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1 : | edgomez | 866 | /***************************************************************************** |
2 : | Isibaar | 3 | * |
3 : | edgomez | 146 | * XVID MPEG-4 VIDEO CODEC |
4 : | edgomez | 866 | * - Decoder Module - |
5 : | Isibaar | 3 | * |
6 : | edgomez | 1382 | * Copyright(C) 2002 MinChen <chenm001@163.com> |
7 : | suxen_drol | 1397 | * 2002-2004 Peter Ross <pross@xvid.org> |
8 : | edgomez | 605 | * |
9 : | edgomez | 1382 | * This program is free software ; you can redistribute it and/or modify |
10 : | edgomez | 851 | * it under the terms of the GNU General Public License as published by |
11 : | edgomez | 1382 | * the Free Software Foundation ; either version 2 of the License, or |
12 : | edgomez | 146 | * (at your option) any later version. |
13 : | Isibaar | 3 | * |
14 : | edgomez | 146 | * This program is distributed in the hope that it will be useful, |
15 : | edgomez | 1382 | * but WITHOUT ANY WARRANTY ; without even the implied warranty of |
16 : | edgomez | 146 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
17 : | * GNU General Public License for more details. | ||
18 : | Isibaar | 3 | * |
19 : | edgomez | 146 | * You should have received a copy of the GNU General Public License |
20 : | edgomez | 1382 | * along with this program ; if not, write to the Free Software |
21 : | edgomez | 146 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
22 : | Isibaar | 3 | * |
23 : | edgomez | 1530 | * $Id: decoder.c,v 1.65 2004-08-10 21:58:55 edgomez Exp $ |
24 : | Isibaar | 3 | * |
25 : | edgomez | 866 | ****************************************************************************/ |
26 : | Isibaar | 3 | |
27 : | edgomez | 851 | #include <stdio.h> |
28 : | Isibaar | 3 | #include <stdlib.h> |
29 : | edgomez | 146 | #include <string.h> |
30 : | Isibaar | 3 | |
31 : | chenm001 | 290 | #ifdef BFRAMES_DEC_DEBUG |
32 : | #define BFRAMES_DEC | ||
33 : | #endif | ||
34 : | |||
35 : | Isibaar | 3 | #include "xvid.h" |
36 : | #include "portab.h" | ||
37 : | edgomez | 851 | #include "global.h" |
38 : | Isibaar | 3 | |
39 : | #include "decoder.h" | ||
40 : | #include "bitstream/bitstream.h" | ||
41 : | #include "bitstream/mbcoding.h" | ||
42 : | |||
43 : | edgomez | 1382 | #include "quant/quant.h" |
44 : | #include "quant/quant_matrix.h" | ||
45 : | Isibaar | 3 | #include "dct/idct.h" |
46 : | #include "dct/fdct.h" | ||
47 : | #include "utils/mem_transfer.h" | ||
48 : | #include "image/interpolate8x8.h" | ||
49 : | edgomez | 851 | #include "image/reduced.h" |
50 : | #include "image/font.h" | ||
51 : | edgomez | 1492 | #include "image/qpel.h" |
52 : | Isibaar | 3 | |
53 : | #include "bitstream/mbcoding.h" | ||
54 : | #include "prediction/mbprediction.h" | ||
55 : | #include "utils/timer.h" | ||
56 : | #include "utils/emms.h" | ||
57 : | edgomez | 851 | #include "motion/motion.h" |
58 : | edgomez | 1382 | #include "motion/gmc.h" |
59 : | Isibaar | 3 | |
60 : | #include "image/image.h" | ||
61 : | #include "image/colorspace.h" | ||
62 : | edgomez | 1382 | #include "image/postprocessing.h" |
63 : | Isibaar | 41 | #include "utils/mem_align.h" |
64 : | Isibaar | 3 | |
65 : | edgomez | 1382 | static int |
66 : | edgomez | 851 | decoder_resize(DECODER * dec) |
67 : | Isibaar | 3 | { |
68 : | edgomez | 851 | /* free existing */ |
69 : | image_destroy(&dec->cur, dec->edged_width, dec->edged_height); | ||
70 : | image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); | ||
71 : | image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); | ||
72 : | image_destroy(&dec->tmp, dec->edged_width, dec->edged_height); | ||
73 : | image_destroy(&dec->qtmp, dec->edged_width, dec->edged_height); | ||
74 : | Isibaar | 3 | |
75 : | edgomez | 851 | image_destroy(&dec->gmc, dec->edged_width, dec->edged_height); |
76 : | Isibaar | 3 | |
77 : | edgomez | 1382 | if (dec->last_mbs) |
78 : | edgomez | 851 | xvid_free(dec->last_mbs); |
79 : | if (dec->mbs) | ||
80 : | xvid_free(dec->mbs); | ||
81 : | edgomez | 1382 | if (dec->qscale) |
82 : | xvid_free(dec->qscale); | ||
83 : | edgomez | 851 | |
84 : | /* realloc */ | ||
85 : | Isibaar | 3 | dec->mb_width = (dec->width + 15) / 16; |
86 : | dec->mb_height = (dec->height + 15) / 16; | ||
87 : | |||
88 : | dec->edged_width = 16 * dec->mb_width + 2 * EDGE_SIZE; | ||
89 : | dec->edged_height = 16 * dec->mb_height + 2 * EDGE_SIZE; | ||
90 : | edgomez | 195 | |
91 : | if (image_create(&dec->cur, dec->edged_width, dec->edged_height)) { | ||
92 : | Isibaar | 41 | xvid_free(dec); |
93 : | Isibaar | 3 | return XVID_ERR_MEMORY; |
94 : | } | ||
95 : | |||
96 : | edgomez | 195 | if (image_create(&dec->refn[0], dec->edged_width, dec->edged_height)) { |
97 : | Isibaar | 3 | image_destroy(&dec->cur, dec->edged_width, dec->edged_height); |
98 : | Isibaar | 41 | xvid_free(dec); |
99 : | Isibaar | 3 | return XVID_ERR_MEMORY; |
100 : | } | ||
101 : | edgomez | 851 | |
102 : | edgomez | 866 | /* Support B-frame to reference last 2 frame */ |
103 : | edgomez | 195 | if (image_create(&dec->refn[1], dec->edged_width, dec->edged_height)) { |
104 : | chenm001 | 133 | image_destroy(&dec->cur, dec->edged_width, dec->edged_height); |
105 : | image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); | ||
106 : | xvid_free(dec); | ||
107 : | return XVID_ERR_MEMORY; | ||
108 : | } | ||
109 : | edgomez | 851 | if (image_create(&dec->tmp, dec->edged_width, dec->edged_height)) { |
110 : | chenm001 | 156 | image_destroy(&dec->cur, dec->edged_width, dec->edged_height); |
111 : | image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); | ||
112 : | image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); | ||
113 : | xvid_free(dec); | ||
114 : | return XVID_ERR_MEMORY; | ||
115 : | } | ||
116 : | Isibaar | 3 | |
117 : | edgomez | 851 | if (image_create(&dec->qtmp, dec->edged_width, dec->edged_height)) { |
118 : | image_destroy(&dec->cur, dec->edged_width, dec->edged_height); | ||
119 : | image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); | ||
120 : | image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); | ||
121 : | image_destroy(&dec->tmp, dec->edged_width, dec->edged_height); | ||
122 : | xvid_free(dec); | ||
123 : | return XVID_ERR_MEMORY; | ||
124 : | } | ||
125 : | |||
126 : | if (image_create(&dec->gmc, dec->edged_width, dec->edged_height)) { | ||
127 : | image_destroy(&dec->qtmp, dec->edged_width, dec->edged_height); | ||
128 : | 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 : | image_destroy(&dec->tmp, dec->edged_width, dec->edged_height); | ||
132 : | xvid_free(dec); | ||
133 : | return XVID_ERR_MEMORY; | ||
134 : | } | ||
135 : | |||
136 : | edgomez | 195 | dec->mbs = |
137 : | xvid_malloc(sizeof(MACROBLOCK) * dec->mb_width * dec->mb_height, | ||
138 : | CACHE_LINE); | ||
139 : | if (dec->mbs == NULL) { | ||
140 : | Isibaar | 3 | image_destroy(&dec->cur, dec->edged_width, dec->edged_height); |
141 : | chenm001 | 156 | image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); |
142 : | image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); | ||
143 : | edgomez | 851 | image_destroy(&dec->tmp, dec->edged_width, dec->edged_height); |
144 : | image_destroy(&dec->qtmp, dec->edged_width, dec->edged_height); | ||
145 : | Isibaar | 41 | xvid_free(dec); |
146 : | Isibaar | 3 | return XVID_ERR_MEMORY; |
147 : | } | ||
148 : | Isibaar | 208 | memset(dec->mbs, 0, sizeof(MACROBLOCK) * dec->mb_width * dec->mb_height); |
149 : | |||
150 : | edgomez | 866 | /* For skip MB flag */ |
151 : | edgomez | 195 | 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 | 156 | 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 : | edgomez | 851 | image_destroy(&dec->tmp, dec->edged_width, dec->edged_height); |
160 : | image_destroy(&dec->qtmp, dec->edged_width, dec->edged_height); | ||
161 : | chenm001 | 156 | xvid_free(dec); |
162 : | return XVID_ERR_MEMORY; | ||
163 : | } | ||
164 : | Isibaar | 3 | |
165 : | Isibaar | 208 | memset(dec->last_mbs, 0, sizeof(MACROBLOCK) * dec->mb_width * dec->mb_height); |
166 : | |||
167 : | edgomez | 1382 | /* nothing happens if that fails */ |
168 : | dec->qscale = | ||
169 : | xvid_malloc(sizeof(int) * dec->mb_width * dec->mb_height, CACHE_LINE); | ||
170 : | |||
171 : | if (dec->qscale) | ||
172 : | memset(dec->qscale, 0, sizeof(int) * dec->mb_width * dec->mb_height); | ||
173 : | |||
174 : | return 0; | ||
175 : | edgomez | 851 | } |
176 : | |||
177 : | |||
178 : | int | ||
179 : | edgomez | 1382 | decoder_create(xvid_dec_create_t * create) |
180 : | edgomez | 851 | { |
181 : | DECODER *dec; | ||
182 : | |||
183 : | edgomez | 1382 | if (XVID_VERSION_MAJOR(create->version) != 1) /* v1.x.x */ |
184 : | return XVID_ERR_VERSION; | ||
185 : | |||
186 : | edgomez | 851 | dec = xvid_malloc(sizeof(DECODER), CACHE_LINE); |
187 : | if (dec == NULL) { | ||
188 : | return XVID_ERR_MEMORY; | ||
189 : | } | ||
190 : | edgomez | 1382 | |
191 : | edgomez | 851 | memset(dec, 0, sizeof(DECODER)); |
192 : | |||
193 : | edgomez | 1382 | dec->mpeg_quant_matrices = xvid_malloc(sizeof(uint16_t) * 64 * 8, CACHE_LINE); |
194 : | if (dec->mpeg_quant_matrices == NULL) { | ||
195 : | xvid_free(dec); | ||
196 : | return XVID_ERR_MEMORY; | ||
197 : | } | ||
198 : | edgomez | 851 | |
199 : | edgomez | 1382 | create->handle = dec; |
200 : | edgomez | 851 | |
201 : | edgomez | 1382 | dec->width = create->width; |
202 : | dec->height = create->height; | ||
203 : | |||
204 : | edgomez | 851 | image_null(&dec->cur); |
205 : | image_null(&dec->refn[0]); | ||
206 : | image_null(&dec->refn[1]); | ||
207 : | image_null(&dec->tmp); | ||
208 : | image_null(&dec->qtmp); | ||
209 : | |||
210 : | edgomez | 866 | /* image based GMC */ |
211 : | edgomez | 851 | image_null(&dec->gmc); |
212 : | |||
213 : | dec->mbs = NULL; | ||
214 : | dec->last_mbs = NULL; | ||
215 : | edgomez | 1382 | dec->qscale = NULL; |
216 : | edgomez | 851 | |
217 : | Isibaar | 3 | init_timer(); |
218 : | edgomez | 1382 | init_postproc(&dec->postproc); |
219 : | init_mpeg_matrix(dec->mpeg_quant_matrices); | ||
220 : | Isibaar | 3 | |
221 : | edgomez | 866 | /* For B-frame support (used to save reference frame's time */ |
222 : | edgomez | 851 | dec->frames = 0; |
223 : | chenm001 | 156 | dec->time = dec->time_base = dec->last_time_base = 0; |
224 : | edgomez | 851 | dec->low_delay = 0; |
225 : | dec->packed_mode = 0; | ||
226 : | syskin | 1439 | dec->time_inc_resolution = 1; /* until VOL header says otherwise */ |
227 : | edgomez | 195 | |
228 : | edgomez | 851 | dec->fixed_dimensions = (dec->width > 0 && dec->height > 0); |
229 : | |||
230 : | if (dec->fixed_dimensions) | ||
231 : | return decoder_resize(dec); | ||
232 : | else | ||
233 : | edgomez | 1382 | return 0; |
234 : | Isibaar | 3 | } |
235 : | |||
236 : | |||
237 : | edgomez | 195 | int |
238 : | decoder_destroy(DECODER * dec) | ||
239 : | Isibaar | 3 | { |
240 : | chenm001 | 156 | xvid_free(dec->last_mbs); |
241 : | Isibaar | 41 | xvid_free(dec->mbs); |
242 : | edgomez | 1382 | xvid_free(dec->qscale); |
243 : | edgomez | 851 | |
244 : | edgomez | 866 | /* image based GMC */ |
245 : | image_destroy(&dec->gmc, dec->edged_width, dec->edged_height); | ||
246 : | edgomez | 851 | |
247 : | chenm001 | 133 | image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); |
248 : | chenm001 | 156 | image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); |
249 : | edgomez | 851 | image_destroy(&dec->tmp, dec->edged_width, dec->edged_height); |
250 : | image_destroy(&dec->qtmp, dec->edged_width, dec->edged_height); | ||
251 : | Isibaar | 3 | image_destroy(&dec->cur, dec->edged_width, dec->edged_height); |
252 : | edgomez | 1382 | xvid_free(dec->mpeg_quant_matrices); |
253 : | Isibaar | 41 | xvid_free(dec); |
254 : | Isibaar | 3 | |
255 : | write_timer(); | ||
256 : | edgomez | 1382 | return 0; |
257 : | Isibaar | 3 | } |
258 : | |||
259 : | edgomez | 195 | static const int32_t dquant_table[4] = { |
260 : | Isibaar | 3 | -1, -2, 1, 2 |
261 : | }; | ||
262 : | |||
263 : | edgomez | 866 | /* decode an intra macroblock */ |
264 : | edgomez | 1382 | static void |
265 : | edgomez | 195 | decoder_mbintra(DECODER * dec, |
266 : | MACROBLOCK * pMB, | ||
267 : | const uint32_t x_pos, | ||
268 : | const uint32_t y_pos, | ||
269 : | const uint32_t acpred_flag, | ||
270 : | const uint32_t cbp, | ||
271 : | Bitstream * bs, | ||
272 : | const uint32_t quant, | ||
273 : | chenm001 | 272 | const uint32_t intra_dc_threshold, |
274 : | edgomez | 851 | const unsigned int bound, |
275 : | const int reduced_resolution) | ||
276 : | Isibaar | 3 | { |
277 : | edgomez | 78 | |
278 : | DECLARE_ALIGNED_MATRIX(block, 6, 64, int16_t, CACHE_LINE); | ||
279 : | edgomez | 195 | DECLARE_ALIGNED_MATRIX(data, 6, 64, int16_t, CACHE_LINE); |
280 : | edgomez | 78 | |
281 : | h | 81 | uint32_t stride = dec->edged_width; |
282 : | uint32_t stride2 = stride / 2; | ||
283 : | uint32_t next_block = stride * 8; | ||
284 : | h | 69 | uint32_t i; |
285 : | uint32_t iQuant = pMB->quant; | ||
286 : | uint8_t *pY_Cur, *pU_Cur, *pV_Cur; | ||
287 : | |||
288 : | edgomez | 851 | if (reduced_resolution) { |
289 : | pY_Cur = dec->cur.y + (y_pos << 5) * stride + (x_pos << 5); | ||
290 : | pU_Cur = dec->cur.u + (y_pos << 4) * stride2 + (x_pos << 4); | ||
291 : | pV_Cur = dec->cur.v + (y_pos << 4) * stride2 + (x_pos << 4); | ||
292 : | }else{ | ||
293 : | pY_Cur = dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); | ||
294 : | pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); | ||
295 : | pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); | ||
296 : | } | ||
297 : | h | 69 | |
298 : | edgomez | 866 | memset(block, 0, 6 * 64 * sizeof(int16_t)); /* clear */ |
299 : | h | 69 | |
300 : | edgomez | 195 | for (i = 0; i < 6; i++) { |
301 : | h | 69 | uint32_t iDcScaler = get_dc_scaler(iQuant, i < 4); |
302 : | Isibaar | 3 | int16_t predictors[8]; |
303 : | int start_coeff; | ||
304 : | |||
305 : | start_timer(); | ||
306 : | edgomez | 195 | predict_acdc(dec->mbs, x_pos, y_pos, dec->mb_width, i, &block[i * 64], |
307 : | edgomez | 1472 | iQuant, iDcScaler, predictors, bound); |
308 : | edgomez | 195 | if (!acpred_flag) { |
309 : | h | 69 | pMB->acpred_directions[i] = 0; |
310 : | Isibaar | 3 | } |
311 : | stop_prediction_timer(); | ||
312 : | |||
313 : | edgomez | 195 | if (quant < intra_dc_threshold) { |
314 : | Isibaar | 3 | int dc_size; |
315 : | int dc_dif; | ||
316 : | |||
317 : | edgomez | 195 | dc_size = i < 4 ? get_dc_size_lum(bs) : get_dc_size_chrom(bs); |
318 : | dc_dif = dc_size ? get_dc_dif(bs, dc_size) : 0; | ||
319 : | Isibaar | 3 | |
320 : | edgomez | 195 | if (dc_size > 8) { |
321 : | edgomez | 866 | BitstreamSkip(bs, 1); /* marker */ |
322 : | Isibaar | 3 | } |
323 : | edgomez | 195 | |
324 : | block[i * 64 + 0] = dc_dif; | ||
325 : | Isibaar | 3 | start_coeff = 1; |
326 : | chenm001 | 272 | |
327 : | edgomez | 1382 | DPRINTF(XVID_DEBUG_COEFF,"block[0] %i\n", dc_dif); |
328 : | edgomez | 195 | } else { |
329 : | Isibaar | 3 | start_coeff = 0; |
330 : | } | ||
331 : | |||
332 : | start_timer(); | ||
333 : | edgomez | 866 | if (cbp & (1 << (5 - i))) /* coded */ |
334 : | Isibaar | 3 | { |
335 : | edgomez | 851 | int direction = dec->alternate_vertical_scan ? |
336 : | 2 : pMB->acpred_directions[i]; | ||
337 : | |||
338 : | get_intra_block(bs, &block[i * 64], direction, start_coeff); | ||
339 : | Isibaar | 3 | } |
340 : | stop_coding_timer(); | ||
341 : | |||
342 : | start_timer(); | ||
343 : | edgomez | 1472 | add_acdc(pMB, i, &block[i * 64], iDcScaler, predictors, dec->bs_version); |
344 : | Isibaar | 3 | stop_prediction_timer(); |
345 : | |||
346 : | start_timer(); | ||
347 : | edgomez | 195 | if (dec->quant_type == 0) { |
348 : | edgomez | 1382 | dequant_h263_intra(&data[i * 64], &block[i * 64], iQuant, iDcScaler, dec->mpeg_quant_matrices); |
349 : | edgomez | 195 | } else { |
350 : | edgomez | 1382 | dequant_mpeg_intra(&data[i * 64], &block[i * 64], iQuant, iDcScaler, dec->mpeg_quant_matrices); |
351 : | Isibaar | 3 | } |
352 : | stop_iquant_timer(); | ||
353 : | |||
354 : | start_timer(); | ||
355 : | edgomez | 195 | idct(&data[i * 64]); |
356 : | Isibaar | 3 | stop_idct_timer(); |
357 : | edgomez | 851 | |
358 : | h | 69 | } |
359 : | Isibaar | 3 | |
360 : | edgomez | 195 | if (dec->interlacing && pMB->field_dct) { |
361 : | h | 81 | next_block = stride; |
362 : | stride *= 2; | ||
363 : | Isibaar | 3 | } |
364 : | h | 69 | |
365 : | start_timer(); | ||
366 : | edgomez | 851 | |
367 : | if (reduced_resolution) | ||
368 : | { | ||
369 : | next_block*=2; | ||
370 : | copy_upsampled_8x8_16to8(pY_Cur, &data[0 * 64], stride); | ||
371 : | copy_upsampled_8x8_16to8(pY_Cur + 16, &data[1 * 64], stride); | ||
372 : | copy_upsampled_8x8_16to8(pY_Cur + next_block, &data[2 * 64], stride); | ||
373 : | copy_upsampled_8x8_16to8(pY_Cur + 16 + next_block, &data[3 * 64], stride); | ||
374 : | copy_upsampled_8x8_16to8(pU_Cur, &data[4 * 64], stride2); | ||
375 : | copy_upsampled_8x8_16to8(pV_Cur, &data[5 * 64], stride2); | ||
376 : | }else{ | ||
377 : | transfer_16to8copy(pY_Cur, &data[0 * 64], stride); | ||
378 : | transfer_16to8copy(pY_Cur + 8, &data[1 * 64], stride); | ||
379 : | transfer_16to8copy(pY_Cur + next_block, &data[2 * 64], stride); | ||
380 : | transfer_16to8copy(pY_Cur + 8 + next_block, &data[3 * 64], stride); | ||
381 : | transfer_16to8copy(pU_Cur, &data[4 * 64], stride2); | ||
382 : | transfer_16to8copy(pV_Cur, &data[5 * 64], stride2); | ||
383 : | } | ||
384 : | h | 69 | stop_transfer_timer(); |
385 : | Isibaar | 3 | } |
386 : | |||
387 : | edgomez | 1382 | static void |
388 : | decoder_mb_decode(DECODER * dec, | ||
389 : | const uint32_t cbp, | ||
390 : | Bitstream * bs, | ||
391 : | uint8_t * pY_Cur, | ||
392 : | uint8_t * pU_Cur, | ||
393 : | uint8_t * pV_Cur, | ||
394 : | edgomez | 1524 | int reduced_resolution, |
395 : | edgomez | 1382 | const MACROBLOCK * pMB) |
396 : | { | ||
397 : | edgomez | 1524 | DECLARE_ALIGNED_MATRIX(data, 1, 64, int16_t, CACHE_LINE); |
398 : | Isibaar | 3 | |
399 : | edgomez | 1382 | int stride = dec->edged_width; |
400 : | int next_block = stride * (reduced_resolution ? 16 : 8); | ||
401 : | int i; | ||
402 : | const uint32_t iQuant = pMB->quant; | ||
403 : | const int direction = dec->alternate_vertical_scan ? 2 : 0; | ||
404 : | edgomez | 1486 | typedef void (*get_inter_block_function_t)( |
405 : | Bitstream * bs, | ||
406 : | int16_t * block, | ||
407 : | int direction, | ||
408 : | const int quant, | ||
409 : | const uint16_t *matrix); | ||
410 : | edgomez | 1524 | typedef void (*add_residual_function_t)( |
411 : | uint8_t *predicted_block, | ||
412 : | const int16_t *residual, | ||
413 : | int stride); | ||
414 : | Isibaar | 3 | |
415 : | edgomez | 1486 | const get_inter_block_function_t get_inter_block = (dec->quant_type == 0) |
416 : | edgomez | 1524 | ? (get_inter_block_function_t)get_inter_block_h263 |
417 : | : (get_inter_block_function_t)get_inter_block_mpeg; | ||
418 : | |||
419 : | const add_residual_function_t add_residual = (reduced_resolution) | ||
420 : | ? (add_residual_function_t)add_upsampled_8x8_16to8 | ||
421 : | : (add_residual_function_t)transfer_16to8add; | ||
422 : | |||
423 : | uint8_t *dst[6]; | ||
424 : | int strides[6]; | ||
425 : | edgomez | 1486 | |
426 : | |||
427 : | edgomez | 1524 | if (dec->interlacing && pMB->field_dct) { |
428 : | next_block = stride; | ||
429 : | stride *= 2; | ||
430 : | } | ||
431 : | |||
432 : | reduced_resolution = !!reduced_resolution; | ||
433 : | dst[0] = pY_Cur; | ||
434 : | dst[2] = pY_Cur + next_block; | ||
435 : | dst[1] = dst[0] + (8<<reduced_resolution); | ||
436 : | dst[3] = dst[2] + (8<<reduced_resolution); | ||
437 : | dst[4] = pU_Cur; | ||
438 : | dst[5] = pV_Cur; | ||
439 : | strides[0] = strides[1] = strides[2] = strides[3] = stride; | ||
440 : | strides[4] = stride/2; | ||
441 : | strides[5] = stride/2; | ||
442 : | |||
443 : | edgomez | 1382 | for (i = 0; i < 6; i++) { |
444 : | edgomez | 1524 | /* Process only coded blocks */ |
445 : | if (cbp & (1 << (5 - i))) { | ||
446 : | Isibaar | 3 | |
447 : | edgomez | 1524 | /* Clear the block */ |
448 : | memset(&data[0], 0, 64*sizeof(int16_t)); | ||
449 : | edgomez | 1382 | |
450 : | edgomez | 1486 | /* Decode coeffs and dequantize on the fly */ |
451 : | edgomez | 1382 | start_timer(); |
452 : | edgomez | 1524 | get_inter_block(bs, &data[0], direction, iQuant, get_inter_matrix(dec->mpeg_quant_matrices)); |
453 : | edgomez | 1382 | stop_coding_timer(); |
454 : | |||
455 : | edgomez | 1524 | /* iDCT */ |
456 : | edgomez | 1382 | start_timer(); |
457 : | edgomez | 1524 | idct(&data[0]); |
458 : | edgomez | 1382 | stop_idct_timer(); |
459 : | edgomez | 1524 | |
460 : | /* Add this residual to the predicted block */ | ||
461 : | start_timer(); | ||
462 : | add_residual(dst[i], &data[0], strides[i]); | ||
463 : | stop_transfer_timer(); | ||
464 : | edgomez | 1382 | } |
465 : | } | ||
466 : | } | ||
467 : | |||
468 : | edgomez | 866 | /* decode an inter macroblock */ |
469 : | edgomez | 1382 | static void |
470 : | edgomez | 195 | decoder_mbinter(DECODER * dec, |
471 : | const MACROBLOCK * pMB, | ||
472 : | const uint32_t x_pos, | ||
473 : | const uint32_t y_pos, | ||
474 : | const uint32_t cbp, | ||
475 : | Bitstream * bs, | ||
476 : | edgomez | 851 | const uint32_t rounding, |
477 : | edgomez | 1382 | const int reduced_resolution, |
478 : | const int ref) | ||
479 : | Isibaar | 3 | { |
480 : | h | 81 | uint32_t stride = dec->edged_width; |
481 : | uint32_t stride2 = stride / 2; | ||
482 : | edgomez | 78 | uint32_t i; |
483 : | edgomez | 1382 | |
484 : | h | 69 | uint8_t *pY_Cur, *pU_Cur, *pV_Cur; |
485 : | edgomez | 851 | |
486 : | Isibaar | 3 | int uv_dx, uv_dy; |
487 : | edgomez | 851 | VECTOR mv[4]; /* local copy of mvs */ |
488 : | Isibaar | 3 | |
489 : | edgomez | 851 | if (reduced_resolution) { |
490 : | pY_Cur = dec->cur.y + (y_pos << 5) * stride + (x_pos << 5); | ||
491 : | pU_Cur = dec->cur.u + (y_pos << 4) * stride2 + (x_pos << 4); | ||
492 : | pV_Cur = dec->cur.v + (y_pos << 4) * stride2 + (x_pos << 4); | ||
493 : | for (i = 0; i < 4; i++) { | ||
494 : | mv[i].x = RRV_MV_SCALEUP(pMB->mvs[i].x); | ||
495 : | mv[i].y = RRV_MV_SCALEUP(pMB->mvs[i].y); | ||
496 : | } | ||
497 : | } else { | ||
498 : | pY_Cur = dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); | ||
499 : | pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); | ||
500 : | pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); | ||
501 : | for (i = 0; i < 4; i++) | ||
502 : | mv[i] = pMB->mvs[i]; | ||
503 : | } | ||
504 : | Isibaar | 3 | |
505 : | syskin | 1420 | for (i = 0; i < 4; i++) { |
506 : | /* clip to valid range */ | ||
507 : | int border = (int)(dec->mb_width - x_pos) << (5 + dec->quarterpel); | ||
508 : | if (mv[i].x > border) { | ||
509 : | DPRINTF(XVID_DEBUG_MV, "mv.x > max -- %d > %d, MB %d, %d", mv[i].x, border, x_pos, y_pos); | ||
510 : | mv[i].x = border; | ||
511 : | } else { | ||
512 : | border = (-(int)x_pos-1) << (5 + dec->quarterpel); | ||
513 : | if (mv[i].x < border) { | ||
514 : | DPRINTF(XVID_DEBUG_MV, "mv.x < min -- %d < %d, MB %d, %d", mv[i].x, border, x_pos, y_pos); | ||
515 : | mv[i].x = border; | ||
516 : | } | ||
517 : | } | ||
518 : | |||
519 : | border = (int)(dec->mb_height - y_pos) << (5 + dec->quarterpel); | ||
520 : | if (mv[i].y > border) { | ||
521 : | DPRINTF(XVID_DEBUG_MV, "mv.y > max -- %d > %d, MB %d, %d", mv[i].y, border, x_pos, y_pos); | ||
522 : | mv[i].y = border; | ||
523 : | } else { | ||
524 : | border = (-(int)y_pos-1) << (5 + dec->quarterpel); | ||
525 : | if (mv[i].y < border) { | ||
526 : | DPRINTF(XVID_DEBUG_MV, "mv.y < min -- %d < %d, MB %d, %d", mv[i].y, border, x_pos, y_pos); | ||
527 : | mv[i].y = border; | ||
528 : | } | ||
529 : | } | ||
530 : | } | ||
531 : | |||
532 : | edgomez | 1382 | start_timer(); |
533 : | |||
534 : | if (pMB->mode != MODE_INTER4V) { /* INTER, INTER_Q, NOT_CODED, FORWARD, BACKWARD */ | ||
535 : | |||
536 : | uv_dx = mv[0].x; | ||
537 : | uv_dy = mv[0].y; | ||
538 : | if (dec->quarterpel) { | ||
539 : | uv_dx /= 2; | ||
540 : | uv_dy /= 2; | ||
541 : | } | ||
542 : | edgomez | 851 | uv_dx = (uv_dx >> 1) + roundtab_79[uv_dx & 0x3]; |
543 : | uv_dy = (uv_dy >> 1) + roundtab_79[uv_dy & 0x3]; | ||
544 : | |||
545 : | if (reduced_resolution) | ||
546 : | interpolate32x32_switch(dec->cur.y, dec->refn[0].y, 32*x_pos, 32*y_pos, | ||
547 : | edgomez | 1382 | mv[0].x, mv[0].y, stride, rounding); |
548 : | else if (dec->quarterpel) | ||
549 : | interpolate16x16_quarterpel(dec->cur.y, dec->refn[ref].y, dec->qtmp.y, dec->qtmp.y + 64, | ||
550 : | dec->qtmp.y + 128, 16*x_pos, 16*y_pos, | ||
551 : | edgomez | 851 | mv[0].x, mv[0].y, stride, rounding); |
552 : | edgomez | 1382 | else |
553 : | interpolate16x16_switch(dec->cur.y, dec->refn[ref].y, 16*x_pos, 16*y_pos, | ||
554 : | mv[0].x, mv[0].y, stride, rounding); | ||
555 : | edgomez | 851 | |
556 : | } else { /* MODE_INTER4V */ | ||
557 : | Isibaar | 3 | |
558 : | edgomez | 1382 | if(dec->quarterpel) { |
559 : | uv_dx = (mv[0].x / 2) + (mv[1].x / 2) + (mv[2].x / 2) + (mv[3].x / 2); | ||
560 : | uv_dy = (mv[0].y / 2) + (mv[1].y / 2) + (mv[2].y / 2) + (mv[3].y / 2); | ||
561 : | } else { | ||
562 : | uv_dx = mv[0].x + mv[1].x + mv[2].x + mv[3].x; | ||
563 : | uv_dy = mv[0].y + mv[1].y + mv[2].y + mv[3].y; | ||
564 : | } | ||
565 : | Isibaar | 333 | |
566 : | edgomez | 1382 | uv_dx = (uv_dx >> 3) + roundtab_76[uv_dx & 0xf]; |
567 : | uv_dy = (uv_dy >> 3) + roundtab_76[uv_dy & 0xf]; | ||
568 : | Isibaar | 333 | |
569 : | edgomez | 1382 | if (reduced_resolution) { |
570 : | edgomez | 851 | interpolate16x16_switch(dec->cur.y, dec->refn[0].y, 32*x_pos, 32*y_pos, |
571 : | edgomez | 1382 | mv[0].x, mv[0].y, stride, rounding); |
572 : | edgomez | 851 | interpolate16x16_switch(dec->cur.y, dec->refn[0].y , 32*x_pos + 16, 32*y_pos, |
573 : | edgomez | 1382 | mv[1].x, mv[1].y, stride, rounding); |
574 : | edgomez | 851 | interpolate16x16_switch(dec->cur.y, dec->refn[0].y , 32*x_pos, 32*y_pos + 16, |
575 : | edgomez | 1382 | mv[2].x, mv[2].y, stride, rounding); |
576 : | interpolate16x16_switch(dec->cur.y, dec->refn[0].y , 32*x_pos + 16, 32*y_pos + 16, | ||
577 : | mv[3].x, mv[3].y, stride, rounding); | ||
578 : | edgomez | 851 | interpolate16x16_switch(dec->cur.u, dec->refn[0].u , 16 * x_pos, 16 * y_pos, |
579 : | edgomez | 1382 | uv_dx, uv_dy, stride2, rounding); |
580 : | edgomez | 851 | interpolate16x16_switch(dec->cur.v, dec->refn[0].v , 16 * x_pos, 16 * y_pos, |
581 : | edgomez | 1382 | uv_dx, uv_dy, stride2, rounding); |
582 : | edgomez | 851 | |
583 : | edgomez | 1382 | } else if (dec->quarterpel) { |
584 : | interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y , dec->qtmp.y, dec->qtmp.y + 64, | ||
585 : | dec->qtmp.y + 128, 16*x_pos, 16*y_pos, | ||
586 : | mv[0].x, mv[0].y, stride, rounding); | ||
587 : | interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y , dec->qtmp.y, dec->qtmp.y + 64, | ||
588 : | dec->qtmp.y + 128, 16*x_pos + 8, 16*y_pos, | ||
589 : | mv[1].x, mv[1].y, stride, rounding); | ||
590 : | interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y , dec->qtmp.y, dec->qtmp.y + 64, | ||
591 : | dec->qtmp.y + 128, 16*x_pos, 16*y_pos + 8, | ||
592 : | mv[2].x, mv[2].y, stride, rounding); | ||
593 : | interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y , dec->qtmp.y, dec->qtmp.y + 64, | ||
594 : | dec->qtmp.y + 128, 16*x_pos + 8, 16*y_pos + 8, | ||
595 : | mv[3].x, mv[3].y, stride, rounding); | ||
596 : | } else { | ||
597 : | interpolate8x8_switch(dec->cur.y, dec->refn[0].y , 16*x_pos, 16*y_pos, | ||
598 : | mv[0].x, mv[0].y, stride, rounding); | ||
599 : | interpolate8x8_switch(dec->cur.y, dec->refn[0].y , 16*x_pos + 8, 16*y_pos, | ||
600 : | mv[1].x, mv[1].y, stride, rounding); | ||
601 : | interpolate8x8_switch(dec->cur.y, dec->refn[0].y , 16*x_pos, 16*y_pos + 8, | ||
602 : | mv[2].x, mv[2].y, stride, rounding); | ||
603 : | interpolate8x8_switch(dec->cur.y, dec->refn[0].y , 16*x_pos + 8, 16*y_pos + 8, | ||
604 : | mv[3].x, mv[3].y, stride, rounding); | ||
605 : | edgomez | 851 | } |
606 : | Isibaar | 3 | } |
607 : | |||
608 : | edgomez | 1382 | /* chroma */ |
609 : | if (reduced_resolution) { | ||
610 : | interpolate16x16_switch(dec->cur.u, dec->refn[0].u, 16 * x_pos, 16 * y_pos, | ||
611 : | uv_dx, uv_dy, stride2, rounding); | ||
612 : | interpolate16x16_switch(dec->cur.v, dec->refn[0].v, 16 * x_pos, 16 * y_pos, | ||
613 : | uv_dx, uv_dy, stride2, rounding); | ||
614 : | } else { | ||
615 : | interpolate8x8_switch(dec->cur.u, dec->refn[ref].u, 8 * x_pos, 8 * y_pos, | ||
616 : | uv_dx, uv_dy, stride2, rounding); | ||
617 : | interpolate8x8_switch(dec->cur.v, dec->refn[ref].v, 8 * x_pos, 8 * y_pos, | ||
618 : | uv_dx, uv_dy, stride2, rounding); | ||
619 : | Isibaar | 3 | } |
620 : | h | 69 | |
621 : | edgomez | 1382 | stop_comp_timer(); |
622 : | h | 69 | |
623 : | edgomez | 1382 | if (cbp) |
624 : | decoder_mb_decode(dec, cbp, bs, pY_Cur, pU_Cur, pV_Cur, | ||
625 : | reduced_resolution, pMB); | ||
626 : | edgomez | 851 | } |
627 : | |||
628 : | static void | ||
629 : | decoder_mbgmc(DECODER * dec, | ||
630 : | MACROBLOCK * const pMB, | ||
631 : | const uint32_t x_pos, | ||
632 : | const uint32_t y_pos, | ||
633 : | const uint32_t fcode, | ||
634 : | const uint32_t cbp, | ||
635 : | Bitstream * bs, | ||
636 : | edgomez | 1382 | const uint32_t rounding) |
637 : | edgomez | 851 | { |
638 : | const uint32_t stride = dec->edged_width; | ||
639 : | const uint32_t stride2 = stride / 2; | ||
640 : | edgomez | 1382 | |
641 : | edgomez | 851 | uint8_t *const pY_Cur=dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); |
642 : | uint8_t *const pU_Cur=dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); | ||
643 : | uint8_t *const pV_Cur=dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); | ||
644 : | |||
645 : | edgomez | 1382 | NEW_GMC_DATA * gmc_data = &dec->new_gmc_data; |
646 : | |||
647 : | edgomez | 851 | pMB->mvs[0] = pMB->mvs[1] = pMB->mvs[2] = pMB->mvs[3] = pMB->amv; |
648 : | |||
649 : | start_timer(); | ||
650 : | edgomez | 1382 | |
651 : | edgomez | 851 | /* this is where the calculations are done */ |
652 : | |||
653 : | edgomez | 1382 | gmc_data->predict_16x16(gmc_data, |
654 : | dec->cur.y + y_pos*16*stride + x_pos*16, dec->refn[0].y, | ||
655 : | stride, stride, x_pos, y_pos, rounding); | ||
656 : | edgomez | 851 | |
657 : | edgomez | 1382 | gmc_data->predict_8x8(gmc_data, |
658 : | dec->cur.u + y_pos*8*stride2 + x_pos*8, dec->refn[0].u, | ||
659 : | dec->cur.v + y_pos*8*stride2 + x_pos*8, dec->refn[0].v, | ||
660 : | stride2, stride2, x_pos, y_pos, rounding); | ||
661 : | edgomez | 851 | |
662 : | edgomez | 1382 | gmc_data->get_average_mv(gmc_data, &pMB->amv, x_pos, y_pos, dec->quarterpel); |
663 : | edgomez | 851 | |
664 : | edgomez | 1382 | pMB->amv.x = gmc_sanitize(pMB->amv.x, dec->quarterpel, fcode); |
665 : | pMB->amv.y = gmc_sanitize(pMB->amv.y, dec->quarterpel, fcode); | ||
666 : | edgomez | 851 | |
667 : | edgomez | 1382 | pMB->mvs[0] = pMB->mvs[1] = pMB->mvs[2] = pMB->mvs[3] = pMB->amv; |
668 : | edgomez | 851 | |
669 : | edgomez | 1382 | stop_transfer_timer(); |
670 : | edgomez | 851 | |
671 : | edgomez | 1382 | if (cbp) |
672 : | decoder_mb_decode(dec, cbp, bs, pY_Cur, pU_Cur, pV_Cur, 0, pMB); | ||
673 : | edgomez | 851 | |
674 : | Isibaar | 3 | } |
675 : | |||
676 : | |||
677 : | edgomez | 1382 | static void |
678 : | edgomez | 195 | decoder_iframe(DECODER * dec, |
679 : | edgomez | 1382 | Bitstream * bs, |
680 : | int reduced_resolution, | ||
681 : | int quant, | ||
682 : | int intra_dc_threshold) | ||
683 : | Isibaar | 3 | { |
684 : | chenm001 | 272 | uint32_t bound; |
685 : | Isibaar | 3 | uint32_t x, y; |
686 : | edgomez | 851 | uint32_t mb_width = dec->mb_width; |
687 : | uint32_t mb_height = dec->mb_height; | ||
688 : | edgomez | 1382 | |
689 : | if (reduced_resolution) { | ||
690 : | edgomez | 851 | mb_width = (dec->width + 31) / 32; |
691 : | mb_height = (dec->height + 31) / 32; | ||
692 : | } | ||
693 : | Isibaar | 3 | |
694 : | chenm001 | 272 | bound = 0; |
695 : | |||
696 : | edgomez | 851 | for (y = 0; y < mb_height; y++) { |
697 : | for (x = 0; x < mb_width; x++) { | ||
698 : | chenm001 | 272 | MACROBLOCK *mb; |
699 : | Isibaar | 3 | uint32_t mcbpc; |
700 : | uint32_t cbpc; | ||
701 : | uint32_t acpred_flag; | ||
702 : | uint32_t cbpy; | ||
703 : | uint32_t cbp; | ||
704 : | |||
705 : | chenm001 | 272 | while (BitstreamShowBits(bs, 9) == 1) |
706 : | BitstreamSkip(bs, 9); | ||
707 : | |||
708 : | if (check_resync_marker(bs, 0)) | ||
709 : | { | ||
710 : | edgomez | 1382 | bound = read_video_packet_header(bs, dec, 0, |
711 : | edgomez | 851 | &quant, NULL, NULL, &intra_dc_threshold); |
712 : | x = bound % mb_width; | ||
713 : | y = bound / mb_width; | ||
714 : | chenm001 | 272 | } |
715 : | mb = &dec->mbs[y * dec->mb_width + x]; | ||
716 : | |||
717 : | edgomez | 1382 | DPRINTF(XVID_DEBUG_MB, "macroblock (%i,%i) %08x\n", x, y, BitstreamShowBits(bs, 32)); |
718 : | chenm001 | 272 | |
719 : | Isibaar | 3 | mcbpc = get_mcbpc_intra(bs); |
720 : | mb->mode = mcbpc & 7; | ||
721 : | cbpc = (mcbpc >> 4); | ||
722 : | |||
723 : | acpred_flag = BitstreamGetBit(bs); | ||
724 : | |||
725 : | cbpy = get_cbpy(bs, 1); | ||
726 : | cbp = (cbpy << 2) | cbpc; | ||
727 : | |||
728 : | edgomez | 195 | if (mb->mode == MODE_INTRA_Q) { |
729 : | quant += dquant_table[BitstreamGetBits(bs, 2)]; | ||
730 : | if (quant > 31) { | ||
731 : | Isibaar | 3 | quant = 31; |
732 : | edgomez | 195 | } else if (quant < 1) { |
733 : | Isibaar | 3 | quant = 1; |
734 : | } | ||
735 : | } | ||
736 : | mb->quant = quant; | ||
737 : | chenm001 | 297 | mb->mvs[0].x = mb->mvs[0].y = |
738 : | mb->mvs[1].x = mb->mvs[1].y = | ||
739 : | mb->mvs[2].x = mb->mvs[2].y = | ||
740 : | mb->mvs[3].x = mb->mvs[3].y =0; | ||
741 : | Isibaar | 3 | |
742 : | edgomez | 195 | if (dec->interlacing) { |
743 : | h | 69 | mb->field_dct = BitstreamGetBit(bs); |
744 : | edgomez | 1382 | DPRINTF(XVID_DEBUG_MB,"deci: field_dct: %i\n", mb->field_dct); |
745 : | h | 69 | } |
746 : | |||
747 : | edgomez | 195 | decoder_mbintra(dec, mb, x, y, acpred_flag, cbp, bs, quant, |
748 : | edgomez | 851 | intra_dc_threshold, bound, reduced_resolution); |
749 : | |||
750 : | Isibaar | 3 | } |
751 : | albeu | 315 | if(dec->out_frm) |
752 : | edgomez | 1382 | output_slice(&dec->cur, dec->edged_width,dec->width,dec->out_frm,0,y,mb_width); |
753 : | Isibaar | 3 | } |
754 : | edgomez | 78 | |
755 : | Isibaar | 3 | } |
756 : | |||
757 : | |||
758 : | edgomez | 1382 | static void |
759 : | edgomez | 195 | get_motion_vector(DECODER * dec, |
760 : | edgomez | 1382 | Bitstream * bs, |
761 : | int x, | ||
762 : | int y, | ||
763 : | int k, | ||
764 : | VECTOR * ret_mv, | ||
765 : | int fcode, | ||
766 : | const int bound) | ||
767 : | Isibaar | 3 | { |
768 : | edgomez | 78 | |
769 : | edgomez | 1382 | const int scale_fac = 1 << (fcode - 1); |
770 : | const int high = (32 * scale_fac) - 1; | ||
771 : | const int low = ((-32) * scale_fac); | ||
772 : | const int range = (64 * scale_fac); | ||
773 : | Isibaar | 3 | |
774 : | edgomez | 1382 | const VECTOR pmv = get_pmv2(dec->mbs, dec->mb_width, bound, x, y, k); |
775 : | edgomez | 851 | VECTOR mv; |
776 : | Isibaar | 3 | |
777 : | edgomez | 851 | mv.x = get_mv(bs, fcode); |
778 : | mv.y = get_mv(bs, fcode); | ||
779 : | edgomez | 195 | |
780 : | edgomez | 1382 | DPRINTF(XVID_DEBUG_MV,"mv_diff (%i,%i) pred (%i,%i) result (%i,%i)\n", mv.x, mv.y, pmv.x, pmv.y, mv.x+pmv.x, mv.y+pmv.y); |
781 : | suxen_drol | 252 | |
782 : | edgomez | 851 | mv.x += pmv.x; |
783 : | mv.y += pmv.y; | ||
784 : | chenm001 | 272 | |
785 : | edgomez | 851 | if (mv.x < low) { |
786 : | mv.x += range; | ||
787 : | } else if (mv.x > high) { | ||
788 : | mv.x -= range; | ||
789 : | Isibaar | 3 | } |
790 : | |||
791 : | edgomez | 851 | if (mv.y < low) { |
792 : | mv.y += range; | ||
793 : | } else if (mv.y > high) { | ||
794 : | mv.y -= range; | ||
795 : | Isibaar | 3 | } |
796 : | |||
797 : | edgomez | 1382 | ret_mv->x = mv.x; |
798 : | ret_mv->y = mv.y; | ||
799 : | } | ||
800 : | edgomez | 851 | |
801 : | /* for P_VOP set gmc_warp to NULL */ | ||
802 : | edgomez | 1382 | static void |
803 : | edgomez | 195 | decoder_pframe(DECODER * dec, |
804 : | edgomez | 1382 | Bitstream * bs, |
805 : | int rounding, | ||
806 : | int reduced_resolution, | ||
807 : | int quant, | ||
808 : | int fcode, | ||
809 : | int intra_dc_threshold, | ||
810 : | const WARPPOINTS *const gmc_warp) | ||
811 : | Isibaar | 3 | { |
812 : | uint32_t x, y; | ||
813 : | chenm001 | 272 | uint32_t bound; |
814 : | albeu | 315 | int cp_mb, st_mb; |
815 : | edgomez | 851 | uint32_t mb_width = dec->mb_width; |
816 : | uint32_t mb_height = dec->mb_height; | ||
817 : | edgomez | 1382 | |
818 : | if (reduced_resolution) { | ||
819 : | edgomez | 851 | mb_width = (dec->width + 31) / 32; |
820 : | mb_height = (dec->height + 31) / 32; | ||
821 : | } | ||
822 : | Isibaar | 3 | |
823 : | edgomez | 1451 | if (!dec->is_edged[0]) { |
824 : | start_timer(); | ||
825 : | image_setedges(&dec->refn[0], dec->edged_width, dec->edged_height, | ||
826 : | dec->width, dec->height, dec->bs_version); | ||
827 : | dec->is_edged[0] = 1; | ||
828 : | stop_edges_timer(); | ||
829 : | } | ||
830 : | Isibaar | 3 | |
831 : | edgomez | 1382 | if (gmc_warp) { |
832 : | /* accuracy: 0==1/2, 1=1/4, 2=1/8, 3=1/16 */ | ||
833 : | generate_GMCparameters( dec->sprite_warping_points, | ||
834 : | dec->sprite_warping_accuracy, gmc_warp, | ||
835 : | dec->width, dec->height, &dec->new_gmc_data); | ||
836 : | edgomez | 851 | |
837 : | edgomez | 1382 | /* image warping is done block-based in decoder_mbgmc(), now */ |
838 : | edgomez | 851 | } |
839 : | |||
840 : | chenm001 | 272 | bound = 0; |
841 : | |||
842 : | edgomez | 851 | for (y = 0; y < mb_height; y++) { |
843 : | albeu | 315 | cp_mb = st_mb = 0; |
844 : | edgomez | 851 | for (x = 0; x < mb_width; x++) { |
845 : | chenm001 | 272 | MACROBLOCK *mb; |
846 : | Isibaar | 3 | |
847 : | edgomez | 866 | /* skip stuffing */ |
848 : | chenm001 | 272 | while (BitstreamShowBits(bs, 10) == 1) |
849 : | BitstreamSkip(bs, 10); | ||
850 : | |||
851 : | edgomez | 1382 | if (check_resync_marker(bs, fcode - 1)) { |
852 : | bound = read_video_packet_header(bs, dec, fcode - 1, | ||
853 : | edgomez | 851 | &quant, &fcode, NULL, &intra_dc_threshold); |
854 : | x = bound % mb_width; | ||
855 : | y = bound / mb_width; | ||
856 : | chenm001 | 272 | } |
857 : | mb = &dec->mbs[y * dec->mb_width + x]; | ||
858 : | |||
859 : | edgomez | 1382 | DPRINTF(XVID_DEBUG_MB, "macroblock (%i,%i) %08x\n", x, y, BitstreamShowBits(bs, 32)); |
860 : | chenm001 | 272 | |
861 : | edgomez | 1382 | if (!(BitstreamGetBit(bs))) { /* block _is_ coded */ |
862 : | uint32_t mcbpc, cbpc, cbpy, cbp; | ||
863 : | uint32_t intra, acpred_flag = 0; | ||
864 : | edgomez | 866 | int mcsel = 0; /* mcsel: '0'=local motion, '1'=GMC */ |
865 : | Isibaar | 3 | |
866 : | albeu | 315 | cp_mb++; |
867 : | Isibaar | 3 | mcbpc = get_mcbpc_inter(bs); |
868 : | mb->mode = mcbpc & 7; | ||
869 : | cbpc = (mcbpc >> 4); | ||
870 : | |||
871 : | edgomez | 1382 | DPRINTF(XVID_DEBUG_MB, "mode %i\n", mb->mode); |
872 : | DPRINTF(XVID_DEBUG_MB, "cbpc %i\n", cbpc); | ||
873 : | |||
874 : | Isibaar | 3 | intra = (mb->mode == MODE_INTRA || mb->mode == MODE_INTRA_Q); |
875 : | edgomez | 195 | |
876 : | edgomez | 851 | if (gmc_warp && (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q)) |
877 : | mcsel = BitstreamGetBit(bs); | ||
878 : | edgomez | 1382 | else if (intra) |
879 : | acpred_flag = BitstreamGetBit(bs); | ||
880 : | edgomez | 851 | |
881 : | Isibaar | 3 | cbpy = get_cbpy(bs, intra); |
882 : | edgomez | 1382 | DPRINTF(XVID_DEBUG_MB, "cbpy %i mcsel %i \n", cbpy,mcsel); |
883 : | chenm001 | 272 | |
884 : | Isibaar | 3 | cbp = (cbpy << 2) | cbpc; |
885 : | |||
886 : | edgomez | 195 | if (mb->mode == MODE_INTER_Q || mb->mode == MODE_INTRA_Q) { |
887 : | chenm001 | 272 | int dquant = dquant_table[BitstreamGetBits(bs, 2)]; |
888 : | edgomez | 1382 | DPRINTF(XVID_DEBUG_MB, "dquant %i\n", dquant); |
889 : | chenm001 | 272 | quant += dquant; |
890 : | edgomez | 195 | if (quant > 31) { |
891 : | Isibaar | 3 | quant = 31; |
892 : | chenm001 | 272 | } else if (quant < 1) { |
893 : | Isibaar | 3 | quant = 1; |
894 : | } | ||
895 : | edgomez | 1382 | DPRINTF(XVID_DEBUG_MB, "quant %i\n", quant); |
896 : | Isibaar | 3 | } |
897 : | mb->quant = quant; | ||
898 : | h | 69 | |
899 : | edgomez | 195 | if (dec->interlacing) { |
900 : | h | 388 | if (cbp || intra) { |
901 : | mb->field_dct = BitstreamGetBit(bs); | ||
902 : | edgomez | 1382 | DPRINTF(XVID_DEBUG_MB,"decp: field_dct: %i\n", mb->field_dct); |
903 : | h | 388 | } |
904 : | Isibaar | 3 | |
905 : | edgomez | 1382 | if ((mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) && !mcsel) { |
906 : | h | 69 | mb->field_pred = BitstreamGetBit(bs); |
907 : | edgomez | 1382 | DPRINTF(XVID_DEBUG_MB, "decp: field_pred: %i\n", mb->field_pred); |
908 : | h | 69 | |
909 : | edgomez | 195 | if (mb->field_pred) { |
910 : | h | 69 | mb->field_for_top = BitstreamGetBit(bs); |
911 : | edgomez | 1382 | DPRINTF(XVID_DEBUG_MB,"decp: field_for_top: %i\n", mb->field_for_top); |
912 : | h | 69 | mb->field_for_bot = BitstreamGetBit(bs); |
913 : | edgomez | 1382 | DPRINTF(XVID_DEBUG_MB,"decp: field_for_bot: %i\n", mb->field_for_bot); |
914 : | h | 69 | } |
915 : | } | ||
916 : | Isibaar | 3 | } |
917 : | edgomez | 1382 | |
918 : | edgomez | 851 | if (mcsel) { |
919 : | edgomez | 1382 | decoder_mbgmc(dec, mb, x, y, fcode, cbp, bs, rounding); |
920 : | edgomez | 851 | continue; |
921 : | h | 69 | |
922 : | edgomez | 851 | } else if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) { |
923 : | |||
924 : | edgomez | 195 | if (dec->interlacing && mb->field_pred) { |
925 : | edgomez | 1382 | get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], fcode, bound); |
926 : | get_motion_vector(dec, bs, x, y, 0, &mb->mvs[1], fcode, bound); | ||
927 : | edgomez | 195 | } else { |
928 : | edgomez | 1382 | get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], fcode, bound); |
929 : | edgomez | 851 | mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = mb->mvs[0]; |
930 : | h | 69 | } |
931 : | chl | 339 | } else if (mb->mode == MODE_INTER4V ) { |
932 : | chenm001 | 272 | get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], fcode, bound); |
933 : | get_motion_vector(dec, bs, x, y, 1, &mb->mvs[1], fcode, bound); | ||
934 : | get_motion_vector(dec, bs, x, y, 2, &mb->mvs[2], fcode, bound); | ||
935 : | get_motion_vector(dec, bs, x, y, 3, &mb->mvs[3], fcode, bound); | ||
936 : | edgomez | 1382 | } else { /* MODE_INTRA, MODE_INTRA_Q */ |
937 : | mb->mvs[0].x = mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = 0; | ||
938 : | mb->mvs[0].y = mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = 0; | ||
939 : | edgomez | 195 | decoder_mbintra(dec, mb, x, y, acpred_flag, cbp, bs, quant, |
940 : | edgomez | 851 | intra_dc_threshold, bound, reduced_resolution); |
941 : | Isibaar | 3 | continue; |
942 : | } | ||
943 : | |||
944 : | edgomez | 1382 | decoder_mbinter(dec, mb, x, y, cbp, bs, |
945 : | rounding, reduced_resolution, 0); | ||
946 : | edgomez | 851 | |
947 : | edgomez | 1382 | } else if (gmc_warp) { /* a not coded S(GMC)-VOP macroblock */ |
948 : | edgomez | 851 | mb->mode = MODE_NOT_CODED_GMC; |
949 : | edgomez | 1382 | mb->quant = quant; |
950 : | decoder_mbgmc(dec, mb, x, y, fcode, 0x00, bs, rounding); | ||
951 : | edgomez | 514 | |
952 : | edgomez | 851 | if(dec->out_frm && cp_mb > 0) { |
953 : | edgomez | 1382 | output_slice(&dec->cur, dec->edged_width,dec->width,dec->out_frm,st_mb,y,cp_mb); |
954 : | cp_mb = 0; | ||
955 : | edgomez | 851 | } |
956 : | st_mb = x+1; | ||
957 : | edgomez | 1382 | } else { /* not coded P_VOP macroblock */ |
958 : | chenm001 | 156 | mb->mode = MODE_NOT_CODED; |
959 : | edgomez | 1382 | mb->quant = quant; |
960 : | edgomez | 851 | |
961 : | Isibaar | 3 | mb->mvs[0].x = mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = 0; |
962 : | mb->mvs[0].y = mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = 0; | ||
963 : | edgomez | 195 | |
964 : | edgomez | 1382 | decoder_mbinter(dec, mb, x, y, 0, bs, |
965 : | rounding, reduced_resolution, 0); | ||
966 : | Isibaar | 3 | |
967 : | albeu | 315 | if(dec->out_frm && cp_mb > 0) { |
968 : | edgomez | 1382 | output_slice(&dec->cur, dec->edged_width,dec->width,dec->out_frm,st_mb,y,cp_mb); |
969 : | cp_mb = 0; | ||
970 : | albeu | 315 | } |
971 : | st_mb = x+1; | ||
972 : | Isibaar | 3 | } |
973 : | } | ||
974 : | edgomez | 1382 | |
975 : | albeu | 315 | if(dec->out_frm && cp_mb > 0) |
976 : | edgomez | 1382 | output_slice(&dec->cur, dec->edged_width,dec->width,dec->out_frm,st_mb,y,cp_mb); |
977 : | Isibaar | 3 | } |
978 : | } | ||
979 : | |||
980 : | edgomez | 851 | |
981 : | edgomez | 866 | /* decode B-frame motion vector */ |
982 : | edgomez | 1382 | static void |
983 : | get_b_motion_vector(Bitstream * bs, | ||
984 : | edgomez | 851 | VECTOR * mv, |
985 : | int fcode, | ||
986 : | edgomez | 1382 | const VECTOR pmv, |
987 : | const DECODER * const dec, | ||
988 : | const int x, const int y) | ||
989 : | edgomez | 851 | { |
990 : | edgomez | 1382 | const int scale_fac = 1 << (fcode - 1); |
991 : | const int high = (32 * scale_fac) - 1; | ||
992 : | const int low = ((-32) * scale_fac); | ||
993 : | const int range = (64 * scale_fac); | ||
994 : | edgomez | 851 | |
995 : | edgomez | 1382 | int mv_x = get_mv(bs, fcode); |
996 : | int mv_y = get_mv(bs, fcode); | ||
997 : | edgomez | 851 | |
998 : | edgomez | 1382 | mv_x += pmv.x; |
999 : | mv_y += pmv.y; | ||
1000 : | edgomez | 851 | |
1001 : | edgomez | 1382 | if (mv_x < low) |
1002 : | edgomez | 851 | mv_x += range; |
1003 : | edgomez | 1382 | else if (mv_x > high) |
1004 : | edgomez | 851 | mv_x -= range; |
1005 : | |||
1006 : | edgomez | 1382 | if (mv_y < low) |
1007 : | edgomez | 851 | mv_y += range; |
1008 : | edgomez | 1382 | else if (mv_y > high) |
1009 : | edgomez | 851 | mv_y -= range; |
1010 : | |||
1011 : | edgomez | 1382 | mv->x = mv_x; |
1012 : | mv->y = mv_y; | ||
1013 : | edgomez | 851 | } |
1014 : | |||
1015 : | edgomez | 1382 | /* decode an B-frame direct & interpolate macroblock */ |
1016 : | static void | ||
1017 : | edgomez | 851 | decoder_bf_interpolate_mbinter(DECODER * dec, |
1018 : | edgomez | 1382 | IMAGE forward, |
1019 : | IMAGE backward, | ||
1020 : | const MACROBLOCK * pMB, | ||
1021 : | const uint32_t x_pos, | ||
1022 : | const uint32_t y_pos, | ||
1023 : | Bitstream * bs, | ||
1024 : | const int direct) | ||
1025 : | edgomez | 851 | { |
1026 : | uint32_t stride = dec->edged_width; | ||
1027 : | uint32_t stride2 = stride / 2; | ||
1028 : | int uv_dx, uv_dy; | ||
1029 : | int b_uv_dx, b_uv_dy; | ||
1030 : | uint8_t *pY_Cur, *pU_Cur, *pV_Cur; | ||
1031 : | edgomez | 1382 | const uint32_t cbp = pMB->cbp; |
1032 : | edgomez | 851 | |
1033 : | pY_Cur = dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); | ||
1034 : | pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); | ||
1035 : | pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); | ||
1036 : | |||
1037 : | edgomez | 1382 | if (!direct) { |
1038 : | edgomez | 851 | uv_dx = pMB->mvs[0].x; |
1039 : | uv_dy = pMB->mvs[0].y; | ||
1040 : | b_uv_dx = pMB->b_mvs[0].x; | ||
1041 : | b_uv_dy = pMB->b_mvs[0].y; | ||
1042 : | |||
1043 : | edgomez | 1382 | if (dec->quarterpel) { |
1044 : | edgomez | 851 | uv_dx /= 2; |
1045 : | uv_dy /= 2; | ||
1046 : | b_uv_dx /= 2; | ||
1047 : | b_uv_dy /= 2; | ||
1048 : | } | ||
1049 : | |||
1050 : | uv_dx = (uv_dx >> 1) + roundtab_79[uv_dx & 0x3]; | ||
1051 : | uv_dy = (uv_dy >> 1) + roundtab_79[uv_dy & 0x3]; | ||
1052 : | b_uv_dx = (b_uv_dx >> 1) + roundtab_79[b_uv_dx & 0x3]; | ||
1053 : | b_uv_dy = (b_uv_dy >> 1) + roundtab_79[b_uv_dy & 0x3]; | ||
1054 : | edgomez | 1382 | |
1055 : | edgomez | 851 | } else { |
1056 : | edgomez | 1492 | uv_dx = pMB->mvs[0].x + pMB->mvs[1].x + pMB->mvs[2].x + pMB->mvs[3].x; |
1057 : | uv_dy = pMB->mvs[0].y + pMB->mvs[1].y + pMB->mvs[2].y + pMB->mvs[3].y; | ||
1058 : | b_uv_dx = pMB->b_mvs[0].x + pMB->b_mvs[1].x + pMB->b_mvs[2].x + pMB->b_mvs[3].x; | ||
1059 : | b_uv_dy = pMB->b_mvs[0].y + pMB->b_mvs[1].y + pMB->b_mvs[2].y + pMB->b_mvs[3].y; | ||
1060 : | |||
1061 : | if (dec->quarterpel) { | ||
1062 : | uv_dx /= 2; | ||
1063 : | uv_dy /= 2; | ||
1064 : | b_uv_dx /= 2; | ||
1065 : | b_uv_dy /= 2; | ||
1066 : | edgomez | 1382 | } |
1067 : | edgomez | 851 | |
1068 : | edgomez | 1382 | uv_dx = (uv_dx >> 3) + roundtab_76[uv_dx & 0xf]; |
1069 : | uv_dy = (uv_dy >> 3) + roundtab_76[uv_dy & 0xf]; | ||
1070 : | b_uv_dx = (b_uv_dx >> 3) + roundtab_76[b_uv_dx & 0xf]; | ||
1071 : | b_uv_dy = (b_uv_dy >> 3) + roundtab_76[b_uv_dy & 0xf]; | ||
1072 : | edgomez | 851 | } |
1073 : | |||
1074 : | start_timer(); | ||
1075 : | if(dec->quarterpel) { | ||
1076 : | edgomez | 1382 | if(!direct) { |
1077 : | edgomez | 851 | interpolate16x16_quarterpel(dec->cur.y, forward.y, dec->qtmp.y, dec->qtmp.y + 64, |
1078 : | edgomez | 1382 | dec->qtmp.y + 128, 16*x_pos, 16*y_pos, |
1079 : | pMB->mvs[0].x, pMB->mvs[0].y, stride, 0); | ||
1080 : | } else { | ||
1081 : | edgomez | 851 | interpolate8x8_quarterpel(dec->cur.y, forward.y, dec->qtmp.y, dec->qtmp.y + 64, |
1082 : | edgomez | 1382 | dec->qtmp.y + 128, 16*x_pos, 16*y_pos, |
1083 : | pMB->mvs[0].x, pMB->mvs[0].y, stride, 0); | ||
1084 : | edgomez | 851 | interpolate8x8_quarterpel(dec->cur.y, forward.y, dec->qtmp.y, dec->qtmp.y + 64, |
1085 : | edgomez | 1382 | dec->qtmp.y + 128, 16*x_pos + 8, 16*y_pos, |
1086 : | pMB->mvs[1].x, pMB->mvs[1].y, stride, 0); | ||
1087 : | edgomez | 851 | interpolate8x8_quarterpel(dec->cur.y, forward.y, dec->qtmp.y, dec->qtmp.y + 64, |
1088 : | edgomez | 1382 | dec->qtmp.y + 128, 16*x_pos, 16*y_pos + 8, |
1089 : | pMB->mvs[2].x, pMB->mvs[2].y, stride, 0); | ||
1090 : | edgomez | 851 | interpolate8x8_quarterpel(dec->cur.y, forward.y, dec->qtmp.y, dec->qtmp.y + 64, |
1091 : | edgomez | 1382 | dec->qtmp.y + 128, 16*x_pos + 8, 16*y_pos + 8, |
1092 : | pMB->mvs[3].x, pMB->mvs[3].y, stride, 0); | ||
1093 : | edgomez | 851 | } |
1094 : | edgomez | 1382 | } else { |
1095 : | edgomez | 851 | interpolate8x8_switch(dec->cur.y, forward.y, 16 * x_pos, 16 * y_pos, |
1096 : | edgomez | 1382 | pMB->mvs[0].x, pMB->mvs[0].y, stride, 0); |
1097 : | edgomez | 851 | interpolate8x8_switch(dec->cur.y, forward.y, 16 * x_pos + 8, 16 * y_pos, |
1098 : | edgomez | 1382 | pMB->mvs[1].x, pMB->mvs[1].y, stride, 0); |
1099 : | edgomez | 851 | interpolate8x8_switch(dec->cur.y, forward.y, 16 * x_pos, 16 * y_pos + 8, |
1100 : | edgomez | 1382 | pMB->mvs[2].x, pMB->mvs[2].y, stride, 0); |
1101 : | interpolate8x8_switch(dec->cur.y, forward.y, 16 * x_pos + 8, 16 * y_pos + 8, | ||
1102 : | pMB->mvs[3].x, pMB->mvs[3].y, stride, 0); | ||
1103 : | edgomez | 851 | } |
1104 : | |||
1105 : | interpolate8x8_switch(dec->cur.u, forward.u, 8 * x_pos, 8 * y_pos, uv_dx, | ||
1106 : | edgomez | 1382 | uv_dy, stride2, 0); |
1107 : | edgomez | 851 | interpolate8x8_switch(dec->cur.v, forward.v, 8 * x_pos, 8 * y_pos, uv_dx, |
1108 : | edgomez | 1382 | uv_dy, stride2, 0); |
1109 : | edgomez | 851 | |
1110 : | |||
1111 : | if(dec->quarterpel) { | ||
1112 : | edgomez | 1382 | if(!direct) { |
1113 : | edgomez | 1530 | interpolate16x16_add_quarterpel(dec->cur.y, backward.y, dec->qtmp.y, dec->qtmp.y + 64, |
1114 : | dec->qtmp.y + 128, 16*x_pos, 16*y_pos, | ||
1115 : | pMB->b_mvs[0].x, pMB->b_mvs[0].y, stride, 0); | ||
1116 : | edgomez | 1382 | } else { |
1117 : | edgomez | 1530 | interpolate8x8_add_quarterpel(dec->cur.y, backward.y, dec->qtmp.y, dec->qtmp.y + 64, |
1118 : | dec->qtmp.y + 128, 16*x_pos, 16*y_pos, | ||
1119 : | pMB->b_mvs[0].x, pMB->b_mvs[0].y, stride, 0); | ||
1120 : | interpolate8x8_add_quarterpel(dec->cur.y, backward.y, dec->qtmp.y, dec->qtmp.y + 64, | ||
1121 : | dec->qtmp.y + 128, 16*x_pos + 8, 16*y_pos, | ||
1122 : | pMB->b_mvs[1].x, pMB->b_mvs[1].y, stride, 0); | ||
1123 : | interpolate8x8_add_quarterpel(dec->cur.y, backward.y, dec->qtmp.y, dec->qtmp.y + 64, | ||
1124 : | dec->qtmp.y + 128, 16*x_pos, 16*y_pos + 8, | ||
1125 : | pMB->b_mvs[2].x, pMB->b_mvs[2].y, stride, 0); | ||
1126 : | interpolate8x8_add_quarterpel(dec->cur.y, backward.y, dec->qtmp.y, dec->qtmp.y + 64, | ||
1127 : | dec->qtmp.y + 128, 16*x_pos + 8, 16*y_pos + 8, | ||
1128 : | pMB->b_mvs[3].x, pMB->b_mvs[3].y, stride, 0); | ||
1129 : | edgomez | 851 | } |
1130 : | edgomez | 1382 | } else { |
1131 : | edgomez | 1530 | interpolate8x8_add_switch(dec->cur.y, backward.y, 16 * x_pos, 16 * y_pos, |
1132 : | pMB->b_mvs[0].x, pMB->b_mvs[0].y, stride, 0); | ||
1133 : | interpolate8x8_add_switch(dec->cur.y, backward.y, 16 * x_pos + 8, | ||
1134 : | 16 * y_pos, pMB->b_mvs[1].x, pMB->b_mvs[1].y, stride, 0); | ||
1135 : | interpolate8x8_add_switch(dec->cur.y, backward.y, 16 * x_pos, | ||
1136 : | 16 * y_pos + 8, pMB->b_mvs[2].x, pMB->b_mvs[2].y, stride, 0); | ||
1137 : | interpolate8x8_add_switch(dec->cur.y, backward.y, 16 * x_pos + 8, | ||
1138 : | 16 * y_pos + 8, pMB->b_mvs[3].x, pMB->b_mvs[3].y, stride, 0); | ||
1139 : | edgomez | 851 | } |
1140 : | |||
1141 : | edgomez | 1530 | interpolate8x8_add_switch(dec->cur.u, backward.u, 8 * x_pos, 8 * y_pos, |
1142 : | b_uv_dx, b_uv_dy, stride2, 0); | ||
1143 : | interpolate8x8_add_switch(dec->cur.v, backward.v, 8 * x_pos, 8 * y_pos, | ||
1144 : | b_uv_dx, b_uv_dy, stride2, 0); | ||
1145 : | edgomez | 851 | |
1146 : | stop_comp_timer(); | ||
1147 : | |||
1148 : | edgomez | 1382 | if (cbp) |
1149 : | decoder_mb_decode(dec, cbp, bs, pY_Cur, pU_Cur, pV_Cur, 0, pMB); | ||
1150 : | edgomez | 851 | } |
1151 : | |||
1152 : | edgomez | 866 | /* for decode B-frame dbquant */ |
1153 : | edgomez | 1382 | static __inline int32_t |
1154 : | edgomez | 851 | get_dbquant(Bitstream * bs) |
1155 : | { | ||
1156 : | edgomez | 1382 | if (!BitstreamGetBit(bs)) /* '0' */ |
1157 : | edgomez | 851 | return (0); |
1158 : | edgomez | 1382 | else if (!BitstreamGetBit(bs)) /* '10' */ |
1159 : | edgomez | 851 | return (-2); |
1160 : | edgomez | 1382 | else /* '11' */ |
1161 : | edgomez | 866 | return (2); |
1162 : | edgomez | 851 | } |
1163 : | |||
1164 : | edgomez | 866 | /* |
1165 : | edgomez | 1382 | * decode B-frame mb_type |
1166 : | * bit ret_value | ||
1167 : | * 1 0 | ||
1168 : | * 01 1 | ||
1169 : | * 001 2 | ||
1170 : | * 0001 3 | ||
1171 : | edgomez | 866 | */ |
1172 : | edgomez | 1382 | static int32_t __inline |
1173 : | edgomez | 851 | get_mbtype(Bitstream * bs) |
1174 : | { | ||
1175 : | int32_t mb_type; | ||
1176 : | |||
1177 : | edgomez | 1382 | for (mb_type = 0; mb_type <= 3; mb_type++) |
1178 : | edgomez | 851 | if (BitstreamGetBit(bs)) |
1179 : | edgomez | 1382 | return (mb_type); |
1180 : | edgomez | 851 | |
1181 : | edgomez | 1382 | return -1; |
1182 : | edgomez | 851 | } |
1183 : | |||
1184 : | edgomez | 1382 | static void |
1185 : | edgomez | 851 | decoder_bframe(DECODER * dec, |
1186 : | edgomez | 1382 | Bitstream * bs, |
1187 : | int quant, | ||
1188 : | int fcode_forward, | ||
1189 : | int fcode_backward) | ||
1190 : | edgomez | 851 | { |
1191 : | uint32_t x, y; | ||
1192 : | VECTOR mv; | ||
1193 : | const VECTOR zeromv = {0,0}; | ||
1194 : | edgomez | 1382 | int i; |
1195 : | edgomez | 851 | |
1196 : | edgomez | 1451 | if (!dec->is_edged[0]) { |
1197 : | start_timer(); | ||
1198 : | image_setedges(&dec->refn[0], dec->edged_width, dec->edged_height, | ||
1199 : | dec->width, dec->height, dec->bs_version); | ||
1200 : | dec->is_edged[0] = 1; | ||
1201 : | stop_edges_timer(); | ||
1202 : | } | ||
1203 : | edgomez | 851 | |
1204 : | edgomez | 1451 | if (!dec->is_edged[1]) { |
1205 : | start_timer(); | ||
1206 : | image_setedges(&dec->refn[1], dec->edged_width, dec->edged_height, | ||
1207 : | dec->width, dec->height, dec->bs_version); | ||
1208 : | dec->is_edged[1] = 1; | ||
1209 : | stop_edges_timer(); | ||
1210 : | } | ||
1211 : | |||
1212 : | edgomez | 851 | for (y = 0; y < dec->mb_height; y++) { |
1213 : | edgomez | 866 | /* Initialize Pred Motion Vector */ |
1214 : | edgomez | 851 | dec->p_fmv = dec->p_bmv = zeromv; |
1215 : | for (x = 0; x < dec->mb_width; x++) { | ||
1216 : | MACROBLOCK *mb = &dec->mbs[y * dec->mb_width + x]; | ||
1217 : | MACROBLOCK *last_mb = &dec->last_mbs[y * dec->mb_width + x]; | ||
1218 : | edgomez | 1382 | const int fcode_max = (fcode_forward>fcode_backward) ? fcode_forward : fcode_backward; |
1219 : | uint32_t intra_dc_threshold; /* fake variable */ | ||
1220 : | edgomez | 851 | |
1221 : | edgomez | 1382 | if (check_resync_marker(bs, fcode_max - 1)) { |
1222 : | int bound = read_video_packet_header(bs, dec, fcode_max - 1, &quant, | ||
1223 : | &fcode_forward, &fcode_backward, &intra_dc_threshold); | ||
1224 : | x = bound % dec->mb_width; | ||
1225 : | y = bound / dec->mb_width; | ||
1226 : | /* reset predicted macroblocks */ | ||
1227 : | dec->p_fmv = dec->p_bmv = zeromv; | ||
1228 : | } | ||
1229 : | |||
1230 : | edgomez | 851 | mv = |
1231 : | mb->b_mvs[0] = mb->b_mvs[1] = mb->b_mvs[2] = mb->b_mvs[3] = | ||
1232 : | mb->mvs[0] = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = zeromv; | ||
1233 : | edgomez | 1382 | mb->quant = quant; |
1234 : | edgomez | 851 | |
1235 : | edgomez | 866 | /* |
1236 : | edgomez | 1382 | * skip if the co-located P_VOP macroblock is not coded |
1237 : | edgomez | 866 | * if not codec in co-located S_VOP macroblock is _not_ |
1238 : | * automatically skipped | ||
1239 : | */ | ||
1240 : | edgomez | 851 | |
1241 : | if (last_mb->mode == MODE_NOT_CODED) { | ||
1242 : | mb->cbp = 0; | ||
1243 : | edgomez | 1382 | mb->mode = MODE_FORWARD; |
1244 : | decoder_mbinter(dec, mb, x, y, mb->cbp, bs, 0, 0, 1); | ||
1245 : | edgomez | 851 | continue; |
1246 : | } | ||
1247 : | |||
1248 : | edgomez | 866 | if (!BitstreamGetBit(bs)) { /* modb=='0' */ |
1249 : | edgomez | 851 | const uint8_t modb2 = BitstreamGetBit(bs); |
1250 : | |||
1251 : | edgomez | 1382 | mb->mode = get_mbtype(bs); |
1252 : | edgomez | 851 | |
1253 : | edgomez | 1382 | if (!modb2) /* modb=='00' */ |
1254 : | edgomez | 851 | mb->cbp = BitstreamGetBits(bs, 6); |
1255 : | edgomez | 1382 | else |
1256 : | edgomez | 851 | mb->cbp = 0; |
1257 : | |||
1258 : | edgomez | 1382 | if (mb->mode && mb->cbp) { |
1259 : | quant += get_dbquant(bs); | ||
1260 : | if (quant > 31) | ||
1261 : | edgomez | 851 | quant = 31; |
1262 : | edgomez | 1382 | else if (quant < 1) |
1263 : | edgomez | 851 | quant = 1; |
1264 : | edgomez | 1382 | } |
1265 : | mb->quant = quant; | ||
1266 : | |||
1267 : | if (dec->interlacing) { | ||
1268 : | if (mb->cbp) { | ||
1269 : | mb->field_dct = BitstreamGetBit(bs); | ||
1270 : | DPRINTF(XVID_DEBUG_MB,"decp: field_dct: %i\n", mb->field_dct); | ||
1271 : | edgomez | 851 | } |
1272 : | edgomez | 1382 | |
1273 : | if (mb->mode) { | ||
1274 : | mb->field_pred = BitstreamGetBit(bs); | ||
1275 : | DPRINTF(XVID_DEBUG_MB, "decp: field_pred: %i\n", mb->field_pred); | ||
1276 : | |||
1277 : | if (mb->field_pred) { | ||
1278 : | mb->field_for_top = BitstreamGetBit(bs); | ||
1279 : | DPRINTF(XVID_DEBUG_MB,"decp: field_for_top: %i\n", mb->field_for_top); | ||
1280 : | mb->field_for_bot = BitstreamGetBit(bs); | ||
1281 : | DPRINTF(XVID_DEBUG_MB,"decp: field_for_bot: %i\n", mb->field_for_bot); | ||
1282 : | } | ||
1283 : | } | ||
1284 : | edgomez | 851 | } |
1285 : | edgomez | 1382 | |
1286 : | edgomez | 851 | } else { |
1287 : | edgomez | 1382 | mb->mode = MODE_DIRECT_NONE_MV; |
1288 : | edgomez | 851 | mb->cbp = 0; |
1289 : | } | ||
1290 : | |||
1291 : | edgomez | 1382 | switch (mb->mode) { |
1292 : | edgomez | 851 | case MODE_DIRECT: |
1293 : | edgomez | 1382 | get_b_motion_vector(bs, &mv, 1, zeromv, dec, x, y); |
1294 : | edgomez | 851 | |
1295 : | case MODE_DIRECT_NONE_MV: | ||
1296 : | edgomez | 1382 | for (i = 0; i < 4; i++) { |
1297 : | edgomez | 1466 | mb->mvs[i].x = last_mb->mvs[i].x*dec->time_bp/dec->time_pp + mv.x; |
1298 : | mb->mvs[i].y = last_mb->mvs[i].y*dec->time_bp/dec->time_pp + mv.y; | ||
1299 : | |||
1300 : | mb->b_mvs[i].x = (mv.x) | ||
1301 : | ? mb->mvs[i].x - last_mb->mvs[i].x | ||
1302 : | : last_mb->mvs[i].x*(dec->time_bp - dec->time_pp)/dec->time_pp; | ||
1303 : | mb->b_mvs[i].y = (mv.y) | ||
1304 : | ? mb->mvs[i].y - last_mb->mvs[i].y | ||
1305 : | : last_mb->mvs[i].y*(dec->time_bp - dec->time_pp)/dec->time_pp; | ||
1306 : | edgomez | 851 | } |
1307 : | edgomez | 1382 | |
1308 : | edgomez | 851 | decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], |
1309 : | edgomez | 1382 | mb, x, y, bs, 1); |
1310 : | edgomez | 851 | break; |
1311 : | |||
1312 : | case MODE_INTERPOLATE: | ||
1313 : | edgomez | 1382 | get_b_motion_vector(bs, &mb->mvs[0], fcode_forward, dec->p_fmv, dec, x, y); |
1314 : | edgomez | 851 | dec->p_fmv = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = mb->mvs[0]; |
1315 : | |||
1316 : | edgomez | 1382 | get_b_motion_vector(bs, &mb->b_mvs[0], fcode_backward, dec->p_bmv, dec, x, y); |
1317 : | dec->p_bmv = mb->b_mvs[1] = mb->b_mvs[2] = mb->b_mvs[3] = mb->b_mvs[0]; | ||
1318 : | edgomez | 851 | |
1319 : | decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], | ||
1320 : | edgomez | 1382 | mb, x, y, bs, 0); |
1321 : | edgomez | 851 | break; |
1322 : | |||
1323 : | case MODE_BACKWARD: | ||
1324 : | edgomez | 1382 | get_b_motion_vector(bs, &mb->mvs[0], fcode_backward, dec->p_bmv, dec, x, y); |
1325 : | edgomez | 851 | dec->p_bmv = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = mb->mvs[0]; |
1326 : | |||
1327 : | edgomez | 1382 | decoder_mbinter(dec, mb, x, y, mb->cbp, bs, 0, 0, 0); |
1328 : | edgomez | 851 | break; |
1329 : | |||
1330 : | case MODE_FORWARD: | ||
1331 : | edgomez | 1382 | get_b_motion_vector(bs, &mb->mvs[0], fcode_forward, dec->p_fmv, dec, x, y); |
1332 : | edgomez | 851 | dec->p_fmv = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = mb->mvs[0]; |
1333 : | |||
1334 : | edgomez | 1382 | decoder_mbinter(dec, mb, x, y, mb->cbp, bs, 0, 0, 1); |
1335 : | edgomez | 851 | break; |
1336 : | |||
1337 : | default: | ||
1338 : | edgomez | 1382 | DPRINTF(XVID_DEBUG_ERROR,"Not supported B-frame mb_type = %i\n", mb->mode); |
1339 : | edgomez | 851 | } |
1340 : | edgomez | 866 | } /* End of for */ |
1341 : | edgomez | 851 | } |
1342 : | } | ||
1343 : | |||
1344 : | /* perform post processing if necessary, and output the image */ | ||
1345 : | edgomez | 1382 | void decoder_output(DECODER * dec, IMAGE * img, MACROBLOCK * mbs, |
1346 : | xvid_dec_frame_t * frame, xvid_dec_stats_t * stats, | ||
1347 : | int coding_type, int quant) | ||
1348 : | edgomez | 851 | { |
1349 : | suxen_drol | 1431 | const int brightness = XVID_VERSION_MINOR(frame->version) >= 1 ? frame->brightness : 0; |
1350 : | |||
1351 : | edgomez | 1382 | if (dec->cartoon_mode) |
1352 : | frame->general &= ~XVID_FILMEFFECT; | ||
1353 : | edgomez | 851 | |
1354 : | suxen_drol | 1431 | if ((frame->general & (XVID_DEBLOCKY|XVID_DEBLOCKUV|XVID_FILMEFFECT) || brightness!=0) |
1355 : | suxen_drol | 1397 | && mbs != NULL) /* post process */ |
1356 : | edgomez | 851 | { |
1357 : | /* note: image is stored to tmp */ | ||
1358 : | image_copy(&dec->tmp, img, dec->edged_width, dec->height); | ||
1359 : | edgomez | 1382 | image_postproc(&dec->postproc, &dec->tmp, dec->edged_width, |
1360 : | mbs, dec->mb_width, dec->mb_height, dec->mb_width, | ||
1361 : | suxen_drol | 1431 | frame->general, brightness, dec->frames, (coding_type == B_VOP)); |
1362 : | edgomez | 851 | img = &dec->tmp; |
1363 : | } | ||
1364 : | |||
1365 : | image_output(img, dec->width, dec->height, | ||
1366 : | edgomez | 1382 | dec->edged_width, (uint8_t**)frame->output.plane, frame->output.stride, |
1367 : | frame->output.csp, dec->interlacing); | ||
1368 : | |||
1369 : | if (stats) { | ||
1370 : | stats->type = coding2type(coding_type); | ||
1371 : | stats->data.vop.time_base = (int)dec->time_base; | ||
1372 : | stats->data.vop.time_increment = 0; /* XXX: todo */ | ||
1373 : | stats->data.vop.qscale_stride = dec->mb_width; | ||
1374 : | stats->data.vop.qscale = dec->qscale; | ||
1375 : | if (stats->data.vop.qscale != NULL && mbs != NULL) { | ||
1376 : | int i; | ||
1377 : | for (i = 0; i < dec->mb_width*dec->mb_height; i++) | ||
1378 : | stats->data.vop.qscale[i] = mbs[i].quant; | ||
1379 : | } else | ||
1380 : | stats->data.vop.qscale = NULL; | ||
1381 : | } | ||
1382 : | edgomez | 851 | } |
1383 : | |||
1384 : | |||
1385 : | edgomez | 195 | int |
1386 : | decoder_decode(DECODER * dec, | ||
1387 : | edgomez | 1382 | xvid_dec_frame_t * frame, xvid_dec_stats_t * stats) |
1388 : | Isibaar | 3 | { |
1389 : | edgomez | 78 | |
1390 : | Isibaar | 3 | Bitstream bs; |
1391 : | uint32_t rounding; | ||
1392 : | edgomez | 851 | uint32_t reduced_resolution; |
1393 : | edgomez | 1382 | uint32_t quant = 2; |
1394 : | chenm001 | 156 | uint32_t fcode_forward; |
1395 : | uint32_t fcode_backward; | ||
1396 : | Isibaar | 3 | uint32_t intra_dc_threshold; |
1397 : | edgomez | 851 | WARPPOINTS gmc_warp; |
1398 : | edgomez | 1382 | int coding_type; |
1399 : | int success, output, seen_something; | ||
1400 : | Isibaar | 3 | |
1401 : | edgomez | 1382 | if (XVID_VERSION_MAJOR(frame->version) != 1 || (stats && XVID_VERSION_MAJOR(stats->version) != 1)) /* v1.x.x */ |
1402 : | return XVID_ERR_VERSION; | ||
1403 : | |||
1404 : | Isibaar | 3 | start_global_timer(); |
1405 : | edgomez | 195 | |
1406 : | edgomez | 1382 | dec->low_delay_default = (frame->general & XVID_LOWDELAY); |
1407 : | if ((frame->general & XVID_DISCONTINUITY)) | ||
1408 : | edgomez | 851 | dec->frames = 0; |
1409 : | edgomez | 1382 | dec->out_frm = (frame->output.csp == XVID_CSP_SLICE) ? &frame->output : NULL; |
1410 : | edgomez | 851 | |
1411 : | edgomez | 1382 | if (frame->length < 0) { /* decoder flush */ |
1412 : | int ret; | ||
1413 : | /* if not decoding "low_delay/packed", and this isn't low_delay and | ||
1414 : | we have a reference frame, then outout the reference frame */ | ||
1415 : | if (!(dec->low_delay_default && dec->packed_mode) && !dec->low_delay && dec->frames>0) { | ||
1416 : | decoder_output(dec, &dec->refn[0], dec->last_mbs, frame, stats, dec->last_coding_type, quant); | ||
1417 : | dec->frames = 0; | ||
1418 : | ret = 0; | ||
1419 : | } else { | ||
1420 : | if (stats) stats->type = XVID_TYPE_NOTHING; | ||
1421 : | ret = XVID_ERR_END; | ||
1422 : | edgomez | 851 | } |
1423 : | |||
1424 : | emms(); | ||
1425 : | stop_global_timer(); | ||
1426 : | edgomez | 1382 | return ret; |
1427 : | edgomez | 851 | } |
1428 : | |||
1429 : | Isibaar | 3 | BitstreamInit(&bs, frame->bitstream, frame->length); |
1430 : | |||
1431 : | edgomez | 866 | /* XXX: 0x7f is only valid whilst decoding vfw xvid/divx5 avi's */ |
1432 : | edgomez | 851 | if(dec->low_delay_default && frame->length == 1 && BitstreamShowBits(&bs, 8) == 0x7f) |
1433 : | { | ||
1434 : | image_output(&dec->refn[0], dec->width, dec->height, dec->edged_width, | ||
1435 : | edgomez | 1382 | (uint8_t**)frame->output.plane, frame->output.stride, frame->output.csp, dec->interlacing); |
1436 : | if (stats) stats->type = XVID_TYPE_NOTHING; | ||
1437 : | edgomez | 851 | emms(); |
1438 : | edgomez | 1382 | return 1; /* one byte consumed */ |
1439 : | edgomez | 851 | } |
1440 : | Isibaar | 179 | |
1441 : | edgomez | 1382 | success = 0; |
1442 : | output = 0; | ||
1443 : | seen_something = 0; | ||
1444 : | |||
1445 : | edgomez | 851 | repeat: |
1446 : | edgomez | 195 | |
1447 : | edgomez | 1382 | coding_type = BitstreamReadHeaders(&bs, dec, &rounding, &reduced_resolution, |
1448 : | edgomez | 851 | &quant, &fcode_forward, &fcode_backward, &intra_dc_threshold, &gmc_warp); |
1449 : | Isibaar | 3 | |
1450 : | edgomez | 1382 | DPRINTF(XVID_DEBUG_HEADER, "coding_type=%i, packed=%i, time=%lli, time_pp=%i, time_bp=%i\n", |
1451 : | coding_type, dec->packed_mode, dec->time, dec->time_pp, dec->time_bp); | ||
1452 : | Isibaar | 3 | |
1453 : | edgomez | 1382 | if (coding_type == -1) { /* nothing */ |
1454 : | edgomez | 851 | if (success) goto done; |
1455 : | edgomez | 1382 | if (stats) stats->type = XVID_TYPE_NOTHING; |
1456 : | edgomez | 851 | emms(); |
1457 : | edgomez | 1382 | return BitstreamPos(&bs)/8; |
1458 : | Isibaar | 3 | } |
1459 : | |||
1460 : | edgomez | 1382 | if (coding_type == -2 || coding_type == -3) { /* vol and/or resize */ |
1461 : | |||
1462 : | if (coding_type == -3) | ||
1463 : | edgomez | 851 | decoder_resize(dec); |
1464 : | edgomez | 1382 | |
1465 : | if (stats) { | ||
1466 : | stats->type = XVID_TYPE_VOL; | ||
1467 : | edgomez | 851 | stats->data.vol.general = 0; |
1468 : | edgomez | 1382 | /*XXX: if (dec->interlacing) |
1469 : | stats->data.vol.general |= ++INTERLACING; */ | ||
1470 : | edgomez | 851 | stats->data.vol.width = dec->width; |
1471 : | stats->data.vol.height = dec->height; | ||
1472 : | edgomez | 1382 | stats->data.vol.par = dec->aspect_ratio; |
1473 : | edgomez | 851 | stats->data.vol.par_width = dec->par_width; |
1474 : | stats->data.vol.par_height = dec->par_height; | ||
1475 : | emms(); | ||
1476 : | edgomez | 1382 | return BitstreamPos(&bs)/8; /* number of bytes consumed */ |
1477 : | edgomez | 851 | } |
1478 : | goto repeat; | ||
1479 : | edgomez | 1382 | } |
1480 : | Isibaar | 3 | |
1481 : | syskin | 1439 | if(dec->frames == 0 && coding_type != I_VOP) { |
1482 : | /* 1st frame is not an i-vop */ | ||
1483 : | goto repeat; | ||
1484 : | } | ||
1485 : | |||
1486 : | edgomez | 866 | dec->p_bmv.x = dec->p_bmv.y = dec->p_fmv.y = dec->p_fmv.y = 0; /* init pred vector to 0 */ |
1487 : | chenm001 | 290 | |
1488 : | edgomez | 851 | /* packed_mode: special-N_VOP treament */ |
1489 : | edgomez | 1382 | if (dec->packed_mode && coding_type == N_VOP) { |
1490 : | if (dec->low_delay_default && dec->frames > 0) { | ||
1491 : | decoder_output(dec, &dec->refn[0], dec->last_mbs, frame, stats, dec->last_coding_type, quant); | ||
1492 : | edgomez | 851 | output = 1; |
1493 : | } | ||
1494 : | /* ignore otherwise */ | ||
1495 : | edgomez | 1382 | } else if (coding_type != B_VOP) { |
1496 : | switch(coding_type) { | ||
1497 : | edgomez | 851 | case I_VOP : |
1498 : | decoder_iframe(dec, &bs, reduced_resolution, quant, intra_dc_threshold); | ||
1499 : | break; | ||
1500 : | case P_VOP : | ||
1501 : | edgomez | 1382 | decoder_pframe(dec, &bs, rounding, reduced_resolution, quant, |
1502 : | edgomez | 851 | fcode_forward, intra_dc_threshold, NULL); |
1503 : | break; | ||
1504 : | case S_VOP : | ||
1505 : | edgomez | 1382 | decoder_pframe(dec, &bs, rounding, reduced_resolution, quant, |
1506 : | edgomez | 851 | fcode_forward, intra_dc_threshold, &gmc_warp); |
1507 : | break; | ||
1508 : | case N_VOP : | ||
1509 : | edgomez | 1382 | /* XXX: not_coded vops are not used for forward prediction */ |
1510 : | /* we should not swap(last_mbs,mbs) */ | ||
1511 : | edgomez | 851 | image_copy(&dec->cur, &dec->refn[0], dec->edged_width, dec->height); |
1512 : | edgomez | 1382 | SWAP(MACROBLOCK *, dec->mbs, dec->last_mbs); /* it will be swapped back */ |
1513 : | edgomez | 851 | break; |
1514 : | } | ||
1515 : | |||
1516 : | edgomez | 1382 | if (reduced_resolution) { |
1517 : | edgomez | 851 | image_deblock_rrv(&dec->cur, dec->edged_width, dec->mbs, |
1518 : | (dec->width + 31) / 32, (dec->height + 31) / 32, dec->mb_width, | ||
1519 : | edgomez | 1382 | 16, 0); |
1520 : | edgomez | 851 | } |
1521 : | |||
1522 : | /* note: for packed_mode, output is performed when the special-N_VOP is decoded */ | ||
1523 : | edgomez | 1382 | if (!(dec->low_delay_default && dec->packed_mode)) { |
1524 : | if (dec->low_delay) { | ||
1525 : | decoder_output(dec, &dec->cur, dec->mbs, frame, stats, coding_type, quant); | ||
1526 : | edgomez | 851 | output = 1; |
1527 : | edgomez | 1382 | } else if (dec->frames > 0) { /* is the reference frame valid? */ |
1528 : | edgomez | 851 | /* output the reference frame */ |
1529 : | edgomez | 1382 | decoder_output(dec, &dec->refn[0], dec->last_mbs, frame, stats, dec->last_coding_type, quant); |
1530 : | edgomez | 851 | output = 1; |
1531 : | } | ||
1532 : | } | ||
1533 : | |||
1534 : | chenm001 | 156 | image_swap(&dec->refn[0], &dec->refn[1]); |
1535 : | edgomez | 1451 | dec->is_edged[1] = dec->is_edged[0]; |
1536 : | chenm001 | 156 | image_swap(&dec->cur, &dec->refn[0]); |
1537 : | edgomez | 1451 | dec->is_edged[0] = 0; |
1538 : | edgomez | 1382 | SWAP(MACROBLOCK *, dec->mbs, dec->last_mbs); |
1539 : | edgomez | 851 | dec->last_reduced_resolution = reduced_resolution; |
1540 : | edgomez | 1382 | dec->last_coding_type = coding_type; |
1541 : | chenm001 | 306 | |
1542 : | edgomez | 851 | dec->frames++; |
1543 : | seen_something = 1; | ||
1544 : | |||
1545 : | edgomez | 1382 | } else { /* B_VOP */ |
1546 : | edgomez | 851 | |
1547 : | edgomez | 1382 | if (dec->low_delay) { |
1548 : | DPRINTF(XVID_DEBUG_ERROR, "warning: bvop found in low_delay==1 stream\n"); | ||
1549 : | syskin | 1474 | dec->low_delay = 0; |
1550 : | edgomez | 851 | } |
1551 : | |||
1552 : | edgomez | 1382 | if (dec->frames < 2) { |
1553 : | edgomez | 851 | /* attemping to decode a bvop without atleast 2 reference frames */ |
1554 : | image_printf(&dec->cur, dec->edged_width, dec->height, 16, 16, | ||
1555 : | "broken b-frame, mising ref frames"); | ||
1556 : | edgomez | 1382 | if (stats) stats->type = XVID_TYPE_NOTHING; |
1557 : | } else if (dec->time_pp <= dec->time_bp) { | ||
1558 : | /* this occurs when dx50_bvop_compatibility==0 sequences are | ||
1559 : | edgomez | 851 | decoded in vfw. */ |
1560 : | image_printf(&dec->cur, dec->edged_width, dec->height, 16, 16, | ||
1561 : | "broken b-frame, tpp=%i tbp=%i", dec->time_pp, dec->time_bp); | ||
1562 : | edgomez | 1382 | if (stats) stats->type = XVID_TYPE_NOTHING; |
1563 : | } else { | ||
1564 : | edgomez | 851 | decoder_bframe(dec, &bs, quant, fcode_forward, fcode_backward); |
1565 : | edgomez | 1382 | decoder_output(dec, &dec->cur, dec->mbs, frame, stats, coding_type, quant); |
1566 : | edgomez | 851 | } |
1567 : | |||
1568 : | output = 1; | ||
1569 : | dec->frames++; | ||
1570 : | chenm001 | 156 | } |
1571 : | |||
1572 : | edgomez | 1382 | #if 0 /* Avoids to read to much data because of 32bit reads in our BS functions */ |
1573 : | BitstreamByteAlign(&bs); | ||
1574 : | #endif | ||
1575 : | edgomez | 851 | |
1576 : | /* low_delay_default mode: repeat in packed_mode */ | ||
1577 : | edgomez | 1382 | if (dec->low_delay_default && dec->packed_mode && output == 0 && success == 0) { |
1578 : | edgomez | 851 | success = 1; |
1579 : | goto repeat; | ||
1580 : | } | ||
1581 : | |||
1582 : | done : | ||
1583 : | |||
1584 : | /* low_delay_default mode: if we've gotten here without outputting anything, | ||
1585 : | then output the recently decoded frame, or print an error message */ | ||
1586 : | edgomez | 1382 | if (dec->low_delay_default && output == 0) { |
1587 : | if (dec->packed_mode && seen_something) { | ||
1588 : | edgomez | 851 | /* output the recently decoded frame */ |
1589 : | edgomez | 1382 | decoder_output(dec, &dec->refn[0], dec->last_mbs, frame, stats, dec->last_coding_type, quant); |
1590 : | } else { | ||
1591 : | edgomez | 851 | image_clear(&dec->cur, dec->width, dec->height, dec->edged_width, 0, 128, 128); |
1592 : | image_printf(&dec->cur, dec->edged_width, dec->height, 16, 16, | ||
1593 : | "warning: nothing to output"); | ||
1594 : | image_printf(&dec->cur, dec->edged_width, dec->height, 16, 64, | ||
1595 : | "bframe decoder lag"); | ||
1596 : | |||
1597 : | edgomez | 1382 | decoder_output(dec, &dec->cur, NULL, frame, stats, P_VOP, quant); |
1598 : | if (stats) stats->type = XVID_TYPE_NOTHING; | ||
1599 : | edgomez | 851 | } |
1600 : | } | ||
1601 : | |||
1602 : | Isibaar | 3 | emms(); |
1603 : | stop_global_timer(); | ||
1604 : | |||
1605 : | edgomez | 1382 | return (BitstreamPos(&bs) + 7) / 8; /* number of bytes consumed */ |
1606 : | Isibaar | 3 | } |
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