An object that can be waited on and asked for asynchronous values.
In much the same way as promise/futures in js/java/etc
A callback can be installed for when the promise changes state.
Original idea by
Jan Schmidt <jan@centricular.com>
With contributions from
Nirbheek Chauhan <nirbheek@centricular.com>
Mathieu Duponchelle <mathieu@centricular.com>
https://bugzilla.gnome.org/show_bug.cgi?id=789843
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
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)
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
These are meant to specify features in caps that are required
for a specific structure, for example a specific memory type
or meta.
Semantically they could be though of as an extension of the media
type name of the structures and are handled exactly like that.
Remove GST_MAJORMINOR and replace it by GST_API_VERSION
Also set GST_VERSION_{MAJOR,MINOR,MICRO,NANO} explicitely
now.
All versions are at 1.0.0 now for the release soon but
API/ABI can still change until the 1.0.0 release.
Next release versions until 1.0.0 will be 0.10.9X and
these will be release candidates. GST_VERSION_* will
nonetheless stay at 1.0.0.0.
There are many good use cases for GstIndex and we want
to add it back again in some form, but possibly not with
the current API, which is very powerful (maybe too powerful),
but also a bit confusing. At the very least we'd need to
make the API bindings-friendly.
Add a GstControlBinding class. This is a preparation for making the
controlsources generate double valued control curves and do the gparamspec
mapping in the control binding. Now the API in GstObject is again mostly
for convenience.
This make the controller even more lightweight (no extra object, no extra lock,
less indirections). For object that don't use the controller the only 'overhead'
is a 3 unused fields in the gst_object structure.
It was a bit too clever, and didn't really work as an API,
confusing people to no end. Better implement specific methods
whether an interface is usable/available/ready on the interface
itself, or even add GError arguments, rather than try to have
per-instance interfaces.
Original commit message from CVS:
* docs/Makefile.am:
* docs/gst/gstreamer-docs.sgml:
* docs/gst/gstreamer-sections.txt:
* docs/gst/running.xml:
* docs/libs/gstreamer-libs-docs.sgml:
Change to xinclude based build - its faster and easier to maintain.
Original commit message from CVS:
* docs/gst/gstreamer-docs.sgml:
* docs/gst/gstreamer-sections.txt:
* gst/gstparamspecs.c:
* gst/gstparamspecs.h:
Add GST_PARAM_CONTROLLABLE and GST_PARAM_USER_SHIFT. Move paramspec
docs to own section.
* gst/gstvalue.c:
This now only documents GValue.
* docs/libs/gstreamer-libs-sections.txt:
* libs/gst/controller/gstcontroller.h:
Remove GST_PARAM_CONTROLLABLE.
Original commit message from CVS:
* configure.ac:
Add checks for poll, ppoll and pselect.
* docs/gst/gstreamer-docs.sgml:
* docs/gst/gstreamer-sections.txt:
Add docs for GstPoll.
* gst/Makefile.am:
* gst/gst.h:
* gst/gstpoll.c: (find_index), (selectable_fds),
(pollable_timeout), (choose_mode), (pollfd_to_fd_set),
(fd_set_to_pollfd), (gst_poll_new), (gst_poll_free),
(gst_poll_set_mode), (gst_poll_get_mode),
(gst_poll_add_fd_unlocked), (gst_poll_add_fd),
(gst_poll_remove_fd), (gst_poll_fd_ctl_write),
(gst_poll_fd_ctl_read_unlocked), (gst_poll_fd_ctl_read),
(gst_poll_fd_has_closed), (gst_poll_fd_has_error),
(gst_poll_fd_can_read_unlocked), (gst_poll_fd_can_read),
(gst_poll_fd_can_write), (gst_poll_wait),
(gst_poll_set_controllable), (gst_poll_restart),
(gst_poll_set_flushing):
* gst/gstpoll.h:
Add generic poll abstraction. We ideally don't want to have this in core
here but in glib intead...
This code will be used in various network elements and ultimately for
the nanosecond precision monotonic clock (that's why it's here in core).
It'll allow us to implement cancelable socket operations for windows too.
* tests/check/Makefile.am:
* tests/check/gst/gstpoll.c: (test_poll_wait), (GST_START_TEST),
(delayed_stop), (delayed_restart), (delayed_flush),
(delayed_control), (gst_poll_suite):
Add GstPoll unit test.
Original commit message from CVS:
* docs/gst/Makefile.am:
* docs/libs/Makefile.am:
Remove cruft and do some cleanups.
* docs/gst/gstreamer-docs.sgml:
* docs/libs/gstreamer-libs-docs.sgml:
Prepare for comming gtkdoc features (rebase against online docs).
Original commit message from CVS:
document core plugins in a separate document just like all the
others
rename these plugins to something starting with core
Original commit message from CVS:
* docs/gst/gstreamer-docs.sgml:
* docs/gst/gstreamer-sections.txt:
* docs/libs/gstreamer-libs-docs.sgml:
* docs/libs/gstreamer-libs-sections.txt:
moving documentation from core to lib
