obs-studio/libobs/media-io/video-scaler.h

/******************************************************************************
    Copyright (C) 2023 by Lain Bailey <[email protected]>

    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/>.
******************************************************************************/

#pragma once

#include "../util/c99defs.h"
#include "video-io.h"

#ifdef __cplusplus
extern "C" {
#endif

struct video_scaler;
typedef struct video_scaler video_scaler_t;

#define VIDEO_SCALER_SUCCESS 0
#define VIDEO_SCALER_BAD_CONVERSION -1
#define VIDEO_SCALER_FAILED -2

EXPORT int video_scaler_create(video_scaler_t **scaler,
			       const struct video_scale_info *dst,
			       const struct video_scale_info *src,
			       enum video_scale_type type);
EXPORT void video_scaler_destroy(video_scaler_t *scaler);

EXPORT bool video_scaler_scale(video_scaler_t *scaler, uint8_t *output[],
			       const uint32_t out_linesize[],
			       const uint8_t *const input[],
			       const uint32_t in_linesize[]);

#ifdef __cplusplus
}
#endif