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aae25e0032
This removes the crossfade-ratio property and replaces it with an operator property. Currently this implements the following operators: - SOURCE: Copy over the source and don't look at the destination - OVER: Default blending of the source over the destination - ADD: Like OVER but simply adding the alpha instead See the example for how to implement crossfading with this. https://bugzilla.gnome.org/show_bug.cgi?id=797169
120 lines
5.5 KiB
C
120 lines
5.5 KiB
C
/*
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* Copyright (C) 2009 Sebastian Dröge <sebastian.droege@collabora.co.uk>
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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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#ifndef __BLEND_H__
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#define __BLEND_H__
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#include <gst/gst.h>
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#include <gst/video/video.h>
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/**
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* GstCompositorBlendMode:
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* @COMPOSITOR_BLEND_MODE_SOURCE: Copy source
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* @COMPOSITOR_BLEND_MODE_OVER: Normal blending
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* @COMPOSITOR_BLEND_MODE_ADD: Alphas are simply added,
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*
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* The different modes compositor can use for blending.
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*/
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typedef enum
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{
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COMPOSITOR_BLEND_MODE_SOURCE,
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COMPOSITOR_BLEND_MODE_OVER,
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COMPOSITOR_BLEND_MODE_ADD,
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} GstCompositorBlendMode;
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typedef void (*BlendFunction) (GstVideoFrame *srcframe, gint xpos, gint ypos, gdouble src_alpha, GstVideoFrame * destframe,
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GstCompositorBlendMode mode);
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typedef void (*FillCheckerFunction) (GstVideoFrame * frame);
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typedef void (*FillColorFunction) (GstVideoFrame * frame, gint c1, gint c2, gint c3);
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extern BlendFunction gst_compositor_blend_argb;
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extern BlendFunction gst_compositor_blend_bgra;
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#define gst_compositor_blend_ayuv gst_compositor_blend_argb
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#define gst_compositor_blend_abgr gst_compositor_blend_argb
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#define gst_compositor_blend_rgba gst_compositor_blend_bgra
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extern BlendFunction gst_compositor_overlay_argb;
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extern BlendFunction gst_compositor_overlay_bgra;
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#define gst_compositor_overlay_ayuv gst_compositor_overlay_argb
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#define gst_compositor_overlay_abgr gst_compositor_overlay_argb
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#define gst_compositor_overlay_rgba gst_compositor_overlay_bgra
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extern BlendFunction gst_compositor_blend_i420;
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#define gst_compositor_blend_yv12 gst_compositor_blend_i420
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extern BlendFunction gst_compositor_blend_nv12;
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extern BlendFunction gst_compositor_blend_nv21;
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extern BlendFunction gst_compositor_blend_y41b;
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extern BlendFunction gst_compositor_blend_y42b;
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extern BlendFunction gst_compositor_blend_y444;
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extern BlendFunction gst_compositor_blend_rgb;
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#define gst_compositor_blend_bgr gst_compositor_blend_rgb
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extern BlendFunction gst_compositor_blend_rgbx;
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#define gst_compositor_blend_bgrx gst_compositor_blend_rgbx
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#define gst_compositor_blend_xrgb gst_compositor_blend_rgbx
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#define gst_compositor_blend_xbgr gst_compositor_blend_rgbx
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extern BlendFunction gst_compositor_blend_yuy2;
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#define gst_compositor_blend_uyvy gst_compositor_blend_yuy2;
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#define gst_compositor_blend_yvyu gst_compositor_blend_yuy2;
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extern FillCheckerFunction gst_compositor_fill_checker_argb;
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#define gst_compositor_fill_checker_abgr gst_compositor_fill_checker_argb
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extern FillCheckerFunction gst_compositor_fill_checker_bgra;
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#define gst_compositor_fill_checker_rgba gst_compositor_fill_checker_bgra
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extern FillCheckerFunction gst_compositor_fill_checker_ayuv;
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extern FillCheckerFunction gst_compositor_fill_checker_i420;
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#define gst_compositor_fill_checker_yv12 gst_compositor_fill_checker_i420
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extern FillCheckerFunction gst_compositor_fill_checker_nv12;
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extern FillCheckerFunction gst_compositor_fill_checker_nv21;
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extern FillCheckerFunction gst_compositor_fill_checker_y41b;
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extern FillCheckerFunction gst_compositor_fill_checker_y42b;
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extern FillCheckerFunction gst_compositor_fill_checker_y444;
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extern FillCheckerFunction gst_compositor_fill_checker_rgb;
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#define gst_compositor_fill_checker_bgr gst_compositor_fill_checker_rgb
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extern FillCheckerFunction gst_compositor_fill_checker_rgbx;
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#define gst_compositor_fill_checker_bgrx gst_compositor_fill_checker_rgbx
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#define gst_compositor_fill_checker_xrgb gst_compositor_fill_checker_rgbx
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#define gst_compositor_fill_checker_xbgr gst_compositor_fill_checker_rgbx
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extern FillCheckerFunction gst_compositor_fill_checker_yuy2;
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#define gst_compositor_fill_checker_yvyu gst_compositor_fill_checker_yuy2;
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extern FillCheckerFunction gst_compositor_fill_checker_uyvy;
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extern FillColorFunction gst_compositor_fill_color_argb;
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extern FillColorFunction gst_compositor_fill_color_abgr;
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extern FillColorFunction gst_compositor_fill_color_bgra;
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extern FillColorFunction gst_compositor_fill_color_rgba;
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extern FillColorFunction gst_compositor_fill_color_ayuv;
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extern FillColorFunction gst_compositor_fill_color_i420;
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extern FillColorFunction gst_compositor_fill_color_yv12;
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extern FillColorFunction gst_compositor_fill_color_nv12;
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#define gst_compositor_fill_color_nv21 gst_compositor_fill_color_nv12;
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extern FillColorFunction gst_compositor_fill_color_y41b;
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extern FillColorFunction gst_compositor_fill_color_y42b;
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extern FillColorFunction gst_compositor_fill_color_y444;
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extern FillColorFunction gst_compositor_fill_color_rgb;
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extern FillColorFunction gst_compositor_fill_color_bgr;
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extern FillColorFunction gst_compositor_fill_color_xrgb;
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extern FillColorFunction gst_compositor_fill_color_xbgr;
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extern FillColorFunction gst_compositor_fill_color_rgbx;
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extern FillColorFunction gst_compositor_fill_color_bgrx;
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extern FillColorFunction gst_compositor_fill_color_yuy2;
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extern FillColorFunction gst_compositor_fill_color_yvyu;
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extern FillColorFunction gst_compositor_fill_color_uyvy;
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void gst_compositor_init_blend (void);
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#endif /* __BLEND_H__ */
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