blob: 2704d2b9a540d5b9ed0792dc0f46d0d5c2e46514
| 1 | /* |
| 2 | * DSP functions for Indeo Video Interactive codecs (Indeo4 and Indeo5) |
| 3 | * |
| 4 | * Copyright (c) 2009-2011 Maxim Poliakovski |
| 5 | * |
| 6 | * This file is part of FFmpeg. |
| 7 | * |
| 8 | * FFmpeg is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU Lesser General Public |
| 10 | * License as published by the Free Software Foundation; either |
| 11 | * version 2.1 of the License, or (at your option) any later version. |
| 12 | * |
| 13 | * FFmpeg is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 16 | * Lesser General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU Lesser General Public |
| 19 | * License along with FFmpeg; if not, write to the Free Software |
| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 21 | */ |
| 22 | |
| 23 | /** |
| 24 | * @file |
| 25 | * DSP functions (inverse transforms, motion compensations, wavelet recomposition) |
| 26 | * for Indeo Video Interactive codecs. |
| 27 | */ |
| 28 | |
| 29 | #ifndef AVCODEC_IVI_DSP_H |
| 30 | #define AVCODEC_IVI_DSP_H |
| 31 | |
| 32 | #include <stddef.h> |
| 33 | #include <stdint.h> |
| 34 | |
| 35 | #include "ivi.h" |
| 36 | |
| 37 | /** |
| 38 | * 5/3 wavelet recomposition filter for Indeo5 |
| 39 | * |
| 40 | * @param[in] plane pointer to the descriptor of the plane being processed |
| 41 | * @param[out] dst pointer to the destination buffer |
| 42 | * @param[in] dst_pitch pitch of the destination buffer |
| 43 | */ |
| 44 | void ff_ivi_recompose53(const IVIPlaneDesc *plane, uint8_t *dst, |
| 45 | const ptrdiff_t dst_pitch); |
| 46 | |
| 47 | /** |
| 48 | * Haar wavelet recomposition filter for Indeo 4 |
| 49 | * |
| 50 | * @param[in] plane pointer to the descriptor of the plane being processed |
| 51 | * @param[out] dst pointer to the destination buffer |
| 52 | * @param[in] dst_pitch pitch of the destination buffer |
| 53 | */ |
| 54 | void ff_ivi_recompose_haar(const IVIPlaneDesc *plane, uint8_t *dst, |
| 55 | const ptrdiff_t dst_pitch); |
| 56 | |
| 57 | /** |
| 58 | * two-dimensional inverse Haar 8x8 transform for Indeo 4 |
| 59 | * |
| 60 | * @param[in] in pointer to the vector of transform coefficients |
| 61 | * @param[out] out pointer to the output buffer (frame) |
| 62 | * @param[in] pitch pitch to move to the next y line |
| 63 | * @param[in] flags pointer to the array of column flags: |
| 64 | * != 0 - non_empty column, 0 - empty one |
| 65 | * (this array must be filled by caller) |
| 66 | */ |
| 67 | void ff_ivi_inverse_haar_8x8(const int32_t *in, int16_t *out, ptrdiff_t pitch, |
| 68 | const uint8_t *flags); |
| 69 | void ff_ivi_inverse_haar_8x1(const int32_t *in, int16_t *out, uint32_t pitch, |
| 70 | const uint8_t *flags); |
| 71 | void ff_ivi_inverse_haar_1x8(const int32_t *in, int16_t *out, uint32_t pitch, |
| 72 | const uint8_t *flags); |
| 73 | |
| 74 | /** |
| 75 | * one-dimensional inverse 8-point Haar transform on rows for Indeo 4 |
| 76 | * |
| 77 | * @param[in] in pointer to the vector of transform coefficients |
| 78 | * @param[out] out pointer to the output buffer (frame) |
| 79 | * @param[in] pitch pitch to move to the next y line |
| 80 | * @param[in] flags pointer to the array of column flags: |
| 81 | * != 0 - non_empty column, 0 - empty one |
| 82 | * (this array must be filled by caller) |
| 83 | */ |
| 84 | void ff_ivi_row_haar8(const int32_t *in, int16_t *out, ptrdiff_t pitch, |
| 85 | const uint8_t *flags); |
| 86 | |
| 87 | /** |
| 88 | * one-dimensional inverse 8-point Haar transform on columns for Indeo 4 |
| 89 | * |
| 90 | * @param[in] in pointer to the vector of transform coefficients |
| 91 | * @param[out] out pointer to the output buffer (frame) |
| 92 | * @param[in] pitch pitch to move to the next y line |
| 93 | * @param[in] flags pointer to the array of column flags: |
| 94 | * != 0 - non_empty column, 0 - empty one |
| 95 | * (this array must be filled by caller) |
| 96 | */ |
| 97 | void ff_ivi_col_haar8(const int32_t *in, int16_t *out, ptrdiff_t pitch, |
| 98 | const uint8_t *flags); |
| 99 | |
| 100 | /** |
| 101 | * two-dimensional inverse Haar 4x4 transform for Indeo 4 |
| 102 | * |
| 103 | * @param[in] in pointer to the vector of transform coefficients |
| 104 | * @param[out] out pointer to the output buffer (frame) |
| 105 | * @param[in] pitch pitch to move to the next y line |
| 106 | * @param[in] flags pointer to the array of column flags: |
| 107 | * != 0 - non_empty column, 0 - empty one |
| 108 | * (this array must be filled by caller) |
| 109 | */ |
| 110 | void ff_ivi_inverse_haar_4x4(const int32_t *in, int16_t *out, ptrdiff_t pitch, |
| 111 | const uint8_t *flags); |
| 112 | |
| 113 | /** |
| 114 | * one-dimensional inverse 4-point Haar transform on rows for Indeo 4 |
| 115 | * |
| 116 | * @param[in] in pointer to the vector of transform coefficients |
| 117 | * @param[out] out pointer to the output buffer (frame) |
| 118 | * @param[in] pitch pitch to move to the next y line |
| 119 | * @param[in] flags pointer to the array of column flags: |
| 120 | * != 0 - non_empty column, 0 - empty one |
| 121 | * (this array must be filled by caller) |
| 122 | */ |
| 123 | void ff_ivi_row_haar4(const int32_t *in, int16_t *out, ptrdiff_t pitch, |
| 124 | const uint8_t *flags); |
| 125 | |
| 126 | /** |
| 127 | * one-dimensional inverse 4-point Haar transform on columns for Indeo 4 |
| 128 | * |
| 129 | * @param[in] in pointer to the vector of transform coefficients |
| 130 | * @param[out] out pointer to the output buffer (frame) |
| 131 | * @param[in] pitch pitch to move to the next y line |
| 132 | * @param[in] flags pointer to the array of column flags: |
| 133 | * != 0 - non_empty column, 0 - empty one |
| 134 | * (this array must be filled by caller) |
| 135 | */ |
| 136 | void ff_ivi_col_haar4(const int32_t *in, int16_t *out, ptrdiff_t pitch, |
| 137 | const uint8_t *flags); |
| 138 | |
| 139 | /** |
| 140 | * DC-only two-dimensional inverse Haar transform for Indeo 4. |
| 141 | * Performing the inverse transform in this case is equivalent to |
| 142 | * spreading DC_coeff >> 3 over the whole block. |
| 143 | * |
| 144 | * @param[in] in pointer to the dc coefficient |
| 145 | * @param[out] out pointer to the output buffer (frame) |
| 146 | * @param[in] pitch pitch to move to the next y line |
| 147 | * @param[in] blk_size transform block size |
| 148 | */ |
| 149 | void ff_ivi_dc_haar_2d(const int32_t *in, int16_t *out, ptrdiff_t pitch, |
| 150 | int blk_size); |
| 151 | |
| 152 | /** |
| 153 | * two-dimensional inverse slant 8x8 transform |
| 154 | * |
| 155 | * @param[in] in pointer to the vector of transform coefficients |
| 156 | * @param[out] out pointer to the output buffer (frame) |
| 157 | * @param[in] pitch pitch to move to the next y line |
| 158 | * @param[in] flags pointer to the array of column flags: |
| 159 | * != 0 - non_empty column, 0 - empty one |
| 160 | * (this array must be filled by caller) |
| 161 | */ |
| 162 | void ff_ivi_inverse_slant_8x8(const int32_t *in, int16_t *out, ptrdiff_t pitch, |
| 163 | const uint8_t *flags); |
| 164 | |
| 165 | /** |
| 166 | * two-dimensional inverse slant 4x4 transform |
| 167 | * |
| 168 | * @param[in] in pointer to the vector of transform coefficients |
| 169 | * @param[out] out pointer to the output buffer (frame) |
| 170 | * @param[in] pitch pitch to move to the next y line |
| 171 | * @param[in] flags pointer to the array of column flags: |
| 172 | * != 0 - non_empty column, 0 - empty one |
| 173 | * (this array must be filled by caller) |
| 174 | */ |
| 175 | void ff_ivi_inverse_slant_4x4(const int32_t *in, int16_t *out, ptrdiff_t pitch, |
| 176 | const uint8_t *flags); |
| 177 | |
| 178 | /** |
| 179 | * DC-only two-dimensional inverse slant transform. |
| 180 | * Performing the inverse slant transform in this case is equivalent to |
| 181 | * spreading (DC_coeff + 1)/2 over the whole block. |
| 182 | * It works much faster than performing the slant transform on a vector of zeroes. |
| 183 | * |
| 184 | * @param[in] in pointer to the dc coefficient |
| 185 | * @param[out] out pointer to the output buffer (frame) |
| 186 | * @param[in] pitch pitch to move to the next y line |
| 187 | * @param[in] blk_size transform block size |
| 188 | */ |
| 189 | void ff_ivi_dc_slant_2d(const int32_t *in, int16_t *out, ptrdiff_t pitch, int blk_size); |
| 190 | |
| 191 | /** |
| 192 | * inverse 1D row slant transform |
| 193 | * |
| 194 | * @param[in] in pointer to the vector of transform coefficients |
| 195 | * @param[out] out pointer to the output buffer (frame) |
| 196 | * @param[in] pitch pitch to move to the next y line |
| 197 | * @param[in] flags pointer to the array of column flags (unused here) |
| 198 | */ |
| 199 | void ff_ivi_row_slant8(const int32_t *in, int16_t *out, ptrdiff_t pitch, |
| 200 | const uint8_t *flags); |
| 201 | |
| 202 | /** |
| 203 | * inverse 1D column slant transform |
| 204 | * |
| 205 | * @param[in] in pointer to the vector of transform coefficients |
| 206 | * @param[out] out pointer to the output buffer (frame) |
| 207 | * @param[in] pitch pitch to move to the next y line |
| 208 | * @param[in] flags pointer to the array of column flags: |
| 209 | * != 0 - non_empty column, 0 - empty one |
| 210 | * (this array must be filled by caller) |
| 211 | */ |
| 212 | void ff_ivi_col_slant8(const int32_t *in, int16_t *out, ptrdiff_t pitch, |
| 213 | const uint8_t *flags); |
| 214 | |
| 215 | /** |
| 216 | * inverse 1D row slant transform |
| 217 | * |
| 218 | * @param[in] in pointer to the vector of transform coefficients |
| 219 | * @param[out] out pointer to the output buffer (frame) |
| 220 | * @param[in] pitch pitch to move to the next y line |
| 221 | * @param[in] flags pointer to the array of column flags (unused here) |
| 222 | */ |
| 223 | void ff_ivi_row_slant4(const int32_t *in, int16_t *out, ptrdiff_t pitch, |
| 224 | const uint8_t *flags); |
| 225 | |
| 226 | /** |
| 227 | * inverse 1D column slant transform |
| 228 | * |
| 229 | * @param[in] in pointer to the vector of transform coefficients |
| 230 | * @param[out] out pointer to the output buffer (frame) |
| 231 | * @param[in] pitch pitch to move to the next y line |
| 232 | * @param[in] flags pointer to the array of column flags: |
| 233 | * != 0 - non_empty column, 0 - empty one |
| 234 | * (this array must be filled by caller) |
| 235 | */ |
| 236 | void ff_ivi_col_slant4(const int32_t *in, int16_t *out, ptrdiff_t pitch, |
| 237 | const uint8_t *flags); |
| 238 | |
| 239 | /** |
| 240 | * DC-only inverse row slant transform |
| 241 | */ |
| 242 | void ff_ivi_dc_row_slant(const int32_t *in, int16_t *out, ptrdiff_t pitch, int blk_size); |
| 243 | |
| 244 | /** |
| 245 | * DC-only inverse column slant transform |
| 246 | */ |
| 247 | void ff_ivi_dc_col_slant(const int32_t *in, int16_t *out, ptrdiff_t pitch, int blk_size); |
| 248 | |
| 249 | /** |
| 250 | * Copy the pixels into the frame buffer. |
| 251 | */ |
| 252 | void ff_ivi_put_pixels_8x8(const int32_t *in, int16_t *out, ptrdiff_t pitch, const uint8_t *flags); |
| 253 | |
| 254 | /** |
| 255 | * Copy the DC coefficient into the first pixel of the block and |
| 256 | * zero all others. |
| 257 | */ |
| 258 | void ff_ivi_put_dc_pixel_8x8(const int32_t *in, int16_t *out, ptrdiff_t pitch, int blk_size); |
| 259 | |
| 260 | /** |
| 261 | * 8x8 block motion compensation with adding delta |
| 262 | * |
| 263 | * @param[in,out] buf pointer to the block in the current frame buffer containing delta |
| 264 | * @param[in] ref_buf pointer to the corresponding block in the reference frame |
| 265 | * @param[in] pitch pitch for moving to the next y line |
| 266 | * @param[in] mc_type interpolation type |
| 267 | */ |
| 268 | void ff_ivi_mc_8x8_delta(int16_t *buf, const int16_t *ref_buf, ptrdiff_t pitch, int mc_type); |
| 269 | |
| 270 | /** |
| 271 | * 4x4 block motion compensation with adding delta |
| 272 | * |
| 273 | * @param[in,out] buf pointer to the block in the current frame buffer containing delta |
| 274 | * @param[in] ref_buf pointer to the corresponding block in the reference frame |
| 275 | * @param[in] pitch pitch for moving to the next y line |
| 276 | * @param[in] mc_type interpolation type |
| 277 | */ |
| 278 | void ff_ivi_mc_4x4_delta(int16_t *buf, const int16_t *ref_buf, ptrdiff_t pitch, int mc_type); |
| 279 | |
| 280 | /** |
| 281 | * motion compensation without adding delta |
| 282 | * |
| 283 | * @param[in,out] buf pointer to the block in the current frame receiving the result |
| 284 | * @param[in] ref_buf pointer to the corresponding block in the reference frame |
| 285 | * @param[in] pitch pitch for moving to the next y line |
| 286 | * @param[in] mc_type interpolation type |
| 287 | */ |
| 288 | void ff_ivi_mc_8x8_no_delta(int16_t *buf, const int16_t *ref_buf, ptrdiff_t pitch, int mc_type); |
| 289 | |
| 290 | /** |
| 291 | * 4x4 block motion compensation without adding delta |
| 292 | * |
| 293 | * @param[in,out] buf pointer to the block in the current frame receiving the result |
| 294 | * @param[in] ref_buf pointer to the corresponding block in the reference frame |
| 295 | * @param[in] pitch pitch for moving to the next y line |
| 296 | * @param[in] mc_type interpolation type |
| 297 | */ |
| 298 | void ff_ivi_mc_4x4_no_delta(int16_t *buf, const int16_t *ref_buf, ptrdiff_t pitch, int mc_type); |
| 299 | |
| 300 | /** |
| 301 | * 8x8 block motion compensation with adding delta |
| 302 | * |
| 303 | * @param[in,out] buf pointer to the block in the current frame buffer containing delta |
| 304 | * @param[in] ref_buf pointer to the corresponding block in the backward reference frame |
| 305 | * @param[in] ref_buf2 pointer to the corresponding block in the forward reference frame |
| 306 | * @param[in] pitch pitch for moving to the next y line |
| 307 | * @param[in] mc_type interpolation type for backward reference |
| 308 | * @param[in] mc_type2 interpolation type for forward reference |
| 309 | */ |
| 310 | void ff_ivi_mc_avg_8x8_delta(int16_t *buf, const int16_t *ref_buf, const int16_t *ref_buf2, ptrdiff_t pitch, int mc_type, int mc_type2); |
| 311 | |
| 312 | /** |
| 313 | * 4x4 block motion compensation with adding delta |
| 314 | * |
| 315 | * @param[in,out] buf pointer to the block in the current frame buffer containing delta |
| 316 | * @param[in] ref_buf pointer to the corresponding block in the backward reference frame |
| 317 | * @param[in] ref_buf2 pointer to the corresponding block in the forward reference frame |
| 318 | * @param[in] pitch pitch for moving to the next y line |
| 319 | * @param[in] mc_type interpolation type for backward reference |
| 320 | * @param[in] mc_type2 interpolation type for forward reference |
| 321 | */ |
| 322 | void ff_ivi_mc_avg_4x4_delta(int16_t *buf, const int16_t *ref_buf, const int16_t *ref_buf2, ptrdiff_t pitch, int mc_type, int mc_type2); |
| 323 | |
| 324 | /** |
| 325 | * motion compensation without adding delta for B-frames |
| 326 | * |
| 327 | * @param[in,out] buf pointer to the block in the current frame receiving the result |
| 328 | * @param[in] ref_buf pointer to the corresponding block in the backward reference frame |
| 329 | * @param[in] ref_buf2 pointer to the corresponding block in the forward reference frame |
| 330 | * @param[in] pitch pitch for moving to the next y line |
| 331 | * @param[in] mc_type interpolation type for backward reference |
| 332 | * @param[in] mc_type2 interpolation type for forward reference |
| 333 | */ |
| 334 | void ff_ivi_mc_avg_8x8_no_delta(int16_t *buf, const int16_t *ref_buf, const int16_t *ref_buf2, ptrdiff_t pitch, int mc_type, int mc_type2); |
| 335 | |
| 336 | /** |
| 337 | * 4x4 block motion compensation without adding delta for B-frames |
| 338 | * |
| 339 | * @param[in,out] buf pointer to the block in the current frame receiving the result |
| 340 | * @param[in] ref_buf pointer to the corresponding block in the backward reference frame |
| 341 | * @param[in] ref_buf2 pointer to the corresponding block in the forward reference frame |
| 342 | * @param[in] pitch pitch for moving to the next y line |
| 343 | * @param[in] mc_type interpolation type for backward reference |
| 344 | * @param[in] mc_type2 interpolation type for forward reference |
| 345 | */ |
| 346 | void ff_ivi_mc_avg_4x4_no_delta(int16_t *buf, const int16_t *ref_buf, const int16_t *ref_buf2, ptrdiff_t pitch, int mc_type, int mc_type2); |
| 347 | |
| 348 | #endif /* AVCODEC_IVI_DSP_H */ |
| 349 |