1 /* GStreamer Wayland video sink
3 * Copyright (C) 2011 Intel Corporation
4 * Copyright (C) 2011 Sreerenj Balachandran <sreerenj.balachandran@intel.com>
5 * Copyright (C) 2012 Wim Taymans <wim.taymans@gmail.com>
6 * Copyright (C) 2014 Collabora Ltd.
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Library General Public License for more details.
18 * You should have received a copy of the GNU Library General Public
19 * License along with this library; if not, write to the Free
20 * Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
21 * Boston, MA 02110-1301 USA.
25 * SECTION:element-waylandsink
27 * The waylandsink is creating its own window and render the decoded video frames to that.
28 * Setup the Wayland environment as described in
29 * <ulink url="http://wayland.freedesktop.org/building.html">Wayland</ulink> home page.
30 * The current implementaion is based on weston compositor.
33 * <title>Example pipelines</title>
35 * gst-launch -v videotestsrc ! waylandsink
36 * ]| test the video rendering in wayland
44 #include "gstwaylandsink.h"
45 #include "wlvideoformat.h"
46 #include "waylandpool.h"
48 #include <gst/wayland/wayland.h>
49 #include <gst/video/videooverlay.h>
65 GST_DEBUG_CATEGORY (gstwayland_debug);
66 #define GST_CAT_DEFAULT gstwayland_debug
68 static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
71 GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE
72 ("{ BGRx, BGRA, RGBx, xBGR, xRGB, RGBA, ABGR, ARGB, RGB, BGR, "
73 "RGB16, BGR16, YUY2, YVYU, UYVY, AYUV, NV12, NV21, NV16, "
74 "YUV9, YVU9, Y41B, I420, YV12, Y42B, v308 }"))
77 static void gst_wayland_sink_get_property (GObject * object,
78 guint prop_id, GValue * value, GParamSpec * pspec);
79 static void gst_wayland_sink_set_property (GObject * object,
80 guint prop_id, const GValue * value, GParamSpec * pspec);
81 static void gst_wayland_sink_finalize (GObject * object);
83 static GstStateChangeReturn gst_wayland_sink_change_state (GstElement * element,
84 GstStateChange transition);
85 static void gst_wayland_sink_set_context (GstElement * element,
86 GstContext * context);
88 static GstCaps *gst_wayland_sink_get_caps (GstBaseSink * bsink,
90 static gboolean gst_wayland_sink_set_caps (GstBaseSink * bsink, GstCaps * caps);
91 static gboolean gst_wayland_sink_preroll (GstBaseSink * bsink,
94 gst_wayland_sink_propose_allocation (GstBaseSink * bsink, GstQuery * query);
95 static gboolean gst_wayland_sink_render (GstBaseSink * bsink,
98 /* VideoOverlay interface */
99 static void gst_wayland_sink_videooverlay_init (GstVideoOverlayInterface *
101 static void gst_wayland_sink_set_window_handle (GstVideoOverlay * overlay,
103 static void gst_wayland_sink_set_render_rectangle (GstVideoOverlay * overlay,
104 gint x, gint y, gint w, gint h);
105 static void gst_wayland_sink_expose (GstVideoOverlay * overlay);
107 /* WaylandVideo interface */
108 static void gst_wayland_sink_waylandvideo_init (GstWaylandVideoInterface *
110 static void gst_wayland_sink_pause_rendering (GstWaylandVideo * video);
111 static void gst_wayland_sink_resume_rendering (GstWaylandVideo * video);
113 #define gst_wayland_sink_parent_class parent_class
114 G_DEFINE_TYPE_WITH_CODE (GstWaylandSink, gst_wayland_sink, GST_TYPE_VIDEO_SINK,
115 G_IMPLEMENT_INTERFACE (GST_TYPE_VIDEO_OVERLAY,
116 gst_wayland_sink_videooverlay_init)
117 G_IMPLEMENT_INTERFACE (GST_TYPE_WAYLAND_VIDEO,
118 gst_wayland_sink_waylandvideo_init));
121 gst_wayland_sink_class_init (GstWaylandSinkClass * klass)
123 GObjectClass *gobject_class;
124 GstElementClass *gstelement_class;
125 GstBaseSinkClass *gstbasesink_class;
127 gobject_class = (GObjectClass *) klass;
128 gstelement_class = (GstElementClass *) klass;
129 gstbasesink_class = (GstBaseSinkClass *) klass;
131 gobject_class->set_property = gst_wayland_sink_set_property;
132 gobject_class->get_property = gst_wayland_sink_get_property;
133 gobject_class->finalize = GST_DEBUG_FUNCPTR (gst_wayland_sink_finalize);
135 gst_element_class_add_pad_template (gstelement_class,
136 gst_static_pad_template_get (&sink_template));
138 gst_element_class_set_static_metadata (gstelement_class,
139 "wayland video sink", "Sink/Video",
140 "Output to wayland surface",
141 "Sreerenj Balachandran <sreerenj.balachandran@intel.com>, "
142 "George Kiagiadakis <george.kiagiadakis@collabora.com>");
144 gstelement_class->change_state =
145 GST_DEBUG_FUNCPTR (gst_wayland_sink_change_state);
146 gstelement_class->set_context =
147 GST_DEBUG_FUNCPTR (gst_wayland_sink_set_context);
149 gstbasesink_class->get_caps = GST_DEBUG_FUNCPTR (gst_wayland_sink_get_caps);
150 gstbasesink_class->set_caps = GST_DEBUG_FUNCPTR (gst_wayland_sink_set_caps);
151 gstbasesink_class->preroll = GST_DEBUG_FUNCPTR (gst_wayland_sink_preroll);
152 gstbasesink_class->propose_allocation =
153 GST_DEBUG_FUNCPTR (gst_wayland_sink_propose_allocation);
154 gstbasesink_class->render = GST_DEBUG_FUNCPTR (gst_wayland_sink_render);
156 g_object_class_install_property (gobject_class, PROP_DISPLAY,
157 g_param_spec_string ("display", "Wayland Display name", "Wayland "
158 "display name to connect to, if not supplied via the GstContext",
159 NULL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
163 gst_wayland_sink_init (GstWaylandSink * sink)
165 g_mutex_init (&sink->display_lock);
166 g_mutex_init (&sink->render_lock);
167 g_cond_init (&sink->render_cond);
171 gst_wayland_sink_get_property (GObject * object,
172 guint prop_id, GValue * value, GParamSpec * pspec)
174 GstWaylandSink *sink = GST_WAYLAND_SINK (object);
178 g_value_set_string (value, sink->display_name);
181 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
187 gst_wayland_sink_set_property (GObject * object,
188 guint prop_id, const GValue * value, GParamSpec * pspec)
190 GstWaylandSink *sink = GST_WAYLAND_SINK (object);
194 sink->display_name = g_value_dup_string (value);
197 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
203 gst_wayland_sink_finalize (GObject * object)
205 GstWaylandSink *sink = GST_WAYLAND_SINK (object);
207 GST_DEBUG_OBJECT (sink, "Finalizing the sink..");
209 if (sink->last_buffer)
210 gst_buffer_unref (sink->last_buffer);
212 /* see comment about this call in gst_wayland_sink_change_state() */
214 gst_wayland_compositor_release_all_buffers (GST_WAYLAND_BUFFER_POOL
217 g_object_unref (sink->display);
220 g_object_unref (sink->window);
222 gst_object_unref (sink->pool);
224 if (sink->display_name)
225 g_free (sink->display_name);
227 g_mutex_clear (&sink->display_lock);
228 g_mutex_clear (&sink->render_lock);
229 g_cond_clear (&sink->render_cond);
231 G_OBJECT_CLASS (parent_class)->finalize (object);
234 /* must be called with the display_lock */
236 gst_wayland_sink_set_display_from_context (GstWaylandSink * sink,
237 GstContext * context)
239 struct wl_display *display;
240 GError *error = NULL;
242 display = gst_wayland_display_handle_context_get_handle (context);
243 sink->display = gst_wl_display_new_existing (display, FALSE, &error);
246 GST_ELEMENT_WARNING (sink, RESOURCE, OPEN_READ_WRITE,
247 ("Could not set display handle"),
248 ("Failed to use the external wayland display: '%s'", error->message));
249 g_error_free (error);
254 gst_wayland_sink_find_display (GstWaylandSink * sink)
258 GstContext *context = NULL;
259 GError *error = NULL;
262 g_mutex_lock (&sink->display_lock);
264 if (!sink->display) {
265 /* first query upstream for the needed display handle */
266 query = gst_query_new_context (GST_WAYLAND_DISPLAY_HANDLE_CONTEXT_TYPE);
267 if (gst_pad_peer_query (GST_VIDEO_SINK_PAD (sink), query)) {
268 gst_query_parse_context (query, &context);
269 gst_wayland_sink_set_display_from_context (sink, context);
271 gst_query_unref (query);
273 if (G_LIKELY (!sink->display)) {
274 /* now ask the application to set the display handle */
275 msg = gst_message_new_need_context (GST_OBJECT_CAST (sink),
276 GST_WAYLAND_DISPLAY_HANDLE_CONTEXT_TYPE);
278 g_mutex_unlock (&sink->display_lock);
279 gst_element_post_message (GST_ELEMENT_CAST (sink), msg);
280 /* at this point we expect gst_wayland_sink_set_context
281 * to get called and fill sink->display */
282 g_mutex_lock (&sink->display_lock);
284 if (!sink->display) {
285 /* if the application didn't set a display, let's create it ourselves */
286 sink->display = gst_wl_display_new (sink->display_name, &error);
288 GST_ELEMENT_WARNING (sink, RESOURCE, OPEN_READ_WRITE,
289 ("Could not initialise Wayland output"),
290 ("Failed to create GstWlDisplay: '%s'", error->message));
291 g_error_free (error);
294 /* inform the world about the new display */
296 gst_wayland_display_handle_context_new (sink->display->display);
297 msg = gst_message_new_have_context (GST_OBJECT_CAST (sink), context);
298 gst_element_post_message (GST_ELEMENT_CAST (sink), msg);
304 g_mutex_unlock (&sink->display_lock);
309 static GstStateChangeReturn
310 gst_wayland_sink_change_state (GstElement * element, GstStateChange transition)
312 GstWaylandSink *sink = GST_WAYLAND_SINK (element);
313 GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
315 switch (transition) {
316 case GST_STATE_CHANGE_NULL_TO_READY:
317 if (!gst_wayland_sink_find_display (sink))
318 return GST_STATE_CHANGE_FAILURE;
324 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
325 if (ret == GST_STATE_CHANGE_FAILURE)
328 switch (transition) {
329 case GST_STATE_CHANGE_PAUSED_TO_READY:
330 if (sink->window && gst_wl_window_is_toplevel (sink->window)) {
331 gst_buffer_replace (&sink->last_buffer, NULL);
332 g_clear_object (&sink->window);
335 case GST_STATE_CHANGE_READY_TO_NULL:
336 g_mutex_lock (&sink->display_lock);
337 /* We don't need to keep the display around, unless we are embedded
338 * in another window as a subsurface, in which case we should continue
339 * to respond to expose() and therefore both the window and the display
341 if (sink->display && !sink->window) { /* -> the window was toplevel */
342 /* Force all buffers to return to the pool, regardless of
343 * whether the compositor has released them or not. We are
344 * going to kill the display, so we need to return all buffers
345 * to be destroyed before this happens.
346 * Note that this is done here instead of the pool destructor
347 * because the buffers hold a reference to the pool. Also,
348 * the buffers can only be unref'ed from the display's event loop
349 * and the pool holds a reference to the display. If we drop
350 * our references here, when the compositor releases the buffers,
351 * they will be unref'ed from the event loop thread, which will
352 * unref the pool and therefore the display, which will try to
353 * stop the thread from within itself and cause a deadlock.
356 gst_wayland_compositor_release_all_buffers (GST_WAYLAND_BUFFER_POOL
359 g_clear_object (&sink->display);
360 g_clear_object (&sink->pool);
362 g_mutex_unlock (&sink->display_lock);
372 gst_wayland_sink_set_context (GstElement * element, GstContext * context)
374 GstWaylandSink *sink = GST_WAYLAND_SINK (element);
376 if (gst_context_has_context_type (context,
377 GST_WAYLAND_DISPLAY_HANDLE_CONTEXT_TYPE)) {
378 g_mutex_lock (&sink->display_lock);
379 if (G_LIKELY (!sink->display))
380 gst_wayland_sink_set_display_from_context (sink, context);
382 GST_WARNING_OBJECT (element, "changing display handle is not supported");
383 g_mutex_unlock (&sink->display_lock);
386 if (GST_ELEMENT_CLASS (parent_class)->set_context)
387 GST_ELEMENT_CLASS (parent_class)->set_context (element, context);
391 gst_wayland_sink_get_caps (GstBaseSink * bsink, GstCaps * filter)
393 GstWaylandSink *sink;
396 sink = GST_WAYLAND_SINK (bsink);
398 caps = gst_pad_get_pad_template_caps (GST_VIDEO_SINK_PAD (sink));
400 g_mutex_lock (&sink->display_lock);
403 GValue list = G_VALUE_INIT;
404 GValue value = G_VALUE_INIT;
407 enum wl_shm_format fmt;
409 g_value_init (&list, GST_TYPE_LIST);
410 g_value_init (&value, G_TYPE_STRING);
412 formats = sink->display->formats;
413 for (i = 0; i < formats->len; i++) {
414 fmt = g_array_index (formats, uint32_t, i);
415 g_value_set_string (&value, gst_wayland_format_to_string (fmt));
416 gst_value_list_append_value (&list, &value);
419 caps = gst_caps_make_writable (caps);
420 gst_structure_set_value (gst_caps_get_structure (caps, 0), "format", &list);
422 GST_DEBUG_OBJECT (sink, "display caps: %" GST_PTR_FORMAT, caps);
425 g_mutex_unlock (&sink->display_lock);
428 GstCaps *intersection;
431 gst_caps_intersect_full (filter, caps, GST_CAPS_INTERSECT_FIRST);
432 gst_caps_unref (caps);
440 gst_wayland_sink_set_caps (GstBaseSink * bsink, GstCaps * caps)
442 GstWaylandSink *sink;
443 GstBufferPool *newpool;
445 enum wl_shm_format format;
448 GstStructure *structure;
449 static GstAllocationParams params = { 0, 0, 0, 15, };
451 sink = GST_WAYLAND_SINK (bsink);
453 GST_DEBUG_OBJECT (sink, "set caps %" GST_PTR_FORMAT, caps);
455 /* extract info from caps */
456 if (!gst_video_info_from_caps (&info, caps))
459 format = gst_video_format_to_wayland_format (GST_VIDEO_INFO_FORMAT (&info));
463 /* store the video size */
464 sink->video_width = info.width;
465 sink->video_height = info.height;
467 /* verify we support the requested format */
468 formats = sink->display->formats;
469 for (i = 0; i < formats->len; i++) {
470 if (g_array_index (formats, uint32_t, i) == format)
474 if (i >= formats->len)
475 goto unsupported_format;
477 /* create a new pool for the new configuration */
478 newpool = gst_wayland_buffer_pool_new (sink->display);
482 structure = gst_buffer_pool_get_config (newpool);
483 gst_buffer_pool_config_set_params (structure, caps, info.size, 2, 0);
484 gst_buffer_pool_config_set_allocator (structure, NULL, ¶ms);
485 if (!gst_buffer_pool_set_config (newpool, structure))
488 gst_object_replace ((GstObject **) & sink->pool, (GstObject *) newpool);
489 gst_object_unref (newpool);
495 GST_DEBUG_OBJECT (sink,
496 "Could not locate image format from caps %" GST_PTR_FORMAT, caps);
501 GST_DEBUG_OBJECT (sink, "Format %s is not available on the display",
502 gst_wayland_format_to_string (format));
507 GST_DEBUG_OBJECT (sink, "Failed to create new pool");
512 GST_DEBUG_OBJECT (bsink, "failed setting config");
518 gst_wayland_sink_propose_allocation (GstBaseSink * bsink, GstQuery * query)
520 GstWaylandSink *sink = GST_WAYLAND_SINK (bsink);
521 GstBufferPool *pool = NULL;
522 GstStructure *config;
527 gst_query_parse_allocation (query, &caps, &need_pool);
533 pool = gst_object_ref (sink->pool);
538 /* we had a pool, check caps */
539 config = gst_buffer_pool_get_config (pool);
540 gst_buffer_pool_config_get_params (config, &pcaps, &size, NULL, NULL);
542 if (!gst_caps_is_equal (caps, pcaps)) {
543 /* different caps, we can't use this pool */
544 gst_object_unref (pool);
547 gst_structure_free (config);
550 if (pool == NULL && need_pool) {
553 if (!gst_video_info_from_caps (&info, caps))
556 GST_DEBUG_OBJECT (sink, "create new pool");
557 pool = gst_wayland_buffer_pool_new (sink->display);
559 /* the normal size of a frame */
562 config = gst_buffer_pool_get_config (pool);
563 gst_buffer_pool_config_set_params (config, caps, size, 2, 0);
564 if (!gst_buffer_pool_set_config (pool, config))
568 gst_query_add_allocation_pool (query, pool, size, 2, 0);
569 gst_object_unref (pool);
577 GST_DEBUG_OBJECT (bsink, "no caps specified");
582 GST_DEBUG_OBJECT (bsink, "invalid caps specified");
587 GST_DEBUG_OBJECT (bsink, "failed setting config");
588 gst_object_unref (pool);
594 gst_wayland_sink_preroll (GstBaseSink * bsink, GstBuffer * buffer)
596 GST_DEBUG_OBJECT (bsink, "preroll buffer %p", buffer);
597 return gst_wayland_sink_render (bsink, buffer);
601 frame_redraw_callback (void *data, struct wl_callback *callback, uint32_t time)
603 GstWaylandSink *sink = data;
605 GST_LOG ("frame_redraw_cb");
607 g_atomic_int_set (&sink->redraw_pending, FALSE);
608 wl_callback_destroy (callback);
611 static const struct wl_callback_listener frame_callback_listener = {
612 frame_redraw_callback
615 /* must be called with the render lock */
617 render_last_buffer (GstWaylandSink * sink)
620 struct wl_surface *surface;
621 struct wl_callback *callback;
623 meta = gst_buffer_get_wl_meta (sink->last_buffer);
624 surface = gst_wl_window_get_wl_surface (sink->window);
626 g_atomic_int_set (&sink->redraw_pending, TRUE);
627 callback = wl_surface_frame (surface);
628 wl_callback_add_listener (callback, &frame_callback_listener, sink);
630 /* Here we essentially add a reference to the buffer. This represents
631 * the fact that the compositor is using the buffer and it should
632 * not return back to the pool and be reused until the compositor
633 * releases it. The release is handled internally in the pool */
634 gst_wayland_compositor_acquire_buffer (meta->pool, sink->last_buffer);
636 wl_surface_attach (surface, meta->wbuffer, 0, 0);
637 wl_surface_damage (surface, 0, 0, sink->window->surface_width,
638 sink->window->surface_height);
640 wl_surface_commit (surface);
641 wl_display_flush (sink->display->display);
645 gst_wayland_sink_render (GstBaseSink * bsink, GstBuffer * buffer)
647 GstWaylandSink *sink = GST_WAYLAND_SINK (bsink);
648 GstBuffer *to_render;
650 GstFlowReturn ret = GST_FLOW_OK;
652 /* ask for window handle. do that before locking the sink, because
653 * set_window_handle & friends will lock it in this context */
655 gst_video_overlay_prepare_window_handle (GST_VIDEO_OVERLAY (sink));
657 g_mutex_lock (&sink->render_lock);
659 GST_LOG_OBJECT (sink, "render buffer %p", buffer);
661 /* surface is resizing - drop buffers until finished */
662 if (sink->drawing_frozen)
665 /* drop buffers until we get a frame callback */
666 if (g_atomic_int_get (&sink->redraw_pending) == TRUE)
669 /* if we were not provided a window, create one ourselves */
671 sink->window = gst_wl_window_new_toplevel (sink->display, sink->video_width,
674 gst_wl_window_set_video_size (sink->window, sink->video_width,
676 if (sink->window->surface_width == 0 || sink->window->surface_height == 0)
680 meta = gst_buffer_get_wl_meta (buffer);
682 if (meta && meta->pool->display == sink->display) {
683 GST_LOG_OBJECT (sink, "buffer %p from our pool, writing directly", buffer);
687 GST_LOG_OBJECT (sink, "buffer %p not from our pool, copying", buffer);
692 if (!gst_buffer_pool_set_active (sink->pool, TRUE))
693 goto activate_failed;
695 ret = gst_buffer_pool_acquire_buffer (sink->pool, &to_render, NULL);
696 if (ret != GST_FLOW_OK)
699 gst_buffer_map (buffer, &src, GST_MAP_READ);
700 gst_buffer_fill (to_render, 0, src.data, src.size);
701 gst_buffer_unmap (buffer, &src);
704 gst_buffer_replace (&sink->last_buffer, to_render);
705 render_last_buffer (sink);
707 /* notify _resume_rendering() in case it's waiting */
708 sink->rendered = TRUE;
709 g_cond_broadcast (&sink->render_cond);
711 if (buffer != to_render)
712 gst_buffer_unref (to_render);
717 GST_ELEMENT_ERROR (sink, RESOURCE, WRITE,
718 ("Window has no size set"),
719 ("Make sure you set the size after calling set_window_handle"));
720 ret = GST_FLOW_ERROR;
725 GST_WARNING_OBJECT (sink, "could not create image");
730 GST_ELEMENT_ERROR (sink, RESOURCE, WRITE,
731 ("Internal error: can't allocate images"),
732 ("We don't have a bufferpool negotiated"));
733 ret = GST_FLOW_ERROR;
738 GST_ERROR_OBJECT (sink, "failed to activate bufferpool.");
739 ret = GST_FLOW_ERROR;
744 g_mutex_unlock (&sink->render_lock);
750 gst_wayland_sink_videooverlay_init (GstVideoOverlayInterface * iface)
752 iface->set_window_handle = gst_wayland_sink_set_window_handle;
753 iface->set_render_rectangle = gst_wayland_sink_set_render_rectangle;
754 iface->expose = gst_wayland_sink_expose;
758 gst_wayland_sink_set_window_handle (GstVideoOverlay * overlay, guintptr handle)
760 GstWaylandSink *sink = GST_WAYLAND_SINK (overlay);
761 struct wl_surface *surface = (struct wl_surface *) handle;
763 g_return_if_fail (sink != NULL);
765 g_mutex_lock (&sink->render_lock);
767 GST_DEBUG_OBJECT (sink, "Setting window handle %" GST_PTR_FORMAT,
770 g_clear_object (&sink->window);
773 if (G_LIKELY (gst_wayland_sink_find_display (sink))) {
774 /* we cannot use our own display with an external window handle */
775 if (G_UNLIKELY (sink->display->own_display)) {
776 GST_ELEMENT_ERROR (sink, RESOURCE, OPEN_READ_WRITE,
777 ("Application did not provide a wayland display handle"),
778 ("waylandsink cannot use an externally-supplied surface without "
779 "an externally-supplied display handle. Consider providing a "
780 "display handle from your application with GstContext"));
782 sink->window = gst_wl_window_new_in_surface (sink->display, surface);
785 GST_ERROR_OBJECT (sink, "Failed to find display handle, "
786 "ignoring window handle");
790 g_mutex_unlock (&sink->render_lock);
794 gst_wayland_sink_set_render_rectangle (GstVideoOverlay * overlay,
795 gint x, gint y, gint w, gint h)
797 GstWaylandSink *sink = GST_WAYLAND_SINK (overlay);
799 g_return_if_fail (sink != NULL);
801 g_mutex_lock (&sink->render_lock);
803 g_mutex_unlock (&sink->render_lock);
804 GST_WARNING_OBJECT (sink,
805 "set_render_rectangle called without window, ignoring");
809 GST_DEBUG_OBJECT (sink, "window geometry changed to (%d, %d) %d x %d",
811 gst_wl_window_set_render_rectangle (sink->window, x, y, w, h);
813 g_mutex_unlock (&sink->render_lock);
817 gst_wayland_sink_expose (GstVideoOverlay * overlay)
819 GstWaylandSink *sink = GST_WAYLAND_SINK (overlay);
821 g_return_if_fail (sink != NULL);
823 GST_DEBUG_OBJECT (sink, "expose");
825 g_mutex_lock (&sink->render_lock);
826 if (sink->last_buffer && g_atomic_int_get (&sink->redraw_pending) == FALSE) {
827 GST_DEBUG_OBJECT (sink, "redrawing last buffer");
828 render_last_buffer (sink);
830 g_mutex_unlock (&sink->render_lock);
834 gst_wayland_sink_waylandvideo_init (GstWaylandVideoInterface * iface)
836 iface->pause_rendering = gst_wayland_sink_pause_rendering;
837 iface->resume_rendering = gst_wayland_sink_resume_rendering;
841 gst_wayland_sink_pause_rendering (GstWaylandVideo * video)
843 GstWaylandSink *sink = GST_WAYLAND_SINK (video);
844 g_return_if_fail (sink != NULL);
846 g_mutex_lock (&sink->render_lock);
847 sink->drawing_frozen = TRUE;
848 g_mutex_unlock (&sink->render_lock);
852 gst_wayland_sink_resume_rendering (GstWaylandVideo * video)
854 GstWaylandSink *sink = GST_WAYLAND_SINK (video);
855 g_return_if_fail (sink != NULL);
857 GST_DEBUG_OBJECT (sink, "resuming rendering");
859 g_mutex_lock (&sink->render_lock);
860 sink->drawing_frozen = FALSE;
862 if (GST_STATE (sink) == GST_STATE_PLAYING) {
863 sink->rendered = FALSE;
864 while (sink->rendered == FALSE)
865 g_cond_wait (&sink->render_cond, &sink->render_lock);
866 GST_DEBUG_OBJECT (sink, "synchronized with render()");
867 } else if (sink->window && sink->last_buffer &&
868 g_atomic_int_get (&sink->redraw_pending) == FALSE) {
869 render_last_buffer (sink);
870 GST_DEBUG_OBJECT (sink, "last buffer redrawn");
873 g_mutex_unlock (&sink->render_lock);
877 plugin_init (GstPlugin * plugin)
879 GST_DEBUG_CATEGORY_INIT (gstwayland_debug, "waylandsink", 0,
880 " wayland video sink");
882 return gst_element_register (plugin, "waylandsink", GST_RANK_MARGINAL,
883 GST_TYPE_WAYLAND_SINK);
886 GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
889 "Wayland Video Sink", plugin_init, VERSION, "LGPL", GST_PACKAGE_NAME,