When the probe returns GST_PAD_PROBE_REMOVE and gets called concurrently
from the streaming thread while we're in the callback here, the hook has
already been destroyed by the time we've reacquired the object lock.
Consequently, cleanup_hook gets passed an invalid pointer.
Keep another reference to the hook alive to avoid this situation.
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/873>
We shouldn't fail to load plugins just because we don't
recognise the license string. It's not our job to validate
licenses, and the license list is outdated and ambiguous
anyway.
Also add MPL-2.0 to the list, and fix some defunct license
URLs in the code comments.
Get rid of the hard-coded skip index, doesn't really buy us
much versus just skipping with a few strlens, and is harder
to maintain.
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/864>
Normally uri is get from user input and invalid user input should not
be treated as critical error. Moved gst_uri_is_valid outside of
g_return_val_if_fail.
NULL uri is checked inside of gst_uri_is_valid and is correctly
treated as critical error, removed unneeded checks of NULL uri outside
of gst_uri_is_valid function.
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/816>
When getting backtraces, we were always creating a new Dwfl context and then
discarding it. The problem with that is that it resulted in having to re-scan a
lot of information for every single backtrace.
In order to fix that issue, use a global on-demand Dwfl context and use it with
a lock.
Furthermore, we were scanning the mappings of the
process (dwfl_linux_proc_report) for *every single step* in the backtrace, and
that function is horrendously expensive (does sscanf on /proc/PID/maps
...). While there is a possibility that new mappings might be available (new
plugins being loaded for example), we can limit ourselves to just do it once per
backtrace.
These two modifications speed up the elements_leaks unit test (which traces all
pads with full backtraces) by a factor of 6.
Partially fixes#567
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/504>
If a property is supplied to gst-launch-1.0 to set on a property that
implements GstChildProxy, it would always accept any property name
and try to set it later. This means that (for example) decodebin
will accept and not complain about property names that can never exist like:
gst-launch-1.0 videotestsrc ! decodebin NON-EXISTING_PROPERTY=adsfdasf ! fakesink
Instead, only try to do deferred property setting for property names
that contain the :: separator that indicates it's a setting on a child
that might appear later.
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/832>
This allows us to cover the case where we're on some unknown system that
doesn't have a known native precision monotonic time source. Sadly this
reintroduces some of the complexity removed in previous commits.
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/829>
The gst_system_clock_get_internal_time and
gst_system_clock_get_resolution functions had some nested defined checks
making this code somewhat harder to reason about and much harder to
change. The logical meaning of the checks has changed but the actual
code coming out of the pre-processor should not have changed
significantly. The main logical change was flattening the checks for
existence of posix timing functionality, from what I can tell these
functions aren't available on Windows where they were trying to be
included. I have checked the Linux and macOS output and they are
functionally unchanged.
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/829>
The name `gst_element_get_request_pad()` is confusing to people
learning GStreamer. `gst_element_request_pad_simple()` aims at
providing the exact same functionality, while making it more
explicit it is a simplified `gst_element_request_pad()`.
`gst_element_request_pad_simple()` is consistent with other
functions such as `gst_element_seek_simple`.
This commit deprecates `gst_element_get_request_pad()` so that a
compilation warning is emitted when used and incite developers
to use the more explicit `gst_element_request_pad_simple()`.
See also https://gitlab.freedesktop.org/gstreamer/gstreamer-rs/-/merge_requests/743#note_886586
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/802>
Protect clearing probes against concurrent modification which might happen
due to dispose does NOT guarantee that the object is not used anymore, as
it could be referenced again and so being continued used.
So, as in the rest of places where probes hook list is used, on dispose
it should be accessed holding the mutex "GST_OBJECT_LOCK (pad);" as
GHookList is not thread-safe.
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/798>
The ret test is unrelevant and confusing.
We dont want the code to fail and the register
to succeed by example.
In the case of a conditional element_init,
the element should be defined with
GST_ELEMENT_REGISTER_DEFINE_CUSTOM instead
of GST_ELEMENT_REGISTER_DEFINE_WITH_CODE.
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/768>
* Document virtual methods in standalone comments, in order to properly
annotate them
* Don't repeat what annotations are stating with respect to ownership
transfer, nullability
* Mark GstControlBinding ABI field as private
* Misc cleanup / typo fixes / addition of links
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/758>
* Don't mention explicitly that API is MT safe, this implies that
other API is not. GStreamer API is assumed to be MT safe, thread
safety should only be explicitly mentioned when API is *not* MT safe
* Don't repeat what annotations are stating with respect to ownership
transfer, nullability
* Document virtual methods in standalone comments, so that parameters
can be documented. This is not critical here, as parameters do not
need annotations / specific documentation, but serves as an up to
date example
* Document enumeration members in standalone comments, so that their
Since tag is accounted for by gobject-introspection
* Misc cleanup / typo fixes / addition of links
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/756>
