Add HEVC decoder

Initially written by Guillaume Martres <smarter@ubuntu.com> as a GSoC
project. Further contributions by the OpenHEVC project and other
developers, namely:

Mickaël Raulet <mraulet@insa-rennes.fr>
Seppo Tomperi <seppo.tomperi@vtt.fi>
Gildas Cocherel <gildas.cocherel@laposte.net>
Khaled Jerbi <khaled_jerbi@yahoo.fr>
Wassim Hamidouche <wassim.hamidouche@insa-rennes.fr>
Vittorio Giovara <vittorio.giovara@gmail.com>
Jan Ekström <jeebjp@gmail.com>
Anton Khirnov <anton@khirnov.net>
Martin Storsjö <martin@martin.st>
Luca Barbato <lu_zero@gentoo.org>
Yusuke Nakamura <muken.the.vfrmaniac@gmail.com>
Reimar Döffinger <Reimar.Doeffinger@gmx.de>
Diego Biurrun <diego@biurrun.de>

Signed-off-by: Anton Khirnov <anton@khirnov.net>

1 files changed, 1329 insertions, 0 deletions

diff --git a/libavcodec/hevc_ps.c b/libavcodec/hevc_ps.c
new file mode 100644
index 0000000000..15f73be9bf
--- /dev/null
+++ b/libavcodec/hevc_ps.c
@@ -0,0 +1,1329 @@
+/*
+ * 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 Libav.
+ *
+ * Libav 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.
+ *
+ * Libav 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 Libav; 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 },
+};
+
+int ff_hevc_decode_short_term_rps(HEVCContext *s, ShortTermRPS *rps,
+                                  const HEVCSPS *sps, int is_slice_header)
+{
+    HEVCLocalContext *lc = &s->HEVClc;
+    uint8_t rps_predict = 0;
+    int delta_poc;
+    int k0 = 0;
+    int k1 = 0;
+    int k  = 0;
+    int i;
+
+    GetBitContext *gb = &lc->gb;
+
+    if (rps != sps->st_rps && sps->nb_st_rps)
+        rps_predict = get_bits1(gb);
+
+    if (rps_predict) {
+        const ShortTermRPS *rps_ridx;
+        int delta_rps, abs_delta_rps;
+        uint8_t use_delta_flag = 0;
+        uint8_t delta_rps_sign;
+
+        if (is_slice_header) {
+            int delta_idx = get_ue_golomb_long(gb) + 1;
+            if (delta_idx > sps->nb_st_rps) {
+                av_log(s->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];
+        } 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;
+        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(s->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(HEVCLocalContext *lc, PTL *ptl,
+                                     int max_num_sub_layers)
+{
+    int i, j;
+    GetBitContext *gb = &lc->gb;
+
+    ptl->general_profile_space = get_bits(gb, 2);
+    ptl->general_tier_flag     = get_bits1(gb);
+    ptl->general_profile_idc   = get_bits(gb, 5);
+    for (i = 0; i < 32; i++)
+        ptl->general_profile_compatibility_flag[i] = get_bits1(gb);
+    skip_bits1(gb); // general_progressive_source_flag
+    skip_bits1(gb); // general_interlaced_source_flag
+    skip_bits1(gb); // general_non_packed_constraint_flag
+    skip_bits1(gb); // general_frame_only_constraint_flag
+    if (get_bits(gb, 16) != 0) // XXX_reserved_zero_44bits[0..15]
+        return -1;
+    if (get_bits(gb, 16) != 0) // XXX_reserved_zero_44bits[16..31]
+        return -1;
+    if (get_bits(gb, 12) != 0) // XXX_reserved_zero_44bits[32..43]
+        return -1;
+
+    ptl->general_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]) {
+            ptl->sub_layer_profile_space[i] = get_bits(gb, 2);
+            ptl->sub_layer_tier_flag[i]     = get_bits(gb, 1);
+            ptl->sub_layer_profile_idc[i]   = get_bits(gb, 5);
+            for (j = 0; j < 32; j++)
+                ptl->sub_layer_profile_compatibility_flags[i][j] = get_bits1(gb);
+            skip_bits1(gb); // sub_layer_progressive_source_flag
+            skip_bits1(gb); // sub_layer_interlaced_source_flag
+            skip_bits1(gb); // sub_layer_non_packed_constraint_flag
+            skip_bits1(gb); // sub_layer_frame_only_constraint_flag
+
+            if (get_bits(gb, 16) != 0) // sub_layer_reserved_zero_44bits[0..15]
+                return -1;
+            if (get_bits(gb, 16) != 0) // sub_layer_reserved_zero_44bits[16..31]
+                return -1;
+            if (get_bits(gb, 12) != 0) // sub_layer_reserved_zero_44bits[32..43]
+                return -1;
+        }
+        if (ptl->sub_layer_level_present_flag[i])
+            ptl->sub_layer_level_idc[i] = get_bits(gb, 8);
+    }
+    return 0;
+}
+
+static void decode_sublayer_hrd(HEVCContext *s, int nb_cpb,
+                                int subpic_params_present)
+{
+    GetBitContext *gb = &s->HEVClc.gb;
+    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 void decode_hrd(HEVCContext *s, int common_inf_present,
+                       int max_sublayers)
+{
+    GetBitContext *gb = &s->HEVClc.gb;
+    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;
+        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 (nal_params_present)
+            decode_sublayer_hrd(s, nb_cpb, subpic_params_present);
+        if (vcl_params_present)
+            decode_sublayer_hrd(s, nb_cpb, subpic_params_present);
+    }
+}
+
+int ff_hevc_decode_nal_vps(HEVCContext *s)
+{
+    int i,j;
+    GetBitContext *gb = &s->HEVClc.gb;
+    int vps_id = 0;
+    HEVCVPS *vps;
+
+    av_log(s->avctx, AV_LOG_DEBUG, "Decoding VPS\n");
+
+    vps = av_mallocz(sizeof(*vps));
+    if (!vps)
+        return AVERROR(ENOMEM);
+
+    vps_id = get_bits(gb, 4);
+    if (vps_id >= MAX_VPS_COUNT) {
+        av_log(s->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(s->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(s->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(s->avctx, AV_LOG_ERROR, "vps_max_sub_layers out of range: %d\n",
+               vps->vps_max_sub_layers);
+        goto err;
+    }
+
+    if (decode_profile_tier_level(&s->HEVClc, &vps->ptl, vps->vps_max_sub_layers) < 0) {
+        av_log(s->avctx, AV_LOG_ERROR, "Error decoding profile tier level.\n");
+        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) {
+            av_log(s->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(s->avctx, AV_LOG_ERROR, "vps_max_num_reorder_pics out of range: %d\n",
+                   vps->vps_num_reorder_pics[i]);
+            goto err;
+        }
+    }
+
+    vps->vps_max_layer_id   = get_bits(gb, 6);
+    vps->vps_num_layer_sets = get_ue_golomb_long(gb) + 1;
+    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);
+        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(s, common_inf_present, vps->vps_max_sub_layers);
+        }
+    }
+    get_bits1(gb); /* vps_extension_flag */
+
+    av_free(s->vps_list[vps_id]);
+    s->vps_list[vps_id] = vps;
+    return 0;
+
+err:
+    av_free(vps);
+    return AVERROR_INVALIDDATA;
+}
+
+static void decode_vui(HEVCContext *s, HEVCSPS *sps)
+{
+    VUI *vui          = &sps->vui;
+    GetBitContext *gb = &s->HEVClc.gb;
+    int sar_present;
+
+    av_log(s->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(s->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->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);
+        }
+    }
+
+    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);
+
+    vui->default_display_window_flag = get_bits1(gb);
+    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 (s->apply_defdispwin &&
+            s->avctx->flags2 & CODEC_FLAG2_IGNORE_CROP) {
+            av_log(s->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) {
+        vui->vui_num_units_in_tick               = get_bits(gb, 32);
+        vui->vui_time_scale                      = get_bits(gb, 32);
+        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(s, 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_inter, 64);
+}
+
+static int scaling_list_data(HEVCContext *s, ScalingList *sl)
+{
+    GetBitContext *gb = &s->HEVClc.gb;
+    uint8_t scaling_list_pred_mode_flag[4][6];
+    int32_t scaling_list_dc_coef[2][6];
+    int size_id, matrix_id, i, pos, delta;
+
+    for (size_id = 0; size_id < 4; size_id++)
+        for (matrix_id = 0; matrix_id < (size_id == 3 ? 2 : 6); matrix_id++) {
+            scaling_list_pred_mode_flag[size_id][matrix_id] = get_bits1(gb);
+            if (!scaling_list_pred_mode_flag[size_id][matrix_id]) {
+                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 < 0) {
+                        av_log(s->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;
+                }
+            }
+        }
+
+    return 0;
+}
+
+int ff_hevc_decode_nal_sps(HEVCContext *s)
+{
+    const AVPixFmtDescriptor *desc;
+    GetBitContext *gb = &s->HEVClc.gb;
+    int ret    = 0;
+    int sps_id = 0;
+    int log2_diff_max_min_transform_block_size;
+    int bit_depth_chroma, start, vui_present, sublayer_ordering_info;
+    int i;
+
+    HEVCSPS *sps;
+    AVBufferRef *sps_buf = av_buffer_allocz(sizeof(*sps));
+
+    if (!sps_buf)
+        return AVERROR(ENOMEM);
+    sps = (HEVCSPS*)sps_buf->data;
+
+    av_log(s->avctx, AV_LOG_DEBUG, "Decoding SPS\n");
+
+    // Coded parameters
+
+    sps->vps_id = get_bits(gb, 4);
+    if (sps->vps_id >= MAX_VPS_COUNT) {
+        av_log(s->avctx, AV_LOG_ERROR, "VPS id out of range: %d\n", sps->vps_id);
+        ret = AVERROR_INVALIDDATA;
+        goto err;
+    }
+
+    sps->max_sub_layers = get_bits(gb, 3) + 1;
+    if (sps->max_sub_layers > MAX_SUB_LAYERS) {
+        av_log(s->avctx, AV_LOG_ERROR, "sps_max_sub_layers out of range: %d\n",
+               sps->max_sub_layers);
+        ret = AVERROR_INVALIDDATA;
+        goto err;
+    }
+
+    skip_bits1(gb); // temporal_id_nesting_flag
+    if (decode_profile_tier_level(&s->HEVClc, &sps->ptl,
+                                  sps->max_sub_layers) < 0) {
+        av_log(s->avctx, AV_LOG_ERROR, "error decoding profile tier level\n");
+        ret = AVERROR_INVALIDDATA;
+        goto err;
+    }
+    sps_id = get_ue_golomb_long(gb);
+    if (sps_id >= MAX_SPS_COUNT) {
+        av_log(s->avctx, AV_LOG_ERROR, "SPS id out of range: %d\n", sps_id);
+        ret = AVERROR_INVALIDDATA;
+        goto err;
+    }
+
+    sps->chroma_format_idc = get_ue_golomb_long(gb);
+    if (sps->chroma_format_idc != 1) {
+        avpriv_report_missing_feature(s->avctx, "chroma_format_idc != 1\n");
+        ret = AVERROR_PATCHWELCOME;
+        goto err;
+    }
+
+    if (sps->chroma_format_idc == 3)
+        sps->separate_colour_plane_flag = get_bits1(gb);
+
+    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, s->avctx)) < 0)
+        goto err;
+
+    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 (s->avctx->flags2 & CODEC_FLAG2_IGNORE_CROP) {
+            av_log(s->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 (bit_depth_chroma != sps->bit_depth) {
+        av_log(s->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);
+        ret = AVERROR_INVALIDDATA;
+        goto err;
+    }
+
+    if (sps->chroma_format_idc == 1) {
+        switch (sps->bit_depth) {
+        case 8:  sps->pix_fmt = AV_PIX_FMT_YUV420P;   break;
+        case 9:  sps->pix_fmt = AV_PIX_FMT_YUV420P9;  break;
+        case 10: sps->pix_fmt = AV_PIX_FMT_YUV420P10; break;
+        default:
+            av_log(s->avctx, AV_LOG_ERROR, "Unsupported bit depth: %d\n",
+                   sps->bit_depth);
+            ret = AVERROR_PATCHWELCOME;
+            goto err;
+        }
+    } else {
+        av_log(s->avctx, AV_LOG_ERROR,
+               "non-4:2:0 support is currently unspecified.\n");
+        return AVERROR_PATCHWELCOME;
+    }
+
+    desc = av_pix_fmt_desc_get(sps->pix_fmt);
+    if (!desc) {
+        ret = AVERROR(EINVAL);
+        goto err;
+    }
+
+    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;
+
+    sps->log2_max_poc_lsb = get_ue_golomb_long(gb) + 4;
+    if (sps->log2_max_poc_lsb > 16) {
+        av_log(s->avctx, AV_LOG_ERROR, "log2_max_pic_order_cnt_lsb_minus4 out range: %d\n",
+               sps->log2_max_poc_lsb - 4);
+        ret = AVERROR_INVALIDDATA;
+        goto err;
+    }
+
+    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(s->avctx, AV_LOG_ERROR, "sps_max_dec_pic_buffering_minus1 out of range: %d\n",
+                   sps->temporal_layer[i].max_dec_pic_buffering - 1);
+            ret = AVERROR_INVALIDDATA;
+            goto err;
+        }
+        if (sps->temporal_layer[i].num_reorder_pics > sps->temporal_layer[i].max_dec_pic_buffering - 1) {
+            av_log(s->avctx, AV_LOG_ERROR, "sps_max_num_reorder_pics out of range: %d\n",
+                   sps->temporal_layer[i].num_reorder_pics);
+            ret = AVERROR_INVALIDDATA;
+            goto err;
+        }
+    }
+
+    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_tb_size >= sps->log2_min_cb_size) {
+        av_log(s->avctx, AV_LOG_ERROR, "Invalid value for log2_min_tb_size");
+        ret = AVERROR_INVALIDDATA;
+        goto err;
+    }
+    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(s, &sps->scaling_list);
+            if (ret < 0)
+                goto err;
+        }
+    }
+
+    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) {
+        int pcm_bit_depth_chroma;
+        sps->pcm.bit_depth   = get_bits(gb, 4) + 1;
+        pcm_bit_depth_chroma = get_bits(gb, 4) + 1;
+        if (pcm_bit_depth_chroma != sps->pcm.bit_depth) {
+            av_log(s->avctx, AV_LOG_ERROR,
+                   "PCM Luma bit depth (%d) is different from PCM chroma"
+                   "bit depth (%d), this is unsupported.\n",
+                   sps->pcm.bit_depth, pcm_bit_depth_chroma);
+            ret = AVERROR_INVALIDDATA;
+            goto err;
+        }
+
+        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(s->avctx, AV_LOG_ERROR,
+                   "PCM bit depth (%d) is greater than normal bit depth (%d)\n",
+                   sps->pcm.bit_depth, sps->bit_depth);
+            ret = AVERROR_INVALIDDATA;
+            goto err;
+        }
+
+        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(s->avctx, AV_LOG_ERROR, "Too many short term RPS: %d.\n",
+               sps->nb_st_rps);
+        ret = AVERROR_INVALIDDATA;
+        goto err;
+    }
+    for (i = 0; i < sps->nb_st_rps; i++) {
+        if ((ret = ff_hevc_decode_short_term_rps(s, &sps->st_rps[i],
+                                                 sps, 0)) < 0)
+            goto err;
+    }
+
+    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);
+        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(s, sps);
+    skip_bits1(gb); // sps_extension_flag
+
+    if (s->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)) &&
+        !(s->avctx->flags & CODEC_FLAG_UNALIGNED)) {
+        sps->output_window.left_offset &= ~(0x1F >> (sps->pixel_shift));
+        av_log(s->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->output_width <= 0 || sps->output_height <= 0) {
+        av_log(s->avctx, AV_LOG_WARNING, "Invalid visible frame dimensions: %dx%d.\n",
+               sps->output_width, sps->output_height);
+        if (s->avctx->err_recognition & AV_EF_EXPLODE) {
+            ret = AVERROR_INVALIDDATA;
+            goto err;
+        }
+        av_log(s->avctx, AV_LOG_WARNING,
+               "Displaying the whole video surface.\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 = 0;
+        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;
+
+    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->qp_bd_offset = 6 * (sps->bit_depth - 8);
+
+    if (sps->width  & ((1 << sps->log2_min_cb_size) - 1) ||
+        sps->height & ((1 << sps->log2_min_cb_size) - 1)) {
+        av_log(s->avctx, AV_LOG_ERROR, "Invalid coded frame dimensions.\n");
+        goto err;
+    }
+
+    if (sps->log2_ctb_size > MAX_LOG2_CTB_SIZE) {
+        av_log(s->avctx, AV_LOG_ERROR, "CTB size out of range: 2^%d\n", sps->log2_ctb_size);
+        goto err;
+    }
+    if (sps->max_transform_hierarchy_depth_inter > sps->log2_ctb_size - sps->log2_min_tb_size) {
+        av_log(s->avctx, AV_LOG_ERROR, "max_transform_hierarchy_depth_inter out of range: %d\n",
+               sps->max_transform_hierarchy_depth_inter);
+        goto err;
+    }
+    if (sps->max_transform_hierarchy_depth_intra > sps->log2_ctb_size - sps->log2_min_tb_size) {
+        av_log(s->avctx, AV_LOG_ERROR, "max_transform_hierarchy_depth_intra out of range: %d\n",
+               sps->max_transform_hierarchy_depth_intra);
+        goto err;
+    }
+    if (sps->log2_max_trafo_size > FFMIN(sps->log2_ctb_size, 5)) {
+        av_log(s->avctx, AV_LOG_ERROR,
+               "max transform block size out of range: %d\n",
+               sps->log2_max_trafo_size);
+        goto err;
+    }
+
+    if (s->avctx->debug & FF_DEBUG_BITSTREAM) {
+        av_log(s->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 (s->sps_list[sps_id] &&
+        !memcmp(s->sps_list[sps_id]->data, sps_buf->data, sps_buf->size)) {
+        av_buffer_unref(&sps_buf);
+    } else {
+        for (i = 0; i < FF_ARRAY_ELEMS(s->pps_list); i++) {
+            if (s->pps_list[i] && ((HEVCPPS*)s->pps_list[i]->data)->sps_id == sps_id)
+                av_buffer_unref(&s->pps_list[i]);
+        }
+        av_buffer_unref(&s->sps_list[sps_id]);
+        s->sps_list[sps_id] = sps_buf;
+    }
+
+    return 0;
+
+err:
+    av_buffer_unref(&sps_buf);
+    return ret;
+}
+
+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_cb_addr_zs);
+    av_freep(&pps->min_tb_addr_zs);
+
+    av_freep(&pps);
+}
+
+int ff_hevc_decode_nal_pps(HEVCContext *s)
+{
+    GetBitContext *gb = &s->HEVClc.gb;
+    HEVCSPS      *sps = NULL;
+    int pic_area_in_ctbs, pic_area_in_min_cbs, pic_area_in_min_tbs;
+    int log2_diff_ctb_min_tb_size;
+    int i, j, x, y, ctb_addr_rs, tile_id;
+    int ret    = 0;
+    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(s->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;
+
+    // Coded parameters
+    pps_id = get_ue_golomb_long(gb);
+    if (pps_id >= MAX_PPS_COUNT) {
+        av_log(s->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(s->avctx, AV_LOG_ERROR, "SPS id out of range: %d\n", pps->sps_id);
+        ret = AVERROR_INVALIDDATA;
+        goto err;
+    }
+    if (!s->sps_list[pps->sps_id]) {
+        av_log(s->avctx, AV_LOG_ERROR, "SPS does not exist \n");
+        ret = AVERROR_INVALIDDATA;
+        goto err;
+    }
+    sps = (HEVCSPS *)s->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);
+
+    pps->cb_qp_offset = get_se_golomb(gb);
+    if (pps->cb_qp_offset < -12 || pps->cb_qp_offset > 12) {
+        av_log(s->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(s->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(s->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(s->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) {
+            int 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(s->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(s->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(s->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(s->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(s, &pps->scaling_list);
+        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(s->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);
+    skip_bits1(gb);     // pps_extension_flag
+
+    // 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) {
+        ret = AVERROR(ENOMEM);
+        goto err;
+    }
+
+    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) {
+            ret = AVERROR(ENOMEM);
+            goto err;
+        }
+
+        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;
+    pic_area_in_min_cbs  = sps->min_cb_width * sps->min_cb_height;
+    pic_area_in_min_tbs  = sps->min_tb_width * sps->min_tb_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_cb_addr_zs    = av_malloc_array(pic_area_in_min_cbs, sizeof(*pps->min_cb_addr_zs));
+    pps->min_tb_addr_zs    = av_malloc_array(pic_area_in_min_tbs, sizeof(*pps->min_tb_addr_zs));
+    if (!pps->ctb_addr_rs_to_ts || !pps->ctb_addr_ts_to_rs ||
+        !pps->tile_id || !pps->min_cb_addr_zs || !pps->min_tb_addr_zs) {
+        ret = AVERROR(ENOMEM);
+        goto err;
+    }
+
+    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) {
+        ret = AVERROR(ENOMEM);
+        goto err;
+    }
+
+    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];
+
+    for (y = 0; y < sps->min_cb_height; y++) {
+        for (x = 0; x < sps->min_cb_width; x++) {
+            int tb_x        = x >> sps->log2_diff_max_min_coding_block_size;
+            int tb_y        = y >> sps->log2_diff_max_min_coding_block_size;
+            int ctb_addr_rs = sps->ctb_width * tb_y + tb_x;
+            int val         = pps->ctb_addr_rs_to_ts[ctb_addr_rs] <<
+                              (sps->log2_diff_max_min_coding_block_size * 2);
+            for (i = 0; i < sps->log2_diff_max_min_coding_block_size; i++) {
+                int m = 1 << i;
+                val += (m & x ? m * m : 0) + (m & y ? 2 * m * m : 0);
+            }
+            pps->min_cb_addr_zs[y * sps->min_cb_width + x] = val;
+        }
+    }
+
+    log2_diff_ctb_min_tb_size = sps->log2_ctb_size - sps->log2_min_tb_size;
+    for (y = 0; y < sps->min_tb_height; y++) {
+        for (x = 0; x < sps->min_tb_width; x++) {
+            int tb_x        = x >> log2_diff_ctb_min_tb_size;
+            int tb_y        = y >> log2_diff_ctb_min_tb_size;
+            int ctb_addr_rs = sps->ctb_width * tb_y + tb_x;
+            int val         = pps->ctb_addr_rs_to_ts[ctb_addr_rs] <<
+                              (log2_diff_ctb_min_tb_size * 2);
+            for (i = 0; i < log2_diff_ctb_min_tb_size; i++) {
+                int m = 1 << i;
+                val += (m & x ? m * m : 0) + (m & y ? 2 * m * m : 0);
+            }
+            pps->min_tb_addr_zs[y * sps->min_tb_width + x] = val;
+        }
+    }
+
+    av_buffer_unref(&s->pps_list[pps_id]);
+    s->pps_list[pps_id] = pps_buf;
+
+    return 0;
+
+err:
+    av_buffer_unref(&pps_buf);
+    return ret;
+}