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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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352 lines
11 KiB
C
352 lines
11 KiB
C
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/* GStreamer
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*
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* Copyright (C) 2014-2015 Sebastian Dröge <sebastian@centricular.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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/**
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* SECTION:gstplay-videooverlayvideorenderer
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* @title: GstPlayVideoOverlayVideoRenderer
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* @short_description: Play Video Overlay Video Renderer
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "gstplay-video-overlay-video-renderer.h"
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#include "gstplay.h"
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#include <gst/video/video.h>
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struct _GstPlayVideoOverlayVideoRenderer
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{
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GObject parent;
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GstVideoOverlay *video_overlay;
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gpointer window_handle;
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gint x, y, width, height;
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GstElement *video_sink; /* configured video sink, or NULL */
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};
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struct _GstPlayVideoOverlayVideoRendererClass
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{
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GObjectClass parent_class;
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};
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static void
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gst_play_video_overlay_video_renderer_interface_init
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(GstPlayVideoRendererInterface * iface);
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enum
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{
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VIDEO_OVERLAY_VIDEO_RENDERER_PROP_0,
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VIDEO_OVERLAY_VIDEO_RENDERER_PROP_WINDOW_HANDLE,
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VIDEO_OVERLAY_VIDEO_RENDERER_PROP_VIDEO_SINK,
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VIDEO_OVERLAY_VIDEO_RENDERER_PROP_LAST
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};
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G_DEFINE_TYPE_WITH_CODE (GstPlayVideoOverlayVideoRenderer,
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gst_play_video_overlay_video_renderer, G_TYPE_OBJECT,
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G_IMPLEMENT_INTERFACE (GST_TYPE_PLAY_VIDEO_RENDERER,
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gst_play_video_overlay_video_renderer_interface_init));
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static GParamSpec
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* video_overlay_video_renderer_param_specs
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[VIDEO_OVERLAY_VIDEO_RENDERER_PROP_LAST] = { NULL, };
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static void
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gst_play_video_overlay_video_renderer_set_property (GObject * object,
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guint prop_id, const GValue * value, GParamSpec * pspec)
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{
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GstPlayVideoOverlayVideoRenderer *self =
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GST_PLAY_VIDEO_OVERLAY_VIDEO_RENDERER (object);
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switch (prop_id) {
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case VIDEO_OVERLAY_VIDEO_RENDERER_PROP_WINDOW_HANDLE:
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self->window_handle = g_value_get_pointer (value);
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if (self->video_overlay)
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gst_video_overlay_set_window_handle (self->video_overlay,
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(guintptr) self->window_handle);
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break;
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case VIDEO_OVERLAY_VIDEO_RENDERER_PROP_VIDEO_SINK:
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self->video_sink = gst_object_ref_sink (g_value_get_object (value));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_play_video_overlay_video_renderer_get_property (GObject * object,
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guint prop_id, GValue * value, GParamSpec * pspec)
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{
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GstPlayVideoOverlayVideoRenderer *self =
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GST_PLAY_VIDEO_OVERLAY_VIDEO_RENDERER (object);
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switch (prop_id) {
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case VIDEO_OVERLAY_VIDEO_RENDERER_PROP_WINDOW_HANDLE:
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g_value_set_pointer (value, self->window_handle);
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break;
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case VIDEO_OVERLAY_VIDEO_RENDERER_PROP_VIDEO_SINK:
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g_value_set_object (value, self->video_sink);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_play_video_overlay_video_renderer_finalize (GObject * object)
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{
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GstPlayVideoOverlayVideoRenderer *self =
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GST_PLAY_VIDEO_OVERLAY_VIDEO_RENDERER (object);
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if (self->video_overlay)
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gst_object_unref (self->video_overlay);
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if (self->video_sink)
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gst_object_unref (self->video_sink);
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G_OBJECT_CLASS
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(gst_play_video_overlay_video_renderer_parent_class)->finalize (object);
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}
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static void
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gst_play_video_overlay_video_renderer_class_init
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(GstPlayVideoOverlayVideoRendererClass * klass)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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gobject_class->set_property =
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gst_play_video_overlay_video_renderer_set_property;
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gobject_class->get_property =
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gst_play_video_overlay_video_renderer_get_property;
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gobject_class->finalize = gst_play_video_overlay_video_renderer_finalize;
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video_overlay_video_renderer_param_specs
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[VIDEO_OVERLAY_VIDEO_RENDERER_PROP_WINDOW_HANDLE] =
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g_param_spec_pointer ("window-handle", "Window Handle",
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"Window handle to embed the video into",
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G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS);
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video_overlay_video_renderer_param_specs
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[VIDEO_OVERLAY_VIDEO_RENDERER_PROP_VIDEO_SINK] =
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g_param_spec_object ("video-sink", "Video Sink",
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"the video output element to use (NULL = default sink)",
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GST_TYPE_ELEMENT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
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g_object_class_install_properties (gobject_class,
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VIDEO_OVERLAY_VIDEO_RENDERER_PROP_LAST,
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video_overlay_video_renderer_param_specs);
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}
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static void
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gst_play_video_overlay_video_renderer_init
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(GstPlayVideoOverlayVideoRenderer * self)
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{
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self->x = self->y = self->width = self->height = -1;
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self->video_sink = NULL;
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}
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static GstElement *gst_play_video_overlay_video_renderer_create_video_sink
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(GstPlayVideoRenderer * iface, GstPlay * play)
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{
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GstElement *video_overlay;
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GstPlayVideoOverlayVideoRenderer *self =
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GST_PLAY_VIDEO_OVERLAY_VIDEO_RENDERER (iface);
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if (self->video_overlay)
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gst_object_unref (self->video_overlay);
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video_overlay = gst_play_get_pipeline (play);
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g_return_val_if_fail (GST_IS_VIDEO_OVERLAY (video_overlay), NULL);
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self->video_overlay = GST_VIDEO_OVERLAY (video_overlay);
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gst_video_overlay_set_window_handle (self->video_overlay,
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(guintptr) self->window_handle);
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if (self->width != -1 || self->height != -1)
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gst_video_overlay_set_render_rectangle (self->video_overlay, self->x,
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self->y, self->width, self->height);
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return self->video_sink;
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}
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static void
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gst_play_video_overlay_video_renderer_interface_init
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(GstPlayVideoRendererInterface * iface)
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{
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iface->create_video_sink =
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gst_play_video_overlay_video_renderer_create_video_sink;
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}
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/**
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* gst_play_video_overlay_video_renderer_new:
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* @window_handle: (allow-none): Window handle to use or %NULL
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*
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* Returns: (transfer full):
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* Since: 1.20
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*/
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GstPlayVideoRenderer *
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gst_play_video_overlay_video_renderer_new (gpointer window_handle)
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{
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return g_object_new (GST_TYPE_PLAY_VIDEO_OVERLAY_VIDEO_RENDERER,
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"window-handle", window_handle, NULL);
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}
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/**
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* gst_play_video_overlay_video_renderer_new_with_sink:
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* @window_handle: (allow-none): Window handle to use or %NULL
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* @video_sink: (transfer floating): the custom video_sink element to be set for the video renderer
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*
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* Returns: (transfer full):
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*
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* Since: 1.20
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*/
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GstPlayVideoRenderer *
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gst_play_video_overlay_video_renderer_new_with_sink (gpointer window_handle,
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GstElement * video_sink)
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{
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return g_object_new (GST_TYPE_PLAY_VIDEO_OVERLAY_VIDEO_RENDERER,
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"window-handle", window_handle, "video-sink", video_sink, NULL);
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}
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/**
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* gst_play_video_overlay_video_renderer_set_window_handle:
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* @self: #GstPlayVideoRenderer instance
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* @window_handle: handle referencing to the platform specific window
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*
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* Sets the platform specific window handle into which the video
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* should be rendered
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* Since: 1.20
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**/
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void gst_play_video_overlay_video_renderer_set_window_handle
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(GstPlayVideoOverlayVideoRenderer * self, gpointer window_handle)
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{
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g_return_if_fail (GST_IS_PLAY_VIDEO_OVERLAY_VIDEO_RENDERER (self));
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g_object_set (self, "window-handle", window_handle, NULL);
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}
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/**
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* gst_play_video_overlay_video_renderer_get_window_handle:
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* @self: #GstPlayVideoRenderer instance
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*
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* Returns: (transfer none): The currently set, platform specific window
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* handle
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* Since: 1.20
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*/
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gpointer
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gst_play_video_overlay_video_renderer_get_window_handle
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(GstPlayVideoOverlayVideoRenderer * self) {
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gpointer window_handle;
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g_return_val_if_fail (GST_IS_PLAY_VIDEO_OVERLAY_VIDEO_RENDERER (self), NULL);
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g_object_get (self, "window-handle", &window_handle, NULL);
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return window_handle;
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}
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/**
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* gst_play_video_overlay_video_renderer_expose:
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* @self: a #GstPlayVideoOverlayVideoRenderer instance.
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*
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* Tell an overlay that it has been exposed. This will redraw the current frame
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* in the drawable even if the pipeline is PAUSED.
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* Since: 1.20
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*/
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void gst_play_video_overlay_video_renderer_expose
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(GstPlayVideoOverlayVideoRenderer * self)
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{
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g_return_if_fail (GST_IS_PLAY_VIDEO_OVERLAY_VIDEO_RENDERER (self));
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if (self->video_overlay)
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gst_video_overlay_expose (self->video_overlay);
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}
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/**
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* gst_play_video_overlay_video_renderer_set_render_rectangle:
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* @self: a #GstPlayVideoOverlayVideoRenderer instance
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* @x: the horizontal offset of the render area inside the window
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* @y: the vertical offset of the render area inside the window
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* @width: the width of the render area inside the window
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* @height: the height of the render area inside the window
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*
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* Configure a subregion as a video target within the window set by
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* gst_play_video_overlay_video_renderer_set_window_handle(). If this is not
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* used or not supported the video will fill the area of the window set as the
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* overlay to 100%. By specifying the rectangle, the video can be overlaid to
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* a specific region of that window only. After setting the new rectangle one
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* should call gst_play_video_overlay_video_renderer_expose() to force a
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* redraw. To unset the region pass -1 for the @width and @height parameters.
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*
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* This method is needed for non fullscreen video overlay in UI toolkits that
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* do not support subwindows.
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*
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* Since: 1.20
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*/
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void gst_play_video_overlay_video_renderer_set_render_rectangle
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(GstPlayVideoOverlayVideoRenderer * self, gint x, gint y, gint width,
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gint height)
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{
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g_return_if_fail (GST_IS_PLAY_VIDEO_OVERLAY_VIDEO_RENDERER (self));
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self->x = x;
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self->y = y;
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self->width = width;
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self->height = height;
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if (self->video_overlay)
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gst_video_overlay_set_render_rectangle (self->video_overlay,
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x, y, width, height);
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}
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/**
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* gst_play_video_overlay_video_renderer_get_render_rectangle:
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* @self: a #GstPlayVideoOverlayVideoRenderer instance
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* @x: (out) (allow-none): the horizontal offset of the render area inside the window
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* @y: (out) (allow-none): the vertical offset of the render area inside the window
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* @width: (out) (allow-none): the width of the render area inside the window
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* @height: (out) (allow-none): the height of the render area inside the window
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*
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* Return the currently configured render rectangle. See gst_play_video_overlay_video_renderer_set_render_rectangle()
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* for details.
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*
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* Since: 1.20
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*/
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void gst_play_video_overlay_video_renderer_get_render_rectangle
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(GstPlayVideoOverlayVideoRenderer * self, gint * x, gint * y,
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gint * width, gint * height)
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{
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g_return_if_fail (GST_IS_PLAY_VIDEO_OVERLAY_VIDEO_RENDERER (self));
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if (x)
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*x = self->x;
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if (y)
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*y = self->y;
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if (width)
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*width = self->width;
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if (height)
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*height = self->height;
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}
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