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authorDiego Biurrun <diego@biurrun.de>2015-03-29 14:44:23 +0200
committerDiego Biurrun <diego@biurrun.de>2015-03-30 17:49:05 +0200
commit23944d29a22a2cd602753b3705f73011c3bf0b18 (patch)
treed176951f06dccc0f97a400e4ecc8186fdc3f1bc2 /libavcodec/ivi.c
parent7d3183d3a4e800ab7a7fa24f49968a1b1bcc0161 (diff)
indeo: Give Indeo4/5 shared code a more consistent name
Diffstat (limited to 'libavcodec/ivi.c')
-rw-r--r--libavcodec/ivi.c1559
1 files changed, 1559 insertions, 0 deletions
diff --git a/libavcodec/ivi.c b/libavcodec/ivi.c
new file mode 100644
index 0000000000..ce1e5aae28
--- /dev/null
+++ b/libavcodec/ivi.c
@@ -0,0 +1,1559 @@
+/*
+ * common functions for Indeo Video Interactive codecs (Indeo4 and Indeo5)
+ *
+ * Copyright (c) 2009 Maxim Poliakovski
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * This file contains functions and data shared by both Indeo4 and
+ * Indeo5 decoders.
+ */
+
+#include <inttypes.h>
+
+#define BITSTREAM_READER_LE
+#include "libavutil/attributes.h"
+#include "libavutil/timer.h"
+#include "avcodec.h"
+#include "get_bits.h"
+#include "internal.h"
+#include "mathops.h"
+#include "ivi.h"
+#include "ivi_dsp.h"
+
+/**
+ * These are 2x8 predefined Huffman codebooks for coding macroblock/block
+ * signals. They are specified using "huffman descriptors" in order to
+ * avoid huge static tables. The decoding tables will be generated at
+ * startup from these descriptors.
+ */
+/** static macroblock huffman tables */
+static const IVIHuffDesc ivi_mb_huff_desc[8] = {
+ {8, {0, 4, 5, 4, 4, 4, 6, 6}},
+ {12, {0, 2, 2, 3, 3, 3, 3, 5, 3, 2, 2, 2}},
+ {12, {0, 2, 3, 4, 3, 3, 3, 3, 4, 3, 2, 2}},
+ {12, {0, 3, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2}},
+ {13, {0, 4, 4, 3, 3, 3, 3, 2, 3, 3, 2, 1, 1}},
+ {9, {0, 4, 4, 4, 4, 3, 3, 3, 2}},
+ {10, {0, 4, 4, 4, 4, 3, 3, 2, 2, 2}},
+ {12, {0, 4, 4, 4, 3, 3, 2, 3, 2, 2, 2, 2}}
+};
+
+/** static block huffman tables */
+static const IVIHuffDesc ivi_blk_huff_desc[8] = {
+ {10, {1, 2, 3, 4, 4, 7, 5, 5, 4, 1}},
+ {11, {2, 3, 4, 4, 4, 7, 5, 4, 3, 3, 2}},
+ {12, {2, 4, 5, 5, 5, 5, 6, 4, 4, 3, 1, 1}},
+ {13, {3, 3, 4, 4, 5, 6, 6, 4, 4, 3, 2, 1, 1}},
+ {11, {3, 4, 4, 5, 5, 5, 6, 5, 4, 2, 2}},
+ {13, {3, 4, 5, 5, 5, 5, 6, 4, 3, 3, 2, 1, 1}},
+ {13, {3, 4, 5, 5, 5, 6, 5, 4, 3, 3, 2, 1, 1}},
+ {9, {3, 4, 4, 5, 5, 5, 6, 5, 5}}
+};
+
+static VLC ivi_mb_vlc_tabs [8]; ///< static macroblock Huffman tables
+static VLC ivi_blk_vlc_tabs[8]; ///< static block Huffman tables
+
+typedef void (*ivi_mc_func) (int16_t *buf, const int16_t *ref_buf,
+ uint32_t pitch, int mc_type);
+typedef void (*ivi_mc_avg_func) (int16_t *buf, const int16_t *ref_buf1,
+ const int16_t *ref_buf2,
+ uint32_t pitch, int mc_type, int mc_type2);
+
+static int ivi_mc(IVIBandDesc *band, ivi_mc_func mc, ivi_mc_avg_func mc_avg,
+ int offs, int mv_x, int mv_y, int mv_x2, int mv_y2,
+ int mc_type, int mc_type2)
+{
+ int ref_offs = offs + mv_y * band->pitch + mv_x;
+ int buf_size = band->pitch * band->aheight;
+ int min_size = band->pitch * (band->blk_size - 1) + band->blk_size;
+ int ref_size = (mc_type > 1) * band->pitch + (mc_type & 1);
+
+ if (mc_type != -1) {
+ if (offs < 0 || ref_offs < 0 || !band->ref_buf)
+ return AVERROR_INVALIDDATA;
+ if (buf_size - min_size < offs)
+ return AVERROR_INVALIDDATA;
+ if (buf_size - min_size - ref_size < ref_offs)
+ return AVERROR_INVALIDDATA;
+ }
+
+ if (mc_type2 == -1) {
+ mc(band->buf + offs, band->ref_buf + ref_offs, band->pitch, mc_type);
+ } else {
+ int ref_offs2 = offs + mv_y2 * band->pitch + mv_x2;
+ int ref_size2 = (mc_type2 > 1) * band->pitch + (mc_type2 & 1);
+ if (offs < 0 || ref_offs2 < 0 || !band->b_ref_buf)
+ return AVERROR_INVALIDDATA;
+ if (buf_size - min_size - ref_size2 < ref_offs2)
+ return AVERROR_INVALIDDATA;
+
+ if (mc_type == -1)
+ mc(band->buf + offs, band->b_ref_buf + ref_offs2,
+ band->pitch, mc_type2);
+ else
+ mc_avg(band->buf + offs, band->ref_buf + ref_offs,
+ band->b_ref_buf + ref_offs2, band->pitch,
+ mc_type, mc_type2);
+ }
+
+ return 0;
+}
+
+/**
+ * Reverse "nbits" bits of the value "val" and return the result
+ * in the least significant bits.
+ */
+static uint16_t inv_bits(uint16_t val, int nbits)
+{
+ uint16_t res;
+
+ if (nbits <= 8) {
+ res = ff_reverse[val] >> (8 - nbits);
+ } else
+ res = ((ff_reverse[val & 0xFF] << 8) +
+ (ff_reverse[val >> 8])) >> (16 - nbits);
+
+ return res;
+}
+
+/*
+ * Generate a huffman codebook from the given descriptor
+ * and convert it into the Libav VLC table.
+ *
+ * @param[in] cb pointer to codebook descriptor
+ * @param[out] vlc where to place the generated VLC table
+ * @param[in] flag flag: 1 - for static or 0 for dynamic tables
+ * @return result code: 0 - OK, -1 = error (invalid codebook descriptor)
+ */
+static int ivi_create_huff_from_desc(const IVIHuffDesc *cb, VLC *vlc, int flag)
+{
+ int pos, i, j, codes_per_row, prefix, not_last_row;
+ uint16_t codewords[256]; /* FIXME: move this temporal storage out? */
+ uint8_t bits[256];
+
+ pos = 0; /* current position = 0 */
+
+ for (i = 0; i < cb->num_rows; i++) {
+ codes_per_row = 1 << cb->xbits[i];
+ not_last_row = (i != cb->num_rows - 1);
+ prefix = ((1 << i) - 1) << (cb->xbits[i] + not_last_row);
+
+ for (j = 0; j < codes_per_row; j++) {
+ if (pos >= 256) /* Some Indeo5 codebooks can have more than 256 */
+ break; /* elements, but only 256 codes are allowed! */
+
+ bits[pos] = i + cb->xbits[i] + not_last_row;
+ if (bits[pos] > IVI_VLC_BITS)
+ return AVERROR_INVALIDDATA; /* invalid descriptor */
+
+ codewords[pos] = inv_bits((prefix | j), bits[pos]);
+ if (!bits[pos])
+ bits[pos] = 1;
+
+ pos++;
+ }//for j
+ }//for i
+
+ /* number of codewords = pos */
+ return init_vlc(vlc, IVI_VLC_BITS, pos, bits, 1, 1, codewords, 2, 2,
+ (flag ? INIT_VLC_USE_NEW_STATIC : 0) | INIT_VLC_LE);
+}
+
+av_cold void ff_ivi_init_static_vlc(void)
+{
+ int i;
+ static VLC_TYPE table_data[8192 * 16][2];
+ static int initialized_vlcs = 0;
+
+ if (initialized_vlcs)
+ return;
+ for (i = 0; i < 8; i++) {
+ ivi_mb_vlc_tabs[i].table = table_data + i * 2 * 8192;
+ ivi_mb_vlc_tabs[i].table_allocated = 8192;
+ ivi_create_huff_from_desc(&ivi_mb_huff_desc[i],
+ &ivi_mb_vlc_tabs[i], 1);
+ ivi_blk_vlc_tabs[i].table = table_data + (i * 2 + 1) * 8192;
+ ivi_blk_vlc_tabs[i].table_allocated = 8192;
+ ivi_create_huff_from_desc(&ivi_blk_huff_desc[i],
+ &ivi_blk_vlc_tabs[i], 1);
+ }
+ initialized_vlcs = 1;
+}
+
+/*
+ * Copy huffman codebook descriptors.
+ *
+ * @param[out] dst ptr to the destination descriptor
+ * @param[in] src ptr to the source descriptor
+ */
+static void ivi_huff_desc_copy(IVIHuffDesc *dst, const IVIHuffDesc *src)
+{
+ dst->num_rows = src->num_rows;
+ memcpy(dst->xbits, src->xbits, src->num_rows);
+}
+
+/*
+ * Compare two huffman codebook descriptors.
+ *
+ * @param[in] desc1 ptr to the 1st descriptor to compare
+ * @param[in] desc2 ptr to the 2nd descriptor to compare
+ * @return comparison result: 0 - equal, 1 - not equal
+ */
+static int ivi_huff_desc_cmp(const IVIHuffDesc *desc1,
+ const IVIHuffDesc *desc2)
+{
+ return desc1->num_rows != desc2->num_rows ||
+ memcmp(desc1->xbits, desc2->xbits, desc1->num_rows);
+}
+
+int ff_ivi_dec_huff_desc(GetBitContext *gb, int desc_coded, int which_tab,
+ IVIHuffTab *huff_tab, AVCodecContext *avctx)
+{
+ int i, result;
+ IVIHuffDesc new_huff;
+
+ if (!desc_coded) {
+ /* select default table */
+ huff_tab->tab = (which_tab) ? &ivi_blk_vlc_tabs[7]
+ : &ivi_mb_vlc_tabs [7];
+ return 0;
+ }
+
+ huff_tab->tab_sel = get_bits(gb, 3);
+ if (huff_tab->tab_sel == 7) {
+ /* custom huffman table (explicitly encoded) */
+ new_huff.num_rows = get_bits(gb, 4);
+ if (!new_huff.num_rows) {
+ av_log(avctx, AV_LOG_ERROR, "Empty custom Huffman table!\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ for (i = 0; i < new_huff.num_rows; i++)
+ new_huff.xbits[i] = get_bits(gb, 4);
+
+ /* Have we got the same custom table? Rebuild if not. */
+ if (ivi_huff_desc_cmp(&new_huff, &huff_tab->cust_desc)) {
+ ivi_huff_desc_copy(&huff_tab->cust_desc, &new_huff);
+
+ if (huff_tab->cust_tab.table)
+ ff_free_vlc(&huff_tab->cust_tab);
+ result = ivi_create_huff_from_desc(&huff_tab->cust_desc,
+ &huff_tab->cust_tab, 0);
+ if (result) {
+ // reset faulty description
+ huff_tab->cust_desc.num_rows = 0;
+ av_log(avctx, AV_LOG_ERROR,
+ "Error while initializing custom vlc table!\n");
+ return result;
+ }
+ }
+ huff_tab->tab = &huff_tab->cust_tab;
+ } else {
+ /* select one of predefined tables */
+ huff_tab->tab = (which_tab) ? &ivi_blk_vlc_tabs[huff_tab->tab_sel]
+ : &ivi_mb_vlc_tabs [huff_tab->tab_sel];
+ }
+
+ return 0;
+}
+
+/*
+ * Free planes, bands and macroblocks buffers.
+ *
+ * @param[in] planes pointer to the array of the plane descriptors
+ */
+static av_cold void ivi_free_buffers(IVIPlaneDesc *planes)
+{
+ int p, b, t;
+
+ for (p = 0; p < 3; p++) {
+ for (b = 0; b < planes[p].num_bands; b++) {
+ av_freep(&planes[p].bands[b].bufs[0]);
+ av_freep(&planes[p].bands[b].bufs[1]);
+ av_freep(&planes[p].bands[b].bufs[2]);
+ av_freep(&planes[p].bands[b].bufs[3]);
+
+ if (planes[p].bands[b].blk_vlc.cust_tab.table)
+ ff_free_vlc(&planes[p].bands[b].blk_vlc.cust_tab);
+ for (t = 0; t < planes[p].bands[b].num_tiles; t++)
+ av_freep(&planes[p].bands[b].tiles[t].mbs);
+ av_freep(&planes[p].bands[b].tiles);
+ }
+ av_freep(&planes[p].bands);
+ planes[p].num_bands = 0;
+ }
+}
+
+av_cold int ff_ivi_init_planes(IVIPlaneDesc *planes, const IVIPicConfig *cfg,
+ int is_indeo4)
+{
+ int p, b;
+ uint32_t b_width, b_height, align_fac, width_aligned,
+ height_aligned, buf_size;
+ IVIBandDesc *band;
+
+ ivi_free_buffers(planes);
+
+ if (cfg->pic_width < 1 || cfg->pic_height < 1 ||
+ cfg->luma_bands < 1 || cfg->chroma_bands < 1)
+ return AVERROR_INVALIDDATA;
+
+ /* fill in the descriptor of the luminance plane */
+ planes[0].width = cfg->pic_width;
+ planes[0].height = cfg->pic_height;
+ planes[0].num_bands = cfg->luma_bands;
+
+ /* fill in the descriptors of the chrominance planes */
+ planes[1].width = planes[2].width = (cfg->pic_width + 3) >> 2;
+ planes[1].height = planes[2].height = (cfg->pic_height + 3) >> 2;
+ planes[1].num_bands = planes[2].num_bands = cfg->chroma_bands;
+
+ for (p = 0; p < 3; p++) {
+ planes[p].bands = av_mallocz(planes[p].num_bands * sizeof(IVIBandDesc));
+ if (!planes[p].bands)
+ return AVERROR(ENOMEM);
+
+ /* select band dimensions: if there is only one band then it
+ * has the full size, if there are several bands each of them
+ * has only half size */
+ b_width = planes[p].num_bands == 1 ? planes[p].width
+ : (planes[p].width + 1) >> 1;
+ b_height = planes[p].num_bands == 1 ? planes[p].height
+ : (planes[p].height + 1) >> 1;
+
+ /* luma band buffers will be aligned on 16x16 (max macroblock size) */
+ /* chroma band buffers will be aligned on 8x8 (max macroblock size) */
+ align_fac = p ? 8 : 16;
+ width_aligned = FFALIGN(b_width , align_fac);
+ height_aligned = FFALIGN(b_height, align_fac);
+ buf_size = width_aligned * height_aligned * sizeof(int16_t);
+
+ for (b = 0; b < planes[p].num_bands; b++) {
+ band = &planes[p].bands[b]; /* select appropriate plane/band */
+ band->plane = p;
+ band->band_num = b;
+ band->width = b_width;
+ band->height = b_height;
+ band->pitch = width_aligned;
+ band->aheight = height_aligned;
+ band->bufs[0] = av_mallocz(buf_size);
+ band->bufs[1] = av_mallocz(buf_size);
+ if (!band->bufs[0] || !band->bufs[1])
+ return AVERROR(ENOMEM);
+
+ /* allocate the 3rd band buffer for scalability mode */
+ if (cfg->luma_bands > 1) {
+ band->bufs[2] = av_mallocz(buf_size);
+ if (!band->bufs[2])
+ return AVERROR(ENOMEM);
+ }
+ if (is_indeo4) {
+ band->bufs[3] = av_mallocz(buf_size);
+ if (!band->bufs[3])
+ return AVERROR(ENOMEM);
+ }
+ /* reset custom vlc */
+ planes[p].bands[0].blk_vlc.cust_desc.num_rows = 0;
+ }
+ }
+
+ return 0;
+}
+
+static int ivi_init_tiles(IVIBandDesc *band, IVITile *ref_tile,
+ int p, int b, int t_height, int t_width)
+{
+ int x, y;
+ IVITile *tile = band->tiles;
+
+ for (y = 0; y < band->height; y += t_height) {
+ for (x = 0; x < band->width; x += t_width) {
+ tile->xpos = x;
+ tile->ypos = y;
+ tile->mb_size = band->mb_size;
+ tile->width = FFMIN(band->width - x, t_width);
+ tile->height = FFMIN(band->height - y, t_height);
+ tile->is_empty = tile->data_size = 0;
+ /* calculate number of macroblocks */
+ tile->num_MBs = IVI_MBs_PER_TILE(tile->width, tile->height,
+ band->mb_size);
+
+ av_freep(&tile->mbs);
+ tile->mbs = av_malloc(tile->num_MBs * sizeof(IVIMbInfo));
+ if (!tile->mbs)
+ return AVERROR(ENOMEM);
+
+ tile->ref_mbs = 0;
+ if (p || b) {
+ if (tile->num_MBs != ref_tile->num_MBs)
+ return AVERROR_INVALIDDATA;
+ tile->ref_mbs = ref_tile->mbs;
+ ref_tile++;
+ }
+ tile++;
+ }
+ }
+
+ return 0;
+}
+
+av_cold int ff_ivi_init_tiles(IVIPlaneDesc *planes,
+ int tile_width, int tile_height)
+{
+ int p, b, x_tiles, y_tiles, t_width, t_height, ret;
+ IVIBandDesc *band;
+
+ for (p = 0; p < 3; p++) {
+ t_width = !p ? tile_width : (tile_width + 3) >> 2;
+ t_height = !p ? tile_height : (tile_height + 3) >> 2;
+
+ if (!p && planes[0].num_bands == 4) {
+ t_width >>= 1;
+ t_height >>= 1;
+ }
+
+ for (b = 0; b < planes[p].num_bands; b++) {
+ band = &planes[p].bands[b];
+ x_tiles = IVI_NUM_TILES(band->width, t_width);
+ y_tiles = IVI_NUM_TILES(band->height, t_height);
+ band->num_tiles = x_tiles * y_tiles;
+
+ av_freep(&band->tiles);
+ 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)
+ av_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;
+ av_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!\n");
+ 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);
+ }
+ }
+
+ 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);
+
+#if IVI4_STREAM_ANALYSER
+ if (ctx->is_indeo4) {
+ if (ctx->is_scalable)
+ av_log(avctx, AV_LOG_ERROR, "This video uses scalability mode!\n");
+ if (ctx->uses_tiling)
+ av_log(avctx, AV_LOG_ERROR, "This video uses local decoding!\n");
+ if (ctx->has_b_frames)
+ av_log(avctx, AV_LOG_ERROR, "This video contains B-frames!\n");
+ if (ctx->has_transp)
+ av_log(avctx, AV_LOG_ERROR, "Transparency mode is enabled!\n");
+ if (ctx->uses_haar)
+ av_log(avctx, AV_LOG_ERROR, "This video uses Haar transform!\n");
+ if (ctx->uses_fullpel)
+ av_log(avctx, AV_LOG_ERROR, "This video uses fullpel motion vectors!\n");
+ }
+#endif
+
+ 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}
+}
+};