/* * Copyright (C) 2009 Sebastian Dröge * * 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. */ #ifndef __BLEND_H__ #define __BLEND_H__ #include #include /** * GstCompositorBlendMode: * @COMPOSITOR_BLEND_MODE_SOURCE: Copy source * @COMPOSITOR_BLEND_MODE_OVER: Normal blending * @COMPOSITOR_BLEND_MODE_ADD: Alphas are simply added, * * The different modes compositor can use for blending. */ typedef enum { COMPOSITOR_BLEND_MODE_SOURCE, COMPOSITOR_BLEND_MODE_OVER, COMPOSITOR_BLEND_MODE_ADD, } GstCompositorBlendMode; /* * @srcframe: source #GstVideoFrame * @xpos: horizontal start position of @srcframe, leftmost pixel line. * @ypos: vertical start position of @srcframe, topmost pixel line. * @gdouble: src_alpha, alpha factor applied to @srcframe * @destframe: destination #GstVideoFrame * @dst_y_start: start position of where to write into @destframe. Used for splitting work across multiple sequences. * @dst_y_end: end position of where to write into @destframe. Used for splitting work across multiple sequences. */ typedef void (*BlendFunction) (GstVideoFrame *srcframe, gint xpos, gint ypos, gdouble src_alpha, GstVideoFrame * destframe, gint dst_y_start, gint dst_y_end, GstCompositorBlendMode mode); typedef void (*FillCheckerFunction) (GstVideoFrame * frame, guint y_start, guint y_end); typedef void (*FillColorFunction) (GstVideoFrame * frame, guint y_start, guint y_end, gint c1, gint c2, gint c3); extern BlendFunction gst_compositor_blend_argb; extern BlendFunction gst_compositor_blend_bgra; #define gst_compositor_blend_ayuv gst_compositor_blend_argb #define gst_compositor_blend_vuya gst_compositor_blend_bgra #define gst_compositor_blend_abgr gst_compositor_blend_argb #define gst_compositor_blend_rgba gst_compositor_blend_bgra extern BlendFunction gst_compositor_overlay_argb; extern BlendFunction gst_compositor_overlay_bgra; #define gst_compositor_overlay_ayuv gst_compositor_overlay_argb #define gst_compositor_overlay_vuya gst_compositor_overlay_bgra #define gst_compositor_overlay_abgr gst_compositor_overlay_argb #define gst_compositor_overlay_rgba gst_compositor_overlay_bgra extern BlendFunction gst_compositor_blend_i420; #define gst_compositor_blend_yv12 gst_compositor_blend_i420 extern BlendFunction gst_compositor_blend_nv12; extern BlendFunction gst_compositor_blend_nv21; extern BlendFunction gst_compositor_blend_y41b; extern BlendFunction gst_compositor_blend_y42b; extern BlendFunction gst_compositor_blend_y444; extern BlendFunction gst_compositor_blend_rgb; #define gst_compositor_blend_bgr gst_compositor_blend_rgb extern BlendFunction gst_compositor_blend_rgbx; #define gst_compositor_blend_bgrx gst_compositor_blend_rgbx #define gst_compositor_blend_xrgb gst_compositor_blend_rgbx #define gst_compositor_blend_xbgr gst_compositor_blend_rgbx extern BlendFunction gst_compositor_blend_yuy2; #define gst_compositor_blend_uyvy gst_compositor_blend_yuy2; #define gst_compositor_blend_yvyu gst_compositor_blend_yuy2; extern FillCheckerFunction gst_compositor_fill_checker_argb; #define gst_compositor_fill_checker_abgr gst_compositor_fill_checker_argb extern FillCheckerFunction gst_compositor_fill_checker_bgra; #define gst_compositor_fill_checker_rgba gst_compositor_fill_checker_bgra extern FillCheckerFunction gst_compositor_fill_checker_ayuv; extern FillCheckerFunction gst_compositor_fill_checker_vuya; extern FillCheckerFunction gst_compositor_fill_checker_i420; #define gst_compositor_fill_checker_yv12 gst_compositor_fill_checker_i420 extern FillCheckerFunction gst_compositor_fill_checker_nv12; extern FillCheckerFunction gst_compositor_fill_checker_nv21; extern FillCheckerFunction gst_compositor_fill_checker_y41b; extern FillCheckerFunction gst_compositor_fill_checker_y42b; extern FillCheckerFunction gst_compositor_fill_checker_y444; extern FillCheckerFunction gst_compositor_fill_checker_rgb; #define gst_compositor_fill_checker_bgr gst_compositor_fill_checker_rgb extern FillCheckerFunction gst_compositor_fill_checker_rgbx; #define gst_compositor_fill_checker_bgrx gst_compositor_fill_checker_rgbx extern FillCheckerFunction gst_compositor_fill_checker_xrgb; #define gst_compositor_fill_checker_xbgr gst_compositor_fill_checker_xrgb extern FillCheckerFunction gst_compositor_fill_checker_yuy2; #define gst_compositor_fill_checker_yvyu gst_compositor_fill_checker_yuy2; extern FillCheckerFunction gst_compositor_fill_checker_uyvy; extern FillColorFunction gst_compositor_fill_color_argb; extern FillColorFunction gst_compositor_fill_color_abgr; extern FillColorFunction gst_compositor_fill_color_bgra; extern FillColorFunction gst_compositor_fill_color_rgba; extern FillColorFunction gst_compositor_fill_color_ayuv; extern FillColorFunction gst_compositor_fill_color_vuya; extern FillColorFunction gst_compositor_fill_color_i420; extern FillColorFunction gst_compositor_fill_color_yv12; extern FillColorFunction gst_compositor_fill_color_nv12; #define gst_compositor_fill_color_nv21 gst_compositor_fill_color_nv12; extern FillColorFunction gst_compositor_fill_color_y41b; extern FillColorFunction gst_compositor_fill_color_y42b; extern FillColorFunction gst_compositor_fill_color_y444; extern FillColorFunction gst_compositor_fill_color_rgb; extern FillColorFunction gst_compositor_fill_color_bgr; extern FillColorFunction gst_compositor_fill_color_xrgb; extern FillColorFunction gst_compositor_fill_color_xbgr; extern FillColorFunction gst_compositor_fill_color_rgbx; extern FillColorFunction gst_compositor_fill_color_bgrx; extern FillColorFunction gst_compositor_fill_color_yuy2; extern FillColorFunction gst_compositor_fill_color_yvyu; extern FillColorFunction gst_compositor_fill_color_uyvy; void gst_compositor_init_blend (void); #endif /* __BLEND_H__ */