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