| 1 | /* |
| 2 | * huffyuv decoder |
| 3 | * |
| 4 | * Copyright (c) 2002-2014 Michael Niedermayer <michaelni@gmx.at> |
| 5 | * |
| 6 | * see http://www.pcisys.net/~melanson/codecs/huffyuv.txt for a description of |
| 7 | * the algorithm used |
| 8 | * |
| 9 | * This file is part of FFmpeg. |
| 10 | * |
| 11 | * FFmpeg is free software; you can redistribute it and/or |
| 12 | * modify it under the terms of the GNU Lesser General Public |
| 13 | * License as published by the Free Software Foundation; either |
| 14 | * version 2.1 of the License, or (at your option) any later version. |
| 15 | * |
| 16 | * FFmpeg is distributed in the hope that it will be useful, |
| 17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 19 | * Lesser General Public License for more details. |
| 20 | * |
| 21 | * You should have received a copy of the GNU Lesser General Public |
| 22 | * License along with FFmpeg; if not, write to the Free Software |
| 23 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 24 | * |
| 25 | * yuva, gray, 4:4:4, 4:1:1, 4:1:0 and >8 bit per sample support sponsored by NOA |
| 26 | */ |
| 27 | |
| 28 | /** |
| 29 | * @file |
| 30 | * huffyuv decoder |
| 31 | */ |
| 32 | |
| 33 | #define UNCHECKED_BITSTREAM_READER 1 |
| 34 | |
| 35 | #include "avcodec.h" |
| 36 | #include "get_bits.h" |
| 37 | #include "huffyuv.h" |
| 38 | #include "huffyuvdsp.h" |
| 39 | #include "thread.h" |
| 40 | #include "libavutil/pixdesc.h" |
| 41 | |
| 42 | #define classic_shift_luma_table_size 42 |
| 43 | static const unsigned char classic_shift_luma[classic_shift_luma_table_size + FF_INPUT_BUFFER_PADDING_SIZE] = { |
| 44 | 34, 36, 35, 69, 135, 232, 9, 16, 10, 24, 11, 23, 12, 16, 13, 10, |
| 45 | 14, 8, 15, 8, 16, 8, 17, 20, 16, 10, 207, 206, 205, 236, 11, 8, |
| 46 | 10, 21, 9, 23, 8, 8, 199, 70, 69, 68, 0, |
| 47 | 0,0,0,0,0,0,0,0, |
| 48 | }; |
| 49 | |
| 50 | #define classic_shift_chroma_table_size 59 |
| 51 | static const unsigned char classic_shift_chroma[classic_shift_chroma_table_size + FF_INPUT_BUFFER_PADDING_SIZE] = { |
| 52 | 66, 36, 37, 38, 39, 40, 41, 75, 76, 77, 110, 239, 144, 81, 82, 83, |
| 53 | 84, 85, 118, 183, 56, 57, 88, 89, 56, 89, 154, 57, 58, 57, 26, 141, |
| 54 | 57, 56, 58, 57, 58, 57, 184, 119, 214, 245, 116, 83, 82, 49, 80, 79, |
| 55 | 78, 77, 44, 75, 41, 40, 39, 38, 37, 36, 34, 0, |
| 56 | 0,0,0,0,0,0,0,0, |
| 57 | }; |
| 58 | |
| 59 | static const unsigned char classic_add_luma[256] = { |
| 60 | 3, 9, 5, 12, 10, 35, 32, 29, 27, 50, 48, 45, 44, 41, 39, 37, |
| 61 | 73, 70, 68, 65, 64, 61, 58, 56, 53, 50, 49, 46, 44, 41, 38, 36, |
| 62 | 68, 65, 63, 61, 58, 55, 53, 51, 48, 46, 45, 43, 41, 39, 38, 36, |
| 63 | 35, 33, 32, 30, 29, 27, 26, 25, 48, 47, 46, 44, 43, 41, 40, 39, |
| 64 | 37, 36, 35, 34, 32, 31, 30, 28, 27, 26, 24, 23, 22, 20, 19, 37, |
| 65 | 35, 34, 33, 31, 30, 29, 27, 26, 24, 23, 21, 20, 18, 17, 15, 29, |
| 66 | 27, 26, 24, 22, 21, 19, 17, 16, 14, 26, 25, 23, 21, 19, 18, 16, |
| 67 | 15, 27, 25, 23, 21, 19, 17, 16, 14, 26, 25, 23, 21, 18, 17, 14, |
| 68 | 12, 17, 19, 13, 4, 9, 2, 11, 1, 7, 8, 0, 16, 3, 14, 6, |
| 69 | 12, 10, 5, 15, 18, 11, 10, 13, 15, 16, 19, 20, 22, 24, 27, 15, |
| 70 | 18, 20, 22, 24, 26, 14, 17, 20, 22, 24, 27, 15, 18, 20, 23, 25, |
| 71 | 28, 16, 19, 22, 25, 28, 32, 36, 21, 25, 29, 33, 38, 42, 45, 49, |
| 72 | 28, 31, 34, 37, 40, 42, 44, 47, 49, 50, 52, 54, 56, 57, 59, 60, |
| 73 | 62, 64, 66, 67, 69, 35, 37, 39, 40, 42, 43, 45, 47, 48, 51, 52, |
| 74 | 54, 55, 57, 59, 60, 62, 63, 66, 67, 69, 71, 72, 38, 40, 42, 43, |
| 75 | 46, 47, 49, 51, 26, 28, 30, 31, 33, 34, 18, 19, 11, 13, 7, 8, |
| 76 | }; |
| 77 | |
| 78 | static const unsigned char classic_add_chroma[256] = { |
| 79 | 3, 1, 2, 2, 2, 2, 3, 3, 7, 5, 7, 5, 8, 6, 11, 9, |
| 80 | 7, 13, 11, 10, 9, 8, 7, 5, 9, 7, 6, 4, 7, 5, 8, 7, |
| 81 | 11, 8, 13, 11, 19, 15, 22, 23, 20, 33, 32, 28, 27, 29, 51, 77, |
| 82 | 43, 45, 76, 81, 46, 82, 75, 55, 56, 144, 58, 80, 60, 74, 147, 63, |
| 83 | 143, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, |
| 84 | 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 27, 30, 21, 22, |
| 85 | 17, 14, 5, 6, 100, 54, 47, 50, 51, 53, 106, 107, 108, 109, 110, 111, |
| 86 | 112, 113, 114, 115, 4, 117, 118, 92, 94, 121, 122, 3, 124, 103, 2, 1, |
| 87 | 0, 129, 130, 131, 120, 119, 126, 125, 136, 137, 138, 139, 140, 141, 142, 134, |
| 88 | 135, 132, 133, 104, 64, 101, 62, 57, 102, 95, 93, 59, 61, 28, 97, 96, |
| 89 | 52, 49, 48, 29, 32, 25, 24, 46, 23, 98, 45, 44, 43, 20, 42, 41, |
| 90 | 19, 18, 99, 40, 15, 39, 38, 16, 13, 12, 11, 37, 10, 9, 8, 36, |
| 91 | 7, 128, 127, 105, 123, 116, 35, 34, 33, 145, 31, 79, 42, 146, 78, 26, |
| 92 | 83, 48, 49, 50, 44, 47, 26, 31, 30, 18, 17, 19, 21, 24, 25, 13, |
| 93 | 14, 16, 17, 18, 20, 21, 12, 14, 15, 9, 10, 6, 9, 6, 5, 8, |
| 94 | 6, 12, 8, 10, 7, 9, 6, 4, 6, 2, 2, 3, 3, 3, 3, 2, |
| 95 | }; |
| 96 | |
| 97 | static int read_len_table(uint8_t *dst, GetBitContext *gb, int n) |
| 98 | { |
| 99 | int i, val, repeat; |
| 100 | |
| 101 | for (i = 0; i < n;) { |
| 102 | repeat = get_bits(gb, 3); |
| 103 | val = get_bits(gb, 5); |
| 104 | if (repeat == 0) |
| 105 | repeat = get_bits(gb, 8); |
| 106 | if (i + repeat > n || get_bits_left(gb) < 0) { |
| 107 | av_log(NULL, AV_LOG_ERROR, "Error reading huffman table\n"); |
| 108 | return AVERROR_INVALIDDATA; |
| 109 | } |
| 110 | while (repeat--) |
| 111 | dst[i++] = val; |
| 112 | } |
| 113 | return 0; |
| 114 | } |
| 115 | |
| 116 | static int generate_joint_tables(HYuvContext *s) |
| 117 | { |
| 118 | int ret; |
| 119 | uint16_t *symbols = av_mallocz(5 << VLC_BITS); |
| 120 | uint16_t *bits; |
| 121 | uint8_t *len; |
| 122 | if (!symbols) |
| 123 | return AVERROR(ENOMEM); |
| 124 | bits = symbols + (1 << VLC_BITS); |
| 125 | len = (uint8_t *)(bits + (1 << VLC_BITS)); |
| 126 | |
| 127 | if (s->bitstream_bpp < 24 || s->version > 2) { |
| 128 | int p, i, y, u; |
| 129 | for (p = 0; p < 4; p++) { |
| 130 | int p0 = s->version > 2 ? p : 0; |
| 131 | for (i = y = 0; y < s->vlc_n; y++) { |
| 132 | int len0 = s->len[p0][y]; |
| 133 | int limit = VLC_BITS - len0; |
| 134 | if (limit <= 0 || !len0) |
| 135 | continue; |
| 136 | if ((sign_extend(y, 8) & (s->vlc_n-1)) != y) |
| 137 | continue; |
| 138 | for (u = 0; u < s->vlc_n; u++) { |
| 139 | int len1 = s->len[p][u]; |
| 140 | if (len1 > limit || !len1) |
| 141 | continue; |
| 142 | if ((sign_extend(u, 8) & (s->vlc_n-1)) != u) |
| 143 | continue; |
| 144 | av_assert0(i < (1 << VLC_BITS)); |
| 145 | len[i] = len0 + len1; |
| 146 | bits[i] = (s->bits[p0][y] << len1) + s->bits[p][u]; |
| 147 | symbols[i] = (y << 8) + (u & 0xFF); |
| 148 | i++; |
| 149 | } |
| 150 | } |
| 151 | ff_free_vlc(&s->vlc[4 + p]); |
| 152 | if ((ret = ff_init_vlc_sparse(&s->vlc[4 + p], VLC_BITS, i, len, 1, 1, |
| 153 | bits, 2, 2, symbols, 2, 2, 0)) < 0) |
| 154 | goto out; |
| 155 | } |
| 156 | } else { |
| 157 | uint8_t (*map)[4] = (uint8_t(*)[4]) s->pix_bgr_map; |
| 158 | int i, b, g, r, code; |
| 159 | int p0 = s->decorrelate; |
| 160 | int p1 = !s->decorrelate; |
| 161 | /* Restrict the range to +/-16 because that's pretty much guaranteed |
| 162 | * to cover all the combinations that fit in 11 bits total, and it |
| 163 | * does not matter if we miss a few rare codes. */ |
| 164 | for (i = 0, g = -16; g < 16; g++) { |
| 165 | int len0 = s->len[p0][g & 255]; |
| 166 | int limit0 = VLC_BITS - len0; |
| 167 | if (limit0 < 2 || !len0) |
| 168 | continue; |
| 169 | for (b = -16; b < 16; b++) { |
| 170 | int len1 = s->len[p1][b & 255]; |
| 171 | int limit1 = limit0 - len1; |
| 172 | if (limit1 < 1 || !len1) |
| 173 | continue; |
| 174 | code = (s->bits[p0][g & 255] << len1) + s->bits[p1][b & 255]; |
| 175 | for (r = -16; r < 16; r++) { |
| 176 | int len2 = s->len[2][r & 255]; |
| 177 | if (len2 > limit1 || !len2) |
| 178 | continue; |
| 179 | av_assert0(i < (1 << VLC_BITS)); |
| 180 | len[i] = len0 + len1 + len2; |
| 181 | bits[i] = (code << len2) + s->bits[2][r & 255]; |
| 182 | if (s->decorrelate) { |
| 183 | map[i][G] = g; |
| 184 | map[i][B] = g + b; |
| 185 | map[i][R] = g + r; |
| 186 | } else { |
| 187 | map[i][B] = g; |
| 188 | map[i][G] = b; |
| 189 | map[i][R] = r; |
| 190 | } |
| 191 | i++; |
| 192 | } |
| 193 | } |
| 194 | } |
| 195 | ff_free_vlc(&s->vlc[4]); |
| 196 | if ((ret = init_vlc(&s->vlc[4], VLC_BITS, i, len, 1, 1, |
| 197 | bits, 2, 2, 0)) < 0) |
| 198 | goto out; |
| 199 | } |
| 200 | ret = 0; |
| 201 | out: |
| 202 | av_freep(&symbols); |
| 203 | return ret; |
| 204 | } |
| 205 | |
| 206 | static int read_huffman_tables(HYuvContext *s, const uint8_t *src, int length) |
| 207 | { |
| 208 | GetBitContext gb; |
| 209 | int i, ret; |
| 210 | int count = 3; |
| 211 | |
| 212 | if ((ret = init_get_bits(&gb, src, length * 8)) < 0) |
| 213 | return ret; |
| 214 | |
| 215 | if (s->version > 2) |
| 216 | count = 1 + s->alpha + 2*s->chroma; |
| 217 | |
| 218 | for (i = 0; i < count; i++) { |
| 219 | if ((ret = read_len_table(s->len[i], &gb, s->vlc_n)) < 0) |
| 220 | return ret; |
| 221 | if ((ret = ff_huffyuv_generate_bits_table(s->bits[i], s->len[i], s->vlc_n)) < 0) |
| 222 | return ret; |
| 223 | ff_free_vlc(&s->vlc[i]); |
| 224 | if ((ret = init_vlc(&s->vlc[i], VLC_BITS, s->vlc_n, s->len[i], 1, 1, |
| 225 | s->bits[i], 4, 4, 0)) < 0) |
| 226 | return ret; |
| 227 | } |
| 228 | |
| 229 | if ((ret = generate_joint_tables(s)) < 0) |
| 230 | return ret; |
| 231 | |
| 232 | return (get_bits_count(&gb) + 7) / 8; |
| 233 | } |
| 234 | |
| 235 | static int read_old_huffman_tables(HYuvContext *s) |
| 236 | { |
| 237 | GetBitContext gb; |
| 238 | int i, ret; |
| 239 | |
| 240 | init_get_bits(&gb, classic_shift_luma, |
| 241 | classic_shift_luma_table_size * 8); |
| 242 | if ((ret = read_len_table(s->len[0], &gb, 256)) < 0) |
| 243 | return ret; |
| 244 | |
| 245 | init_get_bits(&gb, classic_shift_chroma, |
| 246 | classic_shift_chroma_table_size * 8); |
| 247 | if ((ret = read_len_table(s->len[1], &gb, 256)) < 0) |
| 248 | return ret; |
| 249 | |
| 250 | for (i = 0; i < 256; i++) |
| 251 | s->bits[0][i] = classic_add_luma[i]; |
| 252 | for (i = 0; i < 256; i++) |
| 253 | s->bits[1][i] = classic_add_chroma[i]; |
| 254 | |
| 255 | if (s->bitstream_bpp >= 24) { |
| 256 | memcpy(s->bits[1], s->bits[0], 256 * sizeof(uint32_t)); |
| 257 | memcpy(s->len[1], s->len[0], 256 * sizeof(uint8_t)); |
| 258 | } |
| 259 | memcpy(s->bits[2], s->bits[1], 256 * sizeof(uint32_t)); |
| 260 | memcpy(s->len[2], s->len[1], 256 * sizeof(uint8_t)); |
| 261 | |
| 262 | for (i = 0; i < 4; i++) { |
| 263 | ff_free_vlc(&s->vlc[i]); |
| 264 | if ((ret = init_vlc(&s->vlc[i], VLC_BITS, 256, s->len[i], 1, 1, |
| 265 | s->bits[i], 4, 4, 0)) < 0) |
| 266 | return ret; |
| 267 | } |
| 268 | |
| 269 | if ((ret = generate_joint_tables(s)) < 0) |
| 270 | return ret; |
| 271 | |
| 272 | return 0; |
| 273 | } |
| 274 | |
| 275 | static av_cold int decode_init(AVCodecContext *avctx) |
| 276 | { |
| 277 | HYuvContext *s = avctx->priv_data; |
| 278 | int ret; |
| 279 | |
| 280 | ff_huffyuvdsp_init(&s->hdsp); |
| 281 | memset(s->vlc, 0, 4 * sizeof(VLC)); |
| 282 | |
| 283 | s->interlaced = avctx->height > 288; |
| 284 | s->bgr32 = 1; |
| 285 | |
| 286 | if (avctx->extradata_size) { |
| 287 | if ((avctx->bits_per_coded_sample & 7) && |
| 288 | avctx->bits_per_coded_sample != 12) |
| 289 | s->version = 1; // do such files exist at all? |
| 290 | else if (avctx->extradata_size > 3 && avctx->extradata[3] == 0) |
| 291 | s->version = 2; |
| 292 | else |
| 293 | s->version = 3; |
| 294 | } else |
| 295 | s->version = 0; |
| 296 | |
| 297 | s->bps = 8; |
| 298 | s->n = 1<<s->bps; |
| 299 | s->vlc_n = FFMIN(s->n, MAX_VLC_N); |
| 300 | s->chroma = 1; |
| 301 | if (s->version >= 2) { |
| 302 | int method, interlace; |
| 303 | |
| 304 | if (avctx->extradata_size < 4) |
| 305 | return AVERROR_INVALIDDATA; |
| 306 | |
| 307 | method = avctx->extradata[0]; |
| 308 | s->decorrelate = method & 64 ? 1 : 0; |
| 309 | s->predictor = method & 63; |
| 310 | if (s->version == 2) { |
| 311 | s->bitstream_bpp = avctx->extradata[1]; |
| 312 | if (s->bitstream_bpp == 0) |
| 313 | s->bitstream_bpp = avctx->bits_per_coded_sample & ~7; |
| 314 | } else { |
| 315 | s->bps = (avctx->extradata[1] >> 4) + 1; |
| 316 | s->n = 1<<s->bps; |
| 317 | s->vlc_n = FFMIN(s->n, MAX_VLC_N); |
| 318 | s->chroma_h_shift = avctx->extradata[1] & 3; |
| 319 | s->chroma_v_shift = (avctx->extradata[1] >> 2) & 3; |
| 320 | s->yuv = !!(avctx->extradata[2] & 1); |
| 321 | s->chroma= !!(avctx->extradata[2] & 3); |
| 322 | s->alpha = !!(avctx->extradata[2] & 4); |
| 323 | } |
| 324 | interlace = (avctx->extradata[2] & 0x30) >> 4; |
| 325 | s->interlaced = (interlace == 1) ? 1 : (interlace == 2) ? 0 : s->interlaced; |
| 326 | s->context = avctx->extradata[2] & 0x40 ? 1 : 0; |
| 327 | |
| 328 | if ((ret = read_huffman_tables(s, avctx->extradata + 4, |
| 329 | avctx->extradata_size - 4)) < 0) |
| 330 | return ret; |
| 331 | } else { |
| 332 | switch (avctx->bits_per_coded_sample & 7) { |
| 333 | case 1: |
| 334 | s->predictor = LEFT; |
| 335 | s->decorrelate = 0; |
| 336 | break; |
| 337 | case 2: |
| 338 | s->predictor = LEFT; |
| 339 | s->decorrelate = 1; |
| 340 | break; |
| 341 | case 3: |
| 342 | s->predictor = PLANE; |
| 343 | s->decorrelate = avctx->bits_per_coded_sample >= 24; |
| 344 | break; |
| 345 | case 4: |
| 346 | s->predictor = MEDIAN; |
| 347 | s->decorrelate = 0; |
| 348 | break; |
| 349 | default: |
| 350 | s->predictor = LEFT; // OLD |
| 351 | s->decorrelate = 0; |
| 352 | break; |
| 353 | } |
| 354 | s->bitstream_bpp = avctx->bits_per_coded_sample & ~7; |
| 355 | s->context = 0; |
| 356 | |
| 357 | if ((ret = read_old_huffman_tables(s)) < 0) |
| 358 | return ret; |
| 359 | } |
| 360 | |
| 361 | if (s->version <= 2) { |
| 362 | switch (s->bitstream_bpp) { |
| 363 | case 12: |
| 364 | avctx->pix_fmt = AV_PIX_FMT_YUV420P; |
| 365 | s->yuv = 1; |
| 366 | break; |
| 367 | case 16: |
| 368 | if (s->yuy2) |
| 369 | avctx->pix_fmt = AV_PIX_FMT_YUYV422; |
| 370 | else |
| 371 | avctx->pix_fmt = AV_PIX_FMT_YUV422P; |
| 372 | s->yuv = 1; |
| 373 | break; |
| 374 | case 24: |
| 375 | if (s->bgr32) |
| 376 | avctx->pix_fmt = AV_PIX_FMT_0RGB32; |
| 377 | else |
| 378 | avctx->pix_fmt = AV_PIX_FMT_BGR24; |
| 379 | break; |
| 380 | case 32: |
| 381 | av_assert0(s->bgr32); |
| 382 | avctx->pix_fmt = AV_PIX_FMT_RGB32; |
| 383 | s->alpha = 1; |
| 384 | break; |
| 385 | default: |
| 386 | return AVERROR_INVALIDDATA; |
| 387 | } |
| 388 | av_pix_fmt_get_chroma_sub_sample(avctx->pix_fmt, |
| 389 | &s->chroma_h_shift, |
| 390 | &s->chroma_v_shift); |
| 391 | } else { |
| 392 | switch ( (s->chroma<<10) | (s->yuv<<9) | (s->alpha<<8) | ((s->bps-1)<<4) | s->chroma_h_shift | (s->chroma_v_shift<<2)) { |
| 393 | case 0x070: |
| 394 | avctx->pix_fmt = AV_PIX_FMT_GRAY8; |
| 395 | break; |
| 396 | case 0x0F0: |
| 397 | avctx->pix_fmt = AV_PIX_FMT_GRAY16; |
| 398 | break; |
| 399 | case 0x170: |
| 400 | avctx->pix_fmt = AV_PIX_FMT_GRAY8A; |
| 401 | break; |
| 402 | case 0x470: |
| 403 | avctx->pix_fmt = AV_PIX_FMT_GBRP; |
| 404 | break; |
| 405 | case 0x480: |
| 406 | avctx->pix_fmt = AV_PIX_FMT_GBRP9; |
| 407 | break; |
| 408 | case 0x490: |
| 409 | avctx->pix_fmt = AV_PIX_FMT_GBRP10; |
| 410 | break; |
| 411 | case 0x4B0: |
| 412 | avctx->pix_fmt = AV_PIX_FMT_GBRP12; |
| 413 | break; |
| 414 | case 0x4D0: |
| 415 | avctx->pix_fmt = AV_PIX_FMT_GBRP14; |
| 416 | break; |
| 417 | case 0x4F0: |
| 418 | avctx->pix_fmt = AV_PIX_FMT_GBRP16; |
| 419 | break; |
| 420 | case 0x570: |
| 421 | avctx->pix_fmt = AV_PIX_FMT_GBRAP; |
| 422 | break; |
| 423 | case 0x670: |
| 424 | avctx->pix_fmt = AV_PIX_FMT_YUV444P; |
| 425 | break; |
| 426 | case 0x680: |
| 427 | avctx->pix_fmt = AV_PIX_FMT_YUV444P9; |
| 428 | break; |
| 429 | case 0x690: |
| 430 | avctx->pix_fmt = AV_PIX_FMT_YUV444P10; |
| 431 | break; |
| 432 | case 0x6B0: |
| 433 | avctx->pix_fmt = AV_PIX_FMT_YUV444P12; |
| 434 | break; |
| 435 | case 0x6D0: |
| 436 | avctx->pix_fmt = AV_PIX_FMT_YUV444P14; |
| 437 | break; |
| 438 | case 0x6F0: |
| 439 | avctx->pix_fmt = AV_PIX_FMT_YUV444P16; |
| 440 | break; |
| 441 | case 0x671: |
| 442 | avctx->pix_fmt = AV_PIX_FMT_YUV422P; |
| 443 | break; |
| 444 | case 0x681: |
| 445 | avctx->pix_fmt = AV_PIX_FMT_YUV422P9; |
| 446 | break; |
| 447 | case 0x691: |
| 448 | avctx->pix_fmt = AV_PIX_FMT_YUV422P10; |
| 449 | break; |
| 450 | case 0x6B1: |
| 451 | avctx->pix_fmt = AV_PIX_FMT_YUV422P12; |
| 452 | break; |
| 453 | case 0x6D1: |
| 454 | avctx->pix_fmt = AV_PIX_FMT_YUV422P14; |
| 455 | break; |
| 456 | case 0x6F1: |
| 457 | avctx->pix_fmt = AV_PIX_FMT_YUV422P16; |
| 458 | break; |
| 459 | case 0x672: |
| 460 | avctx->pix_fmt = AV_PIX_FMT_YUV411P; |
| 461 | break; |
| 462 | case 0x674: |
| 463 | avctx->pix_fmt = AV_PIX_FMT_YUV440P; |
| 464 | break; |
| 465 | case 0x675: |
| 466 | avctx->pix_fmt = AV_PIX_FMT_YUV420P; |
| 467 | break; |
| 468 | case 0x685: |
| 469 | avctx->pix_fmt = AV_PIX_FMT_YUV420P9; |
| 470 | break; |
| 471 | case 0x695: |
| 472 | avctx->pix_fmt = AV_PIX_FMT_YUV420P10; |
| 473 | break; |
| 474 | case 0x6B5: |
| 475 | avctx->pix_fmt = AV_PIX_FMT_YUV420P12; |
| 476 | break; |
| 477 | case 0x6D5: |
| 478 | avctx->pix_fmt = AV_PIX_FMT_YUV420P14; |
| 479 | break; |
| 480 | case 0x6F5: |
| 481 | avctx->pix_fmt = AV_PIX_FMT_YUV420P16; |
| 482 | break; |
| 483 | case 0x67A: |
| 484 | avctx->pix_fmt = AV_PIX_FMT_YUV410P; |
| 485 | break; |
| 486 | case 0x770: |
| 487 | avctx->pix_fmt = AV_PIX_FMT_YUVA444P; |
| 488 | break; |
| 489 | case 0x780: |
| 490 | avctx->pix_fmt = AV_PIX_FMT_YUVA444P9; |
| 491 | break; |
| 492 | case 0x790: |
| 493 | avctx->pix_fmt = AV_PIX_FMT_YUVA444P10; |
| 494 | break; |
| 495 | case 0x7F0: |
| 496 | avctx->pix_fmt = AV_PIX_FMT_YUVA444P16; |
| 497 | break; |
| 498 | case 0x771: |
| 499 | avctx->pix_fmt = AV_PIX_FMT_YUVA422P; |
| 500 | break; |
| 501 | case 0x781: |
| 502 | avctx->pix_fmt = AV_PIX_FMT_YUVA422P9; |
| 503 | break; |
| 504 | case 0x791: |
| 505 | avctx->pix_fmt = AV_PIX_FMT_YUVA422P10; |
| 506 | break; |
| 507 | case 0x7F1: |
| 508 | avctx->pix_fmt = AV_PIX_FMT_YUVA422P16; |
| 509 | break; |
| 510 | case 0x775: |
| 511 | avctx->pix_fmt = AV_PIX_FMT_YUVA420P; |
| 512 | break; |
| 513 | case 0x785: |
| 514 | avctx->pix_fmt = AV_PIX_FMT_YUVA420P9; |
| 515 | break; |
| 516 | case 0x795: |
| 517 | avctx->pix_fmt = AV_PIX_FMT_YUVA420P10; |
| 518 | break; |
| 519 | case 0x7F5: |
| 520 | avctx->pix_fmt = AV_PIX_FMT_YUVA420P16; |
| 521 | break; |
| 522 | default: |
| 523 | return AVERROR_INVALIDDATA; |
| 524 | } |
| 525 | } |
| 526 | |
| 527 | ff_huffyuv_common_init(avctx); |
| 528 | |
| 529 | if ((avctx->pix_fmt == AV_PIX_FMT_YUV422P || avctx->pix_fmt == AV_PIX_FMT_YUV420P) && avctx->width & 1) { |
| 530 | av_log(avctx, AV_LOG_ERROR, "width must be even for this colorspace\n"); |
| 531 | return AVERROR_INVALIDDATA; |
| 532 | } |
| 533 | if (s->predictor == MEDIAN && avctx->pix_fmt == AV_PIX_FMT_YUV422P && |
| 534 | avctx->width % 4) { |
| 535 | av_log(avctx, AV_LOG_ERROR, "width must be a multiple of 4 " |
| 536 | "for this combination of colorspace and predictor type.\n"); |
| 537 | return AVERROR_INVALIDDATA; |
| 538 | } |
| 539 | |
| 540 | if ((ret = ff_huffyuv_alloc_temp(s)) < 0) { |
| 541 | ff_huffyuv_common_end(s); |
| 542 | return ret; |
| 543 | } |
| 544 | |
| 545 | return 0; |
| 546 | } |
| 547 | |
| 548 | static av_cold int decode_init_thread_copy(AVCodecContext *avctx) |
| 549 | { |
| 550 | HYuvContext *s = avctx->priv_data; |
| 551 | int i, ret; |
| 552 | |
| 553 | if ((ret = ff_huffyuv_alloc_temp(s)) < 0) { |
| 554 | ff_huffyuv_common_end(s); |
| 555 | return ret; |
| 556 | } |
| 557 | |
| 558 | for (i = 0; i < 8; i++) |
| 559 | s->vlc[i].table = NULL; |
| 560 | |
| 561 | if (s->version >= 2) { |
| 562 | if ((ret = read_huffman_tables(s, avctx->extradata + 4, |
| 563 | avctx->extradata_size)) < 0) |
| 564 | return ret; |
| 565 | } else { |
| 566 | if ((ret = read_old_huffman_tables(s)) < 0) |
| 567 | return ret; |
| 568 | } |
| 569 | |
| 570 | return 0; |
| 571 | } |
| 572 | |
| 573 | /** Subset of GET_VLC for use in hand-roller VLC code */ |
| 574 | #define VLC_INTERN(dst, table, gb, name, bits, max_depth) \ |
| 575 | code = table[index][0]; \ |
| 576 | n = table[index][1]; \ |
| 577 | if (max_depth > 1 && n < 0) { \ |
| 578 | LAST_SKIP_BITS(name, gb, bits); \ |
| 579 | UPDATE_CACHE(name, gb); \ |
| 580 | \ |
| 581 | nb_bits = -n; \ |
| 582 | index = SHOW_UBITS(name, gb, nb_bits) + code; \ |
| 583 | code = table[index][0]; \ |
| 584 | n = table[index][1]; \ |
| 585 | if (max_depth > 2 && n < 0) { \ |
| 586 | LAST_SKIP_BITS(name, gb, nb_bits); \ |
| 587 | UPDATE_CACHE(name, gb); \ |
| 588 | \ |
| 589 | nb_bits = -n; \ |
| 590 | index = SHOW_UBITS(name, gb, nb_bits) + code; \ |
| 591 | code = table[index][0]; \ |
| 592 | n = table[index][1]; \ |
| 593 | } \ |
| 594 | } \ |
| 595 | dst = code; \ |
| 596 | LAST_SKIP_BITS(name, gb, n) |
| 597 | |
| 598 | |
| 599 | #define GET_VLC_DUAL(dst0, dst1, name, gb, dtable, table1, table2, \ |
| 600 | bits, max_depth, OP) \ |
| 601 | do { \ |
| 602 | unsigned int index = SHOW_UBITS(name, gb, bits); \ |
| 603 | int code, n = dtable[index][1]; \ |
| 604 | \ |
| 605 | if (n<=0) { \ |
| 606 | int nb_bits; \ |
| 607 | VLC_INTERN(dst0, table1, gb, name, bits, max_depth); \ |
| 608 | \ |
| 609 | UPDATE_CACHE(re, gb); \ |
| 610 | index = SHOW_UBITS(name, gb, bits); \ |
| 611 | VLC_INTERN(dst1, table2, gb, name, bits, max_depth); \ |
| 612 | } else { \ |
| 613 | code = dtable[index][0]; \ |
| 614 | OP(dst0, dst1, code); \ |
| 615 | LAST_SKIP_BITS(name, gb, n); \ |
| 616 | } \ |
| 617 | } while (0) |
| 618 | |
| 619 | #define OP8bits(dst0, dst1, code) dst0 = code>>8; dst1 = code |
| 620 | |
| 621 | #define READ_2PIX(dst0, dst1, plane1) \ |
| 622 | UPDATE_CACHE(re, &s->gb); \ |
| 623 | GET_VLC_DUAL(dst0, dst1, re, &s->gb, s->vlc[4+plane1].table, \ |
| 624 | s->vlc[0].table, s->vlc[plane1].table, VLC_BITS, 3, OP8bits) |
| 625 | |
| 626 | static void decode_422_bitstream(HYuvContext *s, int count) |
| 627 | { |
| 628 | int i, icount; |
| 629 | OPEN_READER(re, &s->gb); |
| 630 | count /= 2; |
| 631 | |
| 632 | icount = get_bits_left(&s->gb) / (32 * 4); |
| 633 | if (count >= icount) { |
| 634 | for (i = 0; i < icount; i++) { |
| 635 | READ_2PIX(s->temp[0][2 * i], s->temp[1][i], 1); |
| 636 | READ_2PIX(s->temp[0][2 * i + 1], s->temp[2][i], 2); |
| 637 | } |
| 638 | for (; i < count && BITS_LEFT(re, &s->gb) > 0; i++) { |
| 639 | READ_2PIX(s->temp[0][2 * i ], s->temp[1][i], 1); |
| 640 | if (BITS_LEFT(re, &s->gb) <= 0) break; |
| 641 | READ_2PIX(s->temp[0][2 * i + 1], s->temp[2][i], 2); |
| 642 | } |
| 643 | for (; i < count; i++) |
| 644 | s->temp[0][2 * i ] = s->temp[1][i] = |
| 645 | s->temp[0][2 * i + 1] = s->temp[2][i] = 0; |
| 646 | } else { |
| 647 | for (i = 0; i < count; i++) { |
| 648 | READ_2PIX(s->temp[0][2 * i], s->temp[1][i], 1); |
| 649 | READ_2PIX(s->temp[0][2 * i + 1], s->temp[2][i], 2); |
| 650 | } |
| 651 | } |
| 652 | CLOSE_READER(re, &s->gb); |
| 653 | } |
| 654 | |
| 655 | #define READ_2PIX_PLANE(dst0, dst1, plane, OP) \ |
| 656 | UPDATE_CACHE(re, &s->gb); \ |
| 657 | GET_VLC_DUAL(dst0, dst1, re, &s->gb, s->vlc[4+plane].table, \ |
| 658 | s->vlc[plane].table, s->vlc[plane].table, VLC_BITS, 3, OP) |
| 659 | |
| 660 | #define OP14bits(dst0, dst1, code) dst0 = code>>8; dst1 = sign_extend(code, 8) |
| 661 | |
| 662 | /* TODO instead of restarting the read when the code isn't in the first level |
| 663 | * of the joint table, jump into the 2nd level of the individual table. */ |
| 664 | #define READ_2PIX_PLANE16(dst0, dst1, plane){\ |
| 665 | dst0 = get_vlc2(&s->gb, s->vlc[plane].table, VLC_BITS, 3)<<2;\ |
| 666 | dst0 += get_bits(&s->gb, 2);\ |
| 667 | dst1 = get_vlc2(&s->gb, s->vlc[plane].table, VLC_BITS, 3)<<2;\ |
| 668 | dst1 += get_bits(&s->gb, 2);\ |
| 669 | } |
| 670 | static void decode_plane_bitstream(HYuvContext *s, int width, int plane) |
| 671 | { |
| 672 | int i, count = width/2; |
| 673 | |
| 674 | if (s->bps <= 8) { |
| 675 | OPEN_READER(re, &s->gb); |
| 676 | if (count >= (get_bits_left(&s->gb)) / (32 * 2)) { |
| 677 | for (i = 0; i < count && BITS_LEFT(re, &s->gb) > 0; i++) { |
| 678 | READ_2PIX_PLANE(s->temp[0][2 * i], s->temp[0][2 * i + 1], plane, OP8bits); |
| 679 | } |
| 680 | } else { |
| 681 | for(i=0; i<count; i++){ |
| 682 | READ_2PIX_PLANE(s->temp[0][2 * i], s->temp[0][2 * i + 1], plane, OP8bits); |
| 683 | } |
| 684 | } |
| 685 | if( width&1 && BITS_LEFT(re, &s->gb)>0 ) { |
| 686 | unsigned int index; |
| 687 | int nb_bits, code, n; |
| 688 | UPDATE_CACHE(re, &s->gb); |
| 689 | index = SHOW_UBITS(re, &s->gb, VLC_BITS); |
| 690 | VLC_INTERN(s->temp[0][width-1], s->vlc[plane].table, |
| 691 | &s->gb, re, VLC_BITS, 3); |
| 692 | } |
| 693 | CLOSE_READER(re, &s->gb); |
| 694 | } else if (s->bps <= 14) { |
| 695 | OPEN_READER(re, &s->gb); |
| 696 | if (count >= (get_bits_left(&s->gb)) / (32 * 2)) { |
| 697 | for (i = 0; i < count && BITS_LEFT(re, &s->gb) > 0; i++) { |
| 698 | READ_2PIX_PLANE(s->temp16[0][2 * i], s->temp16[0][2 * i + 1], plane, OP14bits); |
| 699 | } |
| 700 | } else { |
| 701 | for(i=0; i<count; i++){ |
| 702 | READ_2PIX_PLANE(s->temp16[0][2 * i], s->temp16[0][2 * i + 1], plane, OP14bits); |
| 703 | } |
| 704 | } |
| 705 | if( width&1 && BITS_LEFT(re, &s->gb)>0 ) { |
| 706 | unsigned int index; |
| 707 | int nb_bits, code, n; |
| 708 | UPDATE_CACHE(re, &s->gb); |
| 709 | index = SHOW_UBITS(re, &s->gb, VLC_BITS); |
| 710 | VLC_INTERN(s->temp16[0][width-1], s->vlc[plane].table, |
| 711 | &s->gb, re, VLC_BITS, 3); |
| 712 | } |
| 713 | CLOSE_READER(re, &s->gb); |
| 714 | } else { |
| 715 | if (count >= (get_bits_left(&s->gb)) / (32 * 2)) { |
| 716 | for (i = 0; i < count && get_bits_left(&s->gb) > 0; i++) { |
| 717 | READ_2PIX_PLANE16(s->temp16[0][2 * i], s->temp16[0][2 * i + 1], plane); |
| 718 | } |
| 719 | } else { |
| 720 | for(i=0; i<count; i++){ |
| 721 | READ_2PIX_PLANE16(s->temp16[0][2 * i], s->temp16[0][2 * i + 1], plane); |
| 722 | } |
| 723 | } |
| 724 | if( width&1 && get_bits_left(&s->gb)>0 ) { |
| 725 | int dst = get_vlc2(&s->gb, s->vlc[plane].table, VLC_BITS, 3)<<2; |
| 726 | s->temp16[0][width-1] = dst + get_bits(&s->gb, 2); |
| 727 | } |
| 728 | } |
| 729 | } |
| 730 | |
| 731 | static void decode_gray_bitstream(HYuvContext *s, int count) |
| 732 | { |
| 733 | int i; |
| 734 | OPEN_READER(re, &s->gb); |
| 735 | count /= 2; |
| 736 | |
| 737 | if (count >= (get_bits_left(&s->gb)) / (32 * 2)) { |
| 738 | for (i = 0; i < count && BITS_LEFT(re, &s->gb) > 0; i++) { |
| 739 | READ_2PIX(s->temp[0][2 * i], s->temp[0][2 * i + 1], 0); |
| 740 | } |
| 741 | } else { |
| 742 | for (i = 0; i < count; i++) { |
| 743 | READ_2PIX(s->temp[0][2 * i], s->temp[0][2 * i + 1], 0); |
| 744 | } |
| 745 | } |
| 746 | CLOSE_READER(re, &s->gb); |
| 747 | } |
| 748 | |
| 749 | static av_always_inline void decode_bgr_1(HYuvContext *s, int count, |
| 750 | int decorrelate, int alpha) |
| 751 | { |
| 752 | int i; |
| 753 | OPEN_READER(re, &s->gb); |
| 754 | |
| 755 | for (i = 0; i < count && BITS_LEFT(re, &s->gb) > 0; i++) { |
| 756 | unsigned int index; |
| 757 | int code, n, nb_bits; |
| 758 | |
| 759 | UPDATE_CACHE(re, &s->gb); |
| 760 | index = SHOW_UBITS(re, &s->gb, VLC_BITS); |
| 761 | n = s->vlc[4].table[index][1]; |
| 762 | |
| 763 | if (n>0) { |
| 764 | code = s->vlc[4].table[index][0]; |
| 765 | *(uint32_t *) &s->temp[0][4 * i] = s->pix_bgr_map[code]; |
| 766 | LAST_SKIP_BITS(re, &s->gb, n); |
| 767 | } else { |
| 768 | if (decorrelate) { |
| 769 | VLC_INTERN(s->temp[0][4 * i + G], s->vlc[1].table, |
| 770 | &s->gb, re, VLC_BITS, 3); |
| 771 | |
| 772 | UPDATE_CACHE(re, &s->gb); |
| 773 | index = SHOW_UBITS(re, &s->gb, VLC_BITS); |
| 774 | VLC_INTERN(code, s->vlc[0].table, &s->gb, re, VLC_BITS, 3); |
| 775 | s->temp[0][4 * i + B] = code + s->temp[0][4 * i + G]; |
| 776 | |
| 777 | UPDATE_CACHE(re, &s->gb); |
| 778 | index = SHOW_UBITS(re, &s->gb, VLC_BITS); |
| 779 | VLC_INTERN(code, s->vlc[2].table, &s->gb, re, VLC_BITS, 3); |
| 780 | s->temp[0][4 * i + R] = code + s->temp[0][4 * i + G]; |
| 781 | } else { |
| 782 | VLC_INTERN(s->temp[0][4 * i + B], s->vlc[0].table, |
| 783 | &s->gb, re, VLC_BITS, 3); |
| 784 | |
| 785 | UPDATE_CACHE(re, &s->gb); |
| 786 | index = SHOW_UBITS(re, &s->gb, VLC_BITS); |
| 787 | VLC_INTERN(s->temp[0][4 * i + G], s->vlc[1].table, |
| 788 | &s->gb, re, VLC_BITS, 3); |
| 789 | |
| 790 | UPDATE_CACHE(re, &s->gb); |
| 791 | index = SHOW_UBITS(re, &s->gb, VLC_BITS); |
| 792 | VLC_INTERN(s->temp[0][4 * i + R], s->vlc[2].table, |
| 793 | &s->gb, re, VLC_BITS, 3); |
| 794 | } |
| 795 | } |
| 796 | if (alpha) { |
| 797 | UPDATE_CACHE(re, &s->gb); |
| 798 | index = SHOW_UBITS(re, &s->gb, VLC_BITS); |
| 799 | VLC_INTERN(s->temp[0][4 * i + A], s->vlc[2].table, |
| 800 | &s->gb, re, VLC_BITS, 3); |
| 801 | } else |
| 802 | s->temp[0][4 * i + A] = 0; |
| 803 | } |
| 804 | CLOSE_READER(re, &s->gb); |
| 805 | } |
| 806 | |
| 807 | static void decode_bgr_bitstream(HYuvContext *s, int count) |
| 808 | { |
| 809 | if (s->decorrelate) { |
| 810 | if (s->bitstream_bpp == 24) |
| 811 | decode_bgr_1(s, count, 1, 0); |
| 812 | else |
| 813 | decode_bgr_1(s, count, 1, 1); |
| 814 | } else { |
| 815 | if (s->bitstream_bpp == 24) |
| 816 | decode_bgr_1(s, count, 0, 0); |
| 817 | else |
| 818 | decode_bgr_1(s, count, 0, 1); |
| 819 | } |
| 820 | } |
| 821 | |
| 822 | static void draw_slice(HYuvContext *s, AVFrame *frame, int y) |
| 823 | { |
| 824 | int h, cy, i; |
| 825 | int offset[AV_NUM_DATA_POINTERS]; |
| 826 | |
| 827 | if (!s->avctx->draw_horiz_band) |
| 828 | return; |
| 829 | |
| 830 | h = y - s->last_slice_end; |
| 831 | y -= h; |
| 832 | |
| 833 | if (s->bitstream_bpp == 12) |
| 834 | cy = y >> 1; |
| 835 | else |
| 836 | cy = y; |
| 837 | |
| 838 | offset[0] = frame->linesize[0] * y; |
| 839 | offset[1] = frame->linesize[1] * cy; |
| 840 | offset[2] = frame->linesize[2] * cy; |
| 841 | for (i = 3; i < AV_NUM_DATA_POINTERS; i++) |
| 842 | offset[i] = 0; |
| 843 | emms_c(); |
| 844 | |
| 845 | s->avctx->draw_horiz_band(s->avctx, frame, offset, y, 3, h); |
| 846 | |
| 847 | s->last_slice_end = y + h; |
| 848 | } |
| 849 | |
| 850 | static int left_prediction(HYuvContext *s, uint8_t *dst, const uint8_t *src, int w, int acc) |
| 851 | { |
| 852 | if (s->bps <= 8) { |
| 853 | return s->hdsp.add_hfyu_left_pred(dst, src, w, acc); |
| 854 | } else { |
| 855 | return s->llviddsp.add_hfyu_left_pred_int16(( uint16_t *)dst, (const uint16_t *)src, s->n-1, w, acc); |
| 856 | } |
| 857 | } |
| 858 | |
| 859 | static void add_bytes(HYuvContext *s, uint8_t *dst, uint8_t *src, int w) |
| 860 | { |
| 861 | if (s->bps <= 8) { |
| 862 | s->hdsp.add_bytes(dst, src, w); |
| 863 | } else { |
| 864 | s->llviddsp.add_int16((uint16_t*)dst, (const uint16_t*)src, s->n - 1, w); |
| 865 | } |
| 866 | } |
| 867 | |
| 868 | static void add_median_prediction(HYuvContext *s, uint8_t *dst, const uint8_t *src, const uint8_t *diff, int w, int *left, int *left_top) |
| 869 | { |
| 870 | if (s->bps <= 8) { |
| 871 | s->hdsp.add_hfyu_median_pred(dst, src, diff, w, left, left_top); |
| 872 | } else { |
| 873 | s->llviddsp.add_hfyu_median_pred_int16((uint16_t *)dst, (const uint16_t *)src, (const uint16_t *)diff, s->n-1, w, left, left_top); |
| 874 | } |
| 875 | } |
| 876 | static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, |
| 877 | AVPacket *avpkt) |
| 878 | { |
| 879 | const uint8_t *buf = avpkt->data; |
| 880 | int buf_size = avpkt->size; |
| 881 | HYuvContext *s = avctx->priv_data; |
| 882 | const int width = s->width; |
| 883 | const int width2 = s->width >> 1; |
| 884 | const int height = s->height; |
| 885 | int fake_ystride, fake_ustride, fake_vstride; |
| 886 | ThreadFrame frame = { .f = data }; |
| 887 | AVFrame *const p = data; |
| 888 | int table_size = 0, ret; |
| 889 | |
| 890 | av_fast_padded_malloc(&s->bitstream_buffer, |
| 891 | &s->bitstream_buffer_size, |
| 892 | buf_size); |
| 893 | if (!s->bitstream_buffer) |
| 894 | return AVERROR(ENOMEM); |
| 895 | |
| 896 | s->bdsp.bswap_buf((uint32_t *) s->bitstream_buffer, |
| 897 | (const uint32_t *) buf, buf_size / 4); |
| 898 | |
| 899 | if ((ret = ff_thread_get_buffer(avctx, &frame, 0)) < 0) |
| 900 | return ret; |
| 901 | |
| 902 | if (s->context) { |
| 903 | table_size = read_huffman_tables(s, s->bitstream_buffer, buf_size); |
| 904 | if (table_size < 0) |
| 905 | return table_size; |
| 906 | } |
| 907 | |
| 908 | if ((unsigned) (buf_size - table_size) >= INT_MAX / 8) |
| 909 | return AVERROR_INVALIDDATA; |
| 910 | |
| 911 | if ((ret = init_get_bits(&s->gb, s->bitstream_buffer + table_size, |
| 912 | (buf_size - table_size) * 8)) < 0) |
| 913 | return ret; |
| 914 | |
| 915 | fake_ystride = s->interlaced ? p->linesize[0] * 2 : p->linesize[0]; |
| 916 | fake_ustride = s->interlaced ? p->linesize[1] * 2 : p->linesize[1]; |
| 917 | fake_vstride = s->interlaced ? p->linesize[2] * 2 : p->linesize[2]; |
| 918 | |
| 919 | s->last_slice_end = 0; |
| 920 | |
| 921 | if (s->version > 2) { |
| 922 | int plane; |
| 923 | for(plane = 0; plane < 1 + 2*s->chroma + s->alpha; plane++) { |
| 924 | int left, lefttop, y; |
| 925 | int w = width; |
| 926 | int h = height; |
| 927 | int fake_stride = fake_ystride; |
| 928 | |
| 929 | if (s->chroma && (plane == 1 || plane == 2)) { |
| 930 | w >>= s->chroma_h_shift; |
| 931 | h >>= s->chroma_v_shift; |
| 932 | fake_stride = plane == 1 ? fake_ustride : fake_vstride; |
| 933 | } |
| 934 | |
| 935 | switch (s->predictor) { |
| 936 | case LEFT: |
| 937 | case PLANE: |
| 938 | decode_plane_bitstream(s, w, plane); |
| 939 | left = left_prediction(s, p->data[plane], s->temp[0], w, 0); |
| 940 | |
| 941 | for (y = 1; y < h; y++) { |
| 942 | uint8_t *dst = p->data[plane] + p->linesize[plane]*y; |
| 943 | |
| 944 | decode_plane_bitstream(s, w, plane); |
| 945 | left = left_prediction(s, dst, s->temp[0], w, left); |
| 946 | if (s->predictor == PLANE) { |
| 947 | if (y > s->interlaced) { |
| 948 | add_bytes(s, dst, dst - fake_stride, w); |
| 949 | } |
| 950 | } |
| 951 | } |
| 952 | |
| 953 | break; |
| 954 | case MEDIAN: |
| 955 | decode_plane_bitstream(s, w, plane); |
| 956 | left= left_prediction(s, p->data[plane], s->temp[0], w, 0); |
| 957 | |
| 958 | y = 1; |
| 959 | |
| 960 | /* second line is left predicted for interlaced case */ |
| 961 | if (s->interlaced) { |
| 962 | decode_plane_bitstream(s, w, plane); |
| 963 | left = left_prediction(s, p->data[plane] + p->linesize[plane], s->temp[0], w, left); |
| 964 | y++; |
| 965 | } |
| 966 | |
| 967 | lefttop = p->data[plane][0]; |
| 968 | decode_plane_bitstream(s, w, plane); |
| 969 | add_median_prediction(s, p->data[plane] + fake_stride, p->data[plane], s->temp[0], w, &left, &lefttop); |
| 970 | y++; |
| 971 | |
| 972 | for (; y<h; y++) { |
| 973 | uint8_t *dst; |
| 974 | |
| 975 | decode_plane_bitstream(s, w, plane); |
| 976 | |
| 977 | dst = p->data[plane] + p->linesize[plane] * y; |
| 978 | |
| 979 | add_median_prediction(s, dst, dst - fake_stride, s->temp[0], w, &left, &lefttop); |
| 980 | } |
| 981 | |
| 982 | break; |
| 983 | } |
| 984 | } |
| 985 | draw_slice(s, p, height); |
| 986 | } else if (s->bitstream_bpp < 24) { |
| 987 | int y, cy; |
| 988 | int lefty, leftu, leftv; |
| 989 | int lefttopy, lefttopu, lefttopv; |
| 990 | |
| 991 | if (s->yuy2) { |
| 992 | p->data[0][3] = get_bits(&s->gb, 8); |
| 993 | p->data[0][2] = get_bits(&s->gb, 8); |
| 994 | p->data[0][1] = get_bits(&s->gb, 8); |
| 995 | p->data[0][0] = get_bits(&s->gb, 8); |
| 996 | |
| 997 | av_log(avctx, AV_LOG_ERROR, |
| 998 | "YUY2 output is not implemented yet\n"); |
| 999 | return AVERROR_PATCHWELCOME; |
| 1000 | } else { |
| 1001 | leftv = |
| 1002 | p->data[2][0] = get_bits(&s->gb, 8); |
| 1003 | lefty = |
| 1004 | p->data[0][1] = get_bits(&s->gb, 8); |
| 1005 | leftu = |
| 1006 | p->data[1][0] = get_bits(&s->gb, 8); |
| 1007 | p->data[0][0] = get_bits(&s->gb, 8); |
| 1008 | |
| 1009 | switch (s->predictor) { |
| 1010 | case LEFT: |
| 1011 | case PLANE: |
| 1012 | decode_422_bitstream(s, width - 2); |
| 1013 | lefty = s->hdsp.add_hfyu_left_pred(p->data[0] + 2, s->temp[0], |
| 1014 | width - 2, lefty); |
| 1015 | if (!(s->flags & CODEC_FLAG_GRAY)) { |
| 1016 | leftu = s->hdsp.add_hfyu_left_pred(p->data[1] + 1, s->temp[1], width2 - 1, leftu); |
| 1017 | leftv = s->hdsp.add_hfyu_left_pred(p->data[2] + 1, s->temp[2], width2 - 1, leftv); |
| 1018 | } |
| 1019 | |
| 1020 | for (cy = y = 1; y < s->height; y++, cy++) { |
| 1021 | uint8_t *ydst, *udst, *vdst; |
| 1022 | |
| 1023 | if (s->bitstream_bpp == 12) { |
| 1024 | decode_gray_bitstream(s, width); |
| 1025 | |
| 1026 | ydst = p->data[0] + p->linesize[0] * y; |
| 1027 | |
| 1028 | lefty = s->hdsp.add_hfyu_left_pred(ydst, s->temp[0], |
| 1029 | width, lefty); |
| 1030 | if (s->predictor == PLANE) { |
| 1031 | if (y > s->interlaced) |
| 1032 | s->hdsp.add_bytes(ydst, ydst - fake_ystride, width); |
| 1033 | } |
| 1034 | y++; |
| 1035 | if (y >= s->height) |
| 1036 | break; |
| 1037 | } |
| 1038 | |
| 1039 | draw_slice(s, p, y); |
| 1040 | |
| 1041 | ydst = p->data[0] + p->linesize[0] * y; |
| 1042 | udst = p->data[1] + p->linesize[1] * cy; |
| 1043 | vdst = p->data[2] + p->linesize[2] * cy; |
| 1044 | |
| 1045 | decode_422_bitstream(s, width); |
| 1046 | lefty = s->hdsp.add_hfyu_left_pred(ydst, s->temp[0], |
| 1047 | width, lefty); |
| 1048 | if (!(s->flags & CODEC_FLAG_GRAY)) { |
| 1049 | leftu = s->hdsp.add_hfyu_left_pred(udst, s->temp[1], width2, leftu); |
| 1050 | leftv = s->hdsp.add_hfyu_left_pred(vdst, s->temp[2], width2, leftv); |
| 1051 | } |
| 1052 | if (s->predictor == PLANE) { |
| 1053 | if (cy > s->interlaced) { |
| 1054 | s->hdsp.add_bytes(ydst, ydst - fake_ystride, width); |
| 1055 | if (!(s->flags & CODEC_FLAG_GRAY)) { |
| 1056 | s->hdsp.add_bytes(udst, udst - fake_ustride, width2); |
| 1057 | s->hdsp.add_bytes(vdst, vdst - fake_vstride, width2); |
| 1058 | } |
| 1059 | } |
| 1060 | } |
| 1061 | } |
| 1062 | draw_slice(s, p, height); |
| 1063 | |
| 1064 | break; |
| 1065 | case MEDIAN: |
| 1066 | /* first line except first 2 pixels is left predicted */ |
| 1067 | decode_422_bitstream(s, width - 2); |
| 1068 | lefty = s->hdsp.add_hfyu_left_pred(p->data[0] + 2, s->temp[0], |
| 1069 | width - 2, lefty); |
| 1070 | if (!(s->flags & CODEC_FLAG_GRAY)) { |
| 1071 | leftu = s->hdsp.add_hfyu_left_pred(p->data[1] + 1, s->temp[1], width2 - 1, leftu); |
| 1072 | leftv = s->hdsp.add_hfyu_left_pred(p->data[2] + 1, s->temp[2], width2 - 1, leftv); |
| 1073 | } |
| 1074 | |
| 1075 | cy = y = 1; |
| 1076 | |
| 1077 | /* second line is left predicted for interlaced case */ |
| 1078 | if (s->interlaced) { |
| 1079 | decode_422_bitstream(s, width); |
| 1080 | lefty = s->hdsp.add_hfyu_left_pred(p->data[0] + p->linesize[0], |
| 1081 | s->temp[0], width, lefty); |
| 1082 | if (!(s->flags & CODEC_FLAG_GRAY)) { |
| 1083 | leftu = s->hdsp.add_hfyu_left_pred(p->data[1] + p->linesize[2], s->temp[1], width2, leftu); |
| 1084 | leftv = s->hdsp.add_hfyu_left_pred(p->data[2] + p->linesize[1], s->temp[2], width2, leftv); |
| 1085 | } |
| 1086 | y++; |
| 1087 | cy++; |
| 1088 | } |
| 1089 | |
| 1090 | /* next 4 pixels are left predicted too */ |
| 1091 | decode_422_bitstream(s, 4); |
| 1092 | lefty = s->hdsp.add_hfyu_left_pred(p->data[0] + fake_ystride, |
| 1093 | s->temp[0], 4, lefty); |
| 1094 | if (!(s->flags & CODEC_FLAG_GRAY)) { |
| 1095 | leftu = s->hdsp.add_hfyu_left_pred(p->data[1] + fake_ustride, s->temp[1], 2, leftu); |
| 1096 | leftv = s->hdsp.add_hfyu_left_pred(p->data[2] + fake_vstride, s->temp[2], 2, leftv); |
| 1097 | } |
| 1098 | |
| 1099 | /* next line except the first 4 pixels is median predicted */ |
| 1100 | lefttopy = p->data[0][3]; |
| 1101 | decode_422_bitstream(s, width - 4); |
| 1102 | s->hdsp.add_hfyu_median_pred(p->data[0] + fake_ystride + 4, |
| 1103 | p->data[0] + 4, s->temp[0], |
| 1104 | width - 4, &lefty, &lefttopy); |
| 1105 | if (!(s->flags & CODEC_FLAG_GRAY)) { |
| 1106 | lefttopu = p->data[1][1]; |
| 1107 | lefttopv = p->data[2][1]; |
| 1108 | s->hdsp.add_hfyu_median_pred(p->data[1] + fake_ustride + 2, p->data[1] + 2, s->temp[1], width2 - 2, &leftu, &lefttopu); |
| 1109 | s->hdsp.add_hfyu_median_pred(p->data[2] + fake_vstride + 2, p->data[2] + 2, s->temp[2], width2 - 2, &leftv, &lefttopv); |
| 1110 | } |
| 1111 | y++; |
| 1112 | cy++; |
| 1113 | |
| 1114 | for (; y < height; y++, cy++) { |
| 1115 | uint8_t *ydst, *udst, *vdst; |
| 1116 | |
| 1117 | if (s->bitstream_bpp == 12) { |
| 1118 | while (2 * cy > y) { |
| 1119 | decode_gray_bitstream(s, width); |
| 1120 | ydst = p->data[0] + p->linesize[0] * y; |
| 1121 | s->hdsp.add_hfyu_median_pred(ydst, ydst - fake_ystride, |
| 1122 | s->temp[0], width, |
| 1123 | &lefty, &lefttopy); |
| 1124 | y++; |
| 1125 | } |
| 1126 | if (y >= height) |
| 1127 | break; |
| 1128 | } |
| 1129 | draw_slice(s, p, y); |
| 1130 | |
| 1131 | decode_422_bitstream(s, width); |
| 1132 | |
| 1133 | ydst = p->data[0] + p->linesize[0] * y; |
| 1134 | udst = p->data[1] + p->linesize[1] * cy; |
| 1135 | vdst = p->data[2] + p->linesize[2] * cy; |
| 1136 | |
| 1137 | s->hdsp.add_hfyu_median_pred(ydst, ydst - fake_ystride, |
| 1138 | s->temp[0], width, |
| 1139 | &lefty, &lefttopy); |
| 1140 | if (!(s->flags & CODEC_FLAG_GRAY)) { |
| 1141 | s->hdsp.add_hfyu_median_pred(udst, udst - fake_ustride, s->temp[1], width2, &leftu, &lefttopu); |
| 1142 | s->hdsp.add_hfyu_median_pred(vdst, vdst - fake_vstride, s->temp[2], width2, &leftv, &lefttopv); |
| 1143 | } |
| 1144 | } |
| 1145 | |
| 1146 | draw_slice(s, p, height); |
| 1147 | break; |
| 1148 | } |
| 1149 | } |
| 1150 | } else { |
| 1151 | int y; |
| 1152 | uint8_t left[4]; |
| 1153 | const int last_line = (height - 1) * p->linesize[0]; |
| 1154 | |
| 1155 | if (s->bitstream_bpp == 32) { |
| 1156 | left[A] = p->data[0][last_line + A] = get_bits(&s->gb, 8); |
| 1157 | left[R] = p->data[0][last_line + R] = get_bits(&s->gb, 8); |
| 1158 | left[G] = p->data[0][last_line + G] = get_bits(&s->gb, 8); |
| 1159 | left[B] = p->data[0][last_line + B] = get_bits(&s->gb, 8); |
| 1160 | } else { |
| 1161 | left[R] = p->data[0][last_line + R] = get_bits(&s->gb, 8); |
| 1162 | left[G] = p->data[0][last_line + G] = get_bits(&s->gb, 8); |
| 1163 | left[B] = p->data[0][last_line + B] = get_bits(&s->gb, 8); |
| 1164 | left[A] = p->data[0][last_line + A] = 255; |
| 1165 | skip_bits(&s->gb, 8); |
| 1166 | } |
| 1167 | |
| 1168 | if (s->bgr32) { |
| 1169 | switch (s->predictor) { |
| 1170 | case LEFT: |
| 1171 | case PLANE: |
| 1172 | decode_bgr_bitstream(s, width - 1); |
| 1173 | s->hdsp.add_hfyu_left_pred_bgr32(p->data[0] + last_line + 4, |
| 1174 | s->temp[0], width - 1, left); |
| 1175 | |
| 1176 | for (y = s->height - 2; y >= 0; y--) { // Yes it is stored upside down. |
| 1177 | decode_bgr_bitstream(s, width); |
| 1178 | |
| 1179 | s->hdsp.add_hfyu_left_pred_bgr32(p->data[0] + p->linesize[0] * y, |
| 1180 | s->temp[0], width, left); |
| 1181 | if (s->predictor == PLANE) { |
| 1182 | if (s->bitstream_bpp != 32) |
| 1183 | left[A] = 0; |
| 1184 | if ((y & s->interlaced) == 0 && |
| 1185 | y < s->height - 1 - s->interlaced) { |
| 1186 | s->hdsp.add_bytes(p->data[0] + p->linesize[0] * y, |
| 1187 | p->data[0] + p->linesize[0] * y + |
| 1188 | fake_ystride, fake_ystride); |
| 1189 | } |
| 1190 | } |
| 1191 | } |
| 1192 | // just 1 large slice as this is not possible in reverse order |
| 1193 | draw_slice(s, p, height); |
| 1194 | break; |
| 1195 | default: |
| 1196 | av_log(avctx, AV_LOG_ERROR, |
| 1197 | "prediction type not supported!\n"); |
| 1198 | } |
| 1199 | } else { |
| 1200 | av_log(avctx, AV_LOG_ERROR, |
| 1201 | "BGR24 output is not implemented yet\n"); |
| 1202 | return AVERROR_PATCHWELCOME; |
| 1203 | } |
| 1204 | } |
| 1205 | emms_c(); |
| 1206 | |
| 1207 | *got_frame = 1; |
| 1208 | |
| 1209 | return (get_bits_count(&s->gb) + 31) / 32 * 4 + table_size; |
| 1210 | } |
| 1211 | |
| 1212 | static av_cold int decode_end(AVCodecContext *avctx) |
| 1213 | { |
| 1214 | HYuvContext *s = avctx->priv_data; |
| 1215 | int i; |
| 1216 | |
| 1217 | ff_huffyuv_common_end(s); |
| 1218 | av_freep(&s->bitstream_buffer); |
| 1219 | |
| 1220 | for (i = 0; i < 8; i++) |
| 1221 | ff_free_vlc(&s->vlc[i]); |
| 1222 | |
| 1223 | return 0; |
| 1224 | } |
| 1225 | |
| 1226 | AVCodec ff_huffyuv_decoder = { |
| 1227 | .name = "huffyuv", |
| 1228 | .long_name = NULL_IF_CONFIG_SMALL("Huffyuv / HuffYUV"), |
| 1229 | .type = AVMEDIA_TYPE_VIDEO, |
| 1230 | .id = AV_CODEC_ID_HUFFYUV, |
| 1231 | .priv_data_size = sizeof(HYuvContext), |
| 1232 | .init = decode_init, |
| 1233 | .close = decode_end, |
| 1234 | .decode = decode_frame, |
| 1235 | .capabilities = CODEC_CAP_DR1 | CODEC_CAP_DRAW_HORIZ_BAND | |
| 1236 | CODEC_CAP_FRAME_THREADS, |
| 1237 | .init_thread_copy = ONLY_IF_THREADS_ENABLED(decode_init_thread_copy), |
| 1238 | }; |
| 1239 | |
| 1240 | #if CONFIG_FFVHUFF_DECODER |
| 1241 | AVCodec ff_ffvhuff_decoder = { |
| 1242 | .name = "ffvhuff", |
| 1243 | .long_name = NULL_IF_CONFIG_SMALL("Huffyuv FFmpeg variant"), |
| 1244 | .type = AVMEDIA_TYPE_VIDEO, |
| 1245 | .id = AV_CODEC_ID_FFVHUFF, |
| 1246 | .priv_data_size = sizeof(HYuvContext), |
| 1247 | .init = decode_init, |
| 1248 | .close = decode_end, |
| 1249 | .decode = decode_frame, |
| 1250 | .capabilities = CODEC_CAP_DR1 | CODEC_CAP_DRAW_HORIZ_BAND | |
| 1251 | CODEC_CAP_FRAME_THREADS, |
| 1252 | .init_thread_copy = ONLY_IF_THREADS_ENABLED(decode_init_thread_copy), |
| 1253 | }; |
| 1254 | #endif /* CONFIG_FFVHUFF_DECODER */ |