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