repositories / deb_ffmpeg.git / blame
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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 recompostion) | |
| 26 | * for Indeo Video Interactive codecs. | |
| 27 | */ | |
| 28 | ||
| 29 | #ifndef AVCODEC_IVI_DSP_H | |
| 30 | #define AVCODEC_IVI_DSP_H | |
| 31 | ||
| 32 | #include "avcodec.h" | |
| 33 | #include "ivi_common.h" | |
| 34 | ||
| 35 | /** | |
| 36 | * 5/3 wavelet recomposition filter for Indeo5 | |
| 37 | * | |
| 38 | * @param[in] plane pointer to the descriptor of the plane being processed | |
| 39 | * @param[out] dst pointer to the destination buffer | |
| 40 | * @param[in] dst_pitch pitch of the destination buffer | |
| 41 | */ | |
| 42 | void ff_ivi_recompose53(const IVIPlaneDesc *plane, uint8_t *dst, | |
| 43 | const int dst_pitch); | |
| 44 | ||
| 45 | /** | |
| 46 | * Haar wavelet recomposition filter for Indeo 4 | |
| 47 | * | |
| 48 | * @param[in] plane pointer to the descriptor of the plane being processed | |
| 49 | * @param[out] dst pointer to the destination buffer | |
| 50 | * @param[in] dst_pitch pitch of the destination buffer | |
| 51 | */ | |
| 52 | void ff_ivi_recompose_haar(const IVIPlaneDesc *plane, uint8_t *dst, | |
| 53 | const int dst_pitch); | |
| 54 | ||
| 55 | /** | |
| 56 | * two-dimensional inverse Haar 8x8 transform for Indeo 4 | |
| 57 | * | |
| 58 | * @param[in] in pointer to the vector of transform coefficients | |
| 59 | * @param[out] out pointer to the output buffer (frame) | |
| 60 | * @param[in] pitch pitch to move to the next y line | |
| 61 | * @param[in] flags pointer to the array of column flags: | |
| 62 | * != 0 - non_empty column, 0 - empty one | |
| 63 | * (this array must be filled by caller) | |
| 64 | */ | |
| 65 | void ff_ivi_inverse_haar_8x8(const int32_t *in, int16_t *out, uint32_t pitch, | |
| 66 | const uint8_t *flags); | |
| 67 | void ff_ivi_inverse_haar_8x1(const int32_t *in, int16_t *out, uint32_t pitch, | |
| 68 | const uint8_t *flags); | |
| 69 | void ff_ivi_inverse_haar_1x8(const int32_t *in, int16_t *out, uint32_t pitch, | |
| 70 | const uint8_t *flags); | |
| 71 | ||
| 72 | /** | |
| 73 | * one-dimensional inverse 8-point Haar transform on rows for Indeo 4 | |
| 74 | * | |
| 75 | * @param[in] in pointer to the vector of transform coefficients | |
| 76 | * @param[out] out pointer to the output buffer (frame) | |
| 77 | * @param[in] pitch pitch to move to the next y line | |
| 78 | * @param[in] flags pointer to the array of column flags: | |
| 79 | * != 0 - non_empty column, 0 - empty one | |
| 80 | * (this array must be filled by caller) | |
| 81 | */ | |
| 82 | void ff_ivi_row_haar8(const int32_t *in, int16_t *out, uint32_t pitch, | |
| 83 | const uint8_t *flags); | |
| 84 | ||
| 85 | /** | |
| 86 | * one-dimensional inverse 8-point Haar transform on columns for Indeo 4 | |
| 87 | * | |
| 88 | * @param[in] in pointer to the vector of transform coefficients | |
| 89 | * @param[out] out pointer to the output buffer (frame) | |
| 90 | * @param[in] pitch pitch to move to the next y line | |
| 91 | * @param[in] flags pointer to the array of column flags: | |
| 92 | * != 0 - non_empty column, 0 - empty one | |
| 93 | * (this array must be filled by caller) | |
| 94 | */ | |
| 95 | void ff_ivi_col_haar8(const int32_t *in, int16_t *out, uint32_t pitch, | |
| 96 | const uint8_t *flags); | |
| 97 | ||
| 98 | /** | |
| 99 | * two-dimensional inverse Haar 4x4 transform for Indeo 4 | |
| 100 | * | |
| 101 | * @param[in] in pointer to the vector of transform coefficients | |
| 102 | * @param[out] out pointer to the output buffer (frame) | |
| 103 | * @param[in] pitch pitch to move to the next y line | |
| 104 | * @param[in] flags pointer to the array of column flags: | |
| 105 | * != 0 - non_empty column, 0 - empty one | |
| 106 | * (this array must be filled by caller) | |
| 107 | */ | |
| 108 | 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 | |
| 113 | * | |
| 114 | * @param[in] in pointer to the vector of transform coefficients | |
| 115 | * @param[out] out pointer to the output buffer (frame) | |
| 116 | * @param[in] pitch pitch to move to the next y line | |
| 117 | * @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 | |
| 132 | * (this array must be filled by caller) | |
| 133 | */ | |
| 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 | * | |
| 142 | * @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 | |
| 145 | * @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 | * | |
| 166 | * @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 | |
| 171 | * (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 | /** | |
| 177 | * DC-only two-dimensional inverse slant transform. | |
| 178 | * Performing the inverse slant transform in this case is equivalent to | |
| 179 | * spreading (DC_coeff + 1)/2 over the whole block. | |
| 180 | * It works much faster than performing the slant transform on a vector of zeroes. | |
| 181 | * | |
| 182 | * @param[in] in pointer to the dc coefficient | |
| 183 | * @param[out] out pointer to the output buffer (frame) | |
| 184 | * @param[in] pitch pitch to move to the next y line | |
| 185 | * @param[in] blk_size transform block size | |
| 186 | */ | |
| 187 | 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 | |
| 191 | * | |
| 192 | * @param[in] in pointer to the vector of transform coefficients | |
| 193 | * @param[out] out pointer to the output buffer (frame) | |
| 194 | * @param[in] pitch pitch to move to the next y line | |
| 195 | * @param[in] flags pointer to the array of column flags (unused here) | |
| 196 | */ | |
| 197 | void ff_ivi_row_slant8(const int32_t *in, int16_t *out, uint32_t pitch, | |
| 198 | const uint8_t *flags); | |
| 199 | ||
| 200 | /** | |
| 201 | * inverse 1D column slant transform | |
| 202 | * | |
| 203 | * @param[in] in pointer to the vector of transform coefficients | |
| 204 | * @param[out] out pointer to the output buffer (frame) | |
| 205 | * @param[in] pitch pitch to move to the next y line | |
| 206 | * @param[in] flags pointer to the array of column flags: | |
| 207 | * != 0 - non_empty column, 0 - empty one | |
| 208 | * (this array must be filled by caller) | |
| 209 | */ | |
| 210 | 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) | |
| 218 | * @param[in] pitch pitch to move to the next y line | |
| 219 | * @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 | * | |
| 227 | * @param[in] in pointer to the vector of transform coefficients | |
| 228 | * @param[out] out pointer to the output buffer (frame) | |
| 229 | * @param[in] pitch pitch to move to the next y line | |
| 230 | * @param[in] flags pointer to the array of column flags: | |
| 231 | * != 0 - non_empty column, 0 - empty one | |
| 232 | * (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 | */ | |
| 245 | 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 | * | |
| 261 | * @param[in,out] buf pointer to the block in the current frame buffer containing delta | |
| 262 | * @param[in] ref_buf pointer to the corresponding block in the reference frame | |
| 263 | * @param[in] pitch pitch for moving to the next y line | |
| 264 | * @param[in] mc_type interpolation type | |
| 265 | */ | |
| 266 | void ff_ivi_mc_8x8_delta(int16_t *buf, const int16_t *ref_buf, uint32_t pitch, int mc_type); | |
| 267 | ||
| 268 | /** | |
| 269 | * 4x4 block motion compensation with adding delta | |
| 270 | * | |
| 271 | * @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 | |
| 284 | * @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 | /** | |
| 299 | * 8x8 block motion compensation with adding delta | |
| 300 | * | |
| 301 | * @param[in,out] buf pointer to the block in the current frame buffer containing delta | |
| 302 | * @param[in] ref_buf pointer to the corresponding block in the backward reference frame | |
| 303 | * @param[in] ref_buf2 pointer to the corresponding block in the forward reference frame | |
| 304 | * @param[in] pitch pitch for moving to the next y line | |
| 305 | * @param[in] mc_type interpolation type for backward reference | |
| 306 | * @param[in] mc_type2 interpolation type for forward reference | |
| 307 | */ | |
| 308 | void ff_ivi_mc_avg_8x8_delta(int16_t *buf, const int16_t *ref_buf, const int16_t *ref_buf2, uint32_t pitch, int mc_type, int mc_type2); | |
| 309 | ||
| 310 | /** | |
| 311 | * 4x4 block motion compensation with adding delta | |
| 312 | * | |
| 313 | * @param[in,out] buf pointer to the block in the current frame buffer containing delta | |
| 314 | * @param[in] ref_buf pointer to the corresponding block in the backward reference frame | |
| 315 | * @param[in] ref_buf2 pointer to the corresponding block in the forward reference frame | |
| 316 | * @param[in] pitch pitch for moving to the next y line | |
| 317 | * @param[in] mc_type interpolation type for backward reference | |
| 318 | * @param[in] mc_type2 interpolation type for forward reference | |
| 319 | */ | |
| 320 | void ff_ivi_mc_avg_4x4_delta(int16_t *buf, const int16_t *ref_buf, const int16_t *ref_buf2, uint32_t pitch, int mc_type, int mc_type2); | |
| 321 | ||
| 322 | /** | |
| 323 | * motion compensation without adding delta for B-frames | |
| 324 | * | |
| 325 | * @param[in,out] buf pointer to the block in the current frame receiving the result | |
| 326 | * @param[in] ref_buf pointer to the corresponding block in the backward reference frame | |
| 327 | * @param[in] ref_buf2 pointer to the corresponding block in the forward reference frame | |
| 328 | * @param[in] pitch pitch for moving to the next y line | |
| 329 | * @param[in] mc_type interpolation type for backward reference | |
| 330 | * @param[in] mc_type2 interpolation type for forward reference | |
| 331 | */ | |
| 332 | void ff_ivi_mc_avg_8x8_no_delta(int16_t *buf, const int16_t *ref_buf, const int16_t *ref_buf2, uint32_t pitch, int mc_type, int mc_type2); | |
| 333 | ||
| 334 | /** | |
| 335 | * 4x4 block motion compensation without adding delta for B-frames | |
| 336 | * | |
| 337 | * @param[in,out] buf pointer to the block in the current frame receiving the result | |
| 338 | * @param[in] ref_buf pointer to the corresponding block in the backward reference frame | |
| 339 | * @param[in] ref_buf2 pointer to the corresponding block in the forward reference frame | |
| 340 | * @param[in] pitch pitch for moving to the next y line | |
| 341 | * @param[in] mc_type interpolation type for backward reference | |
| 342 | * @param[in] mc_type2 interpolation type for forward reference | |
| 343 | */ | |
| 344 | void ff_ivi_mc_avg_4x4_no_delta(int16_t *buf, const int16_t *ref_buf, const int16_t *ref_buf2, uint32_t pitch, int mc_type, int mc_type2); | |
| 345 | ||
| 346 | #endif /* AVCODEC_IVI_DSP_H */ |