| /* |
| * HEVC Parameter Set decoding |
| * |
| * Copyright (C) 2012 - 2103 Guillaume Martres |
| * Copyright (C) 2012 - 2103 Mickael Raulet |
| * Copyright (C) 2012 - 2013 Gildas Cocherel |
| * Copyright (C) 2013 Vittorio Giovara |
| * |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * FFmpeg is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include "libavutil/imgutils.h" |
| #include "golomb.h" |
| #include "hevc.h" |
| |
| static const uint8_t default_scaling_list_intra[] = { |
| 16, 16, 16, 16, 17, 18, 21, 24, |
| 16, 16, 16, 16, 17, 19, 22, 25, |
| 16, 16, 17, 18, 20, 22, 25, 29, |
| 16, 16, 18, 21, 24, 27, 31, 36, |
| 17, 17, 20, 24, 30, 35, 41, 47, |
| 18, 19, 22, 27, 35, 44, 54, 65, |
| 21, 22, 25, 31, 41, 54, 70, 88, |
| 24, 25, 29, 36, 47, 65, 88, 115 |
| }; |
| |
| static const uint8_t default_scaling_list_inter[] = { |
| 16, 16, 16, 16, 17, 18, 20, 24, |
| 16, 16, 16, 17, 18, 20, 24, 25, |
| 16, 16, 17, 18, 20, 24, 25, 28, |
| 16, 17, 18, 20, 24, 25, 28, 33, |
| 17, 18, 20, 24, 25, 28, 33, 41, |
| 18, 20, 24, 25, 28, 33, 41, 54, |
| 20, 24, 25, 28, 33, 41, 54, 71, |
| 24, 25, 28, 33, 41, 54, 71, 91 |
| }; |
| |
| static const AVRational vui_sar[] = { |
| { 0, 1 }, |
| { 1, 1 }, |
| { 12, 11 }, |
| { 10, 11 }, |
| { 16, 11 }, |
| { 40, 33 }, |
| { 24, 11 }, |
| { 20, 11 }, |
| { 32, 11 }, |
| { 80, 33 }, |
| { 18, 11 }, |
| { 15, 11 }, |
| { 64, 33 }, |
| { 160, 99 }, |
| { 4, 3 }, |
| { 3, 2 }, |
| { 2, 1 }, |
| }; |
| |
| static void remove_pps(HEVCParamSets *s, int id) |
| { |
| if (s->pps_list[id] && s->pps == (const HEVCPPS*)s->pps_list[id]->data) |
| s->pps = NULL; |
| av_buffer_unref(&s->pps_list[id]); |
| } |
| |
| static void remove_sps(HEVCParamSets *s, int id) |
| { |
| int i; |
| if (s->sps_list[id]) { |
| if (s->sps == (const HEVCSPS*)s->sps_list[id]->data) |
| s->sps = NULL; |
| |
| /* drop all PPS that depend on this SPS */ |
| for (i = 0; i < FF_ARRAY_ELEMS(s->pps_list); i++) |
| if (s->pps_list[i] && ((HEVCPPS*)s->pps_list[i]->data)->sps_id == id) |
| remove_pps(s, i); |
| |
| av_assert0(!(s->sps_list[id] && s->sps == (HEVCSPS*)s->sps_list[id]->data)); |
| } |
| av_buffer_unref(&s->sps_list[id]); |
| } |
| |
| static void remove_vps(HEVCParamSets *s, int id) |
| { |
| int i; |
| if (s->vps_list[id]) { |
| if (s->vps == (const HEVCVPS*)s->vps_list[id]->data) |
| s->vps = NULL; |
| |
| for (i = 0; i < FF_ARRAY_ELEMS(s->sps_list); i++) |
| if (s->sps_list[i] && ((HEVCSPS*)s->sps_list[i]->data)->vps_id == id) |
| remove_sps(s, i); |
| } |
| av_buffer_unref(&s->vps_list[id]); |
| } |
| |
| int ff_hevc_decode_short_term_rps(GetBitContext *gb, AVCodecContext *avctx, |
| ShortTermRPS *rps, const HEVCSPS *sps, int is_slice_header) |
| { |
| uint8_t rps_predict = 0; |
| int delta_poc; |
| int k0 = 0; |
| int k1 = 0; |
| int k = 0; |
| int i; |
| |
| if (rps != sps->st_rps && sps->nb_st_rps) |
| rps_predict = get_bits1(gb); |
| |
| if (rps_predict) { |
| const ShortTermRPS *rps_ridx; |
| int delta_rps; |
| unsigned abs_delta_rps; |
| uint8_t use_delta_flag = 0; |
| uint8_t delta_rps_sign; |
| |
| if (is_slice_header) { |
| unsigned int delta_idx = get_ue_golomb_long(gb) + 1; |
| if (delta_idx > sps->nb_st_rps) { |
| av_log(avctx, AV_LOG_ERROR, |
| "Invalid value of delta_idx in slice header RPS: %d > %d.\n", |
| delta_idx, sps->nb_st_rps); |
| return AVERROR_INVALIDDATA; |
| } |
| rps_ridx = &sps->st_rps[sps->nb_st_rps - delta_idx]; |
| rps->rps_idx_num_delta_pocs = rps_ridx->num_delta_pocs; |
| } else |
| rps_ridx = &sps->st_rps[rps - sps->st_rps - 1]; |
| |
| delta_rps_sign = get_bits1(gb); |
| abs_delta_rps = get_ue_golomb_long(gb) + 1; |
| if (abs_delta_rps < 1 || abs_delta_rps > 32768) { |
| av_log(avctx, AV_LOG_ERROR, |
| "Invalid value of abs_delta_rps: %d\n", |
| abs_delta_rps); |
| return AVERROR_INVALIDDATA; |
| } |
| delta_rps = (1 - (delta_rps_sign << 1)) * abs_delta_rps; |
| for (i = 0; i <= rps_ridx->num_delta_pocs; i++) { |
| int used = rps->used[k] = get_bits1(gb); |
| |
| if (!used) |
| use_delta_flag = get_bits1(gb); |
| |
| if (used || use_delta_flag) { |
| if (i < rps_ridx->num_delta_pocs) |
| delta_poc = delta_rps + rps_ridx->delta_poc[i]; |
| else |
| delta_poc = delta_rps; |
| rps->delta_poc[k] = delta_poc; |
| if (delta_poc < 0) |
| k0++; |
| else |
| k1++; |
| k++; |
| } |
| } |
| |
| rps->num_delta_pocs = k; |
| rps->num_negative_pics = k0; |
| // sort in increasing order (smallest first) |
| if (rps->num_delta_pocs != 0) { |
| int used, tmp; |
| for (i = 1; i < rps->num_delta_pocs; i++) { |
| delta_poc = rps->delta_poc[i]; |
| used = rps->used[i]; |
| for (k = i - 1; k >= 0; k--) { |
| tmp = rps->delta_poc[k]; |
| if (delta_poc < tmp) { |
| rps->delta_poc[k + 1] = tmp; |
| rps->used[k + 1] = rps->used[k]; |
| rps->delta_poc[k] = delta_poc; |
| rps->used[k] = used; |
| } |
| } |
| } |
| } |
| if ((rps->num_negative_pics >> 1) != 0) { |
| int used; |
| k = rps->num_negative_pics - 1; |
| // flip the negative values to largest first |
| for (i = 0; i < rps->num_negative_pics >> 1; i++) { |
| delta_poc = rps->delta_poc[i]; |
| used = rps->used[i]; |
| rps->delta_poc[i] = rps->delta_poc[k]; |
| rps->used[i] = rps->used[k]; |
| rps->delta_poc[k] = delta_poc; |
| rps->used[k] = used; |
| k--; |
| } |
| } |
| } else { |
| unsigned int prev, nb_positive_pics; |
| rps->num_negative_pics = get_ue_golomb_long(gb); |
| nb_positive_pics = get_ue_golomb_long(gb); |
| |
| if (rps->num_negative_pics >= MAX_REFS || |
| nb_positive_pics >= MAX_REFS) { |
| av_log(avctx, AV_LOG_ERROR, "Too many refs in a short term RPS.\n"); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| rps->num_delta_pocs = rps->num_negative_pics + nb_positive_pics; |
| if (rps->num_delta_pocs) { |
| prev = 0; |
| for (i = 0; i < rps->num_negative_pics; i++) { |
| delta_poc = get_ue_golomb_long(gb) + 1; |
| prev -= delta_poc; |
| rps->delta_poc[i] = prev; |
| rps->used[i] = get_bits1(gb); |
| } |
| prev = 0; |
| for (i = 0; i < nb_positive_pics; i++) { |
| delta_poc = get_ue_golomb_long(gb) + 1; |
| prev += delta_poc; |
| rps->delta_poc[rps->num_negative_pics + i] = prev; |
| rps->used[rps->num_negative_pics + i] = get_bits1(gb); |
| } |
| } |
| } |
| return 0; |
| } |
| |
| |
| static int decode_profile_tier_level(GetBitContext *gb, AVCodecContext *avctx, |
| PTLCommon *ptl) |
| { |
| int i; |
| |
| if (get_bits_left(gb) < 2+1+5 + 32 + 4 + 16 + 16 + 12) |
| return -1; |
| |
| ptl->profile_space = get_bits(gb, 2); |
| ptl->tier_flag = get_bits1(gb); |
| ptl->profile_idc = get_bits(gb, 5); |
| if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN) |
| av_log(avctx, AV_LOG_DEBUG, "Main profile bitstream\n"); |
| else if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN_10) |
| av_log(avctx, AV_LOG_DEBUG, "Main 10 profile bitstream\n"); |
| else if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN_STILL_PICTURE) |
| av_log(avctx, AV_LOG_DEBUG, "Main Still Picture profile bitstream\n"); |
| else if (ptl->profile_idc == FF_PROFILE_HEVC_REXT) |
| av_log(avctx, AV_LOG_DEBUG, "Range Extension profile bitstream\n"); |
| else |
| av_log(avctx, AV_LOG_WARNING, "Unknown HEVC profile: %d\n", ptl->profile_idc); |
| |
| for (i = 0; i < 32; i++) { |
| ptl->profile_compatibility_flag[i] = get_bits1(gb); |
| |
| if (ptl->profile_idc == 0 && i > 0 && ptl->profile_compatibility_flag[i]) |
| ptl->profile_idc = i; |
| } |
| ptl->progressive_source_flag = get_bits1(gb); |
| ptl->interlaced_source_flag = get_bits1(gb); |
| ptl->non_packed_constraint_flag = get_bits1(gb); |
| ptl->frame_only_constraint_flag = get_bits1(gb); |
| |
| skip_bits(gb, 16); // XXX_reserved_zero_44bits[0..15] |
| skip_bits(gb, 16); // XXX_reserved_zero_44bits[16..31] |
| skip_bits(gb, 12); // XXX_reserved_zero_44bits[32..43] |
| |
| return 0; |
| } |
| |
| static int parse_ptl(GetBitContext *gb, AVCodecContext *avctx, |
| PTL *ptl, int max_num_sub_layers) |
| { |
| int i; |
| if (decode_profile_tier_level(gb, avctx, &ptl->general_ptl) < 0 || |
| get_bits_left(gb) < 8 + 8*2) { |
| av_log(avctx, AV_LOG_ERROR, "PTL information too short\n"); |
| return -1; |
| } |
| |
| ptl->general_ptl.level_idc = get_bits(gb, 8); |
| |
| for (i = 0; i < max_num_sub_layers - 1; i++) { |
| ptl->sub_layer_profile_present_flag[i] = get_bits1(gb); |
| ptl->sub_layer_level_present_flag[i] = get_bits1(gb); |
| } |
| |
| if (max_num_sub_layers - 1> 0) |
| for (i = max_num_sub_layers - 1; i < 8; i++) |
| skip_bits(gb, 2); // reserved_zero_2bits[i] |
| for (i = 0; i < max_num_sub_layers - 1; i++) { |
| if (ptl->sub_layer_profile_present_flag[i] && |
| decode_profile_tier_level(gb, avctx, &ptl->sub_layer_ptl[i]) < 0) { |
| av_log(avctx, AV_LOG_ERROR, |
| "PTL information for sublayer %i too short\n", i); |
| return -1; |
| } |
| if (ptl->sub_layer_level_present_flag[i]) { |
| if (get_bits_left(gb) < 8) { |
| av_log(avctx, AV_LOG_ERROR, |
| "Not enough data for sublayer %i level_idc\n", i); |
| return -1; |
| } else |
| ptl->sub_layer_ptl[i].level_idc = get_bits(gb, 8); |
| } |
| } |
| |
| return 0; |
| } |
| |
| static void decode_sublayer_hrd(GetBitContext *gb, unsigned int nb_cpb, |
| int subpic_params_present) |
| { |
| int i; |
| |
| for (i = 0; i < nb_cpb; i++) { |
| get_ue_golomb_long(gb); // bit_rate_value_minus1 |
| get_ue_golomb_long(gb); // cpb_size_value_minus1 |
| |
| if (subpic_params_present) { |
| get_ue_golomb_long(gb); // cpb_size_du_value_minus1 |
| get_ue_golomb_long(gb); // bit_rate_du_value_minus1 |
| } |
| skip_bits1(gb); // cbr_flag |
| } |
| } |
| |
| static int decode_hrd(GetBitContext *gb, int common_inf_present, |
| int max_sublayers) |
| { |
| int nal_params_present = 0, vcl_params_present = 0; |
| int subpic_params_present = 0; |
| int i; |
| |
| if (common_inf_present) { |
| nal_params_present = get_bits1(gb); |
| vcl_params_present = get_bits1(gb); |
| |
| if (nal_params_present || vcl_params_present) { |
| subpic_params_present = get_bits1(gb); |
| |
| if (subpic_params_present) { |
| skip_bits(gb, 8); // tick_divisor_minus2 |
| skip_bits(gb, 5); // du_cpb_removal_delay_increment_length_minus1 |
| skip_bits(gb, 1); // sub_pic_cpb_params_in_pic_timing_sei_flag |
| skip_bits(gb, 5); // dpb_output_delay_du_length_minus1 |
| } |
| |
| skip_bits(gb, 4); // bit_rate_scale |
| skip_bits(gb, 4); // cpb_size_scale |
| |
| if (subpic_params_present) |
| skip_bits(gb, 4); // cpb_size_du_scale |
| |
| skip_bits(gb, 5); // initial_cpb_removal_delay_length_minus1 |
| skip_bits(gb, 5); // au_cpb_removal_delay_length_minus1 |
| skip_bits(gb, 5); // dpb_output_delay_length_minus1 |
| } |
| } |
| |
| for (i = 0; i < max_sublayers; i++) { |
| int low_delay = 0; |
| unsigned int nb_cpb = 1; |
| int fixed_rate = get_bits1(gb); |
| |
| if (!fixed_rate) |
| fixed_rate = get_bits1(gb); |
| |
| if (fixed_rate) |
| get_ue_golomb_long(gb); // elemental_duration_in_tc_minus1 |
| else |
| low_delay = get_bits1(gb); |
| |
| if (!low_delay) { |
| nb_cpb = get_ue_golomb_long(gb) + 1; |
| if (nb_cpb < 1 || nb_cpb > 32) { |
| av_log(NULL, AV_LOG_ERROR, "nb_cpb %d invalid\n", nb_cpb); |
| return AVERROR_INVALIDDATA; |
| } |
| } |
| |
| if (nal_params_present) |
| decode_sublayer_hrd(gb, nb_cpb, subpic_params_present); |
| if (vcl_params_present) |
| decode_sublayer_hrd(gb, nb_cpb, subpic_params_present); |
| } |
| return 0; |
| } |
| |
| int ff_hevc_decode_nal_vps(GetBitContext *gb, AVCodecContext *avctx, |
| HEVCParamSets *ps) |
| { |
| int i,j; |
| int vps_id = 0; |
| HEVCVPS *vps; |
| AVBufferRef *vps_buf = av_buffer_allocz(sizeof(*vps)); |
| |
| if (!vps_buf) |
| return AVERROR(ENOMEM); |
| vps = (HEVCVPS*)vps_buf->data; |
| |
| av_log(avctx, AV_LOG_DEBUG, "Decoding VPS\n"); |
| |
| vps_id = get_bits(gb, 4); |
| if (vps_id >= MAX_VPS_COUNT) { |
| av_log(avctx, AV_LOG_ERROR, "VPS id out of range: %d\n", vps_id); |
| goto err; |
| } |
| |
| if (get_bits(gb, 2) != 3) { // vps_reserved_three_2bits |
| av_log(avctx, AV_LOG_ERROR, "vps_reserved_three_2bits is not three\n"); |
| goto err; |
| } |
| |
| vps->vps_max_layers = get_bits(gb, 6) + 1; |
| vps->vps_max_sub_layers = get_bits(gb, 3) + 1; |
| vps->vps_temporal_id_nesting_flag = get_bits1(gb); |
| |
| if (get_bits(gb, 16) != 0xffff) { // vps_reserved_ffff_16bits |
| av_log(avctx, AV_LOG_ERROR, "vps_reserved_ffff_16bits is not 0xffff\n"); |
| goto err; |
| } |
| |
| if (vps->vps_max_sub_layers > MAX_SUB_LAYERS) { |
| av_log(avctx, AV_LOG_ERROR, "vps_max_sub_layers out of range: %d\n", |
| vps->vps_max_sub_layers); |
| goto err; |
| } |
| |
| if (parse_ptl(gb, avctx, &vps->ptl, vps->vps_max_sub_layers) < 0) |
| goto err; |
| |
| vps->vps_sub_layer_ordering_info_present_flag = get_bits1(gb); |
| |
| i = vps->vps_sub_layer_ordering_info_present_flag ? 0 : vps->vps_max_sub_layers - 1; |
| for (; i < vps->vps_max_sub_layers; i++) { |
| vps->vps_max_dec_pic_buffering[i] = get_ue_golomb_long(gb) + 1; |
| vps->vps_num_reorder_pics[i] = get_ue_golomb_long(gb); |
| vps->vps_max_latency_increase[i] = get_ue_golomb_long(gb) - 1; |
| |
| if (vps->vps_max_dec_pic_buffering[i] > MAX_DPB_SIZE || !vps->vps_max_dec_pic_buffering[i]) { |
| av_log(avctx, AV_LOG_ERROR, "vps_max_dec_pic_buffering_minus1 out of range: %d\n", |
| vps->vps_max_dec_pic_buffering[i] - 1); |
| goto err; |
| } |
| if (vps->vps_num_reorder_pics[i] > vps->vps_max_dec_pic_buffering[i] - 1) { |
| av_log(avctx, AV_LOG_WARNING, "vps_max_num_reorder_pics out of range: %d\n", |
| vps->vps_num_reorder_pics[i]); |
| if (avctx->err_recognition & AV_EF_EXPLODE) |
| goto err; |
| } |
| } |
| |
| vps->vps_max_layer_id = get_bits(gb, 6); |
| vps->vps_num_layer_sets = get_ue_golomb_long(gb) + 1; |
| if (vps->vps_num_layer_sets < 1 || vps->vps_num_layer_sets > 1024 || |
| (vps->vps_num_layer_sets - 1LL) * (vps->vps_max_layer_id + 1LL) > get_bits_left(gb)) { |
| av_log(avctx, AV_LOG_ERROR, "too many layer_id_included_flags\n"); |
| goto err; |
| } |
| |
| for (i = 1; i < vps->vps_num_layer_sets; i++) |
| for (j = 0; j <= vps->vps_max_layer_id; j++) |
| skip_bits(gb, 1); // layer_id_included_flag[i][j] |
| |
| vps->vps_timing_info_present_flag = get_bits1(gb); |
| if (vps->vps_timing_info_present_flag) { |
| vps->vps_num_units_in_tick = get_bits_long(gb, 32); |
| vps->vps_time_scale = get_bits_long(gb, 32); |
| vps->vps_poc_proportional_to_timing_flag = get_bits1(gb); |
| if (vps->vps_poc_proportional_to_timing_flag) |
| vps->vps_num_ticks_poc_diff_one = get_ue_golomb_long(gb) + 1; |
| vps->vps_num_hrd_parameters = get_ue_golomb_long(gb); |
| if (vps->vps_num_hrd_parameters > (unsigned)vps->vps_num_layer_sets) { |
| av_log(avctx, AV_LOG_ERROR, |
| "vps_num_hrd_parameters %d is invalid\n", vps->vps_num_hrd_parameters); |
| goto err; |
| } |
| for (i = 0; i < vps->vps_num_hrd_parameters; i++) { |
| int common_inf_present = 1; |
| |
| get_ue_golomb_long(gb); // hrd_layer_set_idx |
| if (i) |
| common_inf_present = get_bits1(gb); |
| decode_hrd(gb, common_inf_present, vps->vps_max_sub_layers); |
| } |
| } |
| get_bits1(gb); /* vps_extension_flag */ |
| |
| if (get_bits_left(gb) < 0) { |
| av_log(avctx, AV_LOG_ERROR, |
| "Overread VPS by %d bits\n", -get_bits_left(gb)); |
| if (ps->vps_list[vps_id]) |
| goto err; |
| } |
| |
| if (ps->vps_list[vps_id] && |
| !memcmp(ps->vps_list[vps_id]->data, vps_buf->data, vps_buf->size)) { |
| av_buffer_unref(&vps_buf); |
| } else { |
| remove_vps(ps, vps_id); |
| ps->vps_list[vps_id] = vps_buf; |
| } |
| |
| return 0; |
| |
| err: |
| av_buffer_unref(&vps_buf); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| static void decode_vui(GetBitContext *gb, AVCodecContext *avctx, |
| int apply_defdispwin, HEVCSPS *sps) |
| { |
| VUI *vui = &sps->vui; |
| GetBitContext backup; |
| int sar_present, alt = 0; |
| |
| av_log(avctx, AV_LOG_DEBUG, "Decoding VUI\n"); |
| |
| sar_present = get_bits1(gb); |
| if (sar_present) { |
| uint8_t sar_idx = get_bits(gb, 8); |
| if (sar_idx < FF_ARRAY_ELEMS(vui_sar)) |
| vui->sar = vui_sar[sar_idx]; |
| else if (sar_idx == 255) { |
| vui->sar.num = get_bits(gb, 16); |
| vui->sar.den = get_bits(gb, 16); |
| } else |
| av_log(avctx, AV_LOG_WARNING, |
| "Unknown SAR index: %u.\n", sar_idx); |
| } |
| |
| vui->overscan_info_present_flag = get_bits1(gb); |
| if (vui->overscan_info_present_flag) |
| vui->overscan_appropriate_flag = get_bits1(gb); |
| |
| vui->video_signal_type_present_flag = get_bits1(gb); |
| if (vui->video_signal_type_present_flag) { |
| vui->video_format = get_bits(gb, 3); |
| vui->video_full_range_flag = get_bits1(gb); |
| vui->colour_description_present_flag = get_bits1(gb); |
| if (vui->video_full_range_flag && sps->pix_fmt == AV_PIX_FMT_YUV420P) |
| sps->pix_fmt = AV_PIX_FMT_YUVJ420P; |
| if (vui->colour_description_present_flag) { |
| vui->colour_primaries = get_bits(gb, 8); |
| vui->transfer_characteristic = get_bits(gb, 8); |
| vui->matrix_coeffs = get_bits(gb, 8); |
| |
| // Set invalid values to "unspecified" |
| if (vui->colour_primaries >= AVCOL_PRI_NB) |
| vui->colour_primaries = AVCOL_PRI_UNSPECIFIED; |
| if (vui->transfer_characteristic >= AVCOL_TRC_NB) |
| vui->transfer_characteristic = AVCOL_TRC_UNSPECIFIED; |
| if (vui->matrix_coeffs >= AVCOL_SPC_NB) |
| vui->matrix_coeffs = AVCOL_SPC_UNSPECIFIED; |
| } |
| } |
| |
| vui->chroma_loc_info_present_flag = get_bits1(gb); |
| if (vui->chroma_loc_info_present_flag) { |
| vui->chroma_sample_loc_type_top_field = get_ue_golomb_long(gb); |
| vui->chroma_sample_loc_type_bottom_field = get_ue_golomb_long(gb); |
| } |
| |
| vui->neutra_chroma_indication_flag = get_bits1(gb); |
| vui->field_seq_flag = get_bits1(gb); |
| vui->frame_field_info_present_flag = get_bits1(gb); |
| |
| if (get_bits_left(gb) >= 68 && show_bits_long(gb, 21) == 0x100000) { |
| vui->default_display_window_flag = 0; |
| av_log(avctx, AV_LOG_WARNING, "Invalid default display window\n"); |
| } else |
| vui->default_display_window_flag = get_bits1(gb); |
| // Backup context in case an alternate header is detected |
| memcpy(&backup, gb, sizeof(backup)); |
| |
| if (vui->default_display_window_flag) { |
| //TODO: * 2 is only valid for 420 |
| vui->def_disp_win.left_offset = get_ue_golomb_long(gb) * 2; |
| vui->def_disp_win.right_offset = get_ue_golomb_long(gb) * 2; |
| vui->def_disp_win.top_offset = get_ue_golomb_long(gb) * 2; |
| vui->def_disp_win.bottom_offset = get_ue_golomb_long(gb) * 2; |
| |
| if (apply_defdispwin && |
| avctx->flags2 & AV_CODEC_FLAG2_IGNORE_CROP) { |
| av_log(avctx, AV_LOG_DEBUG, |
| "discarding vui default display window, " |
| "original values are l:%u r:%u t:%u b:%u\n", |
| vui->def_disp_win.left_offset, |
| vui->def_disp_win.right_offset, |
| vui->def_disp_win.top_offset, |
| vui->def_disp_win.bottom_offset); |
| |
| vui->def_disp_win.left_offset = |
| vui->def_disp_win.right_offset = |
| vui->def_disp_win.top_offset = |
| vui->def_disp_win.bottom_offset = 0; |
| } |
| } |
| |
| vui->vui_timing_info_present_flag = get_bits1(gb); |
| |
| if (vui->vui_timing_info_present_flag) { |
| if( get_bits_left(gb) < 66) { |
| // The alternate syntax seem to have timing info located |
| // at where def_disp_win is normally located |
| av_log(avctx, AV_LOG_WARNING, |
| "Strange VUI timing information, retrying...\n"); |
| vui->default_display_window_flag = 0; |
| memset(&vui->def_disp_win, 0, sizeof(vui->def_disp_win)); |
| memcpy(gb, &backup, sizeof(backup)); |
| alt = 1; |
| } |
| vui->vui_num_units_in_tick = get_bits_long(gb, 32); |
| vui->vui_time_scale = get_bits_long(gb, 32); |
| if (alt) { |
| av_log(avctx, AV_LOG_INFO, "Retry got %i/%i fps\n", |
| vui->vui_time_scale, vui->vui_num_units_in_tick); |
| } |
| vui->vui_poc_proportional_to_timing_flag = get_bits1(gb); |
| if (vui->vui_poc_proportional_to_timing_flag) |
| vui->vui_num_ticks_poc_diff_one_minus1 = get_ue_golomb_long(gb); |
| vui->vui_hrd_parameters_present_flag = get_bits1(gb); |
| if (vui->vui_hrd_parameters_present_flag) |
| decode_hrd(gb, 1, sps->max_sub_layers); |
| } |
| |
| vui->bitstream_restriction_flag = get_bits1(gb); |
| if (vui->bitstream_restriction_flag) { |
| vui->tiles_fixed_structure_flag = get_bits1(gb); |
| vui->motion_vectors_over_pic_boundaries_flag = get_bits1(gb); |
| vui->restricted_ref_pic_lists_flag = get_bits1(gb); |
| vui->min_spatial_segmentation_idc = get_ue_golomb_long(gb); |
| vui->max_bytes_per_pic_denom = get_ue_golomb_long(gb); |
| vui->max_bits_per_min_cu_denom = get_ue_golomb_long(gb); |
| vui->log2_max_mv_length_horizontal = get_ue_golomb_long(gb); |
| vui->log2_max_mv_length_vertical = get_ue_golomb_long(gb); |
| } |
| } |
| |
| static void set_default_scaling_list_data(ScalingList *sl) |
| { |
| int matrixId; |
| |
| for (matrixId = 0; matrixId < 6; matrixId++) { |
| // 4x4 default is 16 |
| memset(sl->sl[0][matrixId], 16, 16); |
| sl->sl_dc[0][matrixId] = 16; // default for 16x16 |
| sl->sl_dc[1][matrixId] = 16; // default for 32x32 |
| } |
| memcpy(sl->sl[1][0], default_scaling_list_intra, 64); |
| memcpy(sl->sl[1][1], default_scaling_list_intra, 64); |
| memcpy(sl->sl[1][2], default_scaling_list_intra, 64); |
| memcpy(sl->sl[1][3], default_scaling_list_inter, 64); |
| memcpy(sl->sl[1][4], default_scaling_list_inter, 64); |
| memcpy(sl->sl[1][5], default_scaling_list_inter, 64); |
| memcpy(sl->sl[2][0], default_scaling_list_intra, 64); |
| memcpy(sl->sl[2][1], default_scaling_list_intra, 64); |
| memcpy(sl->sl[2][2], default_scaling_list_intra, 64); |
| memcpy(sl->sl[2][3], default_scaling_list_inter, 64); |
| memcpy(sl->sl[2][4], default_scaling_list_inter, 64); |
| memcpy(sl->sl[2][5], default_scaling_list_inter, 64); |
| memcpy(sl->sl[3][0], default_scaling_list_intra, 64); |
| memcpy(sl->sl[3][1], default_scaling_list_intra, 64); |
| memcpy(sl->sl[3][2], default_scaling_list_intra, 64); |
| memcpy(sl->sl[3][3], default_scaling_list_inter, 64); |
| memcpy(sl->sl[3][4], default_scaling_list_inter, 64); |
| memcpy(sl->sl[3][5], default_scaling_list_inter, 64); |
| } |
| |
| static int scaling_list_data(GetBitContext *gb, AVCodecContext *avctx, ScalingList *sl, HEVCSPS *sps) |
| { |
| uint8_t scaling_list_pred_mode_flag; |
| int32_t scaling_list_dc_coef[2][6]; |
| int size_id, matrix_id, pos; |
| int i; |
| |
| for (size_id = 0; size_id < 4; size_id++) |
| for (matrix_id = 0; matrix_id < 6; matrix_id += ((size_id == 3) ? 3 : 1)) { |
| scaling_list_pred_mode_flag = get_bits1(gb); |
| if (!scaling_list_pred_mode_flag) { |
| unsigned int delta = get_ue_golomb_long(gb); |
| /* Only need to handle non-zero delta. Zero means default, |
| * which should already be in the arrays. */ |
| if (delta) { |
| // Copy from previous array. |
| if (matrix_id < delta) { |
| av_log(avctx, AV_LOG_ERROR, |
| "Invalid delta in scaling list data: %d.\n", delta); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| memcpy(sl->sl[size_id][matrix_id], |
| sl->sl[size_id][matrix_id - delta], |
| size_id > 0 ? 64 : 16); |
| if (size_id > 1) |
| sl->sl_dc[size_id - 2][matrix_id] = sl->sl_dc[size_id - 2][matrix_id - delta]; |
| } |
| } else { |
| int next_coef, coef_num; |
| int32_t scaling_list_delta_coef; |
| |
| next_coef = 8; |
| coef_num = FFMIN(64, 1 << (4 + (size_id << 1))); |
| if (size_id > 1) { |
| scaling_list_dc_coef[size_id - 2][matrix_id] = get_se_golomb(gb) + 8; |
| next_coef = scaling_list_dc_coef[size_id - 2][matrix_id]; |
| sl->sl_dc[size_id - 2][matrix_id] = next_coef; |
| } |
| for (i = 0; i < coef_num; i++) { |
| if (size_id == 0) |
| pos = 4 * ff_hevc_diag_scan4x4_y[i] + |
| ff_hevc_diag_scan4x4_x[i]; |
| else |
| pos = 8 * ff_hevc_diag_scan8x8_y[i] + |
| ff_hevc_diag_scan8x8_x[i]; |
| |
| scaling_list_delta_coef = get_se_golomb(gb); |
| next_coef = (next_coef + scaling_list_delta_coef + 256) % 256; |
| sl->sl[size_id][matrix_id][pos] = next_coef; |
| } |
| } |
| } |
| |
| if (sps->chroma_format_idc == 3) { |
| for (i = 0; i < 64; i++) { |
| sl->sl[3][1][i] = sl->sl[2][1][i]; |
| sl->sl[3][2][i] = sl->sl[2][2][i]; |
| sl->sl[3][4][i] = sl->sl[2][4][i]; |
| sl->sl[3][5][i] = sl->sl[2][5][i]; |
| } |
| sl->sl_dc[1][1] = sl->sl_dc[0][1]; |
| sl->sl_dc[1][2] = sl->sl_dc[0][2]; |
| sl->sl_dc[1][4] = sl->sl_dc[0][4]; |
| sl->sl_dc[1][5] = sl->sl_dc[0][5]; |
| } |
| |
| |
| return 0; |
| } |
| |
| static int map_pixel_format(AVCodecContext *avctx, HEVCSPS *sps) |
| { |
| const AVPixFmtDescriptor *desc; |
| switch (sps->bit_depth) { |
| case 8: |
| if (sps->chroma_format_idc == 0) sps->pix_fmt = AV_PIX_FMT_GRAY8; |
| if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P; |
| if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P; |
| if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P; |
| break; |
| case 9: |
| if (sps->chroma_format_idc == 0) sps->pix_fmt = AV_PIX_FMT_GRAY16; |
| if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P9; |
| if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P9; |
| if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P9; |
| break; |
| case 10: |
| if (sps->chroma_format_idc == 0) sps->pix_fmt = AV_PIX_FMT_GRAY16; |
| if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P10; |
| if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P10; |
| if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P10; |
| break; |
| case 12: |
| if (sps->chroma_format_idc == 0) sps->pix_fmt = AV_PIX_FMT_GRAY16; |
| if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P12; |
| if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P12; |
| if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P12; |
| break; |
| default: |
| av_log(avctx, AV_LOG_ERROR, |
| "4:2:0, 4:2:2, 4:4:4 supports are currently specified for 8, 10 and 12 bits.\n"); |
| av_log(avctx, AV_LOG_ERROR, |
| "chroma_format_idc is %d, depth is %d", |
| sps->chroma_format_idc, sps->bit_depth); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| desc = av_pix_fmt_desc_get(sps->pix_fmt); |
| if (!desc) |
| return AVERROR(EINVAL); |
| |
| sps->hshift[0] = sps->vshift[0] = 0; |
| sps->hshift[2] = sps->hshift[1] = desc->log2_chroma_w; |
| sps->vshift[2] = sps->vshift[1] = desc->log2_chroma_h; |
| |
| sps->pixel_shift = sps->bit_depth > 8; |
| |
| return 0; |
| } |
| |
| int ff_hevc_parse_sps(HEVCSPS *sps, GetBitContext *gb, unsigned int *sps_id, |
| int apply_defdispwin, AVBufferRef **vps_list, AVCodecContext *avctx) |
| { |
| int ret = 0; |
| int log2_diff_max_min_transform_block_size; |
| int bit_depth_chroma, start, vui_present, sublayer_ordering_info; |
| int i; |
| |
| // Coded parameters |
| |
| sps->vps_id = get_bits(gb, 4); |
| if (sps->vps_id >= MAX_VPS_COUNT) { |
| av_log(avctx, AV_LOG_ERROR, "VPS id out of range: %d\n", sps->vps_id); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| if (vps_list && !vps_list[sps->vps_id]) { |
| av_log(avctx, AV_LOG_ERROR, "VPS %d does not exist\n", |
| sps->vps_id); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| sps->max_sub_layers = get_bits(gb, 3) + 1; |
| if (sps->max_sub_layers > MAX_SUB_LAYERS) { |
| av_log(avctx, AV_LOG_ERROR, "sps_max_sub_layers out of range: %d\n", |
| sps->max_sub_layers); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| skip_bits1(gb); // temporal_id_nesting_flag |
| |
| if ((ret = parse_ptl(gb, avctx, &sps->ptl, sps->max_sub_layers)) < 0) |
| return ret; |
| |
| *sps_id = get_ue_golomb_long(gb); |
| if (*sps_id >= MAX_SPS_COUNT) { |
| av_log(avctx, AV_LOG_ERROR, "SPS id out of range: %d\n", *sps_id); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| sps->chroma_format_idc = get_ue_golomb_long(gb); |
| if (sps->chroma_format_idc > 3U) { |
| av_log(avctx, AV_LOG_ERROR, "chroma_format_idc %d is invalid\n", sps->chroma_format_idc); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| if (sps->chroma_format_idc == 3) |
| sps->separate_colour_plane_flag = get_bits1(gb); |
| |
| if (sps->separate_colour_plane_flag) |
| sps->chroma_format_idc = 0; |
| |
| sps->width = get_ue_golomb_long(gb); |
| sps->height = get_ue_golomb_long(gb); |
| if ((ret = av_image_check_size(sps->width, |
| sps->height, 0, avctx)) < 0) |
| return ret; |
| |
| if (get_bits1(gb)) { // pic_conformance_flag |
| //TODO: * 2 is only valid for 420 |
| sps->pic_conf_win.left_offset = get_ue_golomb_long(gb) * 2; |
| sps->pic_conf_win.right_offset = get_ue_golomb_long(gb) * 2; |
| sps->pic_conf_win.top_offset = get_ue_golomb_long(gb) * 2; |
| sps->pic_conf_win.bottom_offset = get_ue_golomb_long(gb) * 2; |
| |
| if (avctx->flags2 & AV_CODEC_FLAG2_IGNORE_CROP) { |
| av_log(avctx, AV_LOG_DEBUG, |
| "discarding sps conformance window, " |
| "original values are l:%u r:%u t:%u b:%u\n", |
| sps->pic_conf_win.left_offset, |
| sps->pic_conf_win.right_offset, |
| sps->pic_conf_win.top_offset, |
| sps->pic_conf_win.bottom_offset); |
| |
| sps->pic_conf_win.left_offset = |
| sps->pic_conf_win.right_offset = |
| sps->pic_conf_win.top_offset = |
| sps->pic_conf_win.bottom_offset = 0; |
| } |
| sps->output_window = sps->pic_conf_win; |
| } |
| |
| sps->bit_depth = get_ue_golomb_long(gb) + 8; |
| bit_depth_chroma = get_ue_golomb_long(gb) + 8; |
| if (sps->chroma_format_idc && bit_depth_chroma != sps->bit_depth) { |
| av_log(avctx, AV_LOG_ERROR, |
| "Luma bit depth (%d) is different from chroma bit depth (%d), " |
| "this is unsupported.\n", |
| sps->bit_depth, bit_depth_chroma); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| ret = map_pixel_format(avctx, sps); |
| if (ret < 0) |
| return ret; |
| |
| sps->log2_max_poc_lsb = get_ue_golomb_long(gb) + 4; |
| if (sps->log2_max_poc_lsb > 16) { |
| av_log(avctx, AV_LOG_ERROR, "log2_max_pic_order_cnt_lsb_minus4 out range: %d\n", |
| sps->log2_max_poc_lsb - 4); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| sublayer_ordering_info = get_bits1(gb); |
| start = sublayer_ordering_info ? 0 : sps->max_sub_layers - 1; |
| for (i = start; i < sps->max_sub_layers; i++) { |
| sps->temporal_layer[i].max_dec_pic_buffering = get_ue_golomb_long(gb) + 1; |
| sps->temporal_layer[i].num_reorder_pics = get_ue_golomb_long(gb); |
| sps->temporal_layer[i].max_latency_increase = get_ue_golomb_long(gb) - 1; |
| if (sps->temporal_layer[i].max_dec_pic_buffering > MAX_DPB_SIZE) { |
| av_log(avctx, AV_LOG_ERROR, "sps_max_dec_pic_buffering_minus1 out of range: %d\n", |
| sps->temporal_layer[i].max_dec_pic_buffering - 1); |
| return AVERROR_INVALIDDATA; |
| } |
| if (sps->temporal_layer[i].num_reorder_pics > sps->temporal_layer[i].max_dec_pic_buffering - 1) { |
| av_log(avctx, AV_LOG_WARNING, "sps_max_num_reorder_pics out of range: %d\n", |
| sps->temporal_layer[i].num_reorder_pics); |
| if (avctx->err_recognition & AV_EF_EXPLODE || |
| sps->temporal_layer[i].num_reorder_pics > MAX_DPB_SIZE - 1) { |
| return AVERROR_INVALIDDATA; |
| } |
| sps->temporal_layer[i].max_dec_pic_buffering = sps->temporal_layer[i].num_reorder_pics + 1; |
| } |
| } |
| |
| if (!sublayer_ordering_info) { |
| for (i = 0; i < start; i++) { |
| sps->temporal_layer[i].max_dec_pic_buffering = sps->temporal_layer[start].max_dec_pic_buffering; |
| sps->temporal_layer[i].num_reorder_pics = sps->temporal_layer[start].num_reorder_pics; |
| sps->temporal_layer[i].max_latency_increase = sps->temporal_layer[start].max_latency_increase; |
| } |
| } |
| |
| sps->log2_min_cb_size = get_ue_golomb_long(gb) + 3; |
| sps->log2_diff_max_min_coding_block_size = get_ue_golomb_long(gb); |
| sps->log2_min_tb_size = get_ue_golomb_long(gb) + 2; |
| log2_diff_max_min_transform_block_size = get_ue_golomb_long(gb); |
| sps->log2_max_trafo_size = log2_diff_max_min_transform_block_size + |
| sps->log2_min_tb_size; |
| |
| if (sps->log2_min_cb_size < 3 || sps->log2_min_cb_size > 30) { |
| av_log(avctx, AV_LOG_ERROR, "Invalid value %d for log2_min_cb_size", sps->log2_min_cb_size); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| if (sps->log2_diff_max_min_coding_block_size > 30) { |
| av_log(avctx, AV_LOG_ERROR, "Invalid value %d for log2_diff_max_min_coding_block_size", sps->log2_diff_max_min_coding_block_size); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| if (sps->log2_min_tb_size >= sps->log2_min_cb_size || sps->log2_min_tb_size < 2) { |
| av_log(avctx, AV_LOG_ERROR, "Invalid value for log2_min_tb_size"); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| if (log2_diff_max_min_transform_block_size < 0 || log2_diff_max_min_transform_block_size > 30) { |
| av_log(avctx, AV_LOG_ERROR, "Invalid value %d for log2_diff_max_min_transform_block_size", log2_diff_max_min_transform_block_size); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| sps->max_transform_hierarchy_depth_inter = get_ue_golomb_long(gb); |
| sps->max_transform_hierarchy_depth_intra = get_ue_golomb_long(gb); |
| |
| sps->scaling_list_enable_flag = get_bits1(gb); |
| if (sps->scaling_list_enable_flag) { |
| set_default_scaling_list_data(&sps->scaling_list); |
| |
| if (get_bits1(gb)) { |
| ret = scaling_list_data(gb, avctx, &sps->scaling_list, sps); |
| if (ret < 0) |
| return ret; |
| } |
| } |
| |
| sps->amp_enabled_flag = get_bits1(gb); |
| sps->sao_enabled = get_bits1(gb); |
| |
| sps->pcm_enabled_flag = get_bits1(gb); |
| if (sps->pcm_enabled_flag) { |
| sps->pcm.bit_depth = get_bits(gb, 4) + 1; |
| sps->pcm.bit_depth_chroma = get_bits(gb, 4) + 1; |
| sps->pcm.log2_min_pcm_cb_size = get_ue_golomb_long(gb) + 3; |
| sps->pcm.log2_max_pcm_cb_size = sps->pcm.log2_min_pcm_cb_size + |
| get_ue_golomb_long(gb); |
| if (sps->pcm.bit_depth > sps->bit_depth) { |
| av_log(avctx, AV_LOG_ERROR, |
| "PCM bit depth (%d) is greater than normal bit depth (%d)\n", |
| sps->pcm.bit_depth, sps->bit_depth); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| sps->pcm.loop_filter_disable_flag = get_bits1(gb); |
| } |
| |
| sps->nb_st_rps = get_ue_golomb_long(gb); |
| if (sps->nb_st_rps > MAX_SHORT_TERM_RPS_COUNT) { |
| av_log(avctx, AV_LOG_ERROR, "Too many short term RPS: %d.\n", |
| sps->nb_st_rps); |
| return AVERROR_INVALIDDATA; |
| } |
| for (i = 0; i < sps->nb_st_rps; i++) { |
| if ((ret = ff_hevc_decode_short_term_rps(gb, avctx, &sps->st_rps[i], |
| sps, 0)) < 0) |
| return ret; |
| } |
| |
| sps->long_term_ref_pics_present_flag = get_bits1(gb); |
| if (sps->long_term_ref_pics_present_flag) { |
| sps->num_long_term_ref_pics_sps = get_ue_golomb_long(gb); |
| if (sps->num_long_term_ref_pics_sps > 31U) { |
| av_log(avctx, AV_LOG_ERROR, "num_long_term_ref_pics_sps %d is out of range.\n", |
| sps->num_long_term_ref_pics_sps); |
| return AVERROR_INVALIDDATA; |
| } |
| for (i = 0; i < sps->num_long_term_ref_pics_sps; i++) { |
| sps->lt_ref_pic_poc_lsb_sps[i] = get_bits(gb, sps->log2_max_poc_lsb); |
| sps->used_by_curr_pic_lt_sps_flag[i] = get_bits1(gb); |
| } |
| } |
| |
| sps->sps_temporal_mvp_enabled_flag = get_bits1(gb); |
| sps->sps_strong_intra_smoothing_enable_flag = get_bits1(gb); |
| sps->vui.sar = (AVRational){0, 1}; |
| vui_present = get_bits1(gb); |
| if (vui_present) |
| decode_vui(gb, avctx, apply_defdispwin, sps); |
| |
| if (get_bits1(gb)) { // sps_extension_flag |
| int sps_extension_flag[1]; |
| for (i = 0; i < 1; i++) |
| sps_extension_flag[i] = get_bits1(gb); |
| skip_bits(gb, 7); //sps_extension_7bits = get_bits(gb, 7); |
| if (sps_extension_flag[0]) { |
| int extended_precision_processing_flag; |
| int high_precision_offsets_enabled_flag; |
| int cabac_bypass_alignment_enabled_flag; |
| |
| sps->transform_skip_rotation_enabled_flag = get_bits1(gb); |
| sps->transform_skip_context_enabled_flag = get_bits1(gb); |
| sps->implicit_rdpcm_enabled_flag = get_bits1(gb); |
| |
| sps->explicit_rdpcm_enabled_flag = get_bits1(gb); |
| |
| extended_precision_processing_flag = get_bits1(gb); |
| if (extended_precision_processing_flag) |
| av_log(avctx, AV_LOG_WARNING, |
| "extended_precision_processing_flag not yet implemented\n"); |
| |
| sps->intra_smoothing_disabled_flag = get_bits1(gb); |
| high_precision_offsets_enabled_flag = get_bits1(gb); |
| if (high_precision_offsets_enabled_flag) |
| av_log(avctx, AV_LOG_WARNING, |
| "high_precision_offsets_enabled_flag not yet implemented\n"); |
| |
| sps->persistent_rice_adaptation_enabled_flag = get_bits1(gb); |
| |
| cabac_bypass_alignment_enabled_flag = get_bits1(gb); |
| if (cabac_bypass_alignment_enabled_flag) |
| av_log(avctx, AV_LOG_WARNING, |
| "cabac_bypass_alignment_enabled_flag not yet implemented\n"); |
| } |
| } |
| if (apply_defdispwin) { |
| sps->output_window.left_offset += sps->vui.def_disp_win.left_offset; |
| sps->output_window.right_offset += sps->vui.def_disp_win.right_offset; |
| sps->output_window.top_offset += sps->vui.def_disp_win.top_offset; |
| sps->output_window.bottom_offset += sps->vui.def_disp_win.bottom_offset; |
| } |
| if (sps->output_window.left_offset & (0x1F >> (sps->pixel_shift)) && |
| !(avctx->flags & AV_CODEC_FLAG_UNALIGNED)) { |
| sps->output_window.left_offset &= ~(0x1F >> (sps->pixel_shift)); |
| av_log(avctx, AV_LOG_WARNING, "Reducing left output window to %d " |
| "chroma samples to preserve alignment.\n", |
| sps->output_window.left_offset); |
| } |
| sps->output_width = sps->width - |
| (sps->output_window.left_offset + sps->output_window.right_offset); |
| sps->output_height = sps->height - |
| (sps->output_window.top_offset + sps->output_window.bottom_offset); |
| if (sps->width <= sps->output_window.left_offset + (int64_t)sps->output_window.right_offset || |
| sps->height <= sps->output_window.top_offset + (int64_t)sps->output_window.bottom_offset) { |
| av_log(avctx, AV_LOG_WARNING, "Invalid visible frame dimensions: %dx%d.\n", |
| sps->output_width, sps->output_height); |
| if (avctx->err_recognition & AV_EF_EXPLODE) { |
| return AVERROR_INVALIDDATA; |
| } |
| av_log(avctx, AV_LOG_WARNING, |
| "Displaying the whole video surface.\n"); |
| memset(&sps->pic_conf_win, 0, sizeof(sps->pic_conf_win)); |
| memset(&sps->output_window, 0, sizeof(sps->output_window)); |
| sps->output_width = sps->width; |
| sps->output_height = sps->height; |
| } |
| |
| // Inferred parameters |
| sps->log2_ctb_size = sps->log2_min_cb_size + |
| sps->log2_diff_max_min_coding_block_size; |
| sps->log2_min_pu_size = sps->log2_min_cb_size - 1; |
| |
| if (sps->log2_ctb_size > MAX_LOG2_CTB_SIZE) { |
| av_log(avctx, AV_LOG_ERROR, "CTB size out of range: 2^%d\n", sps->log2_ctb_size); |
| return AVERROR_INVALIDDATA; |
| } |
| if (sps->log2_ctb_size < 4) { |
| av_log(avctx, |
| AV_LOG_ERROR, |
| "log2_ctb_size %d differs from the bounds of any known profile\n", |
| sps->log2_ctb_size); |
| avpriv_request_sample(avctx, "log2_ctb_size %d", sps->log2_ctb_size); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| sps->ctb_width = (sps->width + (1 << sps->log2_ctb_size) - 1) >> sps->log2_ctb_size; |
| sps->ctb_height = (sps->height + (1 << sps->log2_ctb_size) - 1) >> sps->log2_ctb_size; |
| sps->ctb_size = sps->ctb_width * sps->ctb_height; |
| |
| sps->min_cb_width = sps->width >> sps->log2_min_cb_size; |
| sps->min_cb_height = sps->height >> sps->log2_min_cb_size; |
| sps->min_tb_width = sps->width >> sps->log2_min_tb_size; |
| sps->min_tb_height = sps->height >> sps->log2_min_tb_size; |
| sps->min_pu_width = sps->width >> sps->log2_min_pu_size; |
| sps->min_pu_height = sps->height >> sps->log2_min_pu_size; |
| sps->tb_mask = (1 << (sps->log2_ctb_size - sps->log2_min_tb_size)) - 1; |
| |
| sps->qp_bd_offset = 6 * (sps->bit_depth - 8); |
| |
| if (av_mod_uintp2(sps->width, sps->log2_min_cb_size) || |
| av_mod_uintp2(sps->height, sps->log2_min_cb_size)) { |
| av_log(avctx, AV_LOG_ERROR, "Invalid coded frame dimensions.\n"); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| if (sps->max_transform_hierarchy_depth_inter > sps->log2_ctb_size - sps->log2_min_tb_size) { |
| av_log(avctx, AV_LOG_ERROR, "max_transform_hierarchy_depth_inter out of range: %d\n", |
| sps->max_transform_hierarchy_depth_inter); |
| return AVERROR_INVALIDDATA; |
| } |
| if (sps->max_transform_hierarchy_depth_intra > sps->log2_ctb_size - sps->log2_min_tb_size) { |
| av_log(avctx, AV_LOG_ERROR, "max_transform_hierarchy_depth_intra out of range: %d\n", |
| sps->max_transform_hierarchy_depth_intra); |
| return AVERROR_INVALIDDATA; |
| } |
| if (sps->log2_max_trafo_size > FFMIN(sps->log2_ctb_size, 5)) { |
| av_log(avctx, AV_LOG_ERROR, |
| "max transform block size out of range: %d\n", |
| sps->log2_max_trafo_size); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| if (get_bits_left(gb) < 0) { |
| av_log(avctx, AV_LOG_ERROR, |
| "Overread SPS by %d bits\n", -get_bits_left(gb)); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| return 0; |
| } |
| |
| int ff_hevc_decode_nal_sps(GetBitContext *gb, AVCodecContext *avctx, |
| HEVCParamSets *ps, int apply_defdispwin) |
| { |
| HEVCSPS *sps; |
| AVBufferRef *sps_buf = av_buffer_allocz(sizeof(*sps)); |
| unsigned int sps_id; |
| int ret; |
| |
| if (!sps_buf) |
| return AVERROR(ENOMEM); |
| sps = (HEVCSPS*)sps_buf->data; |
| |
| av_log(avctx, AV_LOG_DEBUG, "Decoding SPS\n"); |
| |
| ret = ff_hevc_parse_sps(sps, gb, &sps_id, |
| apply_defdispwin, |
| ps->vps_list, avctx); |
| if (ret < 0) { |
| av_buffer_unref(&sps_buf); |
| return ret; |
| } |
| |
| if (avctx->debug & FF_DEBUG_BITSTREAM) { |
| av_log(avctx, AV_LOG_DEBUG, |
| "Parsed SPS: id %d; coded wxh: %dx%d; " |
| "cropped wxh: %dx%d; pix_fmt: %s.\n", |
| sps_id, sps->width, sps->height, |
| sps->output_width, sps->output_height, |
| av_get_pix_fmt_name(sps->pix_fmt)); |
| } |
| |
| /* check if this is a repeat of an already parsed SPS, then keep the |
| * original one. |
| * otherwise drop all PPSes that depend on it */ |
| if (ps->sps_list[sps_id] && |
| !memcmp(ps->sps_list[sps_id]->data, sps_buf->data, sps_buf->size)) { |
| av_buffer_unref(&sps_buf); |
| } else { |
| remove_sps(ps, sps_id); |
| ps->sps_list[sps_id] = sps_buf; |
| } |
| |
| return 0; |
| } |
| |
| static void hevc_pps_free(void *opaque, uint8_t *data) |
| { |
| HEVCPPS *pps = (HEVCPPS*)data; |
| |
| av_freep(&pps->column_width); |
| av_freep(&pps->row_height); |
| av_freep(&pps->col_bd); |
| av_freep(&pps->row_bd); |
| av_freep(&pps->col_idxX); |
| av_freep(&pps->ctb_addr_rs_to_ts); |
| av_freep(&pps->ctb_addr_ts_to_rs); |
| av_freep(&pps->tile_pos_rs); |
| av_freep(&pps->tile_id); |
| av_freep(&pps->min_tb_addr_zs_tab); |
| |
| av_freep(&pps); |
| } |
| |
| static int pps_range_extensions(GetBitContext *gb, AVCodecContext *avctx, |
| HEVCPPS *pps, HEVCSPS *sps) { |
| int i; |
| |
| if (pps->transform_skip_enabled_flag) { |
| pps->log2_max_transform_skip_block_size = get_ue_golomb_long(gb) + 2; |
| } |
| pps->cross_component_prediction_enabled_flag = get_bits1(gb); |
| pps->chroma_qp_offset_list_enabled_flag = get_bits1(gb); |
| if (pps->chroma_qp_offset_list_enabled_flag) { |
| pps->diff_cu_chroma_qp_offset_depth = get_ue_golomb_long(gb); |
| pps->chroma_qp_offset_list_len_minus1 = get_ue_golomb_long(gb); |
| if (pps->chroma_qp_offset_list_len_minus1 && pps->chroma_qp_offset_list_len_minus1 >= 5) { |
| av_log(avctx, AV_LOG_ERROR, |
| "chroma_qp_offset_list_len_minus1 shall be in the range [0, 5].\n"); |
| return AVERROR_INVALIDDATA; |
| } |
| for (i = 0; i <= pps->chroma_qp_offset_list_len_minus1; i++) { |
| pps->cb_qp_offset_list[i] = get_se_golomb_long(gb); |
| if (pps->cb_qp_offset_list[i]) { |
| av_log(avctx, AV_LOG_WARNING, |
| "cb_qp_offset_list not tested yet.\n"); |
| } |
| pps->cr_qp_offset_list[i] = get_se_golomb_long(gb); |
| if (pps->cr_qp_offset_list[i]) { |
| av_log(avctx, AV_LOG_WARNING, |
| "cb_qp_offset_list not tested yet.\n"); |
| } |
| } |
| } |
| pps->log2_sao_offset_scale_luma = get_ue_golomb_long(gb); |
| pps->log2_sao_offset_scale_chroma = get_ue_golomb_long(gb); |
| |
| return(0); |
| } |
| |
| static inline int setup_pps(AVCodecContext *avctx, GetBitContext *gb, |
| HEVCPPS *pps, HEVCSPS *sps) |
| { |
| int log2_diff; |
| int pic_area_in_ctbs; |
| int i, j, x, y, ctb_addr_rs, tile_id; |
| |
| // Inferred parameters |
| pps->col_bd = av_malloc_array(pps->num_tile_columns + 1, sizeof(*pps->col_bd)); |
| pps->row_bd = av_malloc_array(pps->num_tile_rows + 1, sizeof(*pps->row_bd)); |
| pps->col_idxX = av_malloc_array(sps->ctb_width, sizeof(*pps->col_idxX)); |
| if (!pps->col_bd || !pps->row_bd || !pps->col_idxX) |
| return AVERROR(ENOMEM); |
| |
| if (pps->uniform_spacing_flag) { |
| if (!pps->column_width) { |
| pps->column_width = av_malloc_array(pps->num_tile_columns, sizeof(*pps->column_width)); |
| pps->row_height = av_malloc_array(pps->num_tile_rows, sizeof(*pps->row_height)); |
| } |
| if (!pps->column_width || !pps->row_height) |
| return AVERROR(ENOMEM); |
| |
| for (i = 0; i < pps->num_tile_columns; i++) { |
| pps->column_width[i] = ((i + 1) * sps->ctb_width) / pps->num_tile_columns - |
| (i * sps->ctb_width) / pps->num_tile_columns; |
| } |
| |
| for (i = 0; i < pps->num_tile_rows; i++) { |
| pps->row_height[i] = ((i + 1) * sps->ctb_height) / pps->num_tile_rows - |
| (i * sps->ctb_height) / pps->num_tile_rows; |
| } |
| } |
| |
| pps->col_bd[0] = 0; |
| for (i = 0; i < pps->num_tile_columns; i++) |
| pps->col_bd[i + 1] = pps->col_bd[i] + pps->column_width[i]; |
| |
| pps->row_bd[0] = 0; |
| for (i = 0; i < pps->num_tile_rows; i++) |
| pps->row_bd[i + 1] = pps->row_bd[i] + pps->row_height[i]; |
| |
| for (i = 0, j = 0; i < sps->ctb_width; i++) { |
| if (i > pps->col_bd[j]) |
| j++; |
| pps->col_idxX[i] = j; |
| } |
| |
| /** |
| * 6.5 |
| */ |
| pic_area_in_ctbs = sps->ctb_width * sps->ctb_height; |
| |
| pps->ctb_addr_rs_to_ts = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->ctb_addr_rs_to_ts)); |
| pps->ctb_addr_ts_to_rs = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->ctb_addr_ts_to_rs)); |
| pps->tile_id = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->tile_id)); |
| pps->min_tb_addr_zs_tab = av_malloc_array((sps->tb_mask+2) * (sps->tb_mask+2), sizeof(*pps->min_tb_addr_zs_tab)); |
| if (!pps->ctb_addr_rs_to_ts || !pps->ctb_addr_ts_to_rs || |
| !pps->tile_id || !pps->min_tb_addr_zs_tab) { |
| return AVERROR(ENOMEM); |
| } |
| |
| for (ctb_addr_rs = 0; ctb_addr_rs < pic_area_in_ctbs; ctb_addr_rs++) { |
| int tb_x = ctb_addr_rs % sps->ctb_width; |
| int tb_y = ctb_addr_rs / sps->ctb_width; |
| int tile_x = 0; |
| int tile_y = 0; |
| int val = 0; |
| |
| for (i = 0; i < pps->num_tile_columns; i++) { |
| if (tb_x < pps->col_bd[i + 1]) { |
| tile_x = i; |
| break; |
| } |
| } |
| |
| for (i = 0; i < pps->num_tile_rows; i++) { |
| if (tb_y < pps->row_bd[i + 1]) { |
| tile_y = i; |
| break; |
| } |
| } |
| |
| for (i = 0; i < tile_x; i++) |
| val += pps->row_height[tile_y] * pps->column_width[i]; |
| for (i = 0; i < tile_y; i++) |
| val += sps->ctb_width * pps->row_height[i]; |
| |
| val += (tb_y - pps->row_bd[tile_y]) * pps->column_width[tile_x] + |
| tb_x - pps->col_bd[tile_x]; |
| |
| pps->ctb_addr_rs_to_ts[ctb_addr_rs] = val; |
| pps->ctb_addr_ts_to_rs[val] = ctb_addr_rs; |
| } |
| |
| for (j = 0, tile_id = 0; j < pps->num_tile_rows; j++) |
| for (i = 0; i < pps->num_tile_columns; i++, tile_id++) |
| for (y = pps->row_bd[j]; y < pps->row_bd[j + 1]; y++) |
| for (x = pps->col_bd[i]; x < pps->col_bd[i + 1]; x++) |
| pps->tile_id[pps->ctb_addr_rs_to_ts[y * sps->ctb_width + x]] = tile_id; |
| |
| pps->tile_pos_rs = av_malloc_array(tile_id, sizeof(*pps->tile_pos_rs)); |
| if (!pps->tile_pos_rs) |
| return AVERROR(ENOMEM); |
| |
| for (j = 0; j < pps->num_tile_rows; j++) |
| for (i = 0; i < pps->num_tile_columns; i++) |
| pps->tile_pos_rs[j * pps->num_tile_columns + i] = |
| pps->row_bd[j] * sps->ctb_width + pps->col_bd[i]; |
| |
| log2_diff = sps->log2_ctb_size - sps->log2_min_tb_size; |
| pps->min_tb_addr_zs = &pps->min_tb_addr_zs_tab[1*(sps->tb_mask+2)+1]; |
| for (y = 0; y < sps->tb_mask+2; y++) { |
| pps->min_tb_addr_zs_tab[y*(sps->tb_mask+2)] = -1; |
| pps->min_tb_addr_zs_tab[y] = -1; |
| } |
| for (y = 0; y < sps->tb_mask+1; y++) { |
| for (x = 0; x < sps->tb_mask+1; x++) { |
| int tb_x = x >> log2_diff; |
| int tb_y = y >> log2_diff; |
| int rs = sps->ctb_width * tb_y + tb_x; |
| int val = pps->ctb_addr_rs_to_ts[rs] << (log2_diff * 2); |
| for (i = 0; i < log2_diff; i++) { |
| int m = 1 << i; |
| val += (m & x ? m * m : 0) + (m & y ? 2 * m * m : 0); |
| } |
| pps->min_tb_addr_zs[y * (sps->tb_mask+2) + x] = val; |
| } |
| } |
| |
| return 0; |
| } |
| |
| int ff_hevc_decode_nal_pps(GetBitContext *gb, AVCodecContext *avctx, |
| HEVCParamSets *ps) |
| { |
| HEVCSPS *sps = NULL; |
| int i, ret = 0; |
| unsigned int pps_id = 0; |
| |
| AVBufferRef *pps_buf; |
| HEVCPPS *pps = av_mallocz(sizeof(*pps)); |
| |
| if (!pps) |
| return AVERROR(ENOMEM); |
| |
| pps_buf = av_buffer_create((uint8_t *)pps, sizeof(*pps), |
| hevc_pps_free, NULL, 0); |
| if (!pps_buf) { |
| av_freep(&pps); |
| return AVERROR(ENOMEM); |
| } |
| |
| av_log(avctx, AV_LOG_DEBUG, "Decoding PPS\n"); |
| |
| // Default values |
| pps->loop_filter_across_tiles_enabled_flag = 1; |
| pps->num_tile_columns = 1; |
| pps->num_tile_rows = 1; |
| pps->uniform_spacing_flag = 1; |
| pps->disable_dbf = 0; |
| pps->beta_offset = 0; |
| pps->tc_offset = 0; |
| pps->log2_max_transform_skip_block_size = 2; |
| |
| // Coded parameters |
| pps_id = get_ue_golomb_long(gb); |
| if (pps_id >= MAX_PPS_COUNT) { |
| av_log(avctx, AV_LOG_ERROR, "PPS id out of range: %d\n", pps_id); |
| ret = AVERROR_INVALIDDATA; |
| goto err; |
| } |
| pps->sps_id = get_ue_golomb_long(gb); |
| if (pps->sps_id >= MAX_SPS_COUNT) { |
| av_log(avctx, AV_LOG_ERROR, "SPS id out of range: %d\n", pps->sps_id); |
| ret = AVERROR_INVALIDDATA; |
| goto err; |
| } |
| if (!ps->sps_list[pps->sps_id]) { |
| av_log(avctx, AV_LOG_ERROR, "SPS %u does not exist.\n", pps->sps_id); |
| ret = AVERROR_INVALIDDATA; |
| goto err; |
| } |
| sps = (HEVCSPS *)ps->sps_list[pps->sps_id]->data; |
| |
| pps->dependent_slice_segments_enabled_flag = get_bits1(gb); |
| pps->output_flag_present_flag = get_bits1(gb); |
| pps->num_extra_slice_header_bits = get_bits(gb, 3); |
| |
| pps->sign_data_hiding_flag = get_bits1(gb); |
| |
| pps->cabac_init_present_flag = get_bits1(gb); |
| |
| pps->num_ref_idx_l0_default_active = get_ue_golomb_long(gb) + 1; |
| pps->num_ref_idx_l1_default_active = get_ue_golomb_long(gb) + 1; |
| |
| pps->pic_init_qp_minus26 = get_se_golomb(gb); |
| |
| pps->constrained_intra_pred_flag = get_bits1(gb); |
| pps->transform_skip_enabled_flag = get_bits1(gb); |
| |
| pps->cu_qp_delta_enabled_flag = get_bits1(gb); |
| pps->diff_cu_qp_delta_depth = 0; |
| if (pps->cu_qp_delta_enabled_flag) |
| pps->diff_cu_qp_delta_depth = get_ue_golomb_long(gb); |
| |
| if (pps->diff_cu_qp_delta_depth < 0 || |
| pps->diff_cu_qp_delta_depth > sps->log2_diff_max_min_coding_block_size) { |
| av_log(avctx, AV_LOG_ERROR, "diff_cu_qp_delta_depth %d is invalid\n", |
| pps->diff_cu_qp_delta_depth); |
| ret = AVERROR_INVALIDDATA; |
| goto err; |
| } |
| |
| pps->cb_qp_offset = get_se_golomb(gb); |
| if (pps->cb_qp_offset < -12 || pps->cb_qp_offset > 12) { |
| av_log(avctx, AV_LOG_ERROR, "pps_cb_qp_offset out of range: %d\n", |
| pps->cb_qp_offset); |
| ret = AVERROR_INVALIDDATA; |
| goto err; |
| } |
| pps->cr_qp_offset = get_se_golomb(gb); |
| if (pps->cr_qp_offset < -12 || pps->cr_qp_offset > 12) { |
| av_log(avctx, AV_LOG_ERROR, "pps_cr_qp_offset out of range: %d\n", |
| pps->cr_qp_offset); |
| ret = AVERROR_INVALIDDATA; |
| goto err; |
| } |
| pps->pic_slice_level_chroma_qp_offsets_present_flag = get_bits1(gb); |
| |
| pps->weighted_pred_flag = get_bits1(gb); |
| pps->weighted_bipred_flag = get_bits1(gb); |
| |
| pps->transquant_bypass_enable_flag = get_bits1(gb); |
| pps->tiles_enabled_flag = get_bits1(gb); |
| pps->entropy_coding_sync_enabled_flag = get_bits1(gb); |
| |
| if (pps->tiles_enabled_flag) { |
| pps->num_tile_columns = get_ue_golomb_long(gb) + 1; |
| pps->num_tile_rows = get_ue_golomb_long(gb) + 1; |
| if (pps->num_tile_columns <= 0 || |
| pps->num_tile_columns >= sps->width) { |
| av_log(avctx, AV_LOG_ERROR, "num_tile_columns_minus1 out of range: %d\n", |
| pps->num_tile_columns - 1); |
| ret = AVERROR_INVALIDDATA; |
| goto err; |
| } |
| if (pps->num_tile_rows <= 0 || |
| pps->num_tile_rows >= sps->height) { |
| av_log(avctx, AV_LOG_ERROR, "num_tile_rows_minus1 out of range: %d\n", |
| pps->num_tile_rows - 1); |
| ret = AVERROR_INVALIDDATA; |
| goto err; |
| } |
| |
| pps->column_width = av_malloc_array(pps->num_tile_columns, sizeof(*pps->column_width)); |
| pps->row_height = av_malloc_array(pps->num_tile_rows, sizeof(*pps->row_height)); |
| if (!pps->column_width || !pps->row_height) { |
| ret = AVERROR(ENOMEM); |
| goto err; |
| } |
| |
| pps->uniform_spacing_flag = get_bits1(gb); |
| if (!pps->uniform_spacing_flag) { |
| uint64_t sum = 0; |
| for (i = 0; i < pps->num_tile_columns - 1; i++) { |
| pps->column_width[i] = get_ue_golomb_long(gb) + 1; |
| sum += pps->column_width[i]; |
| } |
| if (sum >= sps->ctb_width) { |
| av_log(avctx, AV_LOG_ERROR, "Invalid tile widths.\n"); |
| ret = AVERROR_INVALIDDATA; |
| goto err; |
| } |
| pps->column_width[pps->num_tile_columns - 1] = sps->ctb_width - sum; |
| |
| sum = 0; |
| for (i = 0; i < pps->num_tile_rows - 1; i++) { |
| pps->row_height[i] = get_ue_golomb_long(gb) + 1; |
| sum += pps->row_height[i]; |
| } |
| if (sum >= sps->ctb_height) { |
| av_log(avctx, AV_LOG_ERROR, "Invalid tile heights.\n"); |
| ret = AVERROR_INVALIDDATA; |
| goto err; |
| } |
| pps->row_height[pps->num_tile_rows - 1] = sps->ctb_height - sum; |
| } |
| pps->loop_filter_across_tiles_enabled_flag = get_bits1(gb); |
| } |
| |
| pps->seq_loop_filter_across_slices_enabled_flag = get_bits1(gb); |
| |
| pps->deblocking_filter_control_present_flag = get_bits1(gb); |
| if (pps->deblocking_filter_control_present_flag) { |
| pps->deblocking_filter_override_enabled_flag = get_bits1(gb); |
| pps->disable_dbf = get_bits1(gb); |
| if (!pps->disable_dbf) { |
| pps->beta_offset = get_se_golomb(gb) * 2; |
| pps->tc_offset = get_se_golomb(gb) * 2; |
| if (pps->beta_offset/2 < -6 || pps->beta_offset/2 > 6) { |
| av_log(avctx, AV_LOG_ERROR, "pps_beta_offset_div2 out of range: %d\n", |
| pps->beta_offset/2); |
| ret = AVERROR_INVALIDDATA; |
| goto err; |
| } |
| if (pps->tc_offset/2 < -6 || pps->tc_offset/2 > 6) { |
| av_log(avctx, AV_LOG_ERROR, "pps_tc_offset_div2 out of range: %d\n", |
| pps->tc_offset/2); |
| ret = AVERROR_INVALIDDATA; |
| goto err; |
| } |
| } |
| } |
| |
| pps->scaling_list_data_present_flag = get_bits1(gb); |
| if (pps->scaling_list_data_present_flag) { |
| set_default_scaling_list_data(&pps->scaling_list); |
| ret = scaling_list_data(gb, avctx, &pps->scaling_list, sps); |
| if (ret < 0) |
| goto err; |
| } |
| pps->lists_modification_present_flag = get_bits1(gb); |
| pps->log2_parallel_merge_level = get_ue_golomb_long(gb) + 2; |
| if (pps->log2_parallel_merge_level > sps->log2_ctb_size) { |
| av_log(avctx, AV_LOG_ERROR, "log2_parallel_merge_level_minus2 out of range: %d\n", |
| pps->log2_parallel_merge_level - 2); |
| ret = AVERROR_INVALIDDATA; |
| goto err; |
| } |
| |
| pps->slice_header_extension_present_flag = get_bits1(gb); |
| |
| if (get_bits1(gb)) { // pps_extension_present_flag |
| int pps_range_extensions_flag = get_bits1(gb); |
| /* int pps_extension_7bits = */ get_bits(gb, 7); |
| if (sps->ptl.general_ptl.profile_idc == FF_PROFILE_HEVC_REXT && pps_range_extensions_flag) { |
| if ((ret = pps_range_extensions(gb, avctx, pps, sps)) < 0) |
| goto err; |
| } |
| } |
| |
| ret = setup_pps(avctx, gb, pps, sps); |
| if (ret < 0) |
| goto err; |
| |
| if (get_bits_left(gb) < 0) { |
| av_log(avctx, AV_LOG_ERROR, |
| "Overread PPS by %d bits\n", -get_bits_left(gb)); |
| goto err; |
| } |
| |
| remove_pps(ps, pps_id); |
| ps->pps_list[pps_id] = pps_buf; |
| |
| return 0; |
| |
| err: |
| av_buffer_unref(&pps_buf); |
| return ret; |
| } |
