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/*****************************************************************
* gavl - a general purpose audio/video processing library
*
* Copyright (c) 2001 - 2012 Members of the Gmerlin project
* gmerlin-general@lists.sourceforge.net
* http://gmerlin.sourceforge.net
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
* *****************************************************************/
#include <gavl/connectors.h>
typedef void (*gavl_blend_func_t)(gavl_overlay_blend_context_t * ctx,
gavl_video_frame_t * frame,
gavl_video_frame_t * overlay);
struct gavl_overlay_blend_context_s
{
gavl_video_format_t dst_format;
gavl_video_format_t ovl_format;
gavl_blend_func_t func;
gavl_overlay_t * ovl;
gavl_video_frame_t * ovl_win;
gavl_video_frame_t * dst_win;
gavl_rectangle_i_t dst_rect;
gavl_video_options_t opt;
/* Chroma subsampling of the destination format */
int dst_sub_h, dst_sub_v;
gavl_video_sink_t * sink;
};
gavl_blend_func_t
gavl_find_blend_func_c(gavl_overlay_blend_context_t * ctx,
gavl_pixelformat_t frame_format,
gavl_pixelformat_t * overlay_format);
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