ivi.c 64.9 KB
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/*
 * common functions for Indeo Video Interactive codecs (Indeo4 and Indeo5)
 *
 * Copyright (c) 2009 Maxim Poliakovski
 *
 * This file is part of FFmpeg.
 *
 * FFmpeg is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * FFmpeg is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with FFmpeg; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

/**
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 * @file
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 * This file contains functions and data shared by both Indeo4 and
 * Indeo5 decoders.
 */

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#include <inttypes.h>

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#define BITSTREAM_READER_LE
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#include "libavutil/attributes.h"
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#include "libavutil/imgutils.h"
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#include "libavutil/timer.h"
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#include "avcodec.h"
#include "get_bits.h"
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#include "internal.h"
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#include "mathops.h"
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#include "ivi.h"
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#include "ivi_dsp.h"

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/**
 * These are 2x8 predefined Huffman codebooks for coding macroblock/block
 * signals. They are specified using "huffman descriptors" in order to
 * avoid huge static tables. The decoding tables will be generated at
 * startup from these descriptors.
 */
/** static macroblock huffman tables */
static const IVIHuffDesc ivi_mb_huff_desc[8] = {
    {8,  {0, 4, 5, 4, 4, 4, 6, 6}},
    {12, {0, 2, 2, 3, 3, 3, 3, 5, 3, 2, 2, 2}},
    {12, {0, 2, 3, 4, 3, 3, 3, 3, 4, 3, 2, 2}},
    {12, {0, 3, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2}},
    {13, {0, 4, 4, 3, 3, 3, 3, 2, 3, 3, 2, 1, 1}},
    {9,  {0, 4, 4, 4, 4, 3, 3, 3, 2}},
    {10, {0, 4, 4, 4, 4, 3, 3, 2, 2, 2}},
    {12, {0, 4, 4, 4, 3, 3, 2, 3, 2, 2, 2, 2}}
};

/** static block huffman tables */
static const IVIHuffDesc ivi_blk_huff_desc[8] = {
    {10, {1, 2, 3, 4, 4, 7, 5, 5, 4, 1}},
    {11, {2, 3, 4, 4, 4, 7, 5, 4, 3, 3, 2}},
    {12, {2, 4, 5, 5, 5, 5, 6, 4, 4, 3, 1, 1}},
    {13, {3, 3, 4, 4, 5, 6, 6, 4, 4, 3, 2, 1, 1}},
    {11, {3, 4, 4, 5, 5, 5, 6, 5, 4, 2, 2}},
    {13, {3, 4, 5, 5, 5, 5, 6, 4, 3, 3, 2, 1, 1}},
    {13, {3, 4, 5, 5, 5, 6, 5, 4, 3, 3, 2, 1, 1}},
    {9,  {3, 4, 4, 5, 5, 5, 6, 5, 5}}
};
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static VLC ivi_mb_vlc_tabs [8]; ///< static macroblock Huffman tables
static VLC ivi_blk_vlc_tabs[8]; ///< static block Huffman tables
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typedef void (*ivi_mc_func) (int16_t *buf, const int16_t *ref_buf,
                             uint32_t pitch, int mc_type);
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typedef void (*ivi_mc_avg_func) (int16_t *buf, const int16_t *ref_buf1,
                                 const int16_t *ref_buf2,
                                 uint32_t pitch, int mc_type, int mc_type2);
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static int ivi_mc(IVIBandDesc *band, ivi_mc_func mc, ivi_mc_avg_func mc_avg,
                  int offs, int mv_x, int mv_y, int mv_x2, int mv_y2,
                  int mc_type, int mc_type2)
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{
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    int ref_offs = offs + mv_y * band->pitch + mv_x;
    int buf_size = band->pitch * band->aheight;
    int min_size = band->pitch * (band->blk_size - 1) + band->blk_size;
    int ref_size = (mc_type > 1) * band->pitch + (mc_type & 1);
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    if (mc_type != -1) {
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        av_assert0(offs >= 0 && ref_offs >= 0 && band->ref_buf);
        av_assert0(buf_size - min_size >= offs);
        av_assert0(buf_size - min_size - ref_size >= ref_offs);
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    }
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    if (mc_type2 == -1) {
        mc(band->buf + offs, band->ref_buf + ref_offs, band->pitch, mc_type);
    } else {
        int ref_offs2 = offs + mv_y2 * band->pitch + mv_x2;
        int ref_size2 = (mc_type2 > 1) * band->pitch + (mc_type2 & 1);
        if (offs < 0 || ref_offs2 < 0 || !band->b_ref_buf)
            return AVERROR_INVALIDDATA;
        if (buf_size - min_size - ref_size2 < ref_offs2)
            return AVERROR_INVALIDDATA;
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        if (mc_type == -1)
            mc(band->buf + offs, band->b_ref_buf + ref_offs2,
               band->pitch, mc_type2);
        else
            mc_avg(band->buf + offs, band->ref_buf + ref_offs,
                   band->b_ref_buf + ref_offs2, band->pitch,
                   mc_type, mc_type2);
    }
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    return 0;
}

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/**
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 *  Reverse "nbits" bits of the value "val" and return the result
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 *  in the least significant bits.
 */
static uint16_t inv_bits(uint16_t val, int nbits)
{
    uint16_t res;

    if (nbits <= 8) {
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        res = ff_reverse[val] >> (8 - nbits);
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    } else
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        res = ((ff_reverse[val & 0xFF] << 8) +
               (ff_reverse[val >> 8])) >> (16 - nbits);
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    return res;
}

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/*
 *  Generate a huffman codebook from the given descriptor
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 *  and convert it into the FFmpeg VLC table.
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 *
 *  @param[in]   cb    pointer to codebook descriptor
 *  @param[out]  vlc   where to place the generated VLC table
 *  @param[in]   flag  flag: 1 - for static or 0 for dynamic tables
 *  @return     result code: 0 - OK, -1 = error (invalid codebook descriptor)
 */
static int ivi_create_huff_from_desc(const IVIHuffDesc *cb, VLC *vlc, int flag)
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{
    int         pos, i, j, codes_per_row, prefix, not_last_row;
    uint16_t    codewords[256]; /* FIXME: move this temporal storage out? */
    uint8_t     bits[256];

    pos = 0; /* current position = 0 */

    for (i = 0; i < cb->num_rows; i++) {
        codes_per_row = 1 << cb->xbits[i];
        not_last_row  = (i != cb->num_rows - 1);
        prefix        = ((1 << i) - 1) << (cb->xbits[i] + not_last_row);

        for (j = 0; j < codes_per_row; j++) {
            if (pos >= 256) /* Some Indeo5 codebooks can have more than 256 */
                break;      /* elements, but only 256 codes are allowed! */

            bits[pos] = i + cb->xbits[i] + not_last_row;
            if (bits[pos] > IVI_VLC_BITS)
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                return AVERROR_INVALIDDATA; /* invalid descriptor */
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            codewords[pos] = inv_bits((prefix | j), bits[pos]);
            if (!bits[pos])
                bits[pos] = 1;

            pos++;
        }//for j
    }//for i

    /* number of codewords = pos */
    return init_vlc(vlc, IVI_VLC_BITS, pos, bits, 1, 1, codewords, 2, 2,
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                    (flag ? INIT_VLC_USE_NEW_STATIC : 0) | INIT_VLC_LE);
}

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av_cold void ff_ivi_init_static_vlc(void)
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{
    int i;
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    static VLC_TYPE table_data[8192 * 16][2];
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    static int initialized_vlcs = 0;

    if (initialized_vlcs)
        return;
    for (i = 0; i < 8; i++) {
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        ivi_mb_vlc_tabs[i].table = table_data + i * 2 * 8192;
        ivi_mb_vlc_tabs[i].table_allocated = 8192;
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        ivi_create_huff_from_desc(&ivi_mb_huff_desc[i],
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                                  &ivi_mb_vlc_tabs[i], 1);
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        ivi_blk_vlc_tabs[i].table = table_data + (i * 2 + 1) * 8192;
        ivi_blk_vlc_tabs[i].table_allocated = 8192;
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        ivi_create_huff_from_desc(&ivi_blk_huff_desc[i],
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                                  &ivi_blk_vlc_tabs[i], 1);
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    }
    initialized_vlcs = 1;
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}

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/*
 *  Copy huffman codebook descriptors.
 *
 *  @param[out]  dst  ptr to the destination descriptor
 *  @param[in]   src  ptr to the source descriptor
 */
static void ivi_huff_desc_copy(IVIHuffDesc *dst, const IVIHuffDesc *src)
{
    dst->num_rows = src->num_rows;
    memcpy(dst->xbits, src->xbits, src->num_rows);
}

/*
 *  Compare two huffman codebook descriptors.
 *
 *  @param[in]  desc1  ptr to the 1st descriptor to compare
 *  @param[in]  desc2  ptr to the 2nd descriptor to compare
 *  @return         comparison result: 0 - equal, 1 - not equal
 */
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static int ivi_huff_desc_cmp(const IVIHuffDesc *desc1,
                             const IVIHuffDesc *desc2)
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{
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    return desc1->num_rows != desc2->num_rows ||
           memcmp(desc1->xbits, desc2->xbits, desc1->num_rows);
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}

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int ff_ivi_dec_huff_desc(GetBitContext *gb, int desc_coded, int which_tab,
                         IVIHuffTab *huff_tab, AVCodecContext *avctx)
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{
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    int i, result;
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    IVIHuffDesc new_huff;
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    if (!desc_coded) {
        /* select default table */
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        huff_tab->tab = (which_tab) ? &ivi_blk_vlc_tabs[7]
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                                    : &ivi_mb_vlc_tabs [7];
        return 0;
    }
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    huff_tab->tab_sel = get_bits(gb, 3);
    if (huff_tab->tab_sel == 7) {
        /* custom huffman table (explicitly encoded) */
        new_huff.num_rows = get_bits(gb, 4);
        if (!new_huff.num_rows) {
            av_log(avctx, AV_LOG_ERROR, "Empty custom Huffman table!\n");
            return AVERROR_INVALIDDATA;
        }

        for (i = 0; i < new_huff.num_rows; i++)
            new_huff.xbits[i] = get_bits(gb, 4);

        /* Have we got the same custom table? Rebuild if not. */
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        if (ivi_huff_desc_cmp(&new_huff, &huff_tab->cust_desc) || !huff_tab->cust_tab.table) {
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            ivi_huff_desc_copy(&huff_tab->cust_desc, &new_huff);

            if (huff_tab->cust_tab.table)
                ff_free_vlc(&huff_tab->cust_tab);
            result = ivi_create_huff_from_desc(&huff_tab->cust_desc,
                    &huff_tab->cust_tab, 0);
            if (result) {
                // reset faulty description
                huff_tab->cust_desc.num_rows = 0;
                av_log(avctx, AV_LOG_ERROR,
                       "Error while initializing custom vlc table!\n");
                return result;
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            }
        }
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        huff_tab->tab = &huff_tab->cust_tab;
    } else {
        /* select one of predefined tables */
        huff_tab->tab = (which_tab) ? &ivi_blk_vlc_tabs[huff_tab->tab_sel]
            : &ivi_mb_vlc_tabs [huff_tab->tab_sel];
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    }

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    return 0;
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}

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/*
 *  Free planes, bands and macroblocks buffers.
 *
 *  @param[in]  planes  pointer to the array of the plane descriptors
 */
static av_cold void ivi_free_buffers(IVIPlaneDesc *planes)
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{
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    int p, b, t;
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    for (p = 0; p < 3; p++) {
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        if (planes[p].bands)
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        for (b = 0; b < planes[p].num_bands; b++) {
            av_freep(&planes[p].bands[b].bufs[0]);
            av_freep(&planes[p].bands[b].bufs[1]);
            av_freep(&planes[p].bands[b].bufs[2]);
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            av_freep(&planes[p].bands[b].bufs[3]);
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            if (planes[p].bands[b].blk_vlc.cust_tab.table)
                ff_free_vlc(&planes[p].bands[b].blk_vlc.cust_tab);
            for (t = 0; t < planes[p].bands[b].num_tiles; t++)
                av_freep(&planes[p].bands[b].tiles[t].mbs);
            av_freep(&planes[p].bands[b].tiles);
        }
        av_freep(&planes[p].bands);
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        planes[p].num_bands = 0;
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    }
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}

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av_cold int ff_ivi_init_planes(IVIPlaneDesc *planes, const IVIPicConfig *cfg,
                               int is_indeo4)
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{
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    int p, b;
    uint32_t b_width, b_height, align_fac, width_aligned,
             height_aligned, buf_size;
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    IVIBandDesc *band;

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    ivi_free_buffers(planes);
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    if (av_image_check_size(cfg->pic_width, cfg->pic_height, 0, NULL) < 0 ||
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        cfg->luma_bands < 1 || cfg->chroma_bands < 1)
        return AVERROR_INVALIDDATA;

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    /* fill in the descriptor of the luminance plane */
    planes[0].width     = cfg->pic_width;
    planes[0].height    = cfg->pic_height;
    planes[0].num_bands = cfg->luma_bands;

    /* fill in the descriptors of the chrominance planes */
    planes[1].width     = planes[2].width     = (cfg->pic_width  + 3) >> 2;
    planes[1].height    = planes[2].height    = (cfg->pic_height + 3) >> 2;
    planes[1].num_bands = planes[2].num_bands = cfg->chroma_bands;

    for (p = 0; p < 3; p++) {
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        planes[p].bands = av_mallocz_array(planes[p].num_bands, sizeof(IVIBandDesc));
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        if (!planes[p].bands)
            return AVERROR(ENOMEM);

        /* select band dimensions: if there is only one band then it
         *  has the full size, if there are several bands each of them
         *  has only half size */
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        b_width  = planes[p].num_bands == 1 ? planes[p].width
                                            : (planes[p].width  + 1) >> 1;
        b_height = planes[p].num_bands == 1 ? planes[p].height
                                            : (planes[p].height + 1) >> 1;
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        /* luma   band buffers will be aligned on 16x16 (max macroblock size) */
        /* chroma band buffers will be aligned on   8x8 (max macroblock size) */
        align_fac       = p ? 8 : 16;
        width_aligned   = FFALIGN(b_width , align_fac);
        height_aligned  = FFALIGN(b_height, align_fac);
        buf_size        = width_aligned * height_aligned * sizeof(int16_t);

        for (b = 0; b < planes[p].num_bands; b++) {
            band = &planes[p].bands[b]; /* select appropriate plane/band */
            band->plane    = p;
            band->band_num = b;
            band->width    = b_width;
            band->height   = b_height;
            band->pitch    = width_aligned;
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            band->aheight  = height_aligned;
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            band->bufs[0]  = av_mallocz(buf_size);
            band->bufs[1]  = av_mallocz(buf_size);
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            band->bufsize  = buf_size/2;
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            if (!band->bufs[0] || !band->bufs[1])
                return AVERROR(ENOMEM);

            /* allocate the 3rd band buffer for scalability mode */
            if (cfg->luma_bands > 1) {
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                band->bufs[2] = av_mallocz(buf_size);
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                if (!band->bufs[2])
                    return AVERROR(ENOMEM);
            }
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            if (is_indeo4) {
                band->bufs[3]  = av_mallocz(buf_size);
                if (!band->bufs[3])
                    return AVERROR(ENOMEM);
            }
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            /* reset custom vlc */
            planes[p].bands[0].blk_vlc.cust_desc.num_rows = 0;
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        }
    }

    return 0;
}

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static int ivi_init_tiles(IVIBandDesc *band, IVITile *ref_tile,
                          int p, int b, int t_height, int t_width)
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{
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    int x, y;
    IVITile *tile = band->tiles;

    for (y = 0; y < band->height; y += t_height) {
        for (x = 0; x < band->width; x += t_width) {
            tile->xpos     = x;
            tile->ypos     = y;
            tile->mb_size  = band->mb_size;
            tile->width    = FFMIN(band->width - x,  t_width);
            tile->height   = FFMIN(band->height - y, t_height);
            tile->is_empty = tile->data_size = 0;
            /* calculate number of macroblocks */
            tile->num_MBs  = IVI_MBs_PER_TILE(tile->width, tile->height,
                                              band->mb_size);

            av_freep(&tile->mbs);
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            tile->mbs = av_mallocz_array(tile->num_MBs, sizeof(IVIMbInfo));
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            if (!tile->mbs)
                return AVERROR(ENOMEM);

            tile->ref_mbs = 0;
            if (p || b) {
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                if (tile->num_MBs != ref_tile->num_MBs) {
                    av_log(NULL, AV_LOG_DEBUG, "ref_tile mismatch\n");
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                    return AVERROR_INVALIDDATA;
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                }
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                tile->ref_mbs = ref_tile->mbs;
                ref_tile++;
            }
            tile++;
        }
    }

    return 0;
}

av_cold int ff_ivi_init_tiles(IVIPlaneDesc *planes,
                              int tile_width, int tile_height)
{
    int p, b, x_tiles, y_tiles, t_width, t_height, ret;
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    IVIBandDesc *band;

    for (p = 0; p < 3; p++) {
        t_width  = !p ? tile_width  : (tile_width  + 3) >> 2;
        t_height = !p ? tile_height : (tile_height + 3) >> 2;

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        if (!p && planes[0].num_bands == 4) {
            t_width  >>= 1;
            t_height >>= 1;
        }
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        if(t_width<=0 || t_height<=0)
            return AVERROR(EINVAL);
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        for (b = 0; b < planes[p].num_bands; b++) {
            band = &planes[p].bands[b];
            x_tiles = IVI_NUM_TILES(band->width, t_width);
            y_tiles = IVI_NUM_TILES(band->height, t_height);
            band->num_tiles = x_tiles * y_tiles;

            av_freep(&band->tiles);
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            band->tiles = av_mallocz_array(band->num_tiles, sizeof(IVITile));
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            if (!band->tiles)
                return AVERROR(ENOMEM);

            /* use the first luma band as reference for motion vectors
             * and quant */
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            ret = ivi_init_tiles(band, planes[0].bands[0].tiles,
                                 p, b, t_height, t_width);
            if (ret < 0)
                return ret;
        }
    }
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    return 0;
}

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/*
 *  Decode size of the tile data.
 *  The size is stored as a variable-length field having the following format:
 *  if (tile_data_size < 255) than this field is only one byte long
 *  if (tile_data_size >= 255) than this field four is byte long: 0xFF X1 X2 X3
 *  where X1-X3 is size of the tile data
 *
 *  @param[in,out]  gb  the GetBit context
 *  @return     size of the tile data in bytes
 */
static int ivi_dec_tile_data_size(GetBitContext *gb)
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{
    int    len;

    len = 0;
    if (get_bits1(gb)) {
        len = get_bits(gb, 8);
        if (len == 255)
            len = get_bits_long(gb, 24);
    }

    /* align the bitstream reader on the byte boundary */
    align_get_bits(gb);

    return len;
}

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static int ivi_dc_transform(IVIBandDesc *band, int *prev_dc, int buf_offs,
                            int blk_size)
{
    int buf_size = band->pitch * band->aheight - buf_offs;
    int min_size = (blk_size - 1) * band->pitch + blk_size;

    if (min_size > buf_size)
        return AVERROR_INVALIDDATA;

    band->dc_transform(prev_dc, band->buf + buf_offs,
                       band->pitch, blk_size);

    return 0;
}
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static int ivi_decode_coded_blocks(GetBitContext *gb, IVIBandDesc *band,
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                                   ivi_mc_func mc, ivi_mc_avg_func mc_avg,
                                   int mv_x, int mv_y,
                                   int mv_x2, int mv_y2,
                                   int *prev_dc, int is_intra,
                                   int mc_type, int mc_type2,
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                                   uint32_t quant, int offs,
                                   AVCodecContext *avctx)
{
    const uint16_t *base_tab  = is_intra ? band->intra_base : band->inter_base;
    RVMapDesc *rvmap = band->rv_map;
    uint8_t col_flags[8];
    int32_t trvec[64];
    uint32_t sym = 0, lo, hi, q;
    int pos, run, val;
    int blk_size   = band->blk_size;
    int num_coeffs = blk_size * blk_size;
    int col_mask   = blk_size - 1;
    int scan_pos   = -1;
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    int min_size   = band->pitch * (band->transform_size - 1) +
                     band->transform_size;
    int buf_size   = band->pitch * band->aheight - offs;

    if (min_size > buf_size)
        return AVERROR_INVALIDDATA;
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    if (!band->scan) {
        av_log(avctx, AV_LOG_ERROR, "Scan pattern is not set.\n");
        return AVERROR_INVALIDDATA;
    }

    /* zero transform vector */
    memset(trvec, 0, num_coeffs * sizeof(trvec[0]));
    /* zero column flags */
    memset(col_flags, 0, sizeof(col_flags));
    while (scan_pos <= num_coeffs) {
        sym = get_vlc2(gb, band->blk_vlc.tab->table,
                       IVI_VLC_BITS, 1);
        if (sym == rvmap->eob_sym)
            break; /* End of block */

        /* Escape - run/val explicitly coded using 3 vlc codes */
        if (sym == rvmap->esc_sym) {
            run = get_vlc2(gb, band->blk_vlc.tab->table, IVI_VLC_BITS, 1) + 1;
            lo  = get_vlc2(gb, band->blk_vlc.tab->table, IVI_VLC_BITS, 1);
            hi  = get_vlc2(gb, band->blk_vlc.tab->table, IVI_VLC_BITS, 1);
            /* merge them and convert into signed val */
            val = IVI_TOSIGNED((hi << 6) | lo);
        } else {
            if (sym >= 256U) {
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                av_log(avctx, AV_LOG_ERROR, "Invalid sym encountered: %"PRIu32".\n", sym);
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                return AVERROR_INVALIDDATA;
            }
            run = rvmap->runtab[sym];
            val = rvmap->valtab[sym];
        }

        /* de-zigzag and dequantize */
        scan_pos += run;
561
        if (scan_pos >= num_coeffs || scan_pos < 0)
562 563 564 565
            break;
        pos = band->scan[scan_pos];

        if (!val)
566
            ff_dlog(avctx, "Val = 0 encountered!\n");
567 568 569 570 571 572 573 574 575

        q = (base_tab[pos] * quant) >> 9;
        if (q > 1)
            val = val * q + FFSIGN(val) * (((q ^ 1) - 1) >> 1);
        trvec[pos] = val;
        /* track columns containing non-zero coeffs */
        col_flags[pos & col_mask] |= !!val;
    }

576
    if (scan_pos < 0 || scan_pos >= num_coeffs && sym != rvmap->eob_sym)
577 578 579 580 581 582 583 584 585
        return AVERROR_INVALIDDATA; /* corrupt block data */

    /* undoing DC coeff prediction for intra-blocks */
    if (is_intra && band->is_2d_trans) {
        *prev_dc     += trvec[0];
        trvec[0]      = *prev_dc;
        col_flags[0] |= !!*prev_dc;
    }

586 587 588 589 590
    if(band->transform_size > band->blk_size){
        av_log(NULL, AV_LOG_ERROR, "Too large transform\n");
        return AVERROR_INVALIDDATA;
    }

591 592 593 594 595 596
    /* apply inverse transform */
    band->inv_transform(trvec, band->buf + offs,
                        band->pitch, col_flags);

    /* apply motion compensation */
    if (!is_intra)
597 598
        return ivi_mc(band, mc, mc_avg, offs, mv_x, mv_y, mv_x2, mv_y2,
                      mc_type, mc_type2);
599 600 601

    return 0;
}
602 603 604 605 606 607 608 609 610 611 612
/*
 *  Decode block data:
 *  extract huffman-coded transform coefficients from the bitstream,
 *  dequantize them, apply inverse transform and motion compensation
 *  in order to reconstruct the picture.
 *
 *  @param[in,out]  gb    the GetBit context
 *  @param[in]      band  pointer to the band descriptor
 *  @param[in]      tile  pointer to the tile descriptor
 *  @return     result code: 0 - OK, -1 = error (corrupted blocks data)
 */
613 614
static int ivi_decode_blocks(GetBitContext *gb, IVIBandDesc *band,
                             IVITile *tile, AVCodecContext *avctx)
615
{
616 617 618
    int mbn, blk, num_blocks, blk_size, ret, is_intra;
    int mc_type = 0, mc_type2 = -1;
    int mv_x = 0, mv_y = 0, mv_x2 = 0, mv_y2 = 0;
619 620 621
    int32_t prev_dc;
    uint32_t cbp, quant, buf_offs;
    IVIMbInfo *mb;
622
    ivi_mc_func mc_with_delta_func, mc_no_delta_func;
623
    ivi_mc_avg_func mc_avg_with_delta_func, mc_avg_no_delta_func;
624
    const uint8_t *scale_tab;
625

626 627
    /* init intra prediction for the DC coefficient */
    prev_dc    = 0;
628
    blk_size   = band->blk_size;
629 630
    /* number of blocks per mb */
    num_blocks = (band->mb_size != blk_size) ? 4 : 1;
631
    if (blk_size == 8) {
632 633 634 635
        mc_with_delta_func     = ff_ivi_mc_8x8_delta;
        mc_no_delta_func       = ff_ivi_mc_8x8_no_delta;
        mc_avg_with_delta_func = ff_ivi_mc_avg_8x8_delta;
        mc_avg_no_delta_func   = ff_ivi_mc_avg_8x8_no_delta;
636
    } else {
637 638 639 640
        mc_with_delta_func     = ff_ivi_mc_4x4_delta;
        mc_no_delta_func       = ff_ivi_mc_4x4_no_delta;
        mc_avg_with_delta_func = ff_ivi_mc_avg_4x4_delta;
        mc_avg_no_delta_func   = ff_ivi_mc_avg_4x4_no_delta;
641 642 643 644 645 646 647
    }

    for (mbn = 0, mb = tile->mbs; mbn < tile->num_MBs; mb++, mbn++) {
        is_intra = !mb->type;
        cbp      = mb->cbp;
        buf_offs = mb->buf_offs;

648 649
        quant = band->glob_quant + mb->q_delta;
        if (avctx->codec_id == AV_CODEC_ID_INDEO4)
650
            quant = av_clip_uintp2(quant, 5);
651 652
        else
            quant = av_clip(quant, 0, 23);
653 654

        scale_tab = is_intra ? band->intra_scale : band->inter_scale;
655 656
        if (scale_tab)
            quant = scale_tab[quant];
657 658

        if (!is_intra) {
659 660 661 662
            mv_x  = mb->mv_x;
            mv_y  = mb->mv_y;
            mv_x2 = mb->b_mv_x;
            mv_y2 = mb->b_mv_y;
663
            if (band->is_halfpel) {
664 665 666 667 668 669
                mc_type  = ((mv_y  & 1) << 1) | (mv_x  & 1);
                mc_type2 = ((mv_y2 & 1) << 1) | (mv_x2 & 1);
                mv_x  >>= 1;
                mv_y  >>= 1;
                mv_x2 >>= 1;
                mv_y2 >>= 1; /* convert halfpel vectors into fullpel ones */
670
            }
671 672 673 674
            if (mb->type == 2)
                mc_type = -1;
            if (mb->type != 2 && mb->type != 3)
                mc_type2 = -1;
675 676 677 678 679 680 681 682
            if (mb->type) {
                int dmv_x, dmv_y, cx, cy;

                dmv_x = mb->mv_x >> band->is_halfpel;
                dmv_y = mb->mv_y >> band->is_halfpel;
                cx    = mb->mv_x &  band->is_halfpel;
                cy    = mb->mv_y &  band->is_halfpel;

683 684 685 686 687 688 689 690 691 692 693 694 695 696 697
                if (mb->xpos + dmv_x < 0 ||
                    mb->xpos + dmv_x + band->mb_size + cx > band->pitch ||
                    mb->ypos + dmv_y < 0 ||
                    mb->ypos + dmv_y + band->mb_size + cy > band->aheight) {
                    return AVERROR_INVALIDDATA;
                }
            }
            if (mb->type == 2 || mb->type == 3) {
                int dmv_x, dmv_y, cx, cy;

                dmv_x = mb->b_mv_x >> band->is_halfpel;
                dmv_y = mb->b_mv_y >> band->is_halfpel;
                cx    = mb->b_mv_x &  band->is_halfpel;
                cy    = mb->b_mv_y &  band->is_halfpel;

698 699 700 701
                if (mb->xpos + dmv_x < 0 ||
                    mb->xpos + dmv_x + band->mb_size + cx > band->pitch ||
                    mb->ypos + dmv_y < 0 ||
                    mb->ypos + dmv_y + band->mb_size + cy > band->aheight) {
702 703 704
                    return AVERROR_INVALIDDATA;
                }
            }
705 706 707 708 709 710 711 712 713 714 715 716
        }

        for (blk = 0; blk < num_blocks; blk++) {
            /* adjust block position in the buffer according to its number */
            if (blk & 1) {
                buf_offs += blk_size;
            } else if (blk == 2) {
                buf_offs -= blk_size;
                buf_offs += blk_size * band->pitch;
            }

            if (cbp & 1) { /* block coded ? */
717
                ret = ivi_decode_coded_blocks(gb, band, mc_with_delta_func,
718 719 720 721 722
                                              mc_avg_with_delta_func,
                                              mv_x, mv_y, mv_x2, mv_y2,
                                              &prev_dc, is_intra,
                                              mc_type, mc_type2, quant,
                                              buf_offs, avctx);
723 724
                if (ret < 0)
                    return ret;
725 726 727 728
            } else {
                /* block not coded */
                /* for intra blocks apply the dc slant transform */
                /* for inter - perform the motion compensation without delta */
729
                if (is_intra) {
730 731 732
                    ret = ivi_dc_transform(band, &prev_dc, buf_offs, blk_size);
                    if (ret < 0)
                        return ret;
733
                } else {
734 735 736
                    ret = ivi_mc(band, mc_no_delta_func, mc_avg_no_delta_func,
                                 buf_offs, mv_x, mv_y, mv_x2, mv_y2,
                                 mc_type, mc_type2);
737 738 739
                    if (ret < 0)
                        return ret;
                }
740 741 742 743 744 745 746 747 748 749 750
            }

            cbp >>= 1;
        }// for blk
    }// for mbn

    align_get_bits(gb);

    return 0;
}

751 752 753 754 755 756 757 758 759
/**
 *  Handle empty tiles by performing data copying and motion
 *  compensation respectively.
 *
 *  @param[in]  avctx     ptr to the AVCodecContext
 *  @param[in]  band      pointer to the band descriptor
 *  @param[in]  tile      pointer to the tile descriptor
 *  @param[in]  mv_scale  scaling factor for motion vectors
 */
760 761
static int ivi_process_empty_tile(AVCodecContext *avctx, IVIBandDesc *band,
                                  IVITile *tile, int32_t mv_scale)
762 763
{
    int             x, y, need_mc, mbn, blk, num_blocks, mv_x, mv_y, mc_type;
764
    int             offs, mb_offset, row_offset, ret;
765 766 767
    IVIMbInfo       *mb, *ref_mb;
    const int16_t   *src;
    int16_t         *dst;
768
    ivi_mc_func     mc_no_delta_func;
769

770 771 772
    if (tile->num_MBs != IVI_MBs_PER_TILE(tile->width, tile->height, band->mb_size)) {
        av_log(avctx, AV_LOG_ERROR, "Allocated tile size %d mismatches "
               "parameters %d in ivi_process_empty_tile()\n",
773
               tile->num_MBs, IVI_MBs_PER_TILE(tile->width, tile->height, band->mb_size));
774
        return AVERROR_INVALIDDATA;
775 776
    }

777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802
    offs       = tile->ypos * band->pitch + tile->xpos;
    mb         = tile->mbs;
    ref_mb     = tile->ref_mbs;
    row_offset = band->mb_size * band->pitch;
    need_mc    = 0; /* reset the mc tracking flag */

    for (y = tile->ypos; y < (tile->ypos + tile->height); y += band->mb_size) {
        mb_offset = offs;

        for (x = tile->xpos; x < (tile->xpos + tile->width); x += band->mb_size) {
            mb->xpos     = x;
            mb->ypos     = y;
            mb->buf_offs = mb_offset;

            mb->type = 1; /* set the macroblocks type = INTER */
            mb->cbp  = 0; /* all blocks are empty */

            if (!band->qdelta_present && !band->plane && !band->band_num) {
                mb->q_delta = band->glob_quant;
                mb->mv_x    = 0;
                mb->mv_y    = 0;
            }

            if (band->inherit_qdelta && ref_mb)
                mb->q_delta = ref_mb->q_delta;

803
            if (band->inherit_mv && ref_mb) {
804 805 806 807 808 809 810 811 812
                /* motion vector inheritance */
                if (mv_scale) {
                    mb->mv_x = ivi_scale_mv(ref_mb->mv_x, mv_scale);
                    mb->mv_y = ivi_scale_mv(ref_mb->mv_y, mv_scale);
                } else {
                    mb->mv_x = ref_mb->mv_x;
                    mb->mv_y = ref_mb->mv_y;
                }
                need_mc |= mb->mv_x || mb->mv_y; /* tracking non-zero motion vectors */
813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828
                {
                    int dmv_x, dmv_y, cx, cy;

                    dmv_x = mb->mv_x >> band->is_halfpel;
                    dmv_y = mb->mv_y >> band->is_halfpel;
                    cx    = mb->mv_x &  band->is_halfpel;
                    cy    = mb->mv_y &  band->is_halfpel;

                    if (   mb->xpos + dmv_x < 0
                        || mb->xpos + dmv_x + band->mb_size + cx > band->pitch
                        || mb->ypos + dmv_y < 0
                        || mb->ypos + dmv_y + band->mb_size + cy > band->aheight) {
                        av_log(avctx, AV_LOG_ERROR, "MV out of bounds\n");
                        return AVERROR_INVALIDDATA;
                    }
                }
829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857
            }

            mb++;
            if (ref_mb)
                ref_mb++;
            mb_offset += band->mb_size;
        } // for x
        offs += row_offset;
    } // for y

    if (band->inherit_mv && need_mc) { /* apply motion compensation if there is at least one non-zero motion vector */
        num_blocks = (band->mb_size != band->blk_size) ? 4 : 1; /* number of blocks per mb */
        mc_no_delta_func = (band->blk_size == 8) ? ff_ivi_mc_8x8_no_delta
                                                 : ff_ivi_mc_4x4_no_delta;

        for (mbn = 0, mb = tile->mbs; mbn < tile->num_MBs; mb++, mbn++) {
            mv_x = mb->mv_x;
            mv_y = mb->mv_y;
            if (!band->is_halfpel) {
                mc_type = 0; /* we have only fullpel vectors */
            } else {
                mc_type = ((mv_y & 1) << 1) | (mv_x & 1);
                mv_x >>= 1;
                mv_y >>= 1; /* convert halfpel vectors into fullpel ones */
            }

            for (blk = 0; blk < num_blocks; blk++) {
                /* adjust block position in the buffer according with its number */
                offs = mb->buf_offs + band->blk_size * ((blk & 1) + !!(blk & 2) * band->pitch);
858 859
                ret = ivi_mc(band, mc_no_delta_func, 0, offs,
                             mv_x, mv_y, 0, 0, mc_type, -1);
860 861
                if (ret < 0)
                    return ret;
862 863 864 865 866 867 868 869 870 871 872 873
            }
        }
    } else {
        /* copy data from the reference tile into the current one */
        src = band->ref_buf + tile->ypos * band->pitch + tile->xpos;
        dst = band->buf     + tile->ypos * band->pitch + tile->xpos;
        for (y = 0; y < tile->height; y++) {
            memcpy(dst, src, tile->width*sizeof(band->buf[0]));
            src += band->pitch;
            dst += band->pitch;
        }
    }
874 875

    return 0;
876 877 878
}


879
#ifdef DEBUG
880
static uint16_t ivi_calc_band_checksum(IVIBandDesc *band)
881 882 883 884 885 886 887 888 889 890 891 892 893 894 895
{
    int         x, y;
    int16_t     *src, checksum;

    src = band->buf;
    checksum = 0;

    for (y = 0; y < band->height; src += band->pitch, y++)
        for (x = 0; x < band->width; x++)
            checksum += src[x];

    return checksum;
}
#endif

896 897 898 899 900 901 902 903 904 905
/*
 *  Convert and output the current plane.
 *  This conversion is done by adding back the bias value of 128
 *  (subtracted in the encoder) and clipping the result.
 *
 *  @param[in]   plane      pointer to the descriptor of the plane being processed
 *  @param[out]  dst        pointer to the buffer receiving converted pixels
 *  @param[in]   dst_pitch  pitch for moving to the next y line
 */
static void ivi_output_plane(IVIPlaneDesc *plane, uint8_t *dst, int dst_pitch)
906 907 908 909 910
{
    int             x, y;
    const int16_t   *src  = plane->bands[0].buf;
    uint32_t        pitch = plane->bands[0].pitch;

911
    if (!src)
912 913
        return;

914 915 916 917 918 919 920 921
    for (y = 0; y < plane->height; y++) {
        for (x = 0; x < plane->width; x++)
            dst[x] = av_clip_uint8(src[x] + 128);
        src += pitch;
        dst += dst_pitch;
    }
}

922 923 924 925 926 927 928 929
/**
 *  Decode an Indeo 4 or 5 band.
 *
 *  @param[in,out]  ctx    ptr to the decoder context
 *  @param[in,out]  band   ptr to the band descriptor
 *  @param[in]      avctx  ptr to the AVCodecContext
 *  @return         result code: 0 = OK, -1 = error
 */
930
static int decode_band(IVI45DecContext *ctx,
931 932 933 934 935 936
                       IVIBandDesc *band, AVCodecContext *avctx)
{
    int         result, i, t, idx1, idx2, pos;
    IVITile     *tile;

    band->buf     = band->bufs[ctx->dst_buf];
937 938 939 940
    if (!band->buf) {
        av_log(avctx, AV_LOG_ERROR, "Band buffer points to no data!\n");
        return AVERROR_INVALIDDATA;
    }
941 942 943 944 945 946 947 948
    if (ctx->is_indeo4 && ctx->frame_type == IVI4_FRAMETYPE_BIDIR) {
        band->ref_buf   = band->bufs[ctx->b_ref_buf];
        band->b_ref_buf = band->bufs[ctx->ref_buf];
    } else {
        band->ref_buf   = band->bufs[ctx->ref_buf];
        band->b_ref_buf = 0;
    }
    band->data_ptr  = ctx->frame_data + (get_bits_count(&ctx->gb) >> 3);
949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969

    result = ctx->decode_band_hdr(ctx, band, avctx);
    if (result) {
        av_log(avctx, AV_LOG_ERROR, "Error while decoding band header: %d\n",
               result);
        return result;
    }

    if (band->is_empty) {
        av_log(avctx, AV_LOG_ERROR, "Empty band encountered!\n");
        return AVERROR_INVALIDDATA;
    }

    band->rv_map = &ctx->rvmap_tabs[band->rvmap_sel];

    /* apply corrections to the selected rvmap table if present */
    for (i = 0; i < band->num_corr; i++) {
        idx1 = band->corr[i * 2];
        idx2 = band->corr[i * 2 + 1];
        FFSWAP(uint8_t, band->rv_map->runtab[idx1], band->rv_map->runtab[idx2]);
        FFSWAP(int16_t, band->rv_map->valtab[idx1], band->rv_map->valtab[idx2]);
970 971 972 973
        if (idx1 == band->rv_map->eob_sym || idx2 == band->rv_map->eob_sym)
            band->rv_map->eob_sym ^= idx1 ^ idx2;
        if (idx1 == band->rv_map->esc_sym || idx2 == band->rv_map->esc_sym)
            band->rv_map->esc_sym ^= idx1 ^ idx2;
974 975 976 977 978 979 980
    }

    pos = get_bits_count(&ctx->gb);

    for (t = 0; t < band->num_tiles; t++) {
        tile = &band->tiles[t];

981 982 983 984 985
        if (tile->mb_size != band->mb_size) {
            av_log(avctx, AV_LOG_ERROR, "MB sizes mismatch: %d vs. %d\n",
                   band->mb_size, tile->mb_size);
            return AVERROR_INVALIDDATA;
        }
986 987
        tile->is_empty = get_bits1(&ctx->gb);
        if (tile->is_empty) {
988
            result = ivi_process_empty_tile(avctx, band, tile,
989
                                      (ctx->planes[0].bands[0].mb_size >> 3) - (band->mb_size >> 3));
990 991
            if (result < 0)
                break;
992
            ff_dlog(avctx, "Empty tile encountered!\n");
993
        } else {
994
            tile->data_size = ivi_dec_tile_data_size(&ctx->gb);
995 996
            if (!tile->data_size) {
                av_log(avctx, AV_LOG_ERROR, "Tile data size is zero!\n");
997 998
                result = AVERROR_INVALIDDATA;
                break;
999 1000 1001 1002 1003 1004
            }

            result = ctx->decode_mb_info(ctx, band, tile, avctx);
            if (result < 0)
                break;

1005
            result = ivi_decode_blocks(&ctx->gb, band, tile, avctx);
1006 1007 1008 1009 1010 1011 1012 1013 1014 1015
            if (result < 0) {
                av_log(avctx, AV_LOG_ERROR,
                       "Corrupted tile data encountered!\n");
                break;
            }

            if (((get_bits_count(&ctx->gb) - pos) >> 3) != tile->data_size) {
                av_log(avctx, AV_LOG_ERROR,
                       "Tile data_size mismatch!\n");
                result = AVERROR_INVALIDDATA;
1016 1017 1018 1019 1020 1021 1022
                break;
            }

            pos += tile->data_size << 3; // skip to next tile
        }
    }

1023 1024
    /* restore the selected rvmap table by applying its corrections in
     * reverse order */
1025 1026 1027 1028 1029
    for (i = band->num_corr-1; i >= 0; i--) {
        idx1 = band->corr[i*2];
        idx2 = band->corr[i*2+1];
        FFSWAP(uint8_t, band->rv_map->runtab[idx1], band->rv_map->runtab[idx2]);
        FFSWAP(int16_t, band->rv_map->valtab[idx1], band->rv_map->valtab[idx2]);
1030 1031 1032 1033
        if (idx1 == band->rv_map->eob_sym || idx2 == band->rv_map->eob_sym)
            band->rv_map->eob_sym ^= idx1 ^ idx2;
        if (idx1 == band->rv_map->esc_sym || idx2 == band->rv_map->esc_sym)
            band->rv_map->esc_sym ^= idx1 ^ idx2;
1034 1035 1036 1037 1038 1039 1040
    }

#ifdef DEBUG
    if (band->checksum_present) {
        uint16_t chksum = ivi_calc_band_checksum(band);
        if (chksum != band->checksum) {
            av_log(avctx, AV_LOG_ERROR,
1041
                   "Band checksum mismatch! Plane %d, band %d, "
1042
                   "received: %"PRIx32", calculated: %"PRIx16"\n",
1043 1044 1045 1046 1047 1048 1049 1050 1051 1052
                   band->plane, band->band_num, band->checksum, chksum);
        }
    }
#endif

    align_get_bits(&ctx->gb);

    return result;
}

1053
int ff_ivi_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
1054 1055 1056 1057
                        AVPacket *avpkt)
{
    IVI45DecContext *ctx = avctx->priv_data;
    const uint8_t   *buf = avpkt->data;
1058
    AVFrame       *frame = data;
1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069
    int             buf_size = avpkt->size;
    int             result, p, b;

    init_get_bits(&ctx->gb, buf, buf_size * 8);
    ctx->frame_data = buf;
    ctx->frame_size = buf_size;

    result = ctx->decode_pic_hdr(ctx, avctx);
    if (result) {
        av_log(avctx, AV_LOG_ERROR,
               "Error while decoding picture header: %d\n", result);
1070
        return result;
1071
    }
1072 1073
    if (ctx->gop_invalid)
        return AVERROR_INVALIDDATA;
1074

1075
    if (ctx->is_indeo4 && ctx->frame_type == IVI4_FRAMETYPE_NULL_LAST) {
1076 1077 1078 1079 1080 1081 1082 1083 1084 1085
        if (ctx->got_p_frame) {
            av_frame_move_ref(data, ctx->p_frame);
            *got_frame = 1;
            ctx->got_p_frame = 0;
        } else {
            *got_frame = 0;
        }
        return buf_size;
    }

1086
    if (ctx->gop_flags & IVI5_IS_PROTECTED) {
1087 1088
        avpriv_report_missing_feature(avctx, "Password-protected clip!\n");
        return AVERROR_PATCHWELCOME;
1089 1090
    }

1091 1092 1093 1094 1095
    if (!ctx->planes[0].bands) {
        av_log(avctx, AV_LOG_ERROR, "Color planes not initialized yet\n");
        return AVERROR_INVALIDDATA;
    }

1096 1097 1098 1099 1100
    ctx->switch_buffers(ctx);

    //{ START_TIMER;

    if (ctx->is_nonnull_frame(ctx)) {
1101
        ctx->buf_invalid[ctx->dst_buf] = 1;
1102 1103
        for (p = 0; p < 3; p++) {
            for (b = 0; b < ctx->planes[p].num_bands; b++) {
1104
                result = decode_band(ctx, &ctx->planes[p].bands[b], avctx);
1105
                if (result < 0) {
1106 1107
                    av_log(avctx, AV_LOG_ERROR,
                           "Error while decoding band: %d, plane: %d\n", b, p);
1108
                    return result;
1109 1110 1111
                }
            }
        }
1112
        ctx->buf_invalid[ctx->dst_buf] = 0;
1113 1114 1115 1116 1117 1118 1119 1120
    } else {
        if (ctx->is_scalable)
            return AVERROR_INVALIDDATA;

        for (p = 0; p < 3; p++) {
            if (!ctx->planes[p].bands[0].buf)
                return AVERROR_INVALIDDATA;
        }
1121
    }
1122 1123
    if (ctx->buf_invalid[ctx->dst_buf])
        return -1;
1124 1125 1126

    //STOP_TIMER("decode_planes"); }

1127
    if (!ctx->is_nonnull_frame(ctx))
1128 1129
        return buf_size;

1130 1131 1132 1133
    result = ff_set_dimensions(avctx, ctx->planes[0].width, ctx->planes[0].height);
    if (result < 0)
        return result;

1134
    if ((result = ff_get_buffer(avctx, frame, 0)) < 0)
1135 1136 1137
        return result;

    if (ctx->is_scalable) {
1138
        if (ctx->is_indeo4)
1139
            ff_ivi_recompose_haar(&ctx->planes[0], frame->data[0], frame->linesize[0]);
1140
        else
1141
            ff_ivi_recompose53   (&ctx->planes[0], frame->data[0], frame->linesize[0]);
1142
    } else {
1143
        ivi_output_plane(&ctx->planes[0], frame->data[0], frame->linesize[0]);
1144 1145
    }

1146 1147
    ivi_output_plane(&ctx->planes[2], frame->data[1], frame->linesize[1]);
    ivi_output_plane(&ctx->planes[1], frame->data[2], frame->linesize[2]);
1148

1149
    *got_frame = 1;
1150

1151 1152 1153 1154 1155
    /* If the bidirectional mode is enabled, next I and the following P
     * frame will be sent together. Unfortunately the approach below seems
     * to be the only way to handle the B-frames mode.
     * That's exactly the same Intel decoders do.
     */
1156
    if (ctx->is_indeo4 && ctx->frame_type == IVI4_FRAMETYPE_INTRA) {
1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174
        int left;

            // skip version string
        while (get_bits(&ctx->gb, 8)) {
            if (get_bits_left(&ctx->gb) < 8)
                return AVERROR_INVALIDDATA;
        }
        left = get_bits_count(&ctx->gb) & 0x18;
        skip_bits_long(&ctx->gb, 64 - left);
        if (get_bits_left(&ctx->gb) > 18 &&
            show_bits_long(&ctx->gb, 21) == 0xBFFF8) { // syncheader + inter type
            AVPacket pkt;
            pkt.data = avpkt->data + (get_bits_count(&ctx->gb) >> 3);
            pkt.size = get_bits_left(&ctx->gb) >> 3;
            ff_ivi_decode_frame(avctx, ctx->p_frame, &ctx->got_p_frame, &pkt);
        }
    }

1175 1176 1177 1178 1179 1180 1181 1182 1183 1184
    return buf_size;
}

/**
 *  Close Indeo5 decoder and clean up its context.
 */
av_cold int ff_ivi_decode_close(AVCodecContext *avctx)
{
    IVI45DecContext *ctx = avctx->priv_data;

1185
    ivi_free_buffers(&ctx->planes[0]);
1186 1187 1188 1189 1190

    if (ctx->mb_vlc.cust_tab.table)
        ff_free_vlc(&ctx->mb_vlc.cust_tab);

#if IVI4_STREAM_ANALYSER
1191
    if (ctx->is_indeo4) {
1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206
    if (ctx->is_scalable)
        av_log(avctx, AV_LOG_ERROR, "This video uses scalability mode!\n");
    if (ctx->uses_tiling)
        av_log(avctx, AV_LOG_ERROR, "This video uses local decoding!\n");
    if (ctx->has_b_frames)
        av_log(avctx, AV_LOG_ERROR, "This video contains B-frames!\n");
    if (ctx->has_transp)
        av_log(avctx, AV_LOG_ERROR, "Transparency mode is enabled!\n");
    if (ctx->uses_haar)
        av_log(avctx, AV_LOG_ERROR, "This video uses Haar transform!\n");
    if (ctx->uses_fullpel)
        av_log(avctx, AV_LOG_ERROR, "This video uses fullpel motion vectors!\n");
    }
#endif

1207 1208
    av_frame_free(&ctx->p_frame);

1209 1210 1211
    return 0;
}

1212

1213 1214 1215
/**
 *  Scan patterns shared between indeo4 and indeo5
 */
1216
const uint8_t ff_ivi_vertical_scan_8x8[64] = {
1217 1218 1219 1220 1221 1222 1223 1224 1225 1226
    0,  8, 16, 24, 32, 40, 48, 56,
    1,  9, 17, 25, 33, 41, 49, 57,
    2, 10, 18, 26, 34, 42, 50, 58,
    3, 11, 19, 27, 35, 43, 51, 59,
    4, 12, 20, 28, 36, 44, 52, 60,
    5, 13, 21, 29, 37, 45, 53, 61,
    6, 14, 22, 30, 38, 46, 54, 62,
    7, 15, 23, 31, 39, 47, 55, 63
};

1227
const uint8_t ff_ivi_horizontal_scan_8x8[64] = {
1228 1229 1230 1231 1232 1233 1234 1235 1236 1237
     0,  1,  2,  3,  4,  5,  6,  7,
     8,  9, 10, 11, 12, 13, 14, 15,
    16, 17, 18, 19, 20, 21, 22, 23,
    24, 25, 26, 27, 28, 29, 30, 31,
    32, 33, 34, 35, 36, 37, 38, 39,
    40, 41, 42, 43, 44, 45, 46, 47,
    48, 49, 50, 51, 52, 53, 54, 55,
    56, 57, 58, 59, 60, 61, 62, 63
};

1238
const uint8_t ff_ivi_direct_scan_4x4[16] = {
1239 1240 1241 1242
    0, 1, 4, 8, 5, 2, 3, 6, 9, 12, 13, 10, 7, 11, 14, 15
};


1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598
/**
 *  Run-value (RLE) tables.
 */
const RVMapDesc ff_ivi_rvmap_tabs[9] = {
{   /* MapTab0 */
    5, /* eob_sym */
    2, /* esc_sym */
    /* run table */
    {1,  1,  0,  1,  1,  0,  1,  1,  2,  2,  1,  1,  1,  1,  3,  3,
     1,  1,  2,  2,  1,  1,  4,  4,  1,  1,  1,  1,  2,  2,  5,  5,
     1,  1,  3,  3,  1,  1,  6,  6,  1,  2,  1,  2,  7,  7,  1,  1,
     8,  8,  1,  1,  4,  2,  1,  4,  2,  1,  3,  3,  1,  1,  1,  9,
     9,  1,  2,  1,  2,  1,  5,  5,  1,  1, 10, 10,  1,  1,  3,  3,
     2,  2,  1,  1, 11, 11,  6,  4,  4,  1,  6,  1,  2,  1,  2, 12,
     8,  1, 12,  7,  8,  7,  1, 16,  1, 16,  1,  3,  3, 13,  1, 13,
     2,  2,  1, 15,  1,  5, 14, 15,  1,  5, 14,  1, 17,  8, 17,  8,
     1,  4,  4,  2,  2,  1, 25, 25, 24, 24,  1,  3,  1,  3,  1,  8,
     6,  7,  6,  1, 18,  8, 18,  1,  7, 23,  2,  2, 23,  1,  1, 21,
    22,  9,  9, 22, 19,  1, 21,  5, 19,  5,  1, 33, 20, 33, 20,  8,
     4,  4,  1, 32,  2,  2,  8,  3, 32, 26,  3,  1,  7,  7, 26,  6,
     1,  6,  1,  1, 16,  1, 10,  1, 10,  2, 16, 29, 28,  2, 29, 28,
     1, 27,  5,  8,  5, 27,  1,  8,  3,  7,  3, 31, 41, 31,  1, 41,
     6,  1,  6,  7,  4,  4,  1,  1,  2,  1,  2, 11, 34, 30, 11,  1,
    30, 15, 15, 34, 36, 40, 36, 40, 35, 35, 37, 37, 39, 39, 38, 38},

    /* value table */
    { 1,  -1,   0,   2,  -2,   0,   3,  -3,   1,  -1,   4,  -4,   5,  -5,   1,  -1,
      6,  -6,   2,  -2,   7,  -7,   1,  -1,   8,  -8,   9,  -9,   3,  -3,   1,  -1,
     10, -10,   2,  -2,  11, -11,   1,  -1,  12,   4, -12,  -4,   1,  -1,  13, -13,
      1,  -1,  14, -14,   2,   5,  15,  -2,  -5, -15,  -3,   3,  16, -16,  17,   1,
     -1, -17,   6,  18,  -6, -18,   2,  -2,  19, -19,   1,  -1,  20, -20,   4,  -4,
      7,  -7,  21, -21,   1,  -1,   2,   3,  -3,  22,  -2, -22,   8,  23,  -8,   1,
      2, -23,  -1,   2,  -2,  -2,  24,   1, -24,  -1,  25,   5,  -5,   1, -25,  -1,
      9,  -9,  26,   1, -26,   3,   1,  -1,  27,  -3,  -1, -27,   1,   3,  -1,  -3,
     28,  -4,   4,  10, -10, -28,   1,  -1,   1,  -1,  29,   6, -29,  -6,  30,  -4,
      3,   3,  -3, -30,   1,   4,  -1,  31,  -3,   1,  11, -11,  -1, -31,  32,  -1,
     -1,   2,  -2,   1,   1, -32,   1,   4,  -1,  -4,  33,  -1,   1,   1,  -1,   5,
      5,  -5, -33,  -1, -12,  12,  -5,  -7,   1,   1,   7,  34,   4,  -4,  -1,   4,
    -34,  -4,  35,  36,  -2, -35,  -2, -36,   2,  13,   2,  -1,   1, -13,   1,  -1,
     37,   1,  -5,   6,   5,  -1,  38,  -6,  -8,   5,   8,  -1,   1,   1, -37,  -1,
      5,  39,  -5,  -5,   6,  -6, -38, -39, -14,  40,  14,   2,   1,   1,  -2, -40,
     -1,  -2,   2,  -1,  -1,  -1,   1,   1,   1,  -1,   1,  -1,   1,  -1,   1,  -1}
},{
    /* MapTab1 */
    0,  /* eob_sym */
    38, /* esc_sym */
    /* run table */
    {0,  1,  1,  2,  2,  3,  3,  4,  4,  5,  5,  6,  8,  6,  8,  7,
     7,  9,  9, 10, 10, 11, 11,  1, 12,  1, 12, 13, 13, 16, 14, 16,
    14, 15, 15, 17, 17, 18,  0, 18, 19, 20, 21, 19, 22, 21, 20, 22,
    25, 24,  2, 25, 24, 23, 23,  2, 26, 28, 26, 28, 29, 27, 29, 27,
    33, 33,  1, 32,  1,  3, 32, 30, 36,  3, 36, 30, 31, 31, 35, 34,
    37, 41, 34, 35, 37,  4, 41,  4, 49,  8,  8, 49, 40, 38,  5, 38,
    40, 39,  5, 39, 42, 43, 42,  7, 57,  6, 43, 44,  6, 50,  7, 44,
    57, 48, 50, 48, 45, 45, 46, 47, 51, 46, 47, 58,  1, 51, 58,  1,
    52, 59, 53,  9, 52, 55, 55, 59, 53, 56, 54, 56, 54,  9, 64, 64,
    60, 63, 60, 63, 61, 62, 61, 62,  2, 10,  2, 10, 11,  1, 11, 13,
    12,  1, 12, 13, 16, 16,  8,  8, 14,  3,  3, 15, 14, 15,  4,  4,
     1, 17, 17,  5,  1,  7,  7,  5,  6,  1,  2,  2,  6, 22,  1, 25,
    21, 22,  8, 24,  1, 21, 25, 24,  8, 18, 18, 23,  9, 20, 23, 33,
    29, 33, 20,  1, 19,  1, 29, 36,  9, 36, 19, 41, 28, 57, 32,  3,
    28,  3,  1, 27, 49, 49,  1, 32, 26, 26,  2,  4,  4,  7, 57, 41,
     2,  7, 10,  5, 37, 16, 10, 27,  8,  8, 13, 16, 37, 13,  1,  5},

    /* value table */
    {0,   1,  -1,   1,  -1,   1,  -1,   1,  -1,   1,  -1,   1,   1,  -1,  -1,   1,
    -1,   1,  -1,   1,  -1,   1,  -1,   2,   1,  -2,  -1,   1,  -1,   1,   1,  -1,
    -1,   1,  -1,   1,  -1,   1,   0,  -1,   1,   1,   1,  -1,   1,  -1,  -1,  -1,
     1,   1,   2,  -1,  -1,   1,  -1,  -2,   1,   1,  -1,  -1,   1,   1,  -1,  -1,
     1,  -1,   3,   1,  -3,   2,  -1,   1,   1,  -2,  -1,  -1,  -1,   1,   1,   1,
     1,   1,  -1,  -1,  -1,   2,  -1,  -2,   1,   2,  -2,  -1,   1,   1,   2,  -1,
    -1,   1,  -2,  -1,   1,   1,  -1,   2,   1,   2,  -1,   1,  -2,  -1,  -2,  -1,
    -1,   1,   1,  -1,   1,  -1,   1,   1,   1,  -1,  -1,   1,   4,  -1,  -1,  -4,
     1,   1,   1,   2,  -1,  -1,   1,  -1,  -1,   1,  -1,  -1,   1,  -2,   1,  -1,
     1,   1,  -1,  -1,   1,   1,  -1,  -1,   3,   2,  -3,  -2,   2,   5,  -2,   2,
     2,  -5,  -2,  -2,  -2,   2,  -3,   3,   2,   3,  -3,   2,  -2,  -2,   3,  -3,
     6,   2,  -2,   3,  -6,   3,  -3,  -3,   3,   7,  -4,   4,  -3,   2,  -7,   2,
     2,  -2,  -4,   2,   8,  -2,  -2,  -2,   4,   2,  -2,   2,   3,   2,  -2,  -2,
     2,   2,  -2,  -8,  -2,   9,  -2,   2,  -3,  -2,   2,  -2,   2,   2,   2,   4,
    -2,  -4,  10,   2,   2,  -2,  -9,  -2,   2,  -2,   5,   4,  -4,   4,  -2,   2,
    -5,  -4,  -3,   4,   2,  -3,   3,  -2,  -5,   5,   3,   3,  -2,  -3, -10,  -4}
},{
    /* MapTab2 */
    2,  /* eob_sym */
    11, /* esc_sym */
    /* run table */
    {1,  1,  0,  2,  2,  1,  1,  3,  3,  4,  4,  0,  1,  1,  5,  5,
     2,  2,  6,  6,  7,  7,  1,  8,  1,  8,  3,  3,  9,  9,  1,  2,
     2,  1,  4, 10,  4, 10, 11, 11,  1,  5, 12, 12,  1,  5, 13, 13,
     3,  3,  6,  6,  2,  2, 14, 14, 16, 16, 15,  7, 15,  8,  8,  7,
     1,  1, 17, 17,  4,  4,  1,  1, 18, 18,  2,  2,  5,  5, 25,  3,
     9,  3, 25,  9, 19, 24, 19, 24,  1, 21, 20,  1, 21, 22, 20, 22,
    23, 23,  8,  6, 33,  6,  8, 33,  7,  7, 26, 26,  1, 32,  1, 32,
    28,  4, 28, 10, 29, 27, 27, 10, 41,  4, 29,  2,  2, 41, 36, 31,
    49, 31, 34, 30, 34, 36, 30, 35,  1, 49, 11,  5, 35, 11,  1,  3,
     3,  5, 37, 37,  8, 40,  8, 40, 12, 12, 42, 42,  1, 38, 16, 57,
     1,  6, 16, 39, 38,  6,  7,  7, 13, 13, 39, 43,  2, 43, 57,  2,
    50,  9, 44,  9, 50,  4, 15, 48, 44,  4,  1, 15, 48, 14, 14,  1,
    45, 45,  8,  3,  5,  8, 51, 47,  3, 46, 46, 47,  5, 51,  1, 17,
    17, 58,  1, 58,  2, 52, 52,  2, 53,  7, 59,  6,  6, 56, 53, 55,
     7, 55,  1, 54, 59, 56, 54, 10,  1, 10,  4, 60,  1, 60,  8,  4,
     8, 64, 64, 61,  1, 63,  3, 63, 62, 61,  5, 11,  5,  3, 11, 62},

    /* value table */
    { 1,  -1,   0,   1,  -1,   2,  -2,   1,  -1,   1,  -1,   0,   3,  -3,   1,  -1,
      2,  -2,   1,  -1,   1,  -1,   4,   1,  -4,  -1,   2,  -2,   1,  -1,   5,   3,
     -3,  -5,   2,   1,  -2,  -1,   1,  -1,   6,   2,   1,  -1,  -6,  -2,   1,  -1,
      3,  -3,   2,  -2,   4,  -4,   1,  -1,   1,  -1,   1,   2,  -1,   2,  -2,  -2,
      7,  -7,   1,  -1,   3,  -3,   8,  -8,   1,  -1,   5,  -5,   3,  -3,   1,   4,
      2,  -4,  -1,  -2,   1,   1,  -1,  -1,   9,   1,   1,  -9,  -1,   1,  -1,  -1,
      1,  -1,   3,  -3,   1,   3,  -3,  -1,   3,  -3,   1,  -1,  10,   1, -10,  -1,
      1,   4,  -1,   2,   1,  -1,   1,  -2,   1,  -4,  -1,   6,  -6,  -1,   1,   1,
      1,  -1,   1,   1,  -1,  -1,  -1,   1,  11,  -1,  -2,   4,  -1,   2, -11,   5,
     -5,  -4,  -1,   1,   4,   1,  -4,  -1,  -2,   2,   1,  -1,  12,   1,  -2,   1,
    -12,   4,   2,   1,  -1,  -4,   4,  -4,   2,  -2,  -1,   1,   7,  -1,  -1,  -7,
     -1,  -3,   1,   3,   1,   5,   2,   1,  -1,  -5,  13,  -2,  -1,   2,  -2, -13,
      1,  -1,   5,   6,   5,  -5,   1,   1,  -6,   1,  -1,  -1,  -5,  -1,  14,   2,
     -2,   1, -14,  -1,   8,   1,  -1,  -8,   1,   5,   1,   5,  -5,   1,  -1,   1,
     -5,  -1,  15,   1,  -1,  -1,  -1,   3, -15,  -3,   6,   1,  16,  -1,   6,  -6,
     -6,   1,  -1,   1, -16,   1,   7,  -1,   1,  -1,  -6,  -3,   6,  -7,   3,  -1}
},{
    /* MapTab3 */
    0,  /* eob_sym */
    35, /* esc_sym */
    /* run table */
    {0,  1,  1,  2,  2,  3,  3,  4,  4,  1,  1,  5,  5,  6,  6,  7,
     7,  8,  8,  9,  9,  2,  2, 10, 10,  1,  1, 11, 11, 12, 12,  3,
     3, 13, 13,  0, 14, 14, 16, 15, 16, 15,  4,  4, 17,  1, 17,  1,
     5,  5, 18, 18,  2,  2,  6,  6,  8, 19,  7,  8,  7, 19, 20, 20,
    21, 21, 22, 24, 22, 24, 23, 23,  1,  1, 25, 25,  3,  3, 26, 26,
     9,  9, 27, 27, 28, 28, 33, 29,  4, 33, 29,  1,  4,  1, 32, 32,
     2,  2, 31, 10, 30, 10, 30, 31, 34, 34,  5,  5, 36, 36, 35, 41,
    35, 11, 41, 11, 37,  1,  8,  8, 37,  6,  1,  6, 40,  7,  7, 40,
    12, 38, 12, 39, 39, 38, 49, 13, 49, 13,  3, 42,  3, 42, 16, 16,
    43, 43, 14, 14,  1,  1, 44, 15, 44, 15,  2,  2, 57, 48, 50, 48,
    57, 50,  4, 45, 45,  4, 46, 47, 47, 46,  1, 51,  1, 17, 17, 51,
     8,  9,  9,  5, 58,  8, 58,  5, 52, 52, 55, 56, 53, 56, 55, 59,
    59, 53, 54,  1,  6, 54,  7,  7,  6,  1,  2,  3,  2,  3, 64, 60,
    60, 10, 10, 64, 61, 62, 61, 63,  1, 63, 62,  1, 18, 24, 18,  4,
    25,  4,  8, 21, 21,  1, 24, 22, 25, 22,  8, 11, 19, 11, 23,  1,
    20, 23, 19, 20,  5, 12,  5,  1, 16,  2, 12, 13,  2, 13,  1, 16},

    /* value table */
    { 0,   1,  -1,   1,  -1,   1,  -1,   1,  -1,   2,  -2,   1,  -1,   1,  -1,   1,
     -1,   1,  -1,   1,  -1,   2,  -2,   1,  -1,   3,  -3,   1,  -1,   1,  -1,   2,
     -2,   1,  -1,   0,   1,  -1,   1,   1,  -1,  -1,   2,  -2,   1,   4,  -1,  -4,
      2,  -2,   1,  -1,  -3,   3,   2,  -2,   2,   1,   2,  -2,  -2,  -1,   1,  -1,
      1,  -1,   1,   1,  -1,  -1,   1,  -1,   5,  -5,   1,  -1,   3,  -3,   1,  -1,
      2,  -2,   1,  -1,   1,  -1,   1,   1,   3,  -1,  -1,   6,  -3,  -6,  -1,   1,
      4,  -4,   1,   2,   1,  -2,  -1,  -1,   1,  -1,   3,  -3,   1,  -1,   1,   1,
     -1,   2,  -1,  -2,   1,   7,  -3,   3,  -1,   3,  -7,  -3,   1,  -3,   3,  -1,
      2,   1,  -2,   1,  -1,  -1,   1,   2,  -1,  -2,  -4,  -1,   4,   1,   2,  -2,
      1,  -1,  -2,   2,   8,  -8,  -1,   2,   1,  -2,  -5,   5,   1,  -1,  -1,   1,
     -1,   1,   4,  -1,   1,  -4,  -1,  -1,   1,   1,   9,   1,  -9,   2,  -2,  -1,
     -4,   3,  -3,  -4,  -1,   4,   1,   4,   1,  -1,   1,  -1,   1,   1,  -1,   1,
     -1,  -1,  -1,  10,   4,   1,   4,  -4,  -4, -10,   6,   5,  -6,  -5,   1,  -1,
      1,   3,  -3,  -1,   1,  -1,  -1,  -1,  11,   1,   1, -11,  -2,  -2,   2,   5,
     -2,  -5,  -5,   2,  -2,  12,   2,  -2,   2,   2,   5,  -3,  -2,   3,  -2, -12,
     -2,   2,   2,   2,  -5,   3,   5,  13,  -3,   7,  -3,  -3,  -7,   3, -13,   3}
},{
    /* MapTab4 */
    0,  /* eob_sym */
    34, /* esc_sym */
    /* run table */
    {0,  1,  1,  1,  2,  2,  1,  3,  3,  1,  1,  1,  4,  4,  1,  5,
     2,  1,  5,  2,  1,  1,  6,  6,  1,  1,  1,  1,  1,  7,  3,  1,
     2,  3,  0,  1,  2,  7,  1,  1,  1,  8,  1,  1,  8,  1,  1,  1,
     9,  1,  9,  1,  2,  1,  1,  2,  1,  1, 10,  4,  1, 10,  1,  4,
     1,  1,  1,  1,  1,  3,  1,  1,  1,  3,  2,  1,  5,  1,  1,  1,
     2,  5,  1, 11,  1, 11,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
     2,  1,  6,  1,  6,  1,  1,  2,  1,  1,  1,  1,  1,  1,  1, 12,
     3,  1, 12,  1,  1,  1,  2,  1,  1,  3,  1,  1,  1,  1,  1,  1,
     4,  1,  1,  1,  2,  1,  1,  4,  1,  1,  1,  1,  1,  1,  2,  1,
     1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  3,  1,  2,  1,  1,  5,
     1,  1,  1,  1,  1,  7,  1,  7,  1,  1,  2,  3,  1,  1,  1,  1,
     5,  1,  1,  1,  1,  1,  1,  2, 13,  1,  1,  1,  1,  1,  1,  1,
     1,  1,  1,  1,  1,  1,  1,  1, 13,  2,  1,  1,  4,  1,  1,  1,
     3,  1,  6,  1,  1,  1, 14,  1,  1,  1,  1,  1, 14,  6,  1,  1,
     1,  1, 15,  2,  4,  1,  2,  3, 15,  1,  1,  1,  8,  1,  1,  8,
     1,  1,  1,  1,  1,  1,  1,  1,  2,  1,  1,  1,  1,  1,  1,  1},

    /* value table */
    { 0,   1,  -1,   2,   1,  -1,  -2,   1,  -1,   3,  -3,   4,   1,  -1,  -4,   1,
      2,   5,  -1,  -2,  -5,   6,   1,  -1,  -6,   7,  -7,   8,  -8,   1,   2,   9,
      3,  -2,   0,  -9,  -3,  -1,  10, -10,  11,   1, -11,  12,  -1, -12,  13, -13,
      1,  14,  -1, -14,   4,  15, -15,  -4,  16, -16,   1,   2,  17,  -1, -17,  -2,
     18, -18,  19, -19,  20,   3, -20,  21, -21,  -3,   5,  22,   2, -22, -23,  23,
     -5,  -2,  24,   1, -24,  -1,  25, -25,  26, -26, -27,  27,  28,  29, -28, -29,
      6,  30,   2, -31,  -2, -30,  31,  -6, -32,  32,  33, -33,  34, -35, -34,   1,
      4, -36,  -1,  35,  37,  36,   7, -37,  38,  -4, -38,  39,  41,  40, -40, -39,
      3,  42, -43, -41,  -7, -42,  43,  -3,  44, -44,  45, -45,  46,  47,   8, -47,
    -48, -46,  50, -50,  48,  49,  51, -49,  52, -52,   5, -51,  -8, -53,  53,   3,
    -56,  56,  55,  54, -54,   2,  60,  -2, -55,  58,   9,  -5,  59,  57, -57, -63,
     -3, -58, -60, -61,  61, -59, -62,  -9,   1,  64,  62,  69, -64,  63,  65, -67,
    -68,  66, -65,  68, -66, -69,  67, -70,  -1,  10,  71, -71,   4,  73,  72,  70,
      6, -76,  -3,  74, -78, -74,   1,  78,  80, -72, -75,  76,  -1,   3, -73,  79,
     75,  77,   1,  11,  -4, -79, -10,  -6,  -1, -77, -83, -80,   2,  81, -84,  -2,
     83, -81,  82, -82,  84, -87, -86,  85, -11, -85,  86, -89,  87, -88,  88,  89}
},{
    /* MapTab5 */
    2,  /* eob_sym */
    33, /* esc_sym */
    /* run table */
    {1,  1,  0,  2,  1,  2,  1,  3,  3,  1,  1,  4,  4,  2,  2,  1,
     1,  5,  5,  6,  1,  6,  1,  7,  7,  3,  3,  2,  8,  2,  8,  1,
     1,  0,  9,  9,  1,  1, 10,  4, 10,  4, 11, 11,  2,  1,  2,  1,
    12, 12,  3,  3,  1,  1, 13,  5,  5, 13, 14,  1,  1, 14,  2,  2,
     6,  6, 15,  1,  1, 15, 16,  4,  7, 16,  4,  7,  1,  1,  3,  3,
     8,  8,  2,  2,  1,  1, 17, 17,  1,  1, 18, 18,  5,  5,  2,  2,
     1,  1,  9, 19,  9, 19, 20,  3,  3, 20,  1, 10, 21,  1, 10,  4,
     4, 21, 22,  6,  6, 22,  1,  1, 23, 24,  2,  2, 23, 24, 11,  1,
     1, 11,  7, 25,  7,  1,  1, 25,  8,  8,  3, 26,  3,  1, 12,  2,
     2, 26,  1, 12,  5,  5, 27,  4,  1,  4,  1, 27, 28,  1, 28, 13,
     1, 13,  2, 29,  2,  1, 32,  6,  1, 30, 14, 29, 14,  6,  3, 31,
     3,  1, 30,  1, 32, 31, 33,  9, 33,  1,  1,  7,  9,  7,  2,  2,
     1,  1,  4, 36, 34,  4,  5, 10, 10,  5, 34,  1,  1, 35,  8,  8,
    36,  3, 35,  1, 15,  3,  2,  1, 16, 15, 16,  2, 37,  1, 37,  1,
     1,  1,  6,  6, 38,  1, 38, 11,  1, 39, 39, 40, 11,  2, 41,  4,
    40,  1,  2,  4,  1,  1,  1, 41,  3,  1,  3,  1,  5,  7,  5,  7},

    /* value table */
    { 1,  -1,   0,   1,   2,  -1,  -2,   1,  -1,   3,  -3,   1,  -1,   2,  -2,   4,
     -4,   1,  -1,   1,   5,  -1,  -5,   1,  -1,   2,  -2,   3,   1,  -3,  -1,   6,
     -6,   0,   1,  -1,   7,  -7,   1,   2,  -1,  -2,   1,  -1,   4,   8,  -4,  -8,
      1,  -1,   3,  -3,   9,  -9,   1,   2,  -2,  -1,   1,  10, -10,  -1,   5,  -5,
      2,  -2,   1,  11, -11,  -1,   1,   3,   2,  -1,  -3,  -2,  12, -12,   4,  -4,
      2,  -2,  -6,   6,  13, -13,   1,  -1,  14, -14,   1,  -1,   3,  -3,   7,  -7,
     15, -15,   2,   1,  -2,  -1,   1,   5,  -5,  -1, -16,   2,   1,  16,  -2,   4,
     -4,  -1,   1,   3,  -3,  -1,  17, -17,   1,   1,  -8,   8,  -1,  -1,   2,  18,
    -18,  -2,   3,   1,  -3,  19, -19,  -1,   3,  -3,   6,   1,  -6,  20,   2,   9,
     -9,  -1, -20,  -2,   4,  -4,   1,  -5,  21,   5, -21,  -1,   1, -22,  -1,   2,
     22,  -2,  10,   1, -10,  23,   1,   4, -23,   1,   2,  -1,  -2,  -4,  -7,   1,
      7, -24,  -1,  24,  -1,  -1,   1,   3,  -1, -25,  25,   4,  -3,  -4,  11, -11,
     26, -26,   6,   1,   1,  -6,  -5,  -3,   3,   5,  -1, -27,  27,   1,   4,  -4,
     -1,  -8,  -1,  28,   2,   8, -12, -28,  -2,  -2,   2,  12,  -1,  29,   1, -29,
     30, -30,   5,  -5,   1, -31,  -1,   3,  31,  -1,   1,   1,  -3, -13,   1,  -7,
     -1, -32,  13,   7,  32,  33, -33,  -1,  -9, -34,   9,  34,  -6,   5,   6,  -5}
},{
    /* MapTab6 */
    2,  /* eob_sym */
    13, /* esc_sym */
    /* run table */
    {1,  1,  0,  1,  1,  2,  2,  1,  1,  3,  3,  1,  1,  0,  2,  2,
     4,  1,  4,  1,  1,  1,  5,  5,  1,  1,  6,  6,  2,  2,  1,  1,
     3,  3,  7,  7,  1,  1,  8,  8,  1,  1,  2,  2,  1,  9,  1,  9,
     4,  4, 10,  1,  1, 10,  1,  1, 11, 11,  3,  3,  1,  2,  1,  2,
     1,  1, 12, 12,  5,  5,  1,  1, 13,  1,  1, 13,  2,  2,  1,  1,
     6,  6,  1,  1,  4, 14,  4, 14,  3,  1,  3,  1,  1,  1, 15,  7,
    15,  2,  2,  7,  1,  1,  1,  8,  1,  8, 16, 16,  1,  1,  1,  1,
     2,  1,  1,  2,  1,  1,  3,  5,  5,  3,  4,  1,  1,  4,  1,  1,
    17, 17,  9,  1,  1,  9,  2,  2,  1,  1, 10, 10,  1,  6,  1,  1,
     6, 18,  1,  1, 18,  1,  1,  1,  2,  2,  3,  1,  3,  1,  1,  1,
     4,  1, 19,  1, 19,  7,  1,  1, 20,  1,  4, 20,  1,  7, 11,  2,
     1, 11, 21,  2,  8,  5,  1,  8,  1,  5, 21,  1,  1,  1, 22,  1,
     1, 22,  1,  1,  3,  3,  1, 23,  2, 12, 24,  1,  1,  2,  1,  1,
    12, 23,  1,  1, 24,  1,  1,  1,  4,  1,  1,  1,  2,  1,  6,  6,
     4,  2,  1,  1,  1,  1,  1,  1,  1, 14, 13,  3,  1, 25,  9, 25,
    14,  1,  9,  3, 13,  1,  1,  1,  1,  1, 10,  1,  1,  2, 10,  2},

    /* value table */
    {-20,  -1,   0,   2,  -2,   1,  -1,   3,  -3,   1,  -1,   4,  -4,   0,   2,  -2,
       1,   5,  -1,  -5,   6,  -6,   1,  -1,   7,  -7,   1,  -1,   3,  -3,   8,  -8,
       2,  -2,   1,  -1,   9,  -9,   1,  -1,  10, -10,   4,  -4,  11,   1, -11,  -1,
       2,  -2,   1,  12, -12,  -1,  13, -13,   1,  -1,   3,  -3,  14,   5, -14,  -5,
     -15,  15,  -1,   1,   2,  -2,  16, -16,   1,  17, -17,  -1,   6,  -6,  18, -18,
       2,  -2, -19,  19,  -3,   1,   3,  -1,   4,  20,  -4,   1, -21,  21,   1,   2,
      -1,  -7,   7,  -2,  22, -22,  23,   2, -23,  -2,   1,  -1, -24,  24, -25,  25,
      -8, -26,  26,   8, -27,  27,   5,   3,  -3,  -5,  -4,  28, -28,   4,  29, -29,
       1,  -1,  -2, -30,  30,   2,   9,  -9, -31,  31,   2,  -2, -32,   3,  32, -33,
      -3,   1,  33, -34,  -1,  34, -35,  35, -10,  10,  -6,  36,   6, -36,  37, -37,
      -5,  38,   1, -38,  -1,   3,  39, -39,  -1,  40,   5,   1, -40,  -3,   2, -11,
     -41,  -2,   1,  11,  -3,  -4,  41,   3,  42,   4,  -1, -43, -42,  43,   1, -44,
      45,  -1,  44, -45,  -7,   7, -46,   1, -12,   2,   1, -47,  46,  12,  47,  48,
      -2,  -1, -48,  49,  -1, -50, -49,  50,  -6, -51,  51,  52, -13,  53,  -4,   4,
       6,  13, -53, -52, -54,  55,  54, -55, -56,  -2,   2,  -8,  56,   1,  -3,  -1,
       2,  58,   3,   8,  -2,  57, -58, -60, -59, -57,  -3,  60,  59, -14,   3,  14}
},{
    /* MapTab7 */
    2,  /* eob_sym */
    38, /* esc_sym */
    /* run table */
    {1,  1,  0,  2,  2,  1,  1,  3,  3,  4,  4,  5,  5,  1,  1,  6,
     6,  2,  2,  7,  7,  8,  8,  1,  1,  3,  3,  9,  9, 10, 10,  1,
     1,  2,  2,  4,  4, 11,  0, 11, 12, 12, 13, 13,  1,  1,  5,  5,
    14, 14, 15, 16, 15, 16,  3,  3,  1,  6,  1,  6,  2,  2,  7,  7,
     8,  8, 17, 17,  1,  1,  4,  4, 18, 18,  2,  2,  1, 19,  1, 20,
    19, 20, 21, 21,  3,  3, 22, 22,  5,  5, 24,  1,  1, 23,  9, 23,
    24,  9,  2,  2, 10,  1,  1, 10,  6,  6, 25,  4,  4, 25,  7,  7,
    26,  8,  1,  8,  3,  1, 26,  3, 11, 11, 27, 27,  2, 28,  1,  2,
    28,  1, 12, 12,  5,  5, 29, 13, 13, 29, 32,  1,  1, 33, 31, 30,
    32,  4, 30, 33,  4, 31,  3, 14,  1,  1,  3, 34, 34,  2,  2, 14,
     6,  6, 35, 36, 35, 36,  1, 15,  1, 16, 16, 15,  7,  9,  7,  9,
    37,  8,  8, 37,  1,  1, 39,  2, 38, 39,  2, 40,  5, 38, 40,  5,
     3,  3,  4,  4, 10, 10,  1,  1,  1,  1, 41,  2, 41,  2,  6,  6,
     1,  1, 11, 42, 11, 43,  3, 42,  3, 17,  4, 43,  1, 17,  7,  1,
     8, 44,  4,  7, 44,  5,  8,  2,  5,  1,  2, 48, 45,  1, 12, 45,
    12, 48, 13, 13,  1,  9,  9, 46,  1, 46, 47, 47, 49, 18, 18, 49},

    /* value table */
    { 1,  -1,   0,   1,  -1,   2,  -2,   1,  -1,   1,  -1,   1,  -1,   3,  -3,   1,
     -1,  -2,   2,   1,  -1,   1,  -1,   4,  -4,  -2,   2,   1,  -1,   1,  -1,   5,
     -5,  -3,   3,   2,  -2,   1,   0,  -1,   1,  -1,   1,  -1,   6,  -6,   2,  -2,
      1,  -1,   1,   1,  -1,  -1,  -3,   3,   7,   2,  -7,  -2,  -4,   4,   2,  -2,
      2,  -2,   1,  -1,   8,  -8,   3,  -3,   1,  -1,  -5,   5,   9,   1,  -9,   1,
     -1,  -1,   1,  -1,  -4,   4,   1,  -1,   3,  -3,   1, -10,  10,   1,   2,  -1,
     -1,  -2,   6,  -6,   2,  11, -11,  -2,   3,  -3,   1,  -4,   4,  -1,   3,  -3,
      1,   3,  12,  -3,  -5, -12,  -1,   5,   2,  -2,   1,  -1,  -7,   1,  13,   7,
     -1, -13,   2,  -2,   4,  -4,   1,   2,  -2,  -1,   1,  14, -14,   1,   1,   1,
     -1,  -5,  -1,  -1,   5,  -1,  -6,   2, -15,  15,   6,   1,  -1,  -8,   8,  -2,
     -4,   4,   1,   1,  -1,  -1,  16,   2, -16,  -2,   2,  -2,   4,   3,  -4,  -3,
     -1,  -4,   4,   1, -17,  17,  -1,  -9,   1,   1,   9,   1,  -5,  -1,  -1,   5,
     -7,   7,   6,  -6,   3,  -3,  18, -18,  19, -19,   1, -10,  -1,  10,  -5,   5,
     20, -20,  -3,   1,   3,   1,   8,  -1,  -8,   2,   7,  -1, -21,  -2,   5,  21,
      5,  -1,  -7,  -5,   1,  -6,  -5, -11,   6,  22,  11,   1,   1, -22,  -3,  -1,
      3,  -1,   3,  -3, -23,   4,  -4,   1,  23,  -1,   1,  -1,   1,  -2,   2,  -1}
},{
    /* MapTab8 */
    4,  /* eob_sym */
    11, /* esc_sym */
    /* run table */
    {1,  1,  1,  1,  0,  2,  2,  1,  1,  3,  3,  0,  1,  1,  2,  2,
     4,  4,  1,  1,  5,  5,  1,  1,  2,  2,  3,  3,  6,  6,  1,  1,
     7,  7,  8,  1,  8,  2,  2,  1,  4,  4,  1,  3,  1,  3,  9,  9,
     2,  2,  1,  5,  1,  5, 10, 10,  1,  1, 11, 11,  3,  6,  3,  4,
     4,  6,  2,  2,  1, 12,  1, 12,  7, 13,  7, 13,  1,  1,  8,  8,
     2,  2, 14, 14, 16, 15, 16,  5,  5,  1,  3, 15,  1,  3,  4,  4,
     1,  1, 17, 17,  2,  2,  6,  6,  1, 18,  1, 18, 22, 21, 22, 21,
    25, 24, 25, 19,  9, 20,  9, 23, 19, 24, 20,  3, 23,  7,  3,  1,
     1,  7, 28, 26, 29,  5, 28, 26,  5,  8, 29,  4,  8, 27,  2,  2,
     4, 27,  1,  1, 10, 36, 10, 33, 33, 36, 30,  1, 32, 32,  1, 30,
     6, 31, 31, 35,  3,  6, 11, 11,  3,  2, 35,  2, 34,  1, 34,  1,
    37, 37, 12,  7, 12,  5, 41,  5,  4,  7,  1,  8, 13,  4,  1, 41,
    13, 38,  8, 38,  9,  1, 40, 40,  9,  1, 39,  2,  2, 49, 39, 42,
     3,  3, 14, 16, 49, 14, 16, 42, 43, 43,  6,  6, 15,  1,  1, 15,
    44, 44,  1,  1, 50, 48,  4,  5,  4,  7,  5,  2, 10, 10, 48,  7,
    50, 45,  2,  1, 45,  8,  8,  1, 46, 46,  3, 47, 47,  3,  1,  1},

    /* value table */
    { 1,  -1,   2,  -2,   0,   1,  -1,   3,  -3,   1,  -1,   0,   4,  -4,   2,  -2,
      1,  -1,   5,  -5,   1,  -1,   6,  -6,   3,  -3,   2,  -2,   1,  -1,   7,  -7,
      1,  -1,   1,   8,  -1,   4,  -4,  -8,   2,  -2,   9,   3,  -9,  -3,   1,  -1,
      5,  -5,  10,   2, -10,  -2,   1,  -1,  11, -11,   1,  -1,  -4,   2,   4,   3,
     -3,  -2,   6,  -6,  12,   1, -12,  -1,   2,   1,  -2,  -1,  13, -13,   2,  -2,
      7,  -7,   1,  -1,   1,   1,  -1,   3,  -3,  14,   5,  -1, -14,  -5,   4,  -4,
     15, -15,   1,  -1,   8,  -8,  -3,   3,  16,   1, -16,  -1,   1,   1,  -1,  -1,
      1,   1,  -1,   1,   2,   1,  -2,   1,  -1,  -1,  -1,   6,  -1,   3,  -6,  17,
    -17,  -3,   1,   1,   1,   4,  -1,  -1,  -4,   3,  -1,   5,  -3,  -1,  -9,   9,
     -5,   1,  18, -18,   2,   1,  -2,   1,  -1,  -1,   1,  19,  -1,   1, -19,  -1,
      4,   1,  -1,   1,   7,  -4,  -2,   2,  -7,  10,  -1, -10,   1,  20,  -1, -20,
      1,  -1,   2,   4,  -2,   5,   1,  -5,   6,  -4,  21,   4,   2,  -6, -21,  -1,
     -2,   1,  -4,  -1,  -3,  22,  -1,   1,   3, -22,  -1,  11, -11,   1,   1,   1,
      8,  -8,   2,   2,  -1,  -2,  -2,  -1,   1,  -1,  -5,   5,   2,  23, -23,  -2,
      1,  -1,  24, -24,  -1,  -1,   7,   6,  -7,   5,  -6,  12,  -3,   3,   1,  -5,
      1,   1, -12,  25,  -1,  -5,   5, -25,  -1,   1,   9,   1,  -1,  -9,  26, -26}
}
};