FFmpeg/libavcodec/hevc_data.c

/*
 * HEVC shared tables
 *
 * 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 <stdint.h>

#include "hevcdec.h"

const uint8_t ff_hevc_diag_scan4x4_x[16] = {
    0, 0, 1, 0,
    1, 2, 0, 1,
    2, 3, 1, 2,
    3, 2, 3, 3,
};

const uint8_t ff_hevc_diag_scan4x4_y[16] = {
    0, 1, 0, 2,
    1, 0, 3, 2,
    1, 0, 3, 2,
    1, 3, 2, 3,
};

const uint8_t ff_hevc_diag_scan8x8_x[64] = {
    0, 0, 1, 0,
    1, 2, 0, 1,
    2, 3, 0, 1,
    2, 3, 4, 0,
    1, 2, 3, 4,
    5, 0, 1, 2,
    3, 4, 5, 6,
    0, 1, 2, 3,
    4, 5, 6, 7,
    1, 2, 3, 4,
    5, 6, 7, 2,
    3, 4, 5, 6,
    7, 3, 4, 5,
    6, 7, 4, 5,
    6, 7, 5, 6,
    7, 6, 7, 7,
};

const uint8_t ff_hevc_diag_scan8x8_y[64] = {
    0, 1, 0, 2,
    1, 0, 3, 2,
    1, 0, 4, 3,
    2, 1, 0, 5,
    4, 3, 2, 1,
    0, 6, 5, 4,
    3, 2, 1, 0,
    7, 6, 5, 4,
    3, 2, 1, 0,
    7, 6, 5, 4,
    3, 2, 1, 7,
    6, 5, 4, 3,
    2, 7, 6, 5,
    4, 3, 7, 6,
    5, 4, 7, 6,
    5, 7, 6, 7,
};