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50 lines
1.9 KiB
50 lines
1.9 KiB
/* |
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* VVC CTU(Coding Tree Unit) parser |
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* |
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* Copyright (C) 2022 Nuo Mi |
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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 "vvc_cabac.h" |
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#include "vvc_ctu.h" |
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#include "vvc_mvs.h" |
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void ff_vvc_set_neighbour_available(VVCLocalContext *lc, |
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const int x0, const int y0, const int w, const int h) |
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{ |
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const int log2_ctb_size = lc->fc->ps.sps->ctb_log2_size_y; |
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const int x0b = av_mod_uintp2(x0, log2_ctb_size); |
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const int y0b = av_mod_uintp2(y0, log2_ctb_size); |
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lc->na.cand_up = (lc->ctb_up_flag || y0b); |
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lc->na.cand_left = (lc->ctb_left_flag || x0b); |
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lc->na.cand_up_left = (x0b || y0b) ? lc->na.cand_left && lc->na.cand_up : lc->ctb_up_left_flag; |
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lc->na.cand_up_right_sap = |
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(x0b + w == 1 << log2_ctb_size) ? lc->ctb_up_right_flag && !y0b : lc->na.cand_up; |
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lc->na.cand_up_right = lc->na.cand_up_right_sap && (x0 + w) < lc->end_of_tiles_x; |
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} |
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void ff_vvc_ep_init_stat_coeff(EntryPoint *ep, |
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const int bit_depth, const int persistent_rice_adaptation_enabled_flag) |
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{ |
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for (size_t i = 0; i < FF_ARRAY_ELEMS(ep->stat_coeff); ++i) { |
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ep->stat_coeff[i] = |
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persistent_rice_adaptation_enabled_flag ? 2 * (av_log2(bit_depth - 10)) : 0; |
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} |
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}
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