| @@ -0,0 +1,479 @@ |
| 1 | +/* |
| 2 | + * NotchLC decoder |
| 3 | + * Copyright (c) 2020 Paul B Mahol |
| 4 | + * |
| 5 | + * This file is part of FFmpeg. |
| 6 | + * |
| 7 | + * FFmpeg is free software; you can redistribute it and/or |
| 8 | + * modify it under the terms of the GNU Lesser General Public |
| 9 | + * License as published by the Free Software Foundation; either |
| 10 | + * version 2.1 of the License, or (at your option) any later version. |
| 11 | + * |
| 12 | + * FFmpeg is distributed in the hope that it will be useful, |
| 13 | + * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 | + * Lesser General Public License for more details. |
| 16 | + * |
| 17 | + * You should have received a copy of the GNU Lesser General Public |
| 18 | + * License along with FFmpeg; if not, write to the Free Software |
| 19 | + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 20 | + */ |
| 21 | + |
| 22 | +#include <stdio.h> |
| 23 | +#include <stdlib.h> |
| 24 | +#include <string.h> |
| 25 | + |
| 26 | +#define BITSTREAM_READER_LE |
| 27 | +#include "libavutil/intreadwrite.h" |
| 28 | +#include "avcodec.h" |
| 29 | +#include "bytestream.h" |
| 30 | +#include "get_bits.h" |
| 31 | +#include "internal.h" |
| 32 | +#include "lzf.h" |
| 33 | +#include "thread.h" |
| 34 | + |
| 35 | +typedef struct NotchLCContext { |
| 36 | + unsigned compressed_size; |
| 37 | + unsigned format; |
| 38 | + |
| 39 | + uint8_t *uncompressed_buffer; |
| 40 | + unsigned uncompressed_size; |
| 41 | + |
| 42 | + uint8_t *lzf_buffer; |
| 43 | + int64_t lzf_size; |
| 44 | + |
| 45 | + unsigned texture_size_x; |
| 46 | + unsigned texture_size_y; |
| 47 | + unsigned y_data_row_offsets; |
| 48 | + unsigned uv_offset_data_offset; |
| 49 | + unsigned y_control_data_offset; |
| 50 | + unsigned a_control_word_offset; |
| 51 | + unsigned y_data_offset; |
| 52 | + unsigned uv_data_offset; |
| 53 | + unsigned y_data_size; |
| 54 | + unsigned uv_count_size; |
| 55 | + unsigned uv_count_offset; |
| 56 | + unsigned a_count_size; |
| 57 | + unsigned data_end; |
| 58 | + |
| 59 | + GetByteContext gb; |
| 60 | + PutByteContext pb; |
| 61 | +} NotchLCContext; |
| 62 | + |
| 63 | +static av_cold int decode_init(AVCodecContext *avctx) |
| 64 | +{ |
| 65 | + avctx->pix_fmt = AV_PIX_FMT_YUV444P12; |
| 66 | + avctx->color_range = AVCOL_RANGE_JPEG; |
| 67 | + avctx->colorspace = AVCOL_SPC_RGB; |
| 68 | + avctx->color_primaries = AVCOL_PRI_BT709; |
| 69 | + avctx->color_trc = AVCOL_TRC_IEC61966_2_1; |
| 70 | + |
| 71 | + return 0; |
| 72 | +} |
| 73 | + |
| 74 | +#define HISTORY_SIZE (64 * 1024) |
| 75 | + |
| 76 | +static int lz4_decompress(AVCodecContext *avctx, |
| 77 | + GetByteContext *gb, |
| 78 | + PutByteContext *pb) |
| 79 | +{ |
| 80 | + unsigned reference_pos, match_length, delta, pos = 0; |
| 81 | + uint8_t history[64 * 1024]; |
| 82 | + |
| 83 | + while (bytestream2_get_bytes_left(gb) > 0) { |
| 84 | + uint8_t token = bytestream2_get_byte(gb); |
| 85 | + unsigned num_literals = token >> 4; |
| 86 | + |
| 87 | + if (num_literals == 15) { |
| 88 | + unsigned char current; |
| 89 | + do { |
| 90 | + current = bytestream2_get_byte(gb); |
| 91 | + num_literals += current; |
| 92 | + } while (current == 255); |
| 93 | + } |
| 94 | + |
| 95 | + if (pos + num_literals < HISTORY_SIZE) { |
| 96 | + bytestream2_get_buffer(gb, history + pos, num_literals); |
| 97 | + pos += num_literals; |
| 98 | + } else { |
| 99 | + while (num_literals-- > 0) { |
| 100 | + history[pos++] = bytestream2_get_byte(gb); |
| 101 | + if (pos == HISTORY_SIZE) { |
| 102 | + bytestream2_put_buffer(pb, history, HISTORY_SIZE); |
| 103 | + pos = 0; |
| 104 | + } |
| 105 | + } |
| 106 | + } |
| 107 | + |
| 108 | + if (bytestream2_get_bytes_left(gb) <= 0) |
| 109 | + break; |
| 110 | + |
| 111 | + delta = bytestream2_get_byte(gb); |
| 112 | + delta |= (unsigned)bytestream2_get_byte(gb) << 8; |
| 113 | + if (delta == 0) |
| 114 | + return 0; |
| 115 | + match_length = 4 + (token & 0x0F); |
| 116 | + if (match_length == 4 + 0x0F) { |
| 117 | + uint8_t current; |
| 118 | + |
| 119 | + do { |
| 120 | + current = bytestream2_get_byte(gb); |
| 121 | + match_length += current; |
| 122 | + } while (current == 255); |
| 123 | + } |
| 124 | + reference_pos = (pos >= delta) ? (pos - delta) : (HISTORY_SIZE + pos - delta); |
| 125 | + if (pos + match_length < HISTORY_SIZE && reference_pos + match_length < HISTORY_SIZE) { |
| 126 | + if (pos >= reference_pos + match_length || reference_pos >= pos + match_length) { |
| 127 | + memcpy(history + pos, history + reference_pos, match_length); |
| 128 | + pos += match_length; |
| 129 | + } else { |
| 130 | + while (match_length-- > 0) |
| 131 | + history[pos++] = history[reference_pos++]; |
| 132 | + } |
| 133 | + } else { |
| 134 | + while (match_length-- > 0) { |
| 135 | + history[pos++] = history[reference_pos++]; |
| 136 | + if (pos == HISTORY_SIZE) { |
| 137 | + bytestream2_put_buffer(pb, history, HISTORY_SIZE); |
| 138 | + pos = 0; |
| 139 | + } |
| 140 | + reference_pos %= HISTORY_SIZE; |
| 141 | + } |
| 142 | + } |
| 143 | + } |
| 144 | + |
| 145 | + bytestream2_put_buffer(pb, history, pos); |
| 146 | + |
| 147 | + return bytestream2_tell_p(pb); |
| 148 | +} |
| 149 | + |
| 150 | +static int decode_blocks(AVCodecContext *avctx, AVFrame *p, ThreadFrame *frame, |
| 151 | + unsigned uncompressed_size) |
| 152 | +{ |
| 153 | + NotchLCContext *s = avctx->priv_data; |
| 154 | + GetByteContext rgb, dgb, *gb = &s->gb; |
| 155 | + GetBitContext bit; |
| 156 | + int ylinesize, ulinesize, vlinesize, alinesize; |
| 157 | + uint16_t *dsty, *dstu, *dstv, *dsta; |
| 158 | + int ret; |
| 159 | + |
| 160 | + s->texture_size_x = bytestream2_get_le32(gb); |
| 161 | + s->texture_size_y = bytestream2_get_le32(gb); |
| 162 | + |
| 163 | + ret = ff_set_dimensions(avctx, s->texture_size_x, s->texture_size_y); |
| 164 | + if (ret < 0) |
| 165 | + return ret; |
| 166 | + |
| 167 | + s->uv_offset_data_offset = bytestream2_get_le32(gb); |
| 168 | + if (s->uv_offset_data_offset >= UINT_MAX / 4) |
| 169 | + return AVERROR_INVALIDDATA; |
| 170 | + s->uv_offset_data_offset *= 4; |
| 171 | + if (s->uv_offset_data_offset >= uncompressed_size) |
| 172 | + return AVERROR_INVALIDDATA; |
| 173 | + |
| 174 | + s->y_control_data_offset = bytestream2_get_le32(gb); |
| 175 | + if (s->y_control_data_offset >= UINT_MAX / 4) |
| 176 | + return AVERROR_INVALIDDATA; |
| 177 | + s->y_control_data_offset *= 4; |
| 178 | + if (s->y_control_data_offset >= uncompressed_size) |
| 179 | + return AVERROR_INVALIDDATA; |
| 180 | + |
| 181 | + s->a_control_word_offset = bytestream2_get_le32(gb); |
| 182 | + if (s->a_control_word_offset >= UINT_MAX / 4) |
| 183 | + return AVERROR_INVALIDDATA; |
| 184 | + s->a_control_word_offset *= 4; |
| 185 | + if (s->a_control_word_offset >= uncompressed_size) |
| 186 | + return AVERROR_INVALIDDATA; |
| 187 | + |
| 188 | + s->uv_data_offset = bytestream2_get_le32(gb); |
| 189 | + if (s->uv_data_offset >= UINT_MAX / 4) |
| 190 | + return AVERROR_INVALIDDATA; |
| 191 | + s->uv_data_offset *= 4; |
| 192 | + if (s->uv_data_offset >= uncompressed_size) |
| 193 | + return AVERROR_INVALIDDATA; |
| 194 | + |
| 195 | + s->y_data_size = bytestream2_get_le32(gb); |
| 196 | + if (s->y_data_size >= UINT_MAX / 4) |
| 197 | + return AVERROR_INVALIDDATA; |
| 198 | + |
| 199 | + s->uv_count_size = bytestream2_get_le32(gb); |
| 200 | + if (s->uv_count_size >= UINT_MAX / 4) |
| 201 | + return AVERROR_INVALIDDATA; |
| 202 | + s->uv_count_size *= 4; |
| 203 | + if (s->uv_count_size >= uncompressed_size) |
| 204 | + return AVERROR_INVALIDDATA; |
| 205 | + |
| 206 | + s->a_count_size = bytestream2_get_le32(gb); |
| 207 | + if (s->a_count_size >= UINT_MAX / 4) |
| 208 | + return AVERROR_INVALIDDATA; |
| 209 | + s->a_count_size *= 4; |
| 210 | + if (s->a_count_size >= uncompressed_size) |
| 211 | + return AVERROR_INVALIDDATA; |
| 212 | + |
| 213 | + s->data_end = bytestream2_get_le32(gb); |
| 214 | + if (s->data_end > uncompressed_size) |
| 215 | + return AVERROR_INVALIDDATA; |
| 216 | + |
| 217 | + s->y_data_row_offsets = bytestream2_tell(gb); |
| 218 | + if (s->data_end <= s->y_data_size) |
| 219 | + return AVERROR_INVALIDDATA; |
| 220 | + s->y_data_offset = s->data_end - s->y_data_size; |
| 221 | + if (s->y_data_offset <= s->uv_count_size) |
| 222 | + return AVERROR_INVALIDDATA; |
| 223 | + s->uv_count_offset = s->y_data_offset - s->uv_count_size; |
| 224 | + |
| 225 | + if ((ret = ff_thread_get_buffer(avctx, frame, 0)) < 0) |
| 226 | + return ret; |
| 227 | + |
| 228 | + rgb = *gb; |
| 229 | + dgb = *gb; |
| 230 | + bytestream2_seek(&rgb, s->y_data_row_offsets, SEEK_SET); |
| 231 | + bytestream2_seek(gb, s->y_control_data_offset, SEEK_SET); |
| 232 | + |
| 233 | + dsty = (uint16_t *)p->data[0]; |
| 234 | + dsta = (uint16_t *)p->data[3]; |
| 235 | + ylinesize = p->linesize[0] / 2; |
| 236 | + alinesize = p->linesize[3] / 2; |
| 237 | + |
| 238 | + for (int y = 0; y < avctx->height; y += 4) { |
| 239 | + const unsigned row_offset = bytestream2_get_le32(&rgb); |
| 240 | + |
| 241 | + bytestream2_seek(&dgb, s->y_data_offset + row_offset, SEEK_SET); |
| 242 | + |
| 243 | + init_get_bits8(&bit, dgb.buffer, bytestream2_get_bytes_left(&dgb)); |
| 244 | + for (int x = 0; x < avctx->width; x += 4) { |
| 245 | + unsigned item = bytestream2_get_le32(gb); |
| 246 | + unsigned y_min = item & 4095; |
| 247 | + unsigned y_max = (item >> 12) & 4095; |
| 248 | + unsigned y_diff = y_max - y_min; |
| 249 | + unsigned control[4]; |
| 250 | + |
| 251 | + control[0] = (item >> 24) & 3; |
| 252 | + control[1] = (item >> 26) & 3; |
| 253 | + control[2] = (item >> 28) & 3; |
| 254 | + control[3] = (item >> 30) & 3; |
| 255 | + |
| 256 | + for (int i = 0; i < 4; i++) { |
| 257 | + const int nb_bits = control[i] + 1; |
| 258 | + const int div = (1 << nb_bits) - 1; |
| 259 | + const int add = div - 1; |
| 260 | + |
| 261 | + dsty[x + i * ylinesize + 0] = av_clip_uintp2(y_min + ((y_diff * get_bits(&bit, nb_bits) + add) / div), 12); |
| 262 | + dsty[x + i * ylinesize + 1] = av_clip_uintp2(y_min + ((y_diff * get_bits(&bit, nb_bits) + add) / div), 12); |
| 263 | + dsty[x + i * ylinesize + 2] = av_clip_uintp2(y_min + ((y_diff * get_bits(&bit, nb_bits) + add) / div), 12); |
| 264 | + dsty[x + i * ylinesize + 3] = av_clip_uintp2(y_min + ((y_diff * get_bits(&bit, nb_bits) + add) / div), 12); |
| 265 | + } |
| 266 | + } |
| 267 | + |
| 268 | + dsty += 4 * ylinesize; |
| 269 | + dsta += 4 * alinesize; |
| 270 | + } |
| 271 | + |
| 272 | + rgb = *gb; |
| 273 | + dgb = *gb; |
| 274 | + bytestream2_seek(&rgb, s->uv_offset_data_offset, SEEK_SET); |
| 275 | + bytestream2_seek(gb, s->a_control_word_offset, SEEK_SET); |
| 276 | + |
| 277 | + dstu = (uint16_t *)p->data[1]; |
| 278 | + dstv = (uint16_t *)p->data[2]; |
| 279 | + ulinesize = p->linesize[1] / 2; |
| 280 | + vlinesize = p->linesize[2] / 2; |
| 281 | + |
| 282 | + for (int y = 0; y < avctx->height; y += 16) { |
| 283 | + for (int x = 0; x < avctx->width; x += 16) { |
| 284 | + unsigned offset = bytestream2_get_le32(&rgb) * 4; |
| 285 | + int u[16][16] = { 0 }, v[16][16] = { 0 }; |
| 286 | + int u0, v0, u1, v1, udif, vdif; |
| 287 | + unsigned escape, is8x8, loc; |
| 288 | + |
| 289 | + bytestream2_seek(&dgb, s->uv_data_offset + offset, SEEK_SET); |
| 290 | + |
| 291 | + is8x8 = bytestream2_get_le16(&dgb); |
| 292 | + escape = bytestream2_get_le16(&dgb); |
| 293 | + |
| 294 | + if (escape == 0 && is8x8 == 0) { |
| 295 | + u0 = bytestream2_get_byte(&dgb); |
| 296 | + v0 = bytestream2_get_byte(&dgb); |
| 297 | + u1 = bytestream2_get_byte(&dgb); |
| 298 | + v1 = bytestream2_get_byte(&dgb); |
| 299 | + loc = bytestream2_get_le32(&dgb); |
| 300 | + u0 = (u0 << 4) | (u0 & 0xF); |
| 301 | + v0 = (v0 << 4) | (v0 & 0xF); |
| 302 | + u1 = (u1 << 4) | (u1 & 0xF); |
| 303 | + v1 = (v1 << 4) | (v1 & 0xF); |
| 304 | + udif = u1 - u0; |
| 305 | + vdif = v1 - v0; |
| 306 | + |
| 307 | + for (int i = 0; i < 16; i += 4) { |
| 308 | + for (int j = 0; j < 16; j += 4) { |
| 309 | + for (int ii = 0; ii < 4; ii++) { |
| 310 | + for (int jj = 0; jj < 4; jj++) { |
| 311 | + u[i + ii][j + jj] = u0 + ((udif * (int)(loc & 3) + 2) / 3); |
| 312 | + v[i + ii][j + jj] = v0 + ((vdif * (int)(loc & 3) + 2) / 3); |
| 313 | + } |
| 314 | + } |
| 315 | + |
| 316 | + loc >>= 2; |
| 317 | + } |
| 318 | + } |
| 319 | + } else { |
| 320 | + for (int i = 0; i < 16; i += 8) { |
| 321 | + for (int j = 0; j < 16; j += 8) { |
| 322 | + if (is8x8 & 1) { |
| 323 | + u0 = bytestream2_get_byte(&dgb); |
| 324 | + v0 = bytestream2_get_byte(&dgb); |
| 325 | + u1 = bytestream2_get_byte(&dgb); |
| 326 | + v1 = bytestream2_get_byte(&dgb); |
| 327 | + loc = bytestream2_get_le32(&dgb); |
| 328 | + u0 = (u0 << 4) | (u0 & 0xF); |
| 329 | + v0 = (v0 << 4) | (v0 & 0xF); |
| 330 | + u1 = (u1 << 4) | (u1 & 0xF); |
| 331 | + v1 = (v1 << 4) | (v1 & 0xF); |
| 332 | + udif = u1 - u0; |
| 333 | + vdif = v1 - v0; |
| 334 | + |
| 335 | + for (int ii = 0; ii < 8; ii += 2) { |
| 336 | + for (int jj = 0; jj < 8; jj += 2) { |
| 337 | + for (int iii = 0; iii < 2; iii++) { |
| 338 | + for (int jjj = 0; jjj < 2; jjj++) { |
| 339 | + u[i + ii + iii][j + jj + jjj] = u0 + ((udif * (int)(loc & 3) + 2) / 3); |
| 340 | + v[i + ii + iii][j + jj + jjj] = v0 + ((vdif * (int)(loc & 3) + 2) / 3); |
| 341 | + } |
| 342 | + } |
| 343 | + |
| 344 | + loc >>= 2; |
| 345 | + } |
| 346 | + } |
| 347 | + } else if (escape) { |
| 348 | + for (int ii = 0; ii < 8; ii += 4) { |
| 349 | + for (int jj = 0; jj < 8; jj += 4) { |
| 350 | + u0 = bytestream2_get_byte(&dgb); |
| 351 | + v0 = bytestream2_get_byte(&dgb); |
| 352 | + u1 = bytestream2_get_byte(&dgb); |
| 353 | + v1 = bytestream2_get_byte(&dgb); |
| 354 | + loc = bytestream2_get_le32(&dgb); |
| 355 | + u0 = (u0 << 4) | (u0 & 0xF); |
| 356 | + v0 = (v0 << 4) | (v0 & 0xF); |
| 357 | + u1 = (u1 << 4) | (u1 & 0xF); |
| 358 | + v1 = (v1 << 4) | (v1 & 0xF); |
| 359 | + udif = u1 - u0; |
| 360 | + vdif = v1 - v0; |
| 361 | + |
| 362 | + for (int iii = 0; iii < 4; iii++) { |
| 363 | + for (int jjj = 0; jjj < 4; jjj++) { |
| 364 | + u[i + ii + iii][j + jj + jjj] = u0 + ((udif * (int)(loc & 3) + 2) / 3); |
| 365 | + v[i + ii + iii][j + jj + jjj] = v0 + ((vdif * (int)(loc & 3) + 2) / 3); |
| 366 | + |
| 367 | + loc >>= 2; |
| 368 | + } |
| 369 | + } |
| 370 | + } |
| 371 | + } |
| 372 | + } |
| 373 | + |
| 374 | + is8x8 >>= 1; |
| 375 | + } |
| 376 | + } |
| 377 | + } |
| 378 | + |
| 379 | + for (int i = 0; i < 16; i++) { |
| 380 | + for (int j = 0; j < 16; j++) { |
| 381 | + dstu[x + i * ulinesize + j] = u[i][j]; |
| 382 | + dstv[x + i * vlinesize + j] = v[i][j]; |
| 383 | + } |
| 384 | + } |
| 385 | + } |
| 386 | + |
| 387 | + dstu += 16 * ulinesize; |
| 388 | + dstv += 16 * vlinesize; |
| 389 | + } |
| 390 | + |
| 391 | + return 0; |
| 392 | +} |
| 393 | + |
| 394 | +static int decode_frame(AVCodecContext *avctx, |
| 395 | + void *data, int *got_frame, |
| 396 | + AVPacket *avpkt) |
| 397 | +{ |
| 398 | + NotchLCContext *s = avctx->priv_data; |
| 399 | + ThreadFrame frame = { .f = data }; |
| 400 | + GetByteContext *gb = &s->gb; |
| 401 | + PutByteContext *pb = &s->pb; |
| 402 | + unsigned uncompressed_size; |
| 403 | + AVFrame *p = data; |
| 404 | + int ret; |
| 405 | + |
| 406 | + if (avpkt->size <= 40) |
| 407 | + return AVERROR_INVALIDDATA; |
| 408 | + |
| 409 | + bytestream2_init(gb, avpkt->data, avpkt->size); |
| 410 | + |
| 411 | + if (bytestream2_get_le32(gb) != MKBETAG('N','L','C','1')) |
| 412 | + return AVERROR_INVALIDDATA; |
| 413 | + |
| 414 | + uncompressed_size = bytestream2_get_le32(gb); |
| 415 | + s->compressed_size = bytestream2_get_le32(gb); |
| 416 | + s->format = bytestream2_get_le32(gb); |
| 417 | + |
| 418 | + if (s->format > 2) |
| 419 | + return AVERROR_PATCHWELCOME; |
| 420 | + |
| 421 | + if (s->format == 0) { |
| 422 | + ret = ff_lzf_uncompress(gb, &s->lzf_buffer, &s->lzf_size); |
| 423 | + if (ret < 0) |
| 424 | + return ret; |
| 425 | + |
| 426 | + if (uncompressed_size > s->lzf_size) |
| 427 | + return AVERROR_INVALIDDATA; |
| 428 | + |
| 429 | + bytestream2_init(gb, s->lzf_buffer, uncompressed_size); |
| 430 | + } else if (s->format == 1) { |
| 431 | + av_fast_padded_malloc(&s->uncompressed_buffer, &s->uncompressed_size, |
| 432 | + uncompressed_size); |
| 433 | + if (!s->uncompressed_buffer) |
| 434 | + return AVERROR(ENOMEM); |
| 435 | + |
| 436 | + bytestream2_init_writer(pb, s->uncompressed_buffer, s->uncompressed_size); |
| 437 | + |
| 438 | + ret = lz4_decompress(avctx, gb, pb); |
| 439 | + if (ret != uncompressed_size) |
| 440 | + return AVERROR_INVALIDDATA; |
| 441 | + |
| 442 | + bytestream2_init(gb, s->uncompressed_buffer, uncompressed_size); |
| 443 | + } |
| 444 | + |
| 445 | + ret = decode_blocks(avctx, p, &frame, uncompressed_size); |
| 446 | + if (ret < 0) |
| 447 | + return ret; |
| 448 | + |
| 449 | + p->pict_type = AV_PICTURE_TYPE_I; |
| 450 | + p->key_frame = 1; |
| 451 | + |
| 452 | + *got_frame = 1; |
| 453 | + |
| 454 | + return avpkt->size; |
| 455 | +} |
| 456 | + |
| 457 | +static av_cold int decode_end(AVCodecContext *avctx) |
| 458 | +{ |
| 459 | + NotchLCContext *s = avctx->priv_data; |
| 460 | + |
| 461 | + av_freep(&s->uncompressed_buffer); |
| 462 | + s->uncompressed_size = 0; |
| 463 | + av_freep(&s->lzf_buffer); |
| 464 | + s->lzf_size = 0; |
| 465 | + |
| 466 | + return 0; |
| 467 | +} |
| 468 | + |
| 469 | +AVCodec ff_notchlc_decoder = { |
| 470 | + .name = "notchlc", |
| 471 | + .long_name = NULL_IF_CONFIG_SMALL("NotchLC"), |
| 472 | + .type = AVMEDIA_TYPE_VIDEO, |
| 473 | + .id = AV_CODEC_ID_NOTCHLC, |
| 474 | + .priv_data_size = sizeof(NotchLCContext), |
| 475 | + .init = decode_init, |
| 476 | + .close = decode_end, |
| 477 | + .decode = decode_frame, |
| 478 | + .capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS, |
| 479 | +}; |