1781 lines
67 KiB
C
Executable File
1781 lines
67 KiB
C
Executable File
/*
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* HEVC Parameter Set decoding
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*
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* Copyright (C) 2012 - 2103 Guillaume Martres
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* Copyright (C) 2012 - 2103 Mickael Raulet
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* Copyright (C) 2012 - 2013 Gildas Cocherel
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* Copyright (C) 2013 Vittorio Giovara
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "libavutil/imgutils.h"
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#include "golomb.h"
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#include "hevc_data.h"
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#include "hevc_ps.h"
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static const uint8_t default_scaling_list_intra[] = {
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16, 16, 16, 16, 17, 18, 21, 24,
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16, 16, 16, 16, 17, 19, 22, 25,
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16, 16, 17, 18, 20, 22, 25, 29,
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16, 16, 18, 21, 24, 27, 31, 36,
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17, 17, 20, 24, 30, 35, 41, 47,
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18, 19, 22, 27, 35, 44, 54, 65,
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21, 22, 25, 31, 41, 54, 70, 88,
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24, 25, 29, 36, 47, 65, 88, 115
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};
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static const uint8_t default_scaling_list_inter[] = {
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16, 16, 16, 16, 17, 18, 20, 24,
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16, 16, 16, 17, 18, 20, 24, 25,
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16, 16, 17, 18, 20, 24, 25, 28,
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16, 17, 18, 20, 24, 25, 28, 33,
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17, 18, 20, 24, 25, 28, 33, 41,
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18, 20, 24, 25, 28, 33, 41, 54,
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20, 24, 25, 28, 33, 41, 54, 71,
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24, 25, 28, 33, 41, 54, 71, 91
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};
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static const AVRational vui_sar[] = {
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{ 0, 1 },
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{ 1, 1 },
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{ 12, 11 },
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{ 10, 11 },
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{ 16, 11 },
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{ 40, 33 },
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{ 24, 11 },
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{ 20, 11 },
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{ 32, 11 },
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{ 80, 33 },
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{ 18, 11 },
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{ 15, 11 },
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{ 64, 33 },
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{ 160, 99 },
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{ 4, 3 },
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{ 3, 2 },
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{ 2, 1 },
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};
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static const uint8_t hevc_sub_width_c[] = {
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1, 2, 2, 1
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};
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static const uint8_t hevc_sub_height_c[] = {
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1, 2, 1, 1
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};
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static void remove_pps(HEVCParamSets *s, int id)
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{
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if (s->pps_list[id] && s->pps == (const HEVCPPS*)s->pps_list[id]->data)
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s->pps = NULL;
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av_buffer_unref(&s->pps_list[id]);
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}
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static void remove_sps(HEVCParamSets *s, int id)
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{
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int i;
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if (s->sps_list[id]) {
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if (s->sps == (const HEVCSPS*)s->sps_list[id]->data)
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s->sps = NULL;
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/* drop all PPS that depend on this SPS */
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for (i = 0; i < FF_ARRAY_ELEMS(s->pps_list); i++)
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if (s->pps_list[i] && ((HEVCPPS*)s->pps_list[i]->data)->sps_id == id)
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remove_pps(s, i);
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av_assert0(!(s->sps_list[id] && s->sps == (HEVCSPS*)s->sps_list[id]->data));
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}
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av_buffer_unref(&s->sps_list[id]);
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}
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static void remove_vps(HEVCParamSets *s, int id)
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{
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int i;
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if (s->vps_list[id]) {
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if (s->vps == (const HEVCVPS*)s->vps_list[id]->data)
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s->vps = NULL;
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for (i = 0; i < FF_ARRAY_ELEMS(s->sps_list); i++)
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if (s->sps_list[i] && ((HEVCSPS*)s->sps_list[i]->data)->vps_id == id)
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remove_sps(s, i);
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}
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av_buffer_unref(&s->vps_list[id]);
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}
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int ff_hevc_decode_short_term_rps(GetBitContext *gb, AVCodecContext *avctx,
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ShortTermRPS *rps, const HEVCSPS *sps, int is_slice_header)
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{
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uint8_t rps_predict = 0;
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int delta_poc;
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int k0 = 0;
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int k1 = 0;
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int k = 0;
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int i;
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if (rps != sps->st_rps && sps->nb_st_rps)
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rps_predict = get_bits1(gb);
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if (rps_predict) {
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const ShortTermRPS *rps_ridx;
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int delta_rps;
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unsigned abs_delta_rps;
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uint8_t use_delta_flag = 0;
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uint8_t delta_rps_sign;
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if (is_slice_header) {
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unsigned int delta_idx = get_ue_golomb_long(gb) + 1;
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if (delta_idx > sps->nb_st_rps) {
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av_log(avctx, AV_LOG_ERROR,
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"Invalid value of delta_idx in slice header RPS: %d > %d.\n",
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delta_idx, sps->nb_st_rps);
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return AVERROR_INVALIDDATA;
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}
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rps_ridx = &sps->st_rps[sps->nb_st_rps - delta_idx];
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rps->rps_idx_num_delta_pocs = rps_ridx->num_delta_pocs;
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} else
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rps_ridx = &sps->st_rps[rps - sps->st_rps - 1];
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delta_rps_sign = get_bits1(gb);
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abs_delta_rps = get_ue_golomb_long(gb) + 1;
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if (abs_delta_rps < 1 || abs_delta_rps > 32768) {
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av_log(avctx, AV_LOG_ERROR,
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"Invalid value of abs_delta_rps: %d\n",
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abs_delta_rps);
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return AVERROR_INVALIDDATA;
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}
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delta_rps = (1 - (delta_rps_sign << 1)) * abs_delta_rps;
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for (i = 0; i <= rps_ridx->num_delta_pocs; i++) {
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int used = rps->used[k] = get_bits1(gb);
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if (!used)
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use_delta_flag = get_bits1(gb);
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if (used || use_delta_flag) {
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if (i < rps_ridx->num_delta_pocs)
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delta_poc = delta_rps + rps_ridx->delta_poc[i];
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else
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delta_poc = delta_rps;
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rps->delta_poc[k] = delta_poc;
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if (delta_poc < 0)
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k0++;
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else
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k1++;
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k++;
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}
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}
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if (k >= FF_ARRAY_ELEMS(rps->used)) {
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av_log(avctx, AV_LOG_ERROR,
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"Invalid num_delta_pocs: %d\n", k);
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return AVERROR_INVALIDDATA;
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}
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rps->num_delta_pocs = k;
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rps->num_negative_pics = k0;
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// sort in increasing order (smallest first)
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if (rps->num_delta_pocs != 0) {
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int used, tmp;
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for (i = 1; i < rps->num_delta_pocs; i++) {
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delta_poc = rps->delta_poc[i];
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used = rps->used[i];
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for (k = i - 1; k >= 0; k--) {
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tmp = rps->delta_poc[k];
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if (delta_poc < tmp) {
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rps->delta_poc[k + 1] = tmp;
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rps->used[k + 1] = rps->used[k];
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rps->delta_poc[k] = delta_poc;
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rps->used[k] = used;
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}
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}
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}
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}
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if ((rps->num_negative_pics >> 1) != 0) {
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int used;
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k = rps->num_negative_pics - 1;
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// flip the negative values to largest first
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for (i = 0; i < rps->num_negative_pics >> 1; i++) {
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delta_poc = rps->delta_poc[i];
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used = rps->used[i];
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rps->delta_poc[i] = rps->delta_poc[k];
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rps->used[i] = rps->used[k];
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rps->delta_poc[k] = delta_poc;
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rps->used[k] = used;
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k--;
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}
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}
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} else {
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unsigned int prev, nb_positive_pics;
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rps->num_negative_pics = get_ue_golomb_long(gb);
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nb_positive_pics = get_ue_golomb_long(gb);
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if (rps->num_negative_pics >= HEVC_MAX_REFS ||
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nb_positive_pics >= HEVC_MAX_REFS) {
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av_log(avctx, AV_LOG_ERROR, "Too many refs in a short term RPS.\n");
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return AVERROR_INVALIDDATA;
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}
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rps->num_delta_pocs = rps->num_negative_pics + nb_positive_pics;
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if (rps->num_delta_pocs) {
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prev = 0;
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for (i = 0; i < rps->num_negative_pics; i++) {
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delta_poc = get_ue_golomb_long(gb) + 1;
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if (delta_poc < 1 || delta_poc > 32768) {
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av_log(avctx, AV_LOG_ERROR,
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"Invalid value of delta_poc: %d\n",
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delta_poc);
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return AVERROR_INVALIDDATA;
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}
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prev -= delta_poc;
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rps->delta_poc[i] = prev;
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rps->used[i] = get_bits1(gb);
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}
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prev = 0;
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for (i = 0; i < nb_positive_pics; i++) {
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delta_poc = get_ue_golomb_long(gb) + 1;
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if (delta_poc < 1 || delta_poc > 32768) {
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av_log(avctx, AV_LOG_ERROR,
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"Invalid value of delta_poc: %d\n",
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delta_poc);
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return AVERROR_INVALIDDATA;
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}
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prev += delta_poc;
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rps->delta_poc[rps->num_negative_pics + i] = prev;
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rps->used[rps->num_negative_pics + i] = get_bits1(gb);
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}
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}
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}
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return 0;
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}
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static int decode_profile_tier_level(GetBitContext *gb, AVCodecContext *avctx,
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PTLCommon *ptl)
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{
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int i;
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if (get_bits_left(gb) < 2+1+5 + 32 + 4 + 43 + 1)
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return -1;
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ptl->profile_space = get_bits(gb, 2);
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ptl->tier_flag = get_bits1(gb);
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ptl->profile_idc = get_bits(gb, 5);
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if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN)
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av_log(avctx, AV_LOG_DEBUG, "Main profile bitstream\n");
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else if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN_10)
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av_log(avctx, AV_LOG_DEBUG, "Main 10 profile bitstream\n");
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else if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN_STILL_PICTURE)
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av_log(avctx, AV_LOG_DEBUG, "Main Still Picture profile bitstream\n");
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else if (ptl->profile_idc == FF_PROFILE_HEVC_REXT)
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av_log(avctx, AV_LOG_DEBUG, "Range Extension profile bitstream\n");
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else
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av_log(avctx, AV_LOG_WARNING, "Unknown HEVC profile: %d\n", ptl->profile_idc);
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for (i = 0; i < 32; i++) {
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ptl->profile_compatibility_flag[i] = get_bits1(gb);
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if (ptl->profile_idc == 0 && i > 0 && ptl->profile_compatibility_flag[i])
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ptl->profile_idc = i;
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}
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ptl->progressive_source_flag = get_bits1(gb);
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ptl->interlaced_source_flag = get_bits1(gb);
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ptl->non_packed_constraint_flag = get_bits1(gb);
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ptl->frame_only_constraint_flag = get_bits1(gb);
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#define check_profile_idc(idc) \
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ptl->profile_idc == idc || ptl->profile_compatibility_flag[idc]
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if (check_profile_idc(4) || check_profile_idc(5) || check_profile_idc(6) ||
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check_profile_idc(7) || check_profile_idc(8) || check_profile_idc(9) ||
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check_profile_idc(10)) {
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ptl->max_12bit_constraint_flag = get_bits1(gb);
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ptl->max_10bit_constraint_flag = get_bits1(gb);
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ptl->max_8bit_constraint_flag = get_bits1(gb);
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ptl->max_422chroma_constraint_flag = get_bits1(gb);
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ptl->max_420chroma_constraint_flag = get_bits1(gb);
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ptl->max_monochrome_constraint_flag = get_bits1(gb);
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ptl->intra_constraint_flag = get_bits1(gb);
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ptl->one_picture_only_constraint_flag = get_bits1(gb);
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ptl->lower_bit_rate_constraint_flag = get_bits1(gb);
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if (check_profile_idc(5) || check_profile_idc(9) || check_profile_idc(10)) {
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ptl->max_14bit_constraint_flag = get_bits1(gb);
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skip_bits_long(gb, 33); // XXX_reserved_zero_33bits[0..32]
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} else {
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skip_bits_long(gb, 34); // XXX_reserved_zero_34bits[0..33]
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}
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} else if (check_profile_idc(2)) {
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skip_bits(gb, 7);
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ptl->one_picture_only_constraint_flag = get_bits1(gb);
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skip_bits_long(gb, 35); // XXX_reserved_zero_35bits[0..34]
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} else {
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skip_bits_long(gb, 43); // XXX_reserved_zero_43bits[0..42]
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}
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if (check_profile_idc(1) || check_profile_idc(2) || check_profile_idc(3) ||
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check_profile_idc(4) || check_profile_idc(5) || check_profile_idc(9))
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ptl->inbld_flag = get_bits1(gb);
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else
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skip_bits1(gb);
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#undef check_profile_idc
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return 0;
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}
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static int parse_ptl(GetBitContext *gb, AVCodecContext *avctx,
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PTL *ptl, int max_num_sub_layers)
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{
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int i;
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if (decode_profile_tier_level(gb, avctx, &ptl->general_ptl) < 0 ||
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get_bits_left(gb) < 8 + (8*2 * (max_num_sub_layers - 1 > 0))) {
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av_log(avctx, AV_LOG_ERROR, "PTL information too short\n");
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return -1;
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}
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ptl->general_ptl.level_idc = get_bits(gb, 8);
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for (i = 0; i < max_num_sub_layers - 1; i++) {
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ptl->sub_layer_profile_present_flag[i] = get_bits1(gb);
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ptl->sub_layer_level_present_flag[i] = get_bits1(gb);
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}
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if (max_num_sub_layers - 1> 0)
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for (i = max_num_sub_layers - 1; i < 8; i++)
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skip_bits(gb, 2); // reserved_zero_2bits[i]
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for (i = 0; i < max_num_sub_layers - 1; i++) {
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if (ptl->sub_layer_profile_present_flag[i] &&
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decode_profile_tier_level(gb, avctx, &ptl->sub_layer_ptl[i]) < 0) {
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av_log(avctx, AV_LOG_ERROR,
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"PTL information for sublayer %i too short\n", i);
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return -1;
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}
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if (ptl->sub_layer_level_present_flag[i]) {
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if (get_bits_left(gb) < 8) {
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av_log(avctx, AV_LOG_ERROR,
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"Not enough data for sublayer %i level_idc\n", i);
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return -1;
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} else
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ptl->sub_layer_ptl[i].level_idc = get_bits(gb, 8);
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}
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}
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return 0;
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}
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static void decode_sublayer_hrd(GetBitContext *gb, unsigned int nb_cpb,
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int subpic_params_present)
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{
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int i;
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for (i = 0; i < nb_cpb; i++) {
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get_ue_golomb_long(gb); // bit_rate_value_minus1
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get_ue_golomb_long(gb); // cpb_size_value_minus1
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if (subpic_params_present) {
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get_ue_golomb_long(gb); // cpb_size_du_value_minus1
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get_ue_golomb_long(gb); // bit_rate_du_value_minus1
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}
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skip_bits1(gb); // cbr_flag
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}
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}
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static int decode_hrd(GetBitContext *gb, int common_inf_present,
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int max_sublayers)
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{
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int nal_params_present = 0, vcl_params_present = 0;
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int subpic_params_present = 0;
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int i;
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if (common_inf_present) {
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nal_params_present = get_bits1(gb);
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vcl_params_present = get_bits1(gb);
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if (nal_params_present || vcl_params_present) {
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subpic_params_present = get_bits1(gb);
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if (subpic_params_present) {
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skip_bits(gb, 8); // tick_divisor_minus2
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skip_bits(gb, 5); // du_cpb_removal_delay_increment_length_minus1
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skip_bits(gb, 1); // sub_pic_cpb_params_in_pic_timing_sei_flag
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skip_bits(gb, 5); // dpb_output_delay_du_length_minus1
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}
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skip_bits(gb, 4); // bit_rate_scale
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skip_bits(gb, 4); // cpb_size_scale
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if (subpic_params_present)
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skip_bits(gb, 4); // cpb_size_du_scale
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skip_bits(gb, 5); // initial_cpb_removal_delay_length_minus1
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skip_bits(gb, 5); // au_cpb_removal_delay_length_minus1
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skip_bits(gb, 5); // dpb_output_delay_length_minus1
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}
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}
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for (i = 0; i < max_sublayers; i++) {
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int low_delay = 0;
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unsigned int nb_cpb = 1;
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int fixed_rate = get_bits1(gb);
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if (!fixed_rate)
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fixed_rate = get_bits1(gb);
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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;
|
|
ptrdiff_t nal_size;
|
|
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");
|
|
|
|
nal_size = gb->buffer_end - gb->buffer;
|
|
if (nal_size > sizeof(vps->data)) {
|
|
av_log(avctx, AV_LOG_WARNING, "Truncating likely oversized VPS "
|
|
"(%"PTRDIFF_SPECIFIER" > %"SIZE_SPECIFIER")\n",
|
|
nal_size, sizeof(vps->data));
|
|
vps->data_size = sizeof(vps->data);
|
|
} else {
|
|
vps->data_size = nal_size;
|
|
}
|
|
memcpy(vps->data, gb->buffer, vps->data_size);
|
|
|
|
vps_id = get_bits(gb, 4);
|
|
|
|
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 > HEVC_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] > HEVC_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 backup_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 (!av_color_primaries_name(vui->colour_primaries))
|
|
vui->colour_primaries = AVCOL_PRI_UNSPECIFIED;
|
|
if (!av_color_transfer_name(vui->transfer_characteristic))
|
|
vui->transfer_characteristic = AVCOL_TRC_UNSPECIFIED;
|
|
if (!av_color_space_name(vui->matrix_coeffs))
|
|
vui->matrix_coeffs = AVCOL_SPC_UNSPECIFIED;
|
|
if (vui->matrix_coeffs == AVCOL_SPC_RGB) {
|
|
switch (sps->pix_fmt) {
|
|
case AV_PIX_FMT_YUV444P:
|
|
sps->pix_fmt = AV_PIX_FMT_GBRP;
|
|
break;
|
|
case AV_PIX_FMT_YUV444P10:
|
|
sps->pix_fmt = AV_PIX_FMT_GBRP10;
|
|
break;
|
|
case AV_PIX_FMT_YUV444P12:
|
|
sps->pix_fmt = AV_PIX_FMT_GBRP12;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
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);
|
|
|
|
// Backup context in case an alternate header is detected
|
|
memcpy(&backup, gb, sizeof(backup));
|
|
memcpy(&backup_vui, vui, sizeof(backup_vui));
|
|
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);
|
|
|
|
if (vui->default_display_window_flag) {
|
|
int vert_mult = hevc_sub_height_c[sps->chroma_format_idc];
|
|
int horiz_mult = hevc_sub_width_c[sps->chroma_format_idc];
|
|
vui->def_disp_win.left_offset = get_ue_golomb_long(gb) * horiz_mult;
|
|
vui->def_disp_win.right_offset = get_ue_golomb_long(gb) * horiz_mult;
|
|
vui->def_disp_win.top_offset = get_ue_golomb_long(gb) * vert_mult;
|
|
vui->def_disp_win.bottom_offset = get_ue_golomb_long(gb) * vert_mult;
|
|
|
|
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;
|
|
}
|
|
}
|
|
|
|
timing_info:
|
|
vui->vui_timing_info_present_flag = get_bits1(gb);
|
|
|
|
if (vui->vui_timing_info_present_flag) {
|
|
if( get_bits_left(gb) < 66 && !alt) {
|
|
// 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");
|
|
memcpy(vui, &backup_vui, sizeof(backup_vui));
|
|
memcpy(gb, &backup, sizeof(backup));
|
|
alt = 1;
|
|
goto timing_info;
|
|
}
|
|
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 %"PRIu32"/%"PRIu32" 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) {
|
|
if (get_bits_left(gb) < 8 && !alt) {
|
|
av_log(avctx, AV_LOG_WARNING,
|
|
"Strange VUI bitstream restriction information, retrying"
|
|
" from timing information...\n");
|
|
memcpy(vui, &backup_vui, sizeof(backup_vui));
|
|
memcpy(gb, &backup, sizeof(backup));
|
|
alt = 1;
|
|
goto timing_info;
|
|
}
|
|
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);
|
|
}
|
|
|
|
if (get_bits_left(gb) < 1 && !alt) {
|
|
// XXX: Alternate syntax when sps_range_extension_flag != 0?
|
|
av_log(avctx, AV_LOG_WARNING,
|
|
"Overread in VUI, retrying from timing information...\n");
|
|
memcpy(vui, &backup_vui, sizeof(backup_vui));
|
|
memcpy(gb, &backup, sizeof(backup));
|
|
alt = 1;
|
|
goto timing_info;
|
|
}
|
|
}
|
|
|
|
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.
|
|
delta *= (size_id == 3) ? 3 : 1;
|
|
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 + 256U + scaling_list_delta_coef) % 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_GRAY9;
|
|
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_GRAY10;
|
|
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_GRAY12;
|
|
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,
|
|
"The following bit-depths are currently specified: 8, 9, 10 and 12 bits, "
|
|
"chroma_format_idc is %d, depth is %d\n",
|
|
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)
|
|
{
|
|
HEVCWindow *ow;
|
|
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 (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 > HEVC_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;
|
|
}
|
|
|
|
sps->temporal_id_nesting_flag = get_bits(gb, 1);
|
|
|
|
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 >= HEVC_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
|
|
int vert_mult = hevc_sub_height_c[sps->chroma_format_idc];
|
|
int horiz_mult = hevc_sub_width_c[sps->chroma_format_idc];
|
|
sps->pic_conf_win.left_offset = get_ue_golomb_long(gb) * horiz_mult;
|
|
sps->pic_conf_win.right_offset = get_ue_golomb_long(gb) * horiz_mult;
|
|
sps->pic_conf_win.top_offset = get_ue_golomb_long(gb) * vert_mult;
|
|
sps->pic_conf_win.bottom_offset = get_ue_golomb_long(gb) * vert_mult;
|
|
|
|
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;
|
|
}
|
|
sps->bit_depth_chroma = bit_depth_chroma;
|
|
|
|
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 > (unsigned)HEVC_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 - 1U);
|
|
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 > HEVC_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 (FFMAX(sps->pcm.bit_depth, sps->pcm.bit_depth_chroma) > sps->bit_depth) {
|
|
av_log(avctx, AV_LOG_ERROR,
|
|
"PCM bit depth (%d, %d) is greater than normal bit depth (%d)\n",
|
|
sps->pcm.bit_depth, sps->pcm.bit_depth_chroma, 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 > HEVC_MAX_SHORT_TERM_REF_PIC_SETS) {
|
|
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 > HEVC_MAX_LONG_TERM_REF_PICS) {
|
|
av_log(avctx, AV_LOG_ERROR, "Too many long term ref pics: %d.\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
|
|
sps->sps_range_extension_flag = get_bits1(gb);
|
|
skip_bits(gb, 7); //sps_extension_7bits = get_bits(gb, 7);
|
|
if (sps->sps_range_extension_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);
|
|
|
|
sps->extended_precision_processing_flag = get_bits1(gb);
|
|
if (sps->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);
|
|
sps->high_precision_offsets_enabled_flag = get_bits1(gb);
|
|
if (sps->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);
|
|
|
|
sps->cabac_bypass_alignment_enabled_flag = get_bits1(gb);
|
|
if (sps->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;
|
|
}
|
|
|
|
ow = &sps->output_window;
|
|
if (ow->left_offset >= INT_MAX - ow->right_offset ||
|
|
ow->top_offset >= INT_MAX - ow->bottom_offset ||
|
|
ow->left_offset + ow->right_offset >= sps->width ||
|
|
ow->top_offset + ow->bottom_offset >= sps->height) {
|
|
av_log(avctx, AV_LOG_WARNING, "Invalid cropping offsets: %u/%u/%u/%u\n",
|
|
ow->left_offset, ow->right_offset, ow->top_offset, ow->bottom_offset);
|
|
if (avctx->err_recognition & AV_EF_EXPLODE) {
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
av_log(avctx, AV_LOG_WARNING,
|
|
"Displaying the whole video surface.\n");
|
|
memset(ow, 0, sizeof(*ow));
|
|
memset(&sps->pic_conf_win, 0, sizeof(sps->pic_conf_win));
|
|
}
|
|
|
|
// 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 > HEVC_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;
|
|
ptrdiff_t nal_size;
|
|
|
|
if (!sps_buf)
|
|
return AVERROR(ENOMEM);
|
|
sps = (HEVCSPS*)sps_buf->data;
|
|
|
|
av_log(avctx, AV_LOG_DEBUG, "Decoding SPS\n");
|
|
|
|
nal_size = gb->buffer_end - gb->buffer;
|
|
if (nal_size > sizeof(sps->data)) {
|
|
av_log(avctx, AV_LOG_WARNING, "Truncating likely oversized SPS "
|
|
"(%"PTRDIFF_SPECIFIER" > %"SIZE_SPECIFIER")\n",
|
|
nal_size, sizeof(sps->data));
|
|
sps->data_size = sizeof(sps->data);
|
|
} else {
|
|
sps->data_size = nal_size;
|
|
}
|
|
memcpy(sps->data, gb->buffer, sps->data_size);
|
|
|
|
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->width - (sps->output_window.left_offset + sps->output_window.right_offset),
|
|
sps->height - (sps->output_window.top_offset + sps->output_window.bottom_offset),
|
|
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 > 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);
|
|
|
|
if ( pps->log2_sao_offset_scale_luma > FFMAX(sps->bit_depth - 10, 0)
|
|
|| pps->log2_sao_offset_scale_chroma > FFMAX(sps->bit_depth_chroma - 10, 0)
|
|
)
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
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;
|
|
ptrdiff_t nal_size;
|
|
unsigned log2_parallel_merge_level_minus2;
|
|
|
|
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");
|
|
|
|
nal_size = gb->buffer_end - gb->buffer;
|
|
if (nal_size > sizeof(pps->data)) {
|
|
av_log(avctx, AV_LOG_WARNING, "Truncating likely oversized PPS "
|
|
"(%"PTRDIFF_SPECIFIER" > %"SIZE_SPECIFIER")\n",
|
|
nal_size, sizeof(pps->data));
|
|
pps->data_size = sizeof(pps->data);
|
|
} else {
|
|
pps->data_size = nal_size;
|
|
}
|
|
memcpy(pps->data, gb->buffer, pps->data_size);
|
|
|
|
// 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 >= HEVC_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 >= HEVC_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) {
|
|
int num_tile_columns_minus1 = get_ue_golomb(gb);
|
|
int num_tile_rows_minus1 = get_ue_golomb(gb);
|
|
|
|
if (num_tile_columns_minus1 < 0 ||
|
|
num_tile_columns_minus1 >= sps->ctb_width) {
|
|
av_log(avctx, AV_LOG_ERROR, "num_tile_columns_minus1 out of range: %d\n",
|
|
num_tile_columns_minus1);
|
|
ret = num_tile_columns_minus1 < 0 ? num_tile_columns_minus1 : AVERROR_INVALIDDATA;
|
|
goto err;
|
|
}
|
|
if (num_tile_rows_minus1 < 0 ||
|
|
num_tile_rows_minus1 >= sps->ctb_height) {
|
|
av_log(avctx, AV_LOG_ERROR, "num_tile_rows_minus1 out of range: %d\n",
|
|
num_tile_rows_minus1);
|
|
ret = num_tile_rows_minus1 < 0 ? num_tile_rows_minus1 : AVERROR_INVALIDDATA;
|
|
goto err;
|
|
}
|
|
pps->num_tile_columns = num_tile_columns_minus1 + 1;
|
|
pps->num_tile_rows = num_tile_rows_minus1 + 1;
|
|
|
|
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) {
|
|
int beta_offset_div2 = get_se_golomb(gb);
|
|
int tc_offset_div2 = get_se_golomb(gb) ;
|
|
if (beta_offset_div2 < -6 || beta_offset_div2 > 6) {
|
|
av_log(avctx, AV_LOG_ERROR, "pps_beta_offset_div2 out of range: %d\n",
|
|
beta_offset_div2);
|
|
ret = AVERROR_INVALIDDATA;
|
|
goto err;
|
|
}
|
|
if (tc_offset_div2 < -6 || tc_offset_div2 > 6) {
|
|
av_log(avctx, AV_LOG_ERROR, "pps_tc_offset_div2 out of range: %d\n",
|
|
tc_offset_div2);
|
|
ret = AVERROR_INVALIDDATA;
|
|
goto err;
|
|
}
|
|
pps->beta_offset = 2 * beta_offset_div2;
|
|
pps->tc_offset = 2 * tc_offset_div2;
|
|
}
|
|
}
|
|
|
|
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);
|
|
log2_parallel_merge_level_minus2 = get_ue_golomb_long(gb);
|
|
if (log2_parallel_merge_level_minus2 > sps->log2_ctb_size) {
|
|
av_log(avctx, AV_LOG_ERROR, "log2_parallel_merge_level_minus2 out of range: %d\n",
|
|
log2_parallel_merge_level_minus2);
|
|
ret = AVERROR_INVALIDDATA;
|
|
goto err;
|
|
}
|
|
pps->log2_parallel_merge_level = log2_parallel_merge_level_minus2 + 2;
|
|
|
|
pps->slice_header_extension_present_flag = get_bits1(gb);
|
|
|
|
if (get_bits1(gb)) { // pps_extension_present_flag
|
|
pps->pps_range_extensions_flag = get_bits1(gb);
|
|
skip_bits(gb, 7); // pps_extension_7bits
|
|
if (sps->ptl.general_ptl.profile_idc == FF_PROFILE_HEVC_REXT && pps->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;
|
|
}
|
|
|
|
void ff_hevc_ps_uninit(HEVCParamSets *ps)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < FF_ARRAY_ELEMS(ps->vps_list); i++)
|
|
av_buffer_unref(&ps->vps_list[i]);
|
|
for (i = 0; i < FF_ARRAY_ELEMS(ps->sps_list); i++)
|
|
av_buffer_unref(&ps->sps_list[i]);
|
|
for (i = 0; i < FF_ARRAY_ELEMS(ps->pps_list); i++)
|
|
av_buffer_unref(&ps->pps_list[i]);
|
|
|
|
ps->sps = NULL;
|
|
ps->pps = NULL;
|
|
ps->vps = NULL;
|
|
}
|
|
|
|
int ff_hevc_compute_poc(const HEVCSPS *sps, int pocTid0, int poc_lsb, int nal_unit_type)
|
|
{
|
|
int max_poc_lsb = 1 << sps->log2_max_poc_lsb;
|
|
int prev_poc_lsb = pocTid0 % max_poc_lsb;
|
|
int prev_poc_msb = pocTid0 - prev_poc_lsb;
|
|
int poc_msb;
|
|
|
|
if (poc_lsb < prev_poc_lsb && prev_poc_lsb - poc_lsb >= max_poc_lsb / 2)
|
|
poc_msb = prev_poc_msb + max_poc_lsb;
|
|
else if (poc_lsb > prev_poc_lsb && poc_lsb - prev_poc_lsb > max_poc_lsb / 2)
|
|
poc_msb = prev_poc_msb - max_poc_lsb;
|
|
else
|
|
poc_msb = prev_poc_msb;
|
|
|
|
// For BLA picture types, POCmsb is set to 0.
|
|
if (nal_unit_type == HEVC_NAL_BLA_W_LP ||
|
|
nal_unit_type == HEVC_NAL_BLA_W_RADL ||
|
|
nal_unit_type == HEVC_NAL_BLA_N_LP)
|
|
poc_msb = 0;
|
|
|
|
return poc_msb + poc_lsb;
|
|
}
|