FFmpeg/libavfilter/unsharp.h
Mark Thompson 3650cb2dfa lavu,lavfi,ffmpeg: Remove experimental OpenCL API
This was added in early 2013 and abandoned several months later; as far as
I can tell, there are no external users.  Future OpenCL use will be via
hwcontext, which requires neither special OpenCL-only API nor global state
in libavutil.

All internal users are also deleted - this is just the unsharp filter
(replaced by unsharp_opencl, which is more flexible) and the deshake filter
(no replacement).
2017-11-22 23:20:39 +00:00

55 lines
2.0 KiB
C

/*
* Copyright (C) 2013 Wei Gao <weigao@multicorewareinc.com>
* Copyright (C) 2013 Lenny Wang
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVFILTER_UNSHARP_H
#define AVFILTER_UNSHARP_H
#include "config.h"
#include "avfilter.h"
#define MIN_MATRIX_SIZE 3
#define MAX_MATRIX_SIZE 63
typedef struct UnsharpFilterParam {
int msize_x; ///< matrix width
int msize_y; ///< matrix height
int amount; ///< effect amount
int steps_x; ///< horizontal step count
int steps_y; ///< vertical step count
int scalebits; ///< bits to shift pixel
int32_t halfscale; ///< amount to add to pixel
uint32_t *sc[MAX_MATRIX_SIZE - 1]; ///< finite state machine storage
} UnsharpFilterParam;
typedef struct UnsharpContext {
const AVClass *class;
int lmsize_x, lmsize_y, cmsize_x, cmsize_y;
float lamount, camount;
UnsharpFilterParam luma; ///< luma parameters (width, height, amount)
UnsharpFilterParam chroma; ///< chroma parameters (width, height, amount)
int hsub, vsub;
int opencl;
int (* apply_unsharp)(AVFilterContext *ctx, AVFrame *in, AVFrame *out);
} UnsharpContext;
#endif /* AVFILTER_UNSHARP_H */