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libavcodec
ivi_dsp.h
Go to the documentation of this file.
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/*
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* DSP functions for Indeo Video Interactive codecs (Indeo4 and Indeo5)
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*
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* Copyright (c) 2009-2011 Maxim Poliakovski
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file
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* DSP functions (inverse transforms, motion compensations, wavelet recompostion)
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* for Indeo Video Interactive codecs.
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*/
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29
#ifndef AVCODEC_IVI_DSP_H
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#define AVCODEC_IVI_DSP_H
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32
#include "
avcodec.h
"
33
#include "
ivi_common.h
"
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35
/**
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* 5/3 wavelet recomposition filter for Indeo5
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*
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* @param[in] plane pointer to the descriptor of the plane being processed
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* @param[out] dst pointer to the destination buffer
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* @param[in] dst_pitch pitch of the destination buffer
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*/
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void
ff_ivi_recompose53
(
const
IVIPlaneDesc
*plane,
uint8_t
*dst,
43
const
int
dst_pitch
);
44
45
/**
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* Haar wavelet recomposition filter for Indeo 4
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*
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* @param[in] plane pointer to the descriptor of the plane being processed
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* @param[out] dst pointer to the destination buffer
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* @param[in] dst_pitch pitch of the destination buffer
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*/
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void
ff_ivi_recompose_haar
(
const
IVIPlaneDesc
*plane,
uint8_t
*dst,
53
const
int
dst_pitch
);
54
55
/**
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* two-dimensional inverse Haar 8x8 transform for Indeo 4
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*
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* @param[in] in pointer to the vector of transform coefficients
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* @param[out] out pointer to the output buffer (frame)
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* @param[in] pitch pitch to move to the next y line
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* @param[in] flags pointer to the array of column flags:
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* != 0 - non_empty column, 0 - empty one
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* (this array must be filled by caller)
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*/
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void
ff_ivi_inverse_haar_8x8
(
const
int32_t
*
in
, int16_t *
out
, uint32_t pitch,
66
const
uint8_t
*
flags
);
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void
ff_ivi_inverse_haar_8x1
(
const
int32_t
*
in
, int16_t *
out
, uint32_t pitch,
68
const
uint8_t
*
flags
);
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void
ff_ivi_inverse_haar_1x8
(
const
int32_t
*
in
, int16_t *
out
, uint32_t pitch,
70
const
uint8_t
*
flags
);
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/**
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* one-dimensional inverse 8-point Haar transform on rows for Indeo 4
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*
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* @param[in] in pointer to the vector of transform coefficients
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* @param[out] out pointer to the output buffer (frame)
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* @param[in] pitch pitch to move to the next y line
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* @param[in] flags pointer to the array of column flags:
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* != 0 - non_empty column, 0 - empty one
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* (this array must be filled by caller)
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*/
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void
ff_ivi_row_haar8
(
const
int32_t
*
in
, int16_t *
out
, uint32_t pitch,
83
const
uint8_t
*
flags
);
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85
/**
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* one-dimensional inverse 8-point Haar transform on columns for Indeo 4
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*
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* @param[in] in pointer to the vector of transform coefficients
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* @param[out] out pointer to the output buffer (frame)
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* @param[in] pitch pitch to move to the next y line
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* @param[in] flags pointer to the array of column flags:
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* != 0 - non_empty column, 0 - empty one
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* (this array must be filled by caller)
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*/
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void
ff_ivi_col_haar8
(
const
int32_t
*
in
, int16_t *
out
, uint32_t pitch,
96
const
uint8_t
*
flags
);
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98
/**
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* two-dimensional inverse Haar 4x4 transform for Indeo 4
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*
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* @param[in] in pointer to the vector of transform coefficients
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* @param[out] out pointer to the output buffer (frame)
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* @param[in] pitch pitch to move to the next y line
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* @param[in] flags pointer to the array of column flags:
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* != 0 - non_empty column, 0 - empty one
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* (this array must be filled by caller)
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*/
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void
ff_ivi_inverse_haar_4x4
(
const
int32_t
*
in
, int16_t *
out
, uint32_t pitch,
109
const
uint8_t
*
flags
);
110
111
/**
112
* one-dimensional inverse 4-point Haar transform on rows for Indeo 4
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*
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* @param[in] in pointer to the vector of transform coefficients
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* @param[out] out pointer to the output buffer (frame)
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* @param[in] pitch pitch to move to the next y line
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* @param[in] flags pointer to the array of column flags:
118
* != 0 - non_empty column, 0 - empty one
119
* (this array must be filled by caller)
120
*/
121
void
ff_ivi_row_haar4
(
const
int32_t
*
in
, int16_t *
out
, uint32_t pitch,
122
const
uint8_t
*
flags
);
123
124
/**
125
* one-dimensional inverse 4-point Haar transform on columns for Indeo 4
126
*
127
* @param[in] in pointer to the vector of transform coefficients
128
* @param[out] out pointer to the output buffer (frame)
129
* @param[in] pitch pitch to move to the next y line
130
* @param[in] flags pointer to the array of column flags:
131
* != 0 - non_empty column, 0 - empty one
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* (this array must be filled by caller)
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*/
134
void
ff_ivi_col_haar4
(
const
int32_t
*
in
, int16_t *
out
, uint32_t pitch,
135
const
uint8_t
*
flags
);
136
137
/**
138
* DC-only two-dimensional inverse Haar transform for Indeo 4.
139
* Performing the inverse transform in this case is equivalent to
140
* spreading DC_coeff >> 3 over the whole block.
141
*
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* @param[in] in pointer to the dc coefficient
143
* @param[out] out pointer to the output buffer (frame)
144
* @param[in] pitch pitch to move to the next y line
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* @param[in] blk_size transform block size
146
*/
147
void
ff_ivi_dc_haar_2d
(
const
int32_t
*
in
, int16_t *
out
, uint32_t pitch,
148
int
blk_size);
149
150
/**
151
* two-dimensional inverse slant 8x8 transform
152
*
153
* @param[in] in pointer to the vector of transform coefficients
154
* @param[out] out pointer to the output buffer (frame)
155
* @param[in] pitch pitch to move to the next y line
156
* @param[in] flags pointer to the array of column flags:
157
* != 0 - non_empty column, 0 - empty one
158
* (this array must be filled by caller)
159
*/
160
void
ff_ivi_inverse_slant_8x8
(
const
int32_t
*
in
, int16_t *
out
, uint32_t pitch,
161
const
uint8_t
*
flags
);
162
163
/**
164
* two-dimensional inverse slant 4x4 transform
165
*
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* @param[in] in pointer to the vector of transform coefficients
167
* @param[out] out pointer to the output buffer (frame)
168
* @param[in] pitch pitch to move to the next y line
169
* @param[in] flags pointer to the array of column flags:
170
* != 0 - non_empty column, 0 - empty one
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* (this array must be filled by caller)
172
*/
173
void
ff_ivi_inverse_slant_4x4
(
const
int32_t
*
in
, int16_t *
out
, uint32_t pitch,
174
const
uint8_t
*
flags
);
175
176
/**
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* DC-only two-dimensional inverse slant transform.
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* Performing the inverse slant transform in this case is equivalent to
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* spreading (DC_coeff + 1)/2 over the whole block.
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* It works much faster than performing the slant transform on a vector of zeroes.
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*
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* @param[in] in pointer to the dc coefficient
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* @param[out] out pointer to the output buffer (frame)
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* @param[in] pitch pitch to move to the next y line
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* @param[in] blk_size transform block size
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*/
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void
ff_ivi_dc_slant_2d
(
const
int32_t
*
in
, int16_t *
out
, uint32_t pitch,
int
blk_size);
188
189
/**
190
* inverse 1D row slant transform
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*
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* @param[in] in pointer to the vector of transform coefficients
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* @param[out] out pointer to the output buffer (frame)
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* @param[in] pitch pitch to move to the next y line
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* @param[in] flags pointer to the array of column flags (unused here)
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*/
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void
ff_ivi_row_slant8
(
const
int32_t
*
in
, int16_t *
out
, uint32_t pitch,
198
const
uint8_t
*
flags
);
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200
/**
201
* inverse 1D column slant transform
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*
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* @param[in] in pointer to the vector of transform coefficients
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* @param[out] out pointer to the output buffer (frame)
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* @param[in] pitch pitch to move to the next y line
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* @param[in] flags pointer to the array of column flags:
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* != 0 - non_empty column, 0 - empty one
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* (this array must be filled by caller)
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*/
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void
ff_ivi_col_slant8
(
const
int32_t
*
in
, int16_t *
out
, uint32_t pitch,
211
const
uint8_t
*
flags
);
212
213
/**
214
* inverse 1D row slant transform
215
*
216
* @param[in] in pointer to the vector of transform coefficients
217
* @param[out] out pointer to the output buffer (frame)
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* @param[in] pitch pitch to move to the next y line
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* @param[in] flags pointer to the array of column flags (unused here)
220
*/
221
void
ff_ivi_row_slant4
(
const
int32_t
*
in
, int16_t *
out
, uint32_t pitch,
222
const
uint8_t
*
flags
);
223
224
/**
225
* inverse 1D column slant transform
226
*
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* @param[in] in pointer to the vector of transform coefficients
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* @param[out] out pointer to the output buffer (frame)
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* @param[in] pitch pitch to move to the next y line
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* @param[in] flags pointer to the array of column flags:
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* != 0 - non_empty column, 0 - empty one
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* (this array must be filled by caller)
233
*/
234
void
ff_ivi_col_slant4
(
const
int32_t
*
in
, int16_t *
out
, uint32_t pitch,
235
const
uint8_t
*
flags
);
236
237
/**
238
* DC-only inverse row slant transform
239
*/
240
void
ff_ivi_dc_row_slant
(
const
int32_t
*
in
, int16_t *
out
, uint32_t pitch,
int
blk_size);
241
242
/**
243
* DC-only inverse column slant transform
244
*/
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void
ff_ivi_dc_col_slant
(
const
int32_t
*
in
, int16_t *
out
, uint32_t pitch,
int
blk_size);
246
247
/**
248
* Copy the pixels into the frame buffer.
249
*/
250
void
ff_ivi_put_pixels_8x8
(
const
int32_t
*
in
, int16_t *
out
, uint32_t pitch,
const
uint8_t
*
flags
);
251
252
/**
253
* Copy the DC coefficient into the first pixel of the block and
254
* zero all others.
255
*/
256
void
ff_ivi_put_dc_pixel_8x8
(
const
int32_t
*
in
, int16_t *
out
, uint32_t pitch,
int
blk_size);
257
258
/**
259
* 8x8 block motion compensation with adding delta
260
*
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* @param[in,out] buf pointer to the block in the current frame buffer containing delta
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* @param[in] ref_buf pointer to the corresponding block in the reference frame
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* @param[in] pitch pitch for moving to the next y line
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* @param[in] mc_type interpolation type
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*/
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void
ff_ivi_mc_8x8_delta
(int16_t *
buf
,
const
int16_t *
ref_buf
, uint32_t pitch,
int
mc_type);
267
268
/**
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* 4x4 block motion compensation with adding delta
270
*
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* @param[in,out] buf pointer to the block in the current frame buffer containing delta
272
* @param[in] ref_buf pointer to the corresponding block in the reference frame
273
* @param[in] pitch pitch for moving to the next y line
274
* @param[in] mc_type interpolation type
275
*/
276
void
ff_ivi_mc_4x4_delta
(int16_t *
buf
,
const
int16_t *
ref_buf
, uint32_t pitch,
int
mc_type);
277
278
/**
279
* motion compensation without adding delta
280
*
281
* @param[in,out] buf pointer to the block in the current frame receiving the result
282
* @param[in] ref_buf pointer to the corresponding block in the reference frame
283
* @param[in] pitch pitch for moving to the next y line
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* @param[in] mc_type interpolation type
285
*/
286
void
ff_ivi_mc_8x8_no_delta
(int16_t *
buf
,
const
int16_t *
ref_buf
, uint32_t pitch,
int
mc_type);
287
288
/**
289
* 4x4 block motion compensation without adding delta
290
*
291
* @param[in,out] buf pointer to the block in the current frame receiving the result
292
* @param[in] ref_buf pointer to the corresponding block in the reference frame
293
* @param[in] pitch pitch for moving to the next y line
294
* @param[in] mc_type interpolation type
295
*/
296
void
ff_ivi_mc_4x4_no_delta
(int16_t *
buf
,
const
int16_t *
ref_buf
, uint32_t pitch,
int
mc_type);
297
298
#endif
/* AVCODEC_IVI_DSP_H */
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