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1 : | Isibaar | 1.1 | /************************************************************************** |
2 : | * | ||
3 : | edgomez | 1.12 | * XVID MPEG-4 VIDEO CODEC |
4 : | * - Decoder main module - | ||
5 : | Isibaar | 1.1 | * |
6 : | edgomez | 1.42 | * Copyright(C) 2002 MinChen <chenm001@163.com> |
7 : | * 2002 Peter Ross <pross@xvid.org> | ||
8 : | * | ||
9 : | edgomez | 1.43 | * This file is part of XviD, a free MPEG-4 video encoder/decoder |
10 : | edgomez | 1.12 | * |
11 : | edgomez | 1.43 | * XviD is free software; you can redistribute it and/or modify it |
12 : | * under the terms of the GNU General Public License as published by | ||
13 : | edgomez | 1.12 | * the Free Software Foundation; either version 2 of the License, or |
14 : | * (at your option) any later version. | ||
15 : | * | ||
16 : | * This program is distributed in the hope that it will be useful, | ||
17 : | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
18 : | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
19 : | * GNU General Public License for more details. | ||
20 : | * | ||
21 : | * You should have received a copy of the GNU General Public License | ||
22 : | * along with this program; if not, write to the Free Software | ||
23 : | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
24 : | Isibaar | 1.1 | * |
25 : | edgomez | 1.43 | * Under section 8 of the GNU General Public License, the copyright |
26 : | * holders of XVID explicitly forbid distribution in the following | ||
27 : | * countries: | ||
28 : | * | ||
29 : | * - Japan | ||
30 : | * - United States of America | ||
31 : | * | ||
32 : | * Linking XviD statically or dynamically with other modules is making a | ||
33 : | * combined work based on XviD. Thus, the terms and conditions of the | ||
34 : | * GNU General Public License cover the whole combination. | ||
35 : | * | ||
36 : | * As a special exception, the copyright holders of XviD give you | ||
37 : | * permission to link XviD with independent modules that communicate with | ||
38 : | * XviD solely through the VFW1.1 and DShow interfaces, regardless of the | ||
39 : | * license terms of these independent modules, and to copy and distribute | ||
40 : | * the resulting combined work under terms of your choice, provided that | ||
41 : | * every copy of the combined work is accompanied by a complete copy of | ||
42 : | * the source code of XviD (the version of XviD used to produce the | ||
43 : | * combined work), being distributed under the terms of the GNU General | ||
44 : | * Public License plus this exception. An independent module is a module | ||
45 : | * which is not derived from or based on XviD. | ||
46 : | * | ||
47 : | * Note that people who make modified versions of XviD are not obligated | ||
48 : | * to grant this special exception for their modified versions; it is | ||
49 : | * their choice whether to do so. The GNU General Public License gives | ||
50 : | * permission to release a modified version without this exception; this | ||
51 : | * exception also makes it possible to release a modified version which | ||
52 : | * carries forward this exception. | ||
53 : | edgomez | 1.12 | * |
54 : | edgomez | 1.44 | * $Id: decoder.c,v 1.43 2002/11/16 23:38:15 edgomez Exp $ |
55 : | Isibaar | 1.1 | * |
56 : | *************************************************************************/ | ||
57 : | |||
58 : | #include <stdlib.h> | ||
59 : | edgomez | 1.12 | #include <string.h> |
60 : | Isibaar | 1.1 | |
61 : | chenm001 | 1.27 | #ifdef BFRAMES_DEC_DEBUG |
62 : | #define BFRAMES_DEC | ||
63 : | #endif | ||
64 : | |||
65 : | Isibaar | 1.1 | #include "xvid.h" |
66 : | #include "portab.h" | ||
67 : | |||
68 : | #include "decoder.h" | ||
69 : | #include "bitstream/bitstream.h" | ||
70 : | #include "bitstream/mbcoding.h" | ||
71 : | |||
72 : | #include "quant/quant_h263.h" | ||
73 : | #include "quant/quant_mpeg4.h" | ||
74 : | #include "dct/idct.h" | ||
75 : | #include "dct/fdct.h" | ||
76 : | #include "utils/mem_transfer.h" | ||
77 : | #include "image/interpolate8x8.h" | ||
78 : | |||
79 : | #include "bitstream/mbcoding.h" | ||
80 : | #include "prediction/mbprediction.h" | ||
81 : | #include "utils/timer.h" | ||
82 : | #include "utils/emms.h" | ||
83 : | |||
84 : | #include "image/image.h" | ||
85 : | #include "image/colorspace.h" | ||
86 : | Isibaar | 1.3 | #include "utils/mem_align.h" |
87 : | Isibaar | 1.1 | |
88 : | edgomez | 1.19 | int |
89 : | decoder_create(XVID_DEC_PARAM * param) | ||
90 : | Isibaar | 1.1 | { |
91 : | edgomez | 1.19 | DECODER *dec; |
92 : | Isibaar | 1.1 | |
93 : | Isibaar | 1.4 | dec = xvid_malloc(sizeof(DECODER), CACHE_LINE); |
94 : | edgomez | 1.19 | if (dec == NULL) { |
95 : | Isibaar | 1.1 | return XVID_ERR_MEMORY; |
96 : | } | ||
97 : | param->handle = dec; | ||
98 : | |||
99 : | dec->width = param->width; | ||
100 : | dec->height = param->height; | ||
101 : | |||
102 : | dec->mb_width = (dec->width + 15) / 16; | ||
103 : | dec->mb_height = (dec->height + 15) / 16; | ||
104 : | |||
105 : | dec->edged_width = 16 * dec->mb_width + 2 * EDGE_SIZE; | ||
106 : | dec->edged_height = 16 * dec->mb_height + 2 * EDGE_SIZE; | ||
107 : | Isibaar | 1.20 | dec->low_delay = 0; |
108 : | edgomez | 1.19 | |
109 : | if (image_create(&dec->cur, dec->edged_width, dec->edged_height)) { | ||
110 : | Isibaar | 1.3 | xvid_free(dec); |
111 : | Isibaar | 1.1 | return XVID_ERR_MEMORY; |
112 : | } | ||
113 : | |||
114 : | edgomez | 1.19 | if (image_create(&dec->refn[0], dec->edged_width, dec->edged_height)) { |
115 : | Isibaar | 1.1 | image_destroy(&dec->cur, dec->edged_width, dec->edged_height); |
116 : | Isibaar | 1.3 | xvid_free(dec); |
117 : | Isibaar | 1.1 | return XVID_ERR_MEMORY; |
118 : | } | ||
119 : | edgomez | 1.44 | /* add by chenm001 <chenm001@163.com> */ |
120 : | /* for support B-frame to reference last 2 frame */ | ||
121 : | edgomez | 1.19 | if (image_create(&dec->refn[1], dec->edged_width, dec->edged_height)) { |
122 : | chenm001 | 1.11 | image_destroy(&dec->cur, dec->edged_width, dec->edged_height); |
123 : | image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); | ||
124 : | xvid_free(dec); | ||
125 : | return XVID_ERR_MEMORY; | ||
126 : | } | ||
127 : | edgomez | 1.19 | if (image_create(&dec->refn[2], dec->edged_width, dec->edged_height)) { |
128 : | chenm001 | 1.14 | image_destroy(&dec->cur, dec->edged_width, dec->edged_height); |
129 : | image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); | ||
130 : | image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); | ||
131 : | xvid_free(dec); | ||
132 : | return XVID_ERR_MEMORY; | ||
133 : | } | ||
134 : | Isibaar | 1.1 | |
135 : | edgomez | 1.19 | dec->mbs = |
136 : | xvid_malloc(sizeof(MACROBLOCK) * dec->mb_width * dec->mb_height, | ||
137 : | CACHE_LINE); | ||
138 : | if (dec->mbs == NULL) { | ||
139 : | Isibaar | 1.1 | image_destroy(&dec->cur, dec->edged_width, dec->edged_height); |
140 : | chenm001 | 1.14 | image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); |
141 : | image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); | ||
142 : | image_destroy(&dec->refn[2], dec->edged_width, dec->edged_height); | ||
143 : | xvid_free(dec); | ||
144 : | return XVID_ERR_MEMORY; | ||
145 : | } | ||
146 : | Isibaar | 1.20 | |
147 : | memset(dec->mbs, 0, sizeof(MACROBLOCK) * dec->mb_width * dec->mb_height); | ||
148 : | |||
149 : | edgomez | 1.44 | /* add by chenm001 <chenm001@163.com> */ |
150 : | /* for skip MB flag */ | ||
151 : | edgomez | 1.19 | dec->last_mbs = |
152 : | xvid_malloc(sizeof(MACROBLOCK) * dec->mb_width * dec->mb_height, | ||
153 : | CACHE_LINE); | ||
154 : | if (dec->last_mbs == NULL) { | ||
155 : | chenm001 | 1.14 | xvid_free(dec->mbs); |
156 : | image_destroy(&dec->cur, dec->edged_width, dec->edged_height); | ||
157 : | image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); | ||
158 : | image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); | ||
159 : | image_destroy(&dec->refn[2], dec->edged_width, dec->edged_height); | ||
160 : | Isibaar | 1.3 | xvid_free(dec); |
161 : | Isibaar | 1.1 | return XVID_ERR_MEMORY; |
162 : | } | ||
163 : | Isibaar | 1.20 | |
164 : | memset(dec->last_mbs, 0, sizeof(MACROBLOCK) * dec->mb_width * dec->mb_height); | ||
165 : | Isibaar | 1.1 | |
166 : | init_timer(); | ||
167 : | |||
168 : | edgomez | 1.44 | /* add by chenm001 <chenm001@163.com> */ |
169 : | /* for support B-frame to save reference frame's time */ | ||
170 : | chenm001 | 1.14 | dec->frames = -1; |
171 : | dec->time = dec->time_base = dec->last_time_base = 0; | ||
172 : | edgomez | 1.19 | |
173 : | Isibaar | 1.1 | return XVID_ERR_OK; |
174 : | } | ||
175 : | |||
176 : | |||
177 : | edgomez | 1.19 | int |
178 : | decoder_destroy(DECODER * dec) | ||
179 : | Isibaar | 1.1 | { |
180 : | chenm001 | 1.14 | xvid_free(dec->last_mbs); |
181 : | Isibaar | 1.3 | xvid_free(dec->mbs); |
182 : | chenm001 | 1.11 | image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); |
183 : | chenm001 | 1.14 | image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); |
184 : | image_destroy(&dec->refn[2], dec->edged_width, dec->edged_height); | ||
185 : | Isibaar | 1.1 | image_destroy(&dec->cur, dec->edged_width, dec->edged_height); |
186 : | Isibaar | 1.3 | xvid_free(dec); |
187 : | Isibaar | 1.1 | |
188 : | write_timer(); | ||
189 : | return XVID_ERR_OK; | ||
190 : | } | ||
191 : | |||
192 : | |||
193 : | |||
194 : | edgomez | 1.19 | static const int32_t dquant_table[4] = { |
195 : | Isibaar | 1.1 | -1, -2, 1, 2 |
196 : | }; | ||
197 : | |||
198 : | |||
199 : | chenm001 | 1.14 | |
200 : | |||
201 : | edgomez | 1.44 | /* decode an intra macroblock */ |
202 : | Isibaar | 1.1 | |
203 : | edgomez | 1.19 | void |
204 : | decoder_mbintra(DECODER * dec, | ||
205 : | MACROBLOCK * pMB, | ||
206 : | const uint32_t x_pos, | ||
207 : | const uint32_t y_pos, | ||
208 : | const uint32_t acpred_flag, | ||
209 : | const uint32_t cbp, | ||
210 : | Bitstream * bs, | ||
211 : | const uint32_t quant, | ||
212 : | chenm001 | 1.26 | const uint32_t intra_dc_threshold, |
213 : | const unsigned int bound) | ||
214 : | Isibaar | 1.1 | { |
215 : | edgomez | 1.7 | |
216 : | DECLARE_ALIGNED_MATRIX(block, 6, 64, int16_t, CACHE_LINE); | ||
217 : | edgomez | 1.19 | DECLARE_ALIGNED_MATRIX(data, 6, 64, int16_t, CACHE_LINE); |
218 : | edgomez | 1.7 | |
219 : | h | 1.8 | uint32_t stride = dec->edged_width; |
220 : | uint32_t stride2 = stride / 2; | ||
221 : | uint32_t next_block = stride * 8; | ||
222 : | h | 1.5 | uint32_t i; |
223 : | uint32_t iQuant = pMB->quant; | ||
224 : | uint8_t *pY_Cur, *pU_Cur, *pV_Cur; | ||
225 : | |||
226 : | edgomez | 1.7 | pY_Cur = dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); |
227 : | h | 1.8 | pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); |
228 : | pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); | ||
229 : | edgomez | 1.7 | |
230 : | edgomez | 1.44 | memset(block, 0, 6 * 64 * sizeof(int16_t)); /* clear */ |
231 : | h | 1.5 | |
232 : | edgomez | 1.19 | for (i = 0; i < 6; i++) { |
233 : | h | 1.5 | uint32_t iDcScaler = get_dc_scaler(iQuant, i < 4); |
234 : | Isibaar | 1.1 | int16_t predictors[8]; |
235 : | int start_coeff; | ||
236 : | |||
237 : | start_timer(); | ||
238 : | edgomez | 1.19 | predict_acdc(dec->mbs, x_pos, y_pos, dec->mb_width, i, &block[i * 64], |
239 : | chenm001 | 1.26 | iQuant, iDcScaler, predictors, bound); |
240 : | edgomez | 1.19 | if (!acpred_flag) { |
241 : | h | 1.5 | pMB->acpred_directions[i] = 0; |
242 : | Isibaar | 1.1 | } |
243 : | stop_prediction_timer(); | ||
244 : | |||
245 : | edgomez | 1.19 | if (quant < intra_dc_threshold) { |
246 : | Isibaar | 1.1 | int dc_size; |
247 : | int dc_dif; | ||
248 : | |||
249 : | edgomez | 1.19 | dc_size = i < 4 ? get_dc_size_lum(bs) : get_dc_size_chrom(bs); |
250 : | dc_dif = dc_size ? get_dc_dif(bs, dc_size) : 0; | ||
251 : | Isibaar | 1.1 | |
252 : | edgomez | 1.19 | if (dc_size > 8) { |
253 : | edgomez | 1.44 | BitstreamSkip(bs, 1); /* marker */ |
254 : | Isibaar | 1.1 | } |
255 : | edgomez | 1.19 | |
256 : | block[i * 64 + 0] = dc_dif; | ||
257 : | Isibaar | 1.1 | start_coeff = 1; |
258 : | chenm001 | 1.26 | |
259 : | DPRINTF(DPRINTF_COEFF,"block[0] %i", dc_dif); | ||
260 : | edgomez | 1.19 | } else { |
261 : | Isibaar | 1.1 | start_coeff = 0; |
262 : | } | ||
263 : | |||
264 : | start_timer(); | ||
265 : | edgomez | 1.44 | if (cbp & (1 << (5 - i))) /* coded */ |
266 : | Isibaar | 1.1 | { |
267 : | edgomez | 1.19 | get_intra_block(bs, &block[i * 64], pMB->acpred_directions[i], |
268 : | start_coeff); | ||
269 : | Isibaar | 1.1 | } |
270 : | stop_coding_timer(); | ||
271 : | |||
272 : | start_timer(); | ||
273 : | edgomez | 1.19 | add_acdc(pMB, i, &block[i * 64], iDcScaler, predictors); |
274 : | Isibaar | 1.1 | stop_prediction_timer(); |
275 : | |||
276 : | start_timer(); | ||
277 : | edgomez | 1.19 | if (dec->quant_type == 0) { |
278 : | dequant_intra(&data[i * 64], &block[i * 64], iQuant, iDcScaler); | ||
279 : | } else { | ||
280 : | dequant4_intra(&data[i * 64], &block[i * 64], iQuant, iDcScaler); | ||
281 : | Isibaar | 1.1 | } |
282 : | stop_iquant_timer(); | ||
283 : | |||
284 : | start_timer(); | ||
285 : | edgomez | 1.19 | idct(&data[i * 64]); |
286 : | Isibaar | 1.1 | stop_idct_timer(); |
287 : | h | 1.5 | } |
288 : | Isibaar | 1.1 | |
289 : | edgomez | 1.19 | if (dec->interlacing && pMB->field_dct) { |
290 : | h | 1.8 | next_block = stride; |
291 : | stride *= 2; | ||
292 : | Isibaar | 1.1 | } |
293 : | h | 1.5 | |
294 : | start_timer(); | ||
295 : | edgomez | 1.19 | transfer_16to8copy(pY_Cur, &data[0 * 64], stride); |
296 : | transfer_16to8copy(pY_Cur + 8, &data[1 * 64], stride); | ||
297 : | transfer_16to8copy(pY_Cur + next_block, &data[2 * 64], stride); | ||
298 : | transfer_16to8copy(pY_Cur + 8 + next_block, &data[3 * 64], stride); | ||
299 : | transfer_16to8copy(pU_Cur, &data[4 * 64], stride2); | ||
300 : | transfer_16to8copy(pV_Cur, &data[5 * 64], stride2); | ||
301 : | h | 1.5 | stop_transfer_timer(); |
302 : | Isibaar | 1.1 | } |
303 : | |||
304 : | |||
305 : | |||
306 : | |||
307 : | |||
308 : | #define SIGN(X) (((X)>0)?1:-1) | ||
309 : | #define ABS(X) (((X)>0)?(X):-(X)) | ||
310 : | static const uint32_t roundtab[16] = | ||
311 : | edgomez | 1.19 | { 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2 }; |
312 : | Isibaar | 1.1 | |
313 : | |||
314 : | edgomez | 1.44 | /* decode an inter macroblock */ |
315 : | Isibaar | 1.1 | |
316 : | edgomez | 1.19 | void |
317 : | decoder_mbinter(DECODER * dec, | ||
318 : | const MACROBLOCK * pMB, | ||
319 : | const uint32_t x_pos, | ||
320 : | const uint32_t y_pos, | ||
321 : | const uint32_t acpred_flag, | ||
322 : | const uint32_t cbp, | ||
323 : | Bitstream * bs, | ||
324 : | const uint32_t quant, | ||
325 : | const uint32_t rounding) | ||
326 : | Isibaar | 1.1 | { |
327 : | edgomez | 1.7 | |
328 : | edgomez | 1.19 | DECLARE_ALIGNED_MATRIX(block, 6, 64, int16_t, CACHE_LINE); |
329 : | edgomez | 1.7 | DECLARE_ALIGNED_MATRIX(data, 6, 64, int16_t, CACHE_LINE); |
330 : | h | 1.5 | |
331 : | h | 1.8 | uint32_t stride = dec->edged_width; |
332 : | uint32_t stride2 = stride / 2; | ||
333 : | uint32_t next_block = stride * 8; | ||
334 : | edgomez | 1.7 | uint32_t i; |
335 : | uint32_t iQuant = pMB->quant; | ||
336 : | h | 1.5 | uint8_t *pY_Cur, *pU_Cur, *pV_Cur; |
337 : | Isibaar | 1.1 | int uv_dx, uv_dy; |
338 : | |||
339 : | edgomez | 1.7 | pY_Cur = dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); |
340 : | h | 1.8 | pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); |
341 : | pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); | ||
342 : | h | 1.5 | |
343 : | edgomez | 1.19 | if (pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q) { |
344 : | h | 1.5 | uv_dx = pMB->mvs[0].x; |
345 : | uv_dy = pMB->mvs[0].y; | ||
346 : | Isibaar | 1.1 | |
347 : | Isibaar | 1.34 | if (dec->quarterpel) |
348 : | { | ||
349 : | uv_dx = (uv_dx >> 1) | (uv_dx & 1); | ||
350 : | uv_dy = (uv_dy >> 1) | (uv_dy & 1); | ||
351 : | } | ||
352 : | |||
353 : | Isibaar | 1.1 | uv_dx = (uv_dx & 3) ? (uv_dx >> 1) | 1 : uv_dx / 2; |
354 : | uv_dy = (uv_dy & 3) ? (uv_dy >> 1) | 1 : uv_dy / 2; | ||
355 : | edgomez | 1.19 | } else { |
356 : | Isibaar | 1.1 | int sum; |
357 : | Isibaar | 1.34 | sum = pMB->mvs[0].x + pMB->mvs[1].x + pMB->mvs[2].x + pMB->mvs[3].x; |
358 : | edgomez | 1.19 | |
359 : | Isibaar | 1.34 | if (dec->quarterpel) |
360 : | { | ||
361 : | sum /= 2; | ||
362 : | } | ||
363 : | |||
364 : | uv_dx = (sum == 0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + (ABS(sum) / 16) * 2)); | ||
365 : | Isibaar | 1.1 | |
366 : | h | 1.5 | sum = pMB->mvs[0].y + pMB->mvs[1].y + pMB->mvs[2].y + pMB->mvs[3].y; |
367 : | Isibaar | 1.34 | |
368 : | if (dec->quarterpel) | ||
369 : | { | ||
370 : | sum /= 2; | ||
371 : | } | ||
372 : | |||
373 : | uv_dy = (sum == 0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + (ABS(sum) / 16) * 2)); | ||
374 : | Isibaar | 1.1 | } |
375 : | |||
376 : | start_timer(); | ||
377 : | Isibaar | 1.34 | if(dec->quarterpel) { |
378 : | edgomez | 1.39 | DPRINTF(DPRINTF_DEBUG, "QUARTERPEL\n"); |
379 : | Isibaar | 1.34 | interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y, 16*x_pos, 16*y_pos, |
380 : | pMB->mvs[0].x, pMB->mvs[0].y, stride, rounding); | ||
381 : | interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y, 16*x_pos + 8, 16*y_pos, | ||
382 : | pMB->mvs[1].x, pMB->mvs[1].y, stride, rounding); | ||
383 : | interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y, 16*x_pos, 16*y_pos + 8, | ||
384 : | pMB->mvs[2].x, pMB->mvs[2].y, stride, rounding); | ||
385 : | interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y, 16*x_pos + 8, 16*y_pos + 8, | ||
386 : | pMB->mvs[3].x, pMB->mvs[3].y, stride, rounding); | ||
387 : | } | ||
388 : | else { | ||
389 : | interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16*x_pos, 16*y_pos, | ||
390 : | pMB->mvs[0].x, pMB->mvs[0].y, stride, rounding); | ||
391 : | interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16*x_pos + 8, 16*y_pos, | ||
392 : | pMB->mvs[1].x, pMB->mvs[1].y, stride, rounding); | ||
393 : | interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16*x_pos, 16*y_pos + 8, | ||
394 : | pMB->mvs[2].x, pMB->mvs[2].y, stride, rounding); | ||
395 : | interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16*x_pos + 8, 16*y_pos + 8, | ||
396 : | pMB->mvs[3].x, pMB->mvs[3].y, stride, rounding); | ||
397 : | } | ||
398 : | |||
399 : | edgomez | 1.19 | interpolate8x8_switch(dec->cur.u, dec->refn[0].u, 8 * x_pos, 8 * y_pos, |
400 : | uv_dx, uv_dy, stride2, rounding); | ||
401 : | interpolate8x8_switch(dec->cur.v, dec->refn[0].v, 8 * x_pos, 8 * y_pos, | ||
402 : | uv_dx, uv_dy, stride2, rounding); | ||
403 : | Isibaar | 1.1 | stop_comp_timer(); |
404 : | |||
405 : | edgomez | 1.19 | for (i = 0; i < 6; i++) { |
406 : | edgomez | 1.44 | if (cbp & (1 << (5 - i))) /* coded */ |
407 : | Isibaar | 1.1 | { |
408 : | edgomez | 1.44 | memset(&block[i * 64], 0, 64 * sizeof(int16_t)); /* clear */ |
409 : | Isibaar | 1.1 | |
410 : | start_timer(); | ||
411 : | edgomez | 1.19 | get_inter_block(bs, &block[i * 64]); |
412 : | Isibaar | 1.1 | stop_coding_timer(); |
413 : | |||
414 : | start_timer(); | ||
415 : | edgomez | 1.19 | if (dec->quant_type == 0) { |
416 : | dequant_inter(&data[i * 64], &block[i * 64], iQuant); | ||
417 : | } else { | ||
418 : | dequant4_inter(&data[i * 64], &block[i * 64], iQuant); | ||
419 : | Isibaar | 1.1 | } |
420 : | stop_iquant_timer(); | ||
421 : | |||
422 : | start_timer(); | ||
423 : | edgomez | 1.19 | idct(&data[i * 64]); |
424 : | Isibaar | 1.1 | stop_idct_timer(); |
425 : | h | 1.5 | } |
426 : | } | ||
427 : | Isibaar | 1.1 | |
428 : | edgomez | 1.19 | if (dec->interlacing && pMB->field_dct) { |
429 : | h | 1.8 | next_block = stride; |
430 : | stride *= 2; | ||
431 : | Isibaar | 1.1 | } |
432 : | h | 1.5 | |
433 : | start_timer(); | ||
434 : | if (cbp & 32) | ||
435 : | edgomez | 1.19 | transfer_16to8add(pY_Cur, &data[0 * 64], stride); |
436 : | h | 1.5 | if (cbp & 16) |
437 : | edgomez | 1.19 | transfer_16to8add(pY_Cur + 8, &data[1 * 64], stride); |
438 : | h | 1.5 | if (cbp & 8) |
439 : | edgomez | 1.19 | transfer_16to8add(pY_Cur + next_block, &data[2 * 64], stride); |
440 : | h | 1.5 | if (cbp & 4) |
441 : | edgomez | 1.19 | transfer_16to8add(pY_Cur + 8 + next_block, &data[3 * 64], stride); |
442 : | h | 1.5 | if (cbp & 2) |
443 : | edgomez | 1.19 | transfer_16to8add(pU_Cur, &data[4 * 64], stride2); |
444 : | h | 1.5 | if (cbp & 1) |
445 : | edgomez | 1.19 | transfer_16to8add(pV_Cur, &data[5 * 64], stride2); |
446 : | h | 1.5 | stop_transfer_timer(); |
447 : | Isibaar | 1.1 | } |
448 : | |||
449 : | |||
450 : | edgomez | 1.19 | void |
451 : | decoder_iframe(DECODER * dec, | ||
452 : | Bitstream * bs, | ||
453 : | int quant, | ||
454 : | int intra_dc_threshold) | ||
455 : | Isibaar | 1.1 | { |
456 : | chenm001 | 1.26 | uint32_t bound; |
457 : | uint32_t x, y; | ||
458 : | chenm001 | 1.25 | |
459 : | chenm001 | 1.26 | bound = 0; |
460 : | edgomez | 1.7 | |
461 : | edgomez | 1.19 | for (y = 0; y < dec->mb_height; y++) { |
462 : | for (x = 0; x < dec->mb_width; x++) { | ||
463 : | chenm001 | 1.26 | MACROBLOCK *mb; |
464 : | Isibaar | 1.1 | uint32_t mcbpc; |
465 : | uint32_t cbpc; | ||
466 : | uint32_t acpred_flag; | ||
467 : | uint32_t cbpy; | ||
468 : | uint32_t cbp; | ||
469 : | |||
470 : | chenm001 | 1.26 | while (BitstreamShowBits(bs, 9) == 1) |
471 : | BitstreamSkip(bs, 9); | ||
472 : | |||
473 : | if (check_resync_marker(bs, 0)) | ||
474 : | { | ||
475 : | bound = read_video_packet_header(bs, 0, &quant); | ||
476 : | x = bound % dec->mb_width; | ||
477 : | y = bound / dec->mb_width; | ||
478 : | } | ||
479 : | mb = &dec->mbs[y * dec->mb_width + x]; | ||
480 : | |||
481 : | DPRINTF(DPRINTF_MB, "macroblock (%i,%i) %08x", x, y, BitstreamShowBits(bs, 32)); | ||
482 : | |||
483 : | Isibaar | 1.1 | mcbpc = get_mcbpc_intra(bs); |
484 : | mb->mode = mcbpc & 7; | ||
485 : | cbpc = (mcbpc >> 4); | ||
486 : | |||
487 : | acpred_flag = BitstreamGetBit(bs); | ||
488 : | |||
489 : | cbpy = get_cbpy(bs, 1); | ||
490 : | cbp = (cbpy << 2) | cbpc; | ||
491 : | |||
492 : | edgomez | 1.19 | if (mb->mode == MODE_INTRA_Q) { |
493 : | quant += dquant_table[BitstreamGetBits(bs, 2)]; | ||
494 : | if (quant > 31) { | ||
495 : | Isibaar | 1.1 | quant = 31; |
496 : | edgomez | 1.19 | } else if (quant < 1) { |
497 : | Isibaar | 1.1 | quant = 1; |
498 : | } | ||
499 : | } | ||
500 : | mb->quant = quant; | ||
501 : | chenm001 | 1.30 | mb->mvs[0].x = mb->mvs[0].y = |
502 : | mb->mvs[1].x = mb->mvs[1].y = | ||
503 : | mb->mvs[2].x = mb->mvs[2].y = | ||
504 : | mb->mvs[3].x = mb->mvs[3].y =0; | ||
505 : | h | 1.5 | |
506 : | edgomez | 1.19 | if (dec->interlacing) { |
507 : | h | 1.5 | mb->field_dct = BitstreamGetBit(bs); |
508 : | edgomez | 1.39 | DPRINTF(DPRINTF_DEBUG, "deci: field_dct: %d", mb->field_dct); |
509 : | h | 1.5 | } |
510 : | Isibaar | 1.1 | |
511 : | edgomez | 1.19 | decoder_mbintra(dec, mb, x, y, acpred_flag, cbp, bs, quant, |
512 : | chenm001 | 1.26 | intra_dc_threshold, bound); |
513 : | Isibaar | 1.1 | } |
514 : | albeu | 1.32 | if(dec->out_frm) |
515 : | output_slice(&dec->cur, dec->edged_width,dec->width,dec->out_frm,0,y,dec->mb_width); | ||
516 : | |||
517 : | Isibaar | 1.1 | } |
518 : | edgomez | 1.7 | |
519 : | Isibaar | 1.1 | } |
520 : | |||
521 : | |||
522 : | edgomez | 1.19 | void |
523 : | get_motion_vector(DECODER * dec, | ||
524 : | Bitstream * bs, | ||
525 : | int x, | ||
526 : | int y, | ||
527 : | int k, | ||
528 : | VECTOR * mv, | ||
529 : | chenm001 | 1.26 | int fcode, |
530 : | const int bound) | ||
531 : | Isibaar | 1.1 | { |
532 : | edgomez | 1.7 | |
533 : | Isibaar | 1.1 | int scale_fac = 1 << (fcode - 1); |
534 : | int high = (32 * scale_fac) - 1; | ||
535 : | int low = ((-32) * scale_fac); | ||
536 : | int range = (64 * scale_fac); | ||
537 : | |||
538 : | chenm001 | 1.26 | VECTOR pmv; |
539 : | Isibaar | 1.1 | int mv_x, mv_y; |
540 : | |||
541 : | chenm001 | 1.26 | pmv = get_pmv2(dec->mbs, dec->mb_width, bound, x, y, k); |
542 : | Isibaar | 1.1 | |
543 : | mv_x = get_mv(bs, fcode); | ||
544 : | mv_y = get_mv(bs, fcode); | ||
545 : | edgomez | 1.19 | |
546 : | chenm001 | 1.26 | DPRINTF(DPRINTF_MV,"mv_diff (%i,%i) pred (%i,%i)", mv_x, mv_y, pmv.x, pmv.y); |
547 : | |||
548 : | mv_x += pmv.x; | ||
549 : | mv_y += pmv.y; | ||
550 : | Isibaar | 1.1 | |
551 : | edgomez | 1.19 | if (mv_x < low) { |
552 : | Isibaar | 1.1 | mv_x += range; |
553 : | edgomez | 1.19 | } else if (mv_x > high) { |
554 : | Isibaar | 1.1 | mv_x -= range; |
555 : | } | ||
556 : | |||
557 : | edgomez | 1.19 | if (mv_y < low) { |
558 : | Isibaar | 1.1 | mv_y += range; |
559 : | edgomez | 1.19 | } else if (mv_y > high) { |
560 : | Isibaar | 1.1 | mv_y -= range; |
561 : | } | ||
562 : | |||
563 : | mv->x = mv_x; | ||
564 : | mv->y = mv_y; | ||
565 : | |||
566 : | } | ||
567 : | |||
568 : | |||
569 : | edgomez | 1.19 | void |
570 : | decoder_pframe(DECODER * dec, | ||
571 : | Bitstream * bs, | ||
572 : | int rounding, | ||
573 : | int quant, | ||
574 : | int fcode, | ||
575 : | int intra_dc_threshold) | ||
576 : | Isibaar | 1.1 | { |
577 : | edgomez | 1.7 | |
578 : | Isibaar | 1.1 | uint32_t x, y; |
579 : | chenm001 | 1.26 | uint32_t bound; |
580 : | albeu | 1.32 | int cp_mb, st_mb; |
581 : | Isibaar | 1.1 | |
582 : | start_timer(); | ||
583 : | edgomez | 1.19 | image_setedges(&dec->refn[0], dec->edged_width, dec->edged_height, |
584 : | h | 1.41 | dec->width, dec->height); |
585 : | Isibaar | 1.1 | stop_edges_timer(); |
586 : | |||
587 : | chenm001 | 1.26 | bound = 0; |
588 : | |||
589 : | edgomez | 1.19 | for (y = 0; y < dec->mb_height; y++) { |
590 : | albeu | 1.32 | cp_mb = st_mb = 0; |
591 : | edgomez | 1.19 | for (x = 0; x < dec->mb_width; x++) { |
592 : | chenm001 | 1.26 | MACROBLOCK *mb; |
593 : | |||
594 : | edgomez | 1.44 | /* skip stuffing */ |
595 : | chenm001 | 1.26 | while (BitstreamShowBits(bs, 10) == 1) |
596 : | BitstreamSkip(bs, 10); | ||
597 : | |||
598 : | if (check_resync_marker(bs, fcode - 1)) | ||
599 : | { | ||
600 : | bound = read_video_packet_header(bs, fcode - 1, &quant); | ||
601 : | x = bound % dec->mb_width; | ||
602 : | y = bound / dec->mb_width; | ||
603 : | } | ||
604 : | mb = &dec->mbs[y * dec->mb_width + x]; | ||
605 : | |||
606 : | DPRINTF(DPRINTF_MB, "macroblock (%i,%i) %08x", x, y, BitstreamShowBits(bs, 32)); | ||
607 : | suxen_drol | 1.23 | |
608 : | edgomez | 1.44 | /*if (!(dec->mb_skip[y*dec->mb_width + x]=BitstreamGetBit(bs))) not_coded */ |
609 : | if (!(BitstreamGetBit(bs))) /* not_coded */ | ||
610 : | Isibaar | 1.1 | { |
611 : | uint32_t mcbpc; | ||
612 : | uint32_t cbpc; | ||
613 : | uint32_t acpred_flag; | ||
614 : | uint32_t cbpy; | ||
615 : | uint32_t cbp; | ||
616 : | uint32_t intra; | ||
617 : | |||
618 : | albeu | 1.32 | cp_mb++; |
619 : | Isibaar | 1.1 | mcbpc = get_mcbpc_inter(bs); |
620 : | mb->mode = mcbpc & 7; | ||
621 : | cbpc = (mcbpc >> 4); | ||
622 : | chenm001 | 1.26 | |
623 : | DPRINTF(DPRINTF_MB, "mode %i", mb->mode); | ||
624 : | DPRINTF(DPRINTF_MB, "cbpc %i", cbpc); | ||
625 : | edgomez | 1.2 | acpred_flag = 0; |
626 : | Isibaar | 1.1 | |
627 : | intra = (mb->mode == MODE_INTRA || mb->mode == MODE_INTRA_Q); | ||
628 : | edgomez | 1.19 | |
629 : | if (intra) { | ||
630 : | Isibaar | 1.1 | acpred_flag = BitstreamGetBit(bs); |
631 : | } | ||
632 : | |||
633 : | chenm001 | 1.26 | cbpy = get_cbpy(bs, intra); |
634 : | DPRINTF(DPRINTF_MB, "cbpy %i", cbpy); | ||
635 : | chenm001 | 1.25 | |
636 : | Isibaar | 1.1 | cbp = (cbpy << 2) | cbpc; |
637 : | |||
638 : | edgomez | 1.19 | if (mb->mode == MODE_INTER_Q || mb->mode == MODE_INTRA_Q) { |
639 : | chenm001 | 1.26 | int dquant = dquant_table[BitstreamGetBits(bs, 2)]; |
640 : | DPRINTF(DPRINTF_MB, "dquant %i", dquant); | ||
641 : | quant += dquant; | ||
642 : | edgomez | 1.19 | if (quant > 31) { |
643 : | Isibaar | 1.1 | quant = 31; |
644 : | chenm001 | 1.26 | } else if (quant < 1) { |
645 : | Isibaar | 1.1 | quant = 1; |
646 : | } | ||
647 : | chenm001 | 1.26 | DPRINTF(DPRINTF_MB, "quant %i", quant); |
648 : | Isibaar | 1.1 | } |
649 : | mb->quant = quant; | ||
650 : | h | 1.5 | |
651 : | edgomez | 1.19 | if (dec->interlacing) { |
652 : | h | 1.37 | if (cbp || intra) { |
653 : | mb->field_dct = BitstreamGetBit(bs); | ||
654 : | edgomez | 1.39 | DPRINTF(DPRINTF_DEBUG, "decp: field_dct: %d", mb->field_dct); |
655 : | h | 1.37 | } |
656 : | h | 1.5 | |
657 : | edgomez | 1.19 | if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) { |
658 : | h | 1.5 | mb->field_pred = BitstreamGetBit(bs); |
659 : | edgomez | 1.39 | DPRINTF(DPRINTF_DEBUG, "decp: field_pred: %d", mb->field_pred); |
660 : | h | 1.5 | |
661 : | edgomez | 1.19 | if (mb->field_pred) { |
662 : | h | 1.5 | mb->field_for_top = BitstreamGetBit(bs); |
663 : | edgomez | 1.39 | DPRINTF(DPRINTF_DEBUG, "decp: field_for_top: %d", mb->field_for_top); |
664 : | h | 1.5 | mb->field_for_bot = BitstreamGetBit(bs); |
665 : | edgomez | 1.39 | DPRINTF(DPRINTF_DEBUG, "decp: field_for_bot: %d", mb->field_for_bot); |
666 : | h | 1.5 | } |
667 : | } | ||
668 : | } | ||
669 : | |||
670 : | edgomez | 1.19 | if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) { |
671 : | if (dec->interlacing && mb->field_pred) { | ||
672 : | get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], | ||
673 : | chenm001 | 1.26 | fcode, bound); |
674 : | edgomez | 1.19 | get_motion_vector(dec, bs, x, y, 0, &mb->mvs[1], |
675 : | chenm001 | 1.26 | fcode, bound); |
676 : | edgomez | 1.19 | } else { |
677 : | get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], | ||
678 : | chenm001 | 1.26 | fcode, bound); |
679 : | edgomez | 1.19 | mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = |
680 : | mb->mvs[0].x; | ||
681 : | mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = | ||
682 : | mb->mvs[0].y; | ||
683 : | h | 1.5 | } |
684 : | chl | 1.35 | } else if (mb->mode == MODE_INTER4V ) { |
685 : | |||
686 : | chenm001 | 1.26 | get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], fcode, bound); |
687 : | get_motion_vector(dec, bs, x, y, 1, &mb->mvs[1], fcode, bound); | ||
688 : | get_motion_vector(dec, bs, x, y, 2, &mb->mvs[2], fcode, bound); | ||
689 : | get_motion_vector(dec, bs, x, y, 3, &mb->mvs[3], fcode, bound); | ||
690 : | edgomez | 1.44 | } else /* MODE_INTRA, MODE_INTRA_Q */ |
691 : | Isibaar | 1.1 | { |
692 : | edgomez | 1.19 | mb->mvs[0].x = mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = |
693 : | 0; | ||
694 : | mb->mvs[0].y = mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = | ||
695 : | 0; | ||
696 : | decoder_mbintra(dec, mb, x, y, acpred_flag, cbp, bs, quant, | ||
697 : | chenm001 | 1.26 | intra_dc_threshold, bound); |
698 : | Isibaar | 1.1 | continue; |
699 : | } | ||
700 : | |||
701 : | edgomez | 1.19 | decoder_mbinter(dec, mb, x, y, acpred_flag, cbp, bs, quant, |
702 : | rounding); | ||
703 : | edgomez | 1.44 | } else /* not coded */ |
704 : | Isibaar | 1.1 | { |
705 : | edgomez | 1.39 | DPRINTF(DPRINTF_DEBUG, "P-frame MB at (X,Y)=(%d,%d)", x, y); |
706 : | |||
707 : | chenm001 | 1.14 | mb->mode = MODE_NOT_CODED; |
708 : | Isibaar | 1.1 | mb->mvs[0].x = mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = 0; |
709 : | mb->mvs[0].y = mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = 0; | ||
710 : | edgomez | 1.19 | |
711 : | edgomez | 1.44 | /* copy macroblock directly from ref to cur */ |
712 : | Isibaar | 1.1 | |
713 : | start_timer(); | ||
714 : | |||
715 : | edgomez | 1.19 | transfer8x8_copy(dec->cur.y + (16 * y) * dec->edged_width + |
716 : | (16 * x), | ||
717 : | dec->refn[0].y + (16 * y) * dec->edged_width + | ||
718 : | (16 * x), dec->edged_width); | ||
719 : | |||
720 : | transfer8x8_copy(dec->cur.y + (16 * y) * dec->edged_width + | ||
721 : | (16 * x + 8), | ||
722 : | dec->refn[0].y + (16 * y) * dec->edged_width + | ||
723 : | (16 * x + 8), dec->edged_width); | ||
724 : | |||
725 : | transfer8x8_copy(dec->cur.y + (16 * y + 8) * dec->edged_width + | ||
726 : | (16 * x), | ||
727 : | dec->refn[0].y + (16 * y + | ||
728 : | 8) * dec->edged_width + | ||
729 : | (16 * x), dec->edged_width); | ||
730 : | |||
731 : | transfer8x8_copy(dec->cur.y + (16 * y + 8) * dec->edged_width + | ||
732 : | (16 * x + 8), | ||
733 : | dec->refn[0].y + (16 * y + | ||
734 : | 8) * dec->edged_width + | ||
735 : | (16 * x + 8), dec->edged_width); | ||
736 : | |||
737 : | transfer8x8_copy(dec->cur.u + (8 * y) * dec->edged_width / 2 + | ||
738 : | (8 * x), | ||
739 : | dec->refn[0].u + | ||
740 : | (8 * y) * dec->edged_width / 2 + (8 * x), | ||
741 : | dec->edged_width / 2); | ||
742 : | |||
743 : | transfer8x8_copy(dec->cur.v + (8 * y) * dec->edged_width / 2 + | ||
744 : | (8 * x), | ||
745 : | dec->refn[0].v + | ||
746 : | (8 * y) * dec->edged_width / 2 + (8 * x), | ||
747 : | dec->edged_width / 2); | ||
748 : | Isibaar | 1.1 | stop_transfer_timer(); |
749 : | albeu | 1.32 | if(dec->out_frm && cp_mb > 0) { |
750 : | output_slice(&dec->cur, dec->edged_width,dec->width,dec->out_frm,st_mb,y,cp_mb); | ||
751 : | cp_mb = 0; | ||
752 : | } | ||
753 : | st_mb = x+1; | ||
754 : | Isibaar | 1.1 | } |
755 : | } | ||
756 : | albeu | 1.32 | if(dec->out_frm && cp_mb > 0) |
757 : | output_slice(&dec->cur, dec->edged_width,dec->width,dec->out_frm,st_mb,y,cp_mb); | ||
758 : | Isibaar | 1.1 | } |
759 : | } | ||
760 : | |||
761 : | chenm001 | 1.14 | |
762 : | edgomez | 1.44 | /* add by MinChen <chenm001@163.com> */ |
763 : | /* decode B-frame motion vector */ | ||
764 : | edgomez | 1.19 | void |
765 : | get_b_motion_vector(DECODER * dec, | ||
766 : | Bitstream * bs, | ||
767 : | int x, | ||
768 : | int y, | ||
769 : | VECTOR * mv, | ||
770 : | int fcode, | ||
771 : | const VECTOR pmv) | ||
772 : | chenm001 | 1.14 | { |
773 : | int scale_fac = 1 << (fcode - 1); | ||
774 : | int high = (32 * scale_fac) - 1; | ||
775 : | int low = ((-32) * scale_fac); | ||
776 : | int range = (64 * scale_fac); | ||
777 : | |||
778 : | int mv_x, mv_y; | ||
779 : | int pmv_x, pmv_y; | ||
780 : | |||
781 : | pmv_x = pmv.x; | ||
782 : | pmv_y = pmv.y; | ||
783 : | |||
784 : | mv_x = get_mv(bs, fcode); | ||
785 : | mv_y = get_mv(bs, fcode); | ||
786 : | edgomez | 1.19 | |
787 : | chenm001 | 1.14 | mv_x += pmv_x; |
788 : | mv_y += pmv_y; | ||
789 : | |||
790 : | edgomez | 1.19 | if (mv_x < low) { |
791 : | chenm001 | 1.14 | mv_x += range; |
792 : | edgomez | 1.19 | } else if (mv_x > high) { |
793 : | chenm001 | 1.14 | mv_x -= range; |
794 : | } | ||
795 : | |||
796 : | edgomez | 1.19 | if (mv_y < low) { |
797 : | chenm001 | 1.14 | mv_y += range; |
798 : | edgomez | 1.19 | } else if (mv_y > high) { |
799 : | chenm001 | 1.14 | mv_y -= range; |
800 : | } | ||
801 : | |||
802 : | mv->x = mv_x; | ||
803 : | mv->y = mv_y; | ||
804 : | } | ||
805 : | |||
806 : | |||
807 : | edgomez | 1.44 | /* add by MinChen <chenm001@163.com> */ |
808 : | /* decode an B-frame forward & backward inter macroblock */ | ||
809 : | edgomez | 1.19 | void |
810 : | decoder_bf_mbinter(DECODER * dec, | ||
811 : | const MACROBLOCK * pMB, | ||
812 : | const uint32_t x_pos, | ||
813 : | const uint32_t y_pos, | ||
814 : | const uint32_t cbp, | ||
815 : | Bitstream * bs, | ||
816 : | const uint32_t quant, | ||
817 : | const uint8_t ref) | ||
818 : | chenm001 | 1.14 | { |
819 : | |||
820 : | edgomez | 1.19 | DECLARE_ALIGNED_MATRIX(block, 6, 64, int16_t, CACHE_LINE); |
821 : | chenm001 | 1.14 | DECLARE_ALIGNED_MATRIX(data, 6, 64, int16_t, CACHE_LINE); |
822 : | |||
823 : | uint32_t stride = dec->edged_width; | ||
824 : | uint32_t stride2 = stride / 2; | ||
825 : | uint32_t next_block = stride * 8; | ||
826 : | uint32_t i; | ||
827 : | uint32_t iQuant = pMB->quant; | ||
828 : | uint8_t *pY_Cur, *pU_Cur, *pV_Cur; | ||
829 : | int uv_dx, uv_dy; | ||
830 : | |||
831 : | pY_Cur = dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); | ||
832 : | pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); | ||
833 : | pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); | ||
834 : | |||
835 : | chenm001 | 1.30 | |
836 : | edgomez | 1.19 | if (!(pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q)) { |
837 : | chenm001 | 1.14 | uv_dx = pMB->mvs[0].x; |
838 : | uv_dy = pMB->mvs[0].y; | ||
839 : | |||
840 : | uv_dx = (uv_dx & 3) ? (uv_dx >> 1) | 1 : uv_dx / 2; | ||
841 : | uv_dy = (uv_dy & 3) ? (uv_dy >> 1) | 1 : uv_dy / 2; | ||
842 : | edgomez | 1.19 | } else { |
843 : | chenm001 | 1.14 | int sum; |
844 : | edgomez | 1.19 | |
845 : | chenm001 | 1.14 | sum = pMB->mvs[0].x + pMB->mvs[1].x + pMB->mvs[2].x + pMB->mvs[3].x; |
846 : | edgomez | 1.19 | uv_dx = |
847 : | (sum == | ||
848 : | 0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + | ||
849 : | (ABS(sum) / 16) * 2)); | ||
850 : | chenm001 | 1.14 | |
851 : | sum = pMB->mvs[0].y + pMB->mvs[1].y + pMB->mvs[2].y + pMB->mvs[3].y; | ||
852 : | edgomez | 1.19 | uv_dy = |
853 : | (sum == | ||
854 : | 0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + | ||
855 : | (ABS(sum) / 16) * 2)); | ||
856 : | chenm001 | 1.14 | } |
857 : | |||
858 : | start_timer(); | ||
859 : | edgomez | 1.19 | interpolate8x8_switch(dec->cur.y, dec->refn[ref].y, 16 * x_pos, 16 * y_pos, |
860 : | pMB->mvs[0].x, pMB->mvs[0].y, stride, 0); | ||
861 : | interpolate8x8_switch(dec->cur.y, dec->refn[ref].y, 16 * x_pos + 8, | ||
862 : | 16 * y_pos, pMB->mvs[1].x, pMB->mvs[1].y, stride, 0); | ||
863 : | interpolate8x8_switch(dec->cur.y, dec->refn[ref].y, 16 * x_pos, | ||
864 : | 16 * y_pos + 8, pMB->mvs[2].x, pMB->mvs[2].y, stride, | ||
865 : | 0); | ||
866 : | interpolate8x8_switch(dec->cur.y, dec->refn[ref].y, 16 * x_pos + 8, | ||
867 : | 16 * y_pos + 8, pMB->mvs[3].x, pMB->mvs[3].y, stride, | ||
868 : | 0); | ||
869 : | interpolate8x8_switch(dec->cur.u, dec->refn[ref].u, 8 * x_pos, 8 * y_pos, | ||
870 : | uv_dx, uv_dy, stride2, 0); | ||
871 : | interpolate8x8_switch(dec->cur.v, dec->refn[ref].v, 8 * x_pos, 8 * y_pos, | ||
872 : | uv_dx, uv_dy, stride2, 0); | ||
873 : | chenm001 | 1.14 | stop_comp_timer(); |
874 : | |||
875 : | edgomez | 1.19 | for (i = 0; i < 6; i++) { |
876 : | edgomez | 1.44 | if (cbp & (1 << (5 - i))) /* coded */ |
877 : | chenm001 | 1.14 | { |
878 : | edgomez | 1.44 | memset(&block[i * 64], 0, 64 * sizeof(int16_t)); /* clear */ |
879 : | chenm001 | 1.14 | |
880 : | start_timer(); | ||
881 : | edgomez | 1.19 | get_inter_block(bs, &block[i * 64]); |
882 : | chenm001 | 1.14 | stop_coding_timer(); |
883 : | |||
884 : | start_timer(); | ||
885 : | edgomez | 1.19 | if (dec->quant_type == 0) { |
886 : | dequant_inter(&data[i * 64], &block[i * 64], iQuant); | ||
887 : | } else { | ||
888 : | dequant4_inter(&data[i * 64], &block[i * 64], iQuant); | ||
889 : | chenm001 | 1.14 | } |
890 : | stop_iquant_timer(); | ||
891 : | |||
892 : | start_timer(); | ||
893 : | edgomez | 1.19 | idct(&data[i * 64]); |
894 : | chenm001 | 1.14 | stop_idct_timer(); |
895 : | } | ||
896 : | } | ||
897 : | |||
898 : | edgomez | 1.19 | if (dec->interlacing && pMB->field_dct) { |
899 : | chenm001 | 1.14 | next_block = stride; |
900 : | stride *= 2; | ||
901 : | } | ||
902 : | |||
903 : | start_timer(); | ||
904 : | if (cbp & 32) | ||
905 : | edgomez | 1.19 | transfer_16to8add(pY_Cur, &data[0 * 64], stride); |
906 : | chenm001 | 1.14 | if (cbp & 16) |
907 : | edgomez | 1.19 | transfer_16to8add(pY_Cur + 8, &data[1 * 64], stride); |
908 : | chenm001 | 1.14 | if (cbp & 8) |
909 : | edgomez | 1.19 | transfer_16to8add(pY_Cur + next_block, &data[2 * 64], stride); |
910 : | chenm001 | 1.14 | if (cbp & 4) |
911 : | edgomez | 1.19 | transfer_16to8add(pY_Cur + 8 + next_block, &data[3 * 64], stride); |
912 : | chenm001 | 1.14 | if (cbp & 2) |
913 : | edgomez | 1.19 | transfer_16to8add(pU_Cur, &data[4 * 64], stride2); |
914 : | chenm001 | 1.14 | if (cbp & 1) |
915 : | edgomez | 1.19 | transfer_16to8add(pV_Cur, &data[5 * 64], stride2); |
916 : | chenm001 | 1.14 | stop_transfer_timer(); |
917 : | } | ||
918 : | |||
919 : | |||
920 : | edgomez | 1.44 | /* add by MinChen <chenm001@163.com> */ |
921 : | /* decode an B-frame direct & inter macroblock */ | ||
922 : | edgomez | 1.19 | void |
923 : | decoder_bf_interpolate_mbinter(DECODER * dec, | ||
924 : | IMAGE forward, | ||
925 : | IMAGE backward, | ||
926 : | const MACROBLOCK * pMB, | ||
927 : | const uint32_t x_pos, | ||
928 : | const uint32_t y_pos, | ||
929 : | Bitstream * bs) | ||
930 : | chenm001 | 1.14 | { |
931 : | |||
932 : | edgomez | 1.19 | DECLARE_ALIGNED_MATRIX(block, 6, 64, int16_t, CACHE_LINE); |
933 : | chenm001 | 1.14 | DECLARE_ALIGNED_MATRIX(data, 6, 64, int16_t, CACHE_LINE); |
934 : | |||
935 : | edgomez | 1.19 | uint32_t stride = dec->edged_width; |
936 : | uint32_t stride2 = stride / 2; | ||
937 : | uint32_t next_block = stride * 8; | ||
938 : | uint32_t iQuant = pMB->quant; | ||
939 : | int uv_dx, uv_dy; | ||
940 : | int b_uv_dx, b_uv_dy; | ||
941 : | uint32_t i; | ||
942 : | uint8_t *pY_Cur, *pU_Cur, *pV_Cur; | ||
943 : | chenm001 | 1.30 | const uint32_t cbp = pMB->cbp; |
944 : | chenm001 | 1.15 | |
945 : | pY_Cur = dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); | ||
946 : | pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); | ||
947 : | pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); | ||
948 : | chenm001 | 1.14 | |
949 : | chenm001 | 1.30 | |
950 : | edgomez | 1.19 | if ((pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q)) { |
951 : | chenm001 | 1.14 | uv_dx = pMB->mvs[0].x; |
952 : | uv_dy = pMB->mvs[0].y; | ||
953 : | |||
954 : | uv_dx = (uv_dx & 3) ? (uv_dx >> 1) | 1 : uv_dx / 2; | ||
955 : | uv_dy = (uv_dy & 3) ? (uv_dy >> 1) | 1 : uv_dy / 2; | ||
956 : | |||
957 : | b_uv_dx = pMB->b_mvs[0].x; | ||
958 : | b_uv_dy = pMB->b_mvs[0].y; | ||
959 : | |||
960 : | b_uv_dx = (uv_dx & 3) ? (uv_dx >> 1) | 1 : uv_dx / 2; | ||
961 : | b_uv_dy = (uv_dy & 3) ? (uv_dy >> 1) | 1 : uv_dy / 2; | ||
962 : | edgomez | 1.19 | } else { |
963 : | chenm001 | 1.14 | int sum; |
964 : | edgomez | 1.19 | |
965 : | chenm001 | 1.14 | sum = pMB->mvs[0].x + pMB->mvs[1].x + pMB->mvs[2].x + pMB->mvs[3].x; |
966 : | edgomez | 1.19 | uv_dx = |
967 : | (sum == | ||
968 : | 0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + | ||
969 : | (ABS(sum) / 16) * 2)); | ||
970 : | chenm001 | 1.14 | |
971 : | sum = pMB->mvs[0].y + pMB->mvs[1].y + pMB->mvs[2].y + pMB->mvs[3].y; | ||
972 : | edgomez | 1.19 | uv_dy = |
973 : | (sum == | ||
974 : | 0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + | ||
975 : | (ABS(sum) / 16) * 2)); | ||
976 : | |||
977 : | sum = | ||
978 : | pMB->b_mvs[0].x + pMB->b_mvs[1].x + pMB->b_mvs[2].x + | ||
979 : | pMB->b_mvs[3].x; | ||
980 : | b_uv_dx = | ||
981 : | (sum == | ||
982 : | 0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + | ||
983 : | (ABS(sum) / 16) * 2)); | ||
984 : | |||
985 : | sum = | ||
986 : | pMB->b_mvs[0].y + pMB->b_mvs[1].y + pMB->b_mvs[2].y + | ||
987 : | pMB->b_mvs[3].y; | ||
988 : | b_uv_dy = | ||
989 : | (sum == | ||
990 : | 0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + | ||
991 : | (ABS(sum) / 16) * 2)); | ||
992 : | } | ||
993 : | chenm001 | 1.14 | |
994 : | |||
995 : | start_timer(); | ||
996 : | edgomez | 1.19 | interpolate8x8_switch(dec->cur.y, forward.y, 16 * x_pos, 16 * y_pos, |
997 : | pMB->mvs[0].x, pMB->mvs[0].y, stride, 0); | ||
998 : | interpolate8x8_switch(dec->cur.y, forward.y, 16 * x_pos + 8, 16 * y_pos, | ||
999 : | pMB->mvs[1].x, pMB->mvs[1].y, stride, 0); | ||
1000 : | interpolate8x8_switch(dec->cur.y, forward.y, 16 * x_pos, 16 * y_pos + 8, | ||
1001 : | pMB->mvs[2].x, pMB->mvs[2].y, stride, 0); | ||
1002 : | interpolate8x8_switch(dec->cur.y, forward.y, 16 * x_pos + 8, | ||
1003 : | 16 * y_pos + 8, pMB->mvs[3].x, pMB->mvs[3].y, stride, | ||
1004 : | 0); | ||
1005 : | interpolate8x8_switch(dec->cur.u, forward.u, 8 * x_pos, 8 * y_pos, uv_dx, | ||
1006 : | uv_dy, stride2, 0); | ||
1007 : | interpolate8x8_switch(dec->cur.v, forward.v, 8 * x_pos, 8 * y_pos, uv_dx, | ||
1008 : | uv_dy, stride2, 0); | ||
1009 : | |||
1010 : | |||
1011 : | interpolate8x8_switch(dec->refn[2].y, backward.y, 16 * x_pos, 16 * y_pos, | ||
1012 : | pMB->b_mvs[0].x, pMB->b_mvs[0].y, stride, 0); | ||
1013 : | interpolate8x8_switch(dec->refn[2].y, backward.y, 16 * x_pos + 8, | ||
1014 : | 16 * y_pos, pMB->b_mvs[1].x, pMB->b_mvs[1].y, stride, | ||
1015 : | 0); | ||
1016 : | interpolate8x8_switch(dec->refn[2].y, backward.y, 16 * x_pos, | ||
1017 : | 16 * y_pos + 8, pMB->b_mvs[2].x, pMB->b_mvs[2].y, | ||
1018 : | stride, 0); | ||
1019 : | interpolate8x8_switch(dec->refn[2].y, backward.y, 16 * x_pos + 8, | ||
1020 : | 16 * y_pos + 8, pMB->b_mvs[3].x, pMB->b_mvs[3].y, | ||
1021 : | stride, 0); | ||
1022 : | interpolate8x8_switch(dec->refn[2].u, backward.u, 8 * x_pos, 8 * y_pos, | ||
1023 : | b_uv_dx, b_uv_dy, stride2, 0); | ||
1024 : | interpolate8x8_switch(dec->refn[2].v, backward.v, 8 * x_pos, 8 * y_pos, | ||
1025 : | b_uv_dx, b_uv_dy, stride2, 0); | ||
1026 : | |||
1027 : | interpolate8x8_c(dec->cur.y, dec->refn[2].y, 16 * x_pos, 16 * y_pos, | ||
1028 : | stride); | ||
1029 : | interpolate8x8_c(dec->cur.y, dec->refn[2].y, 16 * x_pos + 8, 16 * y_pos, | ||
1030 : | stride); | ||
1031 : | interpolate8x8_c(dec->cur.y, dec->refn[2].y, 16 * x_pos, 16 * y_pos + 8, | ||
1032 : | stride); | ||
1033 : | interpolate8x8_c(dec->cur.y, dec->refn[2].y, 16 * x_pos + 8, | ||
1034 : | 16 * y_pos + 8, stride); | ||
1035 : | interpolate8x8_c(dec->cur.u, dec->refn[2].u, 8 * x_pos, 8 * y_pos, | ||
1036 : | stride2); | ||
1037 : | interpolate8x8_c(dec->cur.v, dec->refn[2].v, 8 * x_pos, 8 * y_pos, | ||
1038 : | stride2); | ||
1039 : | chenm001 | 1.14 | stop_comp_timer(); |
1040 : | edgomez | 1.19 | |
1041 : | for (i = 0; i < 6; i++) { | ||
1042 : | edgomez | 1.44 | if (cbp & (1 << (5 - i))) /* coded */ |
1043 : | chenm001 | 1.15 | { |
1044 : | edgomez | 1.44 | memset(&block[i * 64], 0, 64 * sizeof(int16_t)); /* clear */ |
1045 : | chenm001 | 1.14 | |
1046 : | chenm001 | 1.15 | start_timer(); |
1047 : | edgomez | 1.19 | get_inter_block(bs, &block[i * 64]); |
1048 : | chenm001 | 1.15 | stop_coding_timer(); |
1049 : | |||
1050 : | start_timer(); | ||
1051 : | edgomez | 1.19 | if (dec->quant_type == 0) { |
1052 : | dequant_inter(&data[i * 64], &block[i * 64], iQuant); | ||
1053 : | } else { | ||
1054 : | dequant4_inter(&data[i * 64], &block[i * 64], iQuant); | ||
1055 : | chenm001 | 1.15 | } |
1056 : | stop_iquant_timer(); | ||
1057 : | |||
1058 : | start_timer(); | ||
1059 : | edgomez | 1.19 | idct(&data[i * 64]); |
1060 : | chenm001 | 1.15 | stop_idct_timer(); |
1061 : | } | ||
1062 : | } | ||
1063 : | |||
1064 : | edgomez | 1.19 | if (dec->interlacing && pMB->field_dct) { |
1065 : | chenm001 | 1.15 | next_block = stride; |
1066 : | stride *= 2; | ||
1067 : | } | ||
1068 : | |||
1069 : | start_timer(); | ||
1070 : | if (cbp & 32) | ||
1071 : | edgomez | 1.19 | transfer_16to8add(pY_Cur, &data[0 * 64], stride); |
1072 : | chenm001 | 1.15 | if (cbp & 16) |
1073 : | edgomez | 1.19 | transfer_16to8add(pY_Cur + 8, &data[1 * 64], stride); |
1074 : | chenm001 | 1.15 | if (cbp & 8) |
1075 : | edgomez | 1.19 | transfer_16to8add(pY_Cur + next_block, &data[2 * 64], stride); |
1076 : | chenm001 | 1.15 | if (cbp & 4) |
1077 : | edgomez | 1.19 | transfer_16to8add(pY_Cur + 8 + next_block, &data[3 * 64], stride); |
1078 : | chenm001 | 1.15 | if (cbp & 2) |
1079 : | edgomez | 1.19 | transfer_16to8add(pU_Cur, &data[4 * 64], stride2); |
1080 : | chenm001 | 1.15 | if (cbp & 1) |
1081 : | edgomez | 1.19 | transfer_16to8add(pV_Cur, &data[5 * 64], stride2); |
1082 : | chenm001 | 1.15 | stop_transfer_timer(); |
1083 : | chenm001 | 1.14 | } |
1084 : | |||
1085 : | |||
1086 : | edgomez | 1.44 | /* add by MinChen <chenm001@163.com> */ |
1087 : | /* for decode B-frame dbquant */ | ||
1088 : | edgomez | 1.19 | int32_t __inline |
1089 : | get_dbquant(Bitstream * bs) | ||
1090 : | chenm001 | 1.14 | { |
1091 : | edgomez | 1.44 | if (!BitstreamGetBit(bs)) /* '0' */ |
1092 : | edgomez | 1.19 | return (0); |
1093 : | edgomez | 1.44 | else if (!BitstreamGetBit(bs)) /* '10' */ |
1094 : | edgomez | 1.19 | return (-2); |
1095 : | chenm001 | 1.14 | else |
1096 : | edgomez | 1.44 | return (2); /* '11' */ |
1097 : | chenm001 | 1.14 | } |
1098 : | |||
1099 : | edgomez | 1.44 | /* add by MinChen <chenm001@163.com> */ |
1100 : | /* for decode B-frame mb_type */ | ||
1101 : | /* bit ret_value */ | ||
1102 : | /* 1 0 */ | ||
1103 : | /* 01 1 */ | ||
1104 : | /* 001 2 */ | ||
1105 : | /* 0001 3 */ | ||
1106 : | edgomez | 1.19 | int32_t __inline |
1107 : | get_mbtype(Bitstream * bs) | ||
1108 : | chenm001 | 1.14 | { |
1109 : | chenm001 | 1.15 | int32_t mb_type; |
1110 : | edgomez | 1.19 | |
1111 : | for (mb_type = 0; mb_type <= 3; mb_type++) { | ||
1112 : | if (BitstreamGetBit(bs)) | ||
1113 : | chenm001 | 1.15 | break; |
1114 : | } | ||
1115 : | |||
1116 : | edgomez | 1.19 | if (mb_type <= 3) |
1117 : | return (mb_type); | ||
1118 : | chenm001 | 1.14 | else |
1119 : | edgomez | 1.19 | return (-1); |
1120 : | chenm001 | 1.14 | } |
1121 : | |||
1122 : | edgomez | 1.19 | void |
1123 : | decoder_bframe(DECODER * dec, | ||
1124 : | Bitstream * bs, | ||
1125 : | int quant, | ||
1126 : | int fcode_forward, | ||
1127 : | int fcode_backward) | ||
1128 : | chenm001 | 1.14 | { |
1129 : | edgomez | 1.19 | uint32_t x, y; |
1130 : | chenm001 | 1.30 | VECTOR mv; |
1131 : | const VECTOR zeromv = {0,0}; | ||
1132 : | chenm001 | 1.27 | #ifdef BFRAMES_DEC_DEBUG |
1133 : | FILE *fp; | ||
1134 : | static char first=0; | ||
1135 : | #define BFRAME_DEBUG if (!first && fp){ \ | ||
1136 : | fprintf(fp,"Y=%3d X=%3d MB=%2d CBP=%02X\n",y,x,mb->mb_type,mb->cbp); \ | ||
1137 : | } | ||
1138 : | #endif | ||
1139 : | chenm001 | 1.14 | |
1140 : | start_timer(); | ||
1141 : | edgomez | 1.19 | image_setedges(&dec->refn[0], dec->edged_width, dec->edged_height, |
1142 : | h | 1.41 | dec->width, dec->height); |
1143 : | chenm001 | 1.30 | image_setedges(&dec->refn[1], dec->edged_width, dec->edged_height, |
1144 : | h | 1.41 | dec->width, dec->height); |
1145 : | chenm001 | 1.14 | stop_edges_timer(); |
1146 : | |||
1147 : | chenm001 | 1.27 | #ifdef BFRAMES_DEC_DEBUG |
1148 : | if (!first){ | ||
1149 : | fp=fopen("C:\\XVIDDBG.TXT","w"); | ||
1150 : | } | ||
1151 : | #endif | ||
1152 : | chenm001 | 1.15 | |
1153 : | edgomez | 1.19 | for (y = 0; y < dec->mb_height; y++) { |
1154 : | edgomez | 1.44 | /* Initialize Pred Motion Vector */ |
1155 : | chenm001 | 1.30 | dec->p_fmv = dec->p_bmv = zeromv; |
1156 : | edgomez | 1.19 | for (x = 0; x < dec->mb_width; x++) { |
1157 : | MACROBLOCK *mb = &dec->mbs[y * dec->mb_width + x]; | ||
1158 : | MACROBLOCK *last_mb = &dec->last_mbs[y * dec->mb_width + x]; | ||
1159 : | chenm001 | 1.14 | |
1160 : | chenm001 | 1.30 | mv = |
1161 : | mb->b_mvs[0] = mb->b_mvs[1] = mb->b_mvs[2] = mb->b_mvs[3] = | ||
1162 : | mb->mvs[0] = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = zeromv; | ||
1163 : | chenm001 | 1.15 | |
1164 : | edgomez | 1.44 | /* the last P_VOP is skip macroblock ? */ |
1165 : | edgomez | 1.19 | if (last_mb->mode == MODE_NOT_CODED) { |
1166 : | edgomez | 1.44 | /*DEBUG2("Skip MB in B-frame at (X,Y)=!",x,y); */ |
1167 : | chenm001 | 1.27 | mb->cbp = 0; |
1168 : | #ifdef BFRAMES_DEC_DEBUG | ||
1169 : | chenm001 | 1.29 | mb->mb_type = MODE_NOT_CODED; |
1170 : | chenm001 | 1.27 | BFRAME_DEBUG |
1171 : | #endif | ||
1172 : | chenm001 | 1.15 | mb->mb_type = MODE_FORWARD; |
1173 : | chenm001 | 1.30 | mb->quant = last_mb->quant; |
1174 : | edgomez | 1.44 | /*mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = mb->mvs[0].x; */ |
1175 : | /*mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = mb->mvs[0].y; */ | ||
1176 : | chenm001 | 1.14 | |
1177 : | chenm001 | 1.30 | decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, mb->quant, 1); |
1178 : | chenm001 | 1.14 | continue; |
1179 : | } | ||
1180 : | chenm001 | 1.15 | |
1181 : | edgomez | 1.44 | if (!BitstreamGetBit(bs)) { /* modb=='0' */ |
1182 : | edgomez | 1.19 | const uint8_t modb2 = BitstreamGetBit(bs); |
1183 : | chenm001 | 1.14 | |
1184 : | mb->mb_type = get_mbtype(bs); | ||
1185 : | edgomez | 1.19 | |
1186 : | edgomez | 1.44 | if (!modb2) { /* modb=='00' */ |
1187 : | edgomez | 1.19 | mb->cbp = BitstreamGetBits(bs, 6); |
1188 : | chenm001 | 1.14 | } else { |
1189 : | mb->cbp = 0; | ||
1190 : | } | ||
1191 : | edgomez | 1.19 | if (mb->mb_type && mb->cbp) { |
1192 : | chenm001 | 1.14 | quant += get_dbquant(bs); |
1193 : | |||
1194 : | edgomez | 1.19 | if (quant > 31) { |
1195 : | chenm001 | 1.14 | quant = 31; |
1196 : | chenm001 | 1.26 | } else if (quant < 1) { |
1197 : | chenm001 | 1.14 | quant = 1; |
1198 : | } | ||
1199 : | } | ||
1200 : | } else { | ||
1201 : | mb->mb_type = MODE_DIRECT_NONE_MV; | ||
1202 : | edgomez | 1.19 | mb->cbp = 0; |
1203 : | chenm001 | 1.14 | } |
1204 : | |||
1205 : | chenm001 | 1.30 | mb->quant = quant; |
1206 : | mb->mode = MODE_INTER4V; | ||
1207 : | edgomez | 1.44 | /*DEBUG1("Switch bm_type=",mb->mb_type); */ |
1208 : | chenm001 | 1.14 | |
1209 : | chenm001 | 1.27 | #ifdef BFRAMES_DEC_DEBUG |
1210 : | BFRAME_DEBUG | ||
1211 : | #endif | ||
1212 : | chl | 1.33 | |
1213 : | edgomez | 1.19 | switch (mb->mb_type) { |
1214 : | chenm001 | 1.14 | case MODE_DIRECT: |
1215 : | chenm001 | 1.30 | get_b_motion_vector(dec, bs, x, y, &mv, 1, zeromv); |
1216 : | chenm001 | 1.14 | |
1217 : | case MODE_DIRECT_NONE_MV: | ||
1218 : | chl | 1.33 | { |
1219 : | chenm001 | 1.30 | const int64_t TRB = dec->time_pp - dec->time_bp, TRD = dec->time_pp; |
1220 : | chenm001 | 1.14 | int i; |
1221 : | edgomez | 1.19 | |
1222 : | for (i = 0; i < 4; i++) { | ||
1223 : | chenm001 | 1.30 | mb->mvs[i].x = (int32_t) ((TRB * last_mb->mvs[i].x) |
1224 : | / TRD + mv.x); | ||
1225 : | mb->b_mvs[i].x = (int32_t) ((mv.x == 0) | ||
1226 : | ? ((TRB - TRD) * last_mb->mvs[i].x) | ||
1227 : | / TRD | ||
1228 : | : mb->mvs[i].x - last_mb->mvs[i].x); | ||
1229 : | mb->mvs[i].y = (int32_t) ((TRB * last_mb->mvs[i].y) | ||
1230 : | / TRD + mv.y); | ||
1231 : | mb->b_mvs[i].y = (int32_t) ((mv.y == 0) | ||
1232 : | ? ((TRB - TRD) * last_mb->mvs[i].y) | ||
1233 : | / TRD | ||
1234 : | : mb->mvs[i].y - last_mb->mvs[i].y); | ||
1235 : | chenm001 | 1.14 | } |
1236 : | edgomez | 1.44 | /*DEBUG("B-frame Direct!\n"); */ |
1237 : | chenm001 | 1.14 | } |
1238 : | edgomez | 1.19 | decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], |
1239 : | chenm001 | 1.30 | mb, x, y, bs); |
1240 : | chenm001 | 1.14 | break; |
1241 : | |||
1242 : | case MODE_INTERPOLATE: | ||
1243 : | edgomez | 1.19 | get_b_motion_vector(dec, bs, x, y, &mb->mvs[0], fcode_forward, |
1244 : | dec->p_fmv); | ||
1245 : | chenm001 | 1.30 | dec->p_fmv = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = mb->mvs[0]; |
1246 : | edgomez | 1.19 | |
1247 : | get_b_motion_vector(dec, bs, x, y, &mb->b_mvs[0], | ||
1248 : | fcode_backward, dec->p_bmv); | ||
1249 : | chenm001 | 1.30 | dec->p_bmv = mb->b_mvs[1] = mb->b_mvs[2] = |
1250 : | mb->b_mvs[3] = mb->b_mvs[0]; | ||
1251 : | chenm001 | 1.14 | |
1252 : | edgomez | 1.19 | decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], |
1253 : | chenm001 | 1.30 | mb, x, y, bs); |
1254 : | edgomez | 1.44 | /*DEBUG("B-frame Bidir!\n"); */ |
1255 : | chenm001 | 1.14 | break; |
1256 : | |||
1257 : | case MODE_BACKWARD: | ||
1258 : | edgomez | 1.19 | get_b_motion_vector(dec, bs, x, y, &mb->mvs[0], fcode_backward, |
1259 : | dec->p_bmv); | ||
1260 : | chenm001 | 1.30 | dec->p_bmv = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = mb->mvs[0]; |
1261 : | chenm001 | 1.15 | |
1262 : | chenm001 | 1.30 | mb->mode = MODE_INTER; |
1263 : | chenm001 | 1.14 | decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, quant, 0); |
1264 : | edgomez | 1.44 | /*DEBUG("B-frame Backward!\n"); */ |
1265 : | chenm001 | 1.14 | break; |
1266 : | |||
1267 : | case MODE_FORWARD: | ||
1268 : | edgomez | 1.19 | get_b_motion_vector(dec, bs, x, y, &mb->mvs[0], fcode_forward, |
1269 : | dec->p_fmv); | ||
1270 : | chenm001 | 1.30 | dec->p_fmv = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = mb->mvs[0]; |
1271 : | chenm001 | 1.15 | |
1272 : | chenm001 | 1.30 | mb->mode = MODE_INTER; |
1273 : | chenm001 | 1.14 | decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, quant, 1); |
1274 : | edgomez | 1.44 | /*DEBUG("B-frame Forward!\n"); */ |
1275 : | chenm001 | 1.14 | break; |
1276 : | |||
1277 : | default: | ||
1278 : | edgomez | 1.39 | DPRINTF(DPRINTF_ERROR, "Not support B-frame mb_type = %d", mb->mb_type); |
1279 : | chl | 1.33 | } |
1280 : | chenm001 | 1.14 | |
1281 : | edgomez | 1.44 | } /* end of FOR */ |
1282 : | chenm001 | 1.14 | } |
1283 : | chenm001 | 1.27 | #ifdef BFRAMES_DEC_DEBUG |
1284 : | if (!first){ | ||
1285 : | first=1; | ||
1286 : | if (fp) | ||
1287 : | fclose(fp); | ||
1288 : | } | ||
1289 : | #endif | ||
1290 : | chenm001 | 1.14 | } |
1291 : | |||
1292 : | edgomez | 1.44 | /* swap two MACROBLOCK array */ |
1293 : | edgomez | 1.19 | void |
1294 : | mb_swap(MACROBLOCK ** mb1, | ||
1295 : | MACROBLOCK ** mb2) | ||
1296 : | chenm001 | 1.14 | { |
1297 : | edgomez | 1.19 | MACROBLOCK *temp = *mb1; |
1298 : | |||
1299 : | *mb1 = *mb2; | ||
1300 : | *mb2 = temp; | ||
1301 : | chenm001 | 1.14 | } |
1302 : | |||
1303 : | edgomez | 1.19 | int |
1304 : | decoder_decode(DECODER * dec, | ||
1305 : | XVID_DEC_FRAME * frame) | ||
1306 : | Isibaar | 1.1 | { |
1307 : | edgomez | 1.7 | |
1308 : | Isibaar | 1.1 | Bitstream bs; |
1309 : | uint32_t rounding; | ||
1310 : | uint32_t quant; | ||
1311 : | chenm001 | 1.14 | uint32_t fcode_forward; |
1312 : | uint32_t fcode_backward; | ||
1313 : | Isibaar | 1.1 | uint32_t intra_dc_threshold; |
1314 : | chenm001 | 1.11 | uint32_t vop_type; |
1315 : | Isibaar | 1.1 | |
1316 : | start_global_timer(); | ||
1317 : | albeu | 1.32 | |
1318 : | dec->out_frm = (frame->colorspace == XVID_CSP_EXTERN) ? frame->image : NULL; | ||
1319 : | edgomez | 1.19 | |
1320 : | Isibaar | 1.1 | BitstreamInit(&bs, frame->bitstream, frame->length); |
1321 : | |||
1322 : | edgomez | 1.44 | /* add by chenm001 <chenm001@163.com> */ |
1323 : | /* for support B-frame to reference last 2 frame */ | ||
1324 : | Isibaar | 1.18 | dec->frames++; |
1325 : | edgomez | 1.19 | vop_type = |
1326 : | BitstreamReadHeaders(&bs, dec, &rounding, &quant, &fcode_forward, | ||
1327 : | &fcode_backward, &intra_dc_threshold); | ||
1328 : | |||
1329 : | edgomez | 1.44 | dec->p_bmv.x = dec->p_bmv.y = dec->p_fmv.y = dec->p_fmv.y = 0; /* init pred vector to 0 */ |
1330 : | edgomez | 1.19 | |
1331 : | switch (vop_type) { | ||
1332 : | case P_VOP: | ||
1333 : | decoder_pframe(dec, &bs, rounding, quant, fcode_forward, | ||
1334 : | intra_dc_threshold); | ||
1335 : | chenm001 | 1.26 | #ifdef BFRAMES_DEC |
1336 : | edgomez | 1.40 | DPRINTF(DPRINTF_DEBUG, "P_VOP Time=%d", dec->time); |
1337 : | chenm001 | 1.26 | #endif |
1338 : | Isibaar | 1.1 | break; |
1339 : | |||
1340 : | edgomez | 1.19 | case I_VOP: |
1341 : | Isibaar | 1.1 | decoder_iframe(dec, &bs, quant, intra_dc_threshold); |
1342 : | chenm001 | 1.26 | #ifdef BFRAMES_DEC |
1343 : | edgomez | 1.40 | DPRINTF(DPRINTF_DEBUG, "I_VOP Time=%d", dec->time); |
1344 : | chenm001 | 1.26 | #endif |
1345 : | Isibaar | 1.1 | break; |
1346 : | |||
1347 : | edgomez | 1.19 | case B_VOP: |
1348 : | suxen_drol | 1.21 | #ifdef BFRAMES_DEC |
1349 : | edgomez | 1.19 | if (dec->time_pp > dec->time_bp) { |
1350 : | edgomez | 1.40 | DPRINTF(DPRINTF_DEBUG, "B_VOP Time=%d", dec->time); |
1351 : | chenm001 | 1.14 | decoder_bframe(dec, &bs, quant, fcode_forward, fcode_backward); |
1352 : | } else { | ||
1353 : | edgomez | 1.40 | DPRINTF(DPRINTF_DEBUG, "Broken B_VOP"); |
1354 : | chenm001 | 1.14 | } |
1355 : | suxen_drol | 1.21 | #else |
1356 : | image_copy(&dec->cur, &dec->refn[0], dec->edged_width, dec->height); | ||
1357 : | Isibaar | 1.18 | #endif |
1358 : | Isibaar | 1.1 | break; |
1359 : | edgomez | 1.19 | |
1360 : | edgomez | 1.44 | case N_VOP: /* vop not coded */ |
1361 : | /* when low_delay==0, N_VOP's should interpolate between the past and future frames */ | ||
1362 : | suxen_drol | 1.21 | image_copy(&dec->cur, &dec->refn[0], dec->edged_width, dec->height); |
1363 : | Isibaar | 1.1 | break; |
1364 : | |||
1365 : | edgomez | 1.19 | default: |
1366 : | Isibaar | 1.1 | return XVID_ERR_FAIL; |
1367 : | } | ||
1368 : | |||
1369 : | chenm001 | 1.28 | #ifdef BFRAMES_DEC_DEBUG |
1370 : | chenm001 | 1.27 | if (frame->length != BitstreamPos(&bs) / 8){ |
1371 : | edgomez | 1.40 | DPRINTF(DPRINTF_DEBUG, "InLen: %d / UseLen: %d", frame->length, BitstreamPos(&bs) / 8); |
1372 : | chenm001 | 1.27 | } |
1373 : | chenm001 | 1.28 | #endif |
1374 : | Isibaar | 1.1 | frame->length = BitstreamPos(&bs) / 8; |
1375 : | |||
1376 : | chenm001 | 1.27 | |
1377 : | suxen_drol | 1.21 | #ifdef BFRAMES_DEC |
1378 : | edgomez | 1.44 | /* test if no B_VOP */ |
1379 : | chenm001 | 1.36 | if (dec->low_delay || dec->frames == 0) { |
1380 : | Isibaar | 1.18 | #endif |
1381 : | chenm001 | 1.27 | image_output(&dec->cur, dec->width, dec->height, dec->edged_width, |
1382 : | edgomez | 1.19 | frame->image, frame->stride, frame->colorspace); |
1383 : | chenm001 | 1.27 | |
1384 : | suxen_drol | 1.21 | #ifdef BFRAMES_DEC |
1385 : | chenm001 | 1.17 | } else { |
1386 : | chenm001 | 1.36 | if (dec->frames >= 1) { |
1387 : | chenm001 | 1.17 | start_timer(); |
1388 : | edgomez | 1.19 | if ((vop_type == I_VOP || vop_type == P_VOP)) { |
1389 : | image_output(&dec->refn[0], dec->width, dec->height, | ||
1390 : | dec->edged_width, frame->image, frame->stride, | ||
1391 : | frame->colorspace); | ||
1392 : | chenm001 | 1.17 | } else if (vop_type == B_VOP) { |
1393 : | edgomez | 1.19 | image_output(&dec->cur, dec->width, dec->height, |
1394 : | dec->edged_width, frame->image, frame->stride, | ||
1395 : | frame->colorspace); | ||
1396 : | chenm001 | 1.17 | } |
1397 : | stop_conv_timer(); | ||
1398 : | chenm001 | 1.14 | } |
1399 : | } | ||
1400 : | Isibaar | 1.18 | #endif |
1401 : | |||
1402 : | edgomez | 1.19 | if (vop_type == I_VOP || vop_type == P_VOP) { |
1403 : | chenm001 | 1.14 | image_swap(&dec->refn[0], &dec->refn[1]); |
1404 : | image_swap(&dec->cur, &dec->refn[0]); | ||
1405 : | chenm001 | 1.31 | |
1406 : | edgomez | 1.44 | /* swap MACROBLOCK */ |
1407 : | /* the Divx will not set the low_delay flage some times */ | ||
1408 : | /* so follow code will wrong to not swap at that time */ | ||
1409 : | /* this will broken bitstream! so I'm change it, */ | ||
1410 : | /* But that is not the best way! can anyone tell me how */ | ||
1411 : | /* to do another way? */ | ||
1412 : | /* 18-07-2002 MinChen<chenm001@163.com> */ | ||
1413 : | /*if (!dec->low_delay && vop_type == P_VOP) */ | ||
1414 : | chenm001 | 1.31 | if (vop_type == P_VOP) |
1415 : | chenm001 | 1.15 | mb_swap(&dec->mbs, &dec->last_mbs); |
1416 : | chenm001 | 1.14 | } |
1417 : | |||
1418 : | Isibaar | 1.1 | emms(); |
1419 : | |||
1420 : | stop_global_timer(); | ||
1421 : | |||
1422 : | return XVID_ERR_OK; | ||
1423 : | } |
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