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Merged GstVideoOverlay features here.

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Original commit message from CVS:
Merged GstVideoOverlay features here.
This commit is contained in:
Julien Moutte 2003-11-17 16:29:38 +00:00
parent 21d8a397eb
commit 4653e15653
2 changed files with 96 additions and 9 deletions
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90
gst-libs/gst/xoverlay/xoverlay.c
View file

@ -25,7 +25,15 @@
#include "xoverlay.h"
static void gst_x_overlay_class_init (GstXOverlayClass *klass);
enum {
HAVE_XWINDOW_ID,
HAVE_SIZE,
LAST_SIGNAL
};
static guint gst_x_overlay_signals[LAST_SIGNAL] = { 0 };
static void gst_x_overlay_base_init (gpointer g_class);
GType
gst_x_overlay_get_type (void)
@ -35,7 +43,7 @@ gst_x_overlay_get_type (void)
if (!gst_x_overlay_type) {
static const GTypeInfo gst_x_overlay_info = {
sizeof (GstXOverlayClass),
(GBaseInitFunc) gst_x_overlay_class_init,
gst_x_overlay_base_init,
NULL,
NULL,
NULL,
@ -56,15 +64,43 @@ gst_x_overlay_get_type (void)
}
static void
gst_x_overlay_class_init (GstXOverlayClass *klass)
gst_x_overlay_base_init (gpointer g_class)
{
/* default virtual functions */
klass->set_xwindow_id = NULL;
static gboolean initialized = FALSE;
if (! initialized)
{
gst_x_overlay_signals[HAVE_SIZE] =
g_signal_new ("have_size",
GST_TYPE_X_OVERLAY, G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GstXOverlayClass, have_size),
NULL, NULL,
gst_marshal_VOID__INT_INT, G_TYPE_NONE, 2,
G_TYPE_UINT, G_TYPE_UINT);
gst_x_overlay_signals[HAVE_XWINDOW_ID] =
g_signal_new ("have_xwindow_id",
GST_TYPE_X_OVERLAY, G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GstXOverlayClass, have_xwindow_id),
NULL, NULL,
g_cclosure_marshal_VOID__POINTER, G_TYPE_NONE, 1,
G_TYPE_POINTER);
initialized = TRUE;
}
}
/**
* gst_x_overlay_set_xwindow_id:
* @overlay: a #GstXOverlay to set the XWindow on.
* @xwindow_id: a #XID referencing the XWindow.
*
* This will call the video overlay's set_xwindow_id method. You should
* use this method to tell to a XOverlay to display video output to a
* specific XWindow.
*/
void
gst_x_overlay_set_xwindow_id (GstXOverlay *overlay,
XID xwindow_id)
gst_x_overlay_set_xwindow_id (GstXOverlay *overlay, XID xwindow_id)
{
GstXOverlayClass *klass = GST_X_OVERLAY_GET_CLASS (overlay);
@ -72,3 +108,43 @@ gst_x_overlay_set_xwindow_id (GstXOverlay *overlay,
klass->set_xwindow_id (overlay, xwindow_id);
}
}
/**
* gst_x_overlay_got_xwindow_id:
* @overlay: a #GstXOverlay which got a XWindow.
* @xwindow_id: a #XID referencing the XWindow.
*
* This will fire an have_xwindow_id signal.
*
* This function should be used by video overlay developpers.
*/
void
gst_x_overlay_got_xwindow_id (GstXOverlay *overlay, XID xwindow_id)
{
g_return_if_fail (overlay != NULL);
g_return_if_fail (GST_IS_X_OVERLAY (overlay));
g_signal_emit (G_OBJECT (overlay),
gst_x_overlay_signals[HAVE_XWINDOW_ID], 0, xwindow_id);
}
/**
* gst_x_overlay_got_video_size:
* @overlay: a #GstXOverlay which received video geometry.
* @width: a width as a #gint.
* @height: a height as a #gint.
*
* This will fire an have_size signal.
*
* This function should be used by video overlay developpers.
*/
void
gst_x_overlay_got_video_size (GstXOverlay *overlay,
gint width, gint height)
{
g_return_if_fail (overlay != NULL);
g_return_if_fail (GST_IS_X_OVERLAY (overlay));
g_signal_emit (G_OBJECT (overlay), gst_x_overlay_signals[HAVE_SIZE],
0, width, height);
}

15
gst-libs/gst/xoverlay/xoverlay.h
View file

@ -1,5 +1,6 @@
/* GStreamer X-based Overlay
* Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
* Copyright (C) 2003 Julien Moutte <julien@moutte.net>
*
* x-overlay.h: X-based overlay interface design
*
@ -48,13 +49,23 @@ typedef struct _GstXOverlayClass {
/* virtual functions */
void (* set_xwindow_id) (GstXOverlay *overlay,
XID xwindow_id);
/* signals */
void (*have_xwindow_id) (GstXOverlay *overlay,
XID xwindow_id);
void (*have_size) (GstXOverlay *overlay, gint width, gint height);
} GstXOverlayClass;
GType gst_x_overlay_get_type (void);
/* virtual class function wrappers */
void gst_x_overlay_set_xwindow_id (GstXOverlay *overlay,
XID xwindow_id);
void gst_x_overlay_set_xwindow_id (GstXOverlay *overlay, XID xwindow_id);
/* public methods to fire signals */
void gst_x_overlay_got_xwindow_id (GstXOverlay *overlay, XID xwindow_id);
void gst_x_overlay_got_video_size (GstXOverlay *overlay,
gint width, gint height);
G_END_DECLS