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d28ffd73c3
A plugin similar to the base compositor element but uses VA-API VPP blend functions to accelerate the overlay/compositing. Simple example: gst-launch-1.0 -vf videotestsrc ! vaapipostproc \ ! tee name=testsrc ! queue \ ! vaapioverlay sink_1::xpos=300 sink_1::alpha=0.75 \ name=overlay ! vaapisink testsrc. ! queue ! overlay.
103 lines
3.2 KiB
C
103 lines
3.2 KiB
C
/*
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* gstvaapioverlay.h - VA-API vpp overlay
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*
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* Copyright (C) 2019 Intel Corporation
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* Author: U. Artie Eoff <ullysses.a.eoff@intel.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1
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* of the License, or (at your option) any later version.
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*
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* This program 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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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this program; if not, write to the Free
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* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA
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*/
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#ifndef GST_VAAPI_OVERLAY_H
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#define GST_VAAPI_OVERLAY_H
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#include "gstvaapipluginbase.h"
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#include <gst/vaapi/gstvaapisurfacepool.h>
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#include <gst/vaapi/gstvaapiblend.h>
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G_BEGIN_DECLS
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#define GST_TYPE_VAAPI_OVERLAY (gst_vaapi_overlay_get_type ())
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#define GST_VAAPI_OVERLAY(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_VAAPI_OVERLAY, GstVaapiOverlay))
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#define GST_VAAPI_OVERLAY_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_VAAPI_OVERLAY, \
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GstVaapiOverlayClass))
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#define GST_IS_VAAPI_OVERLAY(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_VAAPI_OVERLAY))
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#define GST_IS_VAAPI_OVERLAY_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_VAAPI_OVERLAY))
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#define GST_VAAPI_OVERLAY_GET_CLASS(obj) \
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(G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_VAAPI_OVERLAY, \
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GstVaapiOverlayClass))
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#define GST_TYPE_VAAPI_OVERLAY_SINK_PAD (gst_vaapi_overlay_sink_pad_get_type())
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#define GST_VAAPI_OVERLAY_SINK_PAD(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_VAAPI_OVERLAY_SINK_PAD, \
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GstVaapiOverlaySinkPad))
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#define GST_VAAPI_OVERLAY_SINK_PAD_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_VAAPI_OVERLAY_SINK_PAD, \
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GstVaapiOverlaySinkPadClass))
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#define GST_IS_VAAPI_OVERLAY_SINK_PAD(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_VAAPI_OVERLAY_SINK_PAD))
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#define GST_IS_VAAPI_OVERLAY_SINK_PAD_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_VAAPI_OVERLAY_SINK_PAD))
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typedef struct _GstVaapiOverlay GstVaapiOverlay;
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typedef struct _GstVaapiOverlayClass GstVaapiOverlayClass;
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typedef struct _GstVaapiOverlaySinkPad GstVaapiOverlaySinkPad;
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typedef struct _GstVaapiOverlaySinkPadClass GstVaapiOverlaySinkPadClass;
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struct _GstVaapiOverlay
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{
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GstVaapiPluginBase parent_instance;
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GstVaapiBlend *blend;
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GstVaapiVideoPool *blend_pool;
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};
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struct _GstVaapiOverlayClass
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{
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GstVaapiPluginBaseClass parent_class;
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};
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struct _GstVaapiOverlaySinkPad
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{
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GstVideoAggregatorPad parent_instance;
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gint xpos, ypos;
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gdouble alpha;
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GstVaapiPadPrivate *priv;
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};
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struct _GstVaapiOverlaySinkPadClass
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{
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GstVideoAggregatorPadClass parent_class;
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};
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GType
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gst_vaapi_overlay_get_type (void) G_GNUC_CONST;
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GType
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gst_vaapi_overlay_sink_pad_get_type (void) G_GNUC_CONST;
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gboolean
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gst_vaapioverlay_register (GstPlugin * plugin, GstVaapiDisplay * display);
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G_END_DECLS
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#endif
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