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/*
* Copyright (c) 2010 The VP8 project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license and patent
* grant that can be found in the LICENSE file in the root of the source
* tree. All contributing project authors may be found in the AUTHORS
* file in the root of the source tree.
*/
#ifndef __VPX_SCALE_ARBITRARY_H__
#define __VPX_SCALE_ARBITRARY_H__
#include "vpx_scale/yv12config.h"
typedef struct
{
int in_width;
int in_height;
int out_width;
int out_height;
int max_usable_out_width;
// numerator for the width and height
int nw;
int nh;
int nh_uv;
// output to input correspondance array
short *l_w;
short *l_h;
short *l_h_uv;
// polyphase coefficients
short *c_w;
short *c_h;
short *c_h_uv;
// buffer for horizontal filtering.
unsigned char *hbuf;
unsigned char *hbuf_uv;
} BICUBIC_SCALER_STRUCT;
int bicubic_coefficient_setup(int in_width, int in_height, int out_width, int out_height);
int bicubic_scale(int in_width, int in_height, int in_stride,
int out_width, int out_height, int out_stride,
unsigned char *input_image, unsigned char *output_image);
void bicubic_scale_frame_reset();
void bicubic_scale_frame(YV12_BUFFER_CONFIG *src, YV12_BUFFER_CONFIG *dst,
int new_width, int new_height);
void bicubic_coefficient_init();
void bicubic_coefficient_destroy();
#endif /* __VPX_SCALE_ARBITRARY_H__ */