Commit graph

234 commits

Author SHA1 Message Date
Mathieu Duponchelle
acdb4ce03d gstvalue: expose gst_value_deserialize_with_pspec()
Typing hints can only be passed to gst_value_deserialize()
through the type of the passed-in value. This means deserialization
can only target the desired type for the top-level elements,
making it for example impossible to deserialize an array of
flags to the expected type.

This commit exposes a new function, gst_value_deserialize_full(),
that takes an optional pspec as the extra parameter, and updates
the deserialization code to pass around that pspec, or the
element_spec when recursively parsing the elements of a list-type
value.

This allows for example passing arrays of flags through the
command line or gst_util_set_object_arg, eg:

foo="<bar,bar+baz>"

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/629>
2020-10-03 01:02:55 +02:00
Sebastian Dröge
ed1022fa81 Use gst_object_unref() / gst_object_clear() instead of the GObject ones
To allow the refcounting tracer to work better. In childproxy/iterator
these might be plain GObjects but gst_object_unref() also works on them.
In other places where it is never GstObject, g_object_unref() is kept.
2020-04-20 16:28:52 +00:00
Stefan Sauer
19b28788cf parse: add support for presets
Add new parse syntax: @preset="<preset-name>" to load presets.
Fixes 
2019-12-28 04:02:16 +00:00
Víctor Manuel Jáquez Leal
78041a7748 gst/parse: define pure-parser depending on bison version
After release bison 2.5 the declaration %pure-parser was deprecated
in favor of %define api.pure

Nonetheless, until bison 3.4, the declaration was treated as backward
compatibility, but now bison shows a warning:

  warning: deprecated directive, use ‘%define api.pure’

The patch's approach is to handle both directives according with the
used bison's version, by string replacement at source configuration
stage.
2019-11-05 12:55:08 +01:00
Tim-Philipp Müller
10d9e18f02 Remove autotools build system 2019-10-13 16:10:42 +01:00
Niklas Hambüchen
f5ccb2215a Make get_flex_version.py script executable
Like all other scripts in the same dir.

It has a hashbang, so it should be executable.
2019-05-01 15:46:56 +02:00
Tim-Philipp Müller
8d3ca40e9d meson: dist get_flex_version.py 2019-02-26 13:24:28 +00:00
Nirbheek Chauhan
c164b88ac1 meson: Extract flex version using a regex inside a script
Different builds of Flex on different platforms output different strings
in --version. For example:

macOS:
flex 2.5.35 Apple(flex-31)

Windows:
win_flex.exe 2.6.4
C:\Program Files (x86)\GnuWin32\bin\flex.EXE version 2.5.4

We need to look for a string that looks like a version, which means
a regex till https://github.com/mesonbuild/meson/issues/1609 is fixed.

Fixes https://gitlab.freedesktop.org/gstreamer/gstreamer/issues/356
2019-02-08 16:54:10 +05:30
Mathieu Duponchelle
59c31d8d0f meson: improve flex version parsing
the output of flex --version can contain more than one space
2019-01-23 21:15:09 +01:00
Edward Hervey
7c1d700384 parse: Move variable to block where it's used
There was a dead assignment used outside of the bin/pipeline creation
which was confusing (and unused). Just move that variable to
where it is actually used.

(Note that that variable was not needed outside of that block since
the refactoring done in 2b33d33185 )
2018-12-15 11:46:26 +01:00
Tim-Philipp Müller
46ed0f0489 libs: fix 'inconsistent DLL linkage' warnings on Windows
For each lib we build export its own API in headers when we're
building it, otherwise import the API from the headers.

This fixes linker warnings on Windows when building with MSVC.

The problem was that we had defined all GST_*_API decorators
unconditionally to GST_EXPORT. This was intentional and only
supposed to be temporary, but caused linker warnings because
we tell the linker that we want to export all symbols even
those from externall DLLs, and when the linker notices that
they were in external DLLS and not present locally it warns.

What we need to do when building each library is: export
the library's own symbols and import all other symbols. To
this end we define e.g. BUILDING_GST_FOO and then we define
the GST_FOO_API decorator either to export or to import
symbols depending on whether BUILDING_GST_FOO is set or not.
That way external users of each library API automatically
get the import.

https://bugzilla.gnome.org/show_bug.cgi?id=797185
2018-09-23 23:23:01 +01:00
Tim-Philipp Müller
ce4698487e meson: add option to disable parse-launch pipeline string parser 2018-08-10 00:08:43 +01:00
Sebastian Dröge
b079334c1c gst: Simplify some boolean expressions
(!x || (x && y)) is the same as (!x || y)

https://bugzilla.gnome.org/show_bug.cgi?id=796847
2018-07-24 09:58:31 +03:00
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
Sebastian Dröge
70c86bc998 gst: Fix compilation with latest GLib
g_object_ref() forwards the type of its argument nowadays.

./grammar.y:409:14: error: assignment from incompatible pointer type [-Werror=incompatible-pointer-types]
gstchildproxy.c:212:7: error: assignment from incompatible pointer type [-Werror=incompatible-pointer-types]
2018-03-20 16:11:01 +02:00
Nirbheek Chauhan
3c5edc76e5 meson: Use new find_program fallback syntax
We use this syntax in libs/gst/helpers/meson.build already.
2017-12-05 12:26:44 +05:30
Tim-Philipp Müller
f28435b0d4 meson: find python3 via python3 module
And rename python3 variable in meson build files for clarity.

https://bugzilla.gnome.org/show_bug.cgi?id=783198
2017-07-07 12:07:09 +01:00
Olivier Crete
7c01da8476 meson: Only check the first parameter
https://bugzilla.gnome.org/show_bug.cgi?id=781155
2017-04-11 13:24:45 -03:00
Thibault Saunier
57fd614e02 meson: Check bison and flex are recent enough
https://bugzilla.gnome.org/show_bug.cgi?id=781155
2017-04-11 10:59:34 -03:00
Sebastian Dröge
ef42e3811e parse: Don't translate the "bin" element name
Otherwise we won't be able to create bins, there is no element called
"Behälter" if you're using a German locale.

https://bugzilla.gnome.org/show_bug.cgi?id=777998
2017-01-31 21:20:22 +02:00
Sebastian Dröge
80c5fd50db parse: Don't hold element's object lock while querying element pads' caps
This can easily deadlock if the element uses the object lock for
something internally, like posting an error message. Use an GstIterator
for iterating over the pads instead.

https://bugzilla.gnome.org/show_bug.cgi?id=777449
2017-01-18 15:43:13 +02:00
Nirbheek Chauhan
4d179024f0 meson: Don't search for python3 twice 2016-12-17 00:00:11 +05:30
Tim-Philipp Müller
89b413ef15 parse: better error message when linking two elements with capsfilter fails
https://bugzilla.gnome.org/show_bug.cgi?id=760550
2016-11-12 10:55:23 +00:00
Jan Schmidt
5a5ae1be1f parse-launch: Support linking all pads with new operator
Introduce a new operator ':' - e.g. element1 ':' element2

For example, 'uridecodebin : encodebin' -
if the encodebin has multiple profiles compatible with the
decodebin, multiple links will be created.

With '!' , after one delayed link is successfully done, the
pad-added callback is disconnected.

https://bugzilla.gnome.org/show_bug.cgi?id=751450
2016-11-02 12:04:33 +11:00
Tim-Philipp Müller
f7391936ce parse: fix erroneous use of _("")
Fixes xgettext warnings when doing 'make update-po':
gst/parse/grammar.y:217: warning: Empty msgid.  It is reserved by GNU gettext:
                                  gettext("") returns the header entry with
                                  meta information, not the empty string.
2016-10-23 22:11:08 +01:00
Nirbheek Chauhan
b2f9808722 Add support for Meson as alternative/parallel build system
https://github.com/mesonbuild/meson

With contributions from:

Tim-Philipp Müller <tim@centricular.com>
Mathieu Duponchelle <mathieu.duponchelle@opencreed.com>
Jussi Pakkanen <jpakkane@gmail.com> (original port)

Highlights of the features provided are:
* Faster builds on Linux (~40-50% faster)
* The ability to build with MSVC on Windows
* Generate Visual Studio project files
* Generate XCode project files
* Much faster builds on Windows (on-par with Linux)
* Seriously fast configure and building on embedded

... and many more. For more details see:

http://blog.nirbheek.in/2016/05/gstreamer-and-meson-new-hope.html
http://blog.nirbheek.in/2016/07/building-and-developing-gstreamer-using.html

Building with Meson should work on both Linux and Windows, but may
need a few more tweaks on other operating systems.
2016-08-19 21:26:14 +01:00
Nirbheek Chauhan
1c8711816e gst/parse: Also pass -DGST_EXPORTS here
This static library gets included directly into libgstreamer-1.0.so, so it needs
the same GST_EXPORTS definition as the rest of the code that's compiled into
that otherwise it will try to find the constants it uses from gstinfo via DLL
importing (__declspec(dllimport)).

Fixes https://ci.gstreamer.net/job/cerbero-cross-mingw32/4393/
2016-05-23 14:24:16 +01:00
Carlos Rafael Giani
fdd5d22828 parse-launch: Add flag for placing elements in a bin instead of a pipeline
By default, gst_parse_launch_full() creates a GstPipeline if there's more
than one toplevel element. Add a flag to let it use a GstBin instead.

Also fix the parser to let it use this flag for GST_TYPE_ELEMENT property
values, to avoid having GstPipelines inside other GstPipelines.

https://bugzilla.gnome.org/show_bug.cgi?id=763457
2016-03-24 14:50:12 +02:00
Stefan Sauer
bdc60306c7 parse_launch: make nicer log messages
Add two macros to build nicer element/pad name strings. The macros avoid
printing "(NULL)" and print the element type in addition to the name.
2016-01-03 22:58:06 +01:00
Stefan Sauer
46a851b279 parse-launch: warn when still waiting to plug sub-pipelines after no-more-pads
The parse-launch API automagically handles dynamic pads and performs delayed
linking as needed, without any feedback about whether the linking succeeded or
not however. If a delayed dynamic link can't be completed for whatever reason,
parse-launch will simply wait in case a suitable pad appears later. This may
never happen though, in which case the pipeline may just hang forever.

Try to improve this by connecting to the "no-more-pads" signal of any element
with dynamic pads and posting a warning message for the related outstanding
dynamic links when "no-more-pads" is emitted.

Fixes 
2016-01-03 22:58:06 +01:00
Stefan Sauer
583304959a grammar.y: remove trailing whitespace 2016-01-03 11:39:56 +01:00
Tim-Philipp Müller
8e6561be91 Remove obsolete Android build cruft
This is not needed any longer.
2015-04-26 17:49:44 +01:00
Luis de Bethencourt
c565c5ecb4 parse: check before truncating strings
Don't truncate the last character of a string if it isn't necessary.

https://bugzilla.gnome.org/show_bug.cgi?id=688625
2015-03-27 17:16:07 +00:00
Sebastian Rasmussen
0887020581 parse: Unref reference to enclosing bins
Previously all reference to enclosing bins of an element were leaked
when doing delaying setting a property.

Fixes https://bugzilla.gnome.org/show_bug.cgi?id=733697
2014-07-28 08:41:27 -03:00
Sebastian Dröge
191ca95fd9 parse: Don't dist the bison and flex generated headers
https://bugzilla.gnome.org/show_bug.cgi?id=727253
2014-04-07 11:36:58 +02:00
Fabian Kirsch
ffe072f694 parse: Some minor fixes
Fix destructor segfaulting
Expect 0 grammar-ambiguities
Fix order of bin-properties assignment

https://bugzilla.gnome.org/show_bug.cgi?id=710034
2014-01-16 15:38:51 +01:00
Sebastian Dröge
f15f4ec8aa parse: Make sure to create and link chains in the order as written
Make this work again:
audiotestsrc ! tee name=t  t.src_0 ! queue ! fakesink  t.src_1 ! queue ! fakesink
and this fail again:
audiotestsrc ! tee name=t  t.src_1 ! queue ! fakesink  t.src_0 ! queue ! fakesink

as tee just counts itself and does not care about the pad names we request
from it.
2014-01-14 15:52:26 +01:00
Sebastian Dröge
156d925cff parse: Remove some C99-style comments 2014-01-14 13:46:24 +01:00
Sebastian Dröge
dd086a4e6e parse: Use GSlice for allocating and freeing links and chains 2014-01-14 13:46:24 +01:00
Sebastian Dröge
748690aba1 parse: Add comment about why we disable the "tracing"
It did not print anything useful before anyway, everything
was commented out.

Also remove some unneeded struct members.
2014-01-14 13:46:24 +01:00
Fabian Kirsch
2b33d33185 parse: Refactor grammar, make it more consistent and fix conflicts
https://bugzilla.gnome.org/show_bug.cgi?id=710034
2014-01-14 13:46:22 +01:00
Sebastian Dröge
c3181fa5df parse: Use GLib malloc/free/realloc functions
https://bugzilla.gnome.org/show_bug.cgi?id=720100
2013-12-27 12:55:40 +01:00
Sebastian Dröge
a400dd2f47 parse: Don't define yyscan_t twice
https://bugzilla.gnome.org/show_bug.cgi?id=720316
2013-12-14 19:09:05 +01:00
Olivier Crête
3c4d54fd88 parse: Manually insert priv_gst_parse_yyget/set_column prototypes for older flex
Older versions of flex (before 2.5.36) don't add the prototype, so it must
be added manually. We can't check by the version number, because Debian/Ubuntu
patched it into their 2.5.35 at some point.
2013-11-29 14:02:24 -05:00
Fabian Kirsch
56d74ddb64 parse: fix segfaulting prototype-mismatch
Now YYDEBUG is always set, so check it's value

https://bugzilla.gnome.org/show_bug.cgi?id=712679
2013-11-28 19:05:23 -05:00
Kerrick Staley
bd2a01cfe2 parse: make grammar.y work with Bison 3
YYLEX_PARAM is no longer supported in Bison 3.

https://bugzilla.gnome.org/show_bug.cgi?id=706462
2013-08-21 10:02:26 +01:00
Brendan Long
48319d4be2 parse: Add GST_FLAG_NO_SINGLE_ELEMENT_BINS
This makes gst_parse_bin_from_description() return an element instead of
a bin if there's only one element. Also changed gstparse.c to use this,
so gst-launch won't create superfluous bins.

https://bugzilla.gnome.org/show_bug.cgi?id=703405
2013-08-19 11:30:15 +02:00
Tim-Philipp Müller
9a38d713bd parse: fix up for gst_child_proxy_lookup() only working on child proxy interfaces
https://bugzilla.gnome.org/show_bug.cgi?id=681681
2012-08-13 10:27:09 +01:00
Tim-Philipp Müller
de7601bb2d parse: fix for new GstChildProxy::child-added signal callback signature
Fixes crash with gst-launch-1.0 uridecodebin uri=... suburi=... ! ..
2012-08-08 00:59:07 +01:00
Wim Taymans
7b19f3eab2 parse: fix some debug 2012-07-17 10:04:26 +02:00