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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 | 1.47 | * This program is an implementation of a part of one or more MPEG-4 |
7 : | * Video tools as specified in ISO/IEC 14496-2 standard. Those intending | ||
8 : | * to use this software module in hardware or software products are | ||
9 : | * advised that its use may infringe existing patents or copyrights, and | ||
10 : | * any such use would be at such party's own risk. The original | ||
11 : | * developer of this software module and his/her company, and subsequent | ||
12 : | * editors and their companies, will have no liability for use of this | ||
13 : | * software or modifications or derivatives thereof. | ||
14 : | edgomez | 1.42 | * |
15 : | edgomez | 1.47 | * This program is free software; you can redistribute it and/or modify |
16 : | * it under the terms of the GNU General Public License as published by | ||
17 : | edgomez | 1.12 | * the Free Software Foundation; either version 2 of the License, or |
18 : | * (at your option) any later version. | ||
19 : | * | ||
20 : | * This program is distributed in the hope that it will be useful, | ||
21 : | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
22 : | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
23 : | * GNU General Public License for more details. | ||
24 : | * | ||
25 : | * You should have received a copy of the GNU General Public License | ||
26 : | * along with this program; if not, write to the Free Software | ||
27 : | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
28 : | Isibaar | 1.1 | * |
29 : | edgomez | 1.47 | *************************************************************************/ |
30 : | |||
31 : | /************************************************************************** | ||
32 : | edgomez | 1.43 | * |
33 : | edgomez | 1.47 | * History: |
34 : | edgomez | 1.43 | * |
35 : | edgomez | 1.47 | * 15.07.2002 fix a bug in B-frame decode at DIRECT mode |
36 : | * MinChen <chenm001@163.com> | ||
37 : | * 10.07.2002 added BFRAMES_DEC_DEBUG support | ||
38 : | * Fix a little bug for low_delay flage | ||
39 : | * MinChen <chenm001@163.com> | ||
40 : | * 28.06.2002 added basic resync support to iframe/pframe_decode() | ||
41 : | * 22.06.2002 added primative N_VOP support | ||
42 : | * #define BFRAMES_DEC now enables Minchen's bframe decoder | ||
43 : | * 08.05.2002 add low_delay support for B_VOP decode | ||
44 : | * MinChen <chenm001@163.com> | ||
45 : | * 05.05.2002 fix some B-frame decode problem | ||
46 : | * 02.05.2002 add B-frame decode support(have some problem); | ||
47 : | * MinChen <chenm001@163.com> | ||
48 : | * 22.04.2002 add some B-frame decode support; chenm001 <chenm001@163.com> | ||
49 : | * 29.03.2002 interlacing fix - compensated block wasn't being used when | ||
50 : | * reconstructing blocks, thus artifacts | ||
51 : | * interlacing speedup - used transfers to re-interlace | ||
52 : | * interlaced decoding should be as fast as progressive now | ||
53 : | * 26.03.2002 interlacing support - moved transfers outside decode loop | ||
54 : | * 26.12.2001 decoder_mbinter: dequant/idct moved within if(coded) block | ||
55 : | * 22.12.2001 lock based interpolation | ||
56 : | * 01.12.2001 inital version; (c)2001 peter ross <pross@cs.rmit.edu.au> | ||
57 : | edgomez | 1.43 | * |
58 : | edgomez | 1.47 | * $Id: decoder.c,v 1.37.2.30 2003/01/12 13:11:50 chl Exp $ |
59 : | Isibaar | 1.1 | * |
60 : | *************************************************************************/ | ||
61 : | |||
62 : | edgomez | 1.47 | #include <stdio.h> |
63 : | Isibaar | 1.1 | #include <stdlib.h> |
64 : | edgomez | 1.12 | #include <string.h> |
65 : | Isibaar | 1.1 | |
66 : | chenm001 | 1.27 | #ifdef BFRAMES_DEC_DEBUG |
67 : | #define BFRAMES_DEC | ||
68 : | #endif | ||
69 : | |||
70 : | Isibaar | 1.1 | #include "xvid.h" |
71 : | #include "portab.h" | ||
72 : | edgomez | 1.47 | #include "global.h" |
73 : | Isibaar | 1.1 | |
74 : | #include "decoder.h" | ||
75 : | #include "bitstream/bitstream.h" | ||
76 : | #include "bitstream/mbcoding.h" | ||
77 : | |||
78 : | #include "quant/quant_h263.h" | ||
79 : | #include "quant/quant_mpeg4.h" | ||
80 : | #include "dct/idct.h" | ||
81 : | #include "dct/fdct.h" | ||
82 : | #include "utils/mem_transfer.h" | ||
83 : | #include "image/interpolate8x8.h" | ||
84 : | edgomez | 1.47 | #include "image/reduced.h" |
85 : | #include "image/font.h" | ||
86 : | Isibaar | 1.1 | |
87 : | #include "bitstream/mbcoding.h" | ||
88 : | #include "prediction/mbprediction.h" | ||
89 : | #include "utils/timer.h" | ||
90 : | #include "utils/emms.h" | ||
91 : | edgomez | 1.47 | #include "motion/motion.h" |
92 : | Isibaar | 1.1 | |
93 : | #include "image/image.h" | ||
94 : | #include "image/colorspace.h" | ||
95 : | Isibaar | 1.3 | #include "utils/mem_align.h" |
96 : | Isibaar | 1.1 | |
97 : | edgomez | 1.19 | int |
98 : | edgomez | 1.47 | decoder_resize(DECODER * dec) |
99 : | Isibaar | 1.1 | { |
100 : | edgomez | 1.47 | /* free existing */ |
101 : | |||
102 : | image_destroy(&dec->cur, dec->edged_width, dec->edged_height); | ||
103 : | image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); | ||
104 : | image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); | ||
105 : | image_destroy(&dec->tmp, dec->edged_width, dec->edged_height); | ||
106 : | image_destroy(&dec->qtmp, dec->edged_width, dec->edged_height); | ||
107 : | |||
108 : | image_destroy(&dec->gmc, dec->edged_width, dec->edged_height); | ||
109 : | Isibaar | 1.1 | |
110 : | edgomez | 1.47 | if (dec->last_mbs) |
111 : | xvid_free(dec->last_mbs); | ||
112 : | if (dec->mbs) | ||
113 : | xvid_free(dec->mbs); | ||
114 : | Isibaar | 1.1 | |
115 : | edgomez | 1.47 | /* realloc */ |
116 : | Isibaar | 1.1 | |
117 : | dec->mb_width = (dec->width + 15) / 16; | ||
118 : | dec->mb_height = (dec->height + 15) / 16; | ||
119 : | |||
120 : | dec->edged_width = 16 * dec->mb_width + 2 * EDGE_SIZE; | ||
121 : | dec->edged_height = 16 * dec->mb_height + 2 * EDGE_SIZE; | ||
122 : | edgomez | 1.19 | |
123 : | if (image_create(&dec->cur, dec->edged_width, dec->edged_height)) { | ||
124 : | Isibaar | 1.3 | xvid_free(dec); |
125 : | Isibaar | 1.1 | return XVID_ERR_MEMORY; |
126 : | } | ||
127 : | |||
128 : | edgomez | 1.19 | if (image_create(&dec->refn[0], dec->edged_width, dec->edged_height)) { |
129 : | Isibaar | 1.1 | image_destroy(&dec->cur, dec->edged_width, dec->edged_height); |
130 : | Isibaar | 1.3 | xvid_free(dec); |
131 : | Isibaar | 1.1 | return XVID_ERR_MEMORY; |
132 : | } | ||
133 : | edgomez | 1.47 | |
134 : | // add by chenm001 <chenm001@163.com> | ||
135 : | // for support B-frame to reference last 2 frame | ||
136 : | edgomez | 1.19 | if (image_create(&dec->refn[1], dec->edged_width, dec->edged_height)) { |
137 : | chenm001 | 1.11 | image_destroy(&dec->cur, dec->edged_width, dec->edged_height); |
138 : | image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); | ||
139 : | xvid_free(dec); | ||
140 : | return XVID_ERR_MEMORY; | ||
141 : | } | ||
142 : | edgomez | 1.47 | if (image_create(&dec->tmp, dec->edged_width, dec->edged_height)) { |
143 : | image_destroy(&dec->cur, dec->edged_width, dec->edged_height); | ||
144 : | image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); | ||
145 : | image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); | ||
146 : | xvid_free(dec); | ||
147 : | return XVID_ERR_MEMORY; | ||
148 : | } | ||
149 : | |||
150 : | if (image_create(&dec->qtmp, dec->edged_width, dec->edged_height)) { | ||
151 : | image_destroy(&dec->cur, dec->edged_width, dec->edged_height); | ||
152 : | image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); | ||
153 : | image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); | ||
154 : | image_destroy(&dec->tmp, dec->edged_width, dec->edged_height); | ||
155 : | xvid_free(dec); | ||
156 : | return XVID_ERR_MEMORY; | ||
157 : | } | ||
158 : | |||
159 : | if (image_create(&dec->gmc, dec->edged_width, dec->edged_height)) { | ||
160 : | image_destroy(&dec->qtmp, dec->edged_width, dec->edged_height); | ||
161 : | chenm001 | 1.14 | image_destroy(&dec->cur, dec->edged_width, dec->edged_height); |
162 : | image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); | ||
163 : | image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); | ||
164 : | edgomez | 1.47 | image_destroy(&dec->tmp, dec->edged_width, dec->edged_height); |
165 : | chenm001 | 1.14 | xvid_free(dec); |
166 : | return XVID_ERR_MEMORY; | ||
167 : | } | ||
168 : | Isibaar | 1.1 | |
169 : | edgomez | 1.19 | dec->mbs = |
170 : | xvid_malloc(sizeof(MACROBLOCK) * dec->mb_width * dec->mb_height, | ||
171 : | CACHE_LINE); | ||
172 : | if (dec->mbs == NULL) { | ||
173 : | Isibaar | 1.1 | image_destroy(&dec->cur, dec->edged_width, dec->edged_height); |
174 : | chenm001 | 1.14 | image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); |
175 : | image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); | ||
176 : | edgomez | 1.47 | image_destroy(&dec->tmp, dec->edged_width, dec->edged_height); |
177 : | image_destroy(&dec->qtmp, dec->edged_width, dec->edged_height); | ||
178 : | chenm001 | 1.14 | xvid_free(dec); |
179 : | return XVID_ERR_MEMORY; | ||
180 : | } | ||
181 : | Isibaar | 1.20 | memset(dec->mbs, 0, sizeof(MACROBLOCK) * dec->mb_width * dec->mb_height); |
182 : | |||
183 : | edgomez | 1.47 | // add by chenm001 <chenm001@163.com> |
184 : | // for skip MB flag | ||
185 : | edgomez | 1.19 | dec->last_mbs = |
186 : | xvid_malloc(sizeof(MACROBLOCK) * dec->mb_width * dec->mb_height, | ||
187 : | CACHE_LINE); | ||
188 : | if (dec->last_mbs == NULL) { | ||
189 : | chenm001 | 1.14 | xvid_free(dec->mbs); |
190 : | image_destroy(&dec->cur, dec->edged_width, dec->edged_height); | ||
191 : | image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); | ||
192 : | image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); | ||
193 : | edgomez | 1.47 | image_destroy(&dec->tmp, dec->edged_width, dec->edged_height); |
194 : | image_destroy(&dec->qtmp, dec->edged_width, dec->edged_height); | ||
195 : | Isibaar | 1.3 | xvid_free(dec); |
196 : | Isibaar | 1.1 | return XVID_ERR_MEMORY; |
197 : | } | ||
198 : | Isibaar | 1.20 | |
199 : | memset(dec->last_mbs, 0, sizeof(MACROBLOCK) * dec->mb_width * dec->mb_height); | ||
200 : | Isibaar | 1.1 | |
201 : | edgomez | 1.47 | return XVID_ERR_OK; |
202 : | } | ||
203 : | |||
204 : | |||
205 : | int | ||
206 : | decoder_create(XVID_DEC_PARAM * param) | ||
207 : | { | ||
208 : | DECODER *dec; | ||
209 : | |||
210 : | dec = xvid_malloc(sizeof(DECODER), CACHE_LINE); | ||
211 : | if (dec == NULL) { | ||
212 : | return XVID_ERR_MEMORY; | ||
213 : | } | ||
214 : | memset(dec, 0, sizeof(DECODER)); | ||
215 : | |||
216 : | param->handle = dec; | ||
217 : | |||
218 : | dec->width = param->width; | ||
219 : | dec->height = param->height; | ||
220 : | |||
221 : | image_null(&dec->cur); | ||
222 : | image_null(&dec->refn[0]); | ||
223 : | image_null(&dec->refn[1]); | ||
224 : | image_null(&dec->tmp); | ||
225 : | image_null(&dec->qtmp); | ||
226 : | |||
227 : | /* image based GMC */ | ||
228 : | image_null(&dec->gmc); | ||
229 : | |||
230 : | |||
231 : | dec->mbs = NULL; | ||
232 : | dec->last_mbs = NULL; | ||
233 : | |||
234 : | Isibaar | 1.1 | init_timer(); |
235 : | |||
236 : | edgomez | 1.47 | // add by chenm001 <chenm001@163.com> |
237 : | // for support B-frame to save reference frame's time | ||
238 : | dec->frames = 0; | ||
239 : | chenm001 | 1.14 | dec->time = dec->time_base = dec->last_time_base = 0; |
240 : | edgomez | 1.47 | dec->low_delay = 0; |
241 : | dec->packed_mode = 0; | ||
242 : | |||
243 : | dec->fixed_dimensions = (dec->width > 0 && dec->height > 0); | ||
244 : | edgomez | 1.19 | |
245 : | edgomez | 1.47 | if (dec->fixed_dimensions) |
246 : | return decoder_resize(dec); | ||
247 : | else | ||
248 : | return XVID_ERR_OK; | ||
249 : | Isibaar | 1.1 | } |
250 : | |||
251 : | |||
252 : | edgomez | 1.19 | int |
253 : | decoder_destroy(DECODER * dec) | ||
254 : | Isibaar | 1.1 | { |
255 : | chenm001 | 1.14 | xvid_free(dec->last_mbs); |
256 : | Isibaar | 1.3 | xvid_free(dec->mbs); |
257 : | edgomez | 1.47 | |
258 : | image_destroy(&dec->gmc, dec->edged_width, dec->edged_height); /* image based GMC */ | ||
259 : | |||
260 : | chenm001 | 1.11 | image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); |
261 : | chenm001 | 1.14 | image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); |
262 : | edgomez | 1.47 | image_destroy(&dec->tmp, dec->edged_width, dec->edged_height); |
263 : | image_destroy(&dec->qtmp, dec->edged_width, dec->edged_height); | ||
264 : | Isibaar | 1.1 | image_destroy(&dec->cur, dec->edged_width, dec->edged_height); |
265 : | Isibaar | 1.3 | xvid_free(dec); |
266 : | Isibaar | 1.1 | |
267 : | write_timer(); | ||
268 : | return XVID_ERR_OK; | ||
269 : | } | ||
270 : | |||
271 : | |||
272 : | |||
273 : | edgomez | 1.19 | static const int32_t dquant_table[4] = { |
274 : | Isibaar | 1.1 | -1, -2, 1, 2 |
275 : | }; | ||
276 : | |||
277 : | |||
278 : | chenm001 | 1.14 | |
279 : | |||
280 : | edgomez | 1.47 | // decode an intra macroblock |
281 : | Isibaar | 1.1 | |
282 : | edgomez | 1.19 | void |
283 : | decoder_mbintra(DECODER * dec, | ||
284 : | MACROBLOCK * pMB, | ||
285 : | const uint32_t x_pos, | ||
286 : | const uint32_t y_pos, | ||
287 : | const uint32_t acpred_flag, | ||
288 : | const uint32_t cbp, | ||
289 : | Bitstream * bs, | ||
290 : | const uint32_t quant, | ||
291 : | chenm001 | 1.26 | const uint32_t intra_dc_threshold, |
292 : | edgomez | 1.47 | const unsigned int bound, |
293 : | const int reduced_resolution) | ||
294 : | Isibaar | 1.1 | { |
295 : | edgomez | 1.7 | |
296 : | DECLARE_ALIGNED_MATRIX(block, 6, 64, int16_t, CACHE_LINE); | ||
297 : | edgomez | 1.19 | DECLARE_ALIGNED_MATRIX(data, 6, 64, int16_t, CACHE_LINE); |
298 : | edgomez | 1.7 | |
299 : | h | 1.8 | uint32_t stride = dec->edged_width; |
300 : | uint32_t stride2 = stride / 2; | ||
301 : | uint32_t next_block = stride * 8; | ||
302 : | h | 1.5 | uint32_t i; |
303 : | uint32_t iQuant = pMB->quant; | ||
304 : | uint8_t *pY_Cur, *pU_Cur, *pV_Cur; | ||
305 : | |||
306 : | edgomez | 1.47 | if (reduced_resolution) { |
307 : | pY_Cur = dec->cur.y + (y_pos << 5) * stride + (x_pos << 5); | ||
308 : | pU_Cur = dec->cur.u + (y_pos << 4) * stride2 + (x_pos << 4); | ||
309 : | pV_Cur = dec->cur.v + (y_pos << 4) * stride2 + (x_pos << 4); | ||
310 : | }else{ | ||
311 : | pY_Cur = dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); | ||
312 : | pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); | ||
313 : | pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); | ||
314 : | } | ||
315 : | edgomez | 1.7 | |
316 : | edgomez | 1.47 | memset(block, 0, 6 * 64 * sizeof(int16_t)); // clear |
317 : | h | 1.5 | |
318 : | edgomez | 1.19 | for (i = 0; i < 6; i++) { |
319 : | h | 1.5 | uint32_t iDcScaler = get_dc_scaler(iQuant, i < 4); |
320 : | Isibaar | 1.1 | int16_t predictors[8]; |
321 : | int start_coeff; | ||
322 : | |||
323 : | start_timer(); | ||
324 : | edgomez | 1.19 | predict_acdc(dec->mbs, x_pos, y_pos, dec->mb_width, i, &block[i * 64], |
325 : | chenm001 | 1.26 | iQuant, iDcScaler, predictors, bound); |
326 : | edgomez | 1.19 | if (!acpred_flag) { |
327 : | h | 1.5 | pMB->acpred_directions[i] = 0; |
328 : | Isibaar | 1.1 | } |
329 : | stop_prediction_timer(); | ||
330 : | |||
331 : | edgomez | 1.19 | if (quant < intra_dc_threshold) { |
332 : | Isibaar | 1.1 | int dc_size; |
333 : | int dc_dif; | ||
334 : | |||
335 : | edgomez | 1.19 | dc_size = i < 4 ? get_dc_size_lum(bs) : get_dc_size_chrom(bs); |
336 : | dc_dif = dc_size ? get_dc_dif(bs, dc_size) : 0; | ||
337 : | Isibaar | 1.1 | |
338 : | edgomez | 1.19 | if (dc_size > 8) { |
339 : | edgomez | 1.47 | BitstreamSkip(bs, 1); // marker |
340 : | Isibaar | 1.1 | } |
341 : | edgomez | 1.19 | |
342 : | block[i * 64 + 0] = dc_dif; | ||
343 : | Isibaar | 1.1 | start_coeff = 1; |
344 : | chenm001 | 1.26 | |
345 : | DPRINTF(DPRINTF_COEFF,"block[0] %i", dc_dif); | ||
346 : | edgomez | 1.19 | } else { |
347 : | Isibaar | 1.1 | start_coeff = 0; |
348 : | } | ||
349 : | |||
350 : | start_timer(); | ||
351 : | edgomez | 1.47 | if (cbp & (1 << (5 - i))) // coded |
352 : | Isibaar | 1.1 | { |
353 : | edgomez | 1.47 | int direction = dec->alternate_vertical_scan ? |
354 : | 2 : pMB->acpred_directions[i]; | ||
355 : | |||
356 : | get_intra_block(bs, &block[i * 64], direction, start_coeff); | ||
357 : | Isibaar | 1.1 | } |
358 : | stop_coding_timer(); | ||
359 : | |||
360 : | start_timer(); | ||
361 : | edgomez | 1.19 | add_acdc(pMB, i, &block[i * 64], iDcScaler, predictors); |
362 : | Isibaar | 1.1 | stop_prediction_timer(); |
363 : | |||
364 : | start_timer(); | ||
365 : | edgomez | 1.19 | if (dec->quant_type == 0) { |
366 : | dequant_intra(&data[i * 64], &block[i * 64], iQuant, iDcScaler); | ||
367 : | } else { | ||
368 : | dequant4_intra(&data[i * 64], &block[i * 64], iQuant, iDcScaler); | ||
369 : | Isibaar | 1.1 | } |
370 : | stop_iquant_timer(); | ||
371 : | |||
372 : | start_timer(); | ||
373 : | edgomez | 1.19 | idct(&data[i * 64]); |
374 : | Isibaar | 1.1 | stop_idct_timer(); |
375 : | edgomez | 1.47 | |
376 : | h | 1.5 | } |
377 : | Isibaar | 1.1 | |
378 : | edgomez | 1.19 | if (dec->interlacing && pMB->field_dct) { |
379 : | h | 1.8 | next_block = stride; |
380 : | stride *= 2; | ||
381 : | Isibaar | 1.1 | } |
382 : | h | 1.5 | |
383 : | start_timer(); | ||
384 : | edgomez | 1.47 | |
385 : | if (reduced_resolution) | ||
386 : | { | ||
387 : | next_block*=2; | ||
388 : | copy_upsampled_8x8_16to8(pY_Cur, &data[0 * 64], stride); | ||
389 : | copy_upsampled_8x8_16to8(pY_Cur + 16, &data[1 * 64], stride); | ||
390 : | copy_upsampled_8x8_16to8(pY_Cur + next_block, &data[2 * 64], stride); | ||
391 : | copy_upsampled_8x8_16to8(pY_Cur + 16 + next_block, &data[3 * 64], stride); | ||
392 : | copy_upsampled_8x8_16to8(pU_Cur, &data[4 * 64], stride2); | ||
393 : | copy_upsampled_8x8_16to8(pV_Cur, &data[5 * 64], stride2); | ||
394 : | }else{ | ||
395 : | transfer_16to8copy(pY_Cur, &data[0 * 64], stride); | ||
396 : | transfer_16to8copy(pY_Cur + 8, &data[1 * 64], stride); | ||
397 : | transfer_16to8copy(pY_Cur + next_block, &data[2 * 64], stride); | ||
398 : | transfer_16to8copy(pY_Cur + 8 + next_block, &data[3 * 64], stride); | ||
399 : | transfer_16to8copy(pU_Cur, &data[4 * 64], stride2); | ||
400 : | transfer_16to8copy(pV_Cur, &data[5 * 64], stride2); | ||
401 : | } | ||
402 : | h | 1.5 | stop_transfer_timer(); |
403 : | Isibaar | 1.1 | } |
404 : | |||
405 : | |||
406 : | |||
407 : | |||
408 : | edgomez | 1.47 | // decode an inter macroblock |
409 : | Isibaar | 1.1 | |
410 : | edgomez | 1.19 | void |
411 : | decoder_mbinter(DECODER * dec, | ||
412 : | const MACROBLOCK * pMB, | ||
413 : | const uint32_t x_pos, | ||
414 : | const uint32_t y_pos, | ||
415 : | edgomez | 1.47 | const uint32_t fcode, |
416 : | edgomez | 1.19 | const uint32_t cbp, |
417 : | Bitstream * bs, | ||
418 : | const uint32_t quant, | ||
419 : | edgomez | 1.47 | const uint32_t rounding, |
420 : | const int reduced_resolution) | ||
421 : | Isibaar | 1.1 | { |
422 : | edgomez | 1.7 | |
423 : | edgomez | 1.19 | DECLARE_ALIGNED_MATRIX(block, 6, 64, int16_t, CACHE_LINE); |
424 : | edgomez | 1.7 | DECLARE_ALIGNED_MATRIX(data, 6, 64, int16_t, CACHE_LINE); |
425 : | h | 1.5 | |
426 : | h | 1.8 | uint32_t stride = dec->edged_width; |
427 : | uint32_t stride2 = stride / 2; | ||
428 : | edgomez | 1.47 | uint32_t next_block = stride * (reduced_resolution ? 16 : 8); |
429 : | edgomez | 1.7 | uint32_t i; |
430 : | uint32_t iQuant = pMB->quant; | ||
431 : | h | 1.5 | uint8_t *pY_Cur, *pU_Cur, *pV_Cur; |
432 : | edgomez | 1.47 | |
433 : | Isibaar | 1.1 | int uv_dx, uv_dy; |
434 : | edgomez | 1.47 | VECTOR mv[4]; /* local copy of mvs */ |
435 : | |||
436 : | if (reduced_resolution) { | ||
437 : | pY_Cur = dec->cur.y + (y_pos << 5) * stride + (x_pos << 5); | ||
438 : | pU_Cur = dec->cur.u + (y_pos << 4) * stride2 + (x_pos << 4); | ||
439 : | pV_Cur = dec->cur.v + (y_pos << 4) * stride2 + (x_pos << 4); | ||
440 : | for (i = 0; i < 4; i++) { | ||
441 : | mv[i].x = RRV_MV_SCALEUP(pMB->mvs[i].x); | ||
442 : | mv[i].y = RRV_MV_SCALEUP(pMB->mvs[i].y); | ||
443 : | } | ||
444 : | } else { | ||
445 : | pY_Cur = dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); | ||
446 : | pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); | ||
447 : | pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); | ||
448 : | for (i = 0; i < 4; i++) | ||
449 : | mv[i] = pMB->mvs[i]; | ||
450 : | } | ||
451 : | |||
452 : | if (pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q) { | ||
453 : | |||
454 : | uv_dx = mv[0].x / (1 + dec->quarterpel); | ||
455 : | uv_dy = mv[0].y / (1 + dec->quarterpel); | ||
456 : | |||
457 : | uv_dx = (uv_dx >> 1) + roundtab_79[uv_dx & 0x3]; | ||
458 : | uv_dy = (uv_dy >> 1) + roundtab_79[uv_dy & 0x3]; | ||
459 : | |||
460 : | start_timer(); | ||
461 : | if (reduced_resolution) | ||
462 : | { | ||
463 : | interpolate32x32_switch(dec->cur.y, dec->refn[0].y, 32*x_pos, 32*y_pos, | ||
464 : | mv[0].x, mv[0].y, stride, rounding); | ||
465 : | interpolate16x16_switch(dec->cur.u, dec->refn[0].u, 16 * x_pos, 16 * y_pos, | ||
466 : | uv_dx, uv_dy, stride2, rounding); | ||
467 : | interpolate16x16_switch(dec->cur.v, dec->refn[0].v, 16 * x_pos, 16 * y_pos, | ||
468 : | uv_dx, uv_dy, stride2, rounding); | ||
469 : | Isibaar | 1.1 | |
470 : | edgomez | 1.47 | } |
471 : | else | ||
472 : | { | ||
473 : | if(dec->quarterpel) { | ||
474 : | interpolate16x16_quarterpel(dec->cur.y, dec->refn[0].y, dec->qtmp.y, dec->qtmp.y + 64, | ||
475 : | dec->qtmp.y + 128, 16*x_pos, 16*y_pos, | ||
476 : | mv[0].x, mv[0].y, stride, rounding); | ||
477 : | } | ||
478 : | else { | ||
479 : | interpolate16x16_switch(dec->cur.y, dec->refn[0].y, 16*x_pos, 16*y_pos, | ||
480 : | mv[0].x, mv[0].y, stride, rounding); | ||
481 : | } | ||
482 : | h | 1.5 | |
483 : | edgomez | 1.47 | interpolate8x8_switch(dec->cur.u, dec->refn[0].u, 8 * x_pos, 8 * y_pos, |
484 : | uv_dx, uv_dy, stride2, rounding); | ||
485 : | interpolate8x8_switch(dec->cur.v, dec->refn[0].v, 8 * x_pos, 8 * y_pos, | ||
486 : | uv_dx, uv_dy, stride2, rounding); | ||
487 : | } | ||
488 : | stop_comp_timer(); | ||
489 : | Isibaar | 1.1 | |
490 : | edgomez | 1.47 | } else { /* MODE_INTER4V */ |
491 : | Isibaar | 1.1 | int sum; |
492 : | edgomez | 1.47 | |
493 : | if(dec->quarterpel) | ||
494 : | sum = (mv[0].x / 2) + (mv[1].x / 2) + (mv[2].x / 2) + (mv[3].x / 2); | ||
495 : | else | ||
496 : | sum = mv[0].x + mv[1].x + mv[2].x + mv[3].x; | ||
497 : | |||
498 : | uv_dx = (sum >> 3) + roundtab_76[sum & 0xf]; | ||
499 : | |||
500 : | if(dec->quarterpel) | ||
501 : | sum = (mv[0].y / 2) + (mv[1].y / 2) + (mv[2].y / 2) + (mv[3].y / 2); | ||
502 : | else | ||
503 : | sum = mv[0].y + mv[1].y + mv[2].y + mv[3].y; | ||
504 : | |||
505 : | uv_dy = (sum >> 3) + roundtab_76[sum & 0xf]; | ||
506 : | |||
507 : | start_timer(); | ||
508 : | if (reduced_resolution) | ||
509 : | { | ||
510 : | interpolate16x16_switch(dec->cur.y, dec->refn[0].y, 32*x_pos, 32*y_pos, | ||
511 : | mv[0].x, mv[0].y, stride, rounding); | ||
512 : | interpolate16x16_switch(dec->cur.y, dec->refn[0].y , 32*x_pos + 16, 32*y_pos, | ||
513 : | mv[1].x, mv[1].y, stride, rounding); | ||
514 : | interpolate16x16_switch(dec->cur.y, dec->refn[0].y , 32*x_pos, 32*y_pos + 16, | ||
515 : | mv[2].x, mv[2].y, stride, rounding); | ||
516 : | interpolate16x16_switch(dec->cur.y, dec->refn[0].y , 32*x_pos + 16, 32*y_pos + 16, | ||
517 : | mv[3].x, mv[3].y, stride, rounding); | ||
518 : | interpolate16x16_switch(dec->cur.u, dec->refn[0].u , 16 * x_pos, 16 * y_pos, | ||
519 : | uv_dx, uv_dy, stride2, rounding); | ||
520 : | interpolate16x16_switch(dec->cur.v, dec->refn[0].v , 16 * x_pos, 16 * y_pos, | ||
521 : | uv_dx, uv_dy, stride2, rounding); | ||
522 : | |||
523 : | // set_block(pY_Cur, stride, 32, 32, 127); | ||
524 : | } | ||
525 : | else | ||
526 : | { | ||
527 : | if(dec->quarterpel) { | ||
528 : | interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y , dec->qtmp.y, dec->qtmp.y + 64, | ||
529 : | dec->qtmp.y + 128, 16*x_pos, 16*y_pos, | ||
530 : | mv[0].x, mv[0].y, stride, rounding); | ||
531 : | interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y , dec->qtmp.y, dec->qtmp.y + 64, | ||
532 : | dec->qtmp.y + 128, 16*x_pos + 8, 16*y_pos, | ||
533 : | mv[1].x, mv[1].y, stride, rounding); | ||
534 : | interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y , dec->qtmp.y, dec->qtmp.y + 64, | ||
535 : | dec->qtmp.y + 128, 16*x_pos, 16*y_pos + 8, | ||
536 : | mv[2].x, mv[2].y, stride, rounding); | ||
537 : | interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y , dec->qtmp.y, dec->qtmp.y + 64, | ||
538 : | dec->qtmp.y + 128, 16*x_pos + 8, 16*y_pos + 8, | ||
539 : | mv[3].x, mv[3].y, stride, rounding); | ||
540 : | } | ||
541 : | else { | ||
542 : | interpolate8x8_switch(dec->cur.y, dec->refn[0].y , 16*x_pos, 16*y_pos, | ||
543 : | mv[0].x, mv[0].y, stride, rounding); | ||
544 : | interpolate8x8_switch(dec->cur.y, dec->refn[0].y , 16*x_pos + 8, 16*y_pos, | ||
545 : | mv[1].x, mv[1].y, stride, rounding); | ||
546 : | interpolate8x8_switch(dec->cur.y, dec->refn[0].y , 16*x_pos, 16*y_pos + 8, | ||
547 : | mv[2].x, mv[2].y, stride, rounding); | ||
548 : | interpolate8x8_switch(dec->cur.y, dec->refn[0].y , 16*x_pos + 8, 16*y_pos + 8, | ||
549 : | mv[3].x, mv[3].y, stride, rounding); | ||
550 : | } | ||
551 : | |||
552 : | interpolate8x8_switch(dec->cur.u, dec->refn[0].u , 8 * x_pos, 8 * y_pos, | ||
553 : | uv_dx, uv_dy, stride2, rounding); | ||
554 : | interpolate8x8_switch(dec->cur.v, dec->refn[0].v , 8 * x_pos, 8 * y_pos, | ||
555 : | uv_dx, uv_dy, stride2, rounding); | ||
556 : | } | ||
557 : | stop_comp_timer(); | ||
558 : | } | ||
559 : | |||
560 : | for (i = 0; i < 6; i++) { | ||
561 : | int direction = dec->alternate_vertical_scan ? 2 : 0; | ||
562 : | edgomez | 1.19 | |
563 : | edgomez | 1.47 | if (cbp & (1 << (5 - i))) // coded |
564 : | { | ||
565 : | memset(&block[i * 64], 0, 64 * sizeof(int16_t)); // clear | ||
566 : | |||
567 : | start_timer(); | ||
568 : | get_inter_block(bs, &block[i * 64], direction); | ||
569 : | stop_coding_timer(); | ||
570 : | |||
571 : | start_timer(); | ||
572 : | if (dec->quant_type == 0) { | ||
573 : | dequant_inter(&data[i * 64], &block[i * 64], iQuant); | ||
574 : | } else { | ||
575 : | dequant4_inter(&data[i * 64], &block[i * 64], iQuant); | ||
576 : | } | ||
577 : | stop_iquant_timer(); | ||
578 : | |||
579 : | start_timer(); | ||
580 : | idct(&data[i * 64]); | ||
581 : | stop_idct_timer(); | ||
582 : | } | ||
583 : | } | ||
584 : | Isibaar | 1.1 | |
585 : | edgomez | 1.47 | if (dec->interlacing && pMB->field_dct) { |
586 : | next_block = stride; | ||
587 : | stride *= 2; | ||
588 : | } | ||
589 : | Isibaar | 1.34 | |
590 : | edgomez | 1.47 | start_timer(); |
591 : | if (reduced_resolution) | ||
592 : | { | ||
593 : | if (cbp & 32) | ||
594 : | add_upsampled_8x8_16to8(pY_Cur, &data[0 * 64], stride); | ||
595 : | if (cbp & 16) | ||
596 : | add_upsampled_8x8_16to8(pY_Cur + 16, &data[1 * 64], stride); | ||
597 : | if (cbp & 8) | ||
598 : | add_upsampled_8x8_16to8(pY_Cur + next_block, &data[2 * 64], stride); | ||
599 : | if (cbp & 4) | ||
600 : | add_upsampled_8x8_16to8(pY_Cur + 16 + next_block, &data[3 * 64], stride); | ||
601 : | if (cbp & 2) | ||
602 : | add_upsampled_8x8_16to8(pU_Cur, &data[4 * 64], stride2); | ||
603 : | if (cbp & 1) | ||
604 : | add_upsampled_8x8_16to8(pV_Cur, &data[5 * 64], stride2); | ||
605 : | } | ||
606 : | else | ||
607 : | { | ||
608 : | if (cbp & 32) | ||
609 : | transfer_16to8add(pY_Cur, &data[0 * 64], stride); | ||
610 : | if (cbp & 16) | ||
611 : | transfer_16to8add(pY_Cur + 8, &data[1 * 64], stride); | ||
612 : | if (cbp & 8) | ||
613 : | transfer_16to8add(pY_Cur + next_block, &data[2 * 64], stride); | ||
614 : | if (cbp & 4) | ||
615 : | transfer_16to8add(pY_Cur + 8 + next_block, &data[3 * 64], stride); | ||
616 : | if (cbp & 2) | ||
617 : | transfer_16to8add(pU_Cur, &data[4 * 64], stride2); | ||
618 : | if (cbp & 1) | ||
619 : | transfer_16to8add(pV_Cur, &data[5 * 64], stride2); | ||
620 : | Isibaar | 1.1 | } |
621 : | edgomez | 1.47 | stop_transfer_timer(); |
622 : | } | ||
623 : | |||
624 : | static __inline int gmc_sanitize(int value, int quarterpel, int fcode) | ||
625 : | { | ||
626 : | int length = 1 << (fcode+4); | ||
627 : | |||
628 : | // if (quarterpel) value *= 2; | ||
629 : | |||
630 : | if (value < -length) | ||
631 : | return -length; | ||
632 : | else if (value >= length) | ||
633 : | return length-1; | ||
634 : | else return value; | ||
635 : | } | ||
636 : | |||
637 : | |||
638 : | static void | ||
639 : | decoder_mbgmc(DECODER * dec, | ||
640 : | MACROBLOCK * const pMB, | ||
641 : | const uint32_t x_pos, | ||
642 : | const uint32_t y_pos, | ||
643 : | const uint32_t fcode, | ||
644 : | const uint32_t cbp, | ||
645 : | Bitstream * bs, | ||
646 : | const uint32_t quant, | ||
647 : | const uint32_t rounding, | ||
648 : | const int reduced_resolution) /* no reduced res support */ | ||
649 : | { | ||
650 : | |||
651 : | DECLARE_ALIGNED_MATRIX(block, 6, 64, int16_t, CACHE_LINE); | ||
652 : | DECLARE_ALIGNED_MATRIX(data, 6, 64, int16_t, CACHE_LINE); | ||
653 : | |||
654 : | const uint32_t stride = dec->edged_width; | ||
655 : | const uint32_t stride2 = stride / 2; | ||
656 : | const uint32_t next_block = stride * (reduced_resolution ? 16 : 8); | ||
657 : | uint32_t i; | ||
658 : | const uint32_t iQuant = pMB->quant; | ||
659 : | uint8_t *const pY_Cur=dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); | ||
660 : | uint8_t *const pU_Cur=dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); | ||
661 : | uint8_t *const pV_Cur=dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); | ||
662 : | |||
663 : | pMB->mvs[0] = pMB->mvs[1] = pMB->mvs[2] = pMB->mvs[3] = pMB->amv; | ||
664 : | Isibaar | 1.1 | |
665 : | start_timer(); | ||
666 : | edgomez | 1.47 | |
667 : | /* this is where the calculations are done */ | ||
668 : | |||
669 : | { | ||
670 : | pMB->amv = generate_GMCimageMB(&dec->gmc_data, &dec->refn[0], x_pos, y_pos, | ||
671 : | stride, stride2, dec->quarterpel, rounding, &dec->cur); | ||
672 : | |||
673 : | pMB->amv.x = gmc_sanitize(pMB->amv.x, dec->quarterpel, fcode); | ||
674 : | pMB->amv.y = gmc_sanitize(pMB->amv.y, dec->quarterpel, fcode); | ||
675 : | } | ||
676 : | pMB->mvs[0] = pMB->mvs[1] = pMB->mvs[2] = pMB->mvs[3] = pMB->amv; | ||
677 : | |||
678 : | /* transfer16x16_copy(pY_Cur, dec->gmc.y + (y_pos << 4)*stride + (x_pos << 4), stride); | ||
679 : | transfer8x8_copy(pU_Cur, dec->gmc.u + (y_pos << 3)*stride2 + (x_pos << 3), stride2); | ||
680 : | transfer8x8_copy(pV_Cur, dec->gmc.v + (y_pos << 3)*stride2 + (x_pos << 3), stride2); | ||
681 : | */ | ||
682 : | |||
683 : | |||
684 : | stop_transfer_timer(); | ||
685 : | |||
686 : | if (!cbp) return; | ||
687 : | Isibaar | 1.1 | |
688 : | edgomez | 1.19 | for (i = 0; i < 6; i++) { |
689 : | edgomez | 1.47 | int direction = dec->alternate_vertical_scan ? 2 : 0; |
690 : | |||
691 : | if (cbp & (1 << (5 - i))) // coded | ||
692 : | Isibaar | 1.1 | { |
693 : | edgomez | 1.47 | memset(&block[i * 64], 0, 64 * sizeof(int16_t)); // clear |
694 : | Isibaar | 1.1 | |
695 : | start_timer(); | ||
696 : | edgomez | 1.47 | get_inter_block(bs, &block[i * 64], direction); |
697 : | Isibaar | 1.1 | stop_coding_timer(); |
698 : | |||
699 : | start_timer(); | ||
700 : | edgomez | 1.19 | if (dec->quant_type == 0) { |
701 : | dequant_inter(&data[i * 64], &block[i * 64], iQuant); | ||
702 : | } else { | ||
703 : | dequant4_inter(&data[i * 64], &block[i * 64], iQuant); | ||
704 : | Isibaar | 1.1 | } |
705 : | stop_iquant_timer(); | ||
706 : | |||
707 : | start_timer(); | ||
708 : | edgomez | 1.19 | idct(&data[i * 64]); |
709 : | Isibaar | 1.1 | stop_idct_timer(); |
710 : | h | 1.5 | } |
711 : | } | ||
712 : | Isibaar | 1.1 | |
713 : | edgomez | 1.47 | /* interlace + GMC is this possible ??? */ |
714 : | /* if (dec->interlacing && pMB->field_dct) { | ||
715 : | h | 1.8 | next_block = stride; |
716 : | stride *= 2; | ||
717 : | Isibaar | 1.1 | } |
718 : | edgomez | 1.47 | */ |
719 : | h | 1.5 | start_timer(); |
720 : | if (cbp & 32) | ||
721 : | edgomez | 1.19 | transfer_16to8add(pY_Cur, &data[0 * 64], stride); |
722 : | h | 1.5 | if (cbp & 16) |
723 : | edgomez | 1.19 | transfer_16to8add(pY_Cur + 8, &data[1 * 64], stride); |
724 : | h | 1.5 | if (cbp & 8) |
725 : | edgomez | 1.19 | transfer_16to8add(pY_Cur + next_block, &data[2 * 64], stride); |
726 : | h | 1.5 | if (cbp & 4) |
727 : | edgomez | 1.19 | transfer_16to8add(pY_Cur + 8 + next_block, &data[3 * 64], stride); |
728 : | h | 1.5 | if (cbp & 2) |
729 : | edgomez | 1.19 | transfer_16to8add(pU_Cur, &data[4 * 64], stride2); |
730 : | h | 1.5 | if (cbp & 1) |
731 : | edgomez | 1.19 | transfer_16to8add(pV_Cur, &data[5 * 64], stride2); |
732 : | h | 1.5 | stop_transfer_timer(); |
733 : | Isibaar | 1.1 | } |
734 : | |||
735 : | |||
736 : | edgomez | 1.19 | void |
737 : | decoder_iframe(DECODER * dec, | ||
738 : | Bitstream * bs, | ||
739 : | edgomez | 1.47 | int reduced_resolution, |
740 : | edgomez | 1.19 | int quant, |
741 : | int intra_dc_threshold) | ||
742 : | Isibaar | 1.1 | { |
743 : | chenm001 | 1.26 | uint32_t bound; |
744 : | uint32_t x, y; | ||
745 : | edgomez | 1.47 | uint32_t mb_width = dec->mb_width; |
746 : | uint32_t mb_height = dec->mb_height; | ||
747 : | |||
748 : | if (reduced_resolution) | ||
749 : | { | ||
750 : | mb_width = (dec->width + 31) / 32; | ||
751 : | mb_height = (dec->height + 31) / 32; | ||
752 : | } | ||
753 : | chenm001 | 1.25 | |
754 : | chenm001 | 1.26 | bound = 0; |
755 : | edgomez | 1.7 | |
756 : | edgomez | 1.47 | for (y = 0; y < mb_height; y++) { |
757 : | for (x = 0; x < mb_width; x++) { | ||
758 : | chenm001 | 1.26 | MACROBLOCK *mb; |
759 : | Isibaar | 1.1 | uint32_t mcbpc; |
760 : | uint32_t cbpc; | ||
761 : | uint32_t acpred_flag; | ||
762 : | uint32_t cbpy; | ||
763 : | uint32_t cbp; | ||
764 : | |||
765 : | chenm001 | 1.26 | while (BitstreamShowBits(bs, 9) == 1) |
766 : | BitstreamSkip(bs, 9); | ||
767 : | |||
768 : | if (check_resync_marker(bs, 0)) | ||
769 : | { | ||
770 : | edgomez | 1.47 | bound = read_video_packet_header(bs, dec, 0, |
771 : | &quant, NULL, NULL, &intra_dc_threshold); | ||
772 : | x = bound % mb_width; | ||
773 : | y = bound / mb_width; | ||
774 : | chenm001 | 1.26 | } |
775 : | mb = &dec->mbs[y * dec->mb_width + x]; | ||
776 : | |||
777 : | DPRINTF(DPRINTF_MB, "macroblock (%i,%i) %08x", x, y, BitstreamShowBits(bs, 32)); | ||
778 : | |||
779 : | Isibaar | 1.1 | mcbpc = get_mcbpc_intra(bs); |
780 : | mb->mode = mcbpc & 7; | ||
781 : | cbpc = (mcbpc >> 4); | ||
782 : | |||
783 : | acpred_flag = BitstreamGetBit(bs); | ||
784 : | |||
785 : | cbpy = get_cbpy(bs, 1); | ||
786 : | cbp = (cbpy << 2) | cbpc; | ||
787 : | |||
788 : | edgomez | 1.19 | if (mb->mode == MODE_INTRA_Q) { |
789 : | quant += dquant_table[BitstreamGetBits(bs, 2)]; | ||
790 : | if (quant > 31) { | ||
791 : | Isibaar | 1.1 | quant = 31; |
792 : | edgomez | 1.19 | } else if (quant < 1) { |
793 : | Isibaar | 1.1 | quant = 1; |
794 : | } | ||
795 : | } | ||
796 : | mb->quant = quant; | ||
797 : | chenm001 | 1.30 | mb->mvs[0].x = mb->mvs[0].y = |
798 : | mb->mvs[1].x = mb->mvs[1].y = | ||
799 : | mb->mvs[2].x = mb->mvs[2].y = | ||
800 : | mb->mvs[3].x = mb->mvs[3].y =0; | ||
801 : | h | 1.5 | |
802 : | edgomez | 1.19 | if (dec->interlacing) { |
803 : | h | 1.5 | mb->field_dct = BitstreamGetBit(bs); |
804 : | edgomez | 1.47 | DPRINTF(DPRINTF_MB,"deci: field_dct: %i", mb->field_dct); |
805 : | h | 1.5 | } |
806 : | Isibaar | 1.1 | |
807 : | edgomez | 1.19 | decoder_mbintra(dec, mb, x, y, acpred_flag, cbp, bs, quant, |
808 : | edgomez | 1.47 | intra_dc_threshold, bound, reduced_resolution); |
809 : | |||
810 : | Isibaar | 1.1 | } |
811 : | albeu | 1.32 | if(dec->out_frm) |
812 : | edgomez | 1.47 | output_slice(&dec->cur, dec->edged_width,dec->width,dec->out_frm,0,y,mb_width); |
813 : | Isibaar | 1.1 | } |
814 : | edgomez | 1.7 | |
815 : | Isibaar | 1.1 | } |
816 : | |||
817 : | |||
818 : | edgomez | 1.19 | void |
819 : | get_motion_vector(DECODER * dec, | ||
820 : | Bitstream * bs, | ||
821 : | int x, | ||
822 : | int y, | ||
823 : | int k, | ||
824 : | edgomez | 1.47 | VECTOR * ret_mv, |
825 : | chenm001 | 1.26 | int fcode, |
826 : | const int bound) | ||
827 : | Isibaar | 1.1 | { |
828 : | edgomez | 1.7 | |
829 : | Isibaar | 1.1 | int scale_fac = 1 << (fcode - 1); |
830 : | int high = (32 * scale_fac) - 1; | ||
831 : | int low = ((-32) * scale_fac); | ||
832 : | int range = (64 * scale_fac); | ||
833 : | |||
834 : | chenm001 | 1.26 | VECTOR pmv; |
835 : | edgomez | 1.47 | VECTOR mv; |
836 : | Isibaar | 1.1 | |
837 : | chenm001 | 1.26 | pmv = get_pmv2(dec->mbs, dec->mb_width, bound, x, y, k); |
838 : | Isibaar | 1.1 | |
839 : | edgomez | 1.47 | mv.x = get_mv(bs, fcode); |
840 : | mv.y = get_mv(bs, fcode); | ||
841 : | edgomez | 1.19 | |
842 : | edgomez | 1.47 | DPRINTF(DPRINTF_MV,"mv_diff (%i,%i) pred (%i,%i) result (%i,%i)", mv.x, mv.y, pmv.x, pmv.y, mv.x+pmv.x, mv.y+pmv.y); |
843 : | chenm001 | 1.26 | |
844 : | edgomez | 1.47 | mv.x += pmv.x; |
845 : | mv.y += pmv.y; | ||
846 : | Isibaar | 1.1 | |
847 : | edgomez | 1.47 | if (mv.x < low) { |
848 : | mv.x += range; | ||
849 : | } else if (mv.x > high) { | ||
850 : | mv.x -= range; | ||
851 : | Isibaar | 1.1 | } |
852 : | |||
853 : | edgomez | 1.47 | if (mv.y < low) { |
854 : | mv.y += range; | ||
855 : | } else if (mv.y > high) { | ||
856 : | mv.y -= range; | ||
857 : | Isibaar | 1.1 | } |
858 : | |||
859 : | edgomez | 1.47 | ret_mv->x = mv.x; |
860 : | ret_mv->y = mv.y; | ||
861 : | } | ||
862 : | |||
863 : | |||
864 : | Isibaar | 1.1 | |
865 : | |||
866 : | |||
867 : | edgomez | 1.47 | /* for P_VOP set gmc_warp to NULL */ |
868 : | edgomez | 1.19 | void |
869 : | decoder_pframe(DECODER * dec, | ||
870 : | Bitstream * bs, | ||
871 : | int rounding, | ||
872 : | edgomez | 1.47 | int reduced_resolution, |
873 : | edgomez | 1.19 | int quant, |
874 : | int fcode, | ||
875 : | edgomez | 1.47 | int intra_dc_threshold, |
876 : | const WARPPOINTS *const gmc_warp) | ||
877 : | Isibaar | 1.1 | { |
878 : | edgomez | 1.7 | |
879 : | Isibaar | 1.1 | uint32_t x, y; |
880 : | chenm001 | 1.26 | uint32_t bound; |
881 : | albeu | 1.32 | int cp_mb, st_mb; |
882 : | edgomez | 1.47 | uint32_t mb_width = dec->mb_width; |
883 : | uint32_t mb_height = dec->mb_height; | ||
884 : | |||
885 : | if (reduced_resolution) | ||
886 : | { | ||
887 : | mb_width = (dec->width + 31) / 32; | ||
888 : | mb_height = (dec->height + 31) / 32; | ||
889 : | } | ||
890 : | Isibaar | 1.1 | |
891 : | start_timer(); | ||
892 : | edgomez | 1.19 | image_setedges(&dec->refn[0], dec->edged_width, dec->edged_height, |
893 : | h | 1.41 | dec->width, dec->height); |
894 : | Isibaar | 1.1 | stop_edges_timer(); |
895 : | |||
896 : | edgomez | 1.47 | if (gmc_warp) |
897 : | { | ||
898 : | |||
899 : | // accuracy: 0==1/2, 1=1/4, 2=1/8, 3=1/16 | ||
900 : | if ( (dec->sprite_warping_accuracy != 3) || (dec->sprite_warping_points != 2) ) | ||
901 : | { | ||
902 : | fprintf(stderr,"Wrong GMC parameters acc=%d(-> 1/%d), %d!!!\n", | ||
903 : | dec->sprite_warping_accuracy,(2<<dec->sprite_warping_accuracy), | ||
904 : | dec->sprite_warping_points); | ||
905 : | } | ||
906 : | |||
907 : | generate_GMCparameters( dec->sprite_warping_points, | ||
908 : | (2 << dec->sprite_warping_accuracy), gmc_warp, | ||
909 : | dec->width, dec->height, &dec->gmc_data); | ||
910 : | |||
911 : | /* image warping is done block-based in decoder_mbgmc(), now */ | ||
912 : | /* | ||
913 : | generate_GMCimage(&dec->gmc_data, &dec->refn[0], | ||
914 : | mb_width, mb_height, | ||
915 : | dec->edged_width, dec->edged_width/2, | ||
916 : | fcode, dec->quarterpel, 0, | ||
917 : | rounding, dec->mbs, &dec->gmc); | ||
918 : | */ | ||
919 : | } | ||
920 : | |||
921 : | chenm001 | 1.26 | bound = 0; |
922 : | |||
923 : | edgomez | 1.47 | for (y = 0; y < mb_height; y++) { |
924 : | albeu | 1.32 | cp_mb = st_mb = 0; |
925 : | edgomez | 1.47 | for (x = 0; x < mb_width; x++) { |
926 : | chenm001 | 1.26 | MACROBLOCK *mb; |
927 : | |||
928 : | edgomez | 1.47 | // skip stuffing |
929 : | chenm001 | 1.26 | while (BitstreamShowBits(bs, 10) == 1) |
930 : | BitstreamSkip(bs, 10); | ||
931 : | |||
932 : | if (check_resync_marker(bs, fcode - 1)) | ||
933 : | { | ||
934 : | edgomez | 1.47 | bound = read_video_packet_header(bs, dec, fcode - 1, |
935 : | &quant, &fcode, NULL, &intra_dc_threshold); | ||
936 : | x = bound % mb_width; | ||
937 : | y = bound / mb_width; | ||
938 : | chenm001 | 1.26 | } |
939 : | mb = &dec->mbs[y * dec->mb_width + x]; | ||
940 : | |||
941 : | DPRINTF(DPRINTF_MB, "macroblock (%i,%i) %08x", x, y, BitstreamShowBits(bs, 32)); | ||
942 : | suxen_drol | 1.23 | |
943 : | edgomez | 1.47 | //if (!(dec->mb_skip[y*dec->mb_width + x]=BitstreamGetBit(bs))) // not_coded |
944 : | if (!(BitstreamGetBit(bs))) // block _is_ coded | ||
945 : | Isibaar | 1.1 | { |
946 : | uint32_t mcbpc; | ||
947 : | uint32_t cbpc; | ||
948 : | uint32_t acpred_flag; | ||
949 : | uint32_t cbpy; | ||
950 : | uint32_t cbp; | ||
951 : | uint32_t intra; | ||
952 : | edgomez | 1.47 | int mcsel = 0; // mcsel: '0'=local motion, '1'=GMC |
953 : | Isibaar | 1.1 | |
954 : | albeu | 1.32 | cp_mb++; |
955 : | Isibaar | 1.1 | mcbpc = get_mcbpc_inter(bs); |
956 : | mb->mode = mcbpc & 7; | ||
957 : | cbpc = (mcbpc >> 4); | ||
958 : | chenm001 | 1.26 | |
959 : | DPRINTF(DPRINTF_MB, "mode %i", mb->mode); | ||
960 : | DPRINTF(DPRINTF_MB, "cbpc %i", cbpc); | ||
961 : | edgomez | 1.2 | acpred_flag = 0; |
962 : | Isibaar | 1.1 | |
963 : | intra = (mb->mode == MODE_INTRA || mb->mode == MODE_INTRA_Q); | ||
964 : | edgomez | 1.19 | |
965 : | if (intra) { | ||
966 : | Isibaar | 1.1 | acpred_flag = BitstreamGetBit(bs); |
967 : | } | ||
968 : | |||
969 : | edgomez | 1.47 | if (gmc_warp && (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q)) |
970 : | { | ||
971 : | mcsel = BitstreamGetBit(bs); | ||
972 : | } | ||
973 : | |||
974 : | chenm001 | 1.26 | cbpy = get_cbpy(bs, intra); |
975 : | edgomez | 1.47 | DPRINTF(DPRINTF_MB, "cbpy %i mcsel %i ", cbpy,mcsel); |
976 : | chenm001 | 1.25 | |
977 : | Isibaar | 1.1 | cbp = (cbpy << 2) | cbpc; |
978 : | |||
979 : | edgomez | 1.19 | if (mb->mode == MODE_INTER_Q || mb->mode == MODE_INTRA_Q) { |
980 : | chenm001 | 1.26 | int dquant = dquant_table[BitstreamGetBits(bs, 2)]; |
981 : | DPRINTF(DPRINTF_MB, "dquant %i", dquant); | ||
982 : | quant += dquant; | ||
983 : | edgomez | 1.19 | if (quant > 31) { |
984 : | Isibaar | 1.1 | quant = 31; |
985 : | chenm001 | 1.26 | } else if (quant < 1) { |
986 : | Isibaar | 1.1 | quant = 1; |
987 : | } | ||
988 : | chenm001 | 1.26 | DPRINTF(DPRINTF_MB, "quant %i", quant); |
989 : | Isibaar | 1.1 | } |
990 : | mb->quant = quant; | ||
991 : | h | 1.5 | |
992 : | edgomez | 1.19 | if (dec->interlacing) { |
993 : | h | 1.37 | if (cbp || intra) { |
994 : | mb->field_dct = BitstreamGetBit(bs); | ||
995 : | edgomez | 1.47 | DPRINTF(DPRINTF_MB,"decp: field_dct: %i", mb->field_dct); |
996 : | h | 1.37 | } |
997 : | h | 1.5 | |
998 : | edgomez | 1.19 | if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) { |
999 : | h | 1.5 | mb->field_pred = BitstreamGetBit(bs); |
1000 : | edgomez | 1.47 | DPRINTF(DPRINTF_MB, "decp: field_pred: %i", mb->field_pred); |
1001 : | h | 1.5 | |
1002 : | edgomez | 1.19 | if (mb->field_pred) { |
1003 : | h | 1.5 | mb->field_for_top = BitstreamGetBit(bs); |
1004 : | edgomez | 1.47 | DPRINTF(DPRINTF_MB,"decp: field_for_top: %i", mb->field_for_top); |
1005 : | h | 1.5 | mb->field_for_bot = BitstreamGetBit(bs); |
1006 : | edgomez | 1.47 | DPRINTF(DPRINTF_MB,"decp: field_for_bot: %i", mb->field_for_bot); |
1007 : | h | 1.5 | } |
1008 : | } | ||
1009 : | } | ||
1010 : | edgomez | 1.47 | |
1011 : | if (mcsel) { | ||
1012 : | decoder_mbgmc(dec, mb, x, y, fcode, cbp, bs, quant, | ||
1013 : | rounding, reduced_resolution); | ||
1014 : | continue; | ||
1015 : | |||
1016 : | } else if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) { | ||
1017 : | h | 1.5 | |
1018 : | edgomez | 1.19 | if (dec->interlacing && mb->field_pred) { |
1019 : | get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], | ||
1020 : | chenm001 | 1.26 | fcode, bound); |
1021 : | edgomez | 1.19 | get_motion_vector(dec, bs, x, y, 0, &mb->mvs[1], |
1022 : | chenm001 | 1.26 | fcode, bound); |
1023 : | edgomez | 1.19 | } else { |
1024 : | get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], | ||
1025 : | chenm001 | 1.26 | fcode, bound); |
1026 : | edgomez | 1.47 | mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = mb->mvs[0]; |
1027 : | h | 1.5 | } |
1028 : | chl | 1.35 | } else if (mb->mode == MODE_INTER4V ) { |
1029 : | |||
1030 : | chenm001 | 1.26 | get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], fcode, bound); |
1031 : | get_motion_vector(dec, bs, x, y, 1, &mb->mvs[1], fcode, bound); | ||
1032 : | get_motion_vector(dec, bs, x, y, 2, &mb->mvs[2], fcode, bound); | ||
1033 : | get_motion_vector(dec, bs, x, y, 3, &mb->mvs[3], fcode, bound); | ||
1034 : | edgomez | 1.47 | } else // MODE_INTRA, MODE_INTRA_Q |
1035 : | Isibaar | 1.1 | { |
1036 : | edgomez | 1.19 | mb->mvs[0].x = mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = |
1037 : | 0; | ||
1038 : | mb->mvs[0].y = mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = | ||
1039 : | 0; | ||
1040 : | decoder_mbintra(dec, mb, x, y, acpred_flag, cbp, bs, quant, | ||
1041 : | edgomez | 1.47 | intra_dc_threshold, bound, reduced_resolution); |
1042 : | Isibaar | 1.1 | continue; |
1043 : | } | ||
1044 : | |||
1045 : | edgomez | 1.47 | decoder_mbinter(dec, mb, x, y, fcode, cbp, bs, quant, |
1046 : | rounding, reduced_resolution); | ||
1047 : | |||
1048 : | } | ||
1049 : | else if (gmc_warp) /* a not coded S(GMC)-VOP macroblock */ | ||
1050 : | Isibaar | 1.1 | { |
1051 : | edgomez | 1.47 | mb->mode = MODE_NOT_CODED_GMC; |
1052 : | |||
1053 : | start_timer(); | ||
1054 : | |||
1055 : | decoder_mbgmc(dec, mb, x, y, fcode, 0x00, bs, quant, | ||
1056 : | rounding, reduced_resolution); | ||
1057 : | |||
1058 : | stop_transfer_timer(); | ||
1059 : | edgomez | 1.39 | |
1060 : | edgomez | 1.47 | if(dec->out_frm && cp_mb > 0) { |
1061 : | output_slice(&dec->cur, dec->edged_width,dec->width,dec->out_frm,st_mb,y,cp_mb); | ||
1062 : | cp_mb = 0; | ||
1063 : | } | ||
1064 : | st_mb = x+1; | ||
1065 : | } | ||
1066 : | else /* not coded P_VOP macroblock */ | ||
1067 : | { | ||
1068 : | chenm001 | 1.14 | mb->mode = MODE_NOT_CODED; |
1069 : | edgomez | 1.47 | |
1070 : | Isibaar | 1.1 | mb->mvs[0].x = mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = 0; |
1071 : | mb->mvs[0].y = mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = 0; | ||
1072 : | edgomez | 1.47 | // copy macroblock directly from ref to cur |
1073 : | Isibaar | 1.1 | |
1074 : | start_timer(); | ||
1075 : | |||
1076 : | edgomez | 1.47 | if (reduced_resolution) |
1077 : | { | ||
1078 : | transfer32x32_copy(dec->cur.y + (32*y)*dec->edged_width + (32*x), | ||
1079 : | dec->refn[0].y + (32*y)*dec->edged_width + (32*x), | ||
1080 : | dec->edged_width); | ||
1081 : | |||
1082 : | transfer16x16_copy(dec->cur.u + (16*y)*dec->edged_width/2 + (16*x), | ||
1083 : | dec->refn[0].u + (16*y)*dec->edged_width/2 + (16*x), | ||
1084 : | dec->edged_width/2); | ||
1085 : | |||
1086 : | transfer16x16_copy(dec->cur.v + (16*y)*dec->edged_width/2 + (16*x), | ||
1087 : | dec->refn[0].v + (16*y)*dec->edged_width/2 + (16*x), | ||
1088 : | dec->edged_width/2); | ||
1089 : | } | ||
1090 : | else | ||
1091 : | { | ||
1092 : | transfer16x16_copy(dec->cur.y + (16*y)*dec->edged_width + (16*x), | ||
1093 : | dec->refn[0].y + (16*y)*dec->edged_width + (16*x), | ||
1094 : | dec->edged_width); | ||
1095 : | |||
1096 : | transfer8x8_copy(dec->cur.u + (8*y)*dec->edged_width/2 + (8*x), | ||
1097 : | dec->refn[0].u + (8*y)*dec->edged_width/2 + (8*x), | ||
1098 : | dec->edged_width/2); | ||
1099 : | |||
1100 : | transfer8x8_copy(dec->cur.v + (8*y)*dec->edged_width/2 + (8*x), | ||
1101 : | dec->refn[0].v + (8*y)*dec->edged_width/2 + (8*x), | ||
1102 : | dec->edged_width/2); | ||
1103 : | } | ||
1104 : | |||
1105 : | Isibaar | 1.1 | stop_transfer_timer(); |
1106 : | edgomez | 1.47 | |
1107 : | albeu | 1.32 | if(dec->out_frm && cp_mb > 0) { |
1108 : | output_slice(&dec->cur, dec->edged_width,dec->width,dec->out_frm,st_mb,y,cp_mb); | ||
1109 : | cp_mb = 0; | ||
1110 : | } | ||
1111 : | st_mb = x+1; | ||
1112 : | Isibaar | 1.1 | } |
1113 : | } | ||
1114 : | albeu | 1.32 | if(dec->out_frm && cp_mb > 0) |
1115 : | output_slice(&dec->cur, dec->edged_width,dec->width,dec->out_frm,st_mb,y,cp_mb); | ||
1116 : | Isibaar | 1.1 | } |
1117 : | } | ||
1118 : | |||
1119 : | edgomez | 1.47 | |
1120 : | // add by MinChen <chenm001@163.com> | ||
1121 : | // decode B-frame motion vector | ||
1122 : | edgomez | 1.19 | void |
1123 : | edgomez | 1.47 | get_b_motion_vector(DECODER * dec, |
1124 : | Bitstream * bs, | ||
1125 : | int x, | ||
1126 : | int y, | ||
1127 : | VECTOR * mv, | ||
1128 : | int fcode, | ||
1129 : | const VECTOR pmv) | ||
1130 : | chenm001 | 1.14 | { |
1131 : | edgomez | 1.47 | int scale_fac = 1 << (fcode - 1); |
1132 : | int high = (32 * scale_fac) - 1; | ||
1133 : | int low = ((-32) * scale_fac); | ||
1134 : | int range = (64 * scale_fac); | ||
1135 : | edgomez | 1.19 | |
1136 : | edgomez | 1.47 | int mv_x, mv_y; |
1137 : | int pmv_x, pmv_y; | ||
1138 : | chenm001 | 1.14 | |
1139 : | edgomez | 1.47 | pmv_x = pmv.x; |
1140 : | pmv_y = pmv.y; | ||
1141 : | edgomez | 1.7 | |
1142 : | edgomez | 1.47 | mv_x = get_mv(bs, fcode); |
1143 : | mv_y = get_mv(bs, fcode); | ||
1144 : | Isibaar | 1.1 | |
1145 : | edgomez | 1.47 | mv_x += pmv_x; |
1146 : | mv_y += pmv_y; | ||
1147 : | albeu | 1.32 | |
1148 : | edgomez | 1.47 | if (mv_x < low) { |
1149 : | mv_x += range; | ||
1150 : | } else if (mv_x > high) { | ||
1151 : | mv_x -= range; | ||
1152 : | } | ||
1153 : | |||
1154 : | if (mv_y < low) { | ||
1155 : | mv_y += range; | ||
1156 : | } else if (mv_y > high) { | ||
1157 : | mv_y -= range; | ||
1158 : | } | ||
1159 : | |||
1160 : | mv->x = mv_x; | ||
1161 : | mv->y = mv_y; | ||
1162 : | } | ||
1163 : | |||
1164 : | |||
1165 : | // add by MinChen <chenm001@163.com> | ||
1166 : | // decode an B-frame forward & backward inter macroblock | ||
1167 : | void | ||
1168 : | decoder_bf_mbinter(DECODER * dec, | ||
1169 : | const MACROBLOCK * pMB, | ||
1170 : | const uint32_t x_pos, | ||
1171 : | const uint32_t y_pos, | ||
1172 : | const uint32_t cbp, | ||
1173 : | Bitstream * bs, | ||
1174 : | const uint32_t quant, | ||
1175 : | const uint8_t ref) | ||
1176 : | { | ||
1177 : | |||
1178 : | DECLARE_ALIGNED_MATRIX(block, 6, 64, int16_t, CACHE_LINE); | ||
1179 : | DECLARE_ALIGNED_MATRIX(data, 6, 64, int16_t, CACHE_LINE); | ||
1180 : | |||
1181 : | uint32_t stride = dec->edged_width; | ||
1182 : | uint32_t stride2 = stride / 2; | ||
1183 : | uint32_t next_block = stride * 8; | ||
1184 : | uint32_t i; | ||
1185 : | uint32_t iQuant = pMB->quant; | ||
1186 : | uint8_t *pY_Cur, *pU_Cur, *pV_Cur; | ||
1187 : | int uv_dx, uv_dy; | ||
1188 : | |||
1189 : | pY_Cur = dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); | ||
1190 : | pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); | ||
1191 : | pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); | ||
1192 : | |||
1193 : | |||
1194 : | if (!(pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q)) { | ||
1195 : | uv_dx = pMB->mvs[0].x; | ||
1196 : | uv_dy = pMB->mvs[0].y; | ||
1197 : | |||
1198 : | if (dec->quarterpel) | ||
1199 : | { | ||
1200 : | uv_dx /= 2; | ||
1201 : | uv_dy /= 2; | ||
1202 : | } | ||
1203 : | |||
1204 : | uv_dx = (uv_dx >> 1) + roundtab_79[uv_dx & 0x3]; | ||
1205 : | uv_dy = (uv_dy >> 1) + roundtab_79[uv_dy & 0x3]; | ||
1206 : | } else { | ||
1207 : | int sum; | ||
1208 : | |||
1209 : | if(dec->quarterpel) | ||
1210 : | sum = (pMB->mvs[0].x / 2) + (pMB->mvs[1].x / 2) + (pMB->mvs[2].x / 2) + (pMB->mvs[3].x / 2); | ||
1211 : | else | ||
1212 : | sum = pMB->mvs[0].x + pMB->mvs[1].x + pMB->mvs[2].x + pMB->mvs[3].x; | ||
1213 : | |||
1214 : | uv_dx = (sum >> 3) + roundtab_76[sum & 0xf]; | ||
1215 : | |||
1216 : | if(dec->quarterpel) | ||
1217 : | sum = (pMB->mvs[0].y / 2) + (pMB->mvs[1].y / 2) + (pMB->mvs[2].y / 2) + (pMB->mvs[3].y / 2); | ||
1218 : | else | ||
1219 : | sum = pMB->mvs[0].y + pMB->mvs[1].y + pMB->mvs[2].y + pMB->mvs[3].y; | ||
1220 : | |||
1221 : | uv_dy = (sum >> 3) + roundtab_76[sum & 0xf]; | ||
1222 : | } | ||
1223 : | |||
1224 : | start_timer(); | ||
1225 : | if(dec->quarterpel) { | ||
1226 : | interpolate16x16_quarterpel(dec->cur.y, dec->refn[ref].y, dec->qtmp.y, dec->qtmp.y + 64, | ||
1227 : | dec->qtmp.y + 128, 16*x_pos, 16*y_pos, | ||
1228 : | pMB->mvs[0].x, pMB->mvs[0].y, stride, 0); | ||
1229 : | } | ||
1230 : | else { | ||
1231 : | interpolate8x8_switch(dec->cur.y, dec->refn[ref].y, 16*x_pos, 16*y_pos, | ||
1232 : | pMB->mvs[0].x, pMB->mvs[0].y, stride, 0); | ||
1233 : | interpolate8x8_switch(dec->cur.y, dec->refn[ref].y, 16*x_pos + 8, 16*y_pos, | ||
1234 : | pMB->mvs[1].x, pMB->mvs[1].y, stride, 0); | ||
1235 : | interpolate8x8_switch(dec->cur.y, dec->refn[ref].y, 16*x_pos, 16*y_pos + 8, | ||
1236 : | pMB->mvs[2].x, pMB->mvs[2].y, stride, 0); | ||
1237 : | interpolate8x8_switch(dec->cur.y, dec->refn[ref].y, 16*x_pos + 8, 16*y_pos + 8, | ||
1238 : | pMB->mvs[3].x, pMB->mvs[3].y, stride, 0); | ||
1239 : | } | ||
1240 : | |||
1241 : | interpolate8x8_switch(dec->cur.u, dec->refn[ref].u, 8 * x_pos, 8 * y_pos, | ||
1242 : | uv_dx, uv_dy, stride2, 0); | ||
1243 : | interpolate8x8_switch(dec->cur.v, dec->refn[ref].v, 8 * x_pos, 8 * y_pos, | ||
1244 : | uv_dx, uv_dy, stride2, 0); | ||
1245 : | stop_comp_timer(); | ||
1246 : | |||
1247 : | for (i = 0; i < 6; i++) { | ||
1248 : | int direction = dec->alternate_vertical_scan ? 2 : 0; | ||
1249 : | |||
1250 : | if (cbp & (1 << (5 - i))) // coded | ||
1251 : | { | ||
1252 : | memset(&block[i * 64], 0, 64 * sizeof(int16_t)); // clear | ||
1253 : | |||
1254 : | start_timer(); | ||
1255 : | get_inter_block(bs, &block[i * 64], direction); | ||
1256 : | stop_coding_timer(); | ||
1257 : | |||
1258 : | start_timer(); | ||
1259 : | if (dec->quant_type == 0) { | ||
1260 : | dequant_inter(&data[i * 64], &block[i * 64], iQuant); | ||
1261 : | } else { | ||
1262 : | dequant4_inter(&data[i * 64], &block[i * 64], iQuant); | ||
1263 : | } | ||
1264 : | stop_iquant_timer(); | ||
1265 : | |||
1266 : | start_timer(); | ||
1267 : | idct(&data[i * 64]); | ||
1268 : | stop_idct_timer(); | ||
1269 : | } | ||
1270 : | } | ||
1271 : | |||
1272 : | if (dec->interlacing && pMB->field_dct) { | ||
1273 : | next_block = stride; | ||
1274 : | stride *= 2; | ||
1275 : | } | ||
1276 : | |||
1277 : | start_timer(); | ||
1278 : | if (cbp & 32) | ||
1279 : | transfer_16to8add(pY_Cur, &data[0 * 64], stride); | ||
1280 : | if (cbp & 16) | ||
1281 : | transfer_16to8add(pY_Cur + 8, &data[1 * 64], stride); | ||
1282 : | if (cbp & 8) | ||
1283 : | transfer_16to8add(pY_Cur + next_block, &data[2 * 64], stride); | ||
1284 : | if (cbp & 4) | ||
1285 : | transfer_16to8add(pY_Cur + 8 + next_block, &data[3 * 64], stride); | ||
1286 : | if (cbp & 2) | ||
1287 : | transfer_16to8add(pU_Cur, &data[4 * 64], stride2); | ||
1288 : | if (cbp & 1) | ||
1289 : | transfer_16to8add(pV_Cur, &data[5 * 64], stride2); | ||
1290 : | stop_transfer_timer(); | ||
1291 : | } | ||
1292 : | |||
1293 : | // add by MinChen <chenm001@163.com> | ||
1294 : | // decode an B-frame direct & inter macroblock | ||
1295 : | void | ||
1296 : | decoder_bf_interpolate_mbinter(DECODER * dec, | ||
1297 : | IMAGE forward, | ||
1298 : | IMAGE backward, | ||
1299 : | const MACROBLOCK * pMB, | ||
1300 : | const uint32_t x_pos, | ||
1301 : | const uint32_t y_pos, | ||
1302 : | Bitstream * bs) | ||
1303 : | { | ||
1304 : | |||
1305 : | DECLARE_ALIGNED_MATRIX(block, 6, 64, int16_t, CACHE_LINE); | ||
1306 : | DECLARE_ALIGNED_MATRIX(data, 6, 64, int16_t, CACHE_LINE); | ||
1307 : | |||
1308 : | uint32_t stride = dec->edged_width; | ||
1309 : | uint32_t stride2 = stride / 2; | ||
1310 : | uint32_t next_block = stride * 8; | ||
1311 : | uint32_t iQuant = pMB->quant; | ||
1312 : | int uv_dx, uv_dy; | ||
1313 : | int b_uv_dx, b_uv_dy; | ||
1314 : | uint32_t i; | ||
1315 : | uint8_t *pY_Cur, *pU_Cur, *pV_Cur; | ||
1316 : | const uint32_t cbp = pMB->cbp; | ||
1317 : | |||
1318 : | pY_Cur = dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); | ||
1319 : | pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); | ||
1320 : | pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); | ||
1321 : | |||
1322 : | |||
1323 : | if ((pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q)) { | ||
1324 : | uv_dx = pMB->mvs[0].x; | ||
1325 : | uv_dy = pMB->mvs[0].y; | ||
1326 : | |||
1327 : | b_uv_dx = pMB->b_mvs[0].x; | ||
1328 : | b_uv_dy = pMB->b_mvs[0].y; | ||
1329 : | |||
1330 : | if (dec->quarterpel) | ||
1331 : | { | ||
1332 : | uv_dx /= 2; | ||
1333 : | uv_dy /= 2; | ||
1334 : | |||
1335 : | b_uv_dx /= 2; | ||
1336 : | b_uv_dy /= 2; | ||
1337 : | } | ||
1338 : | |||
1339 : | uv_dx = (uv_dx >> 1) + roundtab_79[uv_dx & 0x3]; | ||
1340 : | uv_dy = (uv_dy >> 1) + roundtab_79[uv_dy & 0x3]; | ||
1341 : | |||
1342 : | b_uv_dx = (b_uv_dx >> 1) + roundtab_79[b_uv_dx & 0x3]; | ||
1343 : | b_uv_dy = (b_uv_dy >> 1) + roundtab_79[b_uv_dy & 0x3]; | ||
1344 : | } else { | ||
1345 : | int sum; | ||
1346 : | |||
1347 : | if(dec->quarterpel) | ||
1348 : | sum = (pMB->mvs[0].x / 2) + (pMB->mvs[1].x / 2) + (pMB->mvs[2].x / 2) + (pMB->mvs[3].x / 2); | ||
1349 : | else | ||
1350 : | sum = pMB->mvs[0].x + pMB->mvs[1].x + pMB->mvs[2].x + pMB->mvs[3].x; | ||
1351 : | |||
1352 : | uv_dx = (sum >> 3) + roundtab_76[sum & 0xf]; | ||
1353 : | |||
1354 : | if(dec->quarterpel) | ||
1355 : | sum = (pMB->mvs[0].y / 2) + (pMB->mvs[1].y / 2) + (pMB->mvs[2].y / 2) + (pMB->mvs[3].y / 2); | ||
1356 : | else | ||
1357 : | sum = pMB->mvs[0].y + pMB->mvs[1].y + pMB->mvs[2].y + pMB->mvs[3].y; | ||
1358 : | |||
1359 : | uv_dy = (sum >> 3) + roundtab_76[sum & 0xf]; | ||
1360 : | |||
1361 : | |||
1362 : | if(dec->quarterpel) | ||
1363 : | sum = (pMB->b_mvs[0].x / 2) + (pMB->b_mvs[1].x / 2) + (pMB->b_mvs[2].x / 2) + (pMB->b_mvs[3].x / 2); | ||
1364 : | else | ||
1365 : | sum = pMB->b_mvs[0].x + pMB->b_mvs[1].x + pMB->b_mvs[2].x + pMB->b_mvs[3].x; | ||
1366 : | |||
1367 : | b_uv_dx = (sum >> 3) + roundtab_76[sum & 0xf]; | ||
1368 : | |||
1369 : | if(dec->quarterpel) | ||
1370 : | sum = (pMB->b_mvs[0].y / 2) + (pMB->b_mvs[1].y / 2) + (pMB->b_mvs[2].y / 2) + (pMB->b_mvs[3].y / 2); | ||
1371 : | else | ||
1372 : | sum = pMB->b_mvs[0].y + pMB->b_mvs[1].y + pMB->b_mvs[2].y + pMB->b_mvs[3].y; | ||
1373 : | |||
1374 : | b_uv_dy = (sum >> 3) + roundtab_76[sum & 0xf]; | ||
1375 : | } | ||
1376 : | |||
1377 : | |||
1378 : | start_timer(); | ||
1379 : | if(dec->quarterpel) { | ||
1380 : | if((pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q)) | ||
1381 : | interpolate16x16_quarterpel(dec->cur.y, forward.y, dec->qtmp.y, dec->qtmp.y + 64, | ||
1382 : | dec->qtmp.y + 128, 16*x_pos, 16*y_pos, | ||
1383 : | pMB->mvs[0].x, pMB->mvs[0].y, stride, 0); | ||
1384 : | else { | ||
1385 : | interpolate8x8_quarterpel(dec->cur.y, forward.y, dec->qtmp.y, dec->qtmp.y + 64, | ||
1386 : | dec->qtmp.y + 128, 16*x_pos, 16*y_pos, | ||
1387 : | pMB->mvs[0].x, pMB->mvs[0].y, stride, 0); | ||
1388 : | interpolate8x8_quarterpel(dec->cur.y, forward.y, dec->qtmp.y, dec->qtmp.y + 64, | ||
1389 : | dec->qtmp.y + 128, 16*x_pos + 8, 16*y_pos, | ||
1390 : | pMB->mvs[1].x, pMB->mvs[1].y, stride, 0); | ||
1391 : | interpolate8x8_quarterpel(dec->cur.y, forward.y, dec->qtmp.y, dec->qtmp.y + 64, | ||
1392 : | dec->qtmp.y + 128, 16*x_pos, 16*y_pos + 8, | ||
1393 : | pMB->mvs[2].x, pMB->mvs[2].y, stride, 0); | ||
1394 : | interpolate8x8_quarterpel(dec->cur.y, forward.y, dec->qtmp.y, dec->qtmp.y + 64, | ||
1395 : | dec->qtmp.y + 128, 16*x_pos + 8, 16*y_pos + 8, | ||
1396 : | pMB->mvs[3].x, pMB->mvs[3].y, stride, 0); | ||
1397 : | } | ||
1398 : | } | ||
1399 : | else { | ||
1400 : | interpolate8x8_switch(dec->cur.y, forward.y, 16 * x_pos, 16 * y_pos, | ||
1401 : | pMB->mvs[0].x, pMB->mvs[0].y, stride, 0); | ||
1402 : | interpolate8x8_switch(dec->cur.y, forward.y, 16 * x_pos + 8, 16 * y_pos, | ||
1403 : | pMB->mvs[1].x, pMB->mvs[1].y, stride, 0); | ||
1404 : | interpolate8x8_switch(dec->cur.y, forward.y, 16 * x_pos, 16 * y_pos + 8, | ||
1405 : | pMB->mvs[2].x, pMB->mvs[2].y, stride, 0); | ||
1406 : | interpolate8x8_switch(dec->cur.y, forward.y, 16 * x_pos + 8, | ||
1407 : | 16 * y_pos + 8, pMB->mvs[3].x, pMB->mvs[3].y, stride, | ||
1408 : | 0); | ||
1409 : | } | ||
1410 : | |||
1411 : | interpolate8x8_switch(dec->cur.u, forward.u, 8 * x_pos, 8 * y_pos, uv_dx, | ||
1412 : | uv_dy, stride2, 0); | ||
1413 : | interpolate8x8_switch(dec->cur.v, forward.v, 8 * x_pos, 8 * y_pos, uv_dx, | ||
1414 : | uv_dy, stride2, 0); | ||
1415 : | |||
1416 : | |||
1417 : | if(dec->quarterpel) { | ||
1418 : | if((pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q)) | ||
1419 : | interpolate16x16_quarterpel(dec->tmp.y, backward.y, dec->qtmp.y, dec->qtmp.y + 64, | ||
1420 : | dec->qtmp.y + 128, 16*x_pos, 16*y_pos, | ||
1421 : | pMB->b_mvs[0].x, pMB->b_mvs[0].y, stride, 0); | ||
1422 : | else { | ||
1423 : | interpolate8x8_quarterpel(dec->tmp.y, backward.y, dec->qtmp.y, dec->qtmp.y + 64, | ||
1424 : | dec->qtmp.y + 128, 16*x_pos, 16*y_pos, | ||
1425 : | pMB->b_mvs[0].x, pMB->b_mvs[0].y, stride, 0); | ||
1426 : | interpolate8x8_quarterpel(dec->tmp.y, backward.y, dec->qtmp.y, dec->qtmp.y + 64, | ||
1427 : | dec->qtmp.y + 128, 16*x_pos + 8, 16*y_pos, | ||
1428 : | pMB->b_mvs[1].x, pMB->b_mvs[1].y, stride, 0); | ||
1429 : | interpolate8x8_quarterpel(dec->tmp.y, backward.y, dec->qtmp.y, dec->qtmp.y + 64, | ||
1430 : | dec->qtmp.y + 128, 16*x_pos, 16*y_pos + 8, | ||
1431 : | pMB->b_mvs[2].x, pMB->b_mvs[2].y, stride, 0); | ||
1432 : | interpolate8x8_quarterpel(dec->tmp.y, backward.y, dec->qtmp.y, dec->qtmp.y + 64, | ||
1433 : | dec->qtmp.y + 128, 16*x_pos + 8, 16*y_pos + 8, | ||
1434 : | pMB->b_mvs[3].x, pMB->b_mvs[3].y, stride, 0); | ||
1435 : | } | ||
1436 : | } | ||
1437 : | else { | ||
1438 : | interpolate8x8_switch(dec->tmp.y, backward.y, 16 * x_pos, 16 * y_pos, | ||
1439 : | pMB->b_mvs[0].x, pMB->b_mvs[0].y, stride, 0); | ||
1440 : | interpolate8x8_switch(dec->tmp.y, backward.y, 16 * x_pos + 8, | ||
1441 : | 16 * y_pos, pMB->b_mvs[1].x, pMB->b_mvs[1].y, stride, | ||
1442 : | 0); | ||
1443 : | interpolate8x8_switch(dec->tmp.y, backward.y, 16 * x_pos, | ||
1444 : | 16 * y_pos + 8, pMB->b_mvs[2].x, pMB->b_mvs[2].y, | ||
1445 : | stride, 0); | ||
1446 : | interpolate8x8_switch(dec->tmp.y, backward.y, 16 * x_pos + 8, | ||
1447 : | 16 * y_pos + 8, pMB->b_mvs[3].x, pMB->b_mvs[3].y, | ||
1448 : | stride, 0); | ||
1449 : | } | ||
1450 : | |||
1451 : | interpolate8x8_switch(dec->tmp.u, backward.u, 8 * x_pos, 8 * y_pos, | ||
1452 : | b_uv_dx, b_uv_dy, stride2, 0); | ||
1453 : | interpolate8x8_switch(dec->tmp.v, backward.v, 8 * x_pos, 8 * y_pos, | ||
1454 : | b_uv_dx, b_uv_dy, stride2, 0); | ||
1455 : | |||
1456 : | interpolate8x8_avg2(dec->cur.y + (16 * y_pos * stride) + 16 * x_pos, | ||
1457 : | dec->cur.y + (16 * y_pos * stride) + 16 * x_pos, | ||
1458 : | dec->tmp.y + (16 * y_pos * stride) + 16 * x_pos, | ||
1459 : | stride, 1, 8); | ||
1460 : | |||
1461 : | interpolate8x8_avg2(dec->cur.y + (16 * y_pos * stride) + 16 * x_pos + 8, | ||
1462 : | dec->cur.y + (16 * y_pos * stride) + 16 * x_pos + 8, | ||
1463 : | dec->tmp.y + (16 * y_pos * stride) + 16 * x_pos + 8, | ||
1464 : | stride, 1, 8); | ||
1465 : | |||
1466 : | interpolate8x8_avg2(dec->cur.y + ((16 * y_pos + 8) * stride) + 16 * x_pos, | ||
1467 : | dec->cur.y + ((16 * y_pos + 8) * stride) + 16 * x_pos, | ||
1468 : | dec->tmp.y + ((16 * y_pos + 8) * stride) + 16 * x_pos, | ||
1469 : | stride, 1, 8); | ||
1470 : | |||
1471 : | interpolate8x8_avg2(dec->cur.y + ((16 * y_pos + 8) * stride) + 16 * x_pos + 8, | ||
1472 : | dec->cur.y + ((16 * y_pos + 8) * stride) + 16 * x_pos + 8, | ||
1473 : | dec->tmp.y + ((16 * y_pos + 8) * stride) + 16 * x_pos + 8, | ||
1474 : | stride, 1, 8); | ||
1475 : | |||
1476 : | interpolate8x8_avg2(dec->cur.u + (8 * y_pos * stride2) + 8 * x_pos, | ||
1477 : | dec->cur.u + (8 * y_pos * stride2) + 8 * x_pos, | ||
1478 : | dec->tmp.u + (8 * y_pos * stride2) + 8 * x_pos, | ||
1479 : | stride2, 1, 8); | ||
1480 : | |||
1481 : | interpolate8x8_avg2(dec->cur.v + (8 * y_pos * stride2) + 8 * x_pos, | ||
1482 : | dec->cur.v + (8 * y_pos * stride2) + 8 * x_pos, | ||
1483 : | dec->tmp.v + (8 * y_pos * stride2) + 8 * x_pos, | ||
1484 : | stride2, 1, 8); | ||
1485 : | |||
1486 : | stop_comp_timer(); | ||
1487 : | |||
1488 : | for (i = 0; i < 6; i++) { | ||
1489 : | int direction = dec->alternate_vertical_scan ? 2 : 0; | ||
1490 : | |||
1491 : | if (cbp & (1 << (5 - i))) // coded | ||
1492 : | { | ||
1493 : | memset(&block[i * 64], 0, 64 * sizeof(int16_t)); // clear | ||
1494 : | |||
1495 : | start_timer(); | ||
1496 : | get_inter_block(bs, &block[i * 64], direction); | ||
1497 : | stop_coding_timer(); | ||
1498 : | |||
1499 : | start_timer(); | ||
1500 : | if (dec->quant_type == 0) { | ||
1501 : | dequant_inter(&data[i * 64], &block[i * 64], iQuant); | ||
1502 : | } else { | ||
1503 : | dequant4_inter(&data[i * 64], &block[i * 64], iQuant); | ||
1504 : | } | ||
1505 : | stop_iquant_timer(); | ||
1506 : | |||
1507 : | start_timer(); | ||
1508 : | idct(&data[i * 64]); | ||
1509 : | stop_idct_timer(); | ||
1510 : | } | ||
1511 : | } | ||
1512 : | |||
1513 : | if (dec->interlacing && pMB->field_dct) { | ||
1514 : | next_block = stride; | ||
1515 : | stride *= 2; | ||
1516 : | } | ||
1517 : | |||
1518 : | start_timer(); | ||
1519 : | if (cbp & 32) | ||
1520 : | transfer_16to8add(pY_Cur, &data[0 * 64], stride); | ||
1521 : | if (cbp & 16) | ||
1522 : | transfer_16to8add(pY_Cur + 8, &data[1 * 64], stride); | ||
1523 : | if (cbp & 8) | ||
1524 : | transfer_16to8add(pY_Cur + next_block, &data[2 * 64], stride); | ||
1525 : | if (cbp & 4) | ||
1526 : | transfer_16to8add(pY_Cur + 8 + next_block, &data[3 * 64], stride); | ||
1527 : | if (cbp & 2) | ||
1528 : | transfer_16to8add(pU_Cur, &data[4 * 64], stride2); | ||
1529 : | if (cbp & 1) | ||
1530 : | transfer_16to8add(pV_Cur, &data[5 * 64], stride2); | ||
1531 : | stop_transfer_timer(); | ||
1532 : | } | ||
1533 : | |||
1534 : | |||
1535 : | // add by MinChen <chenm001@163.com> | ||
1536 : | // for decode B-frame dbquant | ||
1537 : | int32_t __inline | ||
1538 : | get_dbquant(Bitstream * bs) | ||
1539 : | { | ||
1540 : | if (!BitstreamGetBit(bs)) // '0' | ||
1541 : | return (0); | ||
1542 : | else if (!BitstreamGetBit(bs)) // '10' | ||
1543 : | return (-2); | ||
1544 : | else | ||
1545 : | return (2); // '11' | ||
1546 : | } | ||
1547 : | |||
1548 : | // add by MinChen <chenm001@163.com> | ||
1549 : | // for decode B-frame mb_type | ||
1550 : | // bit ret_value | ||
1551 : | // 1 0 | ||
1552 : | // 01 1 | ||
1553 : | // 001 2 | ||
1554 : | // 0001 3 | ||
1555 : | int32_t __inline | ||
1556 : | get_mbtype(Bitstream * bs) | ||
1557 : | { | ||
1558 : | int32_t mb_type; | ||
1559 : | |||
1560 : | for (mb_type = 0; mb_type <= 3; mb_type++) { | ||
1561 : | if (BitstreamGetBit(bs)) | ||
1562 : | break; | ||
1563 : | } | ||
1564 : | |||
1565 : | if (mb_type <= 3) | ||
1566 : | return (mb_type); | ||
1567 : | else | ||
1568 : | return (-1); | ||
1569 : | } | ||
1570 : | |||
1571 : | void | ||
1572 : | decoder_bframe(DECODER * dec, | ||
1573 : | Bitstream * bs, | ||
1574 : | int quant, | ||
1575 : | int fcode_forward, | ||
1576 : | int fcode_backward) | ||
1577 : | { | ||
1578 : | uint32_t x, y; | ||
1579 : | VECTOR mv; | ||
1580 : | const VECTOR zeromv = {0,0}; | ||
1581 : | #ifdef BFRAMES_DEC_DEBUG | ||
1582 : | FILE *fp; | ||
1583 : | static char first=0; | ||
1584 : | #define BFRAME_DEBUG if (!first && fp){ \ | ||
1585 : | fprintf(fp,"Y=%3d X=%3d MB=%2d CBP=%02X\n",y,x,mb->mb_type,mb->cbp); \ | ||
1586 : | } | ||
1587 : | #endif | ||
1588 : | |||
1589 : | start_timer(); | ||
1590 : | image_setedges(&dec->refn[0], dec->edged_width, dec->edged_height, | ||
1591 : | dec->width, dec->height); | ||
1592 : | image_setedges(&dec->refn[1], dec->edged_width, dec->edged_height, | ||
1593 : | dec->width, dec->height); | ||
1594 : | stop_edges_timer(); | ||
1595 : | |||
1596 : | #ifdef BFRAMES_DEC_DEBUG | ||
1597 : | if (!first){ | ||
1598 : | fp=fopen("C:\\XVIDDBG.TXT","w"); | ||
1599 : | } | ||
1600 : | #endif | ||
1601 : | |||
1602 : | for (y = 0; y < dec->mb_height; y++) { | ||
1603 : | // Initialize Pred Motion Vector | ||
1604 : | dec->p_fmv = dec->p_bmv = zeromv; | ||
1605 : | for (x = 0; x < dec->mb_width; x++) { | ||
1606 : | MACROBLOCK *mb = &dec->mbs[y * dec->mb_width + x]; | ||
1607 : | MACROBLOCK *last_mb = &dec->last_mbs[y * dec->mb_width + x]; | ||
1608 : | |||
1609 : | mv = | ||
1610 : | mb->b_mvs[0] = mb->b_mvs[1] = mb->b_mvs[2] = mb->b_mvs[3] = | ||
1611 : | mb->mvs[0] = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = zeromv; | ||
1612 : | |||
1613 : | // skip if the co-located P_VOP macroblock is not coded | ||
1614 : | // if not codec in co-located S_VOP macroblock is _not_ automatically skipped | ||
1615 : | |||
1616 : | if (last_mb->mode == MODE_NOT_CODED) { | ||
1617 : | //DEBUG2("Skip MB in B-frame at (X,Y)=!",x,y); | ||
1618 : | mb->cbp = 0; | ||
1619 : | #ifdef BFRAMES_DEC_DEBUG | ||
1620 : | mb->mb_type = MODE_NOT_CODED; | ||
1621 : | BFRAME_DEBUG | ||
1622 : | #endif | ||
1623 : | mb->mb_type = MODE_FORWARD; | ||
1624 : | mb->quant = last_mb->quant; | ||
1625 : | //mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = mb->mvs[0].x; | ||
1626 : | //mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = mb->mvs[0].y; | ||
1627 : | |||
1628 : | decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, mb->quant, 1); | ||
1629 : | continue; | ||
1630 : | } | ||
1631 : | |||
1632 : | if (!BitstreamGetBit(bs)) { // modb=='0' | ||
1633 : | const uint8_t modb2 = BitstreamGetBit(bs); | ||
1634 : | |||
1635 : | mb->mb_type = get_mbtype(bs); | ||
1636 : | |||
1637 : | if (!modb2) { // modb=='00' | ||
1638 : | mb->cbp = BitstreamGetBits(bs, 6); | ||
1639 : | } else { | ||
1640 : | mb->cbp = 0; | ||
1641 : | } | ||
1642 : | if (mb->mb_type && mb->cbp) { | ||
1643 : | quant += get_dbquant(bs); | ||
1644 : | |||
1645 : | if (quant > 31) { | ||
1646 : | quant = 31; | ||
1647 : | } else if (quant < 1) { | ||
1648 : | quant = 1; | ||
1649 : | } | ||
1650 : | } | ||
1651 : | } else { | ||
1652 : | mb->mb_type = MODE_DIRECT_NONE_MV; | ||
1653 : | mb->cbp = 0; | ||
1654 : | } | ||
1655 : | |||
1656 : | mb->quant = quant; | ||
1657 : | mb->mode = MODE_INTER4V; | ||
1658 : | //DEBUG1("Switch bm_type=",mb->mb_type); | ||
1659 : | |||
1660 : | #ifdef BFRAMES_DEC_DEBUG | ||
1661 : | BFRAME_DEBUG | ||
1662 : | #endif | ||
1663 : | |||
1664 : | switch (mb->mb_type) { | ||
1665 : | case MODE_DIRECT: | ||
1666 : | get_b_motion_vector(dec, bs, x, y, &mv, 1, zeromv); | ||
1667 : | |||
1668 : | case MODE_DIRECT_NONE_MV: | ||
1669 : | { | ||
1670 : | const int64_t TRB = dec->time_pp - dec->time_bp, TRD = dec->time_pp; | ||
1671 : | int i; | ||
1672 : | |||
1673 : | for (i = 0; i < 4; i++) { | ||
1674 : | mb->mvs[i].x = (int32_t) ((TRB * last_mb->mvs[i].x) | ||
1675 : | / TRD + mv.x); | ||
1676 : | mb->b_mvs[i].x = (int32_t) ((mv.x == 0) | ||
1677 : | ? ((TRB - TRD) * last_mb->mvs[i].x) | ||
1678 : | / TRD | ||
1679 : | : mb->mvs[i].x - last_mb->mvs[i].x); | ||
1680 : | mb->mvs[i].y = (int32_t) ((TRB * last_mb->mvs[i].y) | ||
1681 : | / TRD + mv.y); | ||
1682 : | mb->b_mvs[i].y = (int32_t) ((mv.y == 0) | ||
1683 : | ? ((TRB - TRD) * last_mb->mvs[i].y) | ||
1684 : | / TRD | ||
1685 : | : mb->mvs[i].y - last_mb->mvs[i].y); | ||
1686 : | } | ||
1687 : | //DEBUG("B-frame Direct!\n"); | ||
1688 : | } | ||
1689 : | decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], | ||
1690 : | mb, x, y, bs); | ||
1691 : | break; | ||
1692 : | |||
1693 : | case MODE_INTERPOLATE: | ||
1694 : | get_b_motion_vector(dec, bs, x, y, &mb->mvs[0], fcode_forward, | ||
1695 : | dec->p_fmv); | ||
1696 : | dec->p_fmv = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = mb->mvs[0]; | ||
1697 : | |||
1698 : | get_b_motion_vector(dec, bs, x, y, &mb->b_mvs[0], | ||
1699 : | fcode_backward, dec->p_bmv); | ||
1700 : | dec->p_bmv = mb->b_mvs[1] = mb->b_mvs[2] = | ||
1701 : | mb->b_mvs[3] = mb->b_mvs[0]; | ||
1702 : | |||
1703 : | decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], | ||
1704 : | mb, x, y, bs); | ||
1705 : | //DEBUG("B-frame Bidir!\n"); | ||
1706 : | break; | ||
1707 : | |||
1708 : | case MODE_BACKWARD: | ||
1709 : | get_b_motion_vector(dec, bs, x, y, &mb->mvs[0], fcode_backward, | ||
1710 : | dec->p_bmv); | ||
1711 : | dec->p_bmv = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = mb->mvs[0]; | ||
1712 : | |||
1713 : | mb->mode = MODE_INTER; | ||
1714 : | decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, quant, 0); | ||
1715 : | //DEBUG("B-frame Backward!\n"); | ||
1716 : | break; | ||
1717 : | |||
1718 : | case MODE_FORWARD: | ||
1719 : | get_b_motion_vector(dec, bs, x, y, &mb->mvs[0], fcode_forward, | ||
1720 : | dec->p_fmv); | ||
1721 : | dec->p_fmv = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = mb->mvs[0]; | ||
1722 : | |||
1723 : | mb->mode = MODE_INTER; | ||
1724 : | decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, quant, 1); | ||
1725 : | //DEBUG("B-frame Forward!\n"); | ||
1726 : | break; | ||
1727 : | |||
1728 : | default: | ||
1729 : | DPRINTF(DPRINTF_ERROR,"Not support B-frame mb_type = %i", mb->mb_type); | ||
1730 : | } | ||
1731 : | |||
1732 : | } // end of FOR | ||
1733 : | } | ||
1734 : | #ifdef BFRAMES_DEC_DEBUG | ||
1735 : | if (!first){ | ||
1736 : | first=1; | ||
1737 : | if (fp) | ||
1738 : | fclose(fp); | ||
1739 : | } | ||
1740 : | #endif | ||
1741 : | } | ||
1742 : | |||
1743 : | // swap two MACROBLOCK array | ||
1744 : | void | ||
1745 : | mb_swap(MACROBLOCK ** mb1, | ||
1746 : | MACROBLOCK ** mb2) | ||
1747 : | { | ||
1748 : | MACROBLOCK *temp = *mb1; | ||
1749 : | |||
1750 : | *mb1 = *mb2; | ||
1751 : | *mb2 = temp; | ||
1752 : | } | ||
1753 : | |||
1754 : | |||
1755 : | /* perform post processing if necessary, and output the image */ | ||
1756 : | void decoder_output(DECODER * dec, IMAGE * img, MACROBLOCK * mbs, | ||
1757 : | const XVID_DEC_FRAME * frame, int pp_disable) | ||
1758 : | { | ||
1759 : | |||
1760 : | if ((frame->general & (XVID_DEC_DEBLOCKY|XVID_DEC_DEBLOCKUV)) && !pp_disable) /* post process */ | ||
1761 : | { | ||
1762 : | /* note: image is stored to tmp */ | ||
1763 : | image_copy(&dec->tmp, img, dec->edged_width, dec->height); | ||
1764 : | image_deblock_rrv(&dec->tmp, dec->edged_width, | ||
1765 : | mbs, dec->mb_width, dec->mb_height, dec->mb_width, | ||
1766 : | 8, frame->general); | ||
1767 : | img = &dec->tmp; | ||
1768 : | } | ||
1769 : | |||
1770 : | image_output(img, dec->width, dec->height, | ||
1771 : | dec->edged_width, frame->image, frame->stride, | ||
1772 : | frame->colorspace, dec->interlacing); | ||
1773 : | } | ||
1774 : | |||
1775 : | |||
1776 : | int | ||
1777 : | decoder_decode(DECODER * dec, | ||
1778 : | XVID_DEC_FRAME * frame, XVID_DEC_STATS * stats) | ||
1779 : | { | ||
1780 : | |||
1781 : | Bitstream bs; | ||
1782 : | uint32_t rounding; | ||
1783 : | uint32_t reduced_resolution; | ||
1784 : | uint32_t quant; | ||
1785 : | uint32_t fcode_forward; | ||
1786 : | uint32_t fcode_backward; | ||
1787 : | uint32_t intra_dc_threshold; | ||
1788 : | WARPPOINTS gmc_warp; | ||
1789 : | uint32_t vop_type; | ||
1790 : | int success = 0; | ||
1791 : | int output = 0; | ||
1792 : | int seen_something = 0; | ||
1793 : | |||
1794 : | start_global_timer(); | ||
1795 : | |||
1796 : | dec->low_delay_default = (frame->general & XVID_DEC_LOWDELAY); | ||
1797 : | dec->out_frm = (frame->colorspace == XVID_CSP_EXTERN) ? frame->image : NULL; | ||
1798 : | |||
1799 : | if ((frame->general & XVID_DEC_DISCONTINUITY)) | ||
1800 : | dec->frames = 0; | ||
1801 : | |||
1802 : | if (frame->length < 0) /* decoder flush */ | ||
1803 : | { | ||
1804 : | /* if not decoding "low_delay/packed", and this isn't low_delay and | ||
1805 : | we have a reference frame, then outout the reference frame */ | ||
1806 : | if (!(dec->low_delay_default && dec->packed_mode) && !dec->low_delay && dec->frames>0) | ||
1807 : | { | ||
1808 : | decoder_output(dec, &dec->refn[0], dec->mbs, frame, dec->last_reduced_resolution); | ||
1809 : | output = 1; | ||
1810 : | } | ||
1811 : | |||
1812 : | frame->length = 0; | ||
1813 : | if (stats) | ||
1814 : | { | ||
1815 : | stats->notify = output ? XVID_DEC_VOP : XVID_DEC_NOTHING; | ||
1816 : | stats->data.vop.time_base = (int)dec->time_base; | ||
1817 : | stats->data.vop.time_increment = 0; //XXX: todo | ||
1818 : | } | ||
1819 : | |||
1820 : | emms(); | ||
1821 : | |||
1822 : | stop_global_timer(); | ||
1823 : | return XVID_ERR_OK; | ||
1824 : | } | ||
1825 : | edgomez | 1.19 | |
1826 : | Isibaar | 1.1 | BitstreamInit(&bs, frame->bitstream, frame->length); |
1827 : | |||
1828 : | edgomez | 1.47 | // XXX: 0x7f is only valid whilst decoding vfw xvid/divx5 avi's |
1829 : | if(dec->low_delay_default && frame->length == 1 && BitstreamShowBits(&bs, 8) == 0x7f) | ||
1830 : | { | ||
1831 : | if (stats) | ||
1832 : | stats->notify = XVID_DEC_VOP; | ||
1833 : | frame->length = 1; | ||
1834 : | image_output(&dec->refn[0], dec->width, dec->height, dec->edged_width, | ||
1835 : | frame->image, frame->stride, frame->colorspace, dec->interlacing); | ||
1836 : | emms(); | ||
1837 : | return XVID_ERR_OK; | ||
1838 : | } | ||
1839 : | |||
1840 : | repeat: | ||
1841 : | |||
1842 : | vop_type = BitstreamReadHeaders(&bs, dec, &rounding, &reduced_resolution, | ||
1843 : | &quant, &fcode_forward, &fcode_backward, &intra_dc_threshold, &gmc_warp); | ||
1844 : | |||
1845 : | DPRINTF(DPRINTF_HEADER, "vop_type=%i, packed=%i, time=%lli, time_pp=%i, time_bp=%i", | ||
1846 : | vop_type, dec->packed_mode, dec->time, dec->time_pp, dec->time_bp); | ||
1847 : | Isibaar | 1.1 | |
1848 : | edgomez | 1.47 | if (vop_type == - 1) |
1849 : | { | ||
1850 : | if (success) goto done; | ||
1851 : | emms(); | ||
1852 : | Isibaar | 1.1 | return XVID_ERR_FAIL; |
1853 : | } | ||
1854 : | |||
1855 : | edgomez | 1.47 | if (vop_type == -2 || vop_type == -3) |
1856 : | { | ||
1857 : | if (vop_type == -3) | ||
1858 : | decoder_resize(dec); | ||
1859 : | |||
1860 : | if (stats) | ||
1861 : | { | ||
1862 : | stats->notify = XVID_DEC_VOL; | ||
1863 : | stats->data.vol.general = 0; | ||
1864 : | if (dec->interlacing) | ||
1865 : | stats->data.vol.general |= XVID_INTERLACING; | ||
1866 : | stats->data.vol.width = dec->width; | ||
1867 : | stats->data.vol.height = dec->height; | ||
1868 : | stats->data.vol.aspect_ratio = dec->aspect_ratio; | ||
1869 : | stats->data.vol.par_width = dec->par_width; | ||
1870 : | stats->data.vol.par_height = dec->par_height; | ||
1871 : | frame->length = BitstreamPos(&bs) / 8; | ||
1872 : | emms(); | ||
1873 : | return XVID_ERR_OK; | ||
1874 : | } | ||
1875 : | goto repeat; | ||
1876 : | } | ||
1877 : | |||
1878 : | dec->p_bmv.x = dec->p_bmv.y = dec->p_fmv.y = dec->p_fmv.y = 0; // init pred vector to 0 | ||
1879 : | |||
1880 : | |||
1881 : | /* packed_mode: special-N_VOP treament */ | ||
1882 : | if (dec->packed_mode && vop_type == N_VOP) | ||
1883 : | { | ||
1884 : | if (dec->low_delay_default && dec->frames > 0) | ||
1885 : | { | ||
1886 : | decoder_output(dec, &dec->refn[0], dec->last_mbs, frame, dec->last_reduced_resolution); | ||
1887 : | output = 1; | ||
1888 : | } | ||
1889 : | /* ignore otherwise */ | ||
1890 : | } | ||
1891 : | else if (vop_type != B_VOP) | ||
1892 : | { | ||
1893 : | switch(vop_type) | ||
1894 : | { | ||
1895 : | case I_VOP : | ||
1896 : | decoder_iframe(dec, &bs, reduced_resolution, quant, intra_dc_threshold); | ||
1897 : | break; | ||
1898 : | case P_VOP : | ||
1899 : | decoder_pframe(dec, &bs, rounding, reduced_resolution, quant, | ||
1900 : | fcode_forward, intra_dc_threshold, NULL); | ||
1901 : | break; | ||
1902 : | case S_VOP : | ||
1903 : | decoder_pframe(dec, &bs, rounding, reduced_resolution, quant, | ||
1904 : | fcode_forward, intra_dc_threshold, &gmc_warp); | ||
1905 : | break; | ||
1906 : | case N_VOP : | ||
1907 : | image_copy(&dec->cur, &dec->refn[0], dec->edged_width, dec->height); | ||
1908 : | break; | ||
1909 : | } | ||
1910 : | |||
1911 : | if (reduced_resolution) | ||
1912 : | { | ||
1913 : | image_deblock_rrv(&dec->cur, dec->edged_width, dec->mbs, | ||
1914 : | (dec->width + 31) / 32, (dec->height + 31) / 32, dec->mb_width, | ||
1915 : | 16, XVID_DEC_DEBLOCKY|XVID_DEC_DEBLOCKUV); | ||
1916 : | } | ||
1917 : | Isibaar | 1.1 | |
1918 : | edgomez | 1.47 | /* note: for packed_mode, output is performed when the special-N_VOP is decoded */ |
1919 : | if (!(dec->low_delay_default && dec->packed_mode)) | ||
1920 : | { | ||
1921 : | if (dec->low_delay) | ||
1922 : | { | ||
1923 : | decoder_output(dec, &dec->cur, dec->mbs, frame, reduced_resolution); | ||
1924 : | output = 1; | ||
1925 : | } | ||
1926 : | else if (dec->frames > 0) /* is the reference frame valid? */ | ||
1927 : | { | ||
1928 : | /* output the reference frame */ | ||
1929 : | decoder_output(dec, &dec->refn[0], dec->last_mbs, frame, dec->last_reduced_resolution); | ||
1930 : | output = 1; | ||
1931 : | } | ||
1932 : | } | ||
1933 : | Isibaar | 1.18 | |
1934 : | chenm001 | 1.14 | image_swap(&dec->refn[0], &dec->refn[1]); |
1935 : | image_swap(&dec->cur, &dec->refn[0]); | ||
1936 : | edgomez | 1.47 | mb_swap(&dec->mbs, &dec->last_mbs); |
1937 : | dec->last_reduced_resolution = reduced_resolution; | ||
1938 : | |||
1939 : | dec->frames++; | ||
1940 : | seen_something = 1; | ||
1941 : | chenm001 | 1.31 | |
1942 : | edgomez | 1.47 | }else{ /* B_VOP */ |
1943 : | |||
1944 : | if (dec->low_delay) | ||
1945 : | { | ||
1946 : | DPRINTF(DPRINTF_ERROR, "warning: bvop found in low_delay==1 stream"); | ||
1947 : | dec->low_delay = 1; | ||
1948 : | } | ||
1949 : | |||
1950 : | if (dec->frames < 2) | ||
1951 : | { | ||
1952 : | /* attemping to decode a bvop without atleast 2 reference frames */ | ||
1953 : | image_printf(&dec->cur, dec->edged_width, dec->height, 16, 16, | ||
1954 : | "broken b-frame, mising ref frames"); | ||
1955 : | }else if (dec->time_pp <= dec->time_bp) { | ||
1956 : | /* this occurs when dx50_bvop_compatibility==0 sequences are | ||
1957 : | decoded in vfw. */ | ||
1958 : | image_printf(&dec->cur, dec->edged_width, dec->height, 16, 16, | ||
1959 : | "broken b-frame, tpp=%i tbp=%i", dec->time_pp, dec->time_bp); | ||
1960 : | }else{ | ||
1961 : | decoder_bframe(dec, &bs, quant, fcode_forward, fcode_backward); | ||
1962 : | } | ||
1963 : | |||
1964 : | decoder_output(dec, &dec->cur, dec->mbs, frame, reduced_resolution); | ||
1965 : | output = 1; | ||
1966 : | dec->frames++; | ||
1967 : | chenm001 | 1.14 | } |
1968 : | |||
1969 : | edgomez | 1.47 | BitstreamByteAlign(&bs); |
1970 : | |||
1971 : | /* low_delay_default mode: repeat in packed_mode */ | ||
1972 : | if (dec->low_delay_default && dec->packed_mode && output == 0 && success == 0) | ||
1973 : | { | ||
1974 : | success = 1; | ||
1975 : | goto repeat; | ||
1976 : | } | ||
1977 : | |||
1978 : | done : | ||
1979 : | |||
1980 : | /* low_delay_default mode: if we've gotten here without outputting anything, | ||
1981 : | then output the recently decoded frame, or print an error message */ | ||
1982 : | if (dec->low_delay_default && output == 0) | ||
1983 : | { | ||
1984 : | if (dec->packed_mode && seen_something) | ||
1985 : | { | ||
1986 : | /* output the recently decoded frame */ | ||
1987 : | decoder_output(dec, &dec->refn[0], dec->last_mbs, frame, dec->last_reduced_resolution); | ||
1988 : | output = 1; | ||
1989 : | } | ||
1990 : | else | ||
1991 : | { | ||
1992 : | image_clear(&dec->cur, dec->width, dec->height, dec->edged_width, 0, 128, 128); | ||
1993 : | image_printf(&dec->cur, dec->edged_width, dec->height, 16, 16, | ||
1994 : | "warning: nothing to output"); | ||
1995 : | image_printf(&dec->cur, dec->edged_width, dec->height, 16, 64, | ||
1996 : | "bframe decoder lag"); | ||
1997 : | |||
1998 : | decoder_output(dec, &dec->cur, NULL, frame, 1 /*disable pp*/); | ||
1999 : | } | ||
2000 : | } | ||
2001 : | |||
2002 : | frame->length = BitstreamPos(&bs) / 8; | ||
2003 : | |||
2004 : | if (stats) | ||
2005 : | { | ||
2006 : | stats->notify = output ? XVID_DEC_VOP : XVID_DEC_NOTHING; | ||
2007 : | stats->data.vop.time_base = (int)dec->time_base; | ||
2008 : | stats->data.vop.time_increment = 0; //XXX: todo | ||
2009 : | } | ||
2010 : | |||
2011 : | Isibaar | 1.1 | emms(); |
2012 : | |||
2013 : | stop_global_timer(); | ||
2014 : | |||
2015 : | return XVID_ERR_OK; | ||
2016 : | } |
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