| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * H.26L/H.264/AVC/JVT/14496-10/... parameter set decoding | ||
| 3 | * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at> | ||
| 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 | /** | ||
| 23 | * @file | ||
| 24 | * H.264 / AVC / MPEG-4 part10 parameter set decoding. | ||
| 25 | * @author Michael Niedermayer <michaelni@gmx.at> | ||
| 26 | */ | ||
| 27 | |||
| 28 | #include <inttypes.h> | ||
| 29 | |||
| 30 | #include "libavutil/imgutils.h" | ||
| 31 | #include "mathops.h" | ||
| 32 | #include "avcodec.h" | ||
| 33 | #include "h264data.h" | ||
| 34 | #include "h2645_vui.h" | ||
| 35 | #include "h264_ps.h" | ||
| 36 | #include "golomb.h" | ||
| 37 | |||
| 38 | #define MIN_LOG2_MAX_FRAME_NUM 4 | ||
| 39 | |||
| 40 | static const uint8_t default_scaling4[2][16] = { | ||
| 41 | { 6, 13, 20, 28, 13, 20, 28, 32, | ||
| 42 | 20, 28, 32, 37, 28, 32, 37, 42 }, | ||
| 43 | { 10, 14, 20, 24, 14, 20, 24, 27, | ||
| 44 | 20, 24, 27, 30, 24, 27, 30, 34 } | ||
| 45 | }; | ||
| 46 | |||
| 47 | static const uint8_t default_scaling8[2][64] = { | ||
| 48 | { 6, 10, 13, 16, 18, 23, 25, 27, | ||
| 49 | 10, 11, 16, 18, 23, 25, 27, 29, | ||
| 50 | 13, 16, 18, 23, 25, 27, 29, 31, | ||
| 51 | 16, 18, 23, 25, 27, 29, 31, 33, | ||
| 52 | 18, 23, 25, 27, 29, 31, 33, 36, | ||
| 53 | 23, 25, 27, 29, 31, 33, 36, 38, | ||
| 54 | 25, 27, 29, 31, 33, 36, 38, 40, | ||
| 55 | 27, 29, 31, 33, 36, 38, 40, 42 }, | ||
| 56 | { 9, 13, 15, 17, 19, 21, 22, 24, | ||
| 57 | 13, 13, 17, 19, 21, 22, 24, 25, | ||
| 58 | 15, 17, 19, 21, 22, 24, 25, 27, | ||
| 59 | 17, 19, 21, 22, 24, 25, 27, 28, | ||
| 60 | 19, 21, 22, 24, 25, 27, 28, 30, | ||
| 61 | 21, 22, 24, 25, 27, 28, 30, 32, | ||
| 62 | 22, 24, 25, 27, 28, 30, 32, 33, | ||
| 63 | 24, 25, 27, 28, 30, 32, 33, 35 } | ||
| 64 | }; | ||
| 65 | |||
| 66 | /* maximum number of MBs in the DPB for a given level */ | ||
| 67 | static const int level_max_dpb_mbs[][2] = { | ||
| 68 | { 10, 396 }, | ||
| 69 | { 11, 900 }, | ||
| 70 | { 12, 2376 }, | ||
| 71 | { 13, 2376 }, | ||
| 72 | { 20, 2376 }, | ||
| 73 | { 21, 4752 }, | ||
| 74 | { 22, 8100 }, | ||
| 75 | { 30, 8100 }, | ||
| 76 | { 31, 18000 }, | ||
| 77 | { 32, 20480 }, | ||
| 78 | { 40, 32768 }, | ||
| 79 | { 41, 32768 }, | ||
| 80 | { 42, 34816 }, | ||
| 81 | { 50, 110400 }, | ||
| 82 | { 51, 184320 }, | ||
| 83 | { 52, 184320 }, | ||
| 84 | }; | ||
| 85 | |||
| 86 | 14997 | static void remove_pps(H264ParamSets *s, int id) | |
| 87 | { | ||
| 88 | 14997 | av_buffer_unref(&s->pps_list[id]); | |
| 89 | 14997 | } | |
| 90 | |||
| 91 | 1052 | static void remove_sps(H264ParamSets *s, int id) | |
| 92 | { | ||
| 93 | #if 0 | ||
| 94 | int i; | ||
| 95 | if (s->sps_list[id]) { | ||
| 96 | /* drop all PPS that depend on this SPS */ | ||
| 97 | for (i = 0; i < FF_ARRAY_ELEMS(s->pps_list); i++) | ||
| 98 | if (s->pps_list[i] && ((PPS*)s->pps_list[i]->data)->sps_id == id) | ||
| 99 | remove_pps(s, i); | ||
| 100 | } | ||
| 101 | #endif | ||
| 102 | 1052 | av_buffer_unref(&s->sps_list[id]); | |
| 103 | 1052 | } | |
| 104 | |||
| 105 | 138 | static inline int decode_hrd_parameters(GetBitContext *gb, void *logctx, | |
| 106 | SPS *sps) | ||
| 107 | { | ||
| 108 | int cpb_count, i; | ||
| 109 | 138 | cpb_count = get_ue_golomb_31(gb) + 1; | |
| 110 | |||
| 111 |
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138 | if (cpb_count > 32U) { |
| 112 | ✗ | av_log(logctx, AV_LOG_ERROR, "cpb_count %d invalid\n", cpb_count); | |
| 113 | ✗ | return AVERROR_INVALIDDATA; | |
| 114 | } | ||
| 115 | |||
| 116 | 138 | get_bits(gb, 4); /* bit_rate_scale */ | |
| 117 | 138 | get_bits(gb, 4); /* cpb_size_scale */ | |
| 118 |
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276 | for (i = 0; i < cpb_count; i++) { |
| 119 | 138 | get_ue_golomb_long(gb); /* bit_rate_value_minus1 */ | |
| 120 | 138 | get_ue_golomb_long(gb); /* cpb_size_value_minus1 */ | |
| 121 | 138 | get_bits1(gb); /* cbr_flag */ | |
| 122 | } | ||
| 123 | 138 | sps->initial_cpb_removal_delay_length = get_bits(gb, 5) + 1; | |
| 124 | 138 | sps->cpb_removal_delay_length = get_bits(gb, 5) + 1; | |
| 125 | 138 | sps->dpb_output_delay_length = get_bits(gb, 5) + 1; | |
| 126 | 138 | sps->time_offset_length = get_bits(gb, 5); | |
| 127 | 138 | sps->cpb_cnt = cpb_count; | |
| 128 | 138 | return 0; | |
| 129 | } | ||
| 130 | |||
| 131 | 815 | static inline int decode_vui_parameters(GetBitContext *gb, void *logctx, | |
| 132 | SPS *sps) | ||
| 133 | { | ||
| 134 | 815 | ff_h2645_decode_common_vui_params(gb, &sps->vui, logctx); | |
| 135 | |||
| 136 |
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815 | if (show_bits1(gb) && get_bits_left(gb) < 10) { |
| 137 | ✗ | av_log(logctx, AV_LOG_WARNING, "Truncated VUI (%d)\n", get_bits_left(gb)); | |
| 138 | ✗ | return 0; | |
| 139 | } | ||
| 140 | |||
| 141 | 815 | sps->timing_info_present_flag = get_bits1(gb); | |
| 142 |
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815 | if (sps->timing_info_present_flag) { |
| 143 | 739 | unsigned num_units_in_tick = get_bits_long(gb, 32); | |
| 144 | 739 | unsigned time_scale = get_bits_long(gb, 32); | |
| 145 |
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739 | if (!num_units_in_tick || !time_scale) { |
| 146 | ✗ | av_log(logctx, AV_LOG_ERROR, | |
| 147 | "time_scale/num_units_in_tick invalid or unsupported (%u/%u)\n", | ||
| 148 | time_scale, num_units_in_tick); | ||
| 149 | ✗ | sps->timing_info_present_flag = 0; | |
| 150 | } else { | ||
| 151 | 739 | sps->num_units_in_tick = num_units_in_tick; | |
| 152 | 739 | sps->time_scale = time_scale; | |
| 153 | } | ||
| 154 | 739 | sps->fixed_frame_rate_flag = get_bits1(gb); | |
| 155 | } | ||
| 156 | |||
| 157 | 815 | sps->nal_hrd_parameters_present_flag = get_bits1(gb); | |
| 158 |
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815 | if (sps->nal_hrd_parameters_present_flag) |
| 159 |
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102 | if (decode_hrd_parameters(gb, logctx, sps) < 0) |
| 160 | ✗ | return AVERROR_INVALIDDATA; | |
| 161 | 815 | sps->vcl_hrd_parameters_present_flag = get_bits1(gb); | |
| 162 |
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815 | if (sps->vcl_hrd_parameters_present_flag) |
| 163 |
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36 | if (decode_hrd_parameters(gb, logctx, sps) < 0) |
| 164 | ✗ | return AVERROR_INVALIDDATA; | |
| 165 |
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815 | if (sps->nal_hrd_parameters_present_flag || |
| 166 |
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713 | sps->vcl_hrd_parameters_present_flag) |
| 167 | 102 | get_bits1(gb); /* low_delay_hrd_flag */ | |
| 168 | 815 | sps->pic_struct_present_flag = get_bits1(gb); | |
| 169 |
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815 | if (!get_bits_left(gb)) |
| 170 | ✗ | return 0; | |
| 171 | 815 | sps->bitstream_restriction_flag = get_bits1(gb); | |
| 172 |
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815 | if (sps->bitstream_restriction_flag) { |
| 173 | 662 | get_bits1(gb); /* motion_vectors_over_pic_boundaries_flag */ | |
| 174 | 662 | get_ue_golomb_31(gb); /* max_bytes_per_pic_denom */ | |
| 175 | 662 | get_ue_golomb_31(gb); /* max_bits_per_mb_denom */ | |
| 176 | 662 | get_ue_golomb_31(gb); /* log2_max_mv_length_horizontal */ | |
| 177 | 662 | get_ue_golomb_31(gb); /* log2_max_mv_length_vertical */ | |
| 178 | 662 | sps->num_reorder_frames = get_ue_golomb_31(gb); | |
| 179 | 662 | get_ue_golomb_31(gb); /*max_dec_frame_buffering*/ | |
| 180 | |||
| 181 |
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662 | if (get_bits_left(gb) < 0) { |
| 182 | 2 | sps->num_reorder_frames = 0; | |
| 183 | 2 | sps->bitstream_restriction_flag = 0; | |
| 184 | } | ||
| 185 | |||
| 186 |
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662 | if (sps->num_reorder_frames > 16U |
| 187 | /* max_dec_frame_buffering || max_dec_frame_buffering > 16 */) { | ||
| 188 | ✗ | av_log(logctx, AV_LOG_ERROR, | |
| 189 | "Clipping illegal num_reorder_frames %d\n", | ||
| 190 | sps->num_reorder_frames); | ||
| 191 | ✗ | sps->num_reorder_frames = 16; | |
| 192 | ✗ | return AVERROR_INVALIDDATA; | |
| 193 | } | ||
| 194 | } | ||
| 195 | |||
| 196 | 815 | return 0; | |
| 197 | } | ||
| 198 | |||
| 199 | 2320 | static int decode_scaling_list(GetBitContext *gb, uint8_t *factors, int size, | |
| 200 | const uint8_t *jvt_list, | ||
| 201 | const uint8_t *fallback_list) | ||
| 202 | { | ||
| 203 | 2320 | int i, last = 8, next = 8; | |
| 204 |
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2320 | const uint8_t *scan = size == 16 ? ff_zigzag_scan : ff_zigzag_direct; |
| 205 |
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2320 | if (!get_bits1(gb)) /* matrix not written, we use the predicted one */ |
| 206 | 1140 | memcpy(factors, fallback_list, size * sizeof(uint8_t)); | |
| 207 | else | ||
| 208 |
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31740 | for (i = 0; i < size; i++) { |
| 209 |
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30664 | if (next) { |
| 210 | 28656 | int v = get_se_golomb(gb); | |
| 211 |
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28656 | if (v < -128 || v > 127) { |
| 212 | ✗ | av_log(NULL, AV_LOG_ERROR, "delta scale %d is invalid\n", v); | |
| 213 | ✗ | return AVERROR_INVALIDDATA; | |
| 214 | } | ||
| 215 | 28656 | next = (last + v) & 0xff; | |
| 216 | } | ||
| 217 |
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30664 | if (!i && !next) { /* matrix not written, we use the preset one */ |
| 218 | 104 | memcpy(factors, jvt_list, size * sizeof(uint8_t)); | |
| 219 | 104 | break; | |
| 220 | } | ||
| 221 |
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30560 | last = factors[scan[i]] = next ? next : last; |
| 222 | } | ||
| 223 | 2320 | return 0; | |
| 224 | } | ||
| 225 | |||
| 226 | /* returns non zero if the provided SPS scaling matrix has been filled */ | ||
| 227 | 1562 | static int decode_scaling_matrices(GetBitContext *gb, const SPS *sps, | |
| 228 | const PPS *pps, int is_sps, | ||
| 229 | uint8_t(*scaling_matrix4)[16], | ||
| 230 | uint8_t(*scaling_matrix8)[64]) | ||
| 231 | { | ||
| 232 |
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1562 | int fallback_sps = !is_sps && sps->scaling_matrix_present; |
| 233 | 6248 | const uint8_t *fallback[4] = { | |
| 234 |
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1562 | fallback_sps ? sps->scaling_matrix4[0] : default_scaling4[0], |
| 235 |
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1562 | fallback_sps ? sps->scaling_matrix4[3] : default_scaling4[1], |
| 236 |
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1562 | fallback_sps ? sps->scaling_matrix8[0] : default_scaling8[0], |
| 237 |
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1562 | fallback_sps ? sps->scaling_matrix8[3] : default_scaling8[1] |
| 238 | }; | ||
| 239 | 1562 | int ret = 0; | |
| 240 |
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1562 | if (get_bits1(gb)) { |
| 241 | 290 | ret |= decode_scaling_list(gb, scaling_matrix4[0], 16, default_scaling4[0], fallback[0]); // Intra, Y | |
| 242 | 290 | ret |= decode_scaling_list(gb, scaling_matrix4[1], 16, default_scaling4[0], scaling_matrix4[0]); // Intra, Cr | |
| 243 | 290 | ret |= decode_scaling_list(gb, scaling_matrix4[2], 16, default_scaling4[0], scaling_matrix4[1]); // Intra, Cb | |
| 244 | 290 | ret |= decode_scaling_list(gb, scaling_matrix4[3], 16, default_scaling4[1], fallback[1]); // Inter, Y | |
| 245 | 290 | ret |= decode_scaling_list(gb, scaling_matrix4[4], 16, default_scaling4[1], scaling_matrix4[3]); // Inter, Cr | |
| 246 | 290 | ret |= decode_scaling_list(gb, scaling_matrix4[5], 16, default_scaling4[1], scaling_matrix4[4]); // Inter, Cb | |
| 247 |
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290 | if (is_sps || pps->transform_8x8_mode) { |
| 248 | 290 | ret |= decode_scaling_list(gb, scaling_matrix8[0], 64, default_scaling8[0], fallback[2]); // Intra, Y | |
| 249 | 290 | ret |= decode_scaling_list(gb, scaling_matrix8[3], 64, default_scaling8[1], fallback[3]); // Inter, Y | |
| 250 |
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290 | if (sps->chroma_format_idc == 3) { |
| 251 | ✗ | ret |= decode_scaling_list(gb, scaling_matrix8[1], 64, default_scaling8[0], scaling_matrix8[0]); // Intra, Cr | |
| 252 | ✗ | ret |= decode_scaling_list(gb, scaling_matrix8[4], 64, default_scaling8[1], scaling_matrix8[3]); // Inter, Cr | |
| 253 | ✗ | ret |= decode_scaling_list(gb, scaling_matrix8[2], 64, default_scaling8[0], scaling_matrix8[1]); // Intra, Cb | |
| 254 | ✗ | ret |= decode_scaling_list(gb, scaling_matrix8[5], 64, default_scaling8[1], scaling_matrix8[4]); // Inter, Cb | |
| 255 | } | ||
| 256 | } | ||
| 257 |
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290 | if (!ret) |
| 258 | 290 | ret = is_sps; | |
| 259 | } | ||
| 260 | |||
| 261 | 1562 | return ret; | |
| 262 | } | ||
| 263 | |||
| 264 | 1002 | void ff_h264_ps_uninit(H264ParamSets *ps) | |
| 265 | { | ||
| 266 | int i; | ||
| 267 | |||
| 268 |
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33066 | for (i = 0; i < MAX_SPS_COUNT; i++) |
| 269 | 32064 | av_buffer_unref(&ps->sps_list[i]); | |
| 270 | |||
| 271 |
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257514 | for (i = 0; i < MAX_PPS_COUNT; i++) |
| 272 | 256512 | av_buffer_unref(&ps->pps_list[i]); | |
| 273 | |||
| 274 | 1002 | av_buffer_unref(&ps->pps_ref); | |
| 275 | |||
| 276 | 1002 | ps->pps = NULL; | |
| 277 | 1002 | ps->sps = NULL; | |
| 278 | 1002 | } | |
| 279 | |||
| 280 | 2441 | int ff_h264_decode_seq_parameter_set(GetBitContext *gb, AVCodecContext *avctx, | |
| 281 | H264ParamSets *ps, int ignore_truncation) | ||
| 282 | { | ||
| 283 | AVBufferRef *sps_buf; | ||
| 284 | 2441 | int profile_idc, level_idc, constraint_set_flags = 0; | |
| 285 | unsigned int sps_id; | ||
| 286 | int i, log2_max_frame_num_minus4; | ||
| 287 | SPS *sps; | ||
| 288 | int ret; | ||
| 289 | |||
| 290 | 2441 | sps_buf = av_buffer_allocz(sizeof(*sps)); | |
| 291 |
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2441 | if (!sps_buf) |
| 292 | ✗ | return AVERROR(ENOMEM); | |
| 293 | 2441 | sps = (SPS*)sps_buf->data; | |
| 294 | |||
| 295 | 2441 | sps->data_size = gb->buffer_end - gb->buffer; | |
| 296 |
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2441 | if (sps->data_size > sizeof(sps->data)) { |
| 297 | ✗ | av_log(avctx, AV_LOG_DEBUG, "Truncating likely oversized SPS\n"); | |
| 298 | ✗ | sps->data_size = sizeof(sps->data); | |
| 299 | } | ||
| 300 | 2441 | memcpy(sps->data, gb->buffer, sps->data_size); | |
| 301 | |||
| 302 | // Re-add the removed stop bit (may be used by hwaccels). | ||
| 303 |
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2441 | if (!(gb->size_in_bits & 7) && sps->data_size < sizeof(sps->data)) |
| 304 | 981 | sps->data[sps->data_size++] = 0x80; | |
| 305 | |||
| 306 | 2441 | profile_idc = get_bits(gb, 8); | |
| 307 | 2441 | constraint_set_flags |= get_bits1(gb) << 0; // constraint_set0_flag | |
| 308 | 2441 | constraint_set_flags |= get_bits1(gb) << 1; // constraint_set1_flag | |
| 309 | 2441 | constraint_set_flags |= get_bits1(gb) << 2; // constraint_set2_flag | |
| 310 | 2441 | constraint_set_flags |= get_bits1(gb) << 3; // constraint_set3_flag | |
| 311 | 2441 | constraint_set_flags |= get_bits1(gb) << 4; // constraint_set4_flag | |
| 312 | 2441 | constraint_set_flags |= get_bits1(gb) << 5; // constraint_set5_flag | |
| 313 | 2441 | skip_bits(gb, 2); // reserved_zero_2bits | |
| 314 | 2441 | level_idc = get_bits(gb, 8); | |
| 315 | 2441 | sps_id = get_ue_golomb_31(gb); | |
| 316 | |||
| 317 |
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2441 | if (sps_id >= MAX_SPS_COUNT) { |
| 318 | ✗ | av_log(avctx, AV_LOG_ERROR, "sps_id %u out of range\n", sps_id); | |
| 319 | ✗ | goto fail; | |
| 320 | } | ||
| 321 | |||
| 322 | 2441 | sps->sps_id = sps_id; | |
| 323 | 2441 | sps->time_offset_length = 24; | |
| 324 | 2441 | sps->profile_idc = profile_idc; | |
| 325 | 2441 | sps->constraint_set_flags = constraint_set_flags; | |
| 326 | 2441 | sps->level_idc = level_idc; | |
| 327 | 2441 | sps->vui.video_full_range_flag = -1; | |
| 328 | |||
| 329 | 2441 | memset(sps->scaling_matrix4, 16, sizeof(sps->scaling_matrix4)); | |
| 330 | 2441 | memset(sps->scaling_matrix8, 16, sizeof(sps->scaling_matrix8)); | |
| 331 | 2441 | sps->scaling_matrix_present = 0; | |
| 332 | 2441 | sps->vui.matrix_coeffs = AVCOL_SPC_UNSPECIFIED; | |
| 333 | |||
| 334 |
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2441 | if (sps->profile_idc == 100 || // High profile |
| 335 |
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1833 | sps->profile_idc == 110 || // High10 profile |
| 336 |
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1785 | sps->profile_idc == 122 || // High422 profile |
| 337 |
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1727 | sps->profile_idc == 244 || // High444 Predictive profile |
| 338 |
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|
1597 | sps->profile_idc == 44 || // Cavlc444 profile |
| 339 |
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1597 | sps->profile_idc == 83 || // Scalable Constrained High profile (SVC) |
| 340 |
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|
1597 | sps->profile_idc == 86 || // Scalable High Intra profile (SVC) |
| 341 |
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|
1597 | sps->profile_idc == 118 || // Stereo High profile (MVC) |
| 342 |
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|
1597 | sps->profile_idc == 128 || // Multiview High profile (MVC) |
| 343 |
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|
1597 | sps->profile_idc == 138 || // Multiview Depth High profile (MVCD) |
| 344 |
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|
1597 | sps->profile_idc == 144) { // old High444 profile |
| 345 | 844 | sps->chroma_format_idc = get_ue_golomb_31(gb); | |
| 346 |
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|
844 | if (sps->chroma_format_idc > 3U) { |
| 347 | ✗ | avpriv_request_sample(avctx, "chroma_format_idc %u", | |
| 348 | sps->chroma_format_idc); | ||
| 349 | ✗ | goto fail; | |
| 350 |
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|
844 | } else if (sps->chroma_format_idc == 3) { |
| 351 | 126 | sps->residual_color_transform_flag = get_bits1(gb); | |
| 352 |
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|
126 | if (sps->residual_color_transform_flag) { |
| 353 | ✗ | av_log(avctx, AV_LOG_ERROR, "separate color planes are not supported\n"); | |
| 354 | ✗ | goto fail; | |
| 355 | } | ||
| 356 | } | ||
| 357 | 844 | sps->bit_depth_luma = get_ue_golomb_31(gb) + 8; | |
| 358 | 844 | sps->bit_depth_chroma = get_ue_golomb_31(gb) + 8; | |
| 359 |
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|
844 | if (sps->bit_depth_chroma != sps->bit_depth_luma) { |
| 360 | ✗ | avpriv_request_sample(avctx, | |
| 361 | "Different chroma and luma bit depth"); | ||
| 362 | ✗ | goto fail; | |
| 363 | } | ||
| 364 |
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|
844 | if (sps->bit_depth_luma < 8 || sps->bit_depth_luma > 14 || |
| 365 |
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|
844 | sps->bit_depth_chroma < 8 || sps->bit_depth_chroma > 14) { |
| 366 | ✗ | av_log(avctx, AV_LOG_ERROR, "illegal bit depth value (%d, %d)\n", | |
| 367 | sps->bit_depth_luma, sps->bit_depth_chroma); | ||
| 368 | ✗ | goto fail; | |
| 369 | } | ||
| 370 | 844 | sps->transform_bypass = get_bits1(gb); | |
| 371 | 844 | ret = decode_scaling_matrices(gb, sps, NULL, 1, | |
| 372 | 844 | sps->scaling_matrix4, sps->scaling_matrix8); | |
| 373 |
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|
844 | if (ret < 0) |
| 374 | ✗ | goto fail; | |
| 375 | 844 | sps->scaling_matrix_present |= ret; | |
| 376 | } else { | ||
| 377 | 1597 | sps->chroma_format_idc = 1; | |
| 378 | 1597 | sps->bit_depth_luma = 8; | |
| 379 | 1597 | sps->bit_depth_chroma = 8; | |
| 380 | } | ||
| 381 | |||
| 382 | 2441 | log2_max_frame_num_minus4 = get_ue_golomb_31(gb); | |
| 383 |
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|
2441 | if (log2_max_frame_num_minus4 < MIN_LOG2_MAX_FRAME_NUM - 4 || |
| 384 | log2_max_frame_num_minus4 > MAX_LOG2_MAX_FRAME_NUM - 4) { | ||
| 385 | ✗ | av_log(avctx, AV_LOG_ERROR, | |
| 386 | "log2_max_frame_num_minus4 out of range (0-12): %d\n", | ||
| 387 | log2_max_frame_num_minus4); | ||
| 388 | ✗ | goto fail; | |
| 389 | } | ||
| 390 | 2441 | sps->log2_max_frame_num = log2_max_frame_num_minus4 + 4; | |
| 391 | |||
| 392 | 2441 | sps->poc_type = get_ue_golomb_31(gb); | |
| 393 | |||
| 394 |
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|
2441 | if (sps->poc_type == 0) { // FIXME #define |
| 395 | 1233 | unsigned t = get_ue_golomb_31(gb); | |
| 396 |
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|
1233 | if (t>12) { |
| 397 | ✗ | av_log(avctx, AV_LOG_ERROR, "log2_max_poc_lsb (%d) is out of range\n", t); | |
| 398 | ✗ | goto fail; | |
| 399 | } | ||
| 400 | 1233 | sps->log2_max_poc_lsb = t + 4; | |
| 401 |
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|
1208 | } else if (sps->poc_type == 1) { // FIXME #define |
| 402 | 76 | sps->delta_pic_order_always_zero_flag = get_bits1(gb); | |
| 403 | 76 | sps->offset_for_non_ref_pic = get_se_golomb_long(gb); | |
| 404 | 76 | sps->offset_for_top_to_bottom_field = get_se_golomb_long(gb); | |
| 405 | |||
| 406 |
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|
76 | if ( sps->offset_for_non_ref_pic == INT32_MIN |
| 407 |
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|
76 | || sps->offset_for_top_to_bottom_field == INT32_MIN |
| 408 | ) { | ||
| 409 | ✗ | av_log(avctx, AV_LOG_ERROR, | |
| 410 | "offset_for_non_ref_pic or offset_for_top_to_bottom_field is out of range\n"); | ||
| 411 | ✗ | goto fail; | |
| 412 | } | ||
| 413 | |||
| 414 | 76 | sps->poc_cycle_length = get_ue_golomb(gb); | |
| 415 | |||
| 416 |
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|
76 | if ((unsigned)sps->poc_cycle_length >= |
| 417 | FF_ARRAY_ELEMS(sps->offset_for_ref_frame)) { | ||
| 418 | ✗ | av_log(avctx, AV_LOG_ERROR, | |
| 419 | "poc_cycle_length overflow %d\n", sps->poc_cycle_length); | ||
| 420 | ✗ | goto fail; | |
| 421 | } | ||
| 422 | |||
| 423 |
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|
176 | for (i = 0; i < sps->poc_cycle_length; i++) { |
| 424 | 100 | sps->offset_for_ref_frame[i] = get_se_golomb_long(gb); | |
| 425 |
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|
100 | if (sps->offset_for_ref_frame[i] == INT32_MIN) { |
| 426 | ✗ | av_log(avctx, AV_LOG_ERROR, | |
| 427 | "offset_for_ref_frame is out of range\n"); | ||
| 428 | ✗ | goto fail; | |
| 429 | } | ||
| 430 | } | ||
| 431 |
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|
1132 | } else if (sps->poc_type != 2) { |
| 432 | ✗ | av_log(avctx, AV_LOG_ERROR, "illegal POC type %d\n", sps->poc_type); | |
| 433 | ✗ | goto fail; | |
| 434 | } | ||
| 435 | |||
| 436 | 2441 | sps->ref_frame_count = get_ue_golomb_31(gb); | |
| 437 |
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|
2441 | if (avctx->codec_tag == MKTAG('S', 'M', 'V', '2')) |
| 438 | ✗ | sps->ref_frame_count = FFMAX(2, sps->ref_frame_count); | |
| 439 |
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|
2441 | if (sps->ref_frame_count > H264_MAX_DPB_FRAMES) { |
| 440 | ✗ | av_log(avctx, AV_LOG_ERROR, | |
| 441 | "too many reference frames %d\n", sps->ref_frame_count); | ||
| 442 | ✗ | goto fail; | |
| 443 | } | ||
| 444 | 2441 | sps->gaps_in_frame_num_allowed_flag = get_bits1(gb); | |
| 445 | 2441 | sps->mb_width = get_ue_golomb(gb) + 1; | |
| 446 | 2441 | sps->mb_height = get_ue_golomb(gb) + 1; | |
| 447 | |||
| 448 | 2441 | sps->frame_mbs_only_flag = get_bits1(gb); | |
| 449 | |||
| 450 |
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|
2441 | if (sps->mb_height >= INT_MAX / 2U) { |
| 451 | ✗ | av_log(avctx, AV_LOG_ERROR, "height overflow\n"); | |
| 452 | ✗ | goto fail; | |
| 453 | } | ||
| 454 | 2441 | sps->mb_height *= 2 - sps->frame_mbs_only_flag; | |
| 455 | |||
| 456 |
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|
2441 | if (!sps->frame_mbs_only_flag) |
| 457 | 521 | sps->mb_aff = get_bits1(gb); | |
| 458 | else | ||
| 459 | 1920 | sps->mb_aff = 0; | |
| 460 | |||
| 461 |
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2441 | if ((unsigned)sps->mb_width >= INT_MAX / 16 || |
| 462 |
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4882 | (unsigned)sps->mb_height >= INT_MAX / 16 || |
| 463 | 2441 | av_image_check_size(16 * sps->mb_width, | |
| 464 | 2441 | 16 * sps->mb_height, 0, avctx)) { | |
| 465 | ✗ | av_log(avctx, AV_LOG_ERROR, "mb_width/height overflow\n"); | |
| 466 | ✗ | goto fail; | |
| 467 | } | ||
| 468 | |||
| 469 | 2441 | sps->direct_8x8_inference_flag = get_bits1(gb); | |
| 470 | |||
| 471 | 2441 | sps->crop = get_bits1(gb); | |
| 472 |
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|
2441 | if (sps->crop) { |
| 473 | 342 | unsigned int crop_left = get_ue_golomb(gb); | |
| 474 | 342 | unsigned int crop_right = get_ue_golomb(gb); | |
| 475 | 342 | unsigned int crop_top = get_ue_golomb(gb); | |
| 476 | 342 | unsigned int crop_bottom = get_ue_golomb(gb); | |
| 477 | 342 | int width = 16 * sps->mb_width; | |
| 478 | 342 | int height = 16 * sps->mb_height; | |
| 479 | |||
| 480 |
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|
342 | if (avctx->flags2 & AV_CODEC_FLAG2_IGNORE_CROP) { |
| 481 | ✗ | av_log(avctx, AV_LOG_DEBUG, "discarding sps cropping, original " | |
| 482 | "values are l:%d r:%d t:%d b:%d\n", | ||
| 483 | crop_left, crop_right, crop_top, crop_bottom); | ||
| 484 | |||
| 485 | ✗ | sps->crop_left = | |
| 486 | ✗ | sps->crop_right = | |
| 487 | ✗ | sps->crop_top = | |
| 488 | ✗ | sps->crop_bottom = 0; | |
| 489 | } else { | ||
| 490 | 342 | int vsub = (sps->chroma_format_idc == 1) ? 1 : 0; | |
| 491 | 684 | int hsub = (sps->chroma_format_idc == 1 || | |
| 492 |
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|
342 | sps->chroma_format_idc == 2) ? 1 : 0; |
| 493 | 342 | int step_x = 1 << hsub; | |
| 494 | 342 | int step_y = (2 - sps->frame_mbs_only_flag) << vsub; | |
| 495 | |||
| 496 |
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342 | if (crop_left > (unsigned)INT_MAX / 4 / step_x || |
| 497 |
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342 | crop_right > (unsigned)INT_MAX / 4 / step_x || |
| 498 |
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342 | crop_top > (unsigned)INT_MAX / 4 / step_y || |
| 499 |
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342 | crop_bottom> (unsigned)INT_MAX / 4 / step_y || |
| 500 |
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342 | (crop_left + crop_right ) * step_x >= width || |
| 501 |
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|
342 | (crop_top + crop_bottom) * step_y >= height |
| 502 | ) { | ||
| 503 | ✗ | av_log(avctx, AV_LOG_ERROR, "crop values invalid %d %d %d %d / %d %d\n", crop_left, crop_right, crop_top, crop_bottom, width, height); | |
| 504 | ✗ | goto fail; | |
| 505 | } | ||
| 506 | |||
| 507 | 342 | sps->crop_left = crop_left * step_x; | |
| 508 | 342 | sps->crop_right = crop_right * step_x; | |
| 509 | 342 | sps->crop_top = crop_top * step_y; | |
| 510 | 342 | sps->crop_bottom = crop_bottom * step_y; | |
| 511 | } | ||
| 512 | } else { | ||
| 513 | 2099 | sps->crop_left = | |
| 514 | 2099 | sps->crop_right = | |
| 515 | 2099 | sps->crop_top = | |
| 516 | 2099 | sps->crop_bottom = | |
| 517 | 2099 | sps->crop = 0; | |
| 518 | } | ||
| 519 | |||
| 520 | 2441 | sps->vui_parameters_present_flag = get_bits1(gb); | |
| 521 |
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|
2441 | if (sps->vui_parameters_present_flag) { |
| 522 | 815 | int ret = decode_vui_parameters(gb, avctx, sps); | |
| 523 |
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815 | if (ret < 0) |
| 524 | ✗ | goto fail; | |
| 525 | } | ||
| 526 | |||
| 527 |
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|
2441 | if (get_bits_left(gb) < 0) { |
| 528 | 10 | av_log_once(avctx, ignore_truncation ? AV_LOG_WARNING : AV_LOG_ERROR, AV_LOG_DEBUG, | |
| 529 |
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5 | &ps->overread_warning_printed[sps->vui_parameters_present_flag], |
| 530 |
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|
5 | "Overread %s by %d bits\n", sps->vui_parameters_present_flag ? "VUI" : "SPS", -get_bits_left(gb)); |
| 531 |
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|
5 | if (!ignore_truncation) |
| 532 | 5 | goto fail; | |
| 533 | } | ||
| 534 | |||
| 535 | /* if the maximum delay is not stored in the SPS, derive it based on the | ||
| 536 | * level */ | ||
| 537 |
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|
2436 | if (!sps->bitstream_restriction_flag && |
| 538 |
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|
1776 | (sps->ref_frame_count || avctx->strict_std_compliance >= FF_COMPLIANCE_STRICT)) { |
| 539 | 1717 | sps->num_reorder_frames = H264_MAX_DPB_FRAMES - 1; | |
| 540 |
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|
9444 | for (i = 0; i < FF_ARRAY_ELEMS(level_max_dpb_mbs); i++) { |
| 541 |
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|
9444 | if (level_max_dpb_mbs[i][0] == sps->level_idc) { |
| 542 | 1717 | sps->num_reorder_frames = FFMIN(level_max_dpb_mbs[i][1] / (sps->mb_width * sps->mb_height), | |
| 543 | sps->num_reorder_frames); | ||
| 544 | 1717 | break; | |
| 545 | } | ||
| 546 | } | ||
| 547 | } | ||
| 548 | |||
| 549 |
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|
2436 | if (!sps->vui.sar.den) |
| 550 | 1626 | sps->vui.sar.den = 1; | |
| 551 | |||
| 552 |
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|
2436 | if (avctx->debug & FF_DEBUG_PICT_INFO) { |
| 553 | static const char csp[4][5] = { "Gray", "420", "422", "444" }; | ||
| 554 | ✗ | av_log(avctx, AV_LOG_DEBUG, | |
| 555 | "sps:%u profile:%d/%d poc:%d ref:%d %dx%d %s %s crop:%u/%u/%u/%u %s %s %"PRId32"/%"PRId32" b%d reo:%d\n", | ||
| 556 | sps_id, sps->profile_idc, sps->level_idc, | ||
| 557 | sps->poc_type, | ||
| 558 | sps->ref_frame_count, | ||
| 559 | sps->mb_width, sps->mb_height, | ||
| 560 | ✗ | sps->frame_mbs_only_flag ? "FRM" : (sps->mb_aff ? "MB-AFF" : "PIC-AFF"), | |
| 561 | ✗ | sps->direct_8x8_inference_flag ? "8B8" : "", | |
| 562 | sps->crop_left, sps->crop_right, | ||
| 563 | sps->crop_top, sps->crop_bottom, | ||
| 564 | ✗ | sps->vui_parameters_present_flag ? "VUI" : "", | |
| 565 | ✗ | csp[sps->chroma_format_idc], | |
| 566 | ✗ | sps->timing_info_present_flag ? sps->num_units_in_tick : 0, | |
| 567 | ✗ | sps->timing_info_present_flag ? sps->time_scale : 0, | |
| 568 | sps->bit_depth_luma, | ||
| 569 | ✗ | sps->bitstream_restriction_flag ? sps->num_reorder_frames : -1 | |
| 570 | ); | ||
| 571 | } | ||
| 572 | |||
| 573 | /* check if this is a repeat of an already parsed SPS, then keep the | ||
| 574 | * original one. | ||
| 575 | * otherwise drop all PPSes that depend on it */ | ||
| 576 |
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|
2436 | if (ps->sps_list[sps_id] && |
| 577 |
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|
1453 | !memcmp(ps->sps_list[sps_id]->data, sps_buf->data, sps_buf->size)) { |
| 578 | 1384 | av_buffer_unref(&sps_buf); | |
| 579 | } else { | ||
| 580 | 1052 | remove_sps(ps, sps_id); | |
| 581 | 1052 | ps->sps_list[sps_id] = sps_buf; | |
| 582 | } | ||
| 583 | |||
| 584 | 2436 | return 0; | |
| 585 | |||
| 586 | 5 | fail: | |
| 587 | 5 | av_buffer_unref(&sps_buf); | |
| 588 | 5 | return AVERROR_INVALIDDATA; | |
| 589 | } | ||
| 590 | |||
| 591 | 705 | static void init_dequant8_coeff_table(PPS *pps, const SPS *sps) | |
| 592 | { | ||
| 593 | int i, j, q, x; | ||
| 594 | 705 | const int max_qp = 51 + 6 * (sps->bit_depth_luma - 8); | |
| 595 | |||
| 596 |
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|
4935 | for (i = 0; i < 6; i++) { |
| 597 | 4230 | pps->dequant8_coeff[i] = pps->dequant8_buffer[i]; | |
| 598 |
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6098 | for (j = 0; j < i; j++) |
| 599 |
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|
4862 | if (!memcmp(pps->scaling_matrix8[j], pps->scaling_matrix8[i], |
| 600 | 64 * sizeof(uint8_t))) { | ||
| 601 | 2994 | pps->dequant8_coeff[i] = pps->dequant8_buffer[j]; | |
| 602 | 2994 | break; | |
| 603 | } | ||
| 604 |
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|
4230 | if (j < i) |
| 605 | 2994 | continue; | |
| 606 | |||
| 607 |
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|
66834 | for (q = 0; q < max_qp + 1; q++) { |
| 608 | 65598 | int shift = ff_h264_quant_div6[q]; | |
| 609 | 65598 | int idx = ff_h264_quant_rem6[q]; | |
| 610 |
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|
4263870 | for (x = 0; x < 64; x++) |
| 611 | 4198272 | pps->dequant8_coeff[i][q][(x >> 3) | ((x & 7) << 3)] = | |
| 612 | 4198272 | ((uint32_t)ff_h264_dequant8_coeff_init[idx][ff_h264_dequant8_coeff_init_scan[((x >> 1) & 12) | (x & 3)]] * | |
| 613 | 4198272 | pps->scaling_matrix8[i][x]) << shift; | |
| 614 | } | ||
| 615 | } | ||
| 616 | 705 | } | |
| 617 | |||
| 618 | 14997 | static void init_dequant4_coeff_table(PPS *pps, const SPS *sps) | |
| 619 | { | ||
| 620 | int i, j, q, x; | ||
| 621 | 14997 | const int max_qp = 51 + 6 * (sps->bit_depth_luma - 8); | |
| 622 |
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|
104979 | for (i = 0; i < 6; i++) { |
| 623 | 89982 | pps->dequant4_coeff[i] = pps->dequant4_buffer[i]; | |
| 624 |
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94168 | for (j = 0; j < i; j++) |
| 625 |
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|
78351 | if (!memcmp(pps->scaling_matrix4[j], pps->scaling_matrix4[i], |
| 626 | 16 * sizeof(uint8_t))) { | ||
| 627 | 74165 | pps->dequant4_coeff[i] = pps->dequant4_buffer[j]; | |
| 628 | 74165 | break; | |
| 629 | } | ||
| 630 |
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|
89982 | if (j < i) |
| 631 | 74165 | continue; | |
| 632 | |||
| 633 |
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|
839993 | for (q = 0; q < max_qp + 1; q++) { |
| 634 | 824176 | int shift = ff_h264_quant_div6[q] + 2; | |
| 635 | 824176 | int idx = ff_h264_quant_rem6[q]; | |
| 636 |
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14010992 | for (x = 0; x < 16; x++) |
| 637 | 13186816 | pps->dequant4_coeff[i][q][(x >> 2) | ((x << 2) & 0xF)] = | |
| 638 | 13186816 | ((uint32_t)ff_h264_dequant4_coeff_init[idx][(x & 1) + ((x >> 2) & 1)] * | |
| 639 | 13186816 | pps->scaling_matrix4[i][x]) << shift; | |
| 640 | } | ||
| 641 | } | ||
| 642 | 14997 | } | |
| 643 | |||
| 644 | 14997 | static void init_dequant_tables(PPS *pps, const SPS *sps) | |
| 645 | { | ||
| 646 | int i, x; | ||
| 647 | 14997 | init_dequant4_coeff_table(pps, sps); | |
| 648 | 14997 | memset(pps->dequant8_coeff, 0, sizeof(pps->dequant8_coeff)); | |
| 649 | |||
| 650 |
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|
14997 | if (pps->transform_8x8_mode) |
| 651 | 705 | init_dequant8_coeff_table(pps, sps); | |
| 652 |
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14997 | if (sps->transform_bypass) { |
| 653 |
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154 | for (i = 0; i < 6; i++) |
| 654 |
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2244 | for (x = 0; x < 16; x++) |
| 655 | 2112 | pps->dequant4_coeff[i][0][x] = 1 << 6; | |
| 656 |
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22 | if (pps->transform_8x8_mode) |
| 657 |
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147 | for (i = 0; i < 6; i++) |
| 658 |
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|
8190 | for (x = 0; x < 64; x++) |
| 659 | 8064 | pps->dequant8_coeff[i][0][x] = 1 << 6; | |
| 660 | } | ||
| 661 | 14997 | } | |
| 662 | |||
| 663 | 29994 | static void build_qp_table(PPS *pps, int t, int index, const int depth) | |
| 664 | { | ||
| 665 | int i; | ||
| 666 | 29994 | const int max_qp = 51 + 6 * (depth - 8); | |
| 667 |
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1592658 | for (i = 0; i < max_qp + 1; i++) |
| 668 | 1562664 | pps->chroma_qp_table[t][i] = | |
| 669 | 1562664 | ff_h264_chroma_qp[depth - 8][av_clip(i + index, 0, max_qp)]; | |
| 670 | 29994 | } | |
| 671 | |||
| 672 | 718 | static int more_rbsp_data_in_pps(const SPS *sps, void *logctx) | |
| 673 | { | ||
| 674 | 718 | int profile_idc = sps->profile_idc; | |
| 675 | |||
| 676 |
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|
718 | if ((profile_idc == 66 || profile_idc == 77 || |
| 677 |
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13 | profile_idc == 88) && (sps->constraint_set_flags & 7)) { |
| 678 | ✗ | av_log(logctx, AV_LOG_VERBOSE, | |
| 679 | "Current profile doesn't provide more RBSP data in PPS, skipping\n"); | ||
| 680 | ✗ | return 0; | |
| 681 | } | ||
| 682 | |||
| 683 | 718 | return 1; | |
| 684 | } | ||
| 685 | |||
| 686 | 15011 | static void pps_free(void *opaque, uint8_t *data) | |
| 687 | { | ||
| 688 | 15011 | PPS *pps = (PPS*)data; | |
| 689 | |||
| 690 | 15011 | av_buffer_unref(&pps->sps_ref); | |
| 691 | |||
| 692 | 15011 | av_freep(&data); | |
| 693 | 15011 | } | |
| 694 | |||
| 695 | 15011 | int ff_h264_decode_picture_parameter_set(GetBitContext *gb, AVCodecContext *avctx, | |
| 696 | H264ParamSets *ps, int bit_length) | ||
| 697 | { | ||
| 698 | AVBufferRef *pps_buf; | ||
| 699 | const SPS *sps; | ||
| 700 | 15011 | unsigned int pps_id = get_ue_golomb(gb); | |
| 701 | PPS *pps; | ||
| 702 | int qp_bd_offset; | ||
| 703 | int bits_left; | ||
| 704 | int ret; | ||
| 705 | |||
| 706 |
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|
15011 | if (pps_id >= MAX_PPS_COUNT) { |
| 707 | ✗ | av_log(avctx, AV_LOG_ERROR, "pps_id %u out of range\n", pps_id); | |
| 708 | ✗ | return AVERROR_INVALIDDATA; | |
| 709 | } | ||
| 710 | |||
| 711 | 15011 | pps = av_mallocz(sizeof(*pps)); | |
| 712 |
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|
15011 | if (!pps) |
| 713 | ✗ | return AVERROR(ENOMEM); | |
| 714 | 15011 | pps_buf = av_buffer_create((uint8_t*)pps, sizeof(*pps), | |
| 715 | pps_free, NULL, 0); | ||
| 716 |
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|
15011 | if (!pps_buf) { |
| 717 | ✗ | av_freep(&pps); | |
| 718 | ✗ | return AVERROR(ENOMEM); | |
| 719 | } | ||
| 720 | |||
| 721 | 15011 | pps->data_size = gb->buffer_end - gb->buffer; | |
| 722 |
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15011 | if (pps->data_size > sizeof(pps->data)) { |
| 723 | ✗ | av_log(avctx, AV_LOG_DEBUG, "Truncating likely oversized PPS " | |
| 724 | "(%"SIZE_SPECIFIER" > %"SIZE_SPECIFIER")\n", | ||
| 725 | ✗ | pps->data_size, sizeof(pps->data)); | |
| 726 | ✗ | pps->data_size = sizeof(pps->data); | |
| 727 | } | ||
| 728 | 15011 | memcpy(pps->data, gb->buffer, pps->data_size); | |
| 729 | |||
| 730 | // Re-add the removed stop bit (may be used by hwaccels). | ||
| 731 |
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15011 | if (!(bit_length & 7) && pps->data_size < sizeof(pps->data)) |
| 732 | 10359 | pps->data[pps->data_size++] = 0x80; | |
| 733 | |||
| 734 | 15011 | pps->sps_id = get_ue_golomb_31(gb); | |
| 735 |
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15011 | if ((unsigned)pps->sps_id >= MAX_SPS_COUNT || |
| 736 |
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|
15011 | !ps->sps_list[pps->sps_id]) { |
| 737 | ✗ | av_log(avctx, AV_LOG_ERROR, "sps_id %u out of range\n", pps->sps_id); | |
| 738 | ✗ | ret = AVERROR_INVALIDDATA; | |
| 739 | ✗ | goto fail; | |
| 740 | } | ||
| 741 | 15011 | pps->sps_ref = av_buffer_ref(ps->sps_list[pps->sps_id]); | |
| 742 |
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|
15011 | if (!pps->sps_ref) { |
| 743 | ✗ | ret = AVERROR(ENOMEM); | |
| 744 | ✗ | goto fail; | |
| 745 | } | ||
| 746 | 15011 | pps->sps = (const SPS*)pps->sps_ref->data; | |
| 747 | 15011 | sps = pps->sps; | |
| 748 | |||
| 749 |
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15011 | if (sps->bit_depth_luma > 14) { |
| 750 | ✗ | av_log(avctx, AV_LOG_ERROR, | |
| 751 | "Invalid luma bit depth=%d\n", | ||
| 752 | ✗ | sps->bit_depth_luma); | |
| 753 | ✗ | ret = AVERROR_INVALIDDATA; | |
| 754 | ✗ | goto fail; | |
| 755 |
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15011 | } else if (sps->bit_depth_luma == 11 || sps->bit_depth_luma == 13) { |
| 756 | ✗ | avpriv_report_missing_feature(avctx, | |
| 757 | "Unimplemented luma bit depth=%d", | ||
| 758 | ✗ | sps->bit_depth_luma); | |
| 759 | ✗ | ret = AVERROR_PATCHWELCOME; | |
| 760 | ✗ | goto fail; | |
| 761 | } | ||
| 762 | |||
| 763 | 15011 | pps->cabac = get_bits1(gb); | |
| 764 | 15011 | pps->pic_order_present = get_bits1(gb); | |
| 765 | 15011 | pps->slice_group_count = get_ue_golomb(gb) + 1; | |
| 766 |
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15011 | if (pps->slice_group_count > 1) { |
| 767 | 14 | pps->mb_slice_group_map_type = get_ue_golomb(gb); | |
| 768 | 14 | avpriv_report_missing_feature(avctx, "FMO"); | |
| 769 | 14 | ret = AVERROR_PATCHWELCOME; | |
| 770 | 14 | goto fail; | |
| 771 | } | ||
| 772 | 14997 | pps->ref_count[0] = get_ue_golomb(gb) + 1; | |
| 773 | 14997 | pps->ref_count[1] = get_ue_golomb(gb) + 1; | |
| 774 |
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14997 | if (pps->ref_count[0] - 1 > 32 - 1 || pps->ref_count[1] - 1 > 32 - 1) { |
| 775 | ✗ | av_log(avctx, AV_LOG_ERROR, "reference overflow (pps)\n"); | |
| 776 | ✗ | ret = AVERROR_INVALIDDATA; | |
| 777 | ✗ | goto fail; | |
| 778 | } | ||
| 779 | |||
| 780 | 14997 | qp_bd_offset = 6 * (sps->bit_depth_luma - 8); | |
| 781 | |||
| 782 | 14997 | pps->weighted_pred = get_bits1(gb); | |
| 783 | 14997 | pps->weighted_bipred_idc = get_bits(gb, 2); | |
| 784 | 14997 | pps->init_qp = get_se_golomb(gb) + 26U + qp_bd_offset; | |
| 785 | 14997 | pps->init_qs = get_se_golomb(gb) + 26U + qp_bd_offset; | |
| 786 | 14997 | pps->chroma_qp_index_offset[0] = get_se_golomb(gb); | |
| 787 |
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14997 | if (pps->chroma_qp_index_offset[0] < -12 || pps->chroma_qp_index_offset[0] > 12) { |
| 788 | ✗ | ret = AVERROR_INVALIDDATA; | |
| 789 | ✗ | goto fail; | |
| 790 | } | ||
| 791 | |||
| 792 | 14997 | pps->deblocking_filter_parameters_present = get_bits1(gb); | |
| 793 | 14997 | pps->constrained_intra_pred = get_bits1(gb); | |
| 794 | 14997 | pps->redundant_pic_cnt_present = get_bits1(gb); | |
| 795 | |||
| 796 | 14997 | pps->transform_8x8_mode = 0; | |
| 797 | 14997 | memcpy(pps->scaling_matrix4, sps->scaling_matrix4, | |
| 798 | sizeof(pps->scaling_matrix4)); | ||
| 799 | 14997 | memcpy(pps->scaling_matrix8, sps->scaling_matrix8, | |
| 800 | sizeof(pps->scaling_matrix8)); | ||
| 801 | |||
| 802 | 14997 | bits_left = bit_length - get_bits_count(gb); | |
| 803 |
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14997 | if (bits_left > 0 && more_rbsp_data_in_pps(sps, avctx)) { |
| 804 | 718 | pps->transform_8x8_mode = get_bits1(gb); | |
| 805 | 718 | ret = decode_scaling_matrices(gb, sps, pps, 0, | |
| 806 | 718 | pps->scaling_matrix4, pps->scaling_matrix8); | |
| 807 |
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718 | if (ret < 0) |
| 808 | ✗ | goto fail; | |
| 809 | // second_chroma_qp_index_offset | ||
| 810 | 718 | pps->chroma_qp_index_offset[1] = get_se_golomb(gb); | |
| 811 |
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|
718 | if (pps->chroma_qp_index_offset[1] < -12 || pps->chroma_qp_index_offset[1] > 12) { |
| 812 | ✗ | ret = AVERROR_INVALIDDATA; | |
| 813 | ✗ | goto fail; | |
| 814 | } | ||
| 815 | } else { | ||
| 816 | 14279 | pps->chroma_qp_index_offset[1] = pps->chroma_qp_index_offset[0]; | |
| 817 | } | ||
| 818 | |||
| 819 | 14997 | build_qp_table(pps, 0, pps->chroma_qp_index_offset[0], | |
| 820 | 14997 | sps->bit_depth_luma); | |
| 821 | 14997 | build_qp_table(pps, 1, pps->chroma_qp_index_offset[1], | |
| 822 | 14997 | sps->bit_depth_luma); | |
| 823 | |||
| 824 | 14997 | init_dequant_tables(pps, sps); | |
| 825 | |||
| 826 |
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|
14997 | if (pps->chroma_qp_index_offset[0] != pps->chroma_qp_index_offset[1]) |
| 827 | 76 | pps->chroma_qp_diff = 1; | |
| 828 | |||
| 829 |
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14997 | if (avctx->debug & FF_DEBUG_PICT_INFO) { |
| 830 | ✗ | av_log(avctx, AV_LOG_DEBUG, | |
| 831 | "pps:%u sps:%u %s slice_groups:%d ref:%u/%u %s qp:%d/%d/%d/%d %s %s %s %s\n", | ||
| 832 | ✗ | pps_id, pps->sps_id, | |
| 833 | ✗ | pps->cabac ? "CABAC" : "CAVLC", | |
| 834 | ✗ | pps->slice_group_count, | |
| 835 | ✗ | pps->ref_count[0], pps->ref_count[1], | |
| 836 | ✗ | pps->weighted_pred ? "weighted" : "", | |
| 837 | ✗ | pps->init_qp, pps->init_qs, pps->chroma_qp_index_offset[0], pps->chroma_qp_index_offset[1], | |
| 838 | ✗ | pps->deblocking_filter_parameters_present ? "LPAR" : "", | |
| 839 | ✗ | pps->constrained_intra_pred ? "CONSTR" : "", | |
| 840 | ✗ | pps->redundant_pic_cnt_present ? "REDU" : "", | |
| 841 | ✗ | pps->transform_8x8_mode ? "8x8DCT" : ""); | |
| 842 | } | ||
| 843 | |||
| 844 | 14997 | remove_pps(ps, pps_id); | |
| 845 | 14997 | ps->pps_list[pps_id] = pps_buf; | |
| 846 | |||
| 847 | 14997 | return 0; | |
| 848 | |||
| 849 | 14 | fail: | |
| 850 | 14 | av_buffer_unref(&pps_buf); | |
| 851 | 14 | return ret; | |
| 852 | } | ||
| 853 |