gstreamer/subprojects/gstreamer-vaapi/gst/vaapi/gstvaapioverlay.h
Haihao Xiang 55ceddff91 vaapioverlay: inline sinkpad scaling support
Often, users will need to scale inputs (e.g.
with vaapipostproc) before they are submitted
to the vaapioverlay.  However, this results in
multiple VPP passes/operations in the pipeline
which creates unnecessary process overhead.

This change allows for inputs to be submitted
at original scale to vaapioverlay with per-sinkpad
scale dimensions specified so they can be scaled
and blended/composited in a single VPP pass/operation
to avoid the unnecessary process overhead.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1380>
2022-02-16 19:19:56 -08:00

104 lines
3.2 KiB
C

/*
* gstvaapioverlay.h - VA-API vpp overlay
*
* Copyright (C) 2019 Intel Corporation
* Author: U. Artie Eoff <ullysses.a.eoff@intel.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1
* of the License, or (at your option) any later version.
*
* This program 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
#ifndef GST_VAAPI_OVERLAY_H
#define GST_VAAPI_OVERLAY_H
#include "gstvaapipluginbase.h"
#include <gst/vaapi/gstvaapisurfacepool.h>
#include <gst/vaapi/gstvaapiblend.h>
G_BEGIN_DECLS
#define GST_TYPE_VAAPI_OVERLAY (gst_vaapi_overlay_get_type ())
#define GST_VAAPI_OVERLAY(obj) \
(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_VAAPI_OVERLAY, GstVaapiOverlay))
#define GST_VAAPI_OVERLAY_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_VAAPI_OVERLAY, \
GstVaapiOverlayClass))
#define GST_IS_VAAPI_OVERLAY(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_VAAPI_OVERLAY))
#define GST_IS_VAAPI_OVERLAY_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_VAAPI_OVERLAY))
#define GST_VAAPI_OVERLAY_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_VAAPI_OVERLAY, \
GstVaapiOverlayClass))
#define GST_TYPE_VAAPI_OVERLAY_SINK_PAD (gst_vaapi_overlay_sink_pad_get_type())
#define GST_VAAPI_OVERLAY_SINK_PAD(obj) \
(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_VAAPI_OVERLAY_SINK_PAD, \
GstVaapiOverlaySinkPad))
#define GST_VAAPI_OVERLAY_SINK_PAD_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_VAAPI_OVERLAY_SINK_PAD, \
GstVaapiOverlaySinkPadClass))
#define GST_IS_VAAPI_OVERLAY_SINK_PAD(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_VAAPI_OVERLAY_SINK_PAD))
#define GST_IS_VAAPI_OVERLAY_SINK_PAD_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_VAAPI_OVERLAY_SINK_PAD))
typedef struct _GstVaapiOverlay GstVaapiOverlay;
typedef struct _GstVaapiOverlayClass GstVaapiOverlayClass;
typedef struct _GstVaapiOverlaySinkPad GstVaapiOverlaySinkPad;
typedef struct _GstVaapiOverlaySinkPadClass GstVaapiOverlaySinkPadClass;
struct _GstVaapiOverlay
{
GstVaapiPluginBase parent_instance;
GstVaapiBlend *blend;
GstVaapiVideoPool *blend_pool;
};
struct _GstVaapiOverlayClass
{
GstVaapiPluginBaseClass parent_class;
};
struct _GstVaapiOverlaySinkPad
{
GstVideoAggregatorPad parent_instance;
gint xpos, ypos;
gint width, height;
gdouble alpha;
GstVaapiPadPrivate *priv;
};
struct _GstVaapiOverlaySinkPadClass
{
GstVideoAggregatorPadClass parent_class;
};
GType
gst_vaapi_overlay_get_type (void) G_GNUC_CONST;
GType
gst_vaapi_overlay_sink_pad_get_type (void) G_GNUC_CONST;
gboolean
gst_vaapioverlay_register (GstPlugin * plugin, GstVaapiDisplay * display);
G_END_DECLS
#endif