| 1 | /* |
| 2 | * HEVC Parameter Set decoding |
| 3 | * |
| 4 | * Copyright (C) 2012 - 2103 Guillaume Martres |
| 5 | * Copyright (C) 2012 - 2103 Mickael Raulet |
| 6 | * Copyright (C) 2012 - 2013 Gildas Cocherel |
| 7 | * Copyright (C) 2013 Vittorio Giovara |
| 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 | |
| 26 | #include "libavutil/imgutils.h" |
| 27 | #include "golomb.h" |
| 28 | #include "hevc.h" |
| 29 | |
| 30 | static const uint8_t default_scaling_list_intra[] = { |
| 31 | 16, 16, 16, 16, 17, 18, 21, 24, |
| 32 | 16, 16, 16, 16, 17, 19, 22, 25, |
| 33 | 16, 16, 17, 18, 20, 22, 25, 29, |
| 34 | 16, 16, 18, 21, 24, 27, 31, 36, |
| 35 | 17, 17, 20, 24, 30, 35, 41, 47, |
| 36 | 18, 19, 22, 27, 35, 44, 54, 65, |
| 37 | 21, 22, 25, 31, 41, 54, 70, 88, |
| 38 | 24, 25, 29, 36, 47, 65, 88, 115 |
| 39 | }; |
| 40 | |
| 41 | static const uint8_t default_scaling_list_inter[] = { |
| 42 | 16, 16, 16, 16, 17, 18, 20, 24, |
| 43 | 16, 16, 16, 17, 18, 20, 24, 25, |
| 44 | 16, 16, 17, 18, 20, 24, 25, 28, |
| 45 | 16, 17, 18, 20, 24, 25, 28, 33, |
| 46 | 17, 18, 20, 24, 25, 28, 33, 41, |
| 47 | 18, 20, 24, 25, 28, 33, 41, 54, |
| 48 | 20, 24, 25, 28, 33, 41, 54, 71, |
| 49 | 24, 25, 28, 33, 41, 54, 71, 91 |
| 50 | }; |
| 51 | |
| 52 | static const AVRational vui_sar[] = { |
| 53 | { 0, 1 }, |
| 54 | { 1, 1 }, |
| 55 | { 12, 11 }, |
| 56 | { 10, 11 }, |
| 57 | { 16, 11 }, |
| 58 | { 40, 33 }, |
| 59 | { 24, 11 }, |
| 60 | { 20, 11 }, |
| 61 | { 32, 11 }, |
| 62 | { 80, 33 }, |
| 63 | { 18, 11 }, |
| 64 | { 15, 11 }, |
| 65 | { 64, 33 }, |
| 66 | { 160, 99 }, |
| 67 | { 4, 3 }, |
| 68 | { 3, 2 }, |
| 69 | { 2, 1 }, |
| 70 | }; |
| 71 | |
| 72 | int ff_hevc_decode_short_term_rps(HEVCContext *s, ShortTermRPS *rps, |
| 73 | const HEVCSPS *sps, int is_slice_header) |
| 74 | { |
| 75 | HEVCLocalContext *lc = s->HEVClc; |
| 76 | uint8_t rps_predict = 0; |
| 77 | int delta_poc; |
| 78 | int k0 = 0; |
| 79 | int k1 = 0; |
| 80 | int k = 0; |
| 81 | int i; |
| 82 | |
| 83 | GetBitContext *gb = &lc->gb; |
| 84 | |
| 85 | if (rps != sps->st_rps && sps->nb_st_rps) |
| 86 | rps_predict = get_bits1(gb); |
| 87 | |
| 88 | if (rps_predict) { |
| 89 | const ShortTermRPS *rps_ridx; |
| 90 | int delta_rps; |
| 91 | unsigned abs_delta_rps; |
| 92 | uint8_t use_delta_flag = 0; |
| 93 | uint8_t delta_rps_sign; |
| 94 | |
| 95 | if (is_slice_header) { |
| 96 | unsigned int delta_idx = get_ue_golomb_long(gb) + 1; |
| 97 | if (delta_idx > sps->nb_st_rps) { |
| 98 | av_log(s->avctx, AV_LOG_ERROR, |
| 99 | "Invalid value of delta_idx in slice header RPS: %d > %d.\n", |
| 100 | delta_idx, sps->nb_st_rps); |
| 101 | return AVERROR_INVALIDDATA; |
| 102 | } |
| 103 | rps_ridx = &sps->st_rps[sps->nb_st_rps - delta_idx]; |
| 104 | } else |
| 105 | rps_ridx = &sps->st_rps[rps - sps->st_rps - 1]; |
| 106 | |
| 107 | delta_rps_sign = get_bits1(gb); |
| 108 | abs_delta_rps = get_ue_golomb_long(gb) + 1; |
| 109 | if (abs_delta_rps < 1 || abs_delta_rps > 32768) { |
| 110 | av_log(s->avctx, AV_LOG_ERROR, |
| 111 | "Invalid value of abs_delta_rps: %d\n", |
| 112 | abs_delta_rps); |
| 113 | return AVERROR_INVALIDDATA; |
| 114 | } |
| 115 | delta_rps = (1 - (delta_rps_sign << 1)) * abs_delta_rps; |
| 116 | for (i = 0; i <= rps_ridx->num_delta_pocs; i++) { |
| 117 | int used = rps->used[k] = get_bits1(gb); |
| 118 | |
| 119 | if (!used) |
| 120 | use_delta_flag = get_bits1(gb); |
| 121 | |
| 122 | if (used || use_delta_flag) { |
| 123 | if (i < rps_ridx->num_delta_pocs) |
| 124 | delta_poc = delta_rps + rps_ridx->delta_poc[i]; |
| 125 | else |
| 126 | delta_poc = delta_rps; |
| 127 | rps->delta_poc[k] = delta_poc; |
| 128 | if (delta_poc < 0) |
| 129 | k0++; |
| 130 | else |
| 131 | k1++; |
| 132 | k++; |
| 133 | } |
| 134 | } |
| 135 | |
| 136 | rps->num_delta_pocs = k; |
| 137 | rps->num_negative_pics = k0; |
| 138 | // sort in increasing order (smallest first) |
| 139 | if (rps->num_delta_pocs != 0) { |
| 140 | int used, tmp; |
| 141 | for (i = 1; i < rps->num_delta_pocs; i++) { |
| 142 | delta_poc = rps->delta_poc[i]; |
| 143 | used = rps->used[i]; |
| 144 | for (k = i - 1; k >= 0; k--) { |
| 145 | tmp = rps->delta_poc[k]; |
| 146 | if (delta_poc < tmp) { |
| 147 | rps->delta_poc[k + 1] = tmp; |
| 148 | rps->used[k + 1] = rps->used[k]; |
| 149 | rps->delta_poc[k] = delta_poc; |
| 150 | rps->used[k] = used; |
| 151 | } |
| 152 | } |
| 153 | } |
| 154 | } |
| 155 | if ((rps->num_negative_pics >> 1) != 0) { |
| 156 | int used; |
| 157 | k = rps->num_negative_pics - 1; |
| 158 | // flip the negative values to largest first |
| 159 | for (i = 0; i < rps->num_negative_pics >> 1; i++) { |
| 160 | delta_poc = rps->delta_poc[i]; |
| 161 | used = rps->used[i]; |
| 162 | rps->delta_poc[i] = rps->delta_poc[k]; |
| 163 | rps->used[i] = rps->used[k]; |
| 164 | rps->delta_poc[k] = delta_poc; |
| 165 | rps->used[k] = used; |
| 166 | k--; |
| 167 | } |
| 168 | } |
| 169 | } else { |
| 170 | unsigned int prev, nb_positive_pics; |
| 171 | rps->num_negative_pics = get_ue_golomb_long(gb); |
| 172 | nb_positive_pics = get_ue_golomb_long(gb); |
| 173 | |
| 174 | if (rps->num_negative_pics >= MAX_REFS || |
| 175 | nb_positive_pics >= MAX_REFS) { |
| 176 | av_log(s->avctx, AV_LOG_ERROR, "Too many refs in a short term RPS.\n"); |
| 177 | return AVERROR_INVALIDDATA; |
| 178 | } |
| 179 | |
| 180 | rps->num_delta_pocs = rps->num_negative_pics + nb_positive_pics; |
| 181 | if (rps->num_delta_pocs) { |
| 182 | prev = 0; |
| 183 | for (i = 0; i < rps->num_negative_pics; i++) { |
| 184 | delta_poc = get_ue_golomb_long(gb) + 1; |
| 185 | prev -= delta_poc; |
| 186 | rps->delta_poc[i] = prev; |
| 187 | rps->used[i] = get_bits1(gb); |
| 188 | } |
| 189 | prev = 0; |
| 190 | for (i = 0; i < nb_positive_pics; i++) { |
| 191 | delta_poc = get_ue_golomb_long(gb) + 1; |
| 192 | prev += delta_poc; |
| 193 | rps->delta_poc[rps->num_negative_pics + i] = prev; |
| 194 | rps->used[rps->num_negative_pics + i] = get_bits1(gb); |
| 195 | } |
| 196 | } |
| 197 | } |
| 198 | return 0; |
| 199 | } |
| 200 | |
| 201 | |
| 202 | static int decode_profile_tier_level(HEVCContext *s, PTLCommon *ptl) |
| 203 | { |
| 204 | int i; |
| 205 | HEVCLocalContext *lc = s->HEVClc; |
| 206 | GetBitContext *gb = &lc->gb; |
| 207 | |
| 208 | if (get_bits_left(gb) < 2+1+5 + 32 + 4 + 16 + 16 + 12) |
| 209 | return -1; |
| 210 | |
| 211 | ptl->profile_space = get_bits(gb, 2); |
| 212 | ptl->tier_flag = get_bits1(gb); |
| 213 | ptl->profile_idc = get_bits(gb, 5); |
| 214 | if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN) |
| 215 | av_log(s->avctx, AV_LOG_DEBUG, "Main profile bitstream\n"); |
| 216 | else if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN_10) |
| 217 | av_log(s->avctx, AV_LOG_DEBUG, "Main 10 profile bitstream\n"); |
| 218 | else if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN_STILL_PICTURE) |
| 219 | av_log(s->avctx, AV_LOG_DEBUG, "Main Still Picture profile bitstream\n"); |
| 220 | else if (ptl->profile_idc == FF_PROFILE_HEVC_REXT) |
| 221 | av_log(s->avctx, AV_LOG_DEBUG, "Range Extension profile bitstream\n"); |
| 222 | else |
| 223 | av_log(s->avctx, AV_LOG_WARNING, "Unknown HEVC profile: %d\n", ptl->profile_idc); |
| 224 | |
| 225 | for (i = 0; i < 32; i++) |
| 226 | ptl->profile_compatibility_flag[i] = get_bits1(gb); |
| 227 | ptl->progressive_source_flag = get_bits1(gb); |
| 228 | ptl->interlaced_source_flag = get_bits1(gb); |
| 229 | ptl->non_packed_constraint_flag = get_bits1(gb); |
| 230 | ptl->frame_only_constraint_flag = get_bits1(gb); |
| 231 | |
| 232 | skip_bits(gb, 16); // XXX_reserved_zero_44bits[0..15] |
| 233 | skip_bits(gb, 16); // XXX_reserved_zero_44bits[16..31] |
| 234 | skip_bits(gb, 12); // XXX_reserved_zero_44bits[32..43] |
| 235 | |
| 236 | return 0; |
| 237 | } |
| 238 | |
| 239 | static int parse_ptl(HEVCContext *s, PTL *ptl, int max_num_sub_layers) |
| 240 | { |
| 241 | int i; |
| 242 | HEVCLocalContext *lc = s->HEVClc; |
| 243 | GetBitContext *gb = &lc->gb; |
| 244 | if (decode_profile_tier_level(s, &ptl->general_ptl) < 0 || |
| 245 | get_bits_left(gb) < 8 + 8*2) { |
| 246 | av_log(s->avctx, AV_LOG_ERROR, "PTL information too short\n"); |
| 247 | return -1; |
| 248 | } |
| 249 | |
| 250 | ptl->general_ptl.level_idc = get_bits(gb, 8); |
| 251 | |
| 252 | for (i = 0; i < max_num_sub_layers - 1; i++) { |
| 253 | ptl->sub_layer_profile_present_flag[i] = get_bits1(gb); |
| 254 | ptl->sub_layer_level_present_flag[i] = get_bits1(gb); |
| 255 | } |
| 256 | |
| 257 | if (max_num_sub_layers - 1> 0) |
| 258 | for (i = max_num_sub_layers - 1; i < 8; i++) |
| 259 | skip_bits(gb, 2); // reserved_zero_2bits[i] |
| 260 | for (i = 0; i < max_num_sub_layers - 1; i++) { |
| 261 | if (ptl->sub_layer_profile_present_flag[i] && |
| 262 | decode_profile_tier_level(s, &ptl->sub_layer_ptl[i]) < 0) { |
| 263 | av_log(s->avctx, AV_LOG_ERROR, |
| 264 | "PTL information for sublayer %i too short\n", i); |
| 265 | return -1; |
| 266 | } |
| 267 | if (ptl->sub_layer_level_present_flag[i]) { |
| 268 | if (get_bits_left(gb) < 8) { |
| 269 | av_log(s->avctx, AV_LOG_ERROR, |
| 270 | "Not enough data for sublayer %i level_idc\n", i); |
| 271 | return -1; |
| 272 | } else |
| 273 | ptl->sub_layer_ptl[i].level_idc = get_bits(gb, 8); |
| 274 | } |
| 275 | } |
| 276 | |
| 277 | return 0; |
| 278 | } |
| 279 | |
| 280 | static void decode_sublayer_hrd(HEVCContext *s, unsigned int nb_cpb, |
| 281 | int subpic_params_present) |
| 282 | { |
| 283 | GetBitContext *gb = &s->HEVClc->gb; |
| 284 | int i; |
| 285 | |
| 286 | for (i = 0; i < nb_cpb; i++) { |
| 287 | get_ue_golomb_long(gb); // bit_rate_value_minus1 |
| 288 | get_ue_golomb_long(gb); // cpb_size_value_minus1 |
| 289 | |
| 290 | if (subpic_params_present) { |
| 291 | get_ue_golomb_long(gb); // cpb_size_du_value_minus1 |
| 292 | get_ue_golomb_long(gb); // bit_rate_du_value_minus1 |
| 293 | } |
| 294 | skip_bits1(gb); // cbr_flag |
| 295 | } |
| 296 | } |
| 297 | |
| 298 | static int decode_hrd(HEVCContext *s, int common_inf_present, |
| 299 | int max_sublayers) |
| 300 | { |
| 301 | GetBitContext *gb = &s->HEVClc->gb; |
| 302 | int nal_params_present = 0, vcl_params_present = 0; |
| 303 | int subpic_params_present = 0; |
| 304 | int i; |
| 305 | |
| 306 | if (common_inf_present) { |
| 307 | nal_params_present = get_bits1(gb); |
| 308 | vcl_params_present = get_bits1(gb); |
| 309 | |
| 310 | if (nal_params_present || vcl_params_present) { |
| 311 | subpic_params_present = get_bits1(gb); |
| 312 | |
| 313 | if (subpic_params_present) { |
| 314 | skip_bits(gb, 8); // tick_divisor_minus2 |
| 315 | skip_bits(gb, 5); // du_cpb_removal_delay_increment_length_minus1 |
| 316 | skip_bits(gb, 1); // sub_pic_cpb_params_in_pic_timing_sei_flag |
| 317 | skip_bits(gb, 5); // dpb_output_delay_du_length_minus1 |
| 318 | } |
| 319 | |
| 320 | skip_bits(gb, 4); // bit_rate_scale |
| 321 | skip_bits(gb, 4); // cpb_size_scale |
| 322 | |
| 323 | if (subpic_params_present) |
| 324 | skip_bits(gb, 4); // cpb_size_du_scale |
| 325 | |
| 326 | skip_bits(gb, 5); // initial_cpb_removal_delay_length_minus1 |
| 327 | skip_bits(gb, 5); // au_cpb_removal_delay_length_minus1 |
| 328 | skip_bits(gb, 5); // dpb_output_delay_length_minus1 |
| 329 | } |
| 330 | } |
| 331 | |
| 332 | for (i = 0; i < max_sublayers; i++) { |
| 333 | int low_delay = 0; |
| 334 | unsigned int nb_cpb = 1; |
| 335 | int fixed_rate = get_bits1(gb); |
| 336 | |
| 337 | if (!fixed_rate) |
| 338 | fixed_rate = get_bits1(gb); |
| 339 | |
| 340 | if (fixed_rate) |
| 341 | get_ue_golomb_long(gb); // elemental_duration_in_tc_minus1 |
| 342 | else |
| 343 | low_delay = get_bits1(gb); |
| 344 | |
| 345 | if (!low_delay) { |
| 346 | nb_cpb = get_ue_golomb_long(gb) + 1; |
| 347 | if (nb_cpb < 1 || nb_cpb > 32) { |
| 348 | av_log(s->avctx, AV_LOG_ERROR, "nb_cpb %d invalid\n", nb_cpb); |
| 349 | return AVERROR_INVALIDDATA; |
| 350 | } |
| 351 | } |
| 352 | |
| 353 | if (nal_params_present) |
| 354 | decode_sublayer_hrd(s, nb_cpb, subpic_params_present); |
| 355 | if (vcl_params_present) |
| 356 | decode_sublayer_hrd(s, nb_cpb, subpic_params_present); |
| 357 | } |
| 358 | return 0; |
| 359 | } |
| 360 | |
| 361 | int ff_hevc_decode_nal_vps(HEVCContext *s) |
| 362 | { |
| 363 | int i,j; |
| 364 | GetBitContext *gb = &s->HEVClc->gb; |
| 365 | int vps_id = 0; |
| 366 | HEVCVPS *vps; |
| 367 | AVBufferRef *vps_buf = av_buffer_allocz(sizeof(*vps)); |
| 368 | |
| 369 | if (!vps_buf) |
| 370 | return AVERROR(ENOMEM); |
| 371 | vps = (HEVCVPS*)vps_buf->data; |
| 372 | |
| 373 | av_log(s->avctx, AV_LOG_DEBUG, "Decoding VPS\n"); |
| 374 | |
| 375 | vps_id = get_bits(gb, 4); |
| 376 | if (vps_id >= MAX_VPS_COUNT) { |
| 377 | av_log(s->avctx, AV_LOG_ERROR, "VPS id out of range: %d\n", vps_id); |
| 378 | goto err; |
| 379 | } |
| 380 | |
| 381 | if (get_bits(gb, 2) != 3) { // vps_reserved_three_2bits |
| 382 | av_log(s->avctx, AV_LOG_ERROR, "vps_reserved_three_2bits is not three\n"); |
| 383 | goto err; |
| 384 | } |
| 385 | |
| 386 | vps->vps_max_layers = get_bits(gb, 6) + 1; |
| 387 | vps->vps_max_sub_layers = get_bits(gb, 3) + 1; |
| 388 | vps->vps_temporal_id_nesting_flag = get_bits1(gb); |
| 389 | |
| 390 | if (get_bits(gb, 16) != 0xffff) { // vps_reserved_ffff_16bits |
| 391 | av_log(s->avctx, AV_LOG_ERROR, "vps_reserved_ffff_16bits is not 0xffff\n"); |
| 392 | goto err; |
| 393 | } |
| 394 | |
| 395 | if (vps->vps_max_sub_layers > MAX_SUB_LAYERS) { |
| 396 | av_log(s->avctx, AV_LOG_ERROR, "vps_max_sub_layers out of range: %d\n", |
| 397 | vps->vps_max_sub_layers); |
| 398 | goto err; |
| 399 | } |
| 400 | |
| 401 | if (parse_ptl(s, &vps->ptl, vps->vps_max_sub_layers) < 0) |
| 402 | goto err; |
| 403 | |
| 404 | vps->vps_sub_layer_ordering_info_present_flag = get_bits1(gb); |
| 405 | |
| 406 | i = vps->vps_sub_layer_ordering_info_present_flag ? 0 : vps->vps_max_sub_layers - 1; |
| 407 | for (; i < vps->vps_max_sub_layers; i++) { |
| 408 | vps->vps_max_dec_pic_buffering[i] = get_ue_golomb_long(gb) + 1; |
| 409 | vps->vps_num_reorder_pics[i] = get_ue_golomb_long(gb); |
| 410 | vps->vps_max_latency_increase[i] = get_ue_golomb_long(gb) - 1; |
| 411 | |
| 412 | if (vps->vps_max_dec_pic_buffering[i] > MAX_DPB_SIZE || !vps->vps_max_dec_pic_buffering[i]) { |
| 413 | av_log(s->avctx, AV_LOG_ERROR, "vps_max_dec_pic_buffering_minus1 out of range: %d\n", |
| 414 | vps->vps_max_dec_pic_buffering[i] - 1); |
| 415 | goto err; |
| 416 | } |
| 417 | if (vps->vps_num_reorder_pics[i] > vps->vps_max_dec_pic_buffering[i] - 1) { |
| 418 | av_log(s->avctx, AV_LOG_WARNING, "vps_max_num_reorder_pics out of range: %d\n", |
| 419 | vps->vps_num_reorder_pics[i]); |
| 420 | if (s->avctx->err_recognition & AV_EF_EXPLODE) |
| 421 | goto err; |
| 422 | } |
| 423 | } |
| 424 | |
| 425 | vps->vps_max_layer_id = get_bits(gb, 6); |
| 426 | vps->vps_num_layer_sets = get_ue_golomb_long(gb) + 1; |
| 427 | if ((vps->vps_num_layer_sets - 1LL) * (vps->vps_max_layer_id + 1LL) > get_bits_left(gb)) { |
| 428 | av_log(s->avctx, AV_LOG_ERROR, "too many layer_id_included_flags\n"); |
| 429 | goto err; |
| 430 | } |
| 431 | |
| 432 | for (i = 1; i < vps->vps_num_layer_sets; i++) |
| 433 | for (j = 0; j <= vps->vps_max_layer_id; j++) |
| 434 | skip_bits(gb, 1); // layer_id_included_flag[i][j] |
| 435 | |
| 436 | vps->vps_timing_info_present_flag = get_bits1(gb); |
| 437 | if (vps->vps_timing_info_present_flag) { |
| 438 | vps->vps_num_units_in_tick = get_bits_long(gb, 32); |
| 439 | vps->vps_time_scale = get_bits_long(gb, 32); |
| 440 | vps->vps_poc_proportional_to_timing_flag = get_bits1(gb); |
| 441 | if (vps->vps_poc_proportional_to_timing_flag) |
| 442 | vps->vps_num_ticks_poc_diff_one = get_ue_golomb_long(gb) + 1; |
| 443 | vps->vps_num_hrd_parameters = get_ue_golomb_long(gb); |
| 444 | for (i = 0; i < vps->vps_num_hrd_parameters; i++) { |
| 445 | int common_inf_present = 1; |
| 446 | |
| 447 | get_ue_golomb_long(gb); // hrd_layer_set_idx |
| 448 | if (i) |
| 449 | common_inf_present = get_bits1(gb); |
| 450 | decode_hrd(s, common_inf_present, vps->vps_max_sub_layers); |
| 451 | } |
| 452 | } |
| 453 | get_bits1(gb); /* vps_extension_flag */ |
| 454 | |
| 455 | if (get_bits_left(gb) < 0) { |
| 456 | av_log(s->avctx, AV_LOG_ERROR, |
| 457 | "Overread VPS by %d bits\n", -get_bits_left(gb)); |
| 458 | goto err; |
| 459 | } |
| 460 | |
| 461 | av_buffer_unref(&s->vps_list[vps_id]); |
| 462 | s->vps_list[vps_id] = vps_buf; |
| 463 | return 0; |
| 464 | |
| 465 | err: |
| 466 | av_buffer_unref(&vps_buf); |
| 467 | return AVERROR_INVALIDDATA; |
| 468 | } |
| 469 | |
| 470 | static void decode_vui(HEVCContext *s, HEVCSPS *sps) |
| 471 | { |
| 472 | VUI *vui = &sps->vui; |
| 473 | GetBitContext *gb = &s->HEVClc->gb; |
| 474 | GetBitContext backup; |
| 475 | int sar_present, alt = 0; |
| 476 | |
| 477 | av_log(s->avctx, AV_LOG_DEBUG, "Decoding VUI\n"); |
| 478 | |
| 479 | sar_present = get_bits1(gb); |
| 480 | if (sar_present) { |
| 481 | uint8_t sar_idx = get_bits(gb, 8); |
| 482 | if (sar_idx < FF_ARRAY_ELEMS(vui_sar)) |
| 483 | vui->sar = vui_sar[sar_idx]; |
| 484 | else if (sar_idx == 255) { |
| 485 | vui->sar.num = get_bits(gb, 16); |
| 486 | vui->sar.den = get_bits(gb, 16); |
| 487 | } else |
| 488 | av_log(s->avctx, AV_LOG_WARNING, |
| 489 | "Unknown SAR index: %u.\n", sar_idx); |
| 490 | } |
| 491 | |
| 492 | vui->overscan_info_present_flag = get_bits1(gb); |
| 493 | if (vui->overscan_info_present_flag) |
| 494 | vui->overscan_appropriate_flag = get_bits1(gb); |
| 495 | |
| 496 | vui->video_signal_type_present_flag = get_bits1(gb); |
| 497 | if (vui->video_signal_type_present_flag) { |
| 498 | vui->video_format = get_bits(gb, 3); |
| 499 | vui->video_full_range_flag = get_bits1(gb); |
| 500 | vui->colour_description_present_flag = get_bits1(gb); |
| 501 | if (vui->video_full_range_flag && sps->pix_fmt == AV_PIX_FMT_YUV420P) |
| 502 | sps->pix_fmt = AV_PIX_FMT_YUVJ420P; |
| 503 | if (vui->colour_description_present_flag) { |
| 504 | vui->colour_primaries = get_bits(gb, 8); |
| 505 | vui->transfer_characteristic = get_bits(gb, 8); |
| 506 | vui->matrix_coeffs = get_bits(gb, 8); |
| 507 | |
| 508 | // Set invalid values to "unspecified" |
| 509 | if (vui->colour_primaries >= AVCOL_PRI_NB) |
| 510 | vui->colour_primaries = AVCOL_PRI_UNSPECIFIED; |
| 511 | if (vui->transfer_characteristic >= AVCOL_TRC_NB) |
| 512 | vui->transfer_characteristic = AVCOL_TRC_UNSPECIFIED; |
| 513 | if (vui->matrix_coeffs >= AVCOL_SPC_NB) |
| 514 | vui->matrix_coeffs = AVCOL_SPC_UNSPECIFIED; |
| 515 | } |
| 516 | } |
| 517 | |
| 518 | vui->chroma_loc_info_present_flag = get_bits1(gb); |
| 519 | if (vui->chroma_loc_info_present_flag) { |
| 520 | vui->chroma_sample_loc_type_top_field = get_ue_golomb_long(gb); |
| 521 | vui->chroma_sample_loc_type_bottom_field = get_ue_golomb_long(gb); |
| 522 | } |
| 523 | |
| 524 | vui->neutra_chroma_indication_flag = get_bits1(gb); |
| 525 | vui->field_seq_flag = get_bits1(gb); |
| 526 | vui->frame_field_info_present_flag = get_bits1(gb); |
| 527 | |
| 528 | if (get_bits_left(gb) >= 68 && show_bits_long(gb, 21) == 0x100000) { |
| 529 | vui->default_display_window_flag = 0; |
| 530 | av_log(s->avctx, AV_LOG_WARNING, "Invalid default display window\n"); |
| 531 | } else |
| 532 | vui->default_display_window_flag = get_bits1(gb); |
| 533 | // Backup context in case an alternate header is detected |
| 534 | memcpy(&backup, gb, sizeof(backup)); |
| 535 | |
| 536 | if (vui->default_display_window_flag) { |
| 537 | //TODO: * 2 is only valid for 420 |
| 538 | vui->def_disp_win.left_offset = get_ue_golomb_long(gb) * 2; |
| 539 | vui->def_disp_win.right_offset = get_ue_golomb_long(gb) * 2; |
| 540 | vui->def_disp_win.top_offset = get_ue_golomb_long(gb) * 2; |
| 541 | vui->def_disp_win.bottom_offset = get_ue_golomb_long(gb) * 2; |
| 542 | |
| 543 | if (s->apply_defdispwin && |
| 544 | s->avctx->flags2 & CODEC_FLAG2_IGNORE_CROP) { |
| 545 | av_log(s->avctx, AV_LOG_DEBUG, |
| 546 | "discarding vui default display window, " |
| 547 | "original values are l:%u r:%u t:%u b:%u\n", |
| 548 | vui->def_disp_win.left_offset, |
| 549 | vui->def_disp_win.right_offset, |
| 550 | vui->def_disp_win.top_offset, |
| 551 | vui->def_disp_win.bottom_offset); |
| 552 | |
| 553 | vui->def_disp_win.left_offset = |
| 554 | vui->def_disp_win.right_offset = |
| 555 | vui->def_disp_win.top_offset = |
| 556 | vui->def_disp_win.bottom_offset = 0; |
| 557 | } |
| 558 | } |
| 559 | |
| 560 | vui->vui_timing_info_present_flag = get_bits1(gb); |
| 561 | |
| 562 | if (vui->vui_timing_info_present_flag) { |
| 563 | if( get_bits_left(gb) < 66) { |
| 564 | // The alternate syntax seem to have timing info located |
| 565 | // at where def_disp_win is normally located |
| 566 | av_log(s->avctx, AV_LOG_WARNING, |
| 567 | "Strange VUI timing information, retrying...\n"); |
| 568 | vui->default_display_window_flag = 0; |
| 569 | memset(&vui->def_disp_win, 0, sizeof(vui->def_disp_win)); |
| 570 | memcpy(gb, &backup, sizeof(backup)); |
| 571 | alt = 1; |
| 572 | } |
| 573 | vui->vui_num_units_in_tick = get_bits_long(gb, 32); |
| 574 | vui->vui_time_scale = get_bits_long(gb, 32); |
| 575 | if (alt) { |
| 576 | av_log(s->avctx, AV_LOG_INFO, "Retry got %i/%i fps\n", |
| 577 | vui->vui_time_scale, vui->vui_num_units_in_tick); |
| 578 | } |
| 579 | vui->vui_poc_proportional_to_timing_flag = get_bits1(gb); |
| 580 | if (vui->vui_poc_proportional_to_timing_flag) |
| 581 | vui->vui_num_ticks_poc_diff_one_minus1 = get_ue_golomb_long(gb); |
| 582 | vui->vui_hrd_parameters_present_flag = get_bits1(gb); |
| 583 | if (vui->vui_hrd_parameters_present_flag) |
| 584 | decode_hrd(s, 1, sps->max_sub_layers); |
| 585 | } |
| 586 | |
| 587 | vui->bitstream_restriction_flag = get_bits1(gb); |
| 588 | if (vui->bitstream_restriction_flag) { |
| 589 | vui->tiles_fixed_structure_flag = get_bits1(gb); |
| 590 | vui->motion_vectors_over_pic_boundaries_flag = get_bits1(gb); |
| 591 | vui->restricted_ref_pic_lists_flag = get_bits1(gb); |
| 592 | vui->min_spatial_segmentation_idc = get_ue_golomb_long(gb); |
| 593 | vui->max_bytes_per_pic_denom = get_ue_golomb_long(gb); |
| 594 | vui->max_bits_per_min_cu_denom = get_ue_golomb_long(gb); |
| 595 | vui->log2_max_mv_length_horizontal = get_ue_golomb_long(gb); |
| 596 | vui->log2_max_mv_length_vertical = get_ue_golomb_long(gb); |
| 597 | } |
| 598 | } |
| 599 | |
| 600 | static void set_default_scaling_list_data(ScalingList *sl) |
| 601 | { |
| 602 | int matrixId; |
| 603 | |
| 604 | for (matrixId = 0; matrixId < 6; matrixId++) { |
| 605 | // 4x4 default is 16 |
| 606 | memset(sl->sl[0][matrixId], 16, 16); |
| 607 | sl->sl_dc[0][matrixId] = 16; // default for 16x16 |
| 608 | sl->sl_dc[1][matrixId] = 16; // default for 32x32 |
| 609 | } |
| 610 | memcpy(sl->sl[1][0], default_scaling_list_intra, 64); |
| 611 | memcpy(sl->sl[1][1], default_scaling_list_intra, 64); |
| 612 | memcpy(sl->sl[1][2], default_scaling_list_intra, 64); |
| 613 | memcpy(sl->sl[1][3], default_scaling_list_inter, 64); |
| 614 | memcpy(sl->sl[1][4], default_scaling_list_inter, 64); |
| 615 | memcpy(sl->sl[1][5], default_scaling_list_inter, 64); |
| 616 | memcpy(sl->sl[2][0], default_scaling_list_intra, 64); |
| 617 | memcpy(sl->sl[2][1], default_scaling_list_intra, 64); |
| 618 | memcpy(sl->sl[2][2], default_scaling_list_intra, 64); |
| 619 | memcpy(sl->sl[2][3], default_scaling_list_inter, 64); |
| 620 | memcpy(sl->sl[2][4], default_scaling_list_inter, 64); |
| 621 | memcpy(sl->sl[2][5], default_scaling_list_inter, 64); |
| 622 | memcpy(sl->sl[3][0], default_scaling_list_intra, 64); |
| 623 | memcpy(sl->sl[3][1], default_scaling_list_intra, 64); |
| 624 | memcpy(sl->sl[3][2], default_scaling_list_intra, 64); |
| 625 | memcpy(sl->sl[3][3], default_scaling_list_inter, 64); |
| 626 | memcpy(sl->sl[3][4], default_scaling_list_inter, 64); |
| 627 | memcpy(sl->sl[3][5], default_scaling_list_inter, 64); |
| 628 | } |
| 629 | |
| 630 | static int scaling_list_data(HEVCContext *s, ScalingList *sl, HEVCSPS *sps) |
| 631 | { |
| 632 | GetBitContext *gb = &s->HEVClc->gb; |
| 633 | uint8_t scaling_list_pred_mode_flag; |
| 634 | int32_t scaling_list_dc_coef[2][6]; |
| 635 | int size_id, matrix_id, pos; |
| 636 | int i; |
| 637 | |
| 638 | for (size_id = 0; size_id < 4; size_id++) |
| 639 | for (matrix_id = 0; matrix_id < 6; matrix_id += ((size_id == 3) ? 3 : 1)) { |
| 640 | scaling_list_pred_mode_flag = get_bits1(gb); |
| 641 | if (!scaling_list_pred_mode_flag) { |
| 642 | unsigned int delta = get_ue_golomb_long(gb); |
| 643 | /* Only need to handle non-zero delta. Zero means default, |
| 644 | * which should already be in the arrays. */ |
| 645 | if (delta) { |
| 646 | // Copy from previous array. |
| 647 | if (matrix_id < delta) { |
| 648 | av_log(s->avctx, AV_LOG_ERROR, |
| 649 | "Invalid delta in scaling list data: %d.\n", delta); |
| 650 | return AVERROR_INVALIDDATA; |
| 651 | } |
| 652 | |
| 653 | memcpy(sl->sl[size_id][matrix_id], |
| 654 | sl->sl[size_id][matrix_id - delta], |
| 655 | size_id > 0 ? 64 : 16); |
| 656 | if (size_id > 1) |
| 657 | sl->sl_dc[size_id - 2][matrix_id] = sl->sl_dc[size_id - 2][matrix_id - delta]; |
| 658 | } |
| 659 | } else { |
| 660 | int next_coef, coef_num; |
| 661 | int32_t scaling_list_delta_coef; |
| 662 | |
| 663 | next_coef = 8; |
| 664 | coef_num = FFMIN(64, 1 << (4 + (size_id << 1))); |
| 665 | if (size_id > 1) { |
| 666 | scaling_list_dc_coef[size_id - 2][matrix_id] = get_se_golomb(gb) + 8; |
| 667 | next_coef = scaling_list_dc_coef[size_id - 2][matrix_id]; |
| 668 | sl->sl_dc[size_id - 2][matrix_id] = next_coef; |
| 669 | } |
| 670 | for (i = 0; i < coef_num; i++) { |
| 671 | if (size_id == 0) |
| 672 | pos = 4 * ff_hevc_diag_scan4x4_y[i] + |
| 673 | ff_hevc_diag_scan4x4_x[i]; |
| 674 | else |
| 675 | pos = 8 * ff_hevc_diag_scan8x8_y[i] + |
| 676 | ff_hevc_diag_scan8x8_x[i]; |
| 677 | |
| 678 | scaling_list_delta_coef = get_se_golomb(gb); |
| 679 | next_coef = (next_coef + scaling_list_delta_coef + 256) % 256; |
| 680 | sl->sl[size_id][matrix_id][pos] = next_coef; |
| 681 | } |
| 682 | } |
| 683 | } |
| 684 | |
| 685 | if (sps->chroma_format_idc == 3) { |
| 686 | for (i = 0; i < 64; i++) { |
| 687 | sl->sl[3][1][i] = sl->sl[2][1][i]; |
| 688 | sl->sl[3][2][i] = sl->sl[2][2][i]; |
| 689 | sl->sl[3][4][i] = sl->sl[2][4][i]; |
| 690 | sl->sl[3][5][i] = sl->sl[2][5][i]; |
| 691 | } |
| 692 | sl->sl_dc[1][1] = sl->sl_dc[0][1]; |
| 693 | sl->sl_dc[1][2] = sl->sl_dc[0][2]; |
| 694 | sl->sl_dc[1][4] = sl->sl_dc[0][4]; |
| 695 | sl->sl_dc[1][5] = sl->sl_dc[0][5]; |
| 696 | } |
| 697 | |
| 698 | |
| 699 | return 0; |
| 700 | } |
| 701 | |
| 702 | int ff_hevc_decode_nal_sps(HEVCContext *s) |
| 703 | { |
| 704 | const AVPixFmtDescriptor *desc; |
| 705 | GetBitContext *gb = &s->HEVClc->gb; |
| 706 | int ret = 0; |
| 707 | unsigned int sps_id = 0; |
| 708 | int log2_diff_max_min_transform_block_size; |
| 709 | int bit_depth_chroma, start, vui_present, sublayer_ordering_info; |
| 710 | int i; |
| 711 | |
| 712 | HEVCSPS *sps; |
| 713 | AVBufferRef *sps_buf = av_buffer_allocz(sizeof(*sps)); |
| 714 | |
| 715 | if (!sps_buf) |
| 716 | return AVERROR(ENOMEM); |
| 717 | sps = (HEVCSPS*)sps_buf->data; |
| 718 | |
| 719 | av_log(s->avctx, AV_LOG_DEBUG, "Decoding SPS\n"); |
| 720 | |
| 721 | // Coded parameters |
| 722 | |
| 723 | sps->vps_id = get_bits(gb, 4); |
| 724 | if (sps->vps_id >= MAX_VPS_COUNT) { |
| 725 | av_log(s->avctx, AV_LOG_ERROR, "VPS id out of range: %d\n", sps->vps_id); |
| 726 | ret = AVERROR_INVALIDDATA; |
| 727 | goto err; |
| 728 | } |
| 729 | |
| 730 | if (!s->vps_list[sps->vps_id]) { |
| 731 | av_log(s->avctx, AV_LOG_ERROR, "VPS %d does not exist\n", |
| 732 | sps->vps_id); |
| 733 | ret = AVERROR_INVALIDDATA; |
| 734 | goto err; |
| 735 | } |
| 736 | |
| 737 | sps->max_sub_layers = get_bits(gb, 3) + 1; |
| 738 | if (sps->max_sub_layers > MAX_SUB_LAYERS) { |
| 739 | av_log(s->avctx, AV_LOG_ERROR, "sps_max_sub_layers out of range: %d\n", |
| 740 | sps->max_sub_layers); |
| 741 | ret = AVERROR_INVALIDDATA; |
| 742 | goto err; |
| 743 | } |
| 744 | |
| 745 | skip_bits1(gb); // temporal_id_nesting_flag |
| 746 | |
| 747 | if (parse_ptl(s, &sps->ptl, sps->max_sub_layers) < 0) |
| 748 | goto err; |
| 749 | |
| 750 | sps_id = get_ue_golomb_long(gb); |
| 751 | if (sps_id >= MAX_SPS_COUNT) { |
| 752 | av_log(s->avctx, AV_LOG_ERROR, "SPS id out of range: %d\n", sps_id); |
| 753 | ret = AVERROR_INVALIDDATA; |
| 754 | goto err; |
| 755 | } |
| 756 | |
| 757 | sps->chroma_format_idc = get_ue_golomb_long(gb); |
| 758 | if (!(sps->chroma_format_idc == 1 || sps->chroma_format_idc == 2 || sps->chroma_format_idc == 3)) { |
| 759 | avpriv_report_missing_feature(s->avctx, "chroma_format_idc != {1, 2, 3}\n"); |
| 760 | ret = AVERROR_PATCHWELCOME; |
| 761 | goto err; |
| 762 | } |
| 763 | |
| 764 | if (sps->chroma_format_idc == 3) |
| 765 | sps->separate_colour_plane_flag = get_bits1(gb); |
| 766 | |
| 767 | if (sps->separate_colour_plane_flag) |
| 768 | sps->chroma_format_idc = 0; |
| 769 | |
| 770 | sps->width = get_ue_golomb_long(gb); |
| 771 | sps->height = get_ue_golomb_long(gb); |
| 772 | if ((ret = av_image_check_size(sps->width, |
| 773 | sps->height, 0, s->avctx)) < 0) |
| 774 | goto err; |
| 775 | |
| 776 | if (get_bits1(gb)) { // pic_conformance_flag |
| 777 | //TODO: * 2 is only valid for 420 |
| 778 | sps->pic_conf_win.left_offset = get_ue_golomb_long(gb) * 2; |
| 779 | sps->pic_conf_win.right_offset = get_ue_golomb_long(gb) * 2; |
| 780 | sps->pic_conf_win.top_offset = get_ue_golomb_long(gb) * 2; |
| 781 | sps->pic_conf_win.bottom_offset = get_ue_golomb_long(gb) * 2; |
| 782 | |
| 783 | if (s->avctx->flags2 & CODEC_FLAG2_IGNORE_CROP) { |
| 784 | av_log(s->avctx, AV_LOG_DEBUG, |
| 785 | "discarding sps conformance window, " |
| 786 | "original values are l:%u r:%u t:%u b:%u\n", |
| 787 | sps->pic_conf_win.left_offset, |
| 788 | sps->pic_conf_win.right_offset, |
| 789 | sps->pic_conf_win.top_offset, |
| 790 | sps->pic_conf_win.bottom_offset); |
| 791 | |
| 792 | sps->pic_conf_win.left_offset = |
| 793 | sps->pic_conf_win.right_offset = |
| 794 | sps->pic_conf_win.top_offset = |
| 795 | sps->pic_conf_win.bottom_offset = 0; |
| 796 | } |
| 797 | sps->output_window = sps->pic_conf_win; |
| 798 | } |
| 799 | |
| 800 | sps->bit_depth = get_ue_golomb_long(gb) + 8; |
| 801 | bit_depth_chroma = get_ue_golomb_long(gb) + 8; |
| 802 | if (bit_depth_chroma != sps->bit_depth) { |
| 803 | av_log(s->avctx, AV_LOG_ERROR, |
| 804 | "Luma bit depth (%d) is different from chroma bit depth (%d), " |
| 805 | "this is unsupported.\n", |
| 806 | sps->bit_depth, bit_depth_chroma); |
| 807 | ret = AVERROR_INVALIDDATA; |
| 808 | goto err; |
| 809 | } |
| 810 | |
| 811 | switch (sps->bit_depth) { |
| 812 | case 8: |
| 813 | if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P; |
| 814 | if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P; |
| 815 | if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P; |
| 816 | break; |
| 817 | case 9: |
| 818 | if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P9; |
| 819 | if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P9; |
| 820 | if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P9; |
| 821 | break; |
| 822 | case 10: |
| 823 | if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P10; |
| 824 | if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P10; |
| 825 | if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P10; |
| 826 | break; |
| 827 | case 12: |
| 828 | if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P12; |
| 829 | if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P12; |
| 830 | if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P12; |
| 831 | break; |
| 832 | default: |
| 833 | av_log(s->avctx, AV_LOG_ERROR, |
| 834 | "4:2:0, 4:2:2, 4:4:4 supports are currently specified for 8, 10 and 12 bits.\n"); |
| 835 | ret = AVERROR_PATCHWELCOME; |
| 836 | goto err; |
| 837 | } |
| 838 | |
| 839 | desc = av_pix_fmt_desc_get(sps->pix_fmt); |
| 840 | if (!desc) { |
| 841 | ret = AVERROR(EINVAL); |
| 842 | goto err; |
| 843 | } |
| 844 | |
| 845 | sps->hshift[0] = sps->vshift[0] = 0; |
| 846 | sps->hshift[2] = sps->hshift[1] = desc->log2_chroma_w; |
| 847 | sps->vshift[2] = sps->vshift[1] = desc->log2_chroma_h; |
| 848 | |
| 849 | sps->pixel_shift = sps->bit_depth > 8; |
| 850 | |
| 851 | sps->log2_max_poc_lsb = get_ue_golomb_long(gb) + 4; |
| 852 | if (sps->log2_max_poc_lsb > 16) { |
| 853 | av_log(s->avctx, AV_LOG_ERROR, "log2_max_pic_order_cnt_lsb_minus4 out range: %d\n", |
| 854 | sps->log2_max_poc_lsb - 4); |
| 855 | ret = AVERROR_INVALIDDATA; |
| 856 | goto err; |
| 857 | } |
| 858 | |
| 859 | sublayer_ordering_info = get_bits1(gb); |
| 860 | start = sublayer_ordering_info ? 0 : sps->max_sub_layers - 1; |
| 861 | for (i = start; i < sps->max_sub_layers; i++) { |
| 862 | sps->temporal_layer[i].max_dec_pic_buffering = get_ue_golomb_long(gb) + 1; |
| 863 | sps->temporal_layer[i].num_reorder_pics = get_ue_golomb_long(gb); |
| 864 | sps->temporal_layer[i].max_latency_increase = get_ue_golomb_long(gb) - 1; |
| 865 | if (sps->temporal_layer[i].max_dec_pic_buffering > MAX_DPB_SIZE) { |
| 866 | av_log(s->avctx, AV_LOG_ERROR, "sps_max_dec_pic_buffering_minus1 out of range: %d\n", |
| 867 | sps->temporal_layer[i].max_dec_pic_buffering - 1); |
| 868 | ret = AVERROR_INVALIDDATA; |
| 869 | goto err; |
| 870 | } |
| 871 | if (sps->temporal_layer[i].num_reorder_pics > sps->temporal_layer[i].max_dec_pic_buffering - 1) { |
| 872 | av_log(s->avctx, AV_LOG_WARNING, "sps_max_num_reorder_pics out of range: %d\n", |
| 873 | sps->temporal_layer[i].num_reorder_pics); |
| 874 | if (s->avctx->err_recognition & AV_EF_EXPLODE || |
| 875 | sps->temporal_layer[i].num_reorder_pics > MAX_DPB_SIZE - 1) { |
| 876 | ret = AVERROR_INVALIDDATA; |
| 877 | goto err; |
| 878 | } |
| 879 | sps->temporal_layer[i].max_dec_pic_buffering = sps->temporal_layer[i].num_reorder_pics + 1; |
| 880 | } |
| 881 | } |
| 882 | |
| 883 | if (!sublayer_ordering_info) { |
| 884 | for (i = 0; i < start; i++) { |
| 885 | sps->temporal_layer[i].max_dec_pic_buffering = sps->temporal_layer[start].max_dec_pic_buffering; |
| 886 | sps->temporal_layer[i].num_reorder_pics = sps->temporal_layer[start].num_reorder_pics; |
| 887 | sps->temporal_layer[i].max_latency_increase = sps->temporal_layer[start].max_latency_increase; |
| 888 | } |
| 889 | } |
| 890 | |
| 891 | sps->log2_min_cb_size = get_ue_golomb_long(gb) + 3; |
| 892 | sps->log2_diff_max_min_coding_block_size = get_ue_golomb_long(gb); |
| 893 | sps->log2_min_tb_size = get_ue_golomb_long(gb) + 2; |
| 894 | log2_diff_max_min_transform_block_size = get_ue_golomb_long(gb); |
| 895 | sps->log2_max_trafo_size = log2_diff_max_min_transform_block_size + |
| 896 | sps->log2_min_tb_size; |
| 897 | |
| 898 | if (sps->log2_min_tb_size >= sps->log2_min_cb_size) { |
| 899 | av_log(s->avctx, AV_LOG_ERROR, "Invalid value for log2_min_tb_size"); |
| 900 | ret = AVERROR_INVALIDDATA; |
| 901 | goto err; |
| 902 | } |
| 903 | sps->max_transform_hierarchy_depth_inter = get_ue_golomb_long(gb); |
| 904 | sps->max_transform_hierarchy_depth_intra = get_ue_golomb_long(gb); |
| 905 | |
| 906 | sps->scaling_list_enable_flag = get_bits1(gb); |
| 907 | if (sps->scaling_list_enable_flag) { |
| 908 | set_default_scaling_list_data(&sps->scaling_list); |
| 909 | |
| 910 | if (get_bits1(gb)) { |
| 911 | ret = scaling_list_data(s, &sps->scaling_list, sps); |
| 912 | if (ret < 0) |
| 913 | goto err; |
| 914 | } |
| 915 | } |
| 916 | |
| 917 | sps->amp_enabled_flag = get_bits1(gb); |
| 918 | sps->sao_enabled = get_bits1(gb); |
| 919 | |
| 920 | sps->pcm_enabled_flag = get_bits1(gb); |
| 921 | if (sps->pcm_enabled_flag) { |
| 922 | sps->pcm.bit_depth = get_bits(gb, 4) + 1; |
| 923 | sps->pcm.bit_depth_chroma = get_bits(gb, 4) + 1; |
| 924 | sps->pcm.log2_min_pcm_cb_size = get_ue_golomb_long(gb) + 3; |
| 925 | sps->pcm.log2_max_pcm_cb_size = sps->pcm.log2_min_pcm_cb_size + |
| 926 | get_ue_golomb_long(gb); |
| 927 | if (sps->pcm.bit_depth > sps->bit_depth) { |
| 928 | av_log(s->avctx, AV_LOG_ERROR, |
| 929 | "PCM bit depth (%d) is greater than normal bit depth (%d)\n", |
| 930 | sps->pcm.bit_depth, sps->bit_depth); |
| 931 | ret = AVERROR_INVALIDDATA; |
| 932 | goto err; |
| 933 | } |
| 934 | |
| 935 | sps->pcm.loop_filter_disable_flag = get_bits1(gb); |
| 936 | } |
| 937 | |
| 938 | sps->nb_st_rps = get_ue_golomb_long(gb); |
| 939 | if (sps->nb_st_rps > MAX_SHORT_TERM_RPS_COUNT) { |
| 940 | av_log(s->avctx, AV_LOG_ERROR, "Too many short term RPS: %d.\n", |
| 941 | sps->nb_st_rps); |
| 942 | ret = AVERROR_INVALIDDATA; |
| 943 | goto err; |
| 944 | } |
| 945 | for (i = 0; i < sps->nb_st_rps; i++) { |
| 946 | if ((ret = ff_hevc_decode_short_term_rps(s, &sps->st_rps[i], |
| 947 | sps, 0)) < 0) |
| 948 | goto err; |
| 949 | } |
| 950 | |
| 951 | sps->long_term_ref_pics_present_flag = get_bits1(gb); |
| 952 | if (sps->long_term_ref_pics_present_flag) { |
| 953 | sps->num_long_term_ref_pics_sps = get_ue_golomb_long(gb); |
| 954 | if (sps->num_long_term_ref_pics_sps > 31U) { |
| 955 | av_log(0, AV_LOG_ERROR, "num_long_term_ref_pics_sps %d is out of range.\n", |
| 956 | sps->num_long_term_ref_pics_sps); |
| 957 | goto err; |
| 958 | } |
| 959 | for (i = 0; i < sps->num_long_term_ref_pics_sps; i++) { |
| 960 | sps->lt_ref_pic_poc_lsb_sps[i] = get_bits(gb, sps->log2_max_poc_lsb); |
| 961 | sps->used_by_curr_pic_lt_sps_flag[i] = get_bits1(gb); |
| 962 | } |
| 963 | } |
| 964 | |
| 965 | sps->sps_temporal_mvp_enabled_flag = get_bits1(gb); |
| 966 | sps->sps_strong_intra_smoothing_enable_flag = get_bits1(gb); |
| 967 | sps->vui.sar = (AVRational){0, 1}; |
| 968 | vui_present = get_bits1(gb); |
| 969 | if (vui_present) |
| 970 | decode_vui(s, sps); |
| 971 | |
| 972 | if (get_bits1(gb)) { // sps_extension_flag |
| 973 | int sps_extension_flag[1]; |
| 974 | for (i = 0; i < 1; i++) |
| 975 | sps_extension_flag[i] = get_bits1(gb); |
| 976 | skip_bits(gb, 7); //sps_extension_7bits = get_bits(gb, 7); |
| 977 | if (sps_extension_flag[0]) { |
| 978 | int extended_precision_processing_flag; |
| 979 | int high_precision_offsets_enabled_flag; |
| 980 | int cabac_bypass_alignment_enabled_flag; |
| 981 | |
| 982 | sps->transform_skip_rotation_enabled_flag = get_bits1(gb); |
| 983 | sps->transform_skip_context_enabled_flag = get_bits1(gb); |
| 984 | sps->implicit_rdpcm_enabled_flag = get_bits1(gb); |
| 985 | |
| 986 | sps->explicit_rdpcm_enabled_flag = get_bits1(gb); |
| 987 | |
| 988 | extended_precision_processing_flag = get_bits1(gb); |
| 989 | if (extended_precision_processing_flag) |
| 990 | av_log(s->avctx, AV_LOG_WARNING, |
| 991 | "extended_precision_processing_flag not yet implemented\n"); |
| 992 | |
| 993 | sps->intra_smoothing_disabled_flag = get_bits1(gb); |
| 994 | high_precision_offsets_enabled_flag = get_bits1(gb); |
| 995 | if (high_precision_offsets_enabled_flag) |
| 996 | av_log(s->avctx, AV_LOG_WARNING, |
| 997 | "high_precision_offsets_enabled_flag not yet implemented\n"); |
| 998 | |
| 999 | sps->persistent_rice_adaptation_enabled_flag = get_bits1(gb); |
| 1000 | |
| 1001 | cabac_bypass_alignment_enabled_flag = get_bits1(gb); |
| 1002 | if (cabac_bypass_alignment_enabled_flag) |
| 1003 | av_log(s->avctx, AV_LOG_WARNING, |
| 1004 | "cabac_bypass_alignment_enabled_flag not yet implemented\n"); |
| 1005 | } |
| 1006 | } |
| 1007 | if (s->apply_defdispwin) { |
| 1008 | sps->output_window.left_offset += sps->vui.def_disp_win.left_offset; |
| 1009 | sps->output_window.right_offset += sps->vui.def_disp_win.right_offset; |
| 1010 | sps->output_window.top_offset += sps->vui.def_disp_win.top_offset; |
| 1011 | sps->output_window.bottom_offset += sps->vui.def_disp_win.bottom_offset; |
| 1012 | } |
| 1013 | if (sps->output_window.left_offset & (0x1F >> (sps->pixel_shift)) && |
| 1014 | !(s->avctx->flags & CODEC_FLAG_UNALIGNED)) { |
| 1015 | sps->output_window.left_offset &= ~(0x1F >> (sps->pixel_shift)); |
| 1016 | av_log(s->avctx, AV_LOG_WARNING, "Reducing left output window to %d " |
| 1017 | "chroma samples to preserve alignment.\n", |
| 1018 | sps->output_window.left_offset); |
| 1019 | } |
| 1020 | sps->output_width = sps->width - |
| 1021 | (sps->output_window.left_offset + sps->output_window.right_offset); |
| 1022 | sps->output_height = sps->height - |
| 1023 | (sps->output_window.top_offset + sps->output_window.bottom_offset); |
| 1024 | if (sps->output_width <= 0 || sps->output_height <= 0) { |
| 1025 | av_log(s->avctx, AV_LOG_WARNING, "Invalid visible frame dimensions: %dx%d.\n", |
| 1026 | sps->output_width, sps->output_height); |
| 1027 | if (s->avctx->err_recognition & AV_EF_EXPLODE) { |
| 1028 | ret = AVERROR_INVALIDDATA; |
| 1029 | goto err; |
| 1030 | } |
| 1031 | av_log(s->avctx, AV_LOG_WARNING, |
| 1032 | "Displaying the whole video surface.\n"); |
| 1033 | memset(&sps->pic_conf_win, 0, sizeof(sps->pic_conf_win)); |
| 1034 | memset(&sps->output_window, 0, sizeof(sps->output_window)); |
| 1035 | sps->output_width = sps->width; |
| 1036 | sps->output_height = sps->height; |
| 1037 | } |
| 1038 | |
| 1039 | // Inferred parameters |
| 1040 | sps->log2_ctb_size = sps->log2_min_cb_size + |
| 1041 | sps->log2_diff_max_min_coding_block_size; |
| 1042 | sps->log2_min_pu_size = sps->log2_min_cb_size - 1; |
| 1043 | |
| 1044 | sps->ctb_width = (sps->width + (1 << sps->log2_ctb_size) - 1) >> sps->log2_ctb_size; |
| 1045 | sps->ctb_height = (sps->height + (1 << sps->log2_ctb_size) - 1) >> sps->log2_ctb_size; |
| 1046 | sps->ctb_size = sps->ctb_width * sps->ctb_height; |
| 1047 | |
| 1048 | sps->min_cb_width = sps->width >> sps->log2_min_cb_size; |
| 1049 | sps->min_cb_height = sps->height >> sps->log2_min_cb_size; |
| 1050 | sps->min_tb_width = sps->width >> sps->log2_min_tb_size; |
| 1051 | sps->min_tb_height = sps->height >> sps->log2_min_tb_size; |
| 1052 | sps->min_pu_width = sps->width >> sps->log2_min_pu_size; |
| 1053 | sps->min_pu_height = sps->height >> sps->log2_min_pu_size; |
| 1054 | sps->tb_mask = (1 << (sps->log2_ctb_size - sps->log2_min_tb_size)) - 1; |
| 1055 | |
| 1056 | sps->qp_bd_offset = 6 * (sps->bit_depth - 8); |
| 1057 | |
| 1058 | if (sps->width & ((1 << sps->log2_min_cb_size) - 1) || |
| 1059 | sps->height & ((1 << sps->log2_min_cb_size) - 1)) { |
| 1060 | av_log(s->avctx, AV_LOG_ERROR, "Invalid coded frame dimensions.\n"); |
| 1061 | goto err; |
| 1062 | } |
| 1063 | |
| 1064 | if (sps->log2_ctb_size > MAX_LOG2_CTB_SIZE) { |
| 1065 | av_log(s->avctx, AV_LOG_ERROR, "CTB size out of range: 2^%d\n", sps->log2_ctb_size); |
| 1066 | goto err; |
| 1067 | } |
| 1068 | if (sps->max_transform_hierarchy_depth_inter > sps->log2_ctb_size - sps->log2_min_tb_size) { |
| 1069 | av_log(s->avctx, AV_LOG_ERROR, "max_transform_hierarchy_depth_inter out of range: %d\n", |
| 1070 | sps->max_transform_hierarchy_depth_inter); |
| 1071 | goto err; |
| 1072 | } |
| 1073 | if (sps->max_transform_hierarchy_depth_intra > sps->log2_ctb_size - sps->log2_min_tb_size) { |
| 1074 | av_log(s->avctx, AV_LOG_ERROR, "max_transform_hierarchy_depth_intra out of range: %d\n", |
| 1075 | sps->max_transform_hierarchy_depth_intra); |
| 1076 | goto err; |
| 1077 | } |
| 1078 | if (sps->log2_max_trafo_size > FFMIN(sps->log2_ctb_size, 5)) { |
| 1079 | av_log(s->avctx, AV_LOG_ERROR, |
| 1080 | "max transform block size out of range: %d\n", |
| 1081 | sps->log2_max_trafo_size); |
| 1082 | goto err; |
| 1083 | } |
| 1084 | |
| 1085 | if (get_bits_left(gb) < 0) { |
| 1086 | av_log(s->avctx, AV_LOG_ERROR, |
| 1087 | "Overread SPS by %d bits\n", -get_bits_left(gb)); |
| 1088 | goto err; |
| 1089 | } |
| 1090 | |
| 1091 | if (s->avctx->debug & FF_DEBUG_BITSTREAM) { |
| 1092 | av_log(s->avctx, AV_LOG_DEBUG, |
| 1093 | "Parsed SPS: id %d; coded wxh: %dx%d; " |
| 1094 | "cropped wxh: %dx%d; pix_fmt: %s.\n", |
| 1095 | sps_id, sps->width, sps->height, |
| 1096 | sps->output_width, sps->output_height, |
| 1097 | av_get_pix_fmt_name(sps->pix_fmt)); |
| 1098 | } |
| 1099 | |
| 1100 | /* check if this is a repeat of an already parsed SPS, then keep the |
| 1101 | * original one. |
| 1102 | * otherwise drop all PPSes that depend on it */ |
| 1103 | if (s->sps_list[sps_id] && |
| 1104 | !memcmp(s->sps_list[sps_id]->data, sps_buf->data, sps_buf->size)) { |
| 1105 | av_buffer_unref(&sps_buf); |
| 1106 | } else { |
| 1107 | for (i = 0; i < FF_ARRAY_ELEMS(s->pps_list); i++) { |
| 1108 | if (s->pps_list[i] && ((HEVCPPS*)s->pps_list[i]->data)->sps_id == sps_id) |
| 1109 | av_buffer_unref(&s->pps_list[i]); |
| 1110 | } |
| 1111 | if (s->sps_list[sps_id] && s->sps == (HEVCSPS*)s->sps_list[sps_id]->data) { |
| 1112 | av_buffer_unref(&s->current_sps); |
| 1113 | s->current_sps = av_buffer_ref(s->sps_list[sps_id]); |
| 1114 | if (!s->current_sps) |
| 1115 | s->sps = NULL; |
| 1116 | } |
| 1117 | av_buffer_unref(&s->sps_list[sps_id]); |
| 1118 | s->sps_list[sps_id] = sps_buf; |
| 1119 | } |
| 1120 | |
| 1121 | return 0; |
| 1122 | |
| 1123 | err: |
| 1124 | av_buffer_unref(&sps_buf); |
| 1125 | return ret; |
| 1126 | } |
| 1127 | |
| 1128 | static void hevc_pps_free(void *opaque, uint8_t *data) |
| 1129 | { |
| 1130 | HEVCPPS *pps = (HEVCPPS*)data; |
| 1131 | |
| 1132 | av_freep(&pps->column_width); |
| 1133 | av_freep(&pps->row_height); |
| 1134 | av_freep(&pps->col_bd); |
| 1135 | av_freep(&pps->row_bd); |
| 1136 | av_freep(&pps->col_idxX); |
| 1137 | av_freep(&pps->ctb_addr_rs_to_ts); |
| 1138 | av_freep(&pps->ctb_addr_ts_to_rs); |
| 1139 | av_freep(&pps->tile_pos_rs); |
| 1140 | av_freep(&pps->tile_id); |
| 1141 | av_freep(&pps->min_tb_addr_zs_tab); |
| 1142 | |
| 1143 | av_freep(&pps); |
| 1144 | } |
| 1145 | |
| 1146 | static int pps_range_extensions(HEVCContext *s, HEVCPPS *pps, HEVCSPS *sps) { |
| 1147 | GetBitContext *gb = &s->HEVClc->gb; |
| 1148 | int i; |
| 1149 | |
| 1150 | if (pps->transform_skip_enabled_flag) { |
| 1151 | pps->log2_max_transform_skip_block_size = get_ue_golomb_long(gb) + 2; |
| 1152 | } |
| 1153 | pps->cross_component_prediction_enabled_flag = get_bits1(gb); |
| 1154 | pps->chroma_qp_offset_list_enabled_flag = get_bits1(gb); |
| 1155 | if (pps->chroma_qp_offset_list_enabled_flag) { |
| 1156 | pps->diff_cu_chroma_qp_offset_depth = get_ue_golomb_long(gb); |
| 1157 | pps->chroma_qp_offset_list_len_minus1 = get_ue_golomb_long(gb); |
| 1158 | if (pps->chroma_qp_offset_list_len_minus1 && pps->chroma_qp_offset_list_len_minus1 >= 5) { |
| 1159 | av_log(s->avctx, AV_LOG_ERROR, |
| 1160 | "chroma_qp_offset_list_len_minus1 shall be in the range [0, 5].\n"); |
| 1161 | return AVERROR_INVALIDDATA; |
| 1162 | } |
| 1163 | for (i = 0; i <= pps->chroma_qp_offset_list_len_minus1; i++) { |
| 1164 | pps->cb_qp_offset_list[i] = get_se_golomb_long(gb); |
| 1165 | if (pps->cb_qp_offset_list[i]) { |
| 1166 | av_log(s->avctx, AV_LOG_WARNING, |
| 1167 | "cb_qp_offset_list not tested yet.\n"); |
| 1168 | } |
| 1169 | pps->cr_qp_offset_list[i] = get_se_golomb_long(gb); |
| 1170 | if (pps->cr_qp_offset_list[i]) { |
| 1171 | av_log(s->avctx, AV_LOG_WARNING, |
| 1172 | "cb_qp_offset_list not tested yet.\n"); |
| 1173 | } |
| 1174 | } |
| 1175 | } |
| 1176 | pps->log2_sao_offset_scale_luma = get_ue_golomb_long(gb); |
| 1177 | pps->log2_sao_offset_scale_chroma = get_ue_golomb_long(gb); |
| 1178 | |
| 1179 | return(0); |
| 1180 | } |
| 1181 | |
| 1182 | int ff_hevc_decode_nal_pps(HEVCContext *s) |
| 1183 | { |
| 1184 | GetBitContext *gb = &s->HEVClc->gb; |
| 1185 | HEVCSPS *sps = NULL; |
| 1186 | int pic_area_in_ctbs; |
| 1187 | int log2_diff_ctb_min_tb_size; |
| 1188 | int i, j, x, y, ctb_addr_rs, tile_id; |
| 1189 | int ret = 0; |
| 1190 | unsigned int pps_id = 0; |
| 1191 | |
| 1192 | AVBufferRef *pps_buf; |
| 1193 | HEVCPPS *pps = av_mallocz(sizeof(*pps)); |
| 1194 | |
| 1195 | if (!pps) |
| 1196 | return AVERROR(ENOMEM); |
| 1197 | |
| 1198 | pps_buf = av_buffer_create((uint8_t *)pps, sizeof(*pps), |
| 1199 | hevc_pps_free, NULL, 0); |
| 1200 | if (!pps_buf) { |
| 1201 | av_freep(&pps); |
| 1202 | return AVERROR(ENOMEM); |
| 1203 | } |
| 1204 | |
| 1205 | av_log(s->avctx, AV_LOG_DEBUG, "Decoding PPS\n"); |
| 1206 | |
| 1207 | // Default values |
| 1208 | pps->loop_filter_across_tiles_enabled_flag = 1; |
| 1209 | pps->num_tile_columns = 1; |
| 1210 | pps->num_tile_rows = 1; |
| 1211 | pps->uniform_spacing_flag = 1; |
| 1212 | pps->disable_dbf = 0; |
| 1213 | pps->beta_offset = 0; |
| 1214 | pps->tc_offset = 0; |
| 1215 | pps->log2_max_transform_skip_block_size = 2; |
| 1216 | |
| 1217 | // Coded parameters |
| 1218 | pps_id = get_ue_golomb_long(gb); |
| 1219 | if (pps_id >= MAX_PPS_COUNT) { |
| 1220 | av_log(s->avctx, AV_LOG_ERROR, "PPS id out of range: %d\n", pps_id); |
| 1221 | ret = AVERROR_INVALIDDATA; |
| 1222 | goto err; |
| 1223 | } |
| 1224 | pps->sps_id = get_ue_golomb_long(gb); |
| 1225 | if (pps->sps_id >= MAX_SPS_COUNT) { |
| 1226 | av_log(s->avctx, AV_LOG_ERROR, "SPS id out of range: %d\n", pps->sps_id); |
| 1227 | ret = AVERROR_INVALIDDATA; |
| 1228 | goto err; |
| 1229 | } |
| 1230 | if (!s->sps_list[pps->sps_id]) { |
| 1231 | av_log(s->avctx, AV_LOG_ERROR, "SPS %u does not exist.\n", pps->sps_id); |
| 1232 | ret = AVERROR_INVALIDDATA; |
| 1233 | goto err; |
| 1234 | } |
| 1235 | sps = (HEVCSPS *)s->sps_list[pps->sps_id]->data; |
| 1236 | |
| 1237 | pps->dependent_slice_segments_enabled_flag = get_bits1(gb); |
| 1238 | pps->output_flag_present_flag = get_bits1(gb); |
| 1239 | pps->num_extra_slice_header_bits = get_bits(gb, 3); |
| 1240 | |
| 1241 | pps->sign_data_hiding_flag = get_bits1(gb); |
| 1242 | |
| 1243 | pps->cabac_init_present_flag = get_bits1(gb); |
| 1244 | |
| 1245 | pps->num_ref_idx_l0_default_active = get_ue_golomb_long(gb) + 1; |
| 1246 | pps->num_ref_idx_l1_default_active = get_ue_golomb_long(gb) + 1; |
| 1247 | |
| 1248 | pps->pic_init_qp_minus26 = get_se_golomb(gb); |
| 1249 | |
| 1250 | pps->constrained_intra_pred_flag = get_bits1(gb); |
| 1251 | pps->transform_skip_enabled_flag = get_bits1(gb); |
| 1252 | |
| 1253 | pps->cu_qp_delta_enabled_flag = get_bits1(gb); |
| 1254 | pps->diff_cu_qp_delta_depth = 0; |
| 1255 | if (pps->cu_qp_delta_enabled_flag) |
| 1256 | pps->diff_cu_qp_delta_depth = get_ue_golomb_long(gb); |
| 1257 | |
| 1258 | if (pps->diff_cu_qp_delta_depth < 0 || |
| 1259 | pps->diff_cu_qp_delta_depth > sps->log2_diff_max_min_coding_block_size) { |
| 1260 | av_log(s->avctx, AV_LOG_ERROR, "diff_cu_qp_delta_depth %d is invalid\n", |
| 1261 | pps->diff_cu_qp_delta_depth); |
| 1262 | ret = AVERROR_INVALIDDATA; |
| 1263 | goto err; |
| 1264 | } |
| 1265 | |
| 1266 | pps->cb_qp_offset = get_se_golomb(gb); |
| 1267 | if (pps->cb_qp_offset < -12 || pps->cb_qp_offset > 12) { |
| 1268 | av_log(s->avctx, AV_LOG_ERROR, "pps_cb_qp_offset out of range: %d\n", |
| 1269 | pps->cb_qp_offset); |
| 1270 | ret = AVERROR_INVALIDDATA; |
| 1271 | goto err; |
| 1272 | } |
| 1273 | pps->cr_qp_offset = get_se_golomb(gb); |
| 1274 | if (pps->cr_qp_offset < -12 || pps->cr_qp_offset > 12) { |
| 1275 | av_log(s->avctx, AV_LOG_ERROR, "pps_cr_qp_offset out of range: %d\n", |
| 1276 | pps->cr_qp_offset); |
| 1277 | ret = AVERROR_INVALIDDATA; |
| 1278 | goto err; |
| 1279 | } |
| 1280 | pps->pic_slice_level_chroma_qp_offsets_present_flag = get_bits1(gb); |
| 1281 | |
| 1282 | pps->weighted_pred_flag = get_bits1(gb); |
| 1283 | pps->weighted_bipred_flag = get_bits1(gb); |
| 1284 | |
| 1285 | pps->transquant_bypass_enable_flag = get_bits1(gb); |
| 1286 | pps->tiles_enabled_flag = get_bits1(gb); |
| 1287 | pps->entropy_coding_sync_enabled_flag = get_bits1(gb); |
| 1288 | |
| 1289 | if (pps->tiles_enabled_flag) { |
| 1290 | pps->num_tile_columns = get_ue_golomb_long(gb) + 1; |
| 1291 | pps->num_tile_rows = get_ue_golomb_long(gb) + 1; |
| 1292 | if (pps->num_tile_columns == 0 || |
| 1293 | pps->num_tile_columns >= sps->width) { |
| 1294 | av_log(s->avctx, AV_LOG_ERROR, "num_tile_columns_minus1 out of range: %d\n", |
| 1295 | pps->num_tile_columns - 1); |
| 1296 | ret = AVERROR_INVALIDDATA; |
| 1297 | goto err; |
| 1298 | } |
| 1299 | if (pps->num_tile_rows == 0 || |
| 1300 | pps->num_tile_rows >= sps->height) { |
| 1301 | av_log(s->avctx, AV_LOG_ERROR, "num_tile_rows_minus1 out of range: %d\n", |
| 1302 | pps->num_tile_rows - 1); |
| 1303 | ret = AVERROR_INVALIDDATA; |
| 1304 | goto err; |
| 1305 | } |
| 1306 | |
| 1307 | pps->column_width = av_malloc_array(pps->num_tile_columns, sizeof(*pps->column_width)); |
| 1308 | pps->row_height = av_malloc_array(pps->num_tile_rows, sizeof(*pps->row_height)); |
| 1309 | if (!pps->column_width || !pps->row_height) { |
| 1310 | ret = AVERROR(ENOMEM); |
| 1311 | goto err; |
| 1312 | } |
| 1313 | |
| 1314 | pps->uniform_spacing_flag = get_bits1(gb); |
| 1315 | if (!pps->uniform_spacing_flag) { |
| 1316 | uint64_t sum = 0; |
| 1317 | for (i = 0; i < pps->num_tile_columns - 1; i++) { |
| 1318 | pps->column_width[i] = get_ue_golomb_long(gb) + 1; |
| 1319 | sum += pps->column_width[i]; |
| 1320 | } |
| 1321 | if (sum >= sps->ctb_width) { |
| 1322 | av_log(s->avctx, AV_LOG_ERROR, "Invalid tile widths.\n"); |
| 1323 | ret = AVERROR_INVALIDDATA; |
| 1324 | goto err; |
| 1325 | } |
| 1326 | pps->column_width[pps->num_tile_columns - 1] = sps->ctb_width - sum; |
| 1327 | |
| 1328 | sum = 0; |
| 1329 | for (i = 0; i < pps->num_tile_rows - 1; i++) { |
| 1330 | pps->row_height[i] = get_ue_golomb_long(gb) + 1; |
| 1331 | sum += pps->row_height[i]; |
| 1332 | } |
| 1333 | if (sum >= sps->ctb_height) { |
| 1334 | av_log(s->avctx, AV_LOG_ERROR, "Invalid tile heights.\n"); |
| 1335 | ret = AVERROR_INVALIDDATA; |
| 1336 | goto err; |
| 1337 | } |
| 1338 | pps->row_height[pps->num_tile_rows - 1] = sps->ctb_height - sum; |
| 1339 | } |
| 1340 | pps->loop_filter_across_tiles_enabled_flag = get_bits1(gb); |
| 1341 | } |
| 1342 | |
| 1343 | pps->seq_loop_filter_across_slices_enabled_flag = get_bits1(gb); |
| 1344 | |
| 1345 | pps->deblocking_filter_control_present_flag = get_bits1(gb); |
| 1346 | if (pps->deblocking_filter_control_present_flag) { |
| 1347 | pps->deblocking_filter_override_enabled_flag = get_bits1(gb); |
| 1348 | pps->disable_dbf = get_bits1(gb); |
| 1349 | if (!pps->disable_dbf) { |
| 1350 | pps->beta_offset = get_se_golomb(gb) * 2; |
| 1351 | pps->tc_offset = get_se_golomb(gb) * 2; |
| 1352 | if (pps->beta_offset/2 < -6 || pps->beta_offset/2 > 6) { |
| 1353 | av_log(s->avctx, AV_LOG_ERROR, "pps_beta_offset_div2 out of range: %d\n", |
| 1354 | pps->beta_offset/2); |
| 1355 | ret = AVERROR_INVALIDDATA; |
| 1356 | goto err; |
| 1357 | } |
| 1358 | if (pps->tc_offset/2 < -6 || pps->tc_offset/2 > 6) { |
| 1359 | av_log(s->avctx, AV_LOG_ERROR, "pps_tc_offset_div2 out of range: %d\n", |
| 1360 | pps->tc_offset/2); |
| 1361 | ret = AVERROR_INVALIDDATA; |
| 1362 | goto err; |
| 1363 | } |
| 1364 | } |
| 1365 | } |
| 1366 | |
| 1367 | pps->scaling_list_data_present_flag = get_bits1(gb); |
| 1368 | if (pps->scaling_list_data_present_flag) { |
| 1369 | set_default_scaling_list_data(&pps->scaling_list); |
| 1370 | ret = scaling_list_data(s, &pps->scaling_list, sps); |
| 1371 | if (ret < 0) |
| 1372 | goto err; |
| 1373 | } |
| 1374 | pps->lists_modification_present_flag = get_bits1(gb); |
| 1375 | pps->log2_parallel_merge_level = get_ue_golomb_long(gb) + 2; |
| 1376 | if (pps->log2_parallel_merge_level > sps->log2_ctb_size) { |
| 1377 | av_log(s->avctx, AV_LOG_ERROR, "log2_parallel_merge_level_minus2 out of range: %d\n", |
| 1378 | pps->log2_parallel_merge_level - 2); |
| 1379 | ret = AVERROR_INVALIDDATA; |
| 1380 | goto err; |
| 1381 | } |
| 1382 | |
| 1383 | pps->slice_header_extension_present_flag = get_bits1(gb); |
| 1384 | |
| 1385 | if (get_bits1(gb)) { // pps_extension_present_flag |
| 1386 | int pps_range_extensions_flag = get_bits1(gb); |
| 1387 | /* int pps_extension_7bits = */ get_bits(gb, 7); |
| 1388 | if (sps->ptl.general_ptl.profile_idc == FF_PROFILE_HEVC_REXT && pps_range_extensions_flag) { |
| 1389 | if ((ret = pps_range_extensions(s, pps, sps)) < 0) |
| 1390 | goto err; |
| 1391 | } |
| 1392 | } |
| 1393 | |
| 1394 | // Inferred parameters |
| 1395 | pps->col_bd = av_malloc_array(pps->num_tile_columns + 1, sizeof(*pps->col_bd)); |
| 1396 | pps->row_bd = av_malloc_array(pps->num_tile_rows + 1, sizeof(*pps->row_bd)); |
| 1397 | pps->col_idxX = av_malloc_array(sps->ctb_width, sizeof(*pps->col_idxX)); |
| 1398 | if (!pps->col_bd || !pps->row_bd || !pps->col_idxX) { |
| 1399 | ret = AVERROR(ENOMEM); |
| 1400 | goto err; |
| 1401 | } |
| 1402 | |
| 1403 | if (pps->uniform_spacing_flag) { |
| 1404 | if (!pps->column_width) { |
| 1405 | pps->column_width = av_malloc_array(pps->num_tile_columns, sizeof(*pps->column_width)); |
| 1406 | pps->row_height = av_malloc_array(pps->num_tile_rows, sizeof(*pps->row_height)); |
| 1407 | } |
| 1408 | if (!pps->column_width || !pps->row_height) { |
| 1409 | ret = AVERROR(ENOMEM); |
| 1410 | goto err; |
| 1411 | } |
| 1412 | |
| 1413 | for (i = 0; i < pps->num_tile_columns; i++) { |
| 1414 | pps->column_width[i] = ((i + 1) * sps->ctb_width) / pps->num_tile_columns - |
| 1415 | (i * sps->ctb_width) / pps->num_tile_columns; |
| 1416 | } |
| 1417 | |
| 1418 | for (i = 0; i < pps->num_tile_rows; i++) { |
| 1419 | pps->row_height[i] = ((i + 1) * sps->ctb_height) / pps->num_tile_rows - |
| 1420 | (i * sps->ctb_height) / pps->num_tile_rows; |
| 1421 | } |
| 1422 | } |
| 1423 | |
| 1424 | pps->col_bd[0] = 0; |
| 1425 | for (i = 0; i < pps->num_tile_columns; i++) |
| 1426 | pps->col_bd[i + 1] = pps->col_bd[i] + pps->column_width[i]; |
| 1427 | |
| 1428 | pps->row_bd[0] = 0; |
| 1429 | for (i = 0; i < pps->num_tile_rows; i++) |
| 1430 | pps->row_bd[i + 1] = pps->row_bd[i] + pps->row_height[i]; |
| 1431 | |
| 1432 | for (i = 0, j = 0; i < sps->ctb_width; i++) { |
| 1433 | if (i > pps->col_bd[j]) |
| 1434 | j++; |
| 1435 | pps->col_idxX[i] = j; |
| 1436 | } |
| 1437 | |
| 1438 | /** |
| 1439 | * 6.5 |
| 1440 | */ |
| 1441 | pic_area_in_ctbs = sps->ctb_width * sps->ctb_height; |
| 1442 | |
| 1443 | pps->ctb_addr_rs_to_ts = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->ctb_addr_rs_to_ts)); |
| 1444 | pps->ctb_addr_ts_to_rs = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->ctb_addr_ts_to_rs)); |
| 1445 | pps->tile_id = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->tile_id)); |
| 1446 | pps->min_tb_addr_zs_tab = av_malloc_array((sps->tb_mask+2) * (sps->tb_mask+2), sizeof(*pps->min_tb_addr_zs_tab)); |
| 1447 | if (!pps->ctb_addr_rs_to_ts || !pps->ctb_addr_ts_to_rs || |
| 1448 | !pps->tile_id || !pps->min_tb_addr_zs_tab) { |
| 1449 | ret = AVERROR(ENOMEM); |
| 1450 | goto err; |
| 1451 | } |
| 1452 | |
| 1453 | for (ctb_addr_rs = 0; ctb_addr_rs < pic_area_in_ctbs; ctb_addr_rs++) { |
| 1454 | int tb_x = ctb_addr_rs % sps->ctb_width; |
| 1455 | int tb_y = ctb_addr_rs / sps->ctb_width; |
| 1456 | int tile_x = 0; |
| 1457 | int tile_y = 0; |
| 1458 | int val = 0; |
| 1459 | |
| 1460 | for (i = 0; i < pps->num_tile_columns; i++) { |
| 1461 | if (tb_x < pps->col_bd[i + 1]) { |
| 1462 | tile_x = i; |
| 1463 | break; |
| 1464 | } |
| 1465 | } |
| 1466 | |
| 1467 | for (i = 0; i < pps->num_tile_rows; i++) { |
| 1468 | if (tb_y < pps->row_bd[i + 1]) { |
| 1469 | tile_y = i; |
| 1470 | break; |
| 1471 | } |
| 1472 | } |
| 1473 | |
| 1474 | for (i = 0; i < tile_x; i++) |
| 1475 | val += pps->row_height[tile_y] * pps->column_width[i]; |
| 1476 | for (i = 0; i < tile_y; i++) |
| 1477 | val += sps->ctb_width * pps->row_height[i]; |
| 1478 | |
| 1479 | val += (tb_y - pps->row_bd[tile_y]) * pps->column_width[tile_x] + |
| 1480 | tb_x - pps->col_bd[tile_x]; |
| 1481 | |
| 1482 | pps->ctb_addr_rs_to_ts[ctb_addr_rs] = val; |
| 1483 | pps->ctb_addr_ts_to_rs[val] = ctb_addr_rs; |
| 1484 | } |
| 1485 | |
| 1486 | for (j = 0, tile_id = 0; j < pps->num_tile_rows; j++) |
| 1487 | for (i = 0; i < pps->num_tile_columns; i++, tile_id++) |
| 1488 | for (y = pps->row_bd[j]; y < pps->row_bd[j + 1]; y++) |
| 1489 | for (x = pps->col_bd[i]; x < pps->col_bd[i + 1]; x++) |
| 1490 | pps->tile_id[pps->ctb_addr_rs_to_ts[y * sps->ctb_width + x]] = tile_id; |
| 1491 | |
| 1492 | pps->tile_pos_rs = av_malloc_array(tile_id, sizeof(*pps->tile_pos_rs)); |
| 1493 | if (!pps->tile_pos_rs) { |
| 1494 | ret = AVERROR(ENOMEM); |
| 1495 | goto err; |
| 1496 | } |
| 1497 | |
| 1498 | for (j = 0; j < pps->num_tile_rows; j++) |
| 1499 | for (i = 0; i < pps->num_tile_columns; i++) |
| 1500 | pps->tile_pos_rs[j * pps->num_tile_columns + i] = pps->row_bd[j] * sps->ctb_width + pps->col_bd[i]; |
| 1501 | |
| 1502 | log2_diff_ctb_min_tb_size = sps->log2_ctb_size - sps->log2_min_tb_size; |
| 1503 | pps->min_tb_addr_zs = &pps->min_tb_addr_zs_tab[1*(sps->tb_mask+2)+1]; |
| 1504 | for (y = 0; y < sps->tb_mask+2; y++) { |
| 1505 | pps->min_tb_addr_zs_tab[y*(sps->tb_mask+2)] = -1; |
| 1506 | pps->min_tb_addr_zs_tab[y] = -1; |
| 1507 | } |
| 1508 | for (y = 0; y < sps->tb_mask+1; y++) { |
| 1509 | for (x = 0; x < sps->tb_mask+1; x++) { |
| 1510 | int tb_x = x >> log2_diff_ctb_min_tb_size; |
| 1511 | int tb_y = y >> log2_diff_ctb_min_tb_size; |
| 1512 | int ctb_addr_rs = sps->ctb_width * tb_y + tb_x; |
| 1513 | int val = pps->ctb_addr_rs_to_ts[ctb_addr_rs] << |
| 1514 | (log2_diff_ctb_min_tb_size * 2); |
| 1515 | for (i = 0; i < log2_diff_ctb_min_tb_size; i++) { |
| 1516 | int m = 1 << i; |
| 1517 | val += (m & x ? m * m : 0) + (m & y ? 2 * m * m : 0); |
| 1518 | } |
| 1519 | pps->min_tb_addr_zs[y * (sps->tb_mask+2) + x] = val; |
| 1520 | } |
| 1521 | } |
| 1522 | |
| 1523 | if (get_bits_left(gb) < 0) { |
| 1524 | av_log(s->avctx, AV_LOG_ERROR, |
| 1525 | "Overread PPS by %d bits\n", -get_bits_left(gb)); |
| 1526 | goto err; |
| 1527 | } |
| 1528 | |
| 1529 | av_buffer_unref(&s->pps_list[pps_id]); |
| 1530 | s->pps_list[pps_id] = pps_buf; |
| 1531 | |
| 1532 | return 0; |
| 1533 | |
| 1534 | err: |
| 1535 | av_buffer_unref(&pps_buf); |
| 1536 | return ret; |
| 1537 | } |