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b668662939
This avoids the danger that get_bits.h might get indirectly #included before BITSTREAM_READER_LE is defined. Also sort headers into canonical order where appropriate.
1560 lines
63 KiB
C
1560 lines
63 KiB
C
/*
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* common functions for Indeo Video Interactive codecs (Indeo4 and Indeo5)
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*
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* Copyright (c) 2009 Maxim Poliakovski
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*
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* This file is part of Libav.
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*
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* Libav is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* Libav is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with Libav; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file
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* This file contains functions and data shared by both Indeo4 and
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* Indeo5 decoders.
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*/
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#include <inttypes.h>
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#include "libavutil/attributes.h"
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#include "libavutil/timer.h"
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#define BITSTREAM_READER_LE
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#include "avcodec.h"
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#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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/**
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* These are 2x8 predefined Huffman codebooks for coding macroblock/block
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* signals. They are specified using "huffman descriptors" in order to
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* avoid huge static tables. The decoding tables will be generated at
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* startup from these descriptors.
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*/
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/** static macroblock huffman tables */
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static const IVIHuffDesc ivi_mb_huff_desc[8] = {
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{8, {0, 4, 5, 4, 4, 4, 6, 6}},
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{12, {0, 2, 2, 3, 3, 3, 3, 5, 3, 2, 2, 2}},
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{12, {0, 2, 3, 4, 3, 3, 3, 3, 4, 3, 2, 2}},
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{12, {0, 3, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2}},
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{13, {0, 4, 4, 3, 3, 3, 3, 2, 3, 3, 2, 1, 1}},
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{9, {0, 4, 4, 4, 4, 3, 3, 3, 2}},
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{10, {0, 4, 4, 4, 4, 3, 3, 2, 2, 2}},
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{12, {0, 4, 4, 4, 3, 3, 2, 3, 2, 2, 2, 2}}
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};
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/** static block huffman tables */
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static const IVIHuffDesc ivi_blk_huff_desc[8] = {
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{10, {1, 2, 3, 4, 4, 7, 5, 5, 4, 1}},
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{11, {2, 3, 4, 4, 4, 7, 5, 4, 3, 3, 2}},
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{12, {2, 4, 5, 5, 5, 5, 6, 4, 4, 3, 1, 1}},
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{13, {3, 3, 4, 4, 5, 6, 6, 4, 4, 3, 2, 1, 1}},
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{11, {3, 4, 4, 5, 5, 5, 6, 5, 4, 2, 2}},
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{13, {3, 4, 5, 5, 5, 5, 6, 4, 3, 3, 2, 1, 1}},
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{13, {3, 4, 5, 5, 5, 6, 5, 4, 3, 3, 2, 1, 1}},
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{9, {3, 4, 4, 5, 5, 5, 6, 5, 5}}
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};
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static VLC ivi_mb_vlc_tabs [8]; ///< static macroblock Huffman tables
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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,
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uint32_t pitch, int mc_type);
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typedef void (*ivi_mc_avg_func) (int16_t *buf, const int16_t *ref_buf1,
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const int16_t *ref_buf2,
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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,
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int offs, int mv_x, int mv_y, int mv_x2, int mv_y2,
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int mc_type, int mc_type2)
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{
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int ref_offs = offs + mv_y * band->pitch + mv_x;
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int buf_size = band->pitch * band->aheight;
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int min_size = band->pitch * (band->blk_size - 1) + band->blk_size;
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int ref_size = (mc_type > 1) * band->pitch + (mc_type & 1);
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if (mc_type != -1) {
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if (offs < 0 || ref_offs < 0 || !band->ref_buf)
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return AVERROR_INVALIDDATA;
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if (buf_size - min_size < offs)
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return AVERROR_INVALIDDATA;
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if (buf_size - min_size - ref_size < ref_offs)
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return AVERROR_INVALIDDATA;
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}
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if (mc_type2 == -1) {
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mc(band->buf + offs, band->ref_buf + ref_offs, band->pitch, mc_type);
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} else {
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int ref_offs2 = offs + mv_y2 * band->pitch + mv_x2;
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int ref_size2 = (mc_type2 > 1) * band->pitch + (mc_type2 & 1);
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if (offs < 0 || ref_offs2 < 0 || !band->b_ref_buf)
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return AVERROR_INVALIDDATA;
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if (buf_size - min_size - ref_size2 < ref_offs2)
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return AVERROR_INVALIDDATA;
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if (mc_type == -1)
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mc(band->buf + offs, band->b_ref_buf + ref_offs2,
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band->pitch, mc_type2);
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else
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mc_avg(band->buf + offs, band->ref_buf + ref_offs,
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band->b_ref_buf + ref_offs2, band->pitch,
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mc_type, mc_type2);
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}
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return 0;
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}
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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.
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*/
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static uint16_t inv_bits(uint16_t val, int nbits)
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{
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uint16_t res;
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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) +
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(ff_reverse[val >> 8])) >> (16 - nbits);
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return res;
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}
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/*
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* Generate a huffman codebook from the given descriptor
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* and convert it into the Libav VLC table.
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*
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* @param[in] cb pointer to codebook descriptor
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* @param[out] vlc where to place the generated VLC table
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* @param[in] flag flag: 1 - for static or 0 for dynamic tables
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* @return result code: 0 - OK, -1 = error (invalid codebook descriptor)
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*/
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static int ivi_create_huff_from_desc(const IVIHuffDesc *cb, VLC *vlc, int flag)
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{
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int pos, i, j, codes_per_row, prefix, not_last_row;
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uint16_t codewords[256]; /* FIXME: move this temporal storage out? */
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uint8_t bits[256];
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pos = 0; /* current position = 0 */
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for (i = 0; i < cb->num_rows; i++) {
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codes_per_row = 1 << cb->xbits[i];
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not_last_row = (i != cb->num_rows - 1);
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prefix = ((1 << i) - 1) << (cb->xbits[i] + not_last_row);
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for (j = 0; j < codes_per_row; j++) {
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if (pos >= 256) /* Some Indeo5 codebooks can have more than 256 */
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break; /* elements, but only 256 codes are allowed! */
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bits[pos] = i + cb->xbits[i] + not_last_row;
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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]);
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if (!bits[pos])
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bits[pos] = 1;
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pos++;
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}//for j
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}//for i
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/* number of codewords = pos */
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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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}
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av_cold void ff_ivi_init_static_vlc(void)
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{
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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;
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if (initialized_vlcs)
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return;
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for (i = 0; i < 8; i++) {
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ivi_mb_vlc_tabs[i].table = table_data + i * 2 * 8192;
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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;
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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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}
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initialized_vlcs = 1;
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}
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/*
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* Copy huffman codebook descriptors.
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*
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* @param[out] dst ptr to the destination descriptor
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* @param[in] src ptr to the source descriptor
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*/
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static void ivi_huff_desc_copy(IVIHuffDesc *dst, const IVIHuffDesc *src)
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{
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dst->num_rows = src->num_rows;
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memcpy(dst->xbits, src->xbits, src->num_rows);
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}
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/*
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* Compare two huffman codebook descriptors.
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*
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* @param[in] desc1 ptr to the 1st descriptor to compare
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* @param[in] desc2 ptr to the 2nd descriptor to compare
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* @return comparison result: 0 - equal, 1 - not equal
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*/
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static int ivi_huff_desc_cmp(const IVIHuffDesc *desc1,
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const IVIHuffDesc *desc2)
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{
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return desc1->num_rows != desc2->num_rows ||
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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,
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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) {
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/* 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];
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return 0;
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}
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huff_tab->tab_sel = get_bits(gb, 3);
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if (huff_tab->tab_sel == 7) {
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/* custom huffman table (explicitly encoded) */
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new_huff.num_rows = get_bits(gb, 4);
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if (!new_huff.num_rows) {
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av_log(avctx, AV_LOG_ERROR, "Empty custom Huffman table!\n");
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return AVERROR_INVALIDDATA;
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}
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for (i = 0; i < new_huff.num_rows; i++)
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new_huff.xbits[i] = get_bits(gb, 4);
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/* 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)) {
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ivi_huff_desc_copy(&huff_tab->cust_desc, &new_huff);
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if (huff_tab->cust_tab.table)
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ff_free_vlc(&huff_tab->cust_tab);
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result = ivi_create_huff_from_desc(&huff_tab->cust_desc,
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&huff_tab->cust_tab, 0);
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if (result) {
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// reset faulty description
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huff_tab->cust_desc.num_rows = 0;
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av_log(avctx, AV_LOG_ERROR,
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"Error while initializing custom vlc table!\n");
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return result;
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}
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}
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huff_tab->tab = &huff_tab->cust_tab;
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} else {
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/* select one of predefined tables */
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huff_tab->tab = (which_tab) ? &ivi_blk_vlc_tabs[huff_tab->tab_sel]
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: &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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/*
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* Free planes, bands and macroblocks buffers.
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*
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* @param[in] planes pointer to the array of the plane descriptors
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*/
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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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for (b = 0; b < planes[p].num_bands; b++) {
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av_freep(&planes[p].bands[b].bufs[0]);
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av_freep(&planes[p].bands[b].bufs[1]);
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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)
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ff_free_vlc(&planes[p].bands[b].blk_vlc.cust_tab);
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for (t = 0; t < planes[p].bands[b].num_tiles; t++)
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av_freep(&planes[p].bands[b].tiles[t].mbs);
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av_freep(&planes[p].bands[b].tiles);
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}
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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,
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int is_indeo4)
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{
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int p, b;
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uint32_t b_width, b_height, align_fac, width_aligned,
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height_aligned, buf_size;
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IVIBandDesc *band;
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ivi_free_buffers(planes);
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if (cfg->pic_width < 1 || cfg->pic_height < 1 ||
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cfg->luma_bands < 1 || cfg->chroma_bands < 1)
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return AVERROR_INVALIDDATA;
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/* fill in the descriptor of the luminance plane */
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planes[0].width = cfg->pic_width;
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planes[0].height = cfg->pic_height;
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planes[0].num_bands = cfg->luma_bands;
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/* fill in the descriptors of the chrominance planes */
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planes[1].width = planes[2].width = (cfg->pic_width + 3) >> 2;
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planes[1].height = planes[2].height = (cfg->pic_height + 3) >> 2;
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planes[1].num_bands = planes[2].num_bands = cfg->chroma_bands;
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for (p = 0; p < 3; p++) {
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planes[p].bands = av_mallocz(planes[p].num_bands * sizeof(IVIBandDesc));
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if (!planes[p].bands)
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return AVERROR(ENOMEM);
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/* select band dimensions: if there is only one band then it
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* has the full size, if there are several bands each of them
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* has only half size */
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b_width = planes[p].num_bands == 1 ? planes[p].width
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: (planes[p].width + 1) >> 1;
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b_height = planes[p].num_bands == 1 ? planes[p].height
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: (planes[p].height + 1) >> 1;
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/* luma band buffers will be aligned on 16x16 (max macroblock size) */
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/* chroma band buffers will be aligned on 8x8 (max macroblock size) */
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align_fac = p ? 8 : 16;
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width_aligned = FFALIGN(b_width , align_fac);
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height_aligned = FFALIGN(b_height, align_fac);
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buf_size = width_aligned * height_aligned * sizeof(int16_t);
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for (b = 0; b < planes[p].num_bands; b++) {
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band = &planes[p].bands[b]; /* select appropriate plane/band */
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band->plane = p;
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band->band_num = b;
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band->width = b_width;
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band->height = b_height;
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band->pitch = width_aligned;
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band->aheight = height_aligned;
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band->bufs[0] = av_mallocz(buf_size);
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band->bufs[1] = av_mallocz(buf_size);
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if (!band->bufs[0] || !band->bufs[1])
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return AVERROR(ENOMEM);
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/* allocate the 3rd band buffer for scalability mode */
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if (cfg->luma_bands > 1) {
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band->bufs[2] = av_mallocz(buf_size);
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if (!band->bufs[2])
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return AVERROR(ENOMEM);
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}
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if (is_indeo4) {
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band->bufs[3] = av_mallocz(buf_size);
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if (!band->bufs[3])
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return AVERROR(ENOMEM);
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}
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/* reset custom vlc */
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planes[p].bands[0].blk_vlc.cust_desc.num_rows = 0;
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}
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}
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return 0;
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}
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static int ivi_init_tiles(IVIBandDesc *band, IVITile *ref_tile,
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int p, int b, int t_height, int t_width)
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{
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int x, y;
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IVITile *tile = band->tiles;
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for (y = 0; y < band->height; y += t_height) {
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for (x = 0; x < band->width; x += t_width) {
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tile->xpos = x;
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tile->ypos = y;
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tile->mb_size = band->mb_size;
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tile->width = FFMIN(band->width - x, t_width);
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tile->height = FFMIN(band->height - y, t_height);
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tile->is_empty = tile->data_size = 0;
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/* calculate number of macroblocks */
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tile->num_MBs = IVI_MBs_PER_TILE(tile->width, tile->height,
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band->mb_size);
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av_freep(&tile->mbs);
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tile->mbs = av_malloc(tile->num_MBs * sizeof(IVIMbInfo));
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if (!tile->mbs)
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return AVERROR(ENOMEM);
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tile->ref_mbs = 0;
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if (p || b) {
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if (tile->num_MBs != ref_tile->num_MBs)
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return AVERROR_INVALIDDATA;
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tile->ref_mbs = ref_tile->mbs;
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ref_tile++;
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}
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tile++;
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}
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}
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return 0;
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}
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av_cold int ff_ivi_init_tiles(IVIPlaneDesc *planes,
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int tile_width, int tile_height)
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{
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int p, b, x_tiles, y_tiles, t_width, t_height, ret;
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IVIBandDesc *band;
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for (p = 0; p < 3; p++) {
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t_width = !p ? tile_width : (tile_width + 3) >> 2;
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t_height = !p ? tile_height : (tile_height + 3) >> 2;
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if (!p && planes[0].num_bands == 4) {
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t_width >>= 1;
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t_height >>= 1;
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}
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for (b = 0; b < planes[p].num_bands; b++) {
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band = &planes[p].bands[b];
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x_tiles = IVI_NUM_TILES(band->width, t_width);
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y_tiles = IVI_NUM_TILES(band->height, t_height);
|
|
band->num_tiles = x_tiles * y_tiles;
|
|
|
|
av_freep(&band->tiles);
|
|
band->tiles = av_mallocz(band->num_tiles * sizeof(IVITile));
|
|
if (!band->tiles)
|
|
return AVERROR(ENOMEM);
|
|
|
|
/* use the first luma band as reference for motion vectors
|
|
* and quant */
|
|
ret = ivi_init_tiles(band, planes[0].bands[0].tiles,
|
|
p, b, t_height, t_width);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* 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)
|
|
{
|
|
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;
|
|
}
|
|
|
|
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 (!band->dc_transform)
|
|
return 0;
|
|
|
|
|
|
if (min_size > buf_size)
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
band->dc_transform(prev_dc, band->buf + buf_offs,
|
|
band->pitch, blk_size);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ivi_decode_coded_blocks(GetBitContext *gb, IVIBandDesc *band,
|
|
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,
|
|
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;
|
|
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;
|
|
|
|
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) {
|
|
av_log(avctx, AV_LOG_ERROR, "Invalid sym encountered: %"PRIu32".\n", sym);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
run = rvmap->runtab[sym];
|
|
val = rvmap->valtab[sym];
|
|
}
|
|
|
|
/* de-zigzag and dequantize */
|
|
scan_pos += run;
|
|
if (scan_pos >= num_coeffs || scan_pos < 0)
|
|
break;
|
|
pos = band->scan[scan_pos];
|
|
|
|
if (!val)
|
|
ff_dlog(avctx, "Val = 0 encountered!\n");
|
|
|
|
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;
|
|
}
|
|
|
|
if (scan_pos < 0 || scan_pos >= num_coeffs && sym != rvmap->eob_sym)
|
|
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;
|
|
}
|
|
|
|
/* apply inverse transform */
|
|
band->inv_transform(trvec, band->buf + offs,
|
|
band->pitch, col_flags);
|
|
|
|
/* apply motion compensation */
|
|
if (!is_intra)
|
|
return ivi_mc(band, mc, mc_avg, offs, mv_x, mv_y, mv_x2, mv_y2,
|
|
mc_type, mc_type2);
|
|
|
|
return 0;
|
|
}
|
|
/*
|
|
* 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)
|
|
*/
|
|
static int ivi_decode_blocks(GetBitContext *gb, IVIBandDesc *band,
|
|
IVITile *tile, AVCodecContext *avctx)
|
|
{
|
|
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;
|
|
int32_t prev_dc;
|
|
uint32_t cbp, quant, buf_offs;
|
|
IVIMbInfo *mb;
|
|
ivi_mc_func mc_with_delta_func, mc_no_delta_func;
|
|
ivi_mc_avg_func mc_avg_with_delta_func, mc_avg_no_delta_func;
|
|
const uint8_t *scale_tab;
|
|
|
|
/* init intra prediction for the DC coefficient */
|
|
prev_dc = 0;
|
|
blk_size = band->blk_size;
|
|
/* number of blocks per mb */
|
|
num_blocks = (band->mb_size != blk_size) ? 4 : 1;
|
|
if (blk_size == 8) {
|
|
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;
|
|
} else {
|
|
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;
|
|
}
|
|
|
|
for (mbn = 0, mb = tile->mbs; mbn < tile->num_MBs; mb++, mbn++) {
|
|
is_intra = !mb->type;
|
|
cbp = mb->cbp;
|
|
buf_offs = mb->buf_offs;
|
|
|
|
quant = band->glob_quant + mb->q_delta;
|
|
if (avctx->codec_id == AV_CODEC_ID_INDEO4)
|
|
quant = av_clip(quant, 0, 31);
|
|
else
|
|
quant = av_clip(quant, 0, 23);
|
|
|
|
scale_tab = is_intra ? band->intra_scale : band->inter_scale;
|
|
if (scale_tab)
|
|
quant = scale_tab[quant];
|
|
|
|
if (!is_intra) {
|
|
mv_x = mb->mv_x;
|
|
mv_y = mb->mv_y;
|
|
mv_x2 = mb->b_mv_x;
|
|
mv_y2 = mb->b_mv_y;
|
|
if (band->is_halfpel) {
|
|
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 */
|
|
}
|
|
if (mb->type == 2)
|
|
mc_type = -1;
|
|
if (mb->type != 2 && mb->type != 3)
|
|
mc_type2 = -1;
|
|
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;
|
|
|
|
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;
|
|
|
|
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;
|
|
}
|
|
}
|
|
}
|
|
|
|
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 ? */
|
|
ret = ivi_decode_coded_blocks(gb, band, mc_with_delta_func,
|
|
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);
|
|
if (ret < 0)
|
|
return ret;
|
|
} else {
|
|
/* block not coded */
|
|
/* for intra blocks apply the dc slant transform */
|
|
/* for inter - perform the motion compensation without delta */
|
|
if (is_intra) {
|
|
ret = ivi_dc_transform(band, &prev_dc, buf_offs, blk_size);
|
|
if (ret < 0)
|
|
return ret;
|
|
} else {
|
|
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);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
cbp >>= 1;
|
|
}// for blk
|
|
}// for mbn
|
|
|
|
align_get_bits(gb);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* 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
|
|
*/
|
|
static int ivi_process_empty_tile(AVCodecContext *avctx, IVIBandDesc *band,
|
|
IVITile *tile, int32_t mv_scale)
|
|
{
|
|
int x, y, need_mc, mbn, blk, num_blocks, mv_x, mv_y, mc_type;
|
|
int offs, mb_offset, row_offset, ret;
|
|
IVIMbInfo *mb, *ref_mb;
|
|
const int16_t *src;
|
|
int16_t *dst;
|
|
ivi_mc_func mc_no_delta_func;
|
|
|
|
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",
|
|
tile->num_MBs, IVI_MBs_PER_TILE(tile->width, tile->height, band->mb_size));
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
|
|
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;
|
|
|
|
if (band->inherit_mv && ref_mb) {
|
|
/* 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 */
|
|
}
|
|
|
|
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);
|
|
ret = ivi_mc(band, mc_no_delta_func, 0, offs,
|
|
mv_x, mv_y, 0, 0, mc_type, -1);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
}
|
|
} 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;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
#ifdef DEBUG
|
|
static uint16_t ivi_calc_band_checksum(IVIBandDesc *band)
|
|
{
|
|
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
|
|
|
|
/*
|
|
* 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)
|
|
{
|
|
int x, y;
|
|
const int16_t *src = plane->bands[0].buf;
|
|
uint32_t pitch = plane->bands[0].pitch;
|
|
|
|
if (!src)
|
|
return;
|
|
|
|
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;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* 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
|
|
*/
|
|
static int decode_band(IVI45DecContext *ctx,
|
|
IVIBandDesc *band, AVCodecContext *avctx)
|
|
{
|
|
int result, i, t, idx1, idx2, pos;
|
|
IVITile *tile;
|
|
|
|
band->buf = band->bufs[ctx->dst_buf];
|
|
if (!band->buf) {
|
|
av_log(avctx, AV_LOG_ERROR, "Band buffer points to no data!\n");
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
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);
|
|
|
|
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]);
|
|
}
|
|
|
|
pos = get_bits_count(&ctx->gb);
|
|
|
|
for (t = 0; t < band->num_tiles; t++) {
|
|
tile = &band->tiles[t];
|
|
|
|
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;
|
|
}
|
|
tile->is_empty = get_bits1(&ctx->gb);
|
|
if (tile->is_empty) {
|
|
result = ivi_process_empty_tile(avctx, band, tile,
|
|
(ctx->planes[0].bands[0].mb_size >> 3) - (band->mb_size >> 3));
|
|
if (result < 0)
|
|
break;
|
|
ff_dlog(avctx, "Empty tile encountered!\n");
|
|
} else {
|
|
tile->data_size = ivi_dec_tile_data_size(&ctx->gb);
|
|
if (!tile->data_size) {
|
|
av_log(avctx, AV_LOG_ERROR, "Tile data size is zero!\n");
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
|
|
result = ctx->decode_mb_info(ctx, band, tile, avctx);
|
|
if (result < 0)
|
|
break;
|
|
|
|
result = ivi_decode_blocks(&ctx->gb, band, tile, avctx);
|
|
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;
|
|
break;
|
|
}
|
|
|
|
pos += tile->data_size << 3; // skip to next tile
|
|
}
|
|
}
|
|
|
|
/* restore the selected rvmap table by applying its corrections in
|
|
* reverse order */
|
|
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]);
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
if (band->checksum_present) {
|
|
uint16_t chksum = ivi_calc_band_checksum(band);
|
|
if (chksum != band->checksum) {
|
|
av_log(avctx, AV_LOG_ERROR,
|
|
"Band checksum mismatch! Plane %d, band %d, "
|
|
"received: %"PRIx32", calculated: %"PRIx16"\n",
|
|
band->plane, band->band_num, band->checksum, chksum);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
align_get_bits(&ctx->gb);
|
|
|
|
return result;
|
|
}
|
|
|
|
int ff_ivi_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
|
|
AVPacket *avpkt)
|
|
{
|
|
IVI45DecContext *ctx = avctx->priv_data;
|
|
const uint8_t *buf = avpkt->data;
|
|
AVFrame *frame = data;
|
|
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);
|
|
return result;
|
|
}
|
|
if (ctx->gop_invalid)
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
if (ctx->is_indeo4 && ctx->frame_type == IVI4_FRAMETYPE_NULL_LAST) {
|
|
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;
|
|
}
|
|
|
|
if (ctx->gop_flags & IVI5_IS_PROTECTED) {
|
|
avpriv_report_missing_feature(avctx, "Password-protected clip");
|
|
return AVERROR_PATCHWELCOME;
|
|
}
|
|
|
|
if (!ctx->planes[0].bands) {
|
|
av_log(avctx, AV_LOG_ERROR, "Color planes not initialized yet\n");
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
|
|
ctx->switch_buffers(ctx);
|
|
|
|
//{ START_TIMER;
|
|
|
|
if (ctx->is_nonnull_frame(ctx)) {
|
|
for (p = 0; p < 3; p++) {
|
|
for (b = 0; b < ctx->planes[p].num_bands; b++) {
|
|
result = decode_band(ctx, &ctx->planes[p].bands[b], avctx);
|
|
if (result < 0) {
|
|
av_log(avctx, AV_LOG_ERROR,
|
|
"Error while decoding band: %d, plane: %d\n", b, p);
|
|
return result;
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
if (ctx->is_scalable)
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
for (p = 0; p < 3; p++) {
|
|
if (!ctx->planes[p].bands[0].buf)
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
}
|
|
|
|
//STOP_TIMER("decode_planes"); }
|
|
|
|
result = ff_set_dimensions(avctx, ctx->planes[0].width, ctx->planes[0].height);
|
|
if (result < 0)
|
|
return result;
|
|
|
|
if ((result = ff_get_buffer(avctx, frame, 0)) < 0) {
|
|
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
|
|
return result;
|
|
}
|
|
|
|
if (ctx->is_scalable) {
|
|
if (ctx->is_indeo4)
|
|
ff_ivi_recompose_haar(&ctx->planes[0], frame->data[0], frame->linesize[0]);
|
|
else
|
|
ff_ivi_recompose53 (&ctx->planes[0], frame->data[0], frame->linesize[0]);
|
|
} else {
|
|
ivi_output_plane(&ctx->planes[0], frame->data[0], frame->linesize[0]);
|
|
}
|
|
|
|
ivi_output_plane(&ctx->planes[2], frame->data[1], frame->linesize[1]);
|
|
ivi_output_plane(&ctx->planes[1], frame->data[2], frame->linesize[2]);
|
|
|
|
*got_frame = 1;
|
|
|
|
/* 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.
|
|
*/
|
|
if (ctx->is_indeo4 && ctx->frame_type == IVI4_FRAMETYPE_INTRA) {
|
|
int left;
|
|
|
|
while (get_bits(&ctx->gb, 8)); // skip version string
|
|
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);
|
|
}
|
|
}
|
|
|
|
if (ctx->show_indeo4_info) {
|
|
if (ctx->is_scalable)
|
|
av_log(avctx, AV_LOG_DEBUG, "This video uses scalability mode\n");
|
|
if (ctx->uses_tiling)
|
|
av_log(avctx, AV_LOG_DEBUG, "This video uses local decoding\n");
|
|
if (ctx->has_b_frames)
|
|
av_log(avctx, AV_LOG_DEBUG, "This video contains B-frames\n");
|
|
if (ctx->has_transp)
|
|
av_log(avctx, AV_LOG_DEBUG, "Transparency mode is enabled\n");
|
|
if (ctx->uses_haar)
|
|
av_log(avctx, AV_LOG_DEBUG, "This video uses Haar transform\n");
|
|
if (ctx->uses_fullpel)
|
|
av_log(avctx, AV_LOG_DEBUG, "This video uses fullpel motion vectors\n");
|
|
ctx->show_indeo4_info = 0;
|
|
}
|
|
|
|
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;
|
|
|
|
ivi_free_buffers(&ctx->planes[0]);
|
|
|
|
if (ctx->mb_vlc.cust_tab.table)
|
|
ff_free_vlc(&ctx->mb_vlc.cust_tab);
|
|
|
|
av_frame_free(&ctx->p_frame);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/**
|
|
* Scan patterns shared between indeo4 and indeo5
|
|
*/
|
|
const uint8_t ff_ivi_vertical_scan_8x8[64] = {
|
|
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
|
|
};
|
|
|
|
const uint8_t ff_ivi_horizontal_scan_8x8[64] = {
|
|
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
|
|
};
|
|
|
|
const uint8_t ff_ivi_direct_scan_4x4[16] = {
|
|
0, 1, 4, 8, 5, 2, 3, 6, 9, 12, 13, 10, 7, 11, 14, 15
|
|
};
|
|
|
|
|
|
/**
|
|
* 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}
|
|
}
|
|
};
|