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| 4349 | Serge | 1 | /* |
| 2 | * DSP functions for Indeo Video Interactive codecs (Indeo4 and Indeo5) |
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| 3 | * |
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| 4 | * Copyright (c) 2009-2011 Maxim Poliakovski |
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| 5 | * |
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| 6 | * This file is part of FFmpeg. |
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| 7 | * |
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| 8 | * FFmpeg is free software; you can redistribute it and/or |
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| 9 | * modify it under the terms of the GNU Lesser General Public |
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| 10 | * License as published by the Free Software Foundation; either |
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| 11 | * version 2.1 of the License, or (at your option) any later version. |
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| 12 | * |
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| 13 | * FFmpeg is distributed in the hope that it will be useful, |
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| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 16 | * Lesser General Public License for more details. |
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| 17 | * |
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| 18 | * You should have received a copy of the GNU Lesser General Public |
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| 19 | * License along with FFmpeg; if not, write to the Free Software |
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| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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| 21 | */ |
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| 22 | |||
| 23 | /** |
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| 24 | * @file |
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| 25 | * DSP functions (inverse transforms, motion compensations, wavelet recompostion) |
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| 26 | * for Indeo Video Interactive codecs. |
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| 27 | */ |
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| 28 | |||
| 29 | #ifndef AVCODEC_IVI_DSP_H |
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| 30 | #define AVCODEC_IVI_DSP_H |
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| 31 | |||
| 32 | #include "avcodec.h" |
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| 33 | #include "ivi_common.h" |
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| 34 | |||
| 35 | /** |
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| 36 | * 5/3 wavelet recomposition filter for Indeo5 |
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| 37 | * |
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| 38 | * @param[in] plane pointer to the descriptor of the plane being processed |
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| 39 | * @param[out] dst pointer to the destination buffer |
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| 40 | * @param[in] dst_pitch pitch of the destination buffer |
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| 41 | */ |
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| 42 | void ff_ivi_recompose53(const IVIPlaneDesc *plane, uint8_t *dst, |
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| 43 | const int dst_pitch); |
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| 44 | |||
| 45 | /** |
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| 46 | * Haar wavelet recomposition filter for Indeo 4 |
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| 47 | * |
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| 48 | * @param[in] plane pointer to the descriptor of the plane being processed |
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| 49 | * @param[out] dst pointer to the destination buffer |
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| 50 | * @param[in] dst_pitch pitch of the destination buffer |
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| 51 | */ |
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| 52 | void ff_ivi_recompose_haar(const IVIPlaneDesc *plane, uint8_t *dst, |
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| 53 | const int dst_pitch); |
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| 54 | |||
| 55 | /** |
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| 56 | * two-dimensional inverse Haar 8x8 transform for Indeo 4 |
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| 57 | * |
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| 58 | * @param[in] in pointer to the vector of transform coefficients |
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| 59 | * @param[out] out pointer to the output buffer (frame) |
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| 60 | * @param[in] pitch pitch to move to the next y line |
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| 61 | * @param[in] flags pointer to the array of column flags: |
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| 62 | * != 0 - non_empty column, 0 - empty one |
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| 63 | * (this array must be filled by caller) |
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| 64 | */ |
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| 65 | void ff_ivi_inverse_haar_8x8(const int32_t *in, int16_t *out, uint32_t pitch, |
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| 66 | const uint8_t *flags); |
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| 67 | void ff_ivi_inverse_haar_8x1(const int32_t *in, int16_t *out, uint32_t pitch, |
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| 68 | const uint8_t *flags); |
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| 69 | void ff_ivi_inverse_haar_1x8(const int32_t *in, int16_t *out, uint32_t pitch, |
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| 70 | const uint8_t *flags); |
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| 71 | |||
| 72 | /** |
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| 73 | * one-dimensional inverse 8-point Haar transform on rows for Indeo 4 |
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| 74 | * |
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| 75 | * @param[in] in pointer to the vector of transform coefficients |
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| 76 | * @param[out] out pointer to the output buffer (frame) |
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| 77 | * @param[in] pitch pitch to move to the next y line |
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| 78 | * @param[in] flags pointer to the array of column flags: |
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| 79 | * != 0 - non_empty column, 0 - empty one |
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| 80 | * (this array must be filled by caller) |
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| 81 | */ |
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| 82 | void ff_ivi_row_haar8(const int32_t *in, int16_t *out, uint32_t pitch, |
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| 83 | const uint8_t *flags); |
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| 84 | |||
| 85 | /** |
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| 86 | * one-dimensional inverse 8-point Haar transform on columns for Indeo 4 |
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| 87 | * |
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| 88 | * @param[in] in pointer to the vector of transform coefficients |
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| 89 | * @param[out] out pointer to the output buffer (frame) |
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| 90 | * @param[in] pitch pitch to move to the next y line |
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| 91 | * @param[in] flags pointer to the array of column flags: |
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| 92 | * != 0 - non_empty column, 0 - empty one |
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| 93 | * (this array must be filled by caller) |
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| 94 | */ |
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| 95 | void ff_ivi_col_haar8(const int32_t *in, int16_t *out, uint32_t pitch, |
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| 96 | const uint8_t *flags); |
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| 97 | |||
| 98 | /** |
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| 99 | * two-dimensional inverse Haar 4x4 transform for Indeo 4 |
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| 100 | * |
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| 101 | * @param[in] in pointer to the vector of transform coefficients |
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| 102 | * @param[out] out pointer to the output buffer (frame) |
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| 103 | * @param[in] pitch pitch to move to the next y line |
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| 104 | * @param[in] flags pointer to the array of column flags: |
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| 105 | * != 0 - non_empty column, 0 - empty one |
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| 106 | * (this array must be filled by caller) |
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| 107 | */ |
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| 108 | void ff_ivi_inverse_haar_4x4(const int32_t *in, int16_t *out, uint32_t pitch, |
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| 109 | const uint8_t *flags); |
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| 110 | |||
| 111 | /** |
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| 112 | * one-dimensional inverse 4-point Haar transform on rows for Indeo 4 |
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| 113 | * |
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| 114 | * @param[in] in pointer to the vector of transform coefficients |
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| 115 | * @param[out] out pointer to the output buffer (frame) |
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| 116 | * @param[in] pitch pitch to move to the next y line |
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| 117 | * @param[in] flags pointer to the array of column flags: |
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| 118 | * != 0 - non_empty column, 0 - empty one |
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| 119 | * (this array must be filled by caller) |
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| 120 | */ |
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| 121 | void ff_ivi_row_haar4(const int32_t *in, int16_t *out, uint32_t pitch, |
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| 122 | const uint8_t *flags); |
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| 123 | |||
| 124 | /** |
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| 125 | * one-dimensional inverse 4-point Haar transform on columns for Indeo 4 |
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| 126 | * |
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| 127 | * @param[in] in pointer to the vector of transform coefficients |
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| 128 | * @param[out] out pointer to the output buffer (frame) |
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| 129 | * @param[in] pitch pitch to move to the next y line |
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| 130 | * @param[in] flags pointer to the array of column flags: |
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| 131 | * != 0 - non_empty column, 0 - empty one |
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| 132 | * (this array must be filled by caller) |
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| 133 | */ |
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| 134 | void ff_ivi_col_haar4(const int32_t *in, int16_t *out, uint32_t pitch, |
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| 135 | const uint8_t *flags); |
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| 136 | |||
| 137 | /** |
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| 138 | * DC-only two-dimensional inverse Haar transform for Indeo 4. |
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| 139 | * Performing the inverse transform in this case is equivalent to |
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| 140 | * spreading DC_coeff >> 3 over the whole block. |
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| 141 | * |
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| 142 | * @param[in] in pointer to the dc coefficient |
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| 143 | * @param[out] out pointer to the output buffer (frame) |
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| 144 | * @param[in] pitch pitch to move to the next y line |
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| 145 | * @param[in] blk_size transform block size |
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| 146 | */ |
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| 147 | void ff_ivi_dc_haar_2d(const int32_t *in, int16_t *out, uint32_t pitch, |
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| 148 | int blk_size); |
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| 149 | |||
| 150 | /** |
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| 151 | * two-dimensional inverse slant 8x8 transform |
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| 152 | * |
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| 153 | * @param[in] in pointer to the vector of transform coefficients |
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| 154 | * @param[out] out pointer to the output buffer (frame) |
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| 155 | * @param[in] pitch pitch to move to the next y line |
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| 156 | * @param[in] flags pointer to the array of column flags: |
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| 157 | * != 0 - non_empty column, 0 - empty one |
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| 158 | * (this array must be filled by caller) |
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| 159 | */ |
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| 160 | void ff_ivi_inverse_slant_8x8(const int32_t *in, int16_t *out, uint32_t pitch, |
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| 161 | const uint8_t *flags); |
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| 162 | |||
| 163 | /** |
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| 164 | * two-dimensional inverse slant 4x4 transform |
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| 165 | * |
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| 166 | * @param[in] in pointer to the vector of transform coefficients |
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| 167 | * @param[out] out pointer to the output buffer (frame) |
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| 168 | * @param[in] pitch pitch to move to the next y line |
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| 169 | * @param[in] flags pointer to the array of column flags: |
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| 170 | * != 0 - non_empty column, 0 - empty one |
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| 171 | * (this array must be filled by caller) |
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| 172 | */ |
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| 173 | void ff_ivi_inverse_slant_4x4(const int32_t *in, int16_t *out, uint32_t pitch, |
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| 174 | const uint8_t *flags); |
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| 175 | |||
| 176 | /** |
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| 177 | * DC-only two-dimensional inverse slant transform. |
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| 178 | * Performing the inverse slant transform in this case is equivalent to |
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| 179 | * spreading (DC_coeff + 1)/2 over the whole block. |
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| 180 | * It works much faster than performing the slant transform on a vector of zeroes. |
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| 181 | * |
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| 182 | * @param[in] in pointer to the dc coefficient |
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| 183 | * @param[out] out pointer to the output buffer (frame) |
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| 184 | * @param[in] pitch pitch to move to the next y line |
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| 185 | * @param[in] blk_size transform block size |
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| 186 | */ |
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| 187 | void ff_ivi_dc_slant_2d(const int32_t *in, int16_t *out, uint32_t pitch, int blk_size); |
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| 188 | |||
| 189 | /** |
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| 190 | * inverse 1D row slant transform |
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| 191 | * |
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| 192 | * @param[in] in pointer to the vector of transform coefficients |
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| 193 | * @param[out] out pointer to the output buffer (frame) |
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| 194 | * @param[in] pitch pitch to move to the next y line |
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| 195 | * @param[in] flags pointer to the array of column flags (unused here) |
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| 196 | */ |
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| 197 | void ff_ivi_row_slant8(const int32_t *in, int16_t *out, uint32_t pitch, |
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| 198 | const uint8_t *flags); |
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| 199 | |||
| 200 | /** |
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| 201 | * inverse 1D column slant transform |
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| 202 | * |
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| 203 | * @param[in] in pointer to the vector of transform coefficients |
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| 204 | * @param[out] out pointer to the output buffer (frame) |
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| 205 | * @param[in] pitch pitch to move to the next y line |
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| 206 | * @param[in] flags pointer to the array of column flags: |
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| 207 | * != 0 - non_empty column, 0 - empty one |
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| 208 | * (this array must be filled by caller) |
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| 209 | */ |
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| 210 | void ff_ivi_col_slant8(const int32_t *in, int16_t *out, uint32_t pitch, |
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| 211 | const uint8_t *flags); |
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| 212 | |||
| 213 | /** |
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| 214 | * inverse 1D row slant transform |
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| 215 | * |
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| 216 | * @param[in] in pointer to the vector of transform coefficients |
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| 217 | * @param[out] out pointer to the output buffer (frame) |
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| 218 | * @param[in] pitch pitch to move to the next y line |
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| 219 | * @param[in] flags pointer to the array of column flags (unused here) |
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| 220 | */ |
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| 221 | void ff_ivi_row_slant4(const int32_t *in, int16_t *out, uint32_t pitch, |
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| 222 | const uint8_t *flags); |
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| 223 | |||
| 224 | /** |
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| 225 | * inverse 1D column slant transform |
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| 226 | * |
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| 227 | * @param[in] in pointer to the vector of transform coefficients |
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| 228 | * @param[out] out pointer to the output buffer (frame) |
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| 229 | * @param[in] pitch pitch to move to the next y line |
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| 230 | * @param[in] flags pointer to the array of column flags: |
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| 231 | * != 0 - non_empty column, 0 - empty one |
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| 232 | * (this array must be filled by caller) |
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| 233 | */ |
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| 234 | void ff_ivi_col_slant4(const int32_t *in, int16_t *out, uint32_t pitch, |
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| 235 | const uint8_t *flags); |
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| 236 | |||
| 237 | /** |
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| 238 | * DC-only inverse row slant transform |
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| 239 | */ |
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| 240 | void ff_ivi_dc_row_slant(const int32_t *in, int16_t *out, uint32_t pitch, int blk_size); |
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| 241 | |||
| 242 | /** |
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| 243 | * DC-only inverse column slant transform |
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| 244 | */ |
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| 245 | void ff_ivi_dc_col_slant(const int32_t *in, int16_t *out, uint32_t pitch, int blk_size); |
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| 246 | |||
| 247 | /** |
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| 248 | * Copy the pixels into the frame buffer. |
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| 249 | */ |
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| 250 | void ff_ivi_put_pixels_8x8(const int32_t *in, int16_t *out, uint32_t pitch, const uint8_t *flags); |
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| 251 | |||
| 252 | /** |
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| 253 | * Copy the DC coefficient into the first pixel of the block and |
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| 254 | * zero all others. |
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| 255 | */ |
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| 256 | void ff_ivi_put_dc_pixel_8x8(const int32_t *in, int16_t *out, uint32_t pitch, int blk_size); |
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| 257 | |||
| 258 | /** |
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| 259 | * 8x8 block motion compensation with adding delta |
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| 260 | * |
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| 261 | * @param[in,out] buf pointer to the block in the current frame buffer containing delta |
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| 262 | * @param[in] ref_buf pointer to the corresponding block in the reference frame |
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| 263 | * @param[in] pitch pitch for moving to the next y line |
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| 264 | * @param[in] mc_type interpolation type |
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| 265 | */ |
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| 266 | void ff_ivi_mc_8x8_delta(int16_t *buf, const int16_t *ref_buf, uint32_t pitch, int mc_type); |
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| 267 | |||
| 268 | /** |
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| 269 | * 4x4 block motion compensation with adding delta |
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| 270 | * |
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| 271 | * @param[in,out] buf pointer to the block in the current frame buffer containing delta |
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| 272 | * @param[in] ref_buf pointer to the corresponding block in the reference frame |
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| 273 | * @param[in] pitch pitch for moving to the next y line |
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| 274 | * @param[in] mc_type interpolation type |
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| 275 | */ |
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| 276 | void ff_ivi_mc_4x4_delta(int16_t *buf, const int16_t *ref_buf, uint32_t pitch, int mc_type); |
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| 277 | |||
| 278 | /** |
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| 279 | * motion compensation without adding delta |
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| 280 | * |
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| 281 | * @param[in,out] buf pointer to the block in the current frame receiving the result |
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| 282 | * @param[in] ref_buf pointer to the corresponding block in the reference frame |
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| 283 | * @param[in] pitch pitch for moving to the next y line |
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| 284 | * @param[in] mc_type interpolation type |
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| 285 | */ |
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| 286 | void ff_ivi_mc_8x8_no_delta(int16_t *buf, const int16_t *ref_buf, uint32_t pitch, int mc_type); |
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| 287 | |||
| 288 | /** |
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| 289 | * 4x4 block motion compensation without adding delta |
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| 290 | * |
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| 291 | * @param[in,out] buf pointer to the block in the current frame receiving the result |
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| 292 | * @param[in] ref_buf pointer to the corresponding block in the reference frame |
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| 293 | * @param[in] pitch pitch for moving to the next y line |
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| 294 | * @param[in] mc_type interpolation type |
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| 295 | */ |
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| 296 | void ff_ivi_mc_4x4_no_delta(int16_t *buf, const int16_t *ref_buf, uint32_t pitch, int mc_type); |
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| 297 | |||
| 298 | #endif /* AVCODEC_IVI_DSP_H */ |