Commit | Line | Data |
---|---|---|
2ba45a60 DM |
1 | /* |
2 | * common functions for Indeo Video Interactive codecs (Indeo4 and Indeo5) | |
3 | * | |
4 | * Copyright (c) 2009 Maxim Poliakovski | |
5 | * | |
6 | * This file is part of FFmpeg. | |
7 | * | |
8 | * FFmpeg is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU Lesser General Public | |
10 | * License as published by the Free Software Foundation; either | |
11 | * version 2.1 of the License, or (at your option) any later version. | |
12 | * | |
13 | * FFmpeg is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | * Lesser General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU Lesser General Public | |
19 | * License along with FFmpeg; if not, write to the Free Software | |
20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
21 | */ | |
22 | ||
23 | /** | |
24 | * @file | |
25 | * This file contains functions and data shared by both Indeo4 and | |
26 | * Indeo5 decoders. | |
27 | */ | |
28 | ||
29 | #include <inttypes.h> | |
30 | ||
31 | #define BITSTREAM_READER_LE | |
32 | #include "libavutil/attributes.h" | |
33 | #include "libavutil/timer.h" | |
34 | #include "avcodec.h" | |
35 | #include "get_bits.h" | |
36 | #include "internal.h" | |
37 | #include "mathops.h" | |
38 | #include "ivi_common.h" | |
39 | #include "ivi_dsp.h" | |
40 | ||
41 | /** | |
42 | * These are 2x8 predefined Huffman codebooks for coding macroblock/block | |
43 | * signals. They are specified using "huffman descriptors" in order to | |
44 | * avoid huge static tables. The decoding tables will be generated at | |
45 | * startup from these descriptors. | |
46 | */ | |
47 | /** static macroblock huffman tables */ | |
48 | static const IVIHuffDesc ivi_mb_huff_desc[8] = { | |
49 | {8, {0, 4, 5, 4, 4, 4, 6, 6}}, | |
50 | {12, {0, 2, 2, 3, 3, 3, 3, 5, 3, 2, 2, 2}}, | |
51 | {12, {0, 2, 3, 4, 3, 3, 3, 3, 4, 3, 2, 2}}, | |
52 | {12, {0, 3, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2}}, | |
53 | {13, {0, 4, 4, 3, 3, 3, 3, 2, 3, 3, 2, 1, 1}}, | |
54 | {9, {0, 4, 4, 4, 4, 3, 3, 3, 2}}, | |
55 | {10, {0, 4, 4, 4, 4, 3, 3, 2, 2, 2}}, | |
56 | {12, {0, 4, 4, 4, 3, 3, 2, 3, 2, 2, 2, 2}} | |
57 | }; | |
58 | ||
59 | /** static block huffman tables */ | |
60 | static const IVIHuffDesc ivi_blk_huff_desc[8] = { | |
61 | {10, {1, 2, 3, 4, 4, 7, 5, 5, 4, 1}}, | |
62 | {11, {2, 3, 4, 4, 4, 7, 5, 4, 3, 3, 2}}, | |
63 | {12, {2, 4, 5, 5, 5, 5, 6, 4, 4, 3, 1, 1}}, | |
64 | {13, {3, 3, 4, 4, 5, 6, 6, 4, 4, 3, 2, 1, 1}}, | |
65 | {11, {3, 4, 4, 5, 5, 5, 6, 5, 4, 2, 2}}, | |
66 | {13, {3, 4, 5, 5, 5, 5, 6, 4, 3, 3, 2, 1, 1}}, | |
67 | {13, {3, 4, 5, 5, 5, 6, 5, 4, 3, 3, 2, 1, 1}}, | |
68 | {9, {3, 4, 4, 5, 5, 5, 6, 5, 5}} | |
69 | }; | |
70 | ||
71 | static VLC ivi_mb_vlc_tabs [8]; ///< static macroblock Huffman tables | |
72 | static VLC ivi_blk_vlc_tabs[8]; ///< static block Huffman tables | |
73 | ||
74 | typedef void (*ivi_mc_func) (int16_t *buf, const int16_t *ref_buf, | |
75 | uint32_t pitch, int mc_type); | |
76 | typedef void (*ivi_mc_avg_func) (int16_t *buf, const int16_t *ref_buf1, | |
77 | const int16_t *ref_buf2, | |
78 | uint32_t pitch, int mc_type, int mc_type2); | |
79 | ||
80 | static int ivi_mc(IVIBandDesc *band, ivi_mc_func mc, ivi_mc_avg_func mc_avg, | |
81 | int offs, int mv_x, int mv_y, int mv_x2, int mv_y2, | |
82 | int mc_type, int mc_type2) | |
83 | { | |
84 | int ref_offs = offs + mv_y * band->pitch + mv_x; | |
85 | int buf_size = band->pitch * band->aheight; | |
86 | int min_size = band->pitch * (band->blk_size - 1) + band->blk_size; | |
87 | int ref_size = (mc_type > 1) * band->pitch + (mc_type & 1); | |
88 | ||
89 | if (mc_type != -1) { | |
90 | av_assert0(offs >= 0 && ref_offs >= 0 && band->ref_buf); | |
91 | av_assert0(buf_size - min_size >= offs); | |
92 | av_assert0(buf_size - min_size - ref_size >= ref_offs); | |
93 | } | |
94 | ||
95 | if (mc_type2 == -1) { | |
96 | mc(band->buf + offs, band->ref_buf + ref_offs, band->pitch, mc_type); | |
97 | } else { | |
98 | int ref_offs2 = offs + mv_y2 * band->pitch + mv_x2; | |
99 | int ref_size2 = (mc_type2 > 1) * band->pitch + (mc_type2 & 1); | |
100 | if (offs < 0 || ref_offs2 < 0 || !band->b_ref_buf) | |
101 | return AVERROR_INVALIDDATA; | |
102 | if (buf_size - min_size - ref_size2 < ref_offs2) | |
103 | return AVERROR_INVALIDDATA; | |
104 | ||
105 | if (mc_type == -1) | |
106 | mc(band->buf + offs, band->b_ref_buf + ref_offs2, | |
107 | band->pitch, mc_type2); | |
108 | else | |
109 | mc_avg(band->buf + offs, band->ref_buf + ref_offs, | |
110 | band->b_ref_buf + ref_offs2, band->pitch, | |
111 | mc_type, mc_type2); | |
112 | } | |
113 | ||
114 | return 0; | |
115 | } | |
116 | ||
117 | /** | |
118 | * Reverse "nbits" bits of the value "val" and return the result | |
119 | * in the least significant bits. | |
120 | */ | |
121 | static uint16_t inv_bits(uint16_t val, int nbits) | |
122 | { | |
123 | uint16_t res; | |
124 | ||
125 | if (nbits <= 8) { | |
126 | res = ff_reverse[val] >> (8 - nbits); | |
127 | } else | |
128 | res = ((ff_reverse[val & 0xFF] << 8) + | |
129 | (ff_reverse[val >> 8])) >> (16 - nbits); | |
130 | ||
131 | return res; | |
132 | } | |
133 | ||
134 | /* | |
135 | * Generate a huffman codebook from the given descriptor | |
136 | * and convert it into the FFmpeg VLC table. | |
137 | * | |
138 | * @param[in] cb pointer to codebook descriptor | |
139 | * @param[out] vlc where to place the generated VLC table | |
140 | * @param[in] flag flag: 1 - for static or 0 for dynamic tables | |
141 | * @return result code: 0 - OK, -1 = error (invalid codebook descriptor) | |
142 | */ | |
143 | static int ivi_create_huff_from_desc(const IVIHuffDesc *cb, VLC *vlc, int flag) | |
144 | { | |
145 | int pos, i, j, codes_per_row, prefix, not_last_row; | |
146 | uint16_t codewords[256]; /* FIXME: move this temporal storage out? */ | |
147 | uint8_t bits[256]; | |
148 | ||
149 | pos = 0; /* current position = 0 */ | |
150 | ||
151 | for (i = 0; i < cb->num_rows; i++) { | |
152 | codes_per_row = 1 << cb->xbits[i]; | |
153 | not_last_row = (i != cb->num_rows - 1); | |
154 | prefix = ((1 << i) - 1) << (cb->xbits[i] + not_last_row); | |
155 | ||
156 | for (j = 0; j < codes_per_row; j++) { | |
157 | if (pos >= 256) /* Some Indeo5 codebooks can have more than 256 */ | |
158 | break; /* elements, but only 256 codes are allowed! */ | |
159 | ||
160 | bits[pos] = i + cb->xbits[i] + not_last_row; | |
161 | if (bits[pos] > IVI_VLC_BITS) | |
162 | return AVERROR_INVALIDDATA; /* invalid descriptor */ | |
163 | ||
164 | codewords[pos] = inv_bits((prefix | j), bits[pos]); | |
165 | if (!bits[pos]) | |
166 | bits[pos] = 1; | |
167 | ||
168 | pos++; | |
169 | }//for j | |
170 | }//for i | |
171 | ||
172 | /* number of codewords = pos */ | |
173 | return init_vlc(vlc, IVI_VLC_BITS, pos, bits, 1, 1, codewords, 2, 2, | |
174 | (flag ? INIT_VLC_USE_NEW_STATIC : 0) | INIT_VLC_LE); | |
175 | } | |
176 | ||
177 | av_cold void ff_ivi_init_static_vlc(void) | |
178 | { | |
179 | int i; | |
180 | static VLC_TYPE table_data[8192 * 16][2]; | |
181 | static int initialized_vlcs = 0; | |
182 | ||
183 | if (initialized_vlcs) | |
184 | return; | |
185 | for (i = 0; i < 8; i++) { | |
186 | ivi_mb_vlc_tabs[i].table = table_data + i * 2 * 8192; | |
187 | ivi_mb_vlc_tabs[i].table_allocated = 8192; | |
188 | ivi_create_huff_from_desc(&ivi_mb_huff_desc[i], | |
189 | &ivi_mb_vlc_tabs[i], 1); | |
190 | ivi_blk_vlc_tabs[i].table = table_data + (i * 2 + 1) * 8192; | |
191 | ivi_blk_vlc_tabs[i].table_allocated = 8192; | |
192 | ivi_create_huff_from_desc(&ivi_blk_huff_desc[i], | |
193 | &ivi_blk_vlc_tabs[i], 1); | |
194 | } | |
195 | initialized_vlcs = 1; | |
196 | } | |
197 | ||
198 | /* | |
199 | * Copy huffman codebook descriptors. | |
200 | * | |
201 | * @param[out] dst ptr to the destination descriptor | |
202 | * @param[in] src ptr to the source descriptor | |
203 | */ | |
204 | static void ivi_huff_desc_copy(IVIHuffDesc *dst, const IVIHuffDesc *src) | |
205 | { | |
206 | dst->num_rows = src->num_rows; | |
207 | memcpy(dst->xbits, src->xbits, src->num_rows); | |
208 | } | |
209 | ||
210 | /* | |
211 | * Compare two huffman codebook descriptors. | |
212 | * | |
213 | * @param[in] desc1 ptr to the 1st descriptor to compare | |
214 | * @param[in] desc2 ptr to the 2nd descriptor to compare | |
215 | * @return comparison result: 0 - equal, 1 - not equal | |
216 | */ | |
217 | static int ivi_huff_desc_cmp(const IVIHuffDesc *desc1, | |
218 | const IVIHuffDesc *desc2) | |
219 | { | |
220 | return desc1->num_rows != desc2->num_rows || | |
221 | memcmp(desc1->xbits, desc2->xbits, desc1->num_rows); | |
222 | } | |
223 | ||
224 | int ff_ivi_dec_huff_desc(GetBitContext *gb, int desc_coded, int which_tab, | |
225 | IVIHuffTab *huff_tab, AVCodecContext *avctx) | |
226 | { | |
227 | int i, result; | |
228 | IVIHuffDesc new_huff; | |
229 | ||
230 | if (!desc_coded) { | |
231 | /* select default table */ | |
232 | huff_tab->tab = (which_tab) ? &ivi_blk_vlc_tabs[7] | |
233 | : &ivi_mb_vlc_tabs [7]; | |
234 | return 0; | |
235 | } | |
236 | ||
237 | huff_tab->tab_sel = get_bits(gb, 3); | |
238 | if (huff_tab->tab_sel == 7) { | |
239 | /* custom huffman table (explicitly encoded) */ | |
240 | new_huff.num_rows = get_bits(gb, 4); | |
241 | if (!new_huff.num_rows) { | |
242 | av_log(avctx, AV_LOG_ERROR, "Empty custom Huffman table!\n"); | |
243 | return AVERROR_INVALIDDATA; | |
244 | } | |
245 | ||
246 | for (i = 0; i < new_huff.num_rows; i++) | |
247 | new_huff.xbits[i] = get_bits(gb, 4); | |
248 | ||
249 | /* Have we got the same custom table? Rebuild if not. */ | |
250 | if (ivi_huff_desc_cmp(&new_huff, &huff_tab->cust_desc) || !huff_tab->cust_tab.table) { | |
251 | ivi_huff_desc_copy(&huff_tab->cust_desc, &new_huff); | |
252 | ||
253 | if (huff_tab->cust_tab.table) | |
254 | ff_free_vlc(&huff_tab->cust_tab); | |
255 | result = ivi_create_huff_from_desc(&huff_tab->cust_desc, | |
256 | &huff_tab->cust_tab, 0); | |
257 | if (result) { | |
258 | // reset faulty description | |
259 | huff_tab->cust_desc.num_rows = 0; | |
260 | av_log(avctx, AV_LOG_ERROR, | |
261 | "Error while initializing custom vlc table!\n"); | |
262 | return result; | |
263 | } | |
264 | } | |
265 | huff_tab->tab = &huff_tab->cust_tab; | |
266 | } else { | |
267 | /* select one of predefined tables */ | |
268 | huff_tab->tab = (which_tab) ? &ivi_blk_vlc_tabs[huff_tab->tab_sel] | |
269 | : &ivi_mb_vlc_tabs [huff_tab->tab_sel]; | |
270 | } | |
271 | ||
272 | return 0; | |
273 | } | |
274 | ||
275 | /* | |
276 | * Free planes, bands and macroblocks buffers. | |
277 | * | |
278 | * @param[in] planes pointer to the array of the plane descriptors | |
279 | */ | |
280 | static av_cold void ivi_free_buffers(IVIPlaneDesc *planes) | |
281 | { | |
282 | int p, b, t; | |
283 | ||
284 | for (p = 0; p < 3; p++) { | |
285 | if (planes[p].bands) | |
286 | for (b = 0; b < planes[p].num_bands; b++) { | |
287 | av_freep(&planes[p].bands[b].bufs[0]); | |
288 | av_freep(&planes[p].bands[b].bufs[1]); | |
289 | av_freep(&planes[p].bands[b].bufs[2]); | |
290 | av_freep(&planes[p].bands[b].bufs[3]); | |
291 | ||
292 | if (planes[p].bands[b].blk_vlc.cust_tab.table) | |
293 | ff_free_vlc(&planes[p].bands[b].blk_vlc.cust_tab); | |
294 | for (t = 0; t < planes[p].bands[b].num_tiles; t++) | |
295 | av_freep(&planes[p].bands[b].tiles[t].mbs); | |
296 | av_freep(&planes[p].bands[b].tiles); | |
297 | } | |
298 | av_freep(&planes[p].bands); | |
299 | planes[p].num_bands = 0; | |
300 | } | |
301 | } | |
302 | ||
303 | av_cold int ff_ivi_init_planes(IVIPlaneDesc *planes, const IVIPicConfig *cfg, | |
304 | int is_indeo4) | |
305 | { | |
306 | int p, b; | |
307 | uint32_t b_width, b_height, align_fac, width_aligned, | |
308 | height_aligned, buf_size; | |
309 | IVIBandDesc *band; | |
310 | ||
311 | ivi_free_buffers(planes); | |
312 | ||
313 | if (cfg->pic_width < 1 || cfg->pic_height < 1 || | |
314 | cfg->luma_bands < 1 || cfg->chroma_bands < 1) | |
315 | return AVERROR_INVALIDDATA; | |
316 | ||
317 | /* fill in the descriptor of the luminance plane */ | |
318 | planes[0].width = cfg->pic_width; | |
319 | planes[0].height = cfg->pic_height; | |
320 | planes[0].num_bands = cfg->luma_bands; | |
321 | ||
322 | /* fill in the descriptors of the chrominance planes */ | |
323 | planes[1].width = planes[2].width = (cfg->pic_width + 3) >> 2; | |
324 | planes[1].height = planes[2].height = (cfg->pic_height + 3) >> 2; | |
325 | planes[1].num_bands = planes[2].num_bands = cfg->chroma_bands; | |
326 | ||
327 | for (p = 0; p < 3; p++) { | |
328 | planes[p].bands = av_mallocz_array(planes[p].num_bands, sizeof(IVIBandDesc)); | |
329 | if (!planes[p].bands) | |
330 | return AVERROR(ENOMEM); | |
331 | ||
332 | /* select band dimensions: if there is only one band then it | |
333 | * has the full size, if there are several bands each of them | |
334 | * has only half size */ | |
335 | b_width = planes[p].num_bands == 1 ? planes[p].width | |
336 | : (planes[p].width + 1) >> 1; | |
337 | b_height = planes[p].num_bands == 1 ? planes[p].height | |
338 | : (planes[p].height + 1) >> 1; | |
339 | ||
340 | /* luma band buffers will be aligned on 16x16 (max macroblock size) */ | |
341 | /* chroma band buffers will be aligned on 8x8 (max macroblock size) */ | |
342 | align_fac = p ? 8 : 16; | |
343 | width_aligned = FFALIGN(b_width , align_fac); | |
344 | height_aligned = FFALIGN(b_height, align_fac); | |
345 | buf_size = width_aligned * height_aligned * sizeof(int16_t); | |
346 | ||
347 | for (b = 0; b < planes[p].num_bands; b++) { | |
348 | band = &planes[p].bands[b]; /* select appropriate plane/band */ | |
349 | band->plane = p; | |
350 | band->band_num = b; | |
351 | band->width = b_width; | |
352 | band->height = b_height; | |
353 | band->pitch = width_aligned; | |
354 | band->aheight = height_aligned; | |
355 | band->bufs[0] = av_mallocz(buf_size); | |
356 | band->bufs[1] = av_mallocz(buf_size); | |
357 | band->bufsize = buf_size/2; | |
358 | if (!band->bufs[0] || !band->bufs[1]) | |
359 | return AVERROR(ENOMEM); | |
360 | ||
361 | /* allocate the 3rd band buffer for scalability mode */ | |
362 | if (cfg->luma_bands > 1) { | |
363 | band->bufs[2] = av_mallocz(buf_size); | |
364 | if (!band->bufs[2]) | |
365 | return AVERROR(ENOMEM); | |
366 | } | |
367 | if (is_indeo4) { | |
368 | band->bufs[3] = av_mallocz(buf_size); | |
369 | if (!band->bufs[3]) | |
370 | return AVERROR(ENOMEM); | |
371 | } | |
372 | /* reset custom vlc */ | |
373 | planes[p].bands[0].blk_vlc.cust_desc.num_rows = 0; | |
374 | } | |
375 | } | |
376 | ||
377 | return 0; | |
378 | } | |
379 | ||
380 | static int ivi_init_tiles(IVIBandDesc *band, IVITile *ref_tile, | |
381 | int p, int b, int t_height, int t_width) | |
382 | { | |
383 | int x, y; | |
384 | IVITile *tile = band->tiles; | |
385 | ||
386 | for (y = 0; y < band->height; y += t_height) { | |
387 | for (x = 0; x < band->width; x += t_width) { | |
388 | tile->xpos = x; | |
389 | tile->ypos = y; | |
390 | tile->mb_size = band->mb_size; | |
391 | tile->width = FFMIN(band->width - x, t_width); | |
392 | tile->height = FFMIN(band->height - y, t_height); | |
393 | tile->is_empty = tile->data_size = 0; | |
394 | /* calculate number of macroblocks */ | |
395 | tile->num_MBs = IVI_MBs_PER_TILE(tile->width, tile->height, | |
396 | band->mb_size); | |
397 | ||
398 | av_freep(&tile->mbs); | |
399 | tile->mbs = av_mallocz_array(tile->num_MBs, sizeof(IVIMbInfo)); | |
400 | if (!tile->mbs) | |
401 | return AVERROR(ENOMEM); | |
402 | ||
403 | tile->ref_mbs = 0; | |
404 | if (p || b) { | |
405 | if (tile->num_MBs != ref_tile->num_MBs) { | |
406 | av_log(NULL, AV_LOG_DEBUG, "ref_tile mismatch\n"); | |
407 | return AVERROR_INVALIDDATA; | |
408 | } | |
409 | tile->ref_mbs = ref_tile->mbs; | |
410 | ref_tile++; | |
411 | } | |
412 | tile++; | |
413 | } | |
414 | } | |
415 | ||
416 | return 0; | |
417 | } | |
418 | ||
419 | av_cold int ff_ivi_init_tiles(IVIPlaneDesc *planes, | |
420 | int tile_width, int tile_height) | |
421 | { | |
422 | int p, b, x_tiles, y_tiles, t_width, t_height, ret; | |
423 | IVIBandDesc *band; | |
424 | ||
425 | for (p = 0; p < 3; p++) { | |
426 | t_width = !p ? tile_width : (tile_width + 3) >> 2; | |
427 | t_height = !p ? tile_height : (tile_height + 3) >> 2; | |
428 | ||
429 | if (!p && planes[0].num_bands == 4) { | |
430 | t_width >>= 1; | |
431 | t_height >>= 1; | |
432 | } | |
433 | if(t_width<=0 || t_height<=0) | |
434 | return AVERROR(EINVAL); | |
435 | ||
436 | for (b = 0; b < planes[p].num_bands; b++) { | |
437 | band = &planes[p].bands[b]; | |
438 | x_tiles = IVI_NUM_TILES(band->width, t_width); | |
439 | y_tiles = IVI_NUM_TILES(band->height, t_height); | |
440 | band->num_tiles = x_tiles * y_tiles; | |
441 | ||
442 | av_freep(&band->tiles); | |
443 | band->tiles = av_mallocz_array(band->num_tiles, sizeof(IVITile)); | |
444 | if (!band->tiles) | |
445 | return AVERROR(ENOMEM); | |
446 | ||
447 | /* use the first luma band as reference for motion vectors | |
448 | * and quant */ | |
449 | ret = ivi_init_tiles(band, planes[0].bands[0].tiles, | |
450 | p, b, t_height, t_width); | |
451 | if (ret < 0) | |
452 | return ret; | |
453 | } | |
454 | } | |
455 | ||
456 | return 0; | |
457 | } | |
458 | ||
459 | /* | |
460 | * Decode size of the tile data. | |
461 | * The size is stored as a variable-length field having the following format: | |
462 | * if (tile_data_size < 255) than this field is only one byte long | |
463 | * if (tile_data_size >= 255) than this field four is byte long: 0xFF X1 X2 X3 | |
464 | * where X1-X3 is size of the tile data | |
465 | * | |
466 | * @param[in,out] gb the GetBit context | |
467 | * @return size of the tile data in bytes | |
468 | */ | |
469 | static int ivi_dec_tile_data_size(GetBitContext *gb) | |
470 | { | |
471 | int len; | |
472 | ||
473 | len = 0; | |
474 | if (get_bits1(gb)) { | |
475 | len = get_bits(gb, 8); | |
476 | if (len == 255) | |
477 | len = get_bits_long(gb, 24); | |
478 | } | |
479 | ||
480 | /* align the bitstream reader on the byte boundary */ | |
481 | align_get_bits(gb); | |
482 | ||
483 | return len; | |
484 | } | |
485 | ||
486 | static int ivi_dc_transform(IVIBandDesc *band, int *prev_dc, int buf_offs, | |
487 | int blk_size) | |
488 | { | |
489 | int buf_size = band->pitch * band->aheight - buf_offs; | |
490 | int min_size = (blk_size - 1) * band->pitch + blk_size; | |
491 | ||
492 | if (min_size > buf_size) | |
493 | return AVERROR_INVALIDDATA; | |
494 | ||
495 | band->dc_transform(prev_dc, band->buf + buf_offs, | |
496 | band->pitch, blk_size); | |
497 | ||
498 | return 0; | |
499 | } | |
500 | ||
501 | static int ivi_decode_coded_blocks(GetBitContext *gb, IVIBandDesc *band, | |
502 | ivi_mc_func mc, ivi_mc_avg_func mc_avg, | |
503 | int mv_x, int mv_y, | |
504 | int mv_x2, int mv_y2, | |
505 | int *prev_dc, int is_intra, | |
506 | int mc_type, int mc_type2, | |
507 | uint32_t quant, int offs, | |
508 | AVCodecContext *avctx) | |
509 | { | |
510 | const uint16_t *base_tab = is_intra ? band->intra_base : band->inter_base; | |
511 | RVMapDesc *rvmap = band->rv_map; | |
512 | uint8_t col_flags[8]; | |
513 | int32_t trvec[64]; | |
514 | uint32_t sym = 0, lo, hi, q; | |
515 | int pos, run, val; | |
516 | int blk_size = band->blk_size; | |
517 | int num_coeffs = blk_size * blk_size; | |
518 | int col_mask = blk_size - 1; | |
519 | int scan_pos = -1; | |
520 | int min_size = band->pitch * (band->transform_size - 1) + | |
521 | band->transform_size; | |
522 | int buf_size = band->pitch * band->aheight - offs; | |
523 | ||
524 | if (min_size > buf_size) | |
525 | return AVERROR_INVALIDDATA; | |
526 | ||
527 | if (!band->scan) { | |
528 | av_log(avctx, AV_LOG_ERROR, "Scan pattern is not set.\n"); | |
529 | return AVERROR_INVALIDDATA; | |
530 | } | |
531 | ||
532 | /* zero transform vector */ | |
533 | memset(trvec, 0, num_coeffs * sizeof(trvec[0])); | |
534 | /* zero column flags */ | |
535 | memset(col_flags, 0, sizeof(col_flags)); | |
536 | while (scan_pos <= num_coeffs) { | |
537 | sym = get_vlc2(gb, band->blk_vlc.tab->table, | |
538 | IVI_VLC_BITS, 1); | |
539 | if (sym == rvmap->eob_sym) | |
540 | break; /* End of block */ | |
541 | ||
542 | /* Escape - run/val explicitly coded using 3 vlc codes */ | |
543 | if (sym == rvmap->esc_sym) { | |
544 | run = get_vlc2(gb, band->blk_vlc.tab->table, IVI_VLC_BITS, 1) + 1; | |
545 | lo = get_vlc2(gb, band->blk_vlc.tab->table, IVI_VLC_BITS, 1); | |
546 | hi = get_vlc2(gb, band->blk_vlc.tab->table, IVI_VLC_BITS, 1); | |
547 | /* merge them and convert into signed val */ | |
548 | val = IVI_TOSIGNED((hi << 6) | lo); | |
549 | } else { | |
550 | if (sym >= 256U) { | |
551 | av_log(avctx, AV_LOG_ERROR, "Invalid sym encountered: %"PRIu32".\n", sym); | |
552 | return AVERROR_INVALIDDATA; | |
553 | } | |
554 | run = rvmap->runtab[sym]; | |
555 | val = rvmap->valtab[sym]; | |
556 | } | |
557 | ||
558 | /* de-zigzag and dequantize */ | |
559 | scan_pos += run; | |
560 | if (scan_pos >= num_coeffs || scan_pos < 0) | |
561 | break; | |
562 | pos = band->scan[scan_pos]; | |
563 | ||
564 | if (!val) | |
565 | av_dlog(avctx, "Val = 0 encountered!\n"); | |
566 | ||
567 | q = (base_tab[pos] * quant) >> 9; | |
568 | if (q > 1) | |
569 | val = val * q + FFSIGN(val) * (((q ^ 1) - 1) >> 1); | |
570 | trvec[pos] = val; | |
571 | /* track columns containing non-zero coeffs */ | |
572 | col_flags[pos & col_mask] |= !!val; | |
573 | } | |
574 | ||
575 | if (scan_pos < 0 || scan_pos >= num_coeffs && sym != rvmap->eob_sym) | |
576 | return AVERROR_INVALIDDATA; /* corrupt block data */ | |
577 | ||
578 | /* undoing DC coeff prediction for intra-blocks */ | |
579 | if (is_intra && band->is_2d_trans) { | |
580 | *prev_dc += trvec[0]; | |
581 | trvec[0] = *prev_dc; | |
582 | col_flags[0] |= !!*prev_dc; | |
583 | } | |
584 | ||
585 | if(band->transform_size > band->blk_size){ | |
586 | av_log(NULL, AV_LOG_ERROR, "Too large transform\n"); | |
587 | return AVERROR_INVALIDDATA; | |
588 | } | |
589 | ||
590 | /* apply inverse transform */ | |
591 | band->inv_transform(trvec, band->buf + offs, | |
592 | band->pitch, col_flags); | |
593 | ||
594 | /* apply motion compensation */ | |
595 | if (!is_intra) | |
596 | return ivi_mc(band, mc, mc_avg, offs, mv_x, mv_y, mv_x2, mv_y2, | |
597 | mc_type, mc_type2); | |
598 | ||
599 | return 0; | |
600 | } | |
601 | /* | |
602 | * Decode block data: | |
603 | * extract huffman-coded transform coefficients from the bitstream, | |
604 | * dequantize them, apply inverse transform and motion compensation | |
605 | * in order to reconstruct the picture. | |
606 | * | |
607 | * @param[in,out] gb the GetBit context | |
608 | * @param[in] band pointer to the band descriptor | |
609 | * @param[in] tile pointer to the tile descriptor | |
610 | * @return result code: 0 - OK, -1 = error (corrupted blocks data) | |
611 | */ | |
612 | static int ivi_decode_blocks(GetBitContext *gb, IVIBandDesc *band, | |
613 | IVITile *tile, AVCodecContext *avctx) | |
614 | { | |
615 | int mbn, blk, num_blocks, blk_size, ret, is_intra; | |
616 | int mc_type = 0, mc_type2 = -1; | |
617 | int mv_x = 0, mv_y = 0, mv_x2 = 0, mv_y2 = 0; | |
618 | int32_t prev_dc; | |
619 | uint32_t cbp, quant, buf_offs; | |
620 | IVIMbInfo *mb; | |
621 | ivi_mc_func mc_with_delta_func, mc_no_delta_func; | |
622 | ivi_mc_avg_func mc_avg_with_delta_func, mc_avg_no_delta_func; | |
623 | const uint8_t *scale_tab; | |
624 | ||
625 | /* init intra prediction for the DC coefficient */ | |
626 | prev_dc = 0; | |
627 | blk_size = band->blk_size; | |
628 | /* number of blocks per mb */ | |
629 | num_blocks = (band->mb_size != blk_size) ? 4 : 1; | |
630 | if (blk_size == 8) { | |
631 | mc_with_delta_func = ff_ivi_mc_8x8_delta; | |
632 | mc_no_delta_func = ff_ivi_mc_8x8_no_delta; | |
633 | mc_avg_with_delta_func = ff_ivi_mc_avg_8x8_delta; | |
634 | mc_avg_no_delta_func = ff_ivi_mc_avg_8x8_no_delta; | |
635 | } else { | |
636 | mc_with_delta_func = ff_ivi_mc_4x4_delta; | |
637 | mc_no_delta_func = ff_ivi_mc_4x4_no_delta; | |
638 | mc_avg_with_delta_func = ff_ivi_mc_avg_4x4_delta; | |
639 | mc_avg_no_delta_func = ff_ivi_mc_avg_4x4_no_delta; | |
640 | } | |
641 | ||
642 | for (mbn = 0, mb = tile->mbs; mbn < tile->num_MBs; mb++, mbn++) { | |
643 | is_intra = !mb->type; | |
644 | cbp = mb->cbp; | |
645 | buf_offs = mb->buf_offs; | |
646 | ||
647 | quant = band->glob_quant + mb->q_delta; | |
648 | if (avctx->codec_id == AV_CODEC_ID_INDEO4) | |
649 | quant = av_clip(quant, 0, 31); | |
650 | else | |
651 | quant = av_clip(quant, 0, 23); | |
652 | ||
653 | scale_tab = is_intra ? band->intra_scale : band->inter_scale; | |
654 | if (scale_tab) | |
655 | quant = scale_tab[quant]; | |
656 | ||
657 | if (!is_intra) { | |
658 | mv_x = mb->mv_x; | |
659 | mv_y = mb->mv_y; | |
660 | mv_x2 = mb->b_mv_x; | |
661 | mv_y2 = mb->b_mv_y; | |
662 | if (band->is_halfpel) { | |
663 | mc_type = ((mv_y & 1) << 1) | (mv_x & 1); | |
664 | mc_type2 = ((mv_y2 & 1) << 1) | (mv_x2 & 1); | |
665 | mv_x >>= 1; | |
666 | mv_y >>= 1; | |
667 | mv_x2 >>= 1; | |
668 | mv_y2 >>= 1; /* convert halfpel vectors into fullpel ones */ | |
669 | } | |
670 | if (mb->type == 2) | |
671 | mc_type = -1; | |
672 | if (mb->type != 2 && mb->type != 3) | |
673 | mc_type2 = -1; | |
674 | if (mb->type) { | |
675 | int dmv_x, dmv_y, cx, cy; | |
676 | ||
677 | dmv_x = mb->mv_x >> band->is_halfpel; | |
678 | dmv_y = mb->mv_y >> band->is_halfpel; | |
679 | cx = mb->mv_x & band->is_halfpel; | |
680 | cy = mb->mv_y & band->is_halfpel; | |
681 | ||
682 | if (mb->xpos + dmv_x < 0 || | |
683 | mb->xpos + dmv_x + band->mb_size + cx > band->pitch || | |
684 | mb->ypos + dmv_y < 0 || | |
685 | mb->ypos + dmv_y + band->mb_size + cy > band->aheight) { | |
686 | return AVERROR_INVALIDDATA; | |
687 | } | |
688 | } | |
689 | if (mb->type == 2 || mb->type == 3) { | |
690 | int dmv_x, dmv_y, cx, cy; | |
691 | ||
692 | dmv_x = mb->b_mv_x >> band->is_halfpel; | |
693 | dmv_y = mb->b_mv_y >> band->is_halfpel; | |
694 | cx = mb->b_mv_x & band->is_halfpel; | |
695 | cy = mb->b_mv_y & band->is_halfpel; | |
696 | ||
697 | if (mb->xpos + dmv_x < 0 || | |
698 | mb->xpos + dmv_x + band->mb_size + cx > band->pitch || | |
699 | mb->ypos + dmv_y < 0 || | |
700 | mb->ypos + dmv_y + band->mb_size + cy > band->aheight) { | |
701 | return AVERROR_INVALIDDATA; | |
702 | } | |
703 | } | |
704 | } | |
705 | ||
706 | for (blk = 0; blk < num_blocks; blk++) { | |
707 | /* adjust block position in the buffer according to its number */ | |
708 | if (blk & 1) { | |
709 | buf_offs += blk_size; | |
710 | } else if (blk == 2) { | |
711 | buf_offs -= blk_size; | |
712 | buf_offs += blk_size * band->pitch; | |
713 | } | |
714 | ||
715 | if (cbp & 1) { /* block coded ? */ | |
716 | ret = ivi_decode_coded_blocks(gb, band, mc_with_delta_func, | |
717 | mc_avg_with_delta_func, | |
718 | mv_x, mv_y, mv_x2, mv_y2, | |
719 | &prev_dc, is_intra, | |
720 | mc_type, mc_type2, quant, | |
721 | buf_offs, avctx); | |
722 | if (ret < 0) | |
723 | return ret; | |
724 | } else { | |
725 | /* block not coded */ | |
726 | /* for intra blocks apply the dc slant transform */ | |
727 | /* for inter - perform the motion compensation without delta */ | |
728 | if (is_intra) { | |
729 | ret = ivi_dc_transform(band, &prev_dc, buf_offs, blk_size); | |
730 | if (ret < 0) | |
731 | return ret; | |
732 | } else { | |
733 | ret = ivi_mc(band, mc_no_delta_func, mc_avg_no_delta_func, | |
734 | buf_offs, mv_x, mv_y, mv_x2, mv_y2, | |
735 | mc_type, mc_type2); | |
736 | if (ret < 0) | |
737 | return ret; | |
738 | } | |
739 | } | |
740 | ||
741 | cbp >>= 1; | |
742 | }// for blk | |
743 | }// for mbn | |
744 | ||
745 | align_get_bits(gb); | |
746 | ||
747 | return 0; | |
748 | } | |
749 | ||
750 | /** | |
751 | * Handle empty tiles by performing data copying and motion | |
752 | * compensation respectively. | |
753 | * | |
754 | * @param[in] avctx ptr to the AVCodecContext | |
755 | * @param[in] band pointer to the band descriptor | |
756 | * @param[in] tile pointer to the tile descriptor | |
757 | * @param[in] mv_scale scaling factor for motion vectors | |
758 | */ | |
759 | static int ivi_process_empty_tile(AVCodecContext *avctx, IVIBandDesc *band, | |
760 | IVITile *tile, int32_t mv_scale) | |
761 | { | |
762 | int x, y, need_mc, mbn, blk, num_blocks, mv_x, mv_y, mc_type; | |
763 | int offs, mb_offset, row_offset, ret; | |
764 | IVIMbInfo *mb, *ref_mb; | |
765 | const int16_t *src; | |
766 | int16_t *dst; | |
767 | ivi_mc_func mc_no_delta_func; | |
768 | ||
769 | if (tile->num_MBs != IVI_MBs_PER_TILE(tile->width, tile->height, band->mb_size)) { | |
770 | av_log(avctx, AV_LOG_ERROR, "Allocated tile size %d mismatches " | |
771 | "parameters %d in ivi_process_empty_tile()\n", | |
772 | tile->num_MBs, IVI_MBs_PER_TILE(tile->width, tile->height, band->mb_size)); | |
773 | return AVERROR_INVALIDDATA; | |
774 | } | |
775 | ||
776 | offs = tile->ypos * band->pitch + tile->xpos; | |
777 | mb = tile->mbs; | |
778 | ref_mb = tile->ref_mbs; | |
779 | row_offset = band->mb_size * band->pitch; | |
780 | need_mc = 0; /* reset the mc tracking flag */ | |
781 | ||
782 | for (y = tile->ypos; y < (tile->ypos + tile->height); y += band->mb_size) { | |
783 | mb_offset = offs; | |
784 | ||
785 | for (x = tile->xpos; x < (tile->xpos + tile->width); x += band->mb_size) { | |
786 | mb->xpos = x; | |
787 | mb->ypos = y; | |
788 | mb->buf_offs = mb_offset; | |
789 | ||
790 | mb->type = 1; /* set the macroblocks type = INTER */ | |
791 | mb->cbp = 0; /* all blocks are empty */ | |
792 | ||
793 | if (!band->qdelta_present && !band->plane && !band->band_num) { | |
794 | mb->q_delta = band->glob_quant; | |
795 | mb->mv_x = 0; | |
796 | mb->mv_y = 0; | |
797 | } | |
798 | ||
799 | if (band->inherit_qdelta && ref_mb) | |
800 | mb->q_delta = ref_mb->q_delta; | |
801 | ||
802 | if (band->inherit_mv && ref_mb) { | |
803 | /* motion vector inheritance */ | |
804 | if (mv_scale) { | |
805 | mb->mv_x = ivi_scale_mv(ref_mb->mv_x, mv_scale); | |
806 | mb->mv_y = ivi_scale_mv(ref_mb->mv_y, mv_scale); | |
807 | } else { | |
808 | mb->mv_x = ref_mb->mv_x; | |
809 | mb->mv_y = ref_mb->mv_y; | |
810 | } | |
811 | need_mc |= mb->mv_x || mb->mv_y; /* tracking non-zero motion vectors */ | |
812 | { | |
813 | int dmv_x, dmv_y, cx, cy; | |
814 | ||
815 | dmv_x = mb->mv_x >> band->is_halfpel; | |
816 | dmv_y = mb->mv_y >> band->is_halfpel; | |
817 | cx = mb->mv_x & band->is_halfpel; | |
818 | cy = mb->mv_y & band->is_halfpel; | |
819 | ||
820 | if ( mb->xpos + dmv_x < 0 | |
821 | || mb->xpos + dmv_x + band->mb_size + cx > band->pitch | |
822 | || mb->ypos + dmv_y < 0 | |
823 | || mb->ypos + dmv_y + band->mb_size + cy > band->aheight) { | |
824 | av_log(avctx, AV_LOG_ERROR, "MV out of bounds\n"); | |
825 | return AVERROR_INVALIDDATA; | |
826 | } | |
827 | } | |
828 | } | |
829 | ||
830 | mb++; | |
831 | if (ref_mb) | |
832 | ref_mb++; | |
833 | mb_offset += band->mb_size; | |
834 | } // for x | |
835 | offs += row_offset; | |
836 | } // for y | |
837 | ||
838 | if (band->inherit_mv && need_mc) { /* apply motion compensation if there is at least one non-zero motion vector */ | |
839 | num_blocks = (band->mb_size != band->blk_size) ? 4 : 1; /* number of blocks per mb */ | |
840 | mc_no_delta_func = (band->blk_size == 8) ? ff_ivi_mc_8x8_no_delta | |
841 | : ff_ivi_mc_4x4_no_delta; | |
842 | ||
843 | for (mbn = 0, mb = tile->mbs; mbn < tile->num_MBs; mb++, mbn++) { | |
844 | mv_x = mb->mv_x; | |
845 | mv_y = mb->mv_y; | |
846 | if (!band->is_halfpel) { | |
847 | mc_type = 0; /* we have only fullpel vectors */ | |
848 | } else { | |
849 | mc_type = ((mv_y & 1) << 1) | (mv_x & 1); | |
850 | mv_x >>= 1; | |
851 | mv_y >>= 1; /* convert halfpel vectors into fullpel ones */ | |
852 | } | |
853 | ||
854 | for (blk = 0; blk < num_blocks; blk++) { | |
855 | /* adjust block position in the buffer according with its number */ | |
856 | offs = mb->buf_offs + band->blk_size * ((blk & 1) + !!(blk & 2) * band->pitch); | |
857 | ret = ivi_mc(band, mc_no_delta_func, 0, offs, | |
858 | mv_x, mv_y, 0, 0, mc_type, -1); | |
859 | if (ret < 0) | |
860 | return ret; | |
861 | } | |
862 | } | |
863 | } else { | |
864 | /* copy data from the reference tile into the current one */ | |
865 | src = band->ref_buf + tile->ypos * band->pitch + tile->xpos; | |
866 | dst = band->buf + tile->ypos * band->pitch + tile->xpos; | |
867 | for (y = 0; y < tile->height; y++) { | |
868 | memcpy(dst, src, tile->width*sizeof(band->buf[0])); | |
869 | src += band->pitch; | |
870 | dst += band->pitch; | |
871 | } | |
872 | } | |
873 | ||
874 | return 0; | |
875 | } | |
876 | ||
877 | ||
878 | #ifdef DEBUG | |
879 | static uint16_t ivi_calc_band_checksum(IVIBandDesc *band) | |
880 | { | |
881 | int x, y; | |
882 | int16_t *src, checksum; | |
883 | ||
884 | src = band->buf; | |
885 | checksum = 0; | |
886 | ||
887 | for (y = 0; y < band->height; src += band->pitch, y++) | |
888 | for (x = 0; x < band->width; x++) | |
889 | checksum += src[x]; | |
890 | ||
891 | return checksum; | |
892 | } | |
893 | #endif | |
894 | ||
895 | /* | |
896 | * Convert and output the current plane. | |
897 | * This conversion is done by adding back the bias value of 128 | |
898 | * (subtracted in the encoder) and clipping the result. | |
899 | * | |
900 | * @param[in] plane pointer to the descriptor of the plane being processed | |
901 | * @param[out] dst pointer to the buffer receiving converted pixels | |
902 | * @param[in] dst_pitch pitch for moving to the next y line | |
903 | */ | |
904 | static void ivi_output_plane(IVIPlaneDesc *plane, uint8_t *dst, int dst_pitch) | |
905 | { | |
906 | int x, y; | |
907 | const int16_t *src = plane->bands[0].buf; | |
908 | uint32_t pitch = plane->bands[0].pitch; | |
909 | ||
910 | if (!src) | |
911 | return; | |
912 | ||
913 | for (y = 0; y < plane->height; y++) { | |
914 | for (x = 0; x < plane->width; x++) | |
915 | dst[x] = av_clip_uint8(src[x] + 128); | |
916 | src += pitch; | |
917 | dst += dst_pitch; | |
918 | } | |
919 | } | |
920 | ||
921 | /** | |
922 | * Decode an Indeo 4 or 5 band. | |
923 | * | |
924 | * @param[in,out] ctx ptr to the decoder context | |
925 | * @param[in,out] band ptr to the band descriptor | |
926 | * @param[in] avctx ptr to the AVCodecContext | |
927 | * @return result code: 0 = OK, -1 = error | |
928 | */ | |
929 | static int decode_band(IVI45DecContext *ctx, | |
930 | IVIBandDesc *band, AVCodecContext *avctx) | |
931 | { | |
932 | int result, i, t, idx1, idx2, pos; | |
933 | IVITile *tile; | |
934 | ||
935 | band->buf = band->bufs[ctx->dst_buf]; | |
936 | if (!band->buf) { | |
937 | av_log(avctx, AV_LOG_ERROR, "Band buffer points to no data!\n"); | |
938 | return AVERROR_INVALIDDATA; | |
939 | } | |
940 | if (ctx->is_indeo4 && ctx->frame_type == IVI4_FRAMETYPE_BIDIR) { | |
941 | band->ref_buf = band->bufs[ctx->b_ref_buf]; | |
942 | band->b_ref_buf = band->bufs[ctx->ref_buf]; | |
943 | } else { | |
944 | band->ref_buf = band->bufs[ctx->ref_buf]; | |
945 | band->b_ref_buf = 0; | |
946 | } | |
947 | band->data_ptr = ctx->frame_data + (get_bits_count(&ctx->gb) >> 3); | |
948 | ||
949 | result = ctx->decode_band_hdr(ctx, band, avctx); | |
950 | if (result) { | |
951 | av_log(avctx, AV_LOG_ERROR, "Error while decoding band header: %d\n", | |
952 | result); | |
953 | return result; | |
954 | } | |
955 | ||
956 | if (band->is_empty) { | |
957 | av_log(avctx, AV_LOG_ERROR, "Empty band encountered!\n"); | |
958 | return AVERROR_INVALIDDATA; | |
959 | } | |
960 | ||
961 | band->rv_map = &ctx->rvmap_tabs[band->rvmap_sel]; | |
962 | ||
963 | /* apply corrections to the selected rvmap table if present */ | |
964 | for (i = 0; i < band->num_corr; i++) { | |
965 | idx1 = band->corr[i * 2]; | |
966 | idx2 = band->corr[i * 2 + 1]; | |
967 | FFSWAP(uint8_t, band->rv_map->runtab[idx1], band->rv_map->runtab[idx2]); | |
968 | FFSWAP(int16_t, band->rv_map->valtab[idx1], band->rv_map->valtab[idx2]); | |
969 | if (idx1 == band->rv_map->eob_sym || idx2 == band->rv_map->eob_sym) | |
970 | band->rv_map->eob_sym ^= idx1 ^ idx2; | |
971 | if (idx1 == band->rv_map->esc_sym || idx2 == band->rv_map->esc_sym) | |
972 | band->rv_map->esc_sym ^= idx1 ^ idx2; | |
973 | } | |
974 | ||
975 | pos = get_bits_count(&ctx->gb); | |
976 | ||
977 | for (t = 0; t < band->num_tiles; t++) { | |
978 | tile = &band->tiles[t]; | |
979 | ||
980 | if (tile->mb_size != band->mb_size) { | |
981 | av_log(avctx, AV_LOG_ERROR, "MB sizes mismatch: %d vs. %d\n", | |
982 | band->mb_size, tile->mb_size); | |
983 | return AVERROR_INVALIDDATA; | |
984 | } | |
985 | tile->is_empty = get_bits1(&ctx->gb); | |
986 | if (tile->is_empty) { | |
987 | result = ivi_process_empty_tile(avctx, band, tile, | |
988 | (ctx->planes[0].bands[0].mb_size >> 3) - (band->mb_size >> 3)); | |
989 | if (result < 0) | |
990 | break; | |
991 | av_dlog(avctx, "Empty tile encountered!\n"); | |
992 | } else { | |
993 | tile->data_size = ivi_dec_tile_data_size(&ctx->gb); | |
994 | if (!tile->data_size) { | |
995 | av_log(avctx, AV_LOG_ERROR, "Tile data size is zero!\n"); | |
996 | result = AVERROR_INVALIDDATA; | |
997 | break; | |
998 | } | |
999 | ||
1000 | result = ctx->decode_mb_info(ctx, band, tile, avctx); | |
1001 | if (result < 0) | |
1002 | break; | |
1003 | ||
1004 | result = ivi_decode_blocks(&ctx->gb, band, tile, avctx); | |
1005 | if (result < 0) { | |
1006 | av_log(avctx, AV_LOG_ERROR, | |
1007 | "Corrupted tile data encountered!\n"); | |
1008 | break; | |
1009 | } | |
1010 | ||
1011 | if (((get_bits_count(&ctx->gb) - pos) >> 3) != tile->data_size) { | |
1012 | av_log(avctx, AV_LOG_ERROR, | |
1013 | "Tile data_size mismatch!\n"); | |
1014 | result = AVERROR_INVALIDDATA; | |
1015 | break; | |
1016 | } | |
1017 | ||
1018 | pos += tile->data_size << 3; // skip to next tile | |
1019 | } | |
1020 | } | |
1021 | ||
1022 | /* restore the selected rvmap table by applying its corrections in | |
1023 | * reverse order */ | |
1024 | for (i = band->num_corr-1; i >= 0; i--) { | |
1025 | idx1 = band->corr[i*2]; | |
1026 | idx2 = band->corr[i*2+1]; | |
1027 | FFSWAP(uint8_t, band->rv_map->runtab[idx1], band->rv_map->runtab[idx2]); | |
1028 | FFSWAP(int16_t, band->rv_map->valtab[idx1], band->rv_map->valtab[idx2]); | |
1029 | if (idx1 == band->rv_map->eob_sym || idx2 == band->rv_map->eob_sym) | |
1030 | band->rv_map->eob_sym ^= idx1 ^ idx2; | |
1031 | if (idx1 == band->rv_map->esc_sym || idx2 == band->rv_map->esc_sym) | |
1032 | band->rv_map->esc_sym ^= idx1 ^ idx2; | |
1033 | } | |
1034 | ||
1035 | #ifdef DEBUG | |
1036 | if (band->checksum_present) { | |
1037 | uint16_t chksum = ivi_calc_band_checksum(band); | |
1038 | if (chksum != band->checksum) { | |
1039 | av_log(avctx, AV_LOG_ERROR, | |
1040 | "Band checksum mismatch! Plane %d, band %d, " | |
1041 | "received: %"PRIx32", calculated: %"PRIx16"\n", | |
1042 | band->plane, band->band_num, band->checksum, chksum); | |
1043 | } | |
1044 | } | |
1045 | #endif | |
1046 | ||
1047 | align_get_bits(&ctx->gb); | |
1048 | ||
1049 | return result; | |
1050 | } | |
1051 | ||
1052 | int ff_ivi_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, | |
1053 | AVPacket *avpkt) | |
1054 | { | |
1055 | IVI45DecContext *ctx = avctx->priv_data; | |
1056 | const uint8_t *buf = avpkt->data; | |
1057 | AVFrame *frame = data; | |
1058 | int buf_size = avpkt->size; | |
1059 | int result, p, b; | |
1060 | ||
1061 | init_get_bits(&ctx->gb, buf, buf_size * 8); | |
1062 | ctx->frame_data = buf; | |
1063 | ctx->frame_size = buf_size; | |
1064 | ||
1065 | result = ctx->decode_pic_hdr(ctx, avctx); | |
1066 | if (result) { | |
1067 | av_log(avctx, AV_LOG_ERROR, | |
1068 | "Error while decoding picture header: %d\n", result); | |
1069 | return result; | |
1070 | } | |
1071 | if (ctx->gop_invalid) | |
1072 | return AVERROR_INVALIDDATA; | |
1073 | ||
1074 | if (ctx->is_indeo4 && ctx->frame_type == IVI4_FRAMETYPE_NULL_LAST) { | |
1075 | if (ctx->got_p_frame) { | |
1076 | av_frame_move_ref(data, ctx->p_frame); | |
1077 | *got_frame = 1; | |
1078 | ctx->got_p_frame = 0; | |
1079 | } else { | |
1080 | *got_frame = 0; | |
1081 | } | |
1082 | return buf_size; | |
1083 | } | |
1084 | ||
1085 | if (ctx->gop_flags & IVI5_IS_PROTECTED) { | |
1086 | avpriv_report_missing_feature(avctx, "Password-protected clip!\n"); | |
1087 | return AVERROR_PATCHWELCOME; | |
1088 | } | |
1089 | ||
1090 | if (!ctx->planes[0].bands) { | |
1091 | av_log(avctx, AV_LOG_ERROR, "Color planes not initialized yet\n"); | |
1092 | return AVERROR_INVALIDDATA; | |
1093 | } | |
1094 | ||
1095 | ctx->switch_buffers(ctx); | |
1096 | ||
1097 | //{ START_TIMER; | |
1098 | ||
1099 | if (ctx->is_nonnull_frame(ctx)) { | |
1100 | ctx->buf_invalid[ctx->dst_buf] = 1; | |
1101 | for (p = 0; p < 3; p++) { | |
1102 | for (b = 0; b < ctx->planes[p].num_bands; b++) { | |
1103 | result = decode_band(ctx, &ctx->planes[p].bands[b], avctx); | |
1104 | if (result < 0) { | |
1105 | av_log(avctx, AV_LOG_ERROR, | |
1106 | "Error while decoding band: %d, plane: %d\n", b, p); | |
1107 | return result; | |
1108 | } | |
1109 | } | |
1110 | } | |
1111 | ctx->buf_invalid[ctx->dst_buf] = 0; | |
1112 | } else { | |
1113 | if (ctx->is_scalable) | |
1114 | return AVERROR_INVALIDDATA; | |
1115 | ||
1116 | for (p = 0; p < 3; p++) { | |
1117 | if (!ctx->planes[p].bands[0].buf) | |
1118 | return AVERROR_INVALIDDATA; | |
1119 | } | |
1120 | } | |
1121 | if (ctx->buf_invalid[ctx->dst_buf]) | |
1122 | return -1; | |
1123 | ||
1124 | //STOP_TIMER("decode_planes"); } | |
1125 | ||
1126 | if (!ctx->is_nonnull_frame(ctx)) | |
1127 | return buf_size; | |
1128 | ||
1129 | result = ff_set_dimensions(avctx, ctx->planes[0].width, ctx->planes[0].height); | |
1130 | if (result < 0) | |
1131 | return result; | |
1132 | ||
1133 | if ((result = ff_get_buffer(avctx, frame, 0)) < 0) | |
1134 | return result; | |
1135 | ||
1136 | if (ctx->is_scalable) { | |
1137 | if (ctx->is_indeo4) | |
1138 | ff_ivi_recompose_haar(&ctx->planes[0], frame->data[0], frame->linesize[0]); | |
1139 | else | |
1140 | ff_ivi_recompose53 (&ctx->planes[0], frame->data[0], frame->linesize[0]); | |
1141 | } else { | |
1142 | ivi_output_plane(&ctx->planes[0], frame->data[0], frame->linesize[0]); | |
1143 | } | |
1144 | ||
1145 | ivi_output_plane(&ctx->planes[2], frame->data[1], frame->linesize[1]); | |
1146 | ivi_output_plane(&ctx->planes[1], frame->data[2], frame->linesize[2]); | |
1147 | ||
1148 | *got_frame = 1; | |
1149 | ||
1150 | /* If the bidirectional mode is enabled, next I and the following P | |
1151 | * frame will be sent together. Unfortunately the approach below seems | |
1152 | * to be the only way to handle the B-frames mode. | |
1153 | * That's exactly the same Intel decoders do. | |
1154 | */ | |
1155 | if (ctx->is_indeo4 && ctx->frame_type == IVI4_FRAMETYPE_INTRA) { | |
1156 | int left; | |
1157 | ||
1158 | // skip version string | |
1159 | while (get_bits(&ctx->gb, 8)) { | |
1160 | if (get_bits_left(&ctx->gb) < 8) | |
1161 | return AVERROR_INVALIDDATA; | |
1162 | } | |
1163 | left = get_bits_count(&ctx->gb) & 0x18; | |
1164 | skip_bits_long(&ctx->gb, 64 - left); | |
1165 | if (get_bits_left(&ctx->gb) > 18 && | |
1166 | show_bits_long(&ctx->gb, 21) == 0xBFFF8) { // syncheader + inter type | |
1167 | AVPacket pkt; | |
1168 | pkt.data = avpkt->data + (get_bits_count(&ctx->gb) >> 3); | |
1169 | pkt.size = get_bits_left(&ctx->gb) >> 3; | |
1170 | ff_ivi_decode_frame(avctx, ctx->p_frame, &ctx->got_p_frame, &pkt); | |
1171 | } | |
1172 | } | |
1173 | ||
1174 | return buf_size; | |
1175 | } | |
1176 | ||
1177 | /** | |
1178 | * Close Indeo5 decoder and clean up its context. | |
1179 | */ | |
1180 | av_cold int ff_ivi_decode_close(AVCodecContext *avctx) | |
1181 | { | |
1182 | IVI45DecContext *ctx = avctx->priv_data; | |
1183 | ||
1184 | ivi_free_buffers(&ctx->planes[0]); | |
1185 | ||
1186 | if (ctx->mb_vlc.cust_tab.table) | |
1187 | ff_free_vlc(&ctx->mb_vlc.cust_tab); | |
1188 | ||
1189 | #if IVI4_STREAM_ANALYSER | |
1190 | if (ctx->is_indeo4) { | |
1191 | if (ctx->is_scalable) | |
1192 | av_log(avctx, AV_LOG_ERROR, "This video uses scalability mode!\n"); | |
1193 | if (ctx->uses_tiling) | |
1194 | av_log(avctx, AV_LOG_ERROR, "This video uses local decoding!\n"); | |
1195 | if (ctx->has_b_frames) | |
1196 | av_log(avctx, AV_LOG_ERROR, "This video contains B-frames!\n"); | |
1197 | if (ctx->has_transp) | |
1198 | av_log(avctx, AV_LOG_ERROR, "Transparency mode is enabled!\n"); | |
1199 | if (ctx->uses_haar) | |
1200 | av_log(avctx, AV_LOG_ERROR, "This video uses Haar transform!\n"); | |
1201 | if (ctx->uses_fullpel) | |
1202 | av_log(avctx, AV_LOG_ERROR, "This video uses fullpel motion vectors!\n"); | |
1203 | } | |
1204 | #endif | |
1205 | ||
1206 | av_frame_free(&ctx->p_frame); | |
1207 | ||
1208 | return 0; | |
1209 | } | |
1210 | ||
1211 | ||
1212 | /** | |
1213 | * Scan patterns shared between indeo4 and indeo5 | |
1214 | */ | |
1215 | const uint8_t ff_ivi_vertical_scan_8x8[64] = { | |
1216 | 0, 8, 16, 24, 32, 40, 48, 56, | |
1217 | 1, 9, 17, 25, 33, 41, 49, 57, | |
1218 | 2, 10, 18, 26, 34, 42, 50, 58, | |
1219 | 3, 11, 19, 27, 35, 43, 51, 59, | |
1220 | 4, 12, 20, 28, 36, 44, 52, 60, | |
1221 | 5, 13, 21, 29, 37, 45, 53, 61, | |
1222 | 6, 14, 22, 30, 38, 46, 54, 62, | |
1223 | 7, 15, 23, 31, 39, 47, 55, 63 | |
1224 | }; | |
1225 | ||
1226 | const uint8_t ff_ivi_horizontal_scan_8x8[64] = { | |
1227 | 0, 1, 2, 3, 4, 5, 6, 7, | |
1228 | 8, 9, 10, 11, 12, 13, 14, 15, | |
1229 | 16, 17, 18, 19, 20, 21, 22, 23, | |
1230 | 24, 25, 26, 27, 28, 29, 30, 31, | |
1231 | 32, 33, 34, 35, 36, 37, 38, 39, | |
1232 | 40, 41, 42, 43, 44, 45, 46, 47, | |
1233 | 48, 49, 50, 51, 52, 53, 54, 55, | |
1234 | 56, 57, 58, 59, 60, 61, 62, 63 | |
1235 | }; | |
1236 | ||
1237 | const uint8_t ff_ivi_direct_scan_4x4[16] = { | |
1238 | 0, 1, 4, 8, 5, 2, 3, 6, 9, 12, 13, 10, 7, 11, 14, 15 | |
1239 | }; | |
1240 | ||
1241 | ||
1242 | /** | |
1243 | * Run-value (RLE) tables. | |
1244 | */ | |
1245 | const RVMapDesc ff_ivi_rvmap_tabs[9] = { | |
1246 | { /* MapTab0 */ | |
1247 | 5, /* eob_sym */ | |
1248 | 2, /* esc_sym */ | |
1249 | /* run table */ | |
1250 | {1, 1, 0, 1, 1, 0, 1, 1, 2, 2, 1, 1, 1, 1, 3, 3, | |
1251 | 1, 1, 2, 2, 1, 1, 4, 4, 1, 1, 1, 1, 2, 2, 5, 5, | |
1252 | 1, 1, 3, 3, 1, 1, 6, 6, 1, 2, 1, 2, 7, 7, 1, 1, | |
1253 | 8, 8, 1, 1, 4, 2, 1, 4, 2, 1, 3, 3, 1, 1, 1, 9, | |
1254 | 9, 1, 2, 1, 2, 1, 5, 5, 1, 1, 10, 10, 1, 1, 3, 3, | |
1255 | 2, 2, 1, 1, 11, 11, 6, 4, 4, 1, 6, 1, 2, 1, 2, 12, | |
1256 | 8, 1, 12, 7, 8, 7, 1, 16, 1, 16, 1, 3, 3, 13, 1, 13, | |
1257 | 2, 2, 1, 15, 1, 5, 14, 15, 1, 5, 14, 1, 17, 8, 17, 8, | |
1258 | 1, 4, 4, 2, 2, 1, 25, 25, 24, 24, 1, 3, 1, 3, 1, 8, | |
1259 | 6, 7, 6, 1, 18, 8, 18, 1, 7, 23, 2, 2, 23, 1, 1, 21, | |
1260 | 22, 9, 9, 22, 19, 1, 21, 5, 19, 5, 1, 33, 20, 33, 20, 8, | |
1261 | 4, 4, 1, 32, 2, 2, 8, 3, 32, 26, 3, 1, 7, 7, 26, 6, | |
1262 | 1, 6, 1, 1, 16, 1, 10, 1, 10, 2, 16, 29, 28, 2, 29, 28, | |
1263 | 1, 27, 5, 8, 5, 27, 1, 8, 3, 7, 3, 31, 41, 31, 1, 41, | |
1264 | 6, 1, 6, 7, 4, 4, 1, 1, 2, 1, 2, 11, 34, 30, 11, 1, | |
1265 | 30, 15, 15, 34, 36, 40, 36, 40, 35, 35, 37, 37, 39, 39, 38, 38}, | |
1266 | ||
1267 | /* value table */ | |
1268 | { 1, -1, 0, 2, -2, 0, 3, -3, 1, -1, 4, -4, 5, -5, 1, -1, | |
1269 | 6, -6, 2, -2, 7, -7, 1, -1, 8, -8, 9, -9, 3, -3, 1, -1, | |
1270 | 10, -10, 2, -2, 11, -11, 1, -1, 12, 4, -12, -4, 1, -1, 13, -13, | |
1271 | 1, -1, 14, -14, 2, 5, 15, -2, -5, -15, -3, 3, 16, -16, 17, 1, | |
1272 | -1, -17, 6, 18, -6, -18, 2, -2, 19, -19, 1, -1, 20, -20, 4, -4, | |
1273 | 7, -7, 21, -21, 1, -1, 2, 3, -3, 22, -2, -22, 8, 23, -8, 1, | |
1274 | 2, -23, -1, 2, -2, -2, 24, 1, -24, -1, 25, 5, -5, 1, -25, -1, | |
1275 | 9, -9, 26, 1, -26, 3, 1, -1, 27, -3, -1, -27, 1, 3, -1, -3, | |
1276 | 28, -4, 4, 10, -10, -28, 1, -1, 1, -1, 29, 6, -29, -6, 30, -4, | |
1277 | 3, 3, -3, -30, 1, 4, -1, 31, -3, 1, 11, -11, -1, -31, 32, -1, | |
1278 | -1, 2, -2, 1, 1, -32, 1, 4, -1, -4, 33, -1, 1, 1, -1, 5, | |
1279 | 5, -5, -33, -1, -12, 12, -5, -7, 1, 1, 7, 34, 4, -4, -1, 4, | |
1280 | -34, -4, 35, 36, -2, -35, -2, -36, 2, 13, 2, -1, 1, -13, 1, -1, | |
1281 | 37, 1, -5, 6, 5, -1, 38, -6, -8, 5, 8, -1, 1, 1, -37, -1, | |
1282 | 5, 39, -5, -5, 6, -6, -38, -39, -14, 40, 14, 2, 1, 1, -2, -40, | |
1283 | -1, -2, 2, -1, -1, -1, 1, 1, 1, -1, 1, -1, 1, -1, 1, -1} | |
1284 | },{ | |
1285 | /* MapTab1 */ | |
1286 | 0, /* eob_sym */ | |
1287 | 38, /* esc_sym */ | |
1288 | /* run table */ | |
1289 | {0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 8, 6, 8, 7, | |
1290 | 7, 9, 9, 10, 10, 11, 11, 1, 12, 1, 12, 13, 13, 16, 14, 16, | |
1291 | 14, 15, 15, 17, 17, 18, 0, 18, 19, 20, 21, 19, 22, 21, 20, 22, | |
1292 | 25, 24, 2, 25, 24, 23, 23, 2, 26, 28, 26, 28, 29, 27, 29, 27, | |
1293 | 33, 33, 1, 32, 1, 3, 32, 30, 36, 3, 36, 30, 31, 31, 35, 34, | |
1294 | 37, 41, 34, 35, 37, 4, 41, 4, 49, 8, 8, 49, 40, 38, 5, 38, | |
1295 | 40, 39, 5, 39, 42, 43, 42, 7, 57, 6, 43, 44, 6, 50, 7, 44, | |
1296 | 57, 48, 50, 48, 45, 45, 46, 47, 51, 46, 47, 58, 1, 51, 58, 1, | |
1297 | 52, 59, 53, 9, 52, 55, 55, 59, 53, 56, 54, 56, 54, 9, 64, 64, | |
1298 | 60, 63, 60, 63, 61, 62, 61, 62, 2, 10, 2, 10, 11, 1, 11, 13, | |
1299 | 12, 1, 12, 13, 16, 16, 8, 8, 14, 3, 3, 15, 14, 15, 4, 4, | |
1300 | 1, 17, 17, 5, 1, 7, 7, 5, 6, 1, 2, 2, 6, 22, 1, 25, | |
1301 | 21, 22, 8, 24, 1, 21, 25, 24, 8, 18, 18, 23, 9, 20, 23, 33, | |
1302 | 29, 33, 20, 1, 19, 1, 29, 36, 9, 36, 19, 41, 28, 57, 32, 3, | |
1303 | 28, 3, 1, 27, 49, 49, 1, 32, 26, 26, 2, 4, 4, 7, 57, 41, | |
1304 | 2, 7, 10, 5, 37, 16, 10, 27, 8, 8, 13, 16, 37, 13, 1, 5}, | |
1305 | ||
1306 | /* value table */ | |
1307 | {0, 1, -1, 1, -1, 1, -1, 1, -1, 1, -1, 1, 1, -1, -1, 1, | |
1308 | -1, 1, -1, 1, -1, 1, -1, 2, 1, -2, -1, 1, -1, 1, 1, -1, | |
1309 | -1, 1, -1, 1, -1, 1, 0, -1, 1, 1, 1, -1, 1, -1, -1, -1, | |
1310 | 1, 1, 2, -1, -1, 1, -1, -2, 1, 1, -1, -1, 1, 1, -1, -1, | |
1311 | 1, -1, 3, 1, -3, 2, -1, 1, 1, -2, -1, -1, -1, 1, 1, 1, | |
1312 | 1, 1, -1, -1, -1, 2, -1, -2, 1, 2, -2, -1, 1, 1, 2, -1, | |
1313 | -1, 1, -2, -1, 1, 1, -1, 2, 1, 2, -1, 1, -2, -1, -2, -1, | |
1314 | -1, 1, 1, -1, 1, -1, 1, 1, 1, -1, -1, 1, 4, -1, -1, -4, | |
1315 | 1, 1, 1, 2, -1, -1, 1, -1, -1, 1, -1, -1, 1, -2, 1, -1, | |
1316 | 1, 1, -1, -1, 1, 1, -1, -1, 3, 2, -3, -2, 2, 5, -2, 2, | |
1317 | 2, -5, -2, -2, -2, 2, -3, 3, 2, 3, -3, 2, -2, -2, 3, -3, | |
1318 | 6, 2, -2, 3, -6, 3, -3, -3, 3, 7, -4, 4, -3, 2, -7, 2, | |
1319 | 2, -2, -4, 2, 8, -2, -2, -2, 4, 2, -2, 2, 3, 2, -2, -2, | |
1320 | 2, 2, -2, -8, -2, 9, -2, 2, -3, -2, 2, -2, 2, 2, 2, 4, | |
1321 | -2, -4, 10, 2, 2, -2, -9, -2, 2, -2, 5, 4, -4, 4, -2, 2, | |
1322 | -5, -4, -3, 4, 2, -3, 3, -2, -5, 5, 3, 3, -2, -3, -10, -4} | |
1323 | },{ | |
1324 | /* MapTab2 */ | |
1325 | 2, /* eob_sym */ | |
1326 | 11, /* esc_sym */ | |
1327 | /* run table */ | |
1328 | {1, 1, 0, 2, 2, 1, 1, 3, 3, 4, 4, 0, 1, 1, 5, 5, | |
1329 | 2, 2, 6, 6, 7, 7, 1, 8, 1, 8, 3, 3, 9, 9, 1, 2, | |
1330 | 2, 1, 4, 10, 4, 10, 11, 11, 1, 5, 12, 12, 1, 5, 13, 13, | |
1331 | 3, 3, 6, 6, 2, 2, 14, 14, 16, 16, 15, 7, 15, 8, 8, 7, | |
1332 | 1, 1, 17, 17, 4, 4, 1, 1, 18, 18, 2, 2, 5, 5, 25, 3, | |
1333 | 9, 3, 25, 9, 19, 24, 19, 24, 1, 21, 20, 1, 21, 22, 20, 22, | |
1334 | 23, 23, 8, 6, 33, 6, 8, 33, 7, 7, 26, 26, 1, 32, 1, 32, | |
1335 | 28, 4, 28, 10, 29, 27, 27, 10, 41, 4, 29, 2, 2, 41, 36, 31, | |
1336 | 49, 31, 34, 30, 34, 36, 30, 35, 1, 49, 11, 5, 35, 11, 1, 3, | |
1337 | 3, 5, 37, 37, 8, 40, 8, 40, 12, 12, 42, 42, 1, 38, 16, 57, | |
1338 | 1, 6, 16, 39, 38, 6, 7, 7, 13, 13, 39, 43, 2, 43, 57, 2, | |
1339 | 50, 9, 44, 9, 50, 4, 15, 48, 44, 4, 1, 15, 48, 14, 14, 1, | |
1340 | 45, 45, 8, 3, 5, 8, 51, 47, 3, 46, 46, 47, 5, 51, 1, 17, | |
1341 | 17, 58, 1, 58, 2, 52, 52, 2, 53, 7, 59, 6, 6, 56, 53, 55, | |
1342 | 7, 55, 1, 54, 59, 56, 54, 10, 1, 10, 4, 60, 1, 60, 8, 4, | |
1343 | 8, 64, 64, 61, 1, 63, 3, 63, 62, 61, 5, 11, 5, 3, 11, 62}, | |
1344 | ||
1345 | /* value table */ | |
1346 | { 1, -1, 0, 1, -1, 2, -2, 1, -1, 1, -1, 0, 3, -3, 1, -1, | |
1347 | 2, -2, 1, -1, 1, -1, 4, 1, -4, -1, 2, -2, 1, -1, 5, 3, | |
1348 | -3, -5, 2, 1, -2, -1, 1, -1, 6, 2, 1, -1, -6, -2, 1, -1, | |
1349 | 3, -3, 2, -2, 4, -4, 1, -1, 1, -1, 1, 2, -1, 2, -2, -2, | |
1350 | 7, -7, 1, -1, 3, -3, 8, -8, 1, -1, 5, -5, 3, -3, 1, 4, | |
1351 | 2, -4, -1, -2, 1, 1, -1, -1, 9, 1, 1, -9, -1, 1, -1, -1, | |
1352 | 1, -1, 3, -3, 1, 3, -3, -1, 3, -3, 1, -1, 10, 1, -10, -1, | |
1353 | 1, 4, -1, 2, 1, -1, 1, -2, 1, -4, -1, 6, -6, -1, 1, 1, | |
1354 | 1, -1, 1, 1, -1, -1, -1, 1, 11, -1, -2, 4, -1, 2, -11, 5, | |
1355 | -5, -4, -1, 1, 4, 1, -4, -1, -2, 2, 1, -1, 12, 1, -2, 1, | |
1356 | -12, 4, 2, 1, -1, -4, 4, -4, 2, -2, -1, 1, 7, -1, -1, -7, | |
1357 | -1, -3, 1, 3, 1, 5, 2, 1, -1, -5, 13, -2, -1, 2, -2, -13, | |
1358 | 1, -1, 5, 6, 5, -5, 1, 1, -6, 1, -1, -1, -5, -1, 14, 2, | |
1359 | -2, 1, -14, -1, 8, 1, -1, -8, 1, 5, 1, 5, -5, 1, -1, 1, | |
1360 | -5, -1, 15, 1, -1, -1, -1, 3, -15, -3, 6, 1, 16, -1, 6, -6, | |
1361 | -6, 1, -1, 1, -16, 1, 7, -1, 1, -1, -6, -3, 6, -7, 3, -1} | |
1362 | },{ | |
1363 | /* MapTab3 */ | |
1364 | 0, /* eob_sym */ | |
1365 | 35, /* esc_sym */ | |
1366 | /* run table */ | |
1367 | {0, 1, 1, 2, 2, 3, 3, 4, 4, 1, 1, 5, 5, 6, 6, 7, | |
1368 | 7, 8, 8, 9, 9, 2, 2, 10, 10, 1, 1, 11, 11, 12, 12, 3, | |
1369 | 3, 13, 13, 0, 14, 14, 16, 15, 16, 15, 4, 4, 17, 1, 17, 1, | |
1370 | 5, 5, 18, 18, 2, 2, 6, 6, 8, 19, 7, 8, 7, 19, 20, 20, | |
1371 | 21, 21, 22, 24, 22, 24, 23, 23, 1, 1, 25, 25, 3, 3, 26, 26, | |
1372 | 9, 9, 27, 27, 28, 28, 33, 29, 4, 33, 29, 1, 4, 1, 32, 32, | |
1373 | 2, 2, 31, 10, 30, 10, 30, 31, 34, 34, 5, 5, 36, 36, 35, 41, | |
1374 | 35, 11, 41, 11, 37, 1, 8, 8, 37, 6, 1, 6, 40, 7, 7, 40, | |
1375 | 12, 38, 12, 39, 39, 38, 49, 13, 49, 13, 3, 42, 3, 42, 16, 16, | |
1376 | 43, 43, 14, 14, 1, 1, 44, 15, 44, 15, 2, 2, 57, 48, 50, 48, | |
1377 | 57, 50, 4, 45, 45, 4, 46, 47, 47, 46, 1, 51, 1, 17, 17, 51, | |
1378 | 8, 9, 9, 5, 58, 8, 58, 5, 52, 52, 55, 56, 53, 56, 55, 59, | |
1379 | 59, 53, 54, 1, 6, 54, 7, 7, 6, 1, 2, 3, 2, 3, 64, 60, | |
1380 | 60, 10, 10, 64, 61, 62, 61, 63, 1, 63, 62, 1, 18, 24, 18, 4, | |
1381 | 25, 4, 8, 21, 21, 1, 24, 22, 25, 22, 8, 11, 19, 11, 23, 1, | |
1382 | 20, 23, 19, 20, 5, 12, 5, 1, 16, 2, 12, 13, 2, 13, 1, 16}, | |
1383 | ||
1384 | /* value table */ | |
1385 | { 0, 1, -1, 1, -1, 1, -1, 1, -1, 2, -2, 1, -1, 1, -1, 1, | |
1386 | -1, 1, -1, 1, -1, 2, -2, 1, -1, 3, -3, 1, -1, 1, -1, 2, | |
1387 | -2, 1, -1, 0, 1, -1, 1, 1, -1, -1, 2, -2, 1, 4, -1, -4, | |
1388 | 2, -2, 1, -1, -3, 3, 2, -2, 2, 1, 2, -2, -2, -1, 1, -1, | |
1389 | 1, -1, 1, 1, -1, -1, 1, -1, 5, -5, 1, -1, 3, -3, 1, -1, | |
1390 | 2, -2, 1, -1, 1, -1, 1, 1, 3, -1, -1, 6, -3, -6, -1, 1, | |
1391 | 4, -4, 1, 2, 1, -2, -1, -1, 1, -1, 3, -3, 1, -1, 1, 1, | |
1392 | -1, 2, -1, -2, 1, 7, -3, 3, -1, 3, -7, -3, 1, -3, 3, -1, | |
1393 | 2, 1, -2, 1, -1, -1, 1, 2, -1, -2, -4, -1, 4, 1, 2, -2, | |
1394 | 1, -1, -2, 2, 8, -8, -1, 2, 1, -2, -5, 5, 1, -1, -1, 1, | |
1395 | -1, 1, 4, -1, 1, -4, -1, -1, 1, 1, 9, 1, -9, 2, -2, -1, | |
1396 | -4, 3, -3, -4, -1, 4, 1, 4, 1, -1, 1, -1, 1, 1, -1, 1, | |
1397 | -1, -1, -1, 10, 4, 1, 4, -4, -4, -10, 6, 5, -6, -5, 1, -1, | |
1398 | 1, 3, -3, -1, 1, -1, -1, -1, 11, 1, 1, -11, -2, -2, 2, 5, | |
1399 | -2, -5, -5, 2, -2, 12, 2, -2, 2, 2, 5, -3, -2, 3, -2, -12, | |
1400 | -2, 2, 2, 2, -5, 3, 5, 13, -3, 7, -3, -3, -7, 3, -13, 3} | |
1401 | },{ | |
1402 | /* MapTab4 */ | |
1403 | 0, /* eob_sym */ | |
1404 | 34, /* esc_sym */ | |
1405 | /* run table */ | |
1406 | {0, 1, 1, 1, 2, 2, 1, 3, 3, 1, 1, 1, 4, 4, 1, 5, | |
1407 | 2, 1, 5, 2, 1, 1, 6, 6, 1, 1, 1, 1, 1, 7, 3, 1, | |
1408 | 2, 3, 0, 1, 2, 7, 1, 1, 1, 8, 1, 1, 8, 1, 1, 1, | |
1409 | 9, 1, 9, 1, 2, 1, 1, 2, 1, 1, 10, 4, 1, 10, 1, 4, | |
1410 | 1, 1, 1, 1, 1, 3, 1, 1, 1, 3, 2, 1, 5, 1, 1, 1, | |
1411 | 2, 5, 1, 11, 1, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, | |
1412 | 2, 1, 6, 1, 6, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 12, | |
1413 | 3, 1, 12, 1, 1, 1, 2, 1, 1, 3, 1, 1, 1, 1, 1, 1, | |
1414 | 4, 1, 1, 1, 2, 1, 1, 4, 1, 1, 1, 1, 1, 1, 2, 1, | |
1415 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 2, 1, 1, 5, | |
1416 | 1, 1, 1, 1, 1, 7, 1, 7, 1, 1, 2, 3, 1, 1, 1, 1, | |
1417 | 5, 1, 1, 1, 1, 1, 1, 2, 13, 1, 1, 1, 1, 1, 1, 1, | |
1418 | 1, 1, 1, 1, 1, 1, 1, 1, 13, 2, 1, 1, 4, 1, 1, 1, | |
1419 | 3, 1, 6, 1, 1, 1, 14, 1, 1, 1, 1, 1, 14, 6, 1, 1, | |
1420 | 1, 1, 15, 2, 4, 1, 2, 3, 15, 1, 1, 1, 8, 1, 1, 8, | |
1421 | 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1}, | |
1422 | ||
1423 | /* value table */ | |
1424 | { 0, 1, -1, 2, 1, -1, -2, 1, -1, 3, -3, 4, 1, -1, -4, 1, | |
1425 | 2, 5, -1, -2, -5, 6, 1, -1, -6, 7, -7, 8, -8, 1, 2, 9, | |
1426 | 3, -2, 0, -9, -3, -1, 10, -10, 11, 1, -11, 12, -1, -12, 13, -13, | |
1427 | 1, 14, -1, -14, 4, 15, -15, -4, 16, -16, 1, 2, 17, -1, -17, -2, | |
1428 | 18, -18, 19, -19, 20, 3, -20, 21, -21, -3, 5, 22, 2, -22, -23, 23, | |
1429 | -5, -2, 24, 1, -24, -1, 25, -25, 26, -26, -27, 27, 28, 29, -28, -29, | |
1430 | 6, 30, 2, -31, -2, -30, 31, -6, -32, 32, 33, -33, 34, -35, -34, 1, | |
1431 | 4, -36, -1, 35, 37, 36, 7, -37, 38, -4, -38, 39, 41, 40, -40, -39, | |
1432 | 3, 42, -43, -41, -7, -42, 43, -3, 44, -44, 45, -45, 46, 47, 8, -47, | |
1433 | -48, -46, 50, -50, 48, 49, 51, -49, 52, -52, 5, -51, -8, -53, 53, 3, | |
1434 | -56, 56, 55, 54, -54, 2, 60, -2, -55, 58, 9, -5, 59, 57, -57, -63, | |
1435 | -3, -58, -60, -61, 61, -59, -62, -9, 1, 64, 62, 69, -64, 63, 65, -67, | |
1436 | -68, 66, -65, 68, -66, -69, 67, -70, -1, 10, 71, -71, 4, 73, 72, 70, | |
1437 | 6, -76, -3, 74, -78, -74, 1, 78, 80, -72, -75, 76, -1, 3, -73, 79, | |
1438 | 75, 77, 1, 11, -4, -79, -10, -6, -1, -77, -83, -80, 2, 81, -84, -2, | |
1439 | 83, -81, 82, -82, 84, -87, -86, 85, -11, -85, 86, -89, 87, -88, 88, 89} | |
1440 | },{ | |
1441 | /* MapTab5 */ | |
1442 | 2, /* eob_sym */ | |
1443 | 33, /* esc_sym */ | |
1444 | /* run table */ | |
1445 | {1, 1, 0, 2, 1, 2, 1, 3, 3, 1, 1, 4, 4, 2, 2, 1, | |
1446 | 1, 5, 5, 6, 1, 6, 1, 7, 7, 3, 3, 2, 8, 2, 8, 1, | |
1447 | 1, 0, 9, 9, 1, 1, 10, 4, 10, 4, 11, 11, 2, 1, 2, 1, | |
1448 | 12, 12, 3, 3, 1, 1, 13, 5, 5, 13, 14, 1, 1, 14, 2, 2, | |
1449 | 6, 6, 15, 1, 1, 15, 16, 4, 7, 16, 4, 7, 1, 1, 3, 3, | |
1450 | 8, 8, 2, 2, 1, 1, 17, 17, 1, 1, 18, 18, 5, 5, 2, 2, | |
1451 | 1, 1, 9, 19, 9, 19, 20, 3, 3, 20, 1, 10, 21, 1, 10, 4, | |
1452 | 4, 21, 22, 6, 6, 22, 1, 1, 23, 24, 2, 2, 23, 24, 11, 1, | |
1453 | 1, 11, 7, 25, 7, 1, 1, 25, 8, 8, 3, 26, 3, 1, 12, 2, | |
1454 | 2, 26, 1, 12, 5, 5, 27, 4, 1, 4, 1, 27, 28, 1, 28, 13, | |
1455 | 1, 13, 2, 29, 2, 1, 32, 6, 1, 30, 14, 29, 14, 6, 3, 31, | |
1456 | 3, 1, 30, 1, 32, 31, 33, 9, 33, 1, 1, 7, 9, 7, 2, 2, | |
1457 | 1, 1, 4, 36, 34, 4, 5, 10, 10, 5, 34, 1, 1, 35, 8, 8, | |
1458 | 36, 3, 35, 1, 15, 3, 2, 1, 16, 15, 16, 2, 37, 1, 37, 1, | |
1459 | 1, 1, 6, 6, 38, 1, 38, 11, 1, 39, 39, 40, 11, 2, 41, 4, | |
1460 | 40, 1, 2, 4, 1, 1, 1, 41, 3, 1, 3, 1, 5, 7, 5, 7}, | |
1461 | ||
1462 | /* value table */ | |
1463 | { 1, -1, 0, 1, 2, -1, -2, 1, -1, 3, -3, 1, -1, 2, -2, 4, | |
1464 | -4, 1, -1, 1, 5, -1, -5, 1, -1, 2, -2, 3, 1, -3, -1, 6, | |
1465 | -6, 0, 1, -1, 7, -7, 1, 2, -1, -2, 1, -1, 4, 8, -4, -8, | |
1466 | 1, -1, 3, -3, 9, -9, 1, 2, -2, -1, 1, 10, -10, -1, 5, -5, | |
1467 | 2, -2, 1, 11, -11, -1, 1, 3, 2, -1, -3, -2, 12, -12, 4, -4, | |
1468 | 2, -2, -6, 6, 13, -13, 1, -1, 14, -14, 1, -1, 3, -3, 7, -7, | |
1469 | 15, -15, 2, 1, -2, -1, 1, 5, -5, -1, -16, 2, 1, 16, -2, 4, | |
1470 | -4, -1, 1, 3, -3, -1, 17, -17, 1, 1, -8, 8, -1, -1, 2, 18, | |
1471 | -18, -2, 3, 1, -3, 19, -19, -1, 3, -3, 6, 1, -6, 20, 2, 9, | |
1472 | -9, -1, -20, -2, 4, -4, 1, -5, 21, 5, -21, -1, 1, -22, -1, 2, | |
1473 | 22, -2, 10, 1, -10, 23, 1, 4, -23, 1, 2, -1, -2, -4, -7, 1, | |
1474 | 7, -24, -1, 24, -1, -1, 1, 3, -1, -25, 25, 4, -3, -4, 11, -11, | |
1475 | 26, -26, 6, 1, 1, -6, -5, -3, 3, 5, -1, -27, 27, 1, 4, -4, | |
1476 | -1, -8, -1, 28, 2, 8, -12, -28, -2, -2, 2, 12, -1, 29, 1, -29, | |
1477 | 30, -30, 5, -5, 1, -31, -1, 3, 31, -1, 1, 1, -3, -13, 1, -7, | |
1478 | -1, -32, 13, 7, 32, 33, -33, -1, -9, -34, 9, 34, -6, 5, 6, -5} | |
1479 | },{ | |
1480 | /* MapTab6 */ | |
1481 | 2, /* eob_sym */ | |
1482 | 13, /* esc_sym */ | |
1483 | /* run table */ | |
1484 | {1, 1, 0, 1, 1, 2, 2, 1, 1, 3, 3, 1, 1, 0, 2, 2, | |
1485 | 4, 1, 4, 1, 1, 1, 5, 5, 1, 1, 6, 6, 2, 2, 1, 1, | |
1486 | 3, 3, 7, 7, 1, 1, 8, 8, 1, 1, 2, 2, 1, 9, 1, 9, | |
1487 | 4, 4, 10, 1, 1, 10, 1, 1, 11, 11, 3, 3, 1, 2, 1, 2, | |
1488 | 1, 1, 12, 12, 5, 5, 1, 1, 13, 1, 1, 13, 2, 2, 1, 1, | |
1489 | 6, 6, 1, 1, 4, 14, 4, 14, 3, 1, 3, 1, 1, 1, 15, 7, | |
1490 | 15, 2, 2, 7, 1, 1, 1, 8, 1, 8, 16, 16, 1, 1, 1, 1, | |
1491 | 2, 1, 1, 2, 1, 1, 3, 5, 5, 3, 4, 1, 1, 4, 1, 1, | |
1492 | 17, 17, 9, 1, 1, 9, 2, 2, 1, 1, 10, 10, 1, 6, 1, 1, | |
1493 | 6, 18, 1, 1, 18, 1, 1, 1, 2, 2, 3, 1, 3, 1, 1, 1, | |
1494 | 4, 1, 19, 1, 19, 7, 1, 1, 20, 1, 4, 20, 1, 7, 11, 2, | |
1495 | 1, 11, 21, 2, 8, 5, 1, 8, 1, 5, 21, 1, 1, 1, 22, 1, | |
1496 | 1, 22, 1, 1, 3, 3, 1, 23, 2, 12, 24, 1, 1, 2, 1, 1, | |
1497 | 12, 23, 1, 1, 24, 1, 1, 1, 4, 1, 1, 1, 2, 1, 6, 6, | |
1498 | 4, 2, 1, 1, 1, 1, 1, 1, 1, 14, 13, 3, 1, 25, 9, 25, | |
1499 | 14, 1, 9, 3, 13, 1, 1, 1, 1, 1, 10, 1, 1, 2, 10, 2}, | |
1500 | ||
1501 | /* value table */ | |
1502 | {-20, -1, 0, 2, -2, 1, -1, 3, -3, 1, -1, 4, -4, 0, 2, -2, | |
1503 | 1, 5, -1, -5, 6, -6, 1, -1, 7, -7, 1, -1, 3, -3, 8, -8, | |
1504 | 2, -2, 1, -1, 9, -9, 1, -1, 10, -10, 4, -4, 11, 1, -11, -1, | |
1505 | 2, -2, 1, 12, -12, -1, 13, -13, 1, -1, 3, -3, 14, 5, -14, -5, | |
1506 | -15, 15, -1, 1, 2, -2, 16, -16, 1, 17, -17, -1, 6, -6, 18, -18, | |
1507 | 2, -2, -19, 19, -3, 1, 3, -1, 4, 20, -4, 1, -21, 21, 1, 2, | |
1508 | -1, -7, 7, -2, 22, -22, 23, 2, -23, -2, 1, -1, -24, 24, -25, 25, | |
1509 | -8, -26, 26, 8, -27, 27, 5, 3, -3, -5, -4, 28, -28, 4, 29, -29, | |
1510 | 1, -1, -2, -30, 30, 2, 9, -9, -31, 31, 2, -2, -32, 3, 32, -33, | |
1511 | -3, 1, 33, -34, -1, 34, -35, 35, -10, 10, -6, 36, 6, -36, 37, -37, | |
1512 | -5, 38, 1, -38, -1, 3, 39, -39, -1, 40, 5, 1, -40, -3, 2, -11, | |
1513 | -41, -2, 1, 11, -3, -4, 41, 3, 42, 4, -1, -43, -42, 43, 1, -44, | |
1514 | 45, -1, 44, -45, -7, 7, -46, 1, -12, 2, 1, -47, 46, 12, 47, 48, | |
1515 | -2, -1, -48, 49, -1, -50, -49, 50, -6, -51, 51, 52, -13, 53, -4, 4, | |
1516 | 6, 13, -53, -52, -54, 55, 54, -55, -56, -2, 2, -8, 56, 1, -3, -1, | |
1517 | 2, 58, 3, 8, -2, 57, -58, -60, -59, -57, -3, 60, 59, -14, 3, 14} | |
1518 | },{ | |
1519 | /* MapTab7 */ | |
1520 | 2, /* eob_sym */ | |
1521 | 38, /* esc_sym */ | |
1522 | /* run table */ | |
1523 | {1, 1, 0, 2, 2, 1, 1, 3, 3, 4, 4, 5, 5, 1, 1, 6, | |
1524 | 6, 2, 2, 7, 7, 8, 8, 1, 1, 3, 3, 9, 9, 10, 10, 1, | |
1525 | 1, 2, 2, 4, 4, 11, 0, 11, 12, 12, 13, 13, 1, 1, 5, 5, | |
1526 | 14, 14, 15, 16, 15, 16, 3, 3, 1, 6, 1, 6, 2, 2, 7, 7, | |
1527 | 8, 8, 17, 17, 1, 1, 4, 4, 18, 18, 2, 2, 1, 19, 1, 20, | |
1528 | 19, 20, 21, 21, 3, 3, 22, 22, 5, 5, 24, 1, 1, 23, 9, 23, | |
1529 | 24, 9, 2, 2, 10, 1, 1, 10, 6, 6, 25, 4, 4, 25, 7, 7, | |
1530 | 26, 8, 1, 8, 3, 1, 26, 3, 11, 11, 27, 27, 2, 28, 1, 2, | |
1531 | 28, 1, 12, 12, 5, 5, 29, 13, 13, 29, 32, 1, 1, 33, 31, 30, | |
1532 | 32, 4, 30, 33, 4, 31, 3, 14, 1, 1, 3, 34, 34, 2, 2, 14, | |
1533 | 6, 6, 35, 36, 35, 36, 1, 15, 1, 16, 16, 15, 7, 9, 7, 9, | |
1534 | 37, 8, 8, 37, 1, 1, 39, 2, 38, 39, 2, 40, 5, 38, 40, 5, | |
1535 | 3, 3, 4, 4, 10, 10, 1, 1, 1, 1, 41, 2, 41, 2, 6, 6, | |
1536 | 1, 1, 11, 42, 11, 43, 3, 42, 3, 17, 4, 43, 1, 17, 7, 1, | |
1537 | 8, 44, 4, 7, 44, 5, 8, 2, 5, 1, 2, 48, 45, 1, 12, 45, | |
1538 | 12, 48, 13, 13, 1, 9, 9, 46, 1, 46, 47, 47, 49, 18, 18, 49}, | |
1539 | ||
1540 | /* value table */ | |
1541 | { 1, -1, 0, 1, -1, 2, -2, 1, -1, 1, -1, 1, -1, 3, -3, 1, | |
1542 | -1, -2, 2, 1, -1, 1, -1, 4, -4, -2, 2, 1, -1, 1, -1, 5, | |
1543 | -5, -3, 3, 2, -2, 1, 0, -1, 1, -1, 1, -1, 6, -6, 2, -2, | |
1544 | 1, -1, 1, 1, -1, -1, -3, 3, 7, 2, -7, -2, -4, 4, 2, -2, | |
1545 | 2, -2, 1, -1, 8, -8, 3, -3, 1, -1, -5, 5, 9, 1, -9, 1, | |
1546 | -1, -1, 1, -1, -4, 4, 1, -1, 3, -3, 1, -10, 10, 1, 2, -1, | |
1547 | -1, -2, 6, -6, 2, 11, -11, -2, 3, -3, 1, -4, 4, -1, 3, -3, | |
1548 | 1, 3, 12, -3, -5, -12, -1, 5, 2, -2, 1, -1, -7, 1, 13, 7, | |
1549 | -1, -13, 2, -2, 4, -4, 1, 2, -2, -1, 1, 14, -14, 1, 1, 1, | |
1550 | -1, -5, -1, -1, 5, -1, -6, 2, -15, 15, 6, 1, -1, -8, 8, -2, | |
1551 | -4, 4, 1, 1, -1, -1, 16, 2, -16, -2, 2, -2, 4, 3, -4, -3, | |
1552 | -1, -4, 4, 1, -17, 17, -1, -9, 1, 1, 9, 1, -5, -1, -1, 5, | |
1553 | -7, 7, 6, -6, 3, -3, 18, -18, 19, -19, 1, -10, -1, 10, -5, 5, | |
1554 | 20, -20, -3, 1, 3, 1, 8, -1, -8, 2, 7, -1, -21, -2, 5, 21, | |
1555 | 5, -1, -7, -5, 1, -6, -5, -11, 6, 22, 11, 1, 1, -22, -3, -1, | |
1556 | 3, -1, 3, -3, -23, 4, -4, 1, 23, -1, 1, -1, 1, -2, 2, -1} | |
1557 | },{ | |
1558 | /* MapTab8 */ | |
1559 | 4, /* eob_sym */ | |
1560 | 11, /* esc_sym */ | |
1561 | /* run table */ | |
1562 | {1, 1, 1, 1, 0, 2, 2, 1, 1, 3, 3, 0, 1, 1, 2, 2, | |
1563 | 4, 4, 1, 1, 5, 5, 1, 1, 2, 2, 3, 3, 6, 6, 1, 1, | |
1564 | 7, 7, 8, 1, 8, 2, 2, 1, 4, 4, 1, 3, 1, 3, 9, 9, | |
1565 | 2, 2, 1, 5, 1, 5, 10, 10, 1, 1, 11, 11, 3, 6, 3, 4, | |
1566 | 4, 6, 2, 2, 1, 12, 1, 12, 7, 13, 7, 13, 1, 1, 8, 8, | |
1567 | 2, 2, 14, 14, 16, 15, 16, 5, 5, 1, 3, 15, 1, 3, 4, 4, | |
1568 | 1, 1, 17, 17, 2, 2, 6, 6, 1, 18, 1, 18, 22, 21, 22, 21, | |
1569 | 25, 24, 25, 19, 9, 20, 9, 23, 19, 24, 20, 3, 23, 7, 3, 1, | |
1570 | 1, 7, 28, 26, 29, 5, 28, 26, 5, 8, 29, 4, 8, 27, 2, 2, | |
1571 | 4, 27, 1, 1, 10, 36, 10, 33, 33, 36, 30, 1, 32, 32, 1, 30, | |
1572 | 6, 31, 31, 35, 3, 6, 11, 11, 3, 2, 35, 2, 34, 1, 34, 1, | |
1573 | 37, 37, 12, 7, 12, 5, 41, 5, 4, 7, 1, 8, 13, 4, 1, 41, | |
1574 | 13, 38, 8, 38, 9, 1, 40, 40, 9, 1, 39, 2, 2, 49, 39, 42, | |
1575 | 3, 3, 14, 16, 49, 14, 16, 42, 43, 43, 6, 6, 15, 1, 1, 15, | |
1576 | 44, 44, 1, 1, 50, 48, 4, 5, 4, 7, 5, 2, 10, 10, 48, 7, | |
1577 | 50, 45, 2, 1, 45, 8, 8, 1, 46, 46, 3, 47, 47, 3, 1, 1}, | |
1578 | ||
1579 | /* value table */ | |
1580 | { 1, -1, 2, -2, 0, 1, -1, 3, -3, 1, -1, 0, 4, -4, 2, -2, | |
1581 | 1, -1, 5, -5, 1, -1, 6, -6, 3, -3, 2, -2, 1, -1, 7, -7, | |
1582 | 1, -1, 1, 8, -1, 4, -4, -8, 2, -2, 9, 3, -9, -3, 1, -1, | |
1583 | 5, -5, 10, 2, -10, -2, 1, -1, 11, -11, 1, -1, -4, 2, 4, 3, | |
1584 | -3, -2, 6, -6, 12, 1, -12, -1, 2, 1, -2, -1, 13, -13, 2, -2, | |
1585 | 7, -7, 1, -1, 1, 1, -1, 3, -3, 14, 5, -1, -14, -5, 4, -4, | |
1586 | 15, -15, 1, -1, 8, -8, -3, 3, 16, 1, -16, -1, 1, 1, -1, -1, | |
1587 | 1, 1, -1, 1, 2, 1, -2, 1, -1, -1, -1, 6, -1, 3, -6, 17, | |
1588 | -17, -3, 1, 1, 1, 4, -1, -1, -4, 3, -1, 5, -3, -1, -9, 9, | |
1589 | -5, 1, 18, -18, 2, 1, -2, 1, -1, -1, 1, 19, -1, 1, -19, -1, | |
1590 | 4, 1, -1, 1, 7, -4, -2, 2, -7, 10, -1, -10, 1, 20, -1, -20, | |
1591 | 1, -1, 2, 4, -2, 5, 1, -5, 6, -4, 21, 4, 2, -6, -21, -1, | |
1592 | -2, 1, -4, -1, -3, 22, -1, 1, 3, -22, -1, 11, -11, 1, 1, 1, | |
1593 | 8, -8, 2, 2, -1, -2, -2, -1, 1, -1, -5, 5, 2, 23, -23, -2, | |
1594 | 1, -1, 24, -24, -1, -1, 7, 6, -7, 5, -6, 12, -3, 3, 1, -5, | |
1595 | 1, 1, -12, 25, -1, -5, 5, -25, -1, 1, 9, 1, -1, -9, 26, -26} | |
1596 | } | |
1597 | }; |