pad_template (element_class,
      gst_static_pad_template_get (&some_templ));

which is both confusing and unnecessary. We might just
as well add a function to do that in one step.

https://bugzilla.gnome.org/show_bug.cgi?id=762778
2016-02-28 13:10:03 +00:00
Stefan Sauer
d15da9e221 tracer: update the docs
Add the new enum and flags. Remove the GstTracerRecordPrivate.
2016-01-16 21:04:46 +01:00
Tim-Philipp Müller
8b88fc487f gst.h: Don't spew warnings if GST_USE_UNSTABLE_API is not defined
Only hide GstTracer and GstTracerRecord API behind GST_USE_UNSTABLE_API,
but don't spew any warnings, otherwise everyone has to define this
to avoid compiler warnings.

This reverts parts of commit 89ee5d948d.
2016-01-16 16:00:16 +00:00
Stefan Sauer
89ee5d948d tracer: add a GFlag for the tracer scope
Port all tracers. Add the GST_USE_UNSTABLE_API flag to the internal CFLAGS so
that we don't have to specify this for gir, docs, mkenum, ...
2016-01-16 13:31:51 +01:00
Stefan Sauer
10b78d872b tracerrecord: add a log record class
We use this class to register tracer log entry metadata and build a log
template. With the log template we can serialize log data very efficiently.
This also simplifies the logging code, since that is now a simple varargs
function that is not exposing the implementation details.

Add docs for the new class and basic tests.

Remove the previous log handler.

Fixes #760267
2016-01-15 21:54:01 +01:00
Matthew Waters
347734e529 info: expose debugging printf functions
Other gst libraries and/or elements may want to add some debug logging to an
external debug system or implement delayed debugging for performance reasons.

Exposes the internal __gst_vasprintf as gst_info_vasprintf which has a fallback
to g_vasprintf if the debug system is disabled.

API: gst_info_vasprintf
API: gst_info_strdup_vprintf
API: gst_info_strdup_printf

https://bugzilla.gnome.org/show_bug.cgi?id=760421
2016-01-13 11:56:14 +11:00
Stefan Sauer
8968af3589 tracerutils: document the tracer hook functions
Document all tracer hook function pointer together with the detail string that
one needs to use with gst_tracing_register_hook().
2016-01-07 22:41:32 +01:00
Stefan Sauer
5e40639be7 tracer: make gst_tracing_register_hook_id static
We don't need to expose this as public API. Change the only plugin that was
using it.
2016-01-06 20:46:58 +01:00
Stefan Sauer
110451397a docs: add more core api to the right sections
Add new and documented api reported in -unused.txt to -section.txt.
2016-01-06 17:59:23 +01:00
Stefan Sauer
cf0738e43e docs: exclude more header from doc-scan
Exclude gst/printf/*.h and a few generated .h files from the api-scan. This
makes -unused.txt report file from gtkdoc useful again.
2016-01-06 17:59:23 +01:00
Sebastian Dröge
fb01dd000b clock: Add gst_clock_unadjust_with_calibration()
We already have gst_clock_adjust_with_calibration() and
gst_clock_unadjust_unlocked(), having the other variant is useful.
2016-01-06 16:25:38 +02:00
Stefan Sauer
0c952d0711 docs: add new pad-event function to the docs 2016-01-06 13:33:39 +01:00
Stefan Sauer
0be259f44f docs: hide internal tracer api from docs
Also address warnigns regarding the unstable tracer api.
2016-01-06 13:30:25 +01:00
Stefan Sauer
efa316d666 docs: add the tracer to the docs
Add GstTracer and GstTracerFactory to the core docs.
2016-01-06 13:05:53 +01:00
Tim-Philipp Müller
7c992cfbe0 docs: fix some warnings and add some since markers 2016-01-03 17:50:35 +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
Guillaume Desmottes
f0ee10d778 doc: add GST_{PTR,SEGMENT}_FORMAT
Very useful formats in debug output so best to have them in the
generated doc.

https://bugzilla.gnome.org/show_bug.cgi?id=756115
2015-10-26 09:19:13 +00:00
Vivia Nikolaidou
6ff8fdfc47 segment: Add _full variants of all stream/running_time from/to segment position functions
See formula clarifications in design docs for calculation details.

https://bugzilla.gnome.org/show_bug.cgi?id=756564
2015-10-23 15:50:38 +03:00
Tim-Philipp Müller
bc5c199bc5 docs: mention xdot utility to view .dot files directly 2015-10-16 15:59:49 +01:00
Matthew Waters
d5ded15889 bin: implement context propagation when adding elements
When adding an element to a bin we need to propagate the GstContext's
to/from the element.

This moves the GstContext list from GstBin to GstElement and adds
convenience functions to get the currently set list of GstContext's.

This does not deal with the collection of GstContext's propagated
using GST_CONTEXT_QUERY.  Element subclasses are advised to call
gst_element_set_context if they need to propagate GstContext's
received from the context query.

https://bugzilla.gnome.org/show_bug.cgi?id=705579
2015-09-28 18:21:59 +10:00
Vivia Nikolaidou
44ba1565d9 segment: Replaced gst_segment_to_position with gst_segment_position_from_running_time
gst_segment_to_position might cause confusion, especially with the addition of
gst_segment_position_from_stream_time . Deprecated gst_segment_to_position
now, and replaced it with gst_segment_position_from_running_time.

Also added unit tests.
2015-09-26 00:00:08 +02:00
Vivia Nikolaidou
c0d4b1b646 segment: Added gst_segment_position_from_stream_time()
gst_segment_position_from_stream_time() will convert stream time into a
position in the segment so that gst_segment_to_stream_time() with that
position returns the same stream time. It will return -1 if the stream time
given is not inside the segment.
2015-09-25 23:59:53 +02:00
Arun Raghavan
eb88486288 Revert "docs: Make sure gst_debug_bin_to_dot_data() is documented"
This reverts commit 0dffeb0301.

The commit is erroneous and documents the function twice.
2015-09-09 13:10:04 +05:30
Arun Raghavan
0dffeb0301 docs: Make sure gst_debug_bin_to_dot_data() is documented
Thanks to Nirbheek Chauhan <nirbheek@centricular.com> for pointing this
out.
2015-09-09 12:58:07 +05:30
Thiago Santos
8c9da14995 docs: add the new pad accept-template flag to the docs 2015-08-15 06:43:05 -03:00
Tim-Philipp Müller
2eef95526b docs: add a few more new symbols and defines 2015-07-28 22:31:51 +01:00
Tim-Philipp Müller
ba296a2331 docs: add new function to API docs 2015-07-16 10:36:36 +01:00
Hyunjun Ko
7ecef53dbb bufferlist: add new api gst_buffer_list_copy_deep
https://bugzilla.gnome.org/show_bug.cgi?id=751420
2015-06-24 10:52:56 +02:00
Sebastian Dröge
a9109b2fe6 sample: Add new API to the docs 2015-06-22 13:33:29 +02:00
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
b3f42b0c35 doc: Add gst_buffer_copy_deep() 2015-06-13 20:02:18 -04:00
Nicolas Dufresne
cbb9529b85 doc: Add indexes of added APIs
One of the nice feature in GTK doc is that it generate indexes
of added APIs base on the since marker. Include that in our doc
while fixing the issue of duplicate ID (produce xml contains that
id it seems)
2015-06-13 19:46:21 -04:00
Nicolas Dufresne
8bb1fdce18 doc: Give gstconfig a nice name
As all other section do have a nice came case name, it seems
more consistent.
2015-06-13 13:24:13 -04:00
Nicolas Dufresne
226196e36f doc: Add missing gst_event_new/parse_protection 2015-06-13 13:19:21 -04:00
Nicolas Dufresne
bc120a166e doc: Give gstprotection section a nice title 2015-06-13 13:19:05 -04:00
Nicolas Dufresne
8e5303151e clock: Add new signed time macro to the doc
https://bugzilla.gnome.org/show_bug.cgi?id=740575
2015-06-12 17:21:15 -04:00
Matthew Waters
d61ba38118 memory: provide a mem_map_full that takes the GstMapInfo
Follow up of 7130230ddb

Provide the memory implementation the GstMapInfo that will be used to
map/unmap the memory.  This allows the memory implementation to use
some scratch space in GstMapInfo to e.g. track different map/unmap
behaviour or store extra implementation defined data about the map
in use.

https://bugzilla.gnome.org/show_bug.cgi?id=750319
2015-06-12 16:12:10 +10:00
Sebastian Dröge
abfcffde46 pipeline: Add gst_pipeline_set_latency(), getter and GObject property
This overrides the default latency handling and configures the specified
latency instead of the minimum latency that was returned from the LATENCY
query.

https://bugzilla.gnome.org/show_bug.cgi?id=750782
2015-06-11 12:55:34 +02:00
Stefan Sauer
39d3779c53 docs: remove variables that we define in the snippet from common
This is syncing our Makefile.am with upstream gtkdoc.
2015-06-07 17:17:36 +02:00
Sebastian Dröge
fe3249b0e1 clock: Add GST_CLOCK_FLAG_NEEDS_STARTUP_SYNC and related API
gst_clock_wait_for_sync(), gst_clock_is_synced() and gst_clock_set_synced()
plus a signal to asynchronously wait for the clock to be synced.

This can be used by clocks to signal that they need initial synchronization
before they can report any time, and that this synchronization can also get
completely lost at some point. Network clocks, like the GStreamer
netclientclock, NTP or PTP clocks are examples for clocks where this is useful
to have as they can't report any time at all before they're synced.

https://bugzilla.gnome.org/show_bug.cgi?id=749391
2015-06-03 13:53:27 +02:00
Jan Schmidt
f9e5178dd1 gstvalue: Add GstFlagSet type
GstFlagSet is a new type designed for negotiating sets
of boolean capabilities flags, consisting of a 32-bit
flags bitfield and 32-bit mask field. The mask field
indicates which of the flags bits an element needs to have
as specific values, and which it doesn't care about.

This allows efficient negotiation of arrays of boolean
capabilities.

The standard serialisation format is FLAGS:MASK, with
flags and mask fields expressed in hexadecimal, however
GstFlagSet has a gst_register_flagset() function, which
associates a new GstFlagSet derived type with an existing
GFlags gtype. When serializing a GstFlagSet with an
associated set of GFlags, it also serializes a human-readable
form of the flags for easier debugging.

It is possible to parse a GFlags style serialisation of a
flagset, without the hex portion on the front. ie,
+flag1/flag2/flag3+flag4, to indicate that
flag1 & flag4 must be set, and flag2/flag3 must be unset,
and any other flags are don't-care.

https://bugzilla.gnome.org/show_bug.cgi?id=746373
2015-05-25 16:23:33 +10:00
Stefan Sauer
b8c6ebd0f2 gstobject: add gst_object_has_as_ancestor and deprecate previous function
The old gst_object_has_ancestor will call the new code. This establishes the
symetry with the new gst_object_has_as_parent.

API: gst_object_has_as_ancestor()
2015-05-15 13:55:19 +02:00
Stefan Sauer
3492105a06 gstobject: rename gst_object_has_parent to gst_object_has_as_parent
This avoid confusion with a potential punction that check if a gstobject has-a
parent.

API: gst_object_has_as_parent()
2015-05-15 13:45:18 +02:00
Alex Ashley
abdafb0d64 protection: add GstProtectionMeta to support protected content
In order to support some types of protected streams (such as those
protected using DASH Common Encryption) some per-buffer information
needs to be passed between elements.

This commit adds a GstMeta type called GstProtectionMeta that allows
protection specific information to be added to a GstBuffer. An example
of its usage is qtdemux providing information to each output sample
that enables a downstream element to decrypt it.

This commit adds a utility function to select a supported protection
system from the installed Decryption elements found in the registry.
The gst_protection_select_system function that takes an array of
identifiers and searches the registry for a element of klass Decryptor that
supports one or more of the supplied identifiers. If multiple elements
are found, the one with the highest rank is selected.

This commit adds a unit test for the gst_protection_select_system
function that adds a fake Decryptor element to the registry and then
checks that it can correctly be selected by the utility function.

This commit adds a unit test for GstProtectionMeta that creates
GstProtectionMeta and adds & removes it from a buffer and performs some
simple reference count checks.

API: gst_buffer_add_protection_meta()
API: gst_buffer_get_protection_meta()
API: gst_protection_select_system()
API: gst_protection_meta_api_get_type()
API: gst_protection_meta_get_info()

https://bugzilla.gnome.org/show_bug.cgi?id=705991
2015-04-18 12:24:06 +01:00
Nicolas Dufresne
e684e9ea68 doc: Add gst_segment_to_running_time_full 2015-04-03 16:32:16 -04:00
Vincent Penquerc'h
d6ae9c0feb segment: add gst_segment_is_equal
It beats memcmp due to the 'reserved' fields.

API: gst_segment_is_equal()

Found via, but probably not directly linked to,
https://bugzilla.gnome.org/show_bug.cgi?id=738216
2015-04-03 12:10:33 +01:00