1 /* Copyright (C) <2018> Philippe Normand <philn@igalia.com>
2 * Copyright (C) <2018> Žan Doberšek <zdobersek@igalia.com>
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
21 * SECTION:element-wpesrc
24 * The wpesrc element is used to produce a video texture representing a web page
25 * rendered off-screen by WPE.
27 * Starting from WPEBackend-FDO 1.6.x, software rendering support is available. This
28 * features allows wpesrc to be used on machines without GPU, and/or for testing
29 * purpose. To enable it, set the `LIBGL_ALWAYS_SOFTWARE=true` environment
30 * variable and make sure `video/x-raw, format=BGRA` caps are negotiated by the
33 * As the webview loading is usually not instantaneous, the wpesrc element emits
34 * messages indicating the load progress, in percent. The value is an estimate
35 * based on the total number of bytes expected to be received for a document,
36 * including all its possible subresources and child documents. The application
37 * can handle these `element` messages synchronously for instance, in order to
38 * display a progress bar or other visual load indicator. The load percent value
39 * is stored in the message structure as a double value named
40 * `estimated-load-progress` and the structure name is `wpe-stats`.
42 * ## Example launch lines
45 * gst-launch-1.0 -v wpesrc location="https://gstreamer.freedesktop.org" ! queue ! glimagesink
47 * Shows the GStreamer website homepage
50 * LIBGL_ALWAYS_SOFTWARE=true gst-launch-1.0 -v wpesrc num-buffers=50 location="https://gstreamer.freedesktop.org" \
51 * videoconvert ! pngenc ! multifilesink location=/tmp/snapshot-%05d.png
53 * Saves the first 50 video frames generated for the GStreamer website as PNG files in /tmp.
56 * gst-play-1.0 --videosink gtkglsink wpe://https://gstreamer.freedesktop.org
58 * Shows the GStreamer website homepage as played with GstPlayer in a GTK+ window.
61 * gst-launch-1.0 glvideomixer name=m sink_1::zorder=0 ! glimagesink wpesrc location="file:///tmp/asset.html" draw-background=0 \
62 * ! m. videotestsrc ! queue ! glupload ! glcolorconvert ! m.
64 * Composite WPE with a video stream in a single OpenGL scene.
67 * gst-launch-1.0 glvideomixer name=m sink_1::zorder=0 sink_0::height=818 sink_0::width=1920 ! gtkglsink \
68 * wpesrc location="file:///tmp/asset.html" draw-background=0 ! m.
69 * uridecodebin uri="http://example.com/Sintel.2010.1080p.mkv" name=d d. ! queue ! glupload ! glcolorconvert ! m.
71 * Composite WPE with a video stream, sink_0 pad properties have to match the video dimensions.
78 * - Audio support (requires an AudioSession implementation in WebKit and a WPEBackend-fdo API for it)
79 * - DMABuf support (requires changes in WPEBackend-fdo to expose DMABuf planes and fds)
80 * - Custom EGLMemory allocator
81 * - Better navigation events handling (would require a new GstNavigation API)
88 #include "gstwpesrc.h"
89 #include <gst/gl/gl.h>
90 #include <gst/gl/egl/gstglmemoryegl.h>
91 #include <gst/gl/wayland/gstgldisplay_wayland.h>
92 #include <gst/video/video.h>
93 #include <xkbcommon/xkbcommon.h>
95 #include "WPEThreadedView.h"
97 GST_DEBUG_CATEGORY (wpe_src_debug);
98 #define GST_CAT_DEFAULT wpe_src_debug
100 #define DEFAULT_WIDTH 1920
101 #define DEFAULT_HEIGHT 1080
102 #define DEFAULT_FPS_N 30
103 #define DEFAULT_FPS_D 1
114 SIGNAL_CONFIGURE_WEB_VIEW,
118 static guint gst_wpe_src_signals[LAST_SIGNAL] = { 0 };
126 gboolean draw_background;
131 gint64 n_frames; /* total frames sent */
138 #define WPE_LOCK(o) g_mutex_lock(&(o)->lock)
139 #define WPE_UNLOCK(o) g_mutex_unlock(&(o)->lock)
141 static void gst_wpe_src_uri_handler_init (gpointer iface, gpointer data);
143 #define gst_wpe_src_parent_class parent_class
144 G_DEFINE_TYPE_WITH_CODE (GstWpeSrc, gst_wpe_src, GST_TYPE_GL_BASE_SRC,
145 G_IMPLEMENT_INTERFACE (GST_TYPE_URI_HANDLER, gst_wpe_src_uri_handler_init));
147 #if ENABLE_SHM_BUFFER_SUPPORT
148 #define WPE_RAW_CAPS "; video/x-raw, " \
149 "format = (string) BGRA, " \
150 "width = " GST_VIDEO_SIZE_RANGE ", " \
151 "height = " GST_VIDEO_SIZE_RANGE ", " \
152 "framerate = " GST_VIDEO_FPS_RANGE ", " \
153 "pixel-aspect-ratio = (fraction)1/1"
155 #define WPE_RAW_CAPS ""
158 #define WPE_BASIC_CAPS "video/x-raw(memory:GLMemory), " \
159 "format = (string) RGBA, " \
160 "width = " GST_VIDEO_SIZE_RANGE ", " \
161 "height = " GST_VIDEO_SIZE_RANGE ", " \
162 "framerate = " GST_VIDEO_FPS_RANGE ", " \
163 "pixel-aspect-ratio = (fraction)1/1, texture-target = (string)2D"
165 #define WPE_SRC_CAPS WPE_BASIC_CAPS WPE_RAW_CAPS
166 #define WPE_SRC_DOC_CAPS WPE_BASIC_CAPS "; video/x-raw, format = (string) BGRA"
168 static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
171 GST_STATIC_CAPS (WPE_SRC_CAPS));
174 gst_wpe_src_create (GstBaseSrc * bsrc, guint64 offset, guint length, GstBuffer ** buf)
176 GstGLBaseSrc *gl_src = GST_GL_BASE_SRC (bsrc);
177 GstWpeSrc *src = GST_WPE_SRC (bsrc);
178 GstFlowReturn ret = GST_FLOW_ERROR;
179 GstBuffer *locked_buffer;
180 GstClockTime next_time;
181 gint64 ts_offset = 0;
184 if (src->gl_enabled) {
186 return GST_CALL_PARENT_WITH_DEFAULT (GST_BASE_SRC_CLASS, create, (bsrc, offset, length, buf), ret);
189 locked_buffer = src->view->buffer ();
190 if (locked_buffer == NULL) {
192 GST_ELEMENT_ERROR (src, RESOURCE, FAILED,
193 ("WPE View did not render a buffer"), (NULL));
196 *buf = gst_buffer_copy_deep (locked_buffer);
198 g_object_get(gl_src, "timestamp-offset", &ts_offset, NULL);
200 /* The following code mimics the behaviour of GLBaseSrc::fill */
201 GST_BUFFER_TIMESTAMP (*buf) = ts_offset + gl_src->running_time;
202 GST_BUFFER_OFFSET (*buf) = src->n_frames;
204 GST_BUFFER_OFFSET_END (*buf) = src->n_frames;
205 if (gl_src->out_info.fps_n) {
206 next_time = gst_util_uint64_scale_int (src->n_frames * GST_SECOND,
207 gl_src->out_info.fps_d, gl_src->out_info.fps_n);
208 GST_BUFFER_DURATION (*buf) = next_time - gl_src->running_time;
210 next_time = ts_offset;
211 GST_BUFFER_DURATION (*buf) = GST_CLOCK_TIME_NONE;
214 GST_LOG_OBJECT (src, "Created buffer from SHM %" GST_PTR_FORMAT, *buf);
216 gl_src->running_time = next_time;
224 gst_wpe_src_fill_memory (GstGLBaseSrc * bsrc, GstGLMemory * memory)
226 GstWpeSrc *src = GST_WPE_SRC (bsrc);
227 const GstGLFuncs *gl;
229 GstEGLImage *locked_image;
231 if (!gst_gl_context_check_feature (GST_GL_CONTEXT (bsrc->context),
232 "EGL_KHR_image_base")) {
233 GST_ERROR_OBJECT (src, "EGL_KHR_image_base is not supported");
239 gl = bsrc->context->gl_vtable;
240 tex_id = gst_gl_memory_get_texture_id (memory);
241 locked_image = src->view->image ();
248 gl->ActiveTexture (GL_TEXTURE0 + memory->plane);
249 gl->BindTexture (GL_TEXTURE_2D, tex_id);
250 gl->EGLImageTargetTexture2D (GL_TEXTURE_2D,
251 gst_egl_image_get_image (locked_image));
258 gst_wpe_src_start (GstWpeSrc * src)
260 GstGLContext *context = NULL;
261 GstGLDisplay *display = NULL;
262 GstGLBaseSrc *base_src = GST_GL_BASE_SRC (src);
263 gboolean created_view = FALSE;
265 GST_INFO_OBJECT (src, "Starting up");
268 if (src->gl_enabled) {
269 context = base_src->context;
270 display = base_src->display;
273 GST_DEBUG_OBJECT (src, "Will %sfill GLMemories", src->gl_enabled ? "" : "NOT ");
275 auto & thread = WPEContextThread::singleton ();
278 src->view = thread.createWPEView (src, context, display,
279 GST_VIDEO_INFO_WIDTH (&base_src->out_info),
280 GST_VIDEO_INFO_HEIGHT (&base_src->out_info));
282 GST_DEBUG_OBJECT (src, "created view %p", src->view);
287 GST_ELEMENT_ERROR (src, RESOURCE, FAILED,
288 ("WPEBackend-FDO EGL display initialisation failed"), (NULL));
292 if (src->bytes != NULL) {
293 src->view->loadData (src->bytes);
294 g_bytes_unref (src->bytes);
306 gst_wpe_src_decide_allocation (GstBaseSrc * base_src, GstQuery * query)
308 GstGLBaseSrc *gl_src = GST_GL_BASE_SRC (base_src);
309 GstWpeSrc *src = GST_WPE_SRC (base_src);
310 GstCapsFeatures *caps_features;
313 caps_features = gst_caps_get_features (gl_src->out_caps, 0);
314 if (caps_features != NULL && gst_caps_features_contains (caps_features, GST_CAPS_FEATURE_MEMORY_GL_MEMORY)) {
315 src->gl_enabled = TRUE;
317 src->gl_enabled = FALSE;
320 if (src->gl_enabled) {
322 return GST_CALL_PARENT_WITH_DEFAULT(GST_BASE_SRC_CLASS, decide_allocation, (base_src, query), FALSE);
325 return gst_wpe_src_start (src);
329 gst_wpe_src_gl_start (GstGLBaseSrc * base_src)
331 GstWpeSrc *src = GST_WPE_SRC (base_src);
332 return gst_wpe_src_start (src);
336 gst_wpe_src_stop_unlocked (GstWpeSrc * src)
339 GST_DEBUG_OBJECT (src, "deleting view %p", src->view);
346 gst_wpe_src_gl_stop (GstGLBaseSrc * base_src)
348 GstWpeSrc *src = GST_WPE_SRC (base_src);
351 gst_wpe_src_stop_unlocked (src);
356 gst_wpe_src_stop (GstBaseSrc * base_src)
358 GstWpeSrc *src = GST_WPE_SRC (base_src);
360 /* we can call this always, GstGLBaseSrc is smart enough to not crash if
361 * gst_gl_base_src_gl_start() has not been called from chaining up
362 * gst_wpe_src_decide_allocation() */
363 if (!GST_CALL_PARENT_WITH_DEFAULT(GST_BASE_SRC_CLASS, stop, (base_src), FALSE))
368 /* if gl-enabled, gst_wpe_src_stop_unlocked() would have already been called
369 * inside gst_wpe_src_gl_stop() from the base class stopping the OpenGL
371 if (!src->gl_enabled)
372 gst_wpe_src_stop_unlocked (src);
379 gst_wpe_src_fixate (GstBaseSrc * base_src, GstCaps * caps)
381 GstWpeSrc *src = GST_WPE_SRC (base_src);
382 GstStructure *structure;
385 caps = gst_caps_make_writable (caps);
386 structure = gst_caps_get_structure (caps, 0);
388 gst_structure_fixate_field_nearest_int (structure, "width", DEFAULT_WIDTH);
389 gst_structure_fixate_field_nearest_int (structure, "height", DEFAULT_HEIGHT);
391 if (gst_structure_has_field (structure, "framerate"))
392 gst_structure_fixate_field_nearest_fraction (structure, "framerate",
393 DEFAULT_FPS_N, DEFAULT_FPS_D);
395 gst_structure_set (structure, "framerate", GST_TYPE_FRACTION, DEFAULT_FPS_N,
396 DEFAULT_FPS_D, NULL);
398 caps = GST_BASE_SRC_CLASS (parent_class)->fixate (base_src, caps);
399 GST_INFO_OBJECT (base_src, "Fixated caps to %" GST_PTR_FORMAT, caps);
402 gst_structure_get (structure, "width", G_TYPE_INT, &width, "height", G_TYPE_INT, &height, NULL);
403 src->view->resize (width, height);
409 gst_wpe_src_configure_web_view (GstWpeSrc * src, WebKitWebView * webview)
411 GValue args[2] = { {0}, {0} };
413 g_value_init (&args[0], GST_TYPE_ELEMENT);
414 g_value_set_object (&args[0], src);
415 g_value_init (&args[1], G_TYPE_OBJECT);
416 g_value_set_object (&args[1], webview);
418 g_signal_emitv (args, gst_wpe_src_signals[SIGNAL_CONFIGURE_WEB_VIEW], 0,
421 g_value_unset (&args[0]);
422 g_value_unset (&args[1]);
426 gst_wpe_src_load_bytes (GstWpeSrc * src, GBytes * bytes)
428 if (src->view && GST_STATE (GST_ELEMENT_CAST (src)) > GST_STATE_NULL) {
429 src->view->loadData (bytes);
432 g_bytes_unref (src->bytes);
433 src->bytes = g_bytes_ref (bytes);
438 gst_wpe_src_set_location (GstWpeSrc * src, const gchar * location,
441 g_free (src->location);
442 src->location = g_strdup (location);
444 src->view->loadUri (src->location);
450 gst_wpe_src_set_draw_background (GstWpeSrc * src, gboolean draw_background)
453 src->view->setDrawBackground (draw_background);
454 src->draw_background = draw_background;
458 gst_wpe_src_set_property (GObject * object, guint prop_id, const GValue * value,
461 GstWpeSrc *src = GST_WPE_SRC (object);
466 const gchar *location;
468 location = g_value_get_string (value);
469 if (location == NULL) {
470 GST_WARNING_OBJECT (src, "location property cannot be NULL");
474 if (!gst_wpe_src_set_location (src, location, NULL)) {
475 GST_WARNING_OBJECT (src, "badly formatted location");
480 case PROP_DRAW_BACKGROUND:
481 gst_wpe_src_set_draw_background (src, g_value_get_boolean (value));
489 gst_wpe_src_get_property (GObject * object, guint prop_id, GValue * value,
492 GstWpeSrc *src = GST_WPE_SRC (object);
496 g_value_set_string (value, src->location);
498 case PROP_DRAW_BACKGROUND:
499 g_value_set_boolean (value, src->draw_background);
502 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
508 gst_wpe_src_event (GstPad * pad, GstObject * parent, GstEvent * event)
510 gboolean ret = FALSE;
511 GstWpeSrc *src = GST_WPE_SRC (parent);
513 if (GST_EVENT_TYPE (event) == GST_EVENT_NAVIGATION) {
516 gdouble x, y, delta_x, delta_y;
518 GST_DEBUG_OBJECT (src, "Processing event %" GST_PTR_FORMAT, event);
522 switch (gst_navigation_event_get_type (event)) {
523 case GST_NAVIGATION_EVENT_KEY_PRESS:
524 case GST_NAVIGATION_EVENT_KEY_RELEASE:
525 if (gst_navigation_event_parse_key_event (event, &key)) {
526 /* FIXME: This is wrong... The GstNavigation API should pass
527 hardware-level information, not high-level keysym strings */
529 (uint32_t) xkb_keysym_from_name (key, XKB_KEYSYM_NO_FLAGS);
530 struct wpe_input_keyboard_event wpe_event;
531 wpe_event.key_code = keysym;
533 gst_navigation_event_get_type (event) ==
534 GST_NAVIGATION_EVENT_KEY_PRESS;
535 src->view->dispatchKeyboardEvent (wpe_event);
539 case GST_NAVIGATION_EVENT_MOUSE_BUTTON_PRESS:
540 case GST_NAVIGATION_EVENT_MOUSE_BUTTON_RELEASE:
541 if (gst_navigation_event_parse_mouse_button_event (event, &button, &x,
543 struct wpe_input_pointer_event wpe_event;
544 wpe_event.time = GST_TIME_AS_MSECONDS (GST_EVENT_TIMESTAMP (event));
545 wpe_event.type = wpe_input_pointer_event_type_button;
546 wpe_event.x = (int) x;
547 wpe_event.y = (int) y;
549 wpe_event.modifiers = wpe_input_pointer_modifier_button1;
550 } else if (button == 2) {
551 wpe_event.modifiers = wpe_input_pointer_modifier_button2;
552 } else if (button == 3) {
553 wpe_event.modifiers = wpe_input_pointer_modifier_button3;
554 } else if (button == 4) {
555 wpe_event.modifiers = wpe_input_pointer_modifier_button4;
556 } else if (button == 5) {
557 wpe_event.modifiers = wpe_input_pointer_modifier_button5;
559 wpe_event.button = button;
561 gst_navigation_event_get_type (event) ==
562 GST_NAVIGATION_EVENT_MOUSE_BUTTON_PRESS;
563 src->view->dispatchPointerEvent (wpe_event);
567 case GST_NAVIGATION_EVENT_MOUSE_MOVE:
568 if (gst_navigation_event_parse_mouse_move_event (event, &x, &y)) {
569 struct wpe_input_pointer_event wpe_event;
570 wpe_event.time = GST_TIME_AS_MSECONDS (GST_EVENT_TIMESTAMP (event));
571 wpe_event.type = wpe_input_pointer_event_type_motion;
572 wpe_event.x = (int) x;
573 wpe_event.y = (int) y;
574 src->view->dispatchPointerEvent (wpe_event);
578 case GST_NAVIGATION_EVENT_MOUSE_SCROLL:
579 if (gst_navigation_event_parse_mouse_scroll_event (event, &x, &y,
580 &delta_x, &delta_y)) {
581 #if WPE_CHECK_VERSION(1, 6, 0)
582 struct wpe_input_axis_2d_event wpe_event;
584 wpe_event.x_axis = delta_x;
586 wpe_event.y_axis = delta_y;
588 wpe_event.base.time =
589 GST_TIME_AS_MSECONDS (GST_EVENT_TIMESTAMP (event));
590 wpe_event.base.type =
591 static_cast < wpe_input_axis_event_type >
592 (wpe_input_axis_event_type_mask_2d |
593 wpe_input_axis_event_type_motion_smooth);
594 wpe_event.base.x = (int) x;
595 wpe_event.base.y = (int) y;
596 src->view->dispatchAxisEvent (wpe_event.base);
598 struct wpe_input_axis_event wpe_event;
601 wpe_event.value = delta_x;
604 wpe_event.value = delta_y;
606 wpe_event.time = GST_TIME_AS_MSECONDS (GST_EVENT_TIMESTAMP (event));
607 wpe_event.type = wpe_input_axis_event_type_motion;
608 wpe_event.x = (int) x;
609 wpe_event.y = (int) y;
610 src->view->dispatchAxisEvent (wpe_event);
618 /* FIXME: No touch events handling support in GstNavigation */
622 ret = gst_pad_event_default (pad, parent, event);
624 gst_event_unref (event);
630 gst_wpe_src_init (GstWpeSrc * src)
632 GstPad *pad = gst_element_get_static_pad (GST_ELEMENT_CAST (src), "src");
634 gst_pad_set_event_function (pad, gst_wpe_src_event);
635 gst_object_unref (pad);
637 src->draw_background = TRUE;
639 gst_base_src_set_live (GST_BASE_SRC_CAST (src), TRUE);
641 g_mutex_init (&src->lock);
645 gst_wpe_src_finalize (GObject * object)
647 GstWpeSrc *src = GST_WPE_SRC (object);
649 g_mutex_clear (&src->lock);
651 G_OBJECT_CLASS (parent_class)->finalize (object);
655 gst_wpe_src_uri_get_type (GType)
660 static const gchar *const *
661 gst_wpe_src_get_protocols (GType)
663 static const char *protocols[] = { "wpe", NULL };
668 gst_wpe_src_get_uri (GstURIHandler * handler)
670 GstWpeSrc *src = GST_WPE_SRC (handler);
671 return g_strdup_printf ("wpe://%s", src->location);
675 gst_wpe_src_set_uri (GstURIHandler * handler, const gchar * uri,
678 GstWpeSrc *src = GST_WPE_SRC (handler);
680 return gst_wpe_src_set_location (src, uri + 6, error);
684 gst_wpe_src_uri_handler_init (gpointer iface_ptr, gpointer data)
686 GstURIHandlerInterface *iface = (GstURIHandlerInterface *) iface_ptr;
688 iface->get_type = gst_wpe_src_uri_get_type;
689 iface->get_protocols = gst_wpe_src_get_protocols;
690 iface->get_uri = gst_wpe_src_get_uri;
691 iface->set_uri = gst_wpe_src_set_uri;
695 gst_wpe_src_class_init (GstWpeSrcClass * klass)
697 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
698 GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass);
699 GstGLBaseSrcClass *gl_base_src_class = GST_GL_BASE_SRC_CLASS (klass);
700 GstBaseSrcClass *base_src_class = GST_BASE_SRC_CLASS (klass);
701 GstPadTemplate *tmpl;
704 gobject_class->set_property = gst_wpe_src_set_property;
705 gobject_class->get_property = gst_wpe_src_get_property;
706 gobject_class->finalize = gst_wpe_src_finalize;
708 g_object_class_install_property (gobject_class, PROP_LOCATION,
709 g_param_spec_string ("location", "location",
710 "The URL to display",
711 "", (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
712 g_object_class_install_property (gobject_class, PROP_DRAW_BACKGROUND,
713 g_param_spec_boolean ("draw-background", "Draws the background",
714 "Whether to draw the WebView background", TRUE,
715 (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
717 gst_element_class_set_static_metadata (gstelement_class,
718 "WPE source", "Source/Video",
719 "Creates a video stream from a WPE browser",
720 "Philippe Normand <philn@igalia.com>, Žan Doberšek <zdobersek@igalia.com>");
722 tmpl = gst_static_pad_template_get (&src_factory);
723 gst_element_class_add_pad_template (gstelement_class, tmpl);
725 base_src_class->fixate = GST_DEBUG_FUNCPTR (gst_wpe_src_fixate);
726 base_src_class->create = GST_DEBUG_FUNCPTR (gst_wpe_src_create);
727 base_src_class->decide_allocation = GST_DEBUG_FUNCPTR (gst_wpe_src_decide_allocation);
728 base_src_class->stop = GST_DEBUG_FUNCPTR (gst_wpe_src_stop);
730 gl_base_src_class->supported_gl_api =
731 static_cast < GstGLAPI >
732 (GST_GL_API_OPENGL | GST_GL_API_OPENGL3 | GST_GL_API_GLES2);
733 gl_base_src_class->gl_start = GST_DEBUG_FUNCPTR (gst_wpe_src_gl_start);
734 gl_base_src_class->gl_stop = GST_DEBUG_FUNCPTR (gst_wpe_src_gl_stop);
735 gl_base_src_class->fill_gl_memory =
736 GST_DEBUG_FUNCPTR (gst_wpe_src_fill_memory);
738 doc_caps = gst_caps_from_string (WPE_SRC_DOC_CAPS);
739 gst_pad_template_set_documentation_caps (tmpl, doc_caps);
740 gst_clear_caps (&doc_caps);
743 * GstWpeSrc::configure-web-view:
744 * @src: the object which received the signal
745 * @webview: the webView
747 * Allow application to configure the webView settings.
749 gst_wpe_src_signals[SIGNAL_CONFIGURE_WEB_VIEW] =
750 g_signal_new ("configure-web-view", G_TYPE_FROM_CLASS (klass),
751 G_SIGNAL_RUN_LAST, 0, NULL, NULL, NULL, G_TYPE_NONE, 1, G_TYPE_OBJECT);
754 * GstWpeSrc::load-bytes:
755 * @src: the object which received the signal
756 * @bytes: the GBytes data to load
758 * Load the specified bytes into the internal webView.
760 gst_wpe_src_signals[SIGNAL_LOAD_BYTES] =
761 g_signal_new_class_handler ("load-bytes", G_TYPE_FROM_CLASS (klass),
762 static_cast < GSignalFlags > (G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION),
763 G_CALLBACK (gst_wpe_src_load_bytes), NULL, NULL, NULL,
764 G_TYPE_NONE, 1, G_TYPE_BYTES);
768 plugin_init (GstPlugin * plugin)
770 GST_DEBUG_CATEGORY_INIT (wpe_src_debug, "wpesrc", 0, "WPE Source");
772 return gst_element_register (plugin, "wpesrc", GST_RANK_NONE,
776 GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, GST_VERSION_MINOR,
777 wpe, "WPE src plugin", plugin_init, VERSION, GST_LICENSE, PACKAGE,