Commit graph

21 commits

Author SHA1 Message Date
Matthew Waters
94fea694bc wpesrc: replace object lock usage with a new lock
Using the object lock is problematic for anything that can dispatch to
another thread which is what createWPEView() does inside
gst_wpe_src_start().  Using the object lock there can cause a deadlock.

One example of such a deadlock is when createWPEView is called, but
another (or the same) wpesrc is on the WPEContextThread and e.g. posts a
bus message.  This message propagations takes and releases the object
lock of numerous elements in quick succession for determining various
information about the elements in the bin.  If the object lock is
already held, then the message propagation will block and stall bin
processing (state changes, other messages) and wpe servicing any events.

Fixes https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/issues/1490

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1934>
2021-01-12 08:35:10 +00:00
Philippe Normand
3bcb876c29 wpe: Emit load-progress messages
The estimated-load-progress value can be used on application side to display a
progress bar for instance.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1710>
2020-12-09 17:31:51 +00:00
Philippe Normand
37b7809d18 wpe: Convert launch lines to markdown and move since tag
Seems like the examples don't appear in the generated docs because the Since tag
was badly positioned in the doc blurb.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1706>
2020-10-18 15:17:25 +00:00
Matthew Waters
2f29a4cde6 wpesrc: add some debug logging around WPEView creation/destruction
Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1663>
2020-10-13 08:48:05 +00:00
Matthew Waters
da18a8d93d wpesrc: fix a memory leak of the bytes
free the previous GBytes if load-bytes is called multiple times
before view creation.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1663>
2020-10-13 08:48:05 +00:00
Matthew Waters
356fee4dd6 wpesrc: only create webview if not already created
e.g. _decide_allocation() can be called multiple times throughout the
element's lifetime and we only want to create the view once rather than
overwriting.

Fixes a leak of the WPEView under certain circumstances.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1663>
2020-10-13 08:48:05 +00:00
Matthew Waters
b003387526 wpesrc: fix some caps leaks using the non-GL output
Always chain up to the parent _stop() implementation as it unrefs some
caps (among other things).

Fixes: https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/issues/1409
Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1618>
2020-09-30 12:10:44 +00:00
Philippe Normand
2e8927ce93 wpe: Plug event leak
Handled events don't go through the default pad event handler, so they need to
be unreffed in this case.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1568>
2020-09-21 16:39:57 +00:00
Jan Schmidt
6fc7455881 wpesrc: Don't crash if WPE doesn't generate a buffer.
On creating a 2nd wpesrc in a new pipeline in an app that already
has a runnig wpesrc, WPE sometimes doesn't return a buffer on request,
leading to a crash. This commit fixes the crash, but not the underlying
failure - a 2nd wpesrc can still error out instead.

Partially fixes https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/issues/1386

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1568>
2020-09-21 16:39:57 +00:00
Philippe Normand
2caa3e0230 wpe: skip glbasesrc decide_allocation when non-GL caps are negotiated
Checking for GL caps features in gl_start() was done too late in case the parent
class fails to setup a working GL context. The element now determines if GL
support should be enabled during the decide-allocation query handling.

Additionally, when no GL context was found, we need to handle the element
cleanup because in that situation glbasesrc won't call gl_stop.

Fixes https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/issues/1376

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1532>
2020-08-24 20:59:50 +00:00
Philippe Normand
314a8c023f wpe: WebView and WebContext handling fixes
The WPEThreaded view is now split in 2 classes:
- WPEContextThread handles the persistent WebKit thread, where all WebKit API
calls should be handled.
- WPEView: is created from the WPEContextThread. It handles the WebView and
maintains the public interface on which wpesrc relies. This is the facade for
the WebView, basically. It takes care of dispatching API calls into the context
thread.

With these fixes it is now possible to create (and reuse) mutlple wpesrc
elements during the application lifetime.

Fixes #1372

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1484>
2020-08-14 09:41:56 +00:00
Mathieu Duponchelle
480ede1aa7 wpesrc: timestamp buffers when working with SHM buffers
GLBaseSrc::fill() will take care of that when dealing with
images, but as we don't chain up when dealing with SHM buffers
this needs to be done in order for GLBaseSrc::get_times() to
work appropriately.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1476>
2020-07-30 08:09:47 +00:00
Philippe Normand
db0ab58e14 wpe: Set documentation caps
As the caps template can vary depending on the WPEBackend-FDO version
found at build time, set a fixed template for the generate documentation.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1392>
2020-07-01 20:31:42 +00:00
Philippe Normand
49560b4ba8 wpe: Mouse scroll events support 2020-03-23 13:08:46 +00:00
Philippe Normand
9ac798ae5e wpe: Add software rendering support support
Starting from WPEBackend-FDO 1.6.x, software rendering support is available.
This features allows wpesrc to be used on machines without GPU, and/or for
testing purpose. To enable it, set the `LIBGL_ALWAYS_SOFTWARE=true` environment
variable and make sure `video/x-raw, format=BGRA` caps are negotiated by the
wpesrc element.
2020-02-11 16:47:53 +00:00
Niels De Graef
d8f61515d8 Don't pass default GLib marshallers for signals
By passing NULL to `g_signal_new` instead of a marshaller, GLib will
actually internally optimize the signal (if the marshaller is available
in GLib itself) by also setting the valist marshaller. This makes the
signal emission a bit more performant than the regular marshalling,
which still needs to box into `GValue` and call libffi in case of a
generic marshaller.

Note that for custom marshallers, one would use
`g_signal_set_va_marshaller()` with the valist marshaller instead.
2019-11-06 14:27:46 +00:00
Aaron Boxer
6d3429af34 documentation: fixed a heap o' typos 2019-11-05 09:11:25 -05:00
Philippe Normand
a40476914d wpesrc: Implement load-bytes action signal 2019-10-17 08:15:44 +00:00
Philippe Normand
d7778e6a7c wpe: Rewrite wpesrc as a glbasesrc subclass
And since it no longer allocates memories itself, this fixes issues with
fakevideosink. A lot of code previously copied from gltestsrc is no longer
needed thanks to the glbasesrc super-class.

Fixes https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/issues/1046
2019-10-17 08:15:44 +00:00
Philippe Normand
5105bc8041 wpe: Fix build with -Werror enabled
Including gl.h from WPEThreadedView.h leads to GST_LEVEL_DEFAULT detected as
redefined. The proposed fix is to include config.h from the CPP implementation
file and disable gl.h inclusion in the header, by using forward declarations.
2019-06-05 12:47:16 +01:00
Philippe Normand
5b8935bc77 wpe: Add a source element acting as a Web Browser based on WebKit WPE
The wpe element is used to produce a video texture representing a web page
rendered off-screen by WPE. This element can be used to overlay HTML on top of
another video stream for instance.
2018-12-06 12:38:52 +00:00