Commit graph

20 commits

Author SHA1 Message Date
Jan Schmidt
c0561fb916 meson: Fix plugin symbol export for C++ sources/plugins
The symbol visibility=hidden flag was only being applied to C
compilation, so plugins implemented in C++ would leak extra symbols
than the 2 _get_desc() and _register().

That also showed that the gst-libs opencv C++ lib was not marking
symbols for export correctly because the BUILDING_GST_OPENCV define
wasn't in the C++ args, so fix that too.
2019-11-12 13:00:42 +00:00
Tim-Philipp Müller
f218ec2794 Remove autotools build system 2019-10-14 13:54:27 +01:00
Christoph Reiter
22c6a4085f meson: fix build with opencv=enabled and opencv4. Fixes #964
Having the opencv feature enabled would lead to the opencv3 dependency
being required which failed with only opencv4 being available.

Instead don't require anything and error out at the end if the feature was enabled
but no dependency was found.
2019-05-06 07:21:45 +00:00
Nicola Murino
26cabf9b1f opencv: port to c++ 2019-02-02 18:34:10 +00:00
Nicola Murino
b0773c6ea7 opencv: make compatible with opencv 4
Closed #826
2018-11-26 13:29:03 +00:00
Nicola Murino
890dbb560f opencv: fix indentation 2018-11-26 13:29:03 +00:00
Tim-Philipp Müller
b6411ae74c libs: fix API export/import and 'inconsistent linkage' on MSVC
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.

While we're at it, add new GST_API_EXPORT in config.h and use
that for GST_*_API decorators instead of GST_EXPORT.

The right export define depends on the toolchain and whether
we're using -fvisibility=hidden or not, so it's better to set it
to the right thing directly than hard-coding a compiler whitelist
in the public header.

We put the export define into config.h instead of passing it via the
command line to the compiler because it might contain spaces and brackets
and in the autotools scenario we'd have to pass that through multiple
layers of plumbing and Makefile/shell escaping and we're just not going
to be *that* lucky.

The export define is only used if we're compiling our lib, not by external
users of the lib headers, so it's not a problem to put it into config.h

Also, this means all .c files of libs need to include config.h
to get the export marker defined, so fix up a few that didn't
include config.h.

This commit depends on a common submodule commit that makes gst-glib-gen.mak
add an #include "config.h" to generated enum/marshal .c files for the
autotools build.

https://bugzilla.gnome.org/show_bug.cgi?id=797185
2018-09-24 14:45:56 +01:00
Nirbheek Chauhan
cea5e3fcdb meson: Maintain macOS ABI through dylib versioning
Requires Meson 0.48, but the feature will be ignored on older versions
so it's safe to add it without bumping the requirement.

Documentation:
https://github.com/mesonbuild/meson/blob/master/docs/markdown/Reference-manual.md#shared_library
2018-08-31 14:41:00 +05:30
Nicolas Dufresne
9c91282ba6 opencv: Updated to use new header path 2018-08-02 11:31:34 -04:00
Nicolas Dufresne
cabf875098 opencv: Bump requirement to 3.0.0+
And removes all the ifdef code to support the 2.X APIs.
2018-08-02 11:31:34 -04:00
Nirbheek Chauhan
b55dfb5313 Add feature options for almost all plugins
The only plugins remaining are those that haven't been ported to Meson
yet, and msdk. Also, the tests are still automagic.

https://bugzilla.gnome.org/show_bug.cgi?id=795107
2018-07-27 19:04:38 +05:30
Tim-Philipp Müller
456f60164c opencv: GST_EXPORT -> GST_OPENCV_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 12:57:56 +00:00
Tim-Philipp Müller
00bc9d7070 opencv: mark symbols explicitly for export with GST_EXPORT 2017-07-18 12:46:57 +01:00
Philippe Renon
4664fc0b27 opencv: add opencv image format documentation
https://bugzilla.gnome.org/show_bug.cgi?id=774576
2016-11-29 21:21:49 -05:00
Philippe Renon
f6021e0016 opencv: account for sparse/padded formats when converting caps to cv image type
https://bugzilla.gnome.org/show_bug.cgi?id=774576
2016-11-29 21:21:49 -05:00
Nicolas Dufresne
cfc420bf4d opencvvideofilter: Don't parse the caps twice
The GstVideoFilter already provide caps parsed into GstVideoInfo. Avoid
doing that twice by splitting the helper.

https://bugzilla.gnome.org/show_bug.cgi?id=775288
2016-11-29 21:21:49 -05:00
Nicolas Dufresne
ed3877655d opencvfilter: Properly port to GstVideoFilter
This is a subblass of VideoFilter but yet does not use any of it's
features. This also fixes issue in case the incoming images have custom
strides as the VideoMeta is no longer ignored.

https://bugzilla.gnome.org/show_bug.cgi?id=775288
2016-11-29 21:21:49 -05:00
Luis de Bethencourt
de99cf0de1 opencv: Enable in meson build
https://bugzilla.gnome.org/show_bug.cgi?id=774223
2016-11-26 17:55:23 +00:00
Philippe Renon
d130a19c89 opencv: forward declare opencv types
Forward declare opencv types to avoid exposing them in the API.

https://bugzilla.gnome.org/show_bug.cgi?id=774223
2016-11-21 17:37:46 +01:00
Philippe Renon
5594c7e53e opencv: move base opencv filter class and utilities to gst-libs
https://bugzilla.gnome.org/show_bug.cgi?id=774223
2016-11-14 18:25:57 +00:00