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FFmpeg/libavcodec/ivi.c

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  1. /*

  2.  * common functions for Indeo Video Interactive codecs (Indeo4 and Indeo5)

  3.  *

  4.  * Copyright (c) 2009 Maxim Poliakovski

  5.  *

  6.  * This file is part of FFmpeg.

  7.  *

  8.  * FFmpeg is free software; you can redistribute it and/or

  9.  * modify it under the terms of the GNU Lesser General Public

  10.  * License as published by the Free Software Foundation; either

  11.  * version 2.1 of the License, or (at your option) any later version.

  12.  *

  13.  * FFmpeg is distributed in the hope that it will be useful,

  14.  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  15.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

  16.  * Lesser General Public License for more details.

  17.  *

  18.  * You should have received a copy of the GNU Lesser General Public

  19.  * License along with FFmpeg; if not, write to the Free Software

  20.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

  21.  */

  22. 

  23. /**

  24.  * @file

  25.  * This file contains functions and data shared by both Indeo4 and

  26.  * Indeo5 decoders.

  27.  */

  28. 

  29. #include <inttypes.h>

  30. 

  31. #include "libavutil/attributes.h"

  32. #include "libavutil/imgutils.h"

  33. 

  34. #define BITSTREAM_READER_LE

  35. #include "avcodec.h"

  36. #include "get_bits.h"

  37. #include "internal.h"

  38. #include "ivi.h"

  39. #include "ivi_dsp.h"

  40. 

  41. /**

  42.  * These are 2x8 predefined Huffman codebooks for coding macroblock/block

  43.  * signals. They are specified using "huffman descriptors" in order to

  44.  * avoid huge static tables. The decoding tables will be generated at

  45.  * startup from these descriptors.

  46.  */

  47. /** static macroblock huffman tables */

  48. static const IVIHuffDesc ivi_mb_huff_desc[8] = {

  49.     {8,  {0, 4, 5, 4, 4, 4, 6, 6}},

  50.     {12, {0, 2, 2, 3, 3, 3, 3, 5, 3, 2, 2, 2}},

  51.     {12, {0, 2, 3, 4, 3, 3, 3, 3, 4, 3, 2, 2}},

  52.     {12, {0, 3, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2}},

  53.     {13, {0, 4, 4, 3, 3, 3, 3, 2, 3, 3, 2, 1, 1}},

  54.     {9,  {0, 4, 4, 4, 4, 3, 3, 3, 2}},

  55.     {10, {0, 4, 4, 4, 4, 3, 3, 2, 2, 2}},

  56.     {12, {0, 4, 4, 4, 3, 3, 2, 3, 2, 2, 2, 2}}

  57. };

  58. 

  59. /** static block huffman tables */

  60. static const IVIHuffDesc ivi_blk_huff_desc[8] = {

  61.     {10, {1, 2, 3, 4, 4, 7, 5, 5, 4, 1}},

  62.     {11, {2, 3, 4, 4, 4, 7, 5, 4, 3, 3, 2}},

  63.     {12, {2, 4, 5, 5, 5, 5, 6, 4, 4, 3, 1, 1}},

  64.     {13, {3, 3, 4, 4, 5, 6, 6, 4, 4, 3, 2, 1, 1}},

  65.     {11, {3, 4, 4, 5, 5, 5, 6, 5, 4, 2, 2}},

  66.     {13, {3, 4, 5, 5, 5, 5, 6, 4, 3, 3, 2, 1, 1}},

  67.     {13, {3, 4, 5, 5, 5, 6, 5, 4, 3, 3, 2, 1, 1}},

  68.     {9,  {3, 4, 4, 5, 5, 5, 6, 5, 5}}

  69. };

  70. 

  71. static VLC ivi_mb_vlc_tabs [8]; ///< static macroblock Huffman tables

  72. static VLC ivi_blk_vlc_tabs[8]; ///< static block Huffman tables

  73. 

  74. typedef void (*ivi_mc_func) (int16_t *buf, const int16_t *ref_buf,

  75.                              ptrdiff_t pitch, int mc_type);

  76. typedef void (*ivi_mc_avg_func) (int16_t *buf, const int16_t *ref_buf1,

  77.                                  const int16_t *ref_buf2,

  78.                                  ptrdiff_t pitch, int mc_type, int mc_type2);

  79. 

  80. static int ivi_mc(const IVIBandDesc *band, ivi_mc_func mc, ivi_mc_avg_func mc_avg,

  81.                   int offs, int mv_x, int mv_y, int mv_x2, int mv_y2,

  82.                   int mc_type, int mc_type2)

  83. {

  84.     int ref_offs = offs + mv_y * band->pitch + mv_x;

  85.     int buf_size = band->pitch * band->aheight;

  86.     int min_size = band->pitch * (band->blk_size - 1) + band->blk_size;

  87.     int ref_size = (mc_type > 1) * band->pitch + (mc_type & 1);

  88. 

  89.     if (mc_type != -1) {

  90.         av_assert0(offs >= 0 && ref_offs >= 0 && band->ref_buf);

  91.         av_assert0(buf_size - min_size >= offs);

  92.         av_assert0(buf_size - min_size - ref_size >= ref_offs);

  93.     }

  94. 

  95.     if (mc_type2 == -1) {

  96.         mc(band->buf + offs, band->ref_buf + ref_offs, band->pitch, mc_type);

  97.     } else {

  98.         int ref_offs2 = offs + mv_y2 * band->pitch + mv_x2;

  99.         int ref_size2 = (mc_type2 > 1) * band->pitch + (mc_type2 & 1);

  100.         if (offs < 0 || ref_offs2 < 0 || !band->b_ref_buf)

  101.             return AVERROR_INVALIDDATA;

  102.         if (buf_size - min_size - ref_size2 < ref_offs2)

  103.             return AVERROR_INVALIDDATA;

  104. 

  105.         if (mc_type == -1)

  106.             mc(band->buf + offs, band->b_ref_buf + ref_offs2,

  107.                band->pitch, mc_type2);

  108.         else

  109.             mc_avg(band->buf + offs, band->ref_buf + ref_offs,

  110.                    band->b_ref_buf + ref_offs2, band->pitch,

  111.                    mc_type, mc_type2);

  112.     }

  113. 

  114.     return 0;

  115. }

  116. 

  117. /*

  118.  *  Generate a huffman codebook from the given descriptor

  119.  *  and convert it into the FFmpeg VLC table.

  120.  *

  121.  *  @param[in]   cb    pointer to codebook descriptor

  122.  *  @param[out]  vlc   where to place the generated VLC table

  123.  *  @param[in]   flag  flag: 1 - for static or 0 for dynamic tables

  124.  *  @return     result code: 0 - OK, -1 = error (invalid codebook descriptor)

  125.  */

  126. static int ivi_create_huff_from_desc(const IVIHuffDesc *cb, VLC *vlc, int flag)

  127. {

  128.     int         pos, i, j, codes_per_row, prefix, not_last_row;

  129.     uint16_t    codewords[256]; /* FIXME: move this temporal storage out? */

  130.     uint8_t     bits[256];

  131. 

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

  133. 

  134.     for (i = 0; i < cb->num_rows; i++) {

  135.         codes_per_row = 1 << cb->xbits[i];

  136.         not_last_row  = (i != cb->num_rows - 1);

  137.         prefix        = ((1 << i) - 1) << (cb->xbits[i] + not_last_row);

  138. 

  139.         for (j = 0; j < codes_per_row; j++) {

  140.             if (pos >= 256) /* Some Indeo5 codebooks can have more than 256 */

  141.                 break;      /* elements, but only 256 codes are allowed! */

  142. 

  143.             bits[pos] = i + cb->xbits[i] + not_last_row;

  144.             if (bits[pos] > IVI_VLC_BITS)

  145.                 return AVERROR_INVALIDDATA; /* invalid descriptor */

  146. 

  147.             codewords[pos] = prefix | j;

  148.             if (!bits[pos])

  149.                 bits[pos] = 1;

  150. 

  151.             pos++;

  152.         }//for j

  153.     }//for i

  154. 

  155.     /* number of codewords = pos */

  156.     return init_vlc(vlc, IVI_VLC_BITS, pos, bits, 1, 1, codewords, 2, 2,

  157.                     (flag ? INIT_VLC_USE_NEW_STATIC : 0) | INIT_VLC_OUTPUT_LE);

  158. }

  159. 

  160. av_cold void ff_ivi_init_static_vlc(void)

  161. {

  162.     int i;

  163.     static VLC_TYPE table_data[8192 * 16][2];

  164.     static int initialized_vlcs = 0;

  165. 

  166.     if (initialized_vlcs)

  167.         return;

  168.     for (i = 0; i < 8; i++) {

  169.         ivi_mb_vlc_tabs[i].table = table_data + i * 2 * 8192;

  170.         ivi_mb_vlc_tabs[i].table_allocated = 8192;

  171.         ivi_create_huff_from_desc(&ivi_mb_huff_desc[i],

  172.                                   &ivi_mb_vlc_tabs[i], 1);

  173.         ivi_blk_vlc_tabs[i].table = table_data + (i * 2 + 1) * 8192;

  174.         ivi_blk_vlc_tabs[i].table_allocated = 8192;

  175.         ivi_create_huff_from_desc(&ivi_blk_huff_desc[i],

  176.                                   &ivi_blk_vlc_tabs[i], 1);

  177.     }

  178.     initialized_vlcs = 1;

  179. }

  180. 

  181. /*

  182.  *  Copy huffman codebook descriptors.

  183.  *

  184.  *  @param[out]  dst  ptr to the destination descriptor

  185.  *  @param[in]   src  ptr to the source descriptor

  186.  */

  187. static void ivi_huff_desc_copy(IVIHuffDesc *dst, const IVIHuffDesc *src)

  188. {

  189.     dst->num_rows = src->num_rows;

  190.     memcpy(dst->xbits, src->xbits, src->num_rows);

  191. }

  192. 

  193. /*

  194.  *  Compare two huffman codebook descriptors.

  195.  *

  196.  *  @param[in]  desc1  ptr to the 1st descriptor to compare

  197.  *  @param[in]  desc2  ptr to the 2nd descriptor to compare

  198.  *  @return         comparison result: 0 - equal, 1 - not equal

  199.  */

  200. static int ivi_huff_desc_cmp(const IVIHuffDesc *desc1,

  201.                              const IVIHuffDesc *desc2)

  202. {

  203.     return desc1->num_rows != desc2->num_rows ||

  204.            memcmp(desc1->xbits, desc2->xbits, desc1->num_rows);

  205. }

  206. 

  207. int ff_ivi_dec_huff_desc(GetBitContext *gb, int desc_coded, int which_tab,

  208.                          IVIHuffTab *huff_tab, AVCodecContext *avctx)

  209. {

  210.     int i, result;

  211.     IVIHuffDesc new_huff;

  212. 

  213.     if (!desc_coded) {

  214.         /* select default table */

  215.         huff_tab->tab = (which_tab) ? &ivi_blk_vlc_tabs[7]

  216.                                     : &ivi_mb_vlc_tabs [7];

  217.         return 0;

  218.     }

  219. 

  220.     huff_tab->tab_sel = get_bits(gb, 3);

  221.     if (huff_tab->tab_sel == 7) {

  222.         /* custom huffman table (explicitly encoded) */

  223.         new_huff.num_rows = get_bits(gb, 4);

  224.         if (!new_huff.num_rows) {

  225.             av_log(avctx, AV_LOG_ERROR, "Empty custom Huffman table!\n");

  226.             return AVERROR_INVALIDDATA;

  227.         }

  228. 

  229.         for (i = 0; i < new_huff.num_rows; i++)

  230.             new_huff.xbits[i] = get_bits(gb, 4);

  231. 

  232.         /* Have we got the same custom table? Rebuild if not. */

  233.         if (ivi_huff_desc_cmp(&new_huff, &huff_tab->cust_desc) || !huff_tab->cust_tab.table) {

  234.             ivi_huff_desc_copy(&huff_tab->cust_desc, &new_huff);

  235. 

  236.             if (huff_tab->cust_tab.table)

  237.                 ff_free_vlc(&huff_tab->cust_tab);

  238.             result = ivi_create_huff_from_desc(&huff_tab->cust_desc,

  239.                     &huff_tab->cust_tab, 0);

  240.             if (result) {

  241.                 // reset faulty description

  242.                 huff_tab->cust_desc.num_rows = 0;

  243.                 av_log(avctx, AV_LOG_ERROR,

  244.                        "Error while initializing custom vlc table!\n");

  245.                 return result;

  246.             }

  247.         }

  248.         huff_tab->tab = &huff_tab->cust_tab;

  249.     } else {

  250.         /* select one of predefined tables */

  251.         huff_tab->tab = (which_tab) ? &ivi_blk_vlc_tabs[huff_tab->tab_sel]

  252.             : &ivi_mb_vlc_tabs [huff_tab->tab_sel];

  253.     }

  254. 

  255.     return 0;

  256. }

  257. 

  258. /*

  259.  *  Free planes, bands and macroblocks buffers.

  260.  *

  261.  *  @param[in]  planes  pointer to the array of the plane descriptors

  262.  */

  263. static av_cold void ivi_free_buffers(IVIPlaneDesc *planes)

  264. {

  265.     int p, b, t;

  266. 

  267.     for (p = 0; p < 3; p++) {

  268.         if (planes[p].bands)

  269.         for (b = 0; b < planes[p].num_bands; b++) {

  270.             av_freep(&planes[p].bands[b].bufs[0]);

  271.             av_freep(&planes[p].bands[b].bufs[1]);

  272.             av_freep(&planes[p].bands[b].bufs[2]);

  273.             av_freep(&planes[p].bands[b].bufs[3]);

  274. 

  275.             if (planes[p].bands[b].blk_vlc.cust_tab.table)

  276.                 ff_free_vlc(&planes[p].bands[b].blk_vlc.cust_tab);

  277.             for (t = 0; t < planes[p].bands[b].num_tiles; t++)

  278.                 av_freep(&planes[p].bands[b].tiles[t].mbs);

  279.             av_freep(&planes[p].bands[b].tiles);

  280.         }

  281.         av_freep(&planes[p].bands);

  282.         planes[p].num_bands = 0;

  283.     }

  284. }

  285. 

  286. av_cold int ff_ivi_init_planes(AVCodecContext *avctx, IVIPlaneDesc *planes, const IVIPicConfig *cfg,

  287.                                int is_indeo4)

  288. {

  289.     int p, b;

  290.     uint32_t b_width, b_height, align_fac, width_aligned,

  291.              height_aligned, buf_size;

  292.     IVIBandDesc *band;

  293. 

  294.     ivi_free_buffers(planes);

  295. 

  296.     if (av_image_check_size2(cfg->pic_width, cfg->pic_height, avctx->max_pixels, AV_PIX_FMT_YUV410P, 0, avctx) < 0 ||

  297.         cfg->luma_bands < 1 || cfg->chroma_bands < 1)

  298.         return AVERROR_INVALIDDATA;

  299. 

  300.     /* fill in the descriptor of the luminance plane */

  301.     planes[0].width     = cfg->pic_width;

  302.     planes[0].height    = cfg->pic_height;

  303.     planes[0].num_bands = cfg->luma_bands;

  304. 

  305.     /* fill in the descriptors of the chrominance planes */

  306.     planes[1].width     = planes[2].width     = (cfg->pic_width  + 3) >> 2;

  307.     planes[1].height    = planes[2].height    = (cfg->pic_height + 3) >> 2;

  308.     planes[1].num_bands = planes[2].num_bands = cfg->chroma_bands;

  309. 

  310.     for (p = 0; p < 3; p++) {

  311.         planes[p].bands = av_mallocz_array(planes[p].num_bands, sizeof(IVIBandDesc));

  312.         if (!planes[p].bands)

  313.             return AVERROR(ENOMEM);

  314. 

  315.         /* select band dimensions: if there is only one band then it

  316.          *  has the full size, if there are several bands each of them

  317.          *  has only half size */

  318.         b_width  = planes[p].num_bands == 1 ? planes[p].width

  319.                                             : (planes[p].width  + 1) >> 1;

  320.         b_height = planes[p].num_bands == 1 ? planes[p].height

  321.                                             : (planes[p].height + 1) >> 1;

  322. 

  323.         /* luma   band buffers will be aligned on 16x16 (max macroblock size) */

  324.         /* chroma band buffers will be aligned on   8x8 (max macroblock size) */

  325.         align_fac       = p ? 8 : 16;

  326.         width_aligned   = FFALIGN(b_width , align_fac);

  327.         height_aligned  = FFALIGN(b_height, align_fac);

  328.         buf_size        = width_aligned * height_aligned * sizeof(int16_t);

  329. 

  330.         for (b = 0; b < planes[p].num_bands; b++) {

  331.             band = &planes[p].bands[b]; /* select appropriate plane/band */

  332.             band->plane    = p;

  333.             band->band_num = b;

  334.             band->width    = b_width;

  335.             band->height   = b_height;

  336.             band->pitch    = width_aligned;

  337.             band->aheight  = height_aligned;

  338.             av_assert0(!band->bufs[0] && !band->bufs[1] &&

  339.                        !band->bufs[2] && !band->bufs[3]);

  340.             band->bufsize  = buf_size/2;

  341.             av_assert0(buf_size % 2 == 0);

  342. 

  343.             /* reset custom vlc */

  344.             planes[p].bands[0].blk_vlc.cust_desc.num_rows = 0;

  345.         }

  346.     }

  347. 

  348.     return 0;

  349. }

  350. 

  351. static int ivi_init_tiles(const IVIBandDesc *band, IVITile *ref_tile,

  352.                           int p, int b, int t_height, int t_width)

  353. {

  354.     int x, y;

  355.     IVITile *tile = band->tiles;

  356. 

  357.     for (y = 0; y < band->height; y += t_height) {

  358.         for (x = 0; x < band->width; x += t_width) {

  359.             tile->xpos     = x;

  360.             tile->ypos     = y;

  361.             tile->mb_size  = band->mb_size;

  362.             tile->width    = FFMIN(band->width - x,  t_width);

  363.             tile->height   = FFMIN(band->height - y, t_height);

  364.             tile->is_empty = tile->data_size = 0;

  365.             /* calculate number of macroblocks */

  366.             tile->num_MBs  = IVI_MBs_PER_TILE(tile->width, tile->height,

  367.                                               band->mb_size);

  368. 

  369.             av_freep(&tile->mbs);

  370.             tile->mbs = av_mallocz_array(tile->num_MBs, sizeof(IVIMbInfo));

  371.             if (!tile->mbs)

  372.                 return AVERROR(ENOMEM);

  373. 

  374.             tile->ref_mbs = 0;

  375.             if (p || b) {

  376.                 if (tile->num_MBs != ref_tile->num_MBs) {

  377.                     av_log(NULL, AV_LOG_DEBUG, "ref_tile mismatch\n");

  378.                     return AVERROR_INVALIDDATA;

  379.                 }

  380.                 tile->ref_mbs = ref_tile->mbs;

  381.                 ref_tile++;

  382.             }

  383.             tile++;

  384.         }

  385.     }

  386. 

  387.     return 0;

  388. }

  389. 

  390. av_cold int ff_ivi_init_tiles(IVIPlaneDesc *planes,

  391.                               int tile_width, int tile_height)

  392. {

  393.     int p, b, x_tiles, y_tiles, t_width, t_height, ret;

  394.     IVIBandDesc *band;

  395. 

  396.     for (p = 0; p < 3; p++) {

  397.         t_width  = !p ? tile_width  : (tile_width  + 3) >> 2;

  398.         t_height = !p ? tile_height : (tile_height + 3) >> 2;

  399. 

  400.         if (!p && planes[0].num_bands == 4) {

  401.             if (t_width % 2 || t_height % 2) {

  402.                 avpriv_request_sample(NULL, "Odd tiles");

  403.                 return AVERROR_PATCHWELCOME;

  404.             }

  405.             t_width  >>= 1;

  406.             t_height >>= 1;

  407.         }

  408.         if(t_width<=0 || t_height<=0)

  409.             return AVERROR(EINVAL);

  410. 

  411.         for (b = 0; b < planes[p].num_bands; b++) {

  412.             band = &planes[p].bands[b];

  413. 

  414.             if (band->tiles) {

  415.                 int t;

  416.                 for (t = 0; t < band->num_tiles; t++) {

  417.                     av_freep(&band->tiles[t].mbs);

  418.                 }

  419.             }

  420. 

  421.             x_tiles = IVI_NUM_TILES(band->width, t_width);

  422.             y_tiles = IVI_NUM_TILES(band->height, t_height);

  423.             band->num_tiles = x_tiles * y_tiles;

  424. 

  425.             av_freep(&band->tiles);

  426.             band->tiles = av_mallocz_array(band->num_tiles, sizeof(IVITile));

  427.             if (!band->tiles) {

  428.                 band->num_tiles = 0;

  429.                 return AVERROR(ENOMEM);

  430.             }

  431. 

  432.             /* use the first luma band as reference for motion vectors

  433.              * and quant */

  434.             ret = ivi_init_tiles(band, planes[0].bands[0].tiles,

  435.                                  p, b, t_height, t_width);

  436.             if (ret < 0)

  437.                 return ret;

  438.         }

  439.     }

  440. 

  441.     return 0;

  442. }

  443. 

  444. /*

  445.  *  Decode size of the tile data.

  446.  *  The size is stored as a variable-length field having the following format:

  447.  *  if (tile_data_size < 255) than this field is only one byte long

  448.  *  if (tile_data_size >= 255) than this field four is byte long: 0xFF X1 X2 X3

  449.  *  where X1-X3 is size of the tile data

  450.  *

  451.  *  @param[in,out]  gb  the GetBit context

  452.  *  @return     size of the tile data in bytes

  453.  */

  454. static int ivi_dec_tile_data_size(GetBitContext *gb)

  455. {

  456.     int    len;

  457. 

  458.     len = 0;

  459.     if (get_bits1(gb)) {

  460.         len = get_bits(gb, 8);

  461.         if (len == 255)

  462.             len = get_bits(gb, 24);

  463.     }

  464. 

  465.     /* align the bitstream reader on the byte boundary */

  466.     align_get_bits(gb);

  467. 

  468.     return len;

  469. }

  470. 

  471. static int ivi_dc_transform(const IVIBandDesc *band, int *prev_dc, int buf_offs,

  472.                             int blk_size)

  473. {

  474.     band->dc_transform(prev_dc, band->buf + buf_offs,

  475.                        band->pitch, blk_size);

  476. 

  477.     return 0;

  478. }

  479. 

  480. static int ivi_decode_coded_blocks(GetBitContext *gb, const IVIBandDesc *band,

  481.                                    ivi_mc_func mc, ivi_mc_avg_func mc_avg,

  482.                                    int mv_x, int mv_y,

  483.                                    int mv_x2, int mv_y2,

  484.                                    int *prev_dc, int is_intra,

  485.                                    int mc_type, int mc_type2,

  486.                                    uint32_t quant, int offs,

  487.                                    AVCodecContext *avctx)

  488. {

  489.     const uint16_t *base_tab  = is_intra ? band->intra_base : band->inter_base;

  490.     RVMapDesc *rvmap = band->rv_map;

  491.     uint8_t col_flags[8];

  492.     int32_t trvec[64];

  493.     uint32_t sym = 0, lo, hi, q;

  494.     int pos, run, val;

  495.     int blk_size   = band->blk_size;

  496.     int num_coeffs = blk_size * blk_size;

  497.     int col_mask   = blk_size - 1;

  498.     int scan_pos   = -1;

  499.     int min_size   = band->pitch * (band->transform_size - 1) +

  500.                      band->transform_size;

  501.     int buf_size   = band->pitch * band->aheight - offs;

  502. 

  503.     if (min_size > buf_size)

  504.         return AVERROR_INVALIDDATA;

  505. 

  506.     if (!band->scan) {

  507.         av_log(avctx, AV_LOG_ERROR, "Scan pattern is not set.\n");

  508.         return AVERROR_INVALIDDATA;

  509.     }

  510. 

  511.     /* zero transform vector */

  512.     memset(trvec, 0, num_coeffs * sizeof(trvec[0]));

  513.     /* zero column flags */

  514.     memset(col_flags, 0, sizeof(col_flags));

  515.     while (scan_pos <= num_coeffs) {

  516.         sym = get_vlc2(gb, band->blk_vlc.tab->table,

  517.                        IVI_VLC_BITS, 1);

  518.         if (sym == rvmap->eob_sym)

  519.             break; /* End of block */

  520. 

  521.         /* Escape - run/val explicitly coded using 3 vlc codes */

  522.         if (sym == rvmap->esc_sym) {

  523.             run = get_vlc2(gb, band->blk_vlc.tab->table, IVI_VLC_BITS, 1) + 1;

  524.             lo  = get_vlc2(gb, band->blk_vlc.tab->table, IVI_VLC_BITS, 1);

  525.             hi  = get_vlc2(gb, band->blk_vlc.tab->table, IVI_VLC_BITS, 1);

  526.             /* merge them and convert into signed val */

  527.             val = IVI_TOSIGNED((hi << 6) | lo);

  528.         } else {

  529.             if (sym >= 256U) {

  530.                 av_log(avctx, AV_LOG_ERROR, "Invalid sym encountered: %"PRIu32".\n", sym);

  531.                 return AVERROR_INVALIDDATA;

  532.             }

  533.             run = rvmap->runtab[sym];

  534.             val = rvmap->valtab[sym];

  535.         }

  536. 

  537.         /* de-zigzag and dequantize */

  538.         scan_pos += run;

  539.         if (scan_pos >= num_coeffs || scan_pos < 0)

  540.             break;

  541.         pos = band->scan[scan_pos];

  542. 

  543.         if (!val)

  544.             ff_dlog(avctx, "Val = 0 encountered!\n");

  545. 

  546.         q = (base_tab[pos] * quant) >> 9;

  547.         if (q > 1)

  548.             val = val * q + FFSIGN(val) * (((q ^ 1) - 1) >> 1);

  549.         trvec[pos] = val;

  550.         /* track columns containing non-zero coeffs */

  551.         col_flags[pos & col_mask] |= !!val;

  552.     }

  553. 

  554.     if (scan_pos < 0 || scan_pos >= num_coeffs && sym != rvmap->eob_sym)

  555.         return AVERROR_INVALIDDATA; /* corrupt block data */

  556. 

  557.     /* undoing DC coeff prediction for intra-blocks */

  558.     if (is_intra && band->is_2d_trans) {

  559.         *prev_dc     += trvec[0];

  560.         trvec[0]      = *prev_dc;

  561.         col_flags[0] |= !!*prev_dc;

  562.     }

  563. 

  564.     if(band->transform_size > band->blk_size){

  565.         av_log(NULL, AV_LOG_ERROR, "Too large transform\n");

  566.         return AVERROR_INVALIDDATA;

  567.     }

  568. 

  569.     /* apply inverse transform */

  570.     band->inv_transform(trvec, band->buf + offs,

  571.                         band->pitch, col_flags);

  572. 

  573.     /* apply motion compensation */

  574.     if (!is_intra)

  575.         return ivi_mc(band, mc, mc_avg, offs, mv_x, mv_y, mv_x2, mv_y2,

  576.                       mc_type, mc_type2);

  577. 

  578.     return 0;

  579. }

  580. /*

  581.  *  Decode block data:

  582.  *  extract huffman-coded transform coefficients from the bitstream,

  583.  *  dequantize them, apply inverse transform and motion compensation

  584.  *  in order to reconstruct the picture.

  585.  *

  586.  *  @param[in,out]  gb    the GetBit context

  587.  *  @param[in]      band  pointer to the band descriptor

  588.  *  @param[in]      tile  pointer to the tile descriptor

  589.  *  @return     result code: 0 - OK, -1 = error (corrupted blocks data)

  590.  */

  591. static int ivi_decode_blocks(GetBitContext *gb, const IVIBandDesc *band,

  592.                              IVITile *tile, AVCodecContext *avctx)

  593. {

  594.     int mbn, blk, num_blocks, blk_size, ret, is_intra;

  595.     int mc_type = 0, mc_type2 = -1;

  596.     int mv_x = 0, mv_y = 0, mv_x2 = 0, mv_y2 = 0;

  597.     int32_t prev_dc;

  598.     uint32_t cbp, quant, buf_offs;

  599.     IVIMbInfo *mb;

  600.     ivi_mc_func mc_with_delta_func, mc_no_delta_func;

  601.     ivi_mc_avg_func mc_avg_with_delta_func, mc_avg_no_delta_func;

  602.     const uint8_t *scale_tab;

  603. 

  604.     /* init intra prediction for the DC coefficient */

  605.     prev_dc    = 0;

  606.     blk_size   = band->blk_size;

  607.     /* number of blocks per mb */

  608.     num_blocks = (band->mb_size != blk_size) ? 4 : 1;

  609.     if (blk_size == 8) {

  610.         mc_with_delta_func     = ff_ivi_mc_8x8_delta;

  611.         mc_no_delta_func       = ff_ivi_mc_8x8_no_delta;

  612.         mc_avg_with_delta_func = ff_ivi_mc_avg_8x8_delta;

  613.         mc_avg_no_delta_func   = ff_ivi_mc_avg_8x8_no_delta;

  614.     } else {

  615.         mc_with_delta_func     = ff_ivi_mc_4x4_delta;

  616.         mc_no_delta_func       = ff_ivi_mc_4x4_no_delta;

  617.         mc_avg_with_delta_func = ff_ivi_mc_avg_4x4_delta;

  618.         mc_avg_no_delta_func   = ff_ivi_mc_avg_4x4_no_delta;

  619.     }

  620. 

  621.     for (mbn = 0, mb = tile->mbs; mbn < tile->num_MBs; mb++, mbn++) {

  622.         is_intra = !mb->type;

  623.         cbp      = mb->cbp;

  624.         buf_offs = mb->buf_offs;

  625. 

  626.         quant = band->glob_quant + mb->q_delta;

  627.         if (avctx->codec_id == AV_CODEC_ID_INDEO4)

  628.             quant = av_clip_uintp2(quant, 5);

  629.         else

  630.             quant = av_clip(quant, 0, 23);

  631. 

  632.         scale_tab = is_intra ? band->intra_scale : band->inter_scale;

  633.         if (scale_tab)

  634.             quant = scale_tab[quant];

  635. 

  636.         if (!is_intra) {

  637.             mv_x  = mb->mv_x;

  638.             mv_y  = mb->mv_y;

  639.             mv_x2 = mb->b_mv_x;

  640.             mv_y2 = mb->b_mv_y;

  641.             if (band->is_halfpel) {

  642.                 mc_type  = ((mv_y  & 1) << 1) | (mv_x  & 1);

  643.                 mc_type2 = ((mv_y2 & 1) << 1) | (mv_x2 & 1);

  644.                 mv_x  >>= 1;

  645.                 mv_y  >>= 1;

  646.                 mv_x2 >>= 1;

  647.                 mv_y2 >>= 1; /* convert halfpel vectors into fullpel ones */

  648.             }

  649.             if (mb->type == 2)

  650.                 mc_type = -1;

  651.             if (mb->type != 2 && mb->type != 3)

  652.                 mc_type2 = -1;

  653.             if (mb->type) {

  654.                 int dmv_x, dmv_y, cx, cy;

  655. 

  656.                 dmv_x = mb->mv_x >> band->is_halfpel;

  657.                 dmv_y = mb->mv_y >> band->is_halfpel;

  658.                 cx    = mb->mv_x &  band->is_halfpel;

  659.                 cy    = mb->mv_y &  band->is_halfpel;

  660. 

  661.                 if (mb->xpos + dmv_x < 0 ||

  662.                     mb->xpos + dmv_x + band->mb_size + cx > band->pitch ||

  663.                     mb->ypos + dmv_y < 0 ||

  664.                     mb->ypos + dmv_y + band->mb_size + cy > band->aheight) {

  665.                     return AVERROR_INVALIDDATA;

  666.                 }

  667.             }

  668.             if (mb->type == 2 || mb->type == 3) {

  669.                 int dmv_x, dmv_y, cx, cy;

  670. 

  671.                 dmv_x = mb->b_mv_x >> band->is_halfpel;

  672.                 dmv_y = mb->b_mv_y >> band->is_halfpel;

  673.                 cx    = mb->b_mv_x &  band->is_halfpel;

  674.                 cy    = mb->b_mv_y &  band->is_halfpel;

  675. 

  676.                 if (mb->xpos + dmv_x < 0 ||

  677.                     mb->xpos + dmv_x + band->mb_size + cx > band->pitch ||

  678.                     mb->ypos + dmv_y < 0 ||

  679.                     mb->ypos + dmv_y + band->mb_size + cy > band->aheight) {

  680.                     return AVERROR_INVALIDDATA;

  681.                 }

  682.             }

  683.         }

  684. 

  685.         for (blk = 0; blk < num_blocks; blk++) {

  686.             /* adjust block position in the buffer according to its number */

  687.             if (blk & 1) {

  688.                 buf_offs += blk_size;

  689.             } else if (blk == 2) {

  690.                 buf_offs -= blk_size;

  691.                 buf_offs += blk_size * band->pitch;

  692.             }

  693. 

  694.             if (cbp & 1) { /* block coded ? */

  695.                 ret = ivi_decode_coded_blocks(gb, band, mc_with_delta_func,

  696.                                               mc_avg_with_delta_func,

  697.                                               mv_x, mv_y, mv_x2, mv_y2,

  698.                                               &prev_dc, is_intra,

  699.                                               mc_type, mc_type2, quant,

  700.                                               buf_offs, avctx);

  701.                 if (ret < 0)

  702.                     return ret;

  703.             } else {

  704.                 int buf_size = band->pitch * band->aheight - buf_offs;

  705.                 int min_size = (blk_size - 1) * band->pitch + blk_size;

  706. 

  707.                 if (min_size > buf_size)

  708.                     return AVERROR_INVALIDDATA;

  709.                 /* block not coded */

  710.                 /* for intra blocks apply the dc slant transform */

  711.                 /* for inter - perform the motion compensation without delta */

  712.                 if (is_intra) {

  713.                     ret = ivi_dc_transform(band, &prev_dc, buf_offs, blk_size);

  714.                     if (ret < 0)

  715.                         return ret;

  716.                 } else {

  717.                     ret = ivi_mc(band, mc_no_delta_func, mc_avg_no_delta_func,

  718.                                  buf_offs, mv_x, mv_y, mv_x2, mv_y2,

  719.                                  mc_type, mc_type2);

  720.                     if (ret < 0)

  721.                         return ret;

  722.                 }

  723.             }

  724. 

  725.             cbp >>= 1;

  726.         }// for blk

  727.     }// for mbn

  728. 

  729.     align_get_bits(gb);

  730. 

  731.     return 0;

  732. }

  733. 

  734. /**

  735.  *  Handle empty tiles by performing data copying and motion

  736.  *  compensation respectively.

  737.  *

  738.  *  @param[in]  avctx     ptr to the AVCodecContext

  739.  *  @param[in]  band      pointer to the band descriptor

  740.  *  @param[in]  tile      pointer to the tile descriptor

  741.  *  @param[in]  mv_scale  scaling factor for motion vectors

  742.  */

  743. static int ivi_process_empty_tile(AVCodecContext *avctx, const IVIBandDesc *band,

  744.                                   IVITile *tile, int32_t mv_scale)

  745. {

  746.     int             x, y, need_mc, mbn, blk, num_blocks, mv_x, mv_y, mc_type;

  747.     int             offs, mb_offset, row_offset, ret;

  748.     IVIMbInfo       *mb, *ref_mb;

  749.     const int16_t   *src;

  750.     int16_t         *dst;

  751.     ivi_mc_func     mc_no_delta_func;

  752.     int             clear_first = !band->qdelta_present && !band->plane && !band->band_num;

  753.     int             mb_size     = band->mb_size;

  754.     int             xend        = tile->xpos + tile->width;

  755.     int             is_halfpel  = band->is_halfpel;

  756.     int             pitch       = band->pitch;

  757. 

  758.     if (tile->num_MBs != IVI_MBs_PER_TILE(tile->width, tile->height, mb_size)) {

  759.         av_log(avctx, AV_LOG_ERROR, "Allocated tile size %d mismatches "

  760.                "parameters %d in ivi_process_empty_tile()\n",

  761.                tile->num_MBs, IVI_MBs_PER_TILE(tile->width, tile->height, mb_size));

  762.         return AVERROR_INVALIDDATA;

  763.     }

  764. 

  765.     offs       = tile->ypos * pitch + tile->xpos;

  766.     mb         = tile->mbs;

  767.     ref_mb     = tile->ref_mbs;

  768.     row_offset = mb_size * pitch;

  769.     need_mc    = 0; /* reset the mc tracking flag */

  770. 

  771.     for (y = tile->ypos; y < (tile->ypos + tile->height); y += mb_size) {

  772.         mb_offset = offs;

  773. 

  774.         for (x = tile->xpos; x < xend; x += mb_size) {

  775.             mb->xpos     = x;

  776.             mb->ypos     = y;

  777.             mb->buf_offs = mb_offset;

  778. 

  779.             mb->type = 1; /* set the macroblocks type = INTER */

  780.             mb->cbp  = 0; /* all blocks are empty */

  781. 

  782.             if (clear_first) {

  783.                 mb->q_delta = band->glob_quant;

  784.                 mb->mv_x    = 0;

  785.                 mb->mv_y    = 0;

  786.             }

  787. 

  788.             if (ref_mb) {

  789.                 if (band->inherit_qdelta)

  790.                     mb->q_delta = ref_mb->q_delta;

  791. 

  792.                 if (band->inherit_mv) {

  793.                     /* motion vector inheritance */

  794.                     if (mv_scale) {

  795.                         mb->mv_x = ivi_scale_mv(ref_mb->mv_x, mv_scale);

  796.                         mb->mv_y = ivi_scale_mv(ref_mb->mv_y, mv_scale);

  797.                     } else {

  798.                         mb->mv_x = ref_mb->mv_x;

  799.                         mb->mv_y = ref_mb->mv_y;

  800.                     }

  801.                     need_mc |= mb->mv_x || mb->mv_y; /* tracking non-zero motion vectors */

  802.                     {

  803.                         int dmv_x, dmv_y, cx, cy;

  804. 

  805.                         dmv_x = mb->mv_x >> is_halfpel;

  806.                         dmv_y = mb->mv_y >> is_halfpel;

  807.                         cx    = mb->mv_x &  is_halfpel;

  808.                         cy    = mb->mv_y &  is_halfpel;

  809. 

  810.                         if (   mb->xpos + dmv_x < 0

  811.                             || mb->xpos + dmv_x + mb_size + cx > pitch

  812.                             || mb->ypos + dmv_y < 0

  813.                             || mb->ypos + dmv_y + mb_size + cy > band->aheight) {

  814.                             av_log(avctx, AV_LOG_ERROR, "MV out of bounds\n");

  815.                             return AVERROR_INVALIDDATA;

  816.                         }

  817.                     }

  818.                 }

  819.                 ref_mb++;

  820.             }

  821. 

  822.             mb++;

  823.             mb_offset += mb_size;

  824.         } // for x

  825.         offs += row_offset;

  826.     } // for y

  827. 

  828.     if (band->inherit_mv && need_mc) { /* apply motion compensation if there is at least one non-zero motion vector */

  829.         num_blocks = (mb_size != band->blk_size) ? 4 : 1; /* number of blocks per mb */

  830.         mc_no_delta_func = (band->blk_size == 8) ? ff_ivi_mc_8x8_no_delta

  831.                                                  : ff_ivi_mc_4x4_no_delta;

  832. 

  833.         for (mbn = 0, mb = tile->mbs; mbn < tile->num_MBs; mb++, mbn++) {

  834.             mv_x = mb->mv_x;

  835.             mv_y = mb->mv_y;

  836.             if (!band->is_halfpel) {

  837.                 mc_type = 0; /* we have only fullpel vectors */

  838.             } else {

  839.                 mc_type = ((mv_y & 1) << 1) | (mv_x & 1);

  840.                 mv_x >>= 1;

  841.                 mv_y >>= 1; /* convert halfpel vectors into fullpel ones */

  842.             }

  843. 

  844.             for (blk = 0; blk < num_blocks; blk++) {

  845.                 /* adjust block position in the buffer according with its number */

  846.                 offs = mb->buf_offs + band->blk_size * ((blk & 1) + !!(blk & 2) * pitch);

  847.                 ret = ivi_mc(band, mc_no_delta_func, 0, offs,

  848.                              mv_x, mv_y, 0, 0, mc_type, -1);

  849.                 if (ret < 0)

  850.                     return ret;

  851.             }

  852.         }

  853.     } else {

  854.         /* copy data from the reference tile into the current one */

  855.         src = band->ref_buf + tile->ypos * pitch + tile->xpos;

  856.         dst = band->buf     + tile->ypos * pitch + tile->xpos;

  857.         for (y = 0; y < tile->height; y++) {

  858.             memcpy(dst, src, tile->width*sizeof(band->buf[0]));

  859.             src += pitch;

  860.             dst += pitch;

  861.         }

  862.     }

  863. 

  864.     return 0;

  865. }

  866. 

  867. 

  868. #ifdef DEBUG

  869. static uint16_t ivi_calc_band_checksum(const IVIBandDesc *band)

  870. {

  871.     int         x, y;

  872.     int16_t     *src, checksum;

  873. 

  874.     src = band->buf;

  875.     checksum = 0;

  876. 

  877.     for (y = 0; y < band->height; src += band->pitch, y++)

  878.         for (x = 0; x < band->width; x++)

  879.             checksum += src[x];

  880. 

  881.     return checksum;

  882. }

  883. #endif

  884. 

  885. /*

  886.  *  Convert and output the current plane.

  887.  *  This conversion is done by adding back the bias value of 128

  888.  *  (subtracted in the encoder) and clipping the result.

  889.  *

  890.  *  @param[in]   plane      pointer to the descriptor of the plane being processed

  891.  *  @param[out]  dst        pointer to the buffer receiving converted pixels

  892.  *  @param[in]   dst_pitch  pitch for moving to the next y line

  893.  */

  894. static void ivi_output_plane(IVIPlaneDesc *plane, uint8_t *dst, ptrdiff_t dst_pitch)

  895. {

  896.     int             x, y;

  897.     const int16_t   *src  = plane->bands[0].buf;

  898.     ptrdiff_t       pitch = plane->bands[0].pitch;

  899. 

  900.     if (!src)

  901.         return;

  902. 

  903.     for (y = 0; y < plane->height; y++) {

  904.         int m = 0;

  905.         int w = plane->width;

  906.         for (x = 0; x < w; x++) {

  907.             int t = src[x] + 128;

  908.             dst[x] = t;

  909.             m |= t;

  910.         }

  911.         if (m & ~255)

  912.             for (x = 0; x < w; x++)

  913.                 dst[x] = av_clip_uint8(src[x] + 128);

  914.         src += pitch;

  915.         dst += dst_pitch;

  916.     }

  917. }

  918. 

  919. static void *prepare_buf(IVI45DecContext *ctx, IVIBandDesc *band, int i)

  920. {

  921.     if (ctx->pic_conf.luma_bands <= 1 && i == 2)

  922.         return NULL;

  923.     if (!band->bufs[i])

  924.         band->bufs[i] = av_mallocz(2 * band->bufsize);

  925.     return band->bufs[i];

  926. }

  927. 

  928. /**

  929.  *  Decode an Indeo 4 or 5 band.

  930.  *

  931.  *  @param[in,out]  ctx    ptr to the decoder context

  932.  *  @param[in,out]  band   ptr to the band descriptor

  933.  *  @param[in]      avctx  ptr to the AVCodecContext

  934.  *  @return         result code: 0 = OK, -1 = error

  935.  */

  936. static int decode_band(IVI45DecContext *ctx,

  937.                        IVIBandDesc *band, AVCodecContext *avctx)

  938. {

  939.     int         result, i, t, idx1, idx2, pos;

  940.     IVITile     *tile;

  941. 

  942.     band->buf     = prepare_buf(ctx, band, ctx->dst_buf);

  943.     if (!band->buf) {

  944.         av_log(avctx, AV_LOG_ERROR, "Band buffer points to no data!\n");

  945.         return AVERROR_INVALIDDATA;

  946.     }

  947.     if (ctx->is_indeo4 && ctx->frame_type == IVI4_FRAMETYPE_BIDIR) {

  948.         band->ref_buf   = prepare_buf(ctx, band, ctx->b_ref_buf);

  949.         band->b_ref_buf = prepare_buf(ctx, band, ctx->ref_buf);

  950.         if (!band->b_ref_buf)

  951.             return AVERROR(ENOMEM);

  952.     } else {

  953.         band->ref_buf   = prepare_buf(ctx, band, ctx->ref_buf);

  954.         band->b_ref_buf = 0;

  955.     }

  956.     if (!band->ref_buf)

  957.         return AVERROR(ENOMEM);

  958.     band->data_ptr  = ctx->frame_data + (get_bits_count(&ctx->gb) >> 3);

  959. 

  960.     result = ctx->decode_band_hdr(ctx, band, avctx);

  961.     if (result) {

  962.         av_log(avctx, AV_LOG_ERROR, "Error while decoding band header: %d\n",

  963.                result);

  964.         return result;

  965.     }

  966. 

  967.     if (band->is_empty) {

  968.         av_log(avctx, AV_LOG_ERROR, "Empty band encountered!\n");

  969.         return AVERROR_INVALIDDATA;

  970.     }

  971. 

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

  973. 

  974.     /* apply corrections to the selected rvmap table if present */

  975.     for (i = 0; i < band->num_corr; i++) {

  976.         idx1 = band->corr[i * 2];

  977.         idx2 = band->corr[i * 2 + 1];

  978.         FFSWAP(uint8_t, band->rv_map->runtab[idx1], band->rv_map->runtab[idx2]);

  979.         FFSWAP(int16_t, band->rv_map->valtab[idx1], band->rv_map->valtab[idx2]);

  980.         if (idx1 == band->rv_map->eob_sym || idx2 == band->rv_map->eob_sym)

  981.             band->rv_map->eob_sym ^= idx1 ^ idx2;

  982.         if (idx1 == band->rv_map->esc_sym || idx2 == band->rv_map->esc_sym)

  983.             band->rv_map->esc_sym ^= idx1 ^ idx2;

  984.     }

  985. 

  986.     pos = get_bits_count(&ctx->gb);

  987. 

  988.     for (t = 0; t < band->num_tiles; t++) {

  989.         tile = &band->tiles[t];

  990. 

  991.         if (tile->mb_size != band->mb_size) {

  992.             av_log(avctx, AV_LOG_ERROR, "MB sizes mismatch: %d vs. %d\n",

  993.                    band->mb_size, tile->mb_size);

  994.             return AVERROR_INVALIDDATA;

  995.         }

  996.         tile->is_empty = get_bits1(&ctx->gb);

  997.         if (tile->is_empty) {

  998.             result = ivi_process_empty_tile(avctx, band, tile,

  999.                                       (ctx->planes[0].bands[0].mb_size >> 3) - (band->mb_size >> 3));

  1000.             if (result < 0)

  1001.                 break;

  1002.             ff_dlog(avctx, "Empty tile encountered!\n");

  1003.         } else {

  1004.             tile->data_size = ivi_dec_tile_data_size(&ctx->gb);

  1005.             if (!tile->data_size) {

  1006.                 av_log(avctx, AV_LOG_ERROR, "Tile data size is zero!\n");

  1007.                 result = AVERROR_INVALIDDATA;

  1008.                 break;

  1009.             }

  1010. 

  1011.             result = ctx->decode_mb_info(ctx, band, tile, avctx);

  1012.             if (result < 0)

  1013.                 break;

  1014. 

  1015.             result = ivi_decode_blocks(&ctx->gb, band, tile, avctx);

  1016.             if (result < 0) {

  1017.                 av_log(avctx, AV_LOG_ERROR,

  1018.                        "Corrupted tile data encountered!\n");

  1019.                 break;

  1020.             }

  1021. 

  1022.             if (((get_bits_count(&ctx->gb) - pos) >> 3) != tile->data_size) {

  1023.                 av_log(avctx, AV_LOG_ERROR,

  1024.                        "Tile data_size mismatch!\n");

  1025.                 result = AVERROR_INVALIDDATA;

  1026.                 break;

  1027.             }

  1028. 

  1029.             pos += tile->data_size << 3; // skip to next tile

  1030.         }

  1031.     }

  1032. 

  1033.     /* restore the selected rvmap table by applying its corrections in

  1034.      * reverse order */

  1035.     for (i = band->num_corr-1; i >= 0; i--) {

  1036.         idx1 = band->corr[i*2];

  1037.         idx2 = band->corr[i*2+1];

  1038.         FFSWAP(uint8_t, band->rv_map->runtab[idx1], band->rv_map->runtab[idx2]);

  1039.         FFSWAP(int16_t, band->rv_map->valtab[idx1], band->rv_map->valtab[idx2]);

  1040.         if (idx1 == band->rv_map->eob_sym || idx2 == band->rv_map->eob_sym)

  1041.             band->rv_map->eob_sym ^= idx1 ^ idx2;

  1042.         if (idx1 == band->rv_map->esc_sym || idx2 == band->rv_map->esc_sym)

  1043.             band->rv_map->esc_sym ^= idx1 ^ idx2;

  1044.     }

  1045. 

  1046. #ifdef DEBUG

  1047.     if (band->checksum_present) {

  1048.         uint16_t chksum = ivi_calc_band_checksum(band);

  1049.         if (chksum != band->checksum) {

  1050.             av_log(avctx, AV_LOG_ERROR,

  1051.                    "Band checksum mismatch! Plane %d, band %d, "

  1052.                    "received: %"PRIx32", calculated: %"PRIx16"\n",

  1053.                    band->plane, band->band_num, band->checksum, chksum);

  1054.         }

  1055.     }

  1056. #endif

  1057. 

  1058.     align_get_bits(&ctx->gb);

  1059. 

  1060.     return result;

  1061. }

  1062. 

  1063. int ff_ivi_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,

  1064.                         AVPacket *avpkt)

  1065. {

  1066.     IVI45DecContext *ctx = avctx->priv_data;

  1067.     const uint8_t   *buf = avpkt->data;

  1068.     AVFrame       *frame = data;

  1069.     int             buf_size = avpkt->size;

  1070.     int             result, p, b;

  1071. 

  1072.     result = init_get_bits8(&ctx->gb, buf, buf_size);

  1073.     if (result < 0)

  1074.         return result;

  1075.     ctx->frame_data = buf;

  1076.     ctx->frame_size = buf_size;

  1077. 

  1078.     result = ctx->decode_pic_hdr(ctx, avctx);

  1079.     if (result) {

  1080.         av_log(avctx, AV_LOG_ERROR,

  1081.                "Error while decoding picture header: %d\n", result);

  1082.         return result;

  1083.     }

  1084.     if (ctx->gop_invalid)

  1085.         return AVERROR_INVALIDDATA;

  1086. 

  1087.     if (ctx->is_indeo4 && ctx->frame_type == IVI4_FRAMETYPE_NULL_LAST) {

  1088.         if (ctx->got_p_frame) {

  1089.             av_frame_move_ref(data, ctx->p_frame);

  1090.             *got_frame = 1;

  1091.             ctx->got_p_frame = 0;

  1092.         } else {

  1093.             *got_frame = 0;

  1094.         }

  1095.         return buf_size;

  1096.     }

  1097. 

  1098.     if (ctx->gop_flags & IVI5_IS_PROTECTED) {

  1099.         avpriv_report_missing_feature(avctx, "Password-protected clip");

  1100.         return AVERROR_PATCHWELCOME;

  1101.     }

  1102. 

  1103.     if (!ctx->planes[0].bands) {

  1104.         av_log(avctx, AV_LOG_ERROR, "Color planes not initialized yet\n");

  1105.         return AVERROR_INVALIDDATA;

  1106.     }

  1107. 

  1108.     ctx->switch_buffers(ctx);

  1109. 

  1110.     if (ctx->is_nonnull_frame(ctx)) {

  1111.         ctx->buf_invalid[ctx->dst_buf] = 1;

  1112.         for (p = 0; p < 3; p++) {

  1113.             for (b = 0; b < ctx->planes[p].num_bands; b++) {

  1114.                 result = decode_band(ctx, &ctx->planes[p].bands[b], avctx);

  1115.                 if (result < 0) {

  1116.                     av_log(avctx, AV_LOG_ERROR,

  1117.                            "Error while decoding band: %d, plane: %d\n", b, p);

  1118.                     return result;

  1119.                 }

  1120.             }

  1121.         }

  1122.         ctx->buf_invalid[ctx->dst_buf] = 0;

  1123.     } else {

  1124.         if (ctx->is_scalable)

  1125.             return AVERROR_INVALIDDATA;

  1126. 

  1127.         for (p = 0; p < 3; p++) {

  1128.             if (!ctx->planes[p].bands[0].buf)

  1129.                 return AVERROR_INVALIDDATA;

  1130.         }

  1131.     }

  1132.     if (ctx->buf_invalid[ctx->dst_buf])

  1133.         return -1;

  1134. 

  1135.     if (!ctx->is_nonnull_frame(ctx))

  1136.         return buf_size;

  1137. 

  1138.     result = ff_set_dimensions(avctx, ctx->planes[0].width, ctx->planes[0].height);

  1139.     if (result < 0)

  1140.         return result;

  1141. 

  1142.     if ((result = ff_get_buffer(avctx, frame, 0)) < 0)

  1143.         return result;

  1144. 

  1145.     if (ctx->is_scalable) {

  1146.         if (ctx->is_indeo4)

  1147.             ff_ivi_recompose_haar(&ctx->planes[0], frame->data[0], frame->linesize[0]);

  1148.         else

  1149.             ff_ivi_recompose53   (&ctx->planes[0], frame->data[0], frame->linesize[0]);

  1150.     } else {

  1151.         ivi_output_plane(&ctx->planes[0], frame->data[0], frame->linesize[0]);

  1152.     }

  1153. 

  1154.     ivi_output_plane(&ctx->planes[2], frame->data[1], frame->linesize[1]);

  1155.     ivi_output_plane(&ctx->planes[1], frame->data[2], frame->linesize[2]);

  1156. 

  1157.     *got_frame = 1;

  1158. 

  1159.     /* If the bidirectional mode is enabled, next I and the following P

  1160.      * frame will be sent together. Unfortunately the approach below seems

  1161.      * to be the only way to handle the B-frames mode.

  1162.      * That's exactly the same Intel decoders do.

  1163.      */

  1164.     if (ctx->is_indeo4 && ctx->frame_type == IVI4_FRAMETYPE_INTRA) {

  1165.         int left;

  1166. 

  1167.             // skip version string

  1168.         while (get_bits(&ctx->gb, 8)) {

  1169.             if (get_bits_left(&ctx->gb) < 8)

  1170.                 return AVERROR_INVALIDDATA;

  1171.         }

  1172.         left = get_bits_count(&ctx->gb) & 0x18;

  1173.         skip_bits_long(&ctx->gb, 64 - left);

  1174.         if (get_bits_left(&ctx->gb) > 18 &&

  1175.             show_bits(&ctx->gb, 21) == 0xBFFF8) { // syncheader + inter type

  1176.             AVPacket pkt;

  1177.             pkt.data = avpkt->data + (get_bits_count(&ctx->gb) >> 3);

  1178.             pkt.size = get_bits_left(&ctx->gb) >> 3;

  1179.             ctx->got_p_frame = 0;

  1180.             av_frame_unref(ctx->p_frame);

  1181.             ff_ivi_decode_frame(avctx, ctx->p_frame, &ctx->got_p_frame, &pkt);

  1182.         }

  1183.     }

  1184. 

  1185.     if (ctx->show_indeo4_info) {

  1186.         if (ctx->is_scalable)

  1187.             av_log(avctx, AV_LOG_DEBUG, "This video uses scalability mode\n");

  1188.         if (ctx->uses_tiling)

  1189.             av_log(avctx, AV_LOG_DEBUG, "This video uses local decoding\n");

  1190.         if (ctx->has_b_frames)

  1191.             av_log(avctx, AV_LOG_DEBUG, "This video contains B-frames\n");

  1192.         if (ctx->has_transp)

  1193.             av_log(avctx, AV_LOG_DEBUG, "Transparency mode is enabled\n");

  1194.         if (ctx->uses_haar)

  1195.             av_log(avctx, AV_LOG_DEBUG, "This video uses Haar transform\n");

  1196.         if (ctx->uses_fullpel)

  1197.             av_log(avctx, AV_LOG_DEBUG, "This video uses fullpel motion vectors\n");

  1198.         ctx->show_indeo4_info = 0;

  1199.     }

  1200. 

  1201.     return buf_size;

  1202. }

  1203. 

  1204. /**

  1205.  *  Close Indeo5 decoder and clean up its context.

  1206.  */

  1207. av_cold int ff_ivi_decode_close(AVCodecContext *avctx)

  1208. {

  1209.     IVI45DecContext *ctx = avctx->priv_data;

  1210. 

  1211.     ivi_free_buffers(&ctx->planes[0]);

  1212. 

  1213.     if (ctx->mb_vlc.cust_tab.table)

  1214.         ff_free_vlc(&ctx->mb_vlc.cust_tab);

  1215. 

  1216.     if (ctx->blk_vlc.cust_tab.table)

  1217.         ff_free_vlc(&ctx->blk_vlc.cust_tab);

  1218. 

  1219.     av_frame_free(&ctx->p_frame);

  1220. 

  1221.     return 0;

  1222. }

  1223. 

  1224. 

  1225. /**

  1226.  *  Scan patterns shared between indeo4 and indeo5

  1227.  */

  1228. const uint8_t ff_ivi_vertical_scan_8x8[64] = {

  1229.     0,  8, 16, 24, 32, 40, 48, 56,

  1230.     1,  9, 17, 25, 33, 41, 49, 57,

  1231.     2, 10, 18, 26, 34, 42, 50, 58,

  1232.     3, 11, 19, 27, 35, 43, 51, 59,

  1233.     4, 12, 20, 28, 36, 44, 52, 60,

  1234.     5, 13, 21, 29, 37, 45, 53, 61,

  1235.     6, 14, 22, 30, 38, 46, 54, 62,

  1236.     7, 15, 23, 31, 39, 47, 55, 63

  1237. };

  1238. 

  1239. const uint8_t ff_ivi_horizontal_scan_8x8[64] = {

  1240.      0,  1,  2,  3,  4,  5,  6,  7,

  1241.      8,  9, 10, 11, 12, 13, 14, 15,

  1242.     16, 17, 18, 19, 20, 21, 22, 23,

  1243.     24, 25, 26, 27, 28, 29, 30, 31,

  1244.     32, 33, 34, 35, 36, 37, 38, 39,

  1245.     40, 41, 42, 43, 44, 45, 46, 47,

  1246.     48, 49, 50, 51, 52, 53, 54, 55,

  1247.     56, 57, 58, 59, 60, 61, 62, 63

  1248. };

  1249. 

  1250. const uint8_t ff_ivi_direct_scan_4x4[16] = {

  1251.     0, 1, 4, 8, 5, 2, 3, 6, 9, 12, 13, 10, 7, 11, 14, 15

  1252. };

  1253. 

  1254. 

  1255. /**

  1256.  *  Run-value (RLE) tables.

  1257.  */

  1258. const RVMapDesc ff_ivi_rvmap_tabs[9] = {

  1259. {   /* MapTab0 */

  1260.     5, /* eob_sym */

  1261.     2, /* esc_sym */

  1262.     /* run table */

  1263.     {1,  1,  0,  1,  1,  0,  1,  1,  2,  2,  1,  1,  1,  1,  3,  3,

  1264.      1,  1,  2,  2,  1,  1,  4,  4,  1,  1,  1,  1,  2,  2,  5,  5,

  1265.      1,  1,  3,  3,  1,  1,  6,  6,  1,  2,  1,  2,  7,  7,  1,  1,

  1266.      8,  8,  1,  1,  4,  2,  1,  4,  2,  1,  3,  3,  1,  1,  1,  9,

  1267.      9,  1,  2,  1,  2,  1,  5,  5,  1,  1, 10, 10,  1,  1,  3,  3,

  1268.      2,  2,  1,  1, 11, 11,  6,  4,  4,  1,  6,  1,  2,  1,  2, 12,

  1269.      8,  1, 12,  7,  8,  7,  1, 16,  1, 16,  1,  3,  3, 13,  1, 13,

  1270.      2,  2,  1, 15,  1,  5, 14, 15,  1,  5, 14,  1, 17,  8, 17,  8,

  1271.      1,  4,  4,  2,  2,  1, 25, 25, 24, 24,  1,  3,  1,  3,  1,  8,

  1272.      6,  7,  6,  1, 18,  8, 18,  1,  7, 23,  2,  2, 23,  1,  1, 21,

  1273.     22,  9,  9, 22, 19,  1, 21,  5, 19,  5,  1, 33, 20, 33, 20,  8,

  1274.      4,  4,  1, 32,  2,  2,  8,  3, 32, 26,  3,  1,  7,  7, 26,  6,

  1275.      1,  6,  1,  1, 16,  1, 10,  1, 10,  2, 16, 29, 28,  2, 29, 28,

  1276.      1, 27,  5,  8,  5, 27,  1,  8,  3,  7,  3, 31, 41, 31,  1, 41,

  1277.      6,  1,  6,  7,  4,  4,  1,  1,  2,  1,  2, 11, 34, 30, 11,  1,

  1278.     30, 15, 15, 34, 36, 40, 36, 40, 35, 35, 37, 37, 39, 39, 38, 38},

  1279. 

  1280.     /* value table */

  1281.     { 1,  -1,   0,   2,  -2,   0,   3,  -3,   1,  -1,   4,  -4,   5,  -5,   1,  -1,

  1282.       6,  -6,   2,  -2,   7,  -7,   1,  -1,   8,  -8,   9,  -9,   3,  -3,   1,  -1,

  1283.      10, -10,   2,  -2,  11, -11,   1,  -1,  12,   4, -12,  -4,   1,  -1,  13, -13,

  1284.       1,  -1,  14, -14,   2,   5,  15,  -2,  -5, -15,  -3,   3,  16, -16,  17,   1,

  1285.      -1, -17,   6,  18,  -6, -18,   2,  -2,  19, -19,   1,  -1,  20, -20,   4,  -4,

  1286.       7,  -7,  21, -21,   1,  -1,   2,   3,  -3,  22,  -2, -22,   8,  23,  -8,   1,

  1287.       2, -23,  -1,   2,  -2,  -2,  24,   1, -24,  -1,  25,   5,  -5,   1, -25,  -1,

  1288.       9,  -9,  26,   1, -26,   3,   1,  -1,  27,  -3,  -1, -27,   1,   3,  -1,  -3,

  1289.      28,  -4,   4,  10, -10, -28,   1,  -1,   1,  -1,  29,   6, -29,  -6,  30,  -4,

  1290.       3,   3,  -3, -30,   1,   4,  -1,  31,  -3,   1,  11, -11,  -1, -31,  32,  -1,

  1291.      -1,   2,  -2,   1,   1, -32,   1,   4,  -1,  -4,  33,  -1,   1,   1,  -1,   5,

  1292.       5,  -5, -33,  -1, -12,  12,  -5,  -7,   1,   1,   7,  34,   4,  -4,  -1,   4,

  1293.     -34,  -4,  35,  36,  -2, -35,  -2, -36,   2,  13,   2,  -1,   1, -13,   1,  -1,

  1294.      37,   1,  -5,   6,   5,  -1,  38,  -6,  -8,   5,   8,  -1,   1,   1, -37,  -1,

  1295.       5,  39,  -5,  -5,   6,  -6, -38, -39, -14,  40,  14,   2,   1,   1,  -2, -40,

  1296.      -1,  -2,   2,  -1,  -1,  -1,   1,   1,   1,  -1,   1,  -1,   1,  -1,   1,  -1}

  1297. },{

  1298.     /* MapTab1 */

  1299.     0,  /* eob_sym */

  1300.     38, /* esc_sym */

  1301.     /* run table */

  1302.     {0,  1,  1,  2,  2,  3,  3,  4,  4,  5,  5,  6,  8,  6,  8,  7,

  1303.      7,  9,  9, 10, 10, 11, 11,  1, 12,  1, 12, 13, 13, 16, 14, 16,

  1304.     14, 15, 15, 17, 17, 18,  0, 18, 19, 20, 21, 19, 22, 21, 20, 22,

  1305.     25, 24,  2, 25, 24, 23, 23,  2, 26, 28, 26, 28, 29, 27, 29, 27,

  1306.     33, 33,  1, 32,  1,  3, 32, 30, 36,  3, 36, 30, 31, 31, 35, 34,

  1307.     37, 41, 34, 35, 37,  4, 41,  4, 49,  8,  8, 49, 40, 38,  5, 38,

  1308.     40, 39,  5, 39, 42, 43, 42,  7, 57,  6, 43, 44,  6, 50,  7, 44,

  1309.     57, 48, 50, 48, 45, 45, 46, 47, 51, 46, 47, 58,  1, 51, 58,  1,

  1310.     52, 59, 53,  9, 52, 55, 55, 59, 53, 56, 54, 56, 54,  9, 64, 64,

  1311.     60, 63, 60, 63, 61, 62, 61, 62,  2, 10,  2, 10, 11,  1, 11, 13,

  1312.     12,  1, 12, 13, 16, 16,  8,  8, 14,  3,  3, 15, 14, 15,  4,  4,

  1313.      1, 17, 17,  5,  1,  7,  7,  5,  6,  1,  2,  2,  6, 22,  1, 25,

  1314.     21, 22,  8, 24,  1, 21, 25, 24,  8, 18, 18, 23,  9, 20, 23, 33,

  1315.     29, 33, 20,  1, 19,  1, 29, 36,  9, 36, 19, 41, 28, 57, 32,  3,

  1316.     28,  3,  1, 27, 49, 49,  1, 32, 26, 26,  2,  4,  4,  7, 57, 41,

  1317.      2,  7, 10,  5, 37, 16, 10, 27,  8,  8, 13, 16, 37, 13,  1,  5},

  1318. 

  1319.     /* value table */

  1320.     {0,   1,  -1,   1,  -1,   1,  -1,   1,  -1,   1,  -1,   1,   1,  -1,  -1,   1,

  1321.     -1,   1,  -1,   1,  -1,   1,  -1,   2,   1,  -2,  -1,   1,  -1,   1,   1,  -1,

  1322.     -1,   1,  -1,   1,  -1,   1,   0,  -1,   1,   1,   1,  -1,   1,  -1,  -1,  -1,

  1323.      1,   1,   2,  -1,  -1,   1,  -1,  -2,   1,   1,  -1,  -1,   1,   1,  -1,  -1,

  1324.      1,  -1,   3,   1,  -3,   2,  -1,   1,   1,  -2,  -1,  -1,  -1,   1,   1,   1,

  1325.      1,   1,  -1,  -1,  -1,   2,  -1,  -2,   1,   2,  -2,  -1,   1,   1,   2,  -1,

  1326.     -1,   1,  -2,  -1,   1,   1,  -1,   2,   1,   2,  -1,   1,  -2,  -1,  -2,  -1,

  1327.     -1,   1,   1,  -1,   1,  -1,   1,   1,   1,  -1,  -1,   1,   4,  -1,  -1,  -4,

  1328.      1,   1,   1,   2,  -1,  -1,   1,  -1,  -1,   1,  -1,  -1,   1,  -2,   1,  -1,

  1329.      1,   1,  -1,  -1,   1,   1,  -1,  -1,   3,   2,  -3,  -2,   2,   5,  -2,   2,

  1330.      2,  -5,  -2,  -2,  -2,   2,  -3,   3,   2,   3,  -3,   2,  -2,  -2,   3,  -3,

  1331.      6,   2,  -2,   3,  -6,   3,  -3,  -3,   3,   7,  -4,   4,  -3,   2,  -7,   2,

  1332.      2,  -2,  -4,   2,   8,  -2,  -2,  -2,   4,   2,  -2,   2,   3,   2,  -2,  -2,

  1333.      2,   2,  -2,  -8,  -2,   9,  -2,   2,  -3,  -2,   2,  -2,   2,   2,   2,   4,

  1334.     -2,  -4,  10,   2,   2,  -2,  -9,  -2,   2,  -2,   5,   4,  -4,   4,  -2,   2,

  1335.     -5,  -4,  -3,   4,   2,  -3,   3,  -2,  -5,   5,   3,   3,  -2,  -3, -10,  -4}

  1336. },{

  1337.     /* MapTab2 */

  1338.     2,  /* eob_sym */

  1339.     11, /* esc_sym */

  1340.     /* run table */

  1341.     {1,  1,  0,  2,  2,  1,  1,  3,  3,  4,  4,  0,  1,  1,  5,  5,

  1342.      2,  2,  6,  6,  7,  7,  1,  8,  1,  8,  3,  3,  9,  9,  1,  2,

  1343.      2,  1,  4, 10,  4, 10, 11, 11,  1,  5, 12, 12,  1,  5, 13, 13,

  1344.      3,  3,  6,  6,  2,  2, 14, 14, 16, 16, 15,  7, 15,  8,  8,  7,

  1345.      1,  1, 17, 17,  4,  4,  1,  1, 18, 18,  2,  2,  5,  5, 25,  3,

  1346.      9,  3, 25,  9, 19, 24, 19, 24,  1, 21, 20,  1, 21, 22, 20, 22,

  1347.     23, 23,  8,  6, 33,  6,  8, 33,  7,  7, 26, 26,  1, 32,  1, 32,

  1348.     28,  4, 28, 10, 29, 27, 27, 10, 41,  4, 29,  2,  2, 41, 36, 31,

  1349.     49, 31, 34, 30, 34, 36, 30, 35,  1, 49, 11,  5, 35, 11,  1,  3,

  1350.      3,  5, 37, 37,  8, 40,  8, 40, 12, 12, 42, 42,  1, 38, 16, 57,

  1351.      1,  6, 16, 39, 38,  6,  7,  7, 13, 13, 39, 43,  2, 43, 57,  2,

  1352.     50,  9, 44,  9, 50,  4, 15, 48, 44,  4,  1, 15, 48, 14, 14,  1,

  1353.     45, 45,  8,  3,  5,  8, 51, 47,  3, 46, 46, 47,  5, 51,  1, 17,

  1354.     17, 58,  1, 58,  2, 52, 52,  2, 53,  7, 59,  6,  6, 56, 53, 55,

  1355.      7, 55,  1, 54, 59, 56, 54, 10,  1, 10,  4, 60,  1, 60,  8,  4,

  1356.      8, 64, 64, 61,  1, 63,  3, 63, 62, 61,  5, 11,  5,  3, 11, 62},

  1357. 

  1358.     /* value table */

  1359.     { 1,  -1,   0,   1,  -1,   2,  -2,   1,  -1,   1,  -1,   0,   3,  -3,   1,  -1,

  1360.       2,  -2,   1,  -1,   1,  -1,   4,   1,  -4,  -1,   2,  -2,   1,  -1,   5,   3,

  1361.      -3,  -5,   2,   1,  -2,  -1,   1,  -1,   6,   2,   1,  -1,  -6,  -2,   1,  -1,

  1362.       3,  -3,   2,  -2,   4,  -4,   1,  -1,   1,  -1,   1,   2,  -1,   2,  -2,  -2,

  1363.       7,  -7,   1,  -1,   3,  -3,   8,  -8,   1,  -1,   5,  -5,   3,  -3,   1,   4,

  1364.       2,  -4,  -1,  -2,   1,   1,  -1,  -1,   9,   1,   1,  -9,  -1,   1,  -1,  -1,

  1365.       1,  -1,   3,  -3,   1,   3,  -3,  -1,   3,  -3,   1,  -1,  10,   1, -10,  -1,

  1366.       1,   4,  -1,   2,   1,  -1,   1,  -2,   1,  -4,  -1,   6,  -6,  -1,   1,   1,

  1367.       1,  -1,   1,   1,  -1,  -1,  -1,   1,  11,  -1,  -2,   4,  -1,   2, -11,   5,

  1368.      -5,  -4,  -1,   1,   4,   1,  -4,  -1,  -2,   2,   1,  -1,  12,   1,  -2,   1,

  1369.     -12,   4,   2,   1,  -1,  -4,   4,  -4,   2,  -2,  -1,   1,   7,  -1,  -1,  -7,

  1370.      -1,  -3,   1,   3,   1,   5,   2,   1,  -1,  -5,  13,  -2,  -1,   2,  -2, -13,

  1371.       1,  -1,   5,   6,   5,  -5,   1,   1,  -6,   1,  -1,  -1,  -5,  -1,  14,   2,

  1372.      -2,   1, -14,  -1,   8,   1,  -1,  -8,   1,   5,   1,   5,  -5,   1,  -1,   1,

  1373.      -5,  -1,  15,   1,  -1,  -1,  -1,   3, -15,  -3,   6,   1,  16,  -1,   6,  -6,

  1374.      -6,   1,  -1,   1, -16,   1,   7,  -1,   1,  -1,  -6,  -3,   6,  -7,   3,  -1}

  1375. },{

  1376.     /* MapTab3 */

  1377.     0,  /* eob_sym */

  1378.     35, /* esc_sym */

  1379.     /* run table */

  1380.     {0,  1,  1,  2,  2,  3,  3,  4,  4,  1,  1,  5,  5,  6,  6,  7,

  1381.      7,  8,  8,  9,  9,  2,  2, 10, 10,  1,  1, 11, 11, 12, 12,  3,

  1382.      3, 13, 13,  0, 14, 14, 16, 15, 16, 15,  4,  4, 17,  1, 17,  1,

  1383.      5,  5, 18, 18,  2,  2,  6,  6,  8, 19,  7,  8,  7, 19, 20, 20,

  1384.     21, 21, 22, 24, 22, 24, 23, 23,  1,  1, 25, 25,  3,  3, 26, 26,

  1385.      9,  9, 27, 27, 28, 28, 33, 29,  4, 33, 29,  1,  4,  1, 32, 32,

  1386.      2,  2, 31, 10, 30, 10, 30, 31, 34, 34,  5,  5, 36, 36, 35, 41,

  1387.     35, 11, 41, 11, 37,  1,  8,  8, 37,  6,  1,  6, 40,  7,  7, 40,

  1388.     12, 38, 12, 39, 39, 38, 49, 13, 49, 13,  3, 42,  3, 42, 16, 16,

  1389.     43, 43, 14, 14,  1,  1, 44, 15, 44, 15,  2,  2, 57, 48, 50, 48,

  1390.     57, 50,  4, 45, 45,  4, 46, 47, 47, 46,  1, 51,  1, 17, 17, 51,

  1391.      8,  9,  9,  5, 58,  8, 58,  5, 52, 52, 55, 56, 53, 56, 55, 59,

  1392.     59, 53, 54,  1,  6, 54,  7,  7,  6,  1,  2,  3,  2,  3, 64, 60,

  1393.     60, 10, 10, 64, 61, 62, 61, 63,  1, 63, 62,  1, 18, 24, 18,  4,

  1394.     25,  4,  8, 21, 21,  1, 24, 22, 25, 22,  8, 11, 19, 11, 23,  1,

  1395.     20, 23, 19, 20,  5, 12,  5,  1, 16,  2, 12, 13,  2, 13,  1, 16},

  1396. 

  1397.     /* value table */

  1398.     { 0,   1,  -1,   1,  -1,   1,  -1,   1,  -1,   2,  -2,   1,  -1,   1,  -1,   1,

  1399.      -1,   1,  -1,   1,  -1,   2,  -2,   1,  -1,   3,  -3,   1,  -1,   1,  -1,   2,

  1400.      -2,   1,  -1,   0,   1,  -1,   1,   1,  -1,  -1,   2,  -2,   1,   4,  -1,  -4,

  1401.       2,  -2,   1,  -1,  -3,   3,   2,  -2,   2,   1,   2,  -2,  -2,  -1,   1,  -1,

  1402.       1,  -1,   1,   1,  -1,  -1,   1,  -1,   5,  -5,   1,  -1,   3,  -3,   1,  -1,

  1403.       2,  -2,   1,  -1,   1,  -1,   1,   1,   3,  -1,  -1,   6,  -3,  -6,  -1,   1,

  1404.       4,  -4,   1,   2,   1,  -2,  -1,  -1,   1,  -1,   3,  -3,   1,  -1,   1,   1,

  1405.      -1,   2,  -1,  -2,   1,   7,  -3,   3,  -1,   3,  -7,  -3,   1,  -3,   3,  -1,

  1406.       2,   1,  -2,   1,  -1,  -1,   1,   2,  -1,  -2,  -4,  -1,   4,   1,   2,  -2,

  1407.       1,  -1,  -2,   2,   8,  -8,  -1,   2,   1,  -2,  -5,   5,   1,  -1,  -1,   1,

  1408.      -1,   1,   4,  -1,   1,  -4,  -1,  -1,   1,   1,   9,   1,  -9,   2,  -2,  -1,

  1409.      -4,   3,  -3,  -4,  -1,   4,   1,   4,   1,  -1,   1,  -1,   1,   1,  -1,   1,

  1410.      -1,  -1,  -1,  10,   4,   1,   4,  -4,  -4, -10,   6,   5,  -6,  -5,   1,  -1,

  1411.       1,   3,  -3,  -1,   1,  -1,  -1,  -1,  11,   1,   1, -11,  -2,  -2,   2,   5,

  1412.      -2,  -5,  -5,   2,  -2,  12,   2,  -2,   2,   2,   5,  -3,  -2,   3,  -2, -12,

  1413.      -2,   2,   2,   2,  -5,   3,   5,  13,  -3,   7,  -3,  -3,  -7,   3, -13,   3}

  1414. },{

  1415.     /* MapTab4 */

  1416.     0,  /* eob_sym */

  1417.     34, /* esc_sym */

  1418.     /* run table */

  1419.     {0,  1,  1,  1,  2,  2,  1,  3,  3,  1,  1,  1,  4,  4,  1,  5,

  1420.      2,  1,  5,  2,  1,  1,  6,  6,  1,  1,  1,  1,  1,  7,  3,  1,

  1421.      2,  3,  0,  1,  2,  7,  1,  1,  1,  8,  1,  1,  8,  1,  1,  1,

  1422.      9,  1,  9,  1,  2,  1,  1,  2,  1,  1, 10,  4,  1, 10,  1,  4,

  1423.      1,  1,  1,  1,  1,  3,  1,  1,  1,  3,  2,  1,  5,  1,  1,  1,

  1424.      2,  5,  1, 11,  1, 11,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,

  1425.      2,  1,  6,  1,  6,  1,  1,  2,  1,  1,  1,  1,  1,  1,  1, 12,

  1426.      3,  1, 12,  1,  1,  1,  2,  1,  1,  3,  1,  1,  1,  1,  1,  1,

  1427.      4,  1,  1,  1,  2,  1,  1,  4,  1,  1,  1,  1,  1,  1,  2,  1,

  1428.      1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  3,  1,  2,  1,  1,  5,

  1429.      1,  1,  1,  1,  1,  7,  1,  7,  1,  1,  2,  3,  1,  1,  1,  1,

  1430.      5,  1,  1,  1,  1,  1,  1,  2, 13,  1,  1,  1,  1,  1,  1,  1,

  1431.      1,  1,  1,  1,  1,  1,  1,  1, 13,  2,  1,  1,  4,  1,  1,  1,

  1432.      3,  1,  6,  1,  1,  1, 14,  1,  1,  1,  1,  1, 14,  6,  1,  1,

  1433.      1,  1, 15,  2,  4,  1,  2,  3, 15,  1,  1,  1,  8,  1,  1,  8,

  1434.      1,  1,  1,  1,  1,  1,  1,  1,  2,  1,  1,  1,  1,  1,  1,  1},

  1435. 

  1436.     /* value table */

  1437.     { 0,   1,  -1,   2,   1,  -1,  -2,   1,  -1,   3,  -3,   4,   1,  -1,  -4,   1,

  1438.       2,   5,  -1,  -2,  -5,   6,   1,  -1,  -6,   7,  -7,   8,  -8,   1,   2,   9,

  1439.       3,  -2,   0,  -9,  -3,  -1,  10, -10,  11,   1, -11,  12,  -1, -12,  13, -13,

  1440.       1,  14,  -1, -14,   4,  15, -15,  -4,  16, -16,   1,   2,  17,  -1, -17,  -2,

  1441.      18, -18,  19, -19,  20,   3, -20,  21, -21,  -3,   5,  22,   2, -22, -23,  23,

  1442.      -5,  -2,  24,   1, -24,  -1,  25, -25,  26, -26, -27,  27,  28,  29, -28, -29,

  1443.       6,  30,   2, -31,  -2, -30,  31,  -6, -32,  32,  33, -33,  34, -35, -34,   1,

  1444.       4, -36,  -1,  35,  37,  36,   7, -37,  38,  -4, -38,  39,  41,  40, -40, -39,

  1445.       3,  42, -43, -41,  -7, -42,  43,  -3,  44, -44,  45, -45,  46,  47,   8, -47,

  1446.     -48, -46,  50, -50,  48,  49,  51, -49,  52, -52,   5, -51,  -8, -53,  53,   3,

  1447.     -56,  56,  55,  54, -54,   2,  60,  -2, -55,  58,   9,  -5,  59,  57, -57, -63,

  1448.      -3, -58, -60, -61,  61, -59, -62,  -9,   1,  64,  62,  69, -64,  63,  65, -67,

  1449.     -68,  66, -65,  68, -66, -69,  67, -70,  -1,  10,  71, -71,   4,  73,  72,  70,

  1450.       6, -76,  -3,  74, -78, -74,   1,  78,  80, -72, -75,  76,  -1,   3, -73,  79,

  1451.      75,  77,   1,  11,  -4, -79, -10,  -6,  -1, -77, -83, -80,   2,  81, -84,  -2,

  1452.      83, -81,  82, -82,  84, -87, -86,  85, -11, -85,  86, -89,  87, -88,  88,  89}

  1453. },{

  1454.     /* MapTab5 */

  1455.     2,  /* eob_sym */

  1456.     33, /* esc_sym */

  1457.     /* run table */

  1458.     {1,  1,  0,  2,  1,  2,  1,  3,  3,  1,  1,  4,  4,  2,  2,  1,

  1459.      1,  5,  5,  6,  1,  6,  1,  7,  7,  3,  3,  2,  8,  2,  8,  1,

  1460.      1,  0,  9,  9,  1,  1, 10,  4, 10,  4, 11, 11,  2,  1,  2,  1,

  1461.     12, 12,  3,  3,  1,  1, 13,  5,  5, 13, 14,  1,  1, 14,  2,  2,

  1462.      6,  6, 15,  1,  1, 15, 16,  4,  7, 16,  4,  7,  1,  1,  3,  3,

  1463.      8,  8,  2,  2,  1,  1, 17, 17,  1,  1, 18, 18,  5,  5,  2,  2,

  1464.      1,  1,  9, 19,  9, 19, 20,  3,  3, 20,  1, 10, 21,  1, 10,  4,

  1465.      4, 21, 22,  6,  6, 22,  1,  1, 23, 24,  2,  2, 23, 24, 11,  1,

  1466.      1, 11,  7, 25,  7,  1,  1, 25,  8,  8,  3, 26,  3,  1, 12,  2,

  1467.      2, 26,  1, 12,  5,  5, 27,  4,  1,  4,  1, 27, 28,  1, 28, 13,

  1468.      1, 13,  2, 29,  2,  1, 32,  6,  1, 30, 14, 29, 14,  6,  3, 31,

  1469.      3,  1, 30,  1, 32, 31, 33,  9, 33,  1,  1,  7,  9,  7,  2,  2,

  1470.      1,  1,  4, 36, 34,  4,  5, 10, 10,  5, 34,  1,  1, 35,  8,  8,

  1471.     36,  3, 35,  1, 15,  3,  2,  1, 16, 15, 16,  2, 37,  1, 37,  1,

  1472.      1,  1,  6,  6, 38,  1, 38, 11,  1, 39, 39, 40, 11,  2, 41,  4,

  1473.     40,  1,  2,  4,  1,  1,  1, 41,  3,  1,  3,  1,  5,  7,  5,  7},

  1474. 

  1475.     /* value table */

  1476.     { 1,  -1,   0,   1,   2,  -1,  -2,   1,  -1,   3,  -3,   1,  -1,   2,  -2,   4,

  1477.      -4,   1,  -1,   1,   5,  -1,  -5,   1,  -1,   2,  -2,   3,   1,  -3,  -1,   6,

  1478.      -6,   0,   1,  -1,   7,  -7,   1,   2,  -1,  -2,   1,  -1,   4,   8,  -4,  -8,

  1479.       1,  -1,   3,  -3,   9,  -9,   1,   2,  -2,  -1,   1,  10, -10,  -1,   5,  -5,

  1480.       2,  -2,   1,  11, -11,  -1,   1,   3,   2,  -1,  -3,  -2,  12, -12,   4,  -4,

  1481.       2,  -2,  -6,   6,  13, -13,   1,  -1,  14, -14,   1,  -1,   3,  -3,   7,  -7,

  1482.      15, -15,   2,   1,  -2,  -1,   1,   5,  -5,  -1, -16,   2,   1,  16,  -2,   4,

  1483.      -4,  -1,   1,   3,  -3,  -1,  17, -17,   1,   1,  -8,   8,  -1,  -1,   2,  18,

  1484.     -18,  -2,   3,   1,  -3,  19, -19,  -1,   3,  -3,   6,   1,  -6,  20,   2,   9,

  1485.      -9,  -1, -20,  -2,   4,  -4,   1,  -5,  21,   5, -21,  -1,   1, -22,  -1,   2,

  1486.      22,  -2,  10,   1, -10,  23,   1,   4, -23,   1,   2,  -1,  -2,  -4,  -7,   1,

  1487.       7, -24,  -1,  24,  -1,  -1,   1,   3,  -1, -25,  25,   4,  -3,  -4,  11, -11,

  1488.      26, -26,   6,   1,   1,  -6,  -5,  -3,   3,   5,  -1, -27,  27,   1,   4,  -4,

  1489.      -1,  -8,  -1,  28,   2,   8, -12, -28,  -2,  -2,   2,  12,  -1,  29,   1, -29,

  1490.      30, -30,   5,  -5,   1, -31,  -1,   3,  31,  -1,   1,   1,  -3, -13,   1,  -7,

  1491.      -1, -32,  13,   7,  32,  33, -33,  -1,  -9, -34,   9,  34,  -6,   5,   6,  -5}

  1492. },{

  1493.     /* MapTab6 */

  1494.     2,  /* eob_sym */

  1495.     13, /* esc_sym */

  1496.     /* run table */

  1497.     {1,  1,  0,  1,  1,  2,  2,  1,  1,  3,  3,  1,  1,  0,  2,  2,

  1498.      4,  1,  4,  1,  1,  1,  5,  5,  1,  1,  6,  6,  2,  2,  1,  1,

  1499.      3,  3,  7,  7,  1,  1,  8,  8,  1,  1,  2,  2,  1,  9,  1,  9,

  1500.      4,  4, 10,  1,  1, 10,  1,  1, 11, 11,  3,  3,  1,  2,  1,  2,

  1501.      1,  1, 12, 12,  5,  5,  1,  1, 13,  1,  1, 13,  2,  2,  1,  1,

  1502.      6,  6,  1,  1,  4, 14,  4, 14,  3,  1,  3,  1,  1,  1, 15,  7,

  1503.     15,  2,  2,  7,  1,  1,  1,  8,  1,  8, 16, 16,  1,  1,  1,  1,

  1504.      2,  1,  1,  2,  1,  1,  3,  5,  5,  3,  4,  1,  1,  4,  1,  1,

  1505.     17, 17,  9,  1,  1,  9,  2,  2,  1,  1, 10, 10,  1,  6,  1,  1,

  1506.      6, 18,  1,  1, 18,  1,  1,  1,  2,  2,  3,  1,  3,  1,  1,  1,

  1507.      4,  1, 19,  1, 19,  7,  1,  1, 20,  1,  4, 20,  1,  7, 11,  2,

  1508.      1, 11, 21,  2,  8,  5,  1,  8,  1,  5, 21,  1,  1,  1, 22,  1,

  1509.      1, 22,  1,  1,  3,  3,  1, 23,  2, 12, 24,  1,  1,  2,  1,  1,

  1510.     12, 23,  1,  1, 24,  1,  1,  1,  4,  1,  1,  1,  2,  1,  6,  6,

  1511.      4,  2,  1,  1,  1,  1,  1,  1,  1, 14, 13,  3,  1, 25,  9, 25,

  1512.     14,  1,  9,  3, 13,  1,  1,  1,  1,  1, 10,  1,  1,  2, 10,  2},

  1513. 

  1514.     /* value table */

  1515.     {-20,  -1,   0,   2,  -2,   1,  -1,   3,  -3,   1,  -1,   4,  -4,   0,   2,  -2,

  1516.        1,   5,  -1,  -5,   6,  -6,   1,  -1,   7,  -7,   1,  -1,   3,  -3,   8,  -8,

  1517.        2,  -2,   1,  -1,   9,  -9,   1,  -1,  10, -10,   4,  -4,  11,   1, -11,  -1,

  1518.        2,  -2,   1,  12, -12,  -1,  13, -13,   1,  -1,   3,  -3,  14,   5, -14,  -5,

  1519.      -15,  15,  -1,   1,   2,  -2,  16, -16,   1,  17, -17,  -1,   6,  -6,  18, -18,

  1520.        2,  -2, -19,  19,  -3,   1,   3,  -1,   4,  20,  -4,   1, -21,  21,   1,   2,

  1521.       -1,  -7,   7,  -2,  22, -22,  23,   2, -23,  -2,   1,  -1, -24,  24, -25,  25,

  1522.       -8, -26,  26,   8, -27,  27,   5,   3,  -3,  -5,  -4,  28, -28,   4,  29, -29,

  1523.        1,  -1,  -2, -30,  30,   2,   9,  -9, -31,  31,   2,  -2, -32,   3,  32, -33,

  1524.       -3,   1,  33, -34,  -1,  34, -35,  35, -10,  10,  -6,  36,   6, -36,  37, -37,

  1525.       -5,  38,   1, -38,  -1,   3,  39, -39,  -1,  40,   5,   1, -40,  -3,   2, -11,

  1526.      -41,  -2,   1,  11,  -3,  -4,  41,   3,  42,   4,  -1, -43, -42,  43,   1, -44,

  1527.       45,  -1,  44, -45,  -7,   7, -46,   1, -12,   2,   1, -47,  46,  12,  47,  48,

  1528.       -2,  -1, -48,  49,  -1, -50, -49,  50,  -6, -51,  51,  52, -13,  53,  -4,   4,

  1529.        6,  13, -53, -52, -54,  55,  54, -55, -56,  -2,   2,  -8,  56,   1,  -3,  -1,

  1530.        2,  58,   3,   8,  -2,  57, -58, -60, -59, -57,  -3,  60,  59, -14,   3,  14}

  1531. },{

  1532.     /* MapTab7 */

  1533.     2,  /* eob_sym */

  1534.     38, /* esc_sym */

  1535.     /* run table */

  1536.     {1,  1,  0,  2,  2,  1,  1,  3,  3,  4,  4,  5,  5,  1,  1,  6,

  1537.      6,  2,  2,  7,  7,  8,  8,  1,  1,  3,  3,  9,  9, 10, 10,  1,

  1538.      1,  2,  2,  4,  4, 11,  0, 11, 12, 12, 13, 13,  1,  1,  5,  5,

  1539.     14, 14, 15, 16, 15, 16,  3,  3,  1,  6,  1,  6,  2,  2,  7,  7,

  1540.      8,  8, 17, 17,  1,  1,  4,  4, 18, 18,  2,  2,  1, 19,  1, 20,

  1541.     19, 20, 21, 21,  3,  3, 22, 22,  5,  5, 24,  1,  1, 23,  9, 23,

  1542.     24,  9,  2,  2, 10,  1,  1, 10,  6,  6, 25,  4,  4, 25,  7,  7,

  1543.     26,  8,  1,  8,  3,  1, 26,  3, 11, 11, 27, 27,  2, 28,  1,  2,

  1544.     28,  1, 12, 12,  5,  5, 29, 13, 13, 29, 32,  1,  1, 33, 31, 30,

  1545.     32,  4, 30, 33,  4, 31,  3, 14,  1,  1,  3, 34, 34,  2,  2, 14,

  1546.      6,  6, 35, 36, 35, 36,  1, 15,  1, 16, 16, 15,  7,  9,  7,  9,

  1547.     37,  8,  8, 37,  1,  1, 39,  2, 38, 39,  2, 40,  5, 38, 40,  5,

  1548.      3,  3,  4,  4, 10, 10,  1,  1,  1,  1, 41,  2, 41,  2,  6,  6,

  1549.      1,  1, 11, 42, 11, 43,  3, 42,  3, 17,  4, 43,  1, 17,  7,  1,

  1550.      8, 44,  4,  7, 44,  5,  8,  2,  5,  1,  2, 48, 45,  1, 12, 45,

  1551.     12, 48, 13, 13,  1,  9,  9, 46,  1, 46, 47, 47, 49, 18, 18, 49},

  1552. 

  1553.     /* value table */

  1554.     { 1,  -1,   0,   1,  -1,   2,  -2,   1,  -1,   1,  -1,   1,  -1,   3,  -3,   1,

  1555.      -1,  -2,   2,   1,  -1,   1,  -1,   4,  -4,  -2,   2,   1,  -1,   1,  -1,   5,

  1556.      -5,  -3,   3,   2,  -2,   1,   0,  -1,   1,  -1,   1,  -1,   6,  -6,   2,  -2,

  1557.       1,  -1,   1,   1,  -1,  -1,  -3,   3,   7,   2,  -7,  -2,  -4,   4,   2,  -2,

  1558.       2,  -2,   1,  -1,   8,  -8,   3,  -3,   1,  -1,  -5,   5,   9,   1,  -9,   1,

  1559.      -1,  -1,   1,  -1,  -4,   4,   1,  -1,   3,  -3,   1, -10,  10,   1,   2,  -1,

  1560.      -1,  -2,   6,  -6,   2,  11, -11,  -2,   3,  -3,   1,  -4,   4,  -1,   3,  -3,

  1561.       1,   3,  12,  -3,  -5, -12,  -1,   5,   2,  -2,   1,  -1,  -7,   1,  13,   7,

  1562.      -1, -13,   2,  -2,   4,  -4,   1,   2,  -2,  -1,   1,  14, -14,   1,   1,   1,

  1563.      -1,  -5,  -1,  -1,   5,  -1,  -6,   2, -15,  15,   6,   1,  -1,  -8,   8,  -2,

  1564.      -4,   4,   1,   1,  -1,  -1,  16,   2, -16,  -2,   2,  -2,   4,   3,  -4,  -3,

  1565.      -1,  -4,   4,   1, -17,  17,  -1,  -9,   1,   1,   9,   1,  -5,  -1,  -1,   5,

  1566.      -7,   7,   6,  -6,   3,  -3,  18, -18,  19, -19,   1, -10,  -1,  10,  -5,   5,

  1567.      20, -20,  -3,   1,   3,   1,   8,  -1,  -8,   2,   7,  -1, -21,  -2,   5,  21,

  1568.       5,  -1,  -7,  -5,   1,  -6,  -5, -11,   6,  22,  11,   1,   1, -22,  -3,  -1,

  1569.       3,  -1,   3,  -3, -23,   4,  -4,   1,  23,  -1,   1,  -1,   1,  -2,   2,  -1}

  1570. },{

  1571.     /* MapTab8 */

  1572.     4,  /* eob_sym */

  1573.     11, /* esc_sym */

  1574.     /* run table */

  1575.     {1,  1,  1,  1,  0,  2,  2,  1,  1,  3,  3,  0,  1,  1,  2,  2,

  1576.      4,  4,  1,  1,  5,  5,  1,  1,  2,  2,  3,  3,  6,  6,  1,  1,

  1577.      7,  7,  8,  1,  8,  2,  2,  1,  4,  4,  1,  3,  1,  3,  9,  9,

  1578.      2,  2,  1,  5,  1,  5, 10, 10,  1,  1, 11, 11,  3,  6,  3,  4,

  1579.      4,  6,  2,  2,  1, 12,  1, 12,  7, 13,  7, 13,  1,  1,  8,  8,

  1580.      2,  2, 14, 14, 16, 15, 16,  5,  5,  1,  3, 15,  1,  3,  4,  4,

  1581.      1,  1, 17, 17,  2,  2,  6,  6,  1, 18,  1, 18, 22, 21, 22, 21,

  1582.     25, 24, 25, 19,  9, 20,  9, 23, 19, 24, 20,  3, 23,  7,  3,  1,

  1583.      1,  7, 28, 26, 29,  5, 28, 26,  5,  8, 29,  4,  8, 27,  2,  2,

  1584.      4, 27,  1,  1, 10, 36, 10, 33, 33, 36, 30,  1, 32, 32,  1, 30,

  1585.      6, 31, 31, 35,  3,  6, 11, 11,  3,  2, 35,  2, 34,  1, 34,  1,

  1586.     37, 37, 12,  7, 12,  5, 41,  5,  4,  7,  1,  8, 13,  4,  1, 41,

  1587.     13, 38,  8, 38,  9,  1, 40, 40,  9,  1, 39,  2,  2, 49, 39, 42,

  1588.      3,  3, 14, 16, 49, 14, 16, 42, 43, 43,  6,  6, 15,  1,  1, 15,

  1589.     44, 44,  1,  1, 50, 48,  4,  5,  4,  7,  5,  2, 10, 10, 48,  7,

  1590.     50, 45,  2,  1, 45,  8,  8,  1, 46, 46,  3, 47, 47,  3,  1,  1},

  1591. 

  1592.     /* value table */

  1593.     { 1,  -1,   2,  -2,   0,   1,  -1,   3,  -3,   1,  -1,   0,   4,  -4,   2,  -2,

  1594.       1,  -1,   5,  -5,   1,  -1,   6,  -6,   3,  -3,   2,  -2,   1,  -1,   7,  -7,

  1595.       1,  -1,   1,   8,  -1,   4,  -4,  -8,   2,  -2,   9,   3,  -9,  -3,   1,  -1,

  1596.       5,  -5,  10,   2, -10,  -2,   1,  -1,  11, -11,   1,  -1,  -4,   2,   4,   3,

  1597.      -3,  -2,   6,  -6,  12,   1, -12,  -1,   2,   1,  -2,  -1,  13, -13,   2,  -2,

  1598.       7,  -7,   1,  -1,   1,   1,  -1,   3,  -3,  14,   5,  -1, -14,  -5,   4,  -4,

  1599.      15, -15,   1,  -1,   8,  -8,  -3,   3,  16,   1, -16,  -1,   1,   1,  -1,  -1,

  1600.       1,   1,  -1,   1,   2,   1,  -2,   1,  -1,  -1,  -1,   6,  -1,   3,  -6,  17,

  1601.     -17,  -3,   1,   1,   1,   4,  -1,  -1,  -4,   3,  -1,   5,  -3,  -1,  -9,   9,

  1602.      -5,   1,  18, -18,   2,   1,  -2,   1,  -1,  -1,   1,  19,  -1,   1, -19,  -1,

  1603.       4,   1,  -1,   1,   7,  -4,  -2,   2,  -7,  10,  -1, -10,   1,  20,  -1, -20,

  1604.       1,  -1,   2,   4,  -2,   5,   1,  -5,   6,  -4,  21,   4,   2,  -6, -21,  -1,

  1605.      -2,   1,  -4,  -1,  -3,  22,  -1,   1,   3, -22,  -1,  11, -11,   1,   1,   1,

  1606.       8,  -8,   2,   2,  -1,  -2,  -2,  -1,   1,  -1,  -5,   5,   2,  23, -23,  -2,

  1607.       1,  -1,  24, -24,  -1,  -1,   7,   6,  -7,   5,  -6,  12,  -3,   3,   1,  -5,

  1608.       1,   1, -12,  25,  -1,  -5,   5, -25,  -1,   1,   9,   1,  -1,  -9,  26, -26}

  1609. }

  1610. };