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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 | 1519 | * $Id: decoder.c,v 1.63 2004-07-24 11:46:08 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 | 1492 | #ifdef ARCH_IS_IA32 |
66 : | #define interpolate16x16_quarterpel new_interpolate16x16_quarterpel | ||
67 : | #define interpolate8x8_quarterpel new_interpolate8x8_quarterpel | ||
68 : | #endif | ||
69 : | |||
70 : | edgomez | 1382 | static int |
71 : | edgomez | 851 | decoder_resize(DECODER * dec) |
72 : | Isibaar | 3 | { |
73 : | edgomez | 851 | /* free existing */ |
74 : | image_destroy(&dec->cur, dec->edged_width, dec->edged_height); | ||
75 : | image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); | ||
76 : | image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); | ||
77 : | image_destroy(&dec->tmp, dec->edged_width, dec->edged_height); | ||
78 : | image_destroy(&dec->qtmp, dec->edged_width, dec->edged_height); | ||
79 : | Isibaar | 3 | |
80 : | edgomez | 851 | image_destroy(&dec->gmc, dec->edged_width, dec->edged_height); |
81 : | Isibaar | 3 | |
82 : | edgomez | 1382 | if (dec->last_mbs) |
83 : | edgomez | 851 | xvid_free(dec->last_mbs); |
84 : | if (dec->mbs) | ||
85 : | xvid_free(dec->mbs); | ||
86 : | edgomez | 1382 | if (dec->qscale) |
87 : | xvid_free(dec->qscale); | ||
88 : | edgomez | 851 | |
89 : | /* realloc */ | ||
90 : | Isibaar | 3 | dec->mb_width = (dec->width + 15) / 16; |
91 : | dec->mb_height = (dec->height + 15) / 16; | ||
92 : | |||
93 : | dec->edged_width = 16 * dec->mb_width + 2 * EDGE_SIZE; | ||
94 : | dec->edged_height = 16 * dec->mb_height + 2 * EDGE_SIZE; | ||
95 : | edgomez | 195 | |
96 : | if (image_create(&dec->cur, dec->edged_width, dec->edged_height)) { | ||
97 : | Isibaar | 41 | xvid_free(dec); |
98 : | Isibaar | 3 | return XVID_ERR_MEMORY; |
99 : | } | ||
100 : | |||
101 : | edgomez | 195 | if (image_create(&dec->refn[0], dec->edged_width, dec->edged_height)) { |
102 : | Isibaar | 3 | image_destroy(&dec->cur, dec->edged_width, dec->edged_height); |
103 : | Isibaar | 41 | xvid_free(dec); |
104 : | Isibaar | 3 | return XVID_ERR_MEMORY; |
105 : | } | ||
106 : | edgomez | 851 | |
107 : | edgomez | 866 | /* Support B-frame to reference last 2 frame */ |
108 : | edgomez | 195 | if (image_create(&dec->refn[1], dec->edged_width, dec->edged_height)) { |
109 : | chenm001 | 133 | image_destroy(&dec->cur, dec->edged_width, dec->edged_height); |
110 : | image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); | ||
111 : | xvid_free(dec); | ||
112 : | return XVID_ERR_MEMORY; | ||
113 : | } | ||
114 : | edgomez | 851 | if (image_create(&dec->tmp, dec->edged_width, dec->edged_height)) { |
115 : | chenm001 | 156 | image_destroy(&dec->cur, dec->edged_width, dec->edged_height); |
116 : | image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); | ||
117 : | image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); | ||
118 : | xvid_free(dec); | ||
119 : | return XVID_ERR_MEMORY; | ||
120 : | } | ||
121 : | Isibaar | 3 | |
122 : | edgomez | 851 | if (image_create(&dec->qtmp, dec->edged_width, dec->edged_height)) { |
123 : | image_destroy(&dec->cur, dec->edged_width, dec->edged_height); | ||
124 : | image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); | ||
125 : | image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); | ||
126 : | image_destroy(&dec->tmp, dec->edged_width, dec->edged_height); | ||
127 : | xvid_free(dec); | ||
128 : | return XVID_ERR_MEMORY; | ||
129 : | } | ||
130 : | |||
131 : | if (image_create(&dec->gmc, dec->edged_width, dec->edged_height)) { | ||
132 : | image_destroy(&dec->qtmp, dec->edged_width, dec->edged_height); | ||
133 : | image_destroy(&dec->cur, dec->edged_width, dec->edged_height); | ||
134 : | image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); | ||
135 : | image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); | ||
136 : | image_destroy(&dec->tmp, dec->edged_width, dec->edged_height); | ||
137 : | xvid_free(dec); | ||
138 : | return XVID_ERR_MEMORY; | ||
139 : | } | ||
140 : | |||
141 : | edgomez | 195 | dec->mbs = |
142 : | xvid_malloc(sizeof(MACROBLOCK) * dec->mb_width * dec->mb_height, | ||
143 : | CACHE_LINE); | ||
144 : | if (dec->mbs == NULL) { | ||
145 : | Isibaar | 3 | image_destroy(&dec->cur, dec->edged_width, dec->edged_height); |
146 : | chenm001 | 156 | image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); |
147 : | image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); | ||
148 : | edgomez | 851 | image_destroy(&dec->tmp, dec->edged_width, dec->edged_height); |
149 : | image_destroy(&dec->qtmp, dec->edged_width, dec->edged_height); | ||
150 : | Isibaar | 41 | xvid_free(dec); |
151 : | Isibaar | 3 | return XVID_ERR_MEMORY; |
152 : | } | ||
153 : | Isibaar | 208 | memset(dec->mbs, 0, sizeof(MACROBLOCK) * dec->mb_width * dec->mb_height); |
154 : | |||
155 : | edgomez | 866 | /* For skip MB flag */ |
156 : | edgomez | 195 | dec->last_mbs = |
157 : | xvid_malloc(sizeof(MACROBLOCK) * dec->mb_width * dec->mb_height, | ||
158 : | CACHE_LINE); | ||
159 : | if (dec->last_mbs == NULL) { | ||
160 : | chenm001 | 156 | xvid_free(dec->mbs); |
161 : | 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 | 851 | image_destroy(&dec->tmp, dec->edged_width, dec->edged_height); |
165 : | image_destroy(&dec->qtmp, dec->edged_width, dec->edged_height); | ||
166 : | chenm001 | 156 | xvid_free(dec); |
167 : | return XVID_ERR_MEMORY; | ||
168 : | } | ||
169 : | Isibaar | 3 | |
170 : | Isibaar | 208 | memset(dec->last_mbs, 0, sizeof(MACROBLOCK) * dec->mb_width * dec->mb_height); |
171 : | |||
172 : | edgomez | 1382 | /* nothing happens if that fails */ |
173 : | dec->qscale = | ||
174 : | xvid_malloc(sizeof(int) * dec->mb_width * dec->mb_height, CACHE_LINE); | ||
175 : | |||
176 : | if (dec->qscale) | ||
177 : | memset(dec->qscale, 0, sizeof(int) * dec->mb_width * dec->mb_height); | ||
178 : | |||
179 : | return 0; | ||
180 : | edgomez | 851 | } |
181 : | |||
182 : | |||
183 : | int | ||
184 : | edgomez | 1382 | decoder_create(xvid_dec_create_t * create) |
185 : | edgomez | 851 | { |
186 : | DECODER *dec; | ||
187 : | |||
188 : | edgomez | 1382 | if (XVID_VERSION_MAJOR(create->version) != 1) /* v1.x.x */ |
189 : | return XVID_ERR_VERSION; | ||
190 : | |||
191 : | edgomez | 851 | dec = xvid_malloc(sizeof(DECODER), CACHE_LINE); |
192 : | if (dec == NULL) { | ||
193 : | return XVID_ERR_MEMORY; | ||
194 : | } | ||
195 : | edgomez | 1382 | |
196 : | edgomez | 851 | memset(dec, 0, sizeof(DECODER)); |
197 : | |||
198 : | edgomez | 1382 | dec->mpeg_quant_matrices = xvid_malloc(sizeof(uint16_t) * 64 * 8, CACHE_LINE); |
199 : | if (dec->mpeg_quant_matrices == NULL) { | ||
200 : | xvid_free(dec); | ||
201 : | return XVID_ERR_MEMORY; | ||
202 : | } | ||
203 : | edgomez | 851 | |
204 : | edgomez | 1382 | create->handle = dec; |
205 : | edgomez | 851 | |
206 : | edgomez | 1382 | dec->width = create->width; |
207 : | dec->height = create->height; | ||
208 : | |||
209 : | edgomez | 851 | image_null(&dec->cur); |
210 : | image_null(&dec->refn[0]); | ||
211 : | image_null(&dec->refn[1]); | ||
212 : | image_null(&dec->tmp); | ||
213 : | image_null(&dec->qtmp); | ||
214 : | |||
215 : | edgomez | 866 | /* image based GMC */ |
216 : | edgomez | 851 | image_null(&dec->gmc); |
217 : | |||
218 : | dec->mbs = NULL; | ||
219 : | dec->last_mbs = NULL; | ||
220 : | edgomez | 1382 | dec->qscale = NULL; |
221 : | edgomez | 851 | |
222 : | Isibaar | 3 | init_timer(); |
223 : | edgomez | 1382 | init_postproc(&dec->postproc); |
224 : | init_mpeg_matrix(dec->mpeg_quant_matrices); | ||
225 : | Isibaar | 3 | |
226 : | edgomez | 866 | /* For B-frame support (used to save reference frame's time */ |
227 : | edgomez | 851 | dec->frames = 0; |
228 : | chenm001 | 156 | dec->time = dec->time_base = dec->last_time_base = 0; |
229 : | edgomez | 851 | dec->low_delay = 0; |
230 : | dec->packed_mode = 0; | ||
231 : | syskin | 1439 | dec->time_inc_resolution = 1; /* until VOL header says otherwise */ |
232 : | edgomez | 195 | |
233 : | edgomez | 851 | dec->fixed_dimensions = (dec->width > 0 && dec->height > 0); |
234 : | |||
235 : | if (dec->fixed_dimensions) | ||
236 : | return decoder_resize(dec); | ||
237 : | else | ||
238 : | edgomez | 1382 | return 0; |
239 : | Isibaar | 3 | } |
240 : | |||
241 : | |||
242 : | edgomez | 195 | int |
243 : | decoder_destroy(DECODER * dec) | ||
244 : | Isibaar | 3 | { |
245 : | chenm001 | 156 | xvid_free(dec->last_mbs); |
246 : | Isibaar | 41 | xvid_free(dec->mbs); |
247 : | edgomez | 1382 | xvid_free(dec->qscale); |
248 : | edgomez | 851 | |
249 : | edgomez | 866 | /* image based GMC */ |
250 : | image_destroy(&dec->gmc, dec->edged_width, dec->edged_height); | ||
251 : | edgomez | 851 | |
252 : | chenm001 | 133 | image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); |
253 : | chenm001 | 156 | image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); |
254 : | edgomez | 851 | image_destroy(&dec->tmp, dec->edged_width, dec->edged_height); |
255 : | image_destroy(&dec->qtmp, dec->edged_width, dec->edged_height); | ||
256 : | Isibaar | 3 | image_destroy(&dec->cur, dec->edged_width, dec->edged_height); |
257 : | edgomez | 1382 | xvid_free(dec->mpeg_quant_matrices); |
258 : | Isibaar | 41 | xvid_free(dec); |
259 : | Isibaar | 3 | |
260 : | write_timer(); | ||
261 : | edgomez | 1382 | return 0; |
262 : | Isibaar | 3 | } |
263 : | |||
264 : | edgomez | 195 | static const int32_t dquant_table[4] = { |
265 : | Isibaar | 3 | -1, -2, 1, 2 |
266 : | }; | ||
267 : | |||
268 : | edgomez | 866 | /* decode an intra macroblock */ |
269 : | edgomez | 1382 | static void |
270 : | edgomez | 195 | decoder_mbintra(DECODER * dec, |
271 : | MACROBLOCK * pMB, | ||
272 : | const uint32_t x_pos, | ||
273 : | const uint32_t y_pos, | ||
274 : | const uint32_t acpred_flag, | ||
275 : | const uint32_t cbp, | ||
276 : | Bitstream * bs, | ||
277 : | const uint32_t quant, | ||
278 : | chenm001 | 272 | const uint32_t intra_dc_threshold, |
279 : | edgomez | 851 | const unsigned int bound, |
280 : | const int reduced_resolution) | ||
281 : | Isibaar | 3 | { |
282 : | edgomez | 78 | |
283 : | DECLARE_ALIGNED_MATRIX(block, 6, 64, int16_t, CACHE_LINE); | ||
284 : | edgomez | 195 | DECLARE_ALIGNED_MATRIX(data, 6, 64, int16_t, CACHE_LINE); |
285 : | edgomez | 78 | |
286 : | h | 81 | uint32_t stride = dec->edged_width; |
287 : | uint32_t stride2 = stride / 2; | ||
288 : | uint32_t next_block = stride * 8; | ||
289 : | h | 69 | uint32_t i; |
290 : | uint32_t iQuant = pMB->quant; | ||
291 : | uint8_t *pY_Cur, *pU_Cur, *pV_Cur; | ||
292 : | |||
293 : | edgomez | 851 | if (reduced_resolution) { |
294 : | pY_Cur = dec->cur.y + (y_pos << 5) * stride + (x_pos << 5); | ||
295 : | pU_Cur = dec->cur.u + (y_pos << 4) * stride2 + (x_pos << 4); | ||
296 : | pV_Cur = dec->cur.v + (y_pos << 4) * stride2 + (x_pos << 4); | ||
297 : | }else{ | ||
298 : | pY_Cur = dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); | ||
299 : | pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); | ||
300 : | pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); | ||
301 : | } | ||
302 : | h | 69 | |
303 : | edgomez | 866 | memset(block, 0, 6 * 64 * sizeof(int16_t)); /* clear */ |
304 : | h | 69 | |
305 : | edgomez | 195 | for (i = 0; i < 6; i++) { |
306 : | h | 69 | uint32_t iDcScaler = get_dc_scaler(iQuant, i < 4); |
307 : | Isibaar | 3 | int16_t predictors[8]; |
308 : | int start_coeff; | ||
309 : | |||
310 : | start_timer(); | ||
311 : | edgomez | 195 | predict_acdc(dec->mbs, x_pos, y_pos, dec->mb_width, i, &block[i * 64], |
312 : | edgomez | 1472 | iQuant, iDcScaler, predictors, bound); |
313 : | edgomez | 195 | if (!acpred_flag) { |
314 : | h | 69 | pMB->acpred_directions[i] = 0; |
315 : | Isibaar | 3 | } |
316 : | stop_prediction_timer(); | ||
317 : | |||
318 : | edgomez | 195 | if (quant < intra_dc_threshold) { |
319 : | Isibaar | 3 | int dc_size; |
320 : | int dc_dif; | ||
321 : | |||
322 : | edgomez | 195 | dc_size = i < 4 ? get_dc_size_lum(bs) : get_dc_size_chrom(bs); |
323 : | dc_dif = dc_size ? get_dc_dif(bs, dc_size) : 0; | ||
324 : | Isibaar | 3 | |
325 : | edgomez | 195 | if (dc_size > 8) { |
326 : | edgomez | 866 | BitstreamSkip(bs, 1); /* marker */ |
327 : | Isibaar | 3 | } |
328 : | edgomez | 195 | |
329 : | block[i * 64 + 0] = dc_dif; | ||
330 : | Isibaar | 3 | start_coeff = 1; |
331 : | chenm001 | 272 | |
332 : | edgomez | 1382 | DPRINTF(XVID_DEBUG_COEFF,"block[0] %i\n", dc_dif); |
333 : | edgomez | 195 | } else { |
334 : | Isibaar | 3 | start_coeff = 0; |
335 : | } | ||
336 : | |||
337 : | start_timer(); | ||
338 : | edgomez | 866 | if (cbp & (1 << (5 - i))) /* coded */ |
339 : | Isibaar | 3 | { |
340 : | edgomez | 851 | int direction = dec->alternate_vertical_scan ? |
341 : | 2 : pMB->acpred_directions[i]; | ||
342 : | |||
343 : | get_intra_block(bs, &block[i * 64], direction, start_coeff); | ||
344 : | Isibaar | 3 | } |
345 : | stop_coding_timer(); | ||
346 : | |||
347 : | start_timer(); | ||
348 : | edgomez | 1472 | add_acdc(pMB, i, &block[i * 64], iDcScaler, predictors, dec->bs_version); |
349 : | Isibaar | 3 | stop_prediction_timer(); |
350 : | |||
351 : | start_timer(); | ||
352 : | edgomez | 195 | if (dec->quant_type == 0) { |
353 : | edgomez | 1382 | dequant_h263_intra(&data[i * 64], &block[i * 64], iQuant, iDcScaler, dec->mpeg_quant_matrices); |
354 : | edgomez | 195 | } else { |
355 : | edgomez | 1382 | dequant_mpeg_intra(&data[i * 64], &block[i * 64], iQuant, iDcScaler, dec->mpeg_quant_matrices); |
356 : | Isibaar | 3 | } |
357 : | stop_iquant_timer(); | ||
358 : | |||
359 : | start_timer(); | ||
360 : | edgomez | 195 | idct(&data[i * 64]); |
361 : | Isibaar | 3 | stop_idct_timer(); |
362 : | edgomez | 851 | |
363 : | h | 69 | } |
364 : | Isibaar | 3 | |
365 : | edgomez | 195 | if (dec->interlacing && pMB->field_dct) { |
366 : | h | 81 | next_block = stride; |
367 : | stride *= 2; | ||
368 : | Isibaar | 3 | } |
369 : | h | 69 | |
370 : | start_timer(); | ||
371 : | edgomez | 851 | |
372 : | if (reduced_resolution) | ||
373 : | { | ||
374 : | next_block*=2; | ||
375 : | copy_upsampled_8x8_16to8(pY_Cur, &data[0 * 64], stride); | ||
376 : | copy_upsampled_8x8_16to8(pY_Cur + 16, &data[1 * 64], stride); | ||
377 : | copy_upsampled_8x8_16to8(pY_Cur + next_block, &data[2 * 64], stride); | ||
378 : | copy_upsampled_8x8_16to8(pY_Cur + 16 + next_block, &data[3 * 64], stride); | ||
379 : | copy_upsampled_8x8_16to8(pU_Cur, &data[4 * 64], stride2); | ||
380 : | copy_upsampled_8x8_16to8(pV_Cur, &data[5 * 64], stride2); | ||
381 : | }else{ | ||
382 : | transfer_16to8copy(pY_Cur, &data[0 * 64], stride); | ||
383 : | transfer_16to8copy(pY_Cur + 8, &data[1 * 64], stride); | ||
384 : | transfer_16to8copy(pY_Cur + next_block, &data[2 * 64], stride); | ||
385 : | transfer_16to8copy(pY_Cur + 8 + next_block, &data[3 * 64], stride); | ||
386 : | transfer_16to8copy(pU_Cur, &data[4 * 64], stride2); | ||
387 : | transfer_16to8copy(pV_Cur, &data[5 * 64], stride2); | ||
388 : | } | ||
389 : | h | 69 | stop_transfer_timer(); |
390 : | Isibaar | 3 | } |
391 : | |||
392 : | edgomez | 1382 | static void |
393 : | decoder_mb_decode(DECODER * dec, | ||
394 : | const uint32_t cbp, | ||
395 : | Bitstream * bs, | ||
396 : | uint8_t * pY_Cur, | ||
397 : | uint8_t * pU_Cur, | ||
398 : | uint8_t * pV_Cur, | ||
399 : | const int reduced_resolution, | ||
400 : | const MACROBLOCK * pMB) | ||
401 : | { | ||
402 : | DECLARE_ALIGNED_MATRIX(data, 6, 64, int16_t, CACHE_LINE); | ||
403 : | Isibaar | 3 | |
404 : | edgomez | 1382 | int stride = dec->edged_width; |
405 : | int next_block = stride * (reduced_resolution ? 16 : 8); | ||
406 : | const int stride2 = stride/2; | ||
407 : | int i; | ||
408 : | const uint32_t iQuant = pMB->quant; | ||
409 : | const int direction = dec->alternate_vertical_scan ? 2 : 0; | ||
410 : | edgomez | 1486 | typedef void (*get_inter_block_function_t)( |
411 : | Bitstream * bs, | ||
412 : | int16_t * block, | ||
413 : | int direction, | ||
414 : | const int quant, | ||
415 : | const uint16_t *matrix); | ||
416 : | Isibaar | 3 | |
417 : | edgomez | 1486 | const get_inter_block_function_t get_inter_block = (dec->quant_type == 0) |
418 : | ? get_inter_block_h263 | ||
419 : | : get_inter_block_mpeg; | ||
420 : | |||
421 : | memset(&data[0], 0, 6*64*sizeof(int16_t)); /* clear */ | ||
422 : | |||
423 : | edgomez | 1382 | for (i = 0; i < 6; i++) { |
424 : | Isibaar | 3 | |
425 : | edgomez | 1382 | if (cbp & (1 << (5 - i))) { /* coded */ |
426 : | |||
427 : | |||
428 : | edgomez | 1486 | /* Decode coeffs and dequantize on the fly */ |
429 : | edgomez | 1382 | start_timer(); |
430 : | edgomez | 1486 | get_inter_block(bs, &data[i*64], direction, iQuant, get_inter_matrix(dec->mpeg_quant_matrices)); |
431 : | edgomez | 1382 | stop_coding_timer(); |
432 : | |||
433 : | start_timer(); | ||
434 : | idct(&data[i * 64]); | ||
435 : | stop_idct_timer(); | ||
436 : | } | ||
437 : | } | ||
438 : | |||
439 : | if (dec->interlacing && pMB->field_dct) { | ||
440 : | next_block = stride; | ||
441 : | stride *= 2; | ||
442 : | } | ||
443 : | |||
444 : | start_timer(); | ||
445 : | if (reduced_resolution) { | ||
446 : | if (cbp & 32) | ||
447 : | add_upsampled_8x8_16to8(pY_Cur, &data[0 * 64], stride); | ||
448 : | if (cbp & 16) | ||
449 : | add_upsampled_8x8_16to8(pY_Cur + 16, &data[1 * 64], stride); | ||
450 : | if (cbp & 8) | ||
451 : | add_upsampled_8x8_16to8(pY_Cur + next_block, &data[2 * 64], stride); | ||
452 : | if (cbp & 4) | ||
453 : | add_upsampled_8x8_16to8(pY_Cur + 16 + next_block, &data[3 * 64], stride); | ||
454 : | if (cbp & 2) | ||
455 : | add_upsampled_8x8_16to8(pU_Cur, &data[4 * 64], stride2); | ||
456 : | if (cbp & 1) | ||
457 : | add_upsampled_8x8_16to8(pV_Cur, &data[5 * 64], stride2); | ||
458 : | } else { | ||
459 : | if (cbp & 32) | ||
460 : | transfer_16to8add(pY_Cur, &data[0 * 64], stride); | ||
461 : | if (cbp & 16) | ||
462 : | transfer_16to8add(pY_Cur + 8, &data[1 * 64], stride); | ||
463 : | if (cbp & 8) | ||
464 : | transfer_16to8add(pY_Cur + next_block, &data[2 * 64], stride); | ||
465 : | if (cbp & 4) | ||
466 : | transfer_16to8add(pY_Cur + 8 + next_block, &data[3 * 64], stride); | ||
467 : | if (cbp & 2) | ||
468 : | transfer_16to8add(pU_Cur, &data[4 * 64], stride2); | ||
469 : | if (cbp & 1) | ||
470 : | transfer_16to8add(pV_Cur, &data[5 * 64], stride2); | ||
471 : | } | ||
472 : | stop_transfer_timer(); | ||
473 : | } | ||
474 : | |||
475 : | edgomez | 866 | /* decode an inter macroblock */ |
476 : | edgomez | 1382 | static void |
477 : | edgomez | 195 | decoder_mbinter(DECODER * dec, |
478 : | const MACROBLOCK * pMB, | ||
479 : | const uint32_t x_pos, | ||
480 : | const uint32_t y_pos, | ||
481 : | const uint32_t cbp, | ||
482 : | Bitstream * bs, | ||
483 : | edgomez | 851 | const uint32_t rounding, |
484 : | edgomez | 1382 | const int reduced_resolution, |
485 : | const int ref) | ||
486 : | Isibaar | 3 | { |
487 : | h | 81 | uint32_t stride = dec->edged_width; |
488 : | uint32_t stride2 = stride / 2; | ||
489 : | edgomez | 78 | uint32_t i; |
490 : | edgomez | 1382 | |
491 : | h | 69 | uint8_t *pY_Cur, *pU_Cur, *pV_Cur; |
492 : | edgomez | 851 | |
493 : | Isibaar | 3 | int uv_dx, uv_dy; |
494 : | edgomez | 851 | VECTOR mv[4]; /* local copy of mvs */ |
495 : | Isibaar | 3 | |
496 : | edgomez | 851 | if (reduced_resolution) { |
497 : | pY_Cur = dec->cur.y + (y_pos << 5) * stride + (x_pos << 5); | ||
498 : | pU_Cur = dec->cur.u + (y_pos << 4) * stride2 + (x_pos << 4); | ||
499 : | pV_Cur = dec->cur.v + (y_pos << 4) * stride2 + (x_pos << 4); | ||
500 : | for (i = 0; i < 4; i++) { | ||
501 : | mv[i].x = RRV_MV_SCALEUP(pMB->mvs[i].x); | ||
502 : | mv[i].y = RRV_MV_SCALEUP(pMB->mvs[i].y); | ||
503 : | } | ||
504 : | } else { | ||
505 : | pY_Cur = dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); | ||
506 : | pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); | ||
507 : | pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); | ||
508 : | for (i = 0; i < 4; i++) | ||
509 : | mv[i] = pMB->mvs[i]; | ||
510 : | } | ||
511 : | Isibaar | 3 | |
512 : | syskin | 1420 | for (i = 0; i < 4; i++) { |
513 : | /* clip to valid range */ | ||
514 : | int border = (int)(dec->mb_width - x_pos) << (5 + dec->quarterpel); | ||
515 : | if (mv[i].x > border) { | ||
516 : | DPRINTF(XVID_DEBUG_MV, "mv.x > max -- %d > %d, MB %d, %d", mv[i].x, border, x_pos, y_pos); | ||
517 : | mv[i].x = border; | ||
518 : | } else { | ||
519 : | border = (-(int)x_pos-1) << (5 + dec->quarterpel); | ||
520 : | if (mv[i].x < border) { | ||
521 : | DPRINTF(XVID_DEBUG_MV, "mv.x < min -- %d < %d, MB %d, %d", mv[i].x, border, x_pos, y_pos); | ||
522 : | mv[i].x = border; | ||
523 : | } | ||
524 : | } | ||
525 : | |||
526 : | border = (int)(dec->mb_height - y_pos) << (5 + dec->quarterpel); | ||
527 : | if (mv[i].y > border) { | ||
528 : | DPRINTF(XVID_DEBUG_MV, "mv.y > max -- %d > %d, MB %d, %d", mv[i].y, border, x_pos, y_pos); | ||
529 : | mv[i].y = border; | ||
530 : | } else { | ||
531 : | border = (-(int)y_pos-1) << (5 + dec->quarterpel); | ||
532 : | if (mv[i].y < border) { | ||
533 : | DPRINTF(XVID_DEBUG_MV, "mv.y < min -- %d < %d, MB %d, %d", mv[i].y, border, x_pos, y_pos); | ||
534 : | mv[i].y = border; | ||
535 : | } | ||
536 : | } | ||
537 : | } | ||
538 : | |||
539 : | edgomez | 1382 | start_timer(); |
540 : | |||
541 : | if (pMB->mode != MODE_INTER4V) { /* INTER, INTER_Q, NOT_CODED, FORWARD, BACKWARD */ | ||
542 : | |||
543 : | uv_dx = mv[0].x; | ||
544 : | uv_dy = mv[0].y; | ||
545 : | if (dec->quarterpel) { | ||
546 : | uv_dx /= 2; | ||
547 : | uv_dy /= 2; | ||
548 : | } | ||
549 : | edgomez | 851 | uv_dx = (uv_dx >> 1) + roundtab_79[uv_dx & 0x3]; |
550 : | uv_dy = (uv_dy >> 1) + roundtab_79[uv_dy & 0x3]; | ||
551 : | |||
552 : | if (reduced_resolution) | ||
553 : | interpolate32x32_switch(dec->cur.y, dec->refn[0].y, 32*x_pos, 32*y_pos, | ||
554 : | edgomez | 1382 | mv[0].x, mv[0].y, stride, rounding); |
555 : | else if (dec->quarterpel) | ||
556 : | interpolate16x16_quarterpel(dec->cur.y, dec->refn[ref].y, dec->qtmp.y, dec->qtmp.y + 64, | ||
557 : | dec->qtmp.y + 128, 16*x_pos, 16*y_pos, | ||
558 : | edgomez | 851 | mv[0].x, mv[0].y, stride, rounding); |
559 : | edgomez | 1382 | else |
560 : | interpolate16x16_switch(dec->cur.y, dec->refn[ref].y, 16*x_pos, 16*y_pos, | ||
561 : | mv[0].x, mv[0].y, stride, rounding); | ||
562 : | edgomez | 851 | |
563 : | } else { /* MODE_INTER4V */ | ||
564 : | Isibaar | 3 | |
565 : | edgomez | 1382 | if(dec->quarterpel) { |
566 : | uv_dx = (mv[0].x / 2) + (mv[1].x / 2) + (mv[2].x / 2) + (mv[3].x / 2); | ||
567 : | uv_dy = (mv[0].y / 2) + (mv[1].y / 2) + (mv[2].y / 2) + (mv[3].y / 2); | ||
568 : | } else { | ||
569 : | uv_dx = mv[0].x + mv[1].x + mv[2].x + mv[3].x; | ||
570 : | uv_dy = mv[0].y + mv[1].y + mv[2].y + mv[3].y; | ||
571 : | } | ||
572 : | Isibaar | 333 | |
573 : | edgomez | 1382 | uv_dx = (uv_dx >> 3) + roundtab_76[uv_dx & 0xf]; |
574 : | uv_dy = (uv_dy >> 3) + roundtab_76[uv_dy & 0xf]; | ||
575 : | Isibaar | 333 | |
576 : | edgomez | 1382 | if (reduced_resolution) { |
577 : | edgomez | 851 | interpolate16x16_switch(dec->cur.y, dec->refn[0].y, 32*x_pos, 32*y_pos, |
578 : | edgomez | 1382 | mv[0].x, mv[0].y, stride, rounding); |
579 : | edgomez | 851 | interpolate16x16_switch(dec->cur.y, dec->refn[0].y , 32*x_pos + 16, 32*y_pos, |
580 : | edgomez | 1382 | mv[1].x, mv[1].y, stride, rounding); |
581 : | edgomez | 851 | interpolate16x16_switch(dec->cur.y, dec->refn[0].y , 32*x_pos, 32*y_pos + 16, |
582 : | edgomez | 1382 | mv[2].x, mv[2].y, stride, rounding); |
583 : | interpolate16x16_switch(dec->cur.y, dec->refn[0].y , 32*x_pos + 16, 32*y_pos + 16, | ||
584 : | mv[3].x, mv[3].y, stride, rounding); | ||
585 : | edgomez | 851 | interpolate16x16_switch(dec->cur.u, dec->refn[0].u , 16 * x_pos, 16 * y_pos, |
586 : | edgomez | 1382 | uv_dx, uv_dy, stride2, rounding); |
587 : | edgomez | 851 | interpolate16x16_switch(dec->cur.v, dec->refn[0].v , 16 * x_pos, 16 * y_pos, |
588 : | edgomez | 1382 | uv_dx, uv_dy, stride2, rounding); |
589 : | edgomez | 851 | |
590 : | edgomez | 1382 | } else if (dec->quarterpel) { |
591 : | interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y , dec->qtmp.y, dec->qtmp.y + 64, | ||
592 : | dec->qtmp.y + 128, 16*x_pos, 16*y_pos, | ||
593 : | mv[0].x, mv[0].y, stride, rounding); | ||
594 : | interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y , dec->qtmp.y, dec->qtmp.y + 64, | ||
595 : | dec->qtmp.y + 128, 16*x_pos + 8, 16*y_pos, | ||
596 : | mv[1].x, mv[1].y, stride, rounding); | ||
597 : | interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y , dec->qtmp.y, dec->qtmp.y + 64, | ||
598 : | dec->qtmp.y + 128, 16*x_pos, 16*y_pos + 8, | ||
599 : | mv[2].x, mv[2].y, stride, rounding); | ||
600 : | interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y , dec->qtmp.y, dec->qtmp.y + 64, | ||
601 : | dec->qtmp.y + 128, 16*x_pos + 8, 16*y_pos + 8, | ||
602 : | mv[3].x, mv[3].y, stride, rounding); | ||
603 : | } else { | ||
604 : | interpolate8x8_switch(dec->cur.y, dec->refn[0].y , 16*x_pos, 16*y_pos, | ||
605 : | mv[0].x, mv[0].y, stride, rounding); | ||
606 : | interpolate8x8_switch(dec->cur.y, dec->refn[0].y , 16*x_pos + 8, 16*y_pos, | ||
607 : | mv[1].x, mv[1].y, stride, rounding); | ||
608 : | interpolate8x8_switch(dec->cur.y, dec->refn[0].y , 16*x_pos, 16*y_pos + 8, | ||
609 : | mv[2].x, mv[2].y, stride, rounding); | ||
610 : | interpolate8x8_switch(dec->cur.y, dec->refn[0].y , 16*x_pos + 8, 16*y_pos + 8, | ||
611 : | mv[3].x, mv[3].y, stride, rounding); | ||
612 : | edgomez | 851 | } |
613 : | Isibaar | 3 | } |
614 : | |||
615 : | edgomez | 1382 | /* chroma */ |
616 : | if (reduced_resolution) { | ||
617 : | interpolate16x16_switch(dec->cur.u, dec->refn[0].u, 16 * x_pos, 16 * y_pos, | ||
618 : | uv_dx, uv_dy, stride2, rounding); | ||
619 : | interpolate16x16_switch(dec->cur.v, dec->refn[0].v, 16 * x_pos, 16 * y_pos, | ||
620 : | uv_dx, uv_dy, stride2, rounding); | ||
621 : | } else { | ||
622 : | interpolate8x8_switch(dec->cur.u, dec->refn[ref].u, 8 * x_pos, 8 * y_pos, | ||
623 : | uv_dx, uv_dy, stride2, rounding); | ||
624 : | interpolate8x8_switch(dec->cur.v, dec->refn[ref].v, 8 * x_pos, 8 * y_pos, | ||
625 : | uv_dx, uv_dy, stride2, rounding); | ||
626 : | Isibaar | 3 | } |
627 : | h | 69 | |
628 : | edgomez | 1382 | stop_comp_timer(); |
629 : | h | 69 | |
630 : | edgomez | 1382 | if (cbp) |
631 : | decoder_mb_decode(dec, cbp, bs, pY_Cur, pU_Cur, pV_Cur, | ||
632 : | reduced_resolution, pMB); | ||
633 : | edgomez | 851 | } |
634 : | |||
635 : | static void | ||
636 : | decoder_mbgmc(DECODER * dec, | ||
637 : | MACROBLOCK * const pMB, | ||
638 : | const uint32_t x_pos, | ||
639 : | const uint32_t y_pos, | ||
640 : | const uint32_t fcode, | ||
641 : | const uint32_t cbp, | ||
642 : | Bitstream * bs, | ||
643 : | edgomez | 1382 | const uint32_t rounding) |
644 : | edgomez | 851 | { |
645 : | const uint32_t stride = dec->edged_width; | ||
646 : | const uint32_t stride2 = stride / 2; | ||
647 : | edgomez | 1382 | |
648 : | edgomez | 851 | uint8_t *const pY_Cur=dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); |
649 : | uint8_t *const pU_Cur=dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); | ||
650 : | uint8_t *const pV_Cur=dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); | ||
651 : | |||
652 : | edgomez | 1382 | NEW_GMC_DATA * gmc_data = &dec->new_gmc_data; |
653 : | |||
654 : | edgomez | 851 | pMB->mvs[0] = pMB->mvs[1] = pMB->mvs[2] = pMB->mvs[3] = pMB->amv; |
655 : | |||
656 : | start_timer(); | ||
657 : | edgomez | 1382 | |
658 : | edgomez | 851 | /* this is where the calculations are done */ |
659 : | |||
660 : | edgomez | 1382 | gmc_data->predict_16x16(gmc_data, |
661 : | dec->cur.y + y_pos*16*stride + x_pos*16, dec->refn[0].y, | ||
662 : | stride, stride, x_pos, y_pos, rounding); | ||
663 : | edgomez | 851 | |
664 : | edgomez | 1382 | gmc_data->predict_8x8(gmc_data, |
665 : | dec->cur.u + y_pos*8*stride2 + x_pos*8, dec->refn[0].u, | ||
666 : | dec->cur.v + y_pos*8*stride2 + x_pos*8, dec->refn[0].v, | ||
667 : | stride2, stride2, x_pos, y_pos, rounding); | ||
668 : | edgomez | 851 | |
669 : | edgomez | 1382 | gmc_data->get_average_mv(gmc_data, &pMB->amv, x_pos, y_pos, dec->quarterpel); |
670 : | edgomez | 851 | |
671 : | edgomez | 1382 | pMB->amv.x = gmc_sanitize(pMB->amv.x, dec->quarterpel, fcode); |
672 : | pMB->amv.y = gmc_sanitize(pMB->amv.y, dec->quarterpel, fcode); | ||
673 : | edgomez | 851 | |
674 : | edgomez | 1382 | pMB->mvs[0] = pMB->mvs[1] = pMB->mvs[2] = pMB->mvs[3] = pMB->amv; |
675 : | edgomez | 851 | |
676 : | edgomez | 1382 | stop_transfer_timer(); |
677 : | edgomez | 851 | |
678 : | edgomez | 1382 | if (cbp) |
679 : | decoder_mb_decode(dec, cbp, bs, pY_Cur, pU_Cur, pV_Cur, 0, pMB); | ||
680 : | edgomez | 851 | |
681 : | Isibaar | 3 | } |
682 : | |||
683 : | |||
684 : | edgomez | 1382 | static void |
685 : | edgomez | 195 | decoder_iframe(DECODER * dec, |
686 : | edgomez | 1382 | Bitstream * bs, |
687 : | int reduced_resolution, | ||
688 : | int quant, | ||
689 : | int intra_dc_threshold) | ||
690 : | Isibaar | 3 | { |
691 : | chenm001 | 272 | uint32_t bound; |
692 : | Isibaar | 3 | uint32_t x, y; |
693 : | edgomez | 851 | uint32_t mb_width = dec->mb_width; |
694 : | uint32_t mb_height = dec->mb_height; | ||
695 : | edgomez | 1382 | |
696 : | if (reduced_resolution) { | ||
697 : | edgomez | 851 | mb_width = (dec->width + 31) / 32; |
698 : | mb_height = (dec->height + 31) / 32; | ||
699 : | } | ||
700 : | Isibaar | 3 | |
701 : | chenm001 | 272 | bound = 0; |
702 : | |||
703 : | edgomez | 851 | for (y = 0; y < mb_height; y++) { |
704 : | for (x = 0; x < mb_width; x++) { | ||
705 : | chenm001 | 272 | MACROBLOCK *mb; |
706 : | Isibaar | 3 | uint32_t mcbpc; |
707 : | uint32_t cbpc; | ||
708 : | uint32_t acpred_flag; | ||
709 : | uint32_t cbpy; | ||
710 : | uint32_t cbp; | ||
711 : | |||
712 : | chenm001 | 272 | while (BitstreamShowBits(bs, 9) == 1) |
713 : | BitstreamSkip(bs, 9); | ||
714 : | |||
715 : | if (check_resync_marker(bs, 0)) | ||
716 : | { | ||
717 : | edgomez | 1382 | bound = read_video_packet_header(bs, dec, 0, |
718 : | edgomez | 851 | &quant, NULL, NULL, &intra_dc_threshold); |
719 : | x = bound % mb_width; | ||
720 : | y = bound / mb_width; | ||
721 : | chenm001 | 272 | } |
722 : | mb = &dec->mbs[y * dec->mb_width + x]; | ||
723 : | |||
724 : | edgomez | 1382 | DPRINTF(XVID_DEBUG_MB, "macroblock (%i,%i) %08x\n", x, y, BitstreamShowBits(bs, 32)); |
725 : | chenm001 | 272 | |
726 : | Isibaar | 3 | mcbpc = get_mcbpc_intra(bs); |
727 : | mb->mode = mcbpc & 7; | ||
728 : | cbpc = (mcbpc >> 4); | ||
729 : | |||
730 : | acpred_flag = BitstreamGetBit(bs); | ||
731 : | |||
732 : | cbpy = get_cbpy(bs, 1); | ||
733 : | cbp = (cbpy << 2) | cbpc; | ||
734 : | |||
735 : | edgomez | 195 | if (mb->mode == MODE_INTRA_Q) { |
736 : | quant += dquant_table[BitstreamGetBits(bs, 2)]; | ||
737 : | if (quant > 31) { | ||
738 : | Isibaar | 3 | quant = 31; |
739 : | edgomez | 195 | } else if (quant < 1) { |
740 : | Isibaar | 3 | quant = 1; |
741 : | } | ||
742 : | } | ||
743 : | mb->quant = quant; | ||
744 : | chenm001 | 297 | mb->mvs[0].x = mb->mvs[0].y = |
745 : | mb->mvs[1].x = mb->mvs[1].y = | ||
746 : | mb->mvs[2].x = mb->mvs[2].y = | ||
747 : | mb->mvs[3].x = mb->mvs[3].y =0; | ||
748 : | Isibaar | 3 | |
749 : | edgomez | 195 | if (dec->interlacing) { |
750 : | h | 69 | mb->field_dct = BitstreamGetBit(bs); |
751 : | edgomez | 1382 | DPRINTF(XVID_DEBUG_MB,"deci: field_dct: %i\n", mb->field_dct); |
752 : | h | 69 | } |
753 : | |||
754 : | edgomez | 195 | decoder_mbintra(dec, mb, x, y, acpred_flag, cbp, bs, quant, |
755 : | edgomez | 851 | intra_dc_threshold, bound, reduced_resolution); |
756 : | |||
757 : | Isibaar | 3 | } |
758 : | albeu | 315 | if(dec->out_frm) |
759 : | edgomez | 1382 | output_slice(&dec->cur, dec->edged_width,dec->width,dec->out_frm,0,y,mb_width); |
760 : | Isibaar | 3 | } |
761 : | edgomez | 78 | |
762 : | Isibaar | 3 | } |
763 : | |||
764 : | |||
765 : | edgomez | 1382 | static void |
766 : | edgomez | 195 | get_motion_vector(DECODER * dec, |
767 : | edgomez | 1382 | Bitstream * bs, |
768 : | int x, | ||
769 : | int y, | ||
770 : | int k, | ||
771 : | VECTOR * ret_mv, | ||
772 : | int fcode, | ||
773 : | const int bound) | ||
774 : | Isibaar | 3 | { |
775 : | edgomez | 78 | |
776 : | edgomez | 1382 | const int scale_fac = 1 << (fcode - 1); |
777 : | const int high = (32 * scale_fac) - 1; | ||
778 : | const int low = ((-32) * scale_fac); | ||
779 : | const int range = (64 * scale_fac); | ||
780 : | Isibaar | 3 | |
781 : | edgomez | 1382 | const VECTOR pmv = get_pmv2(dec->mbs, dec->mb_width, bound, x, y, k); |
782 : | edgomez | 851 | VECTOR mv; |
783 : | Isibaar | 3 | |
784 : | edgomez | 851 | mv.x = get_mv(bs, fcode); |
785 : | mv.y = get_mv(bs, fcode); | ||
786 : | edgomez | 195 | |
787 : | 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); |
788 : | suxen_drol | 252 | |
789 : | edgomez | 851 | mv.x += pmv.x; |
790 : | mv.y += pmv.y; | ||
791 : | chenm001 | 272 | |
792 : | edgomez | 851 | if (mv.x < low) { |
793 : | mv.x += range; | ||
794 : | } else if (mv.x > high) { | ||
795 : | mv.x -= range; | ||
796 : | Isibaar | 3 | } |
797 : | |||
798 : | edgomez | 851 | if (mv.y < low) { |
799 : | mv.y += range; | ||
800 : | } else if (mv.y > high) { | ||
801 : | mv.y -= range; | ||
802 : | Isibaar | 3 | } |
803 : | |||
804 : | edgomez | 1382 | ret_mv->x = mv.x; |
805 : | ret_mv->y = mv.y; | ||
806 : | } | ||
807 : | edgomez | 851 | |
808 : | /* for P_VOP set gmc_warp to NULL */ | ||
809 : | edgomez | 1382 | static void |
810 : | edgomez | 195 | decoder_pframe(DECODER * dec, |
811 : | edgomez | 1382 | Bitstream * bs, |
812 : | int rounding, | ||
813 : | int reduced_resolution, | ||
814 : | int quant, | ||
815 : | int fcode, | ||
816 : | int intra_dc_threshold, | ||
817 : | const WARPPOINTS *const gmc_warp) | ||
818 : | Isibaar | 3 | { |
819 : | uint32_t x, y; | ||
820 : | chenm001 | 272 | uint32_t bound; |
821 : | albeu | 315 | int cp_mb, st_mb; |
822 : | edgomez | 851 | uint32_t mb_width = dec->mb_width; |
823 : | uint32_t mb_height = dec->mb_height; | ||
824 : | edgomez | 1382 | |
825 : | if (reduced_resolution) { | ||
826 : | edgomez | 851 | mb_width = (dec->width + 31) / 32; |
827 : | mb_height = (dec->height + 31) / 32; | ||
828 : | } | ||
829 : | Isibaar | 3 | |
830 : | edgomez | 1451 | if (!dec->is_edged[0]) { |
831 : | start_timer(); | ||
832 : | image_setedges(&dec->refn[0], dec->edged_width, dec->edged_height, | ||
833 : | dec->width, dec->height, dec->bs_version); | ||
834 : | dec->is_edged[0] = 1; | ||
835 : | stop_edges_timer(); | ||
836 : | } | ||
837 : | Isibaar | 3 | |
838 : | edgomez | 1382 | if (gmc_warp) { |
839 : | /* accuracy: 0==1/2, 1=1/4, 2=1/8, 3=1/16 */ | ||
840 : | generate_GMCparameters( dec->sprite_warping_points, | ||
841 : | dec->sprite_warping_accuracy, gmc_warp, | ||
842 : | dec->width, dec->height, &dec->new_gmc_data); | ||
843 : | edgomez | 851 | |
844 : | edgomez | 1382 | /* image warping is done block-based in decoder_mbgmc(), now */ |
845 : | edgomez | 851 | } |
846 : | |||
847 : | chenm001 | 272 | bound = 0; |
848 : | |||
849 : | edgomez | 851 | for (y = 0; y < mb_height; y++) { |
850 : | albeu | 315 | cp_mb = st_mb = 0; |
851 : | edgomez | 851 | for (x = 0; x < mb_width; x++) { |
852 : | chenm001 | 272 | MACROBLOCK *mb; |
853 : | Isibaar | 3 | |
854 : | edgomez | 866 | /* skip stuffing */ |
855 : | chenm001 | 272 | while (BitstreamShowBits(bs, 10) == 1) |
856 : | BitstreamSkip(bs, 10); | ||
857 : | |||
858 : | edgomez | 1382 | if (check_resync_marker(bs, fcode - 1)) { |
859 : | bound = read_video_packet_header(bs, dec, fcode - 1, | ||
860 : | edgomez | 851 | &quant, &fcode, NULL, &intra_dc_threshold); |
861 : | x = bound % mb_width; | ||
862 : | y = bound / mb_width; | ||
863 : | chenm001 | 272 | } |
864 : | mb = &dec->mbs[y * dec->mb_width + x]; | ||
865 : | |||
866 : | edgomez | 1382 | DPRINTF(XVID_DEBUG_MB, "macroblock (%i,%i) %08x\n", x, y, BitstreamShowBits(bs, 32)); |
867 : | chenm001 | 272 | |
868 : | edgomez | 1382 | if (!(BitstreamGetBit(bs))) { /* block _is_ coded */ |
869 : | uint32_t mcbpc, cbpc, cbpy, cbp; | ||
870 : | uint32_t intra, acpred_flag = 0; | ||
871 : | edgomez | 866 | int mcsel = 0; /* mcsel: '0'=local motion, '1'=GMC */ |
872 : | Isibaar | 3 | |
873 : | albeu | 315 | cp_mb++; |
874 : | Isibaar | 3 | mcbpc = get_mcbpc_inter(bs); |
875 : | mb->mode = mcbpc & 7; | ||
876 : | cbpc = (mcbpc >> 4); | ||
877 : | |||
878 : | edgomez | 1382 | DPRINTF(XVID_DEBUG_MB, "mode %i\n", mb->mode); |
879 : | DPRINTF(XVID_DEBUG_MB, "cbpc %i\n", cbpc); | ||
880 : | |||
881 : | Isibaar | 3 | intra = (mb->mode == MODE_INTRA || mb->mode == MODE_INTRA_Q); |
882 : | edgomez | 195 | |
883 : | edgomez | 851 | if (gmc_warp && (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q)) |
884 : | mcsel = BitstreamGetBit(bs); | ||
885 : | edgomez | 1382 | else if (intra) |
886 : | acpred_flag = BitstreamGetBit(bs); | ||
887 : | edgomez | 851 | |
888 : | Isibaar | 3 | cbpy = get_cbpy(bs, intra); |
889 : | edgomez | 1382 | DPRINTF(XVID_DEBUG_MB, "cbpy %i mcsel %i \n", cbpy,mcsel); |
890 : | chenm001 | 272 | |
891 : | Isibaar | 3 | cbp = (cbpy << 2) | cbpc; |
892 : | |||
893 : | edgomez | 195 | if (mb->mode == MODE_INTER_Q || mb->mode == MODE_INTRA_Q) { |
894 : | chenm001 | 272 | int dquant = dquant_table[BitstreamGetBits(bs, 2)]; |
895 : | edgomez | 1382 | DPRINTF(XVID_DEBUG_MB, "dquant %i\n", dquant); |
896 : | chenm001 | 272 | quant += dquant; |
897 : | edgomez | 195 | if (quant > 31) { |
898 : | Isibaar | 3 | quant = 31; |
899 : | chenm001 | 272 | } else if (quant < 1) { |
900 : | Isibaar | 3 | quant = 1; |
901 : | } | ||
902 : | edgomez | 1382 | DPRINTF(XVID_DEBUG_MB, "quant %i\n", quant); |
903 : | Isibaar | 3 | } |
904 : | mb->quant = quant; | ||
905 : | h | 69 | |
906 : | edgomez | 195 | if (dec->interlacing) { |
907 : | h | 388 | if (cbp || intra) { |
908 : | mb->field_dct = BitstreamGetBit(bs); | ||
909 : | edgomez | 1382 | DPRINTF(XVID_DEBUG_MB,"decp: field_dct: %i\n", mb->field_dct); |
910 : | h | 388 | } |
911 : | Isibaar | 3 | |
912 : | edgomez | 1382 | if ((mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) && !mcsel) { |
913 : | h | 69 | mb->field_pred = BitstreamGetBit(bs); |
914 : | edgomez | 1382 | DPRINTF(XVID_DEBUG_MB, "decp: field_pred: %i\n", mb->field_pred); |
915 : | h | 69 | |
916 : | edgomez | 195 | if (mb->field_pred) { |
917 : | h | 69 | mb->field_for_top = BitstreamGetBit(bs); |
918 : | edgomez | 1382 | DPRINTF(XVID_DEBUG_MB,"decp: field_for_top: %i\n", mb->field_for_top); |
919 : | h | 69 | mb->field_for_bot = BitstreamGetBit(bs); |
920 : | edgomez | 1382 | DPRINTF(XVID_DEBUG_MB,"decp: field_for_bot: %i\n", mb->field_for_bot); |
921 : | h | 69 | } |
922 : | } | ||
923 : | Isibaar | 3 | } |
924 : | edgomez | 1382 | |
925 : | edgomez | 851 | if (mcsel) { |
926 : | edgomez | 1382 | decoder_mbgmc(dec, mb, x, y, fcode, cbp, bs, rounding); |
927 : | edgomez | 851 | continue; |
928 : | h | 69 | |
929 : | edgomez | 851 | } else if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) { |
930 : | |||
931 : | edgomez | 195 | if (dec->interlacing && mb->field_pred) { |
932 : | edgomez | 1382 | get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], fcode, bound); |
933 : | get_motion_vector(dec, bs, x, y, 0, &mb->mvs[1], fcode, bound); | ||
934 : | edgomez | 195 | } else { |
935 : | edgomez | 1382 | get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], fcode, bound); |
936 : | edgomez | 851 | mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = mb->mvs[0]; |
937 : | h | 69 | } |
938 : | chl | 339 | } else if (mb->mode == MODE_INTER4V ) { |
939 : | chenm001 | 272 | get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], fcode, bound); |
940 : | get_motion_vector(dec, bs, x, y, 1, &mb->mvs[1], fcode, bound); | ||
941 : | get_motion_vector(dec, bs, x, y, 2, &mb->mvs[2], fcode, bound); | ||
942 : | get_motion_vector(dec, bs, x, y, 3, &mb->mvs[3], fcode, bound); | ||
943 : | edgomez | 1382 | } else { /* MODE_INTRA, MODE_INTRA_Q */ |
944 : | mb->mvs[0].x = mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = 0; | ||
945 : | mb->mvs[0].y = mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = 0; | ||
946 : | edgomez | 195 | decoder_mbintra(dec, mb, x, y, acpred_flag, cbp, bs, quant, |
947 : | edgomez | 851 | intra_dc_threshold, bound, reduced_resolution); |
948 : | Isibaar | 3 | continue; |
949 : | } | ||
950 : | |||
951 : | edgomez | 1382 | decoder_mbinter(dec, mb, x, y, cbp, bs, |
952 : | rounding, reduced_resolution, 0); | ||
953 : | edgomez | 851 | |
954 : | edgomez | 1382 | } else if (gmc_warp) { /* a not coded S(GMC)-VOP macroblock */ |
955 : | edgomez | 851 | mb->mode = MODE_NOT_CODED_GMC; |
956 : | edgomez | 1382 | mb->quant = quant; |
957 : | decoder_mbgmc(dec, mb, x, y, fcode, 0x00, bs, rounding); | ||
958 : | edgomez | 514 | |
959 : | edgomez | 851 | if(dec->out_frm && cp_mb > 0) { |
960 : | edgomez | 1382 | output_slice(&dec->cur, dec->edged_width,dec->width,dec->out_frm,st_mb,y,cp_mb); |
961 : | cp_mb = 0; | ||
962 : | edgomez | 851 | } |
963 : | st_mb = x+1; | ||
964 : | edgomez | 1382 | } else { /* not coded P_VOP macroblock */ |
965 : | chenm001 | 156 | mb->mode = MODE_NOT_CODED; |
966 : | edgomez | 1382 | mb->quant = quant; |
967 : | edgomez | 851 | |
968 : | Isibaar | 3 | mb->mvs[0].x = mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = 0; |
969 : | mb->mvs[0].y = mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = 0; | ||
970 : | edgomez | 195 | |
971 : | edgomez | 1382 | decoder_mbinter(dec, mb, x, y, 0, bs, |
972 : | rounding, reduced_resolution, 0); | ||
973 : | Isibaar | 3 | |
974 : | albeu | 315 | if(dec->out_frm && cp_mb > 0) { |
975 : | edgomez | 1382 | output_slice(&dec->cur, dec->edged_width,dec->width,dec->out_frm,st_mb,y,cp_mb); |
976 : | cp_mb = 0; | ||
977 : | albeu | 315 | } |
978 : | st_mb = x+1; | ||
979 : | Isibaar | 3 | } |
980 : | } | ||
981 : | edgomez | 1382 | |
982 : | albeu | 315 | if(dec->out_frm && cp_mb > 0) |
983 : | edgomez | 1382 | output_slice(&dec->cur, dec->edged_width,dec->width,dec->out_frm,st_mb,y,cp_mb); |
984 : | Isibaar | 3 | } |
985 : | } | ||
986 : | |||
987 : | edgomez | 851 | |
988 : | edgomez | 866 | /* decode B-frame motion vector */ |
989 : | edgomez | 1382 | static void |
990 : | get_b_motion_vector(Bitstream * bs, | ||
991 : | edgomez | 851 | VECTOR * mv, |
992 : | int fcode, | ||
993 : | edgomez | 1382 | const VECTOR pmv, |
994 : | const DECODER * const dec, | ||
995 : | const int x, const int y) | ||
996 : | edgomez | 851 | { |
997 : | edgomez | 1382 | const int scale_fac = 1 << (fcode - 1); |
998 : | const int high = (32 * scale_fac) - 1; | ||
999 : | const int low = ((-32) * scale_fac); | ||
1000 : | const int range = (64 * scale_fac); | ||
1001 : | edgomez | 851 | |
1002 : | edgomez | 1382 | int mv_x = get_mv(bs, fcode); |
1003 : | int mv_y = get_mv(bs, fcode); | ||
1004 : | edgomez | 851 | |
1005 : | edgomez | 1382 | mv_x += pmv.x; |
1006 : | mv_y += pmv.y; | ||
1007 : | edgomez | 851 | |
1008 : | edgomez | 1382 | if (mv_x < low) |
1009 : | edgomez | 851 | mv_x += range; |
1010 : | edgomez | 1382 | else if (mv_x > high) |
1011 : | edgomez | 851 | mv_x -= range; |
1012 : | |||
1013 : | edgomez | 1382 | if (mv_y < low) |
1014 : | edgomez | 851 | mv_y += range; |
1015 : | edgomez | 1382 | else if (mv_y > high) |
1016 : | edgomez | 851 | mv_y -= range; |
1017 : | |||
1018 : | edgomez | 1382 | mv->x = mv_x; |
1019 : | mv->y = mv_y; | ||
1020 : | edgomez | 851 | } |
1021 : | |||
1022 : | edgomez | 1382 | /* decode an B-frame direct & interpolate macroblock */ |
1023 : | static void | ||
1024 : | edgomez | 851 | decoder_bf_interpolate_mbinter(DECODER * dec, |
1025 : | edgomez | 1382 | IMAGE forward, |
1026 : | IMAGE backward, | ||
1027 : | const MACROBLOCK * pMB, | ||
1028 : | const uint32_t x_pos, | ||
1029 : | const uint32_t y_pos, | ||
1030 : | Bitstream * bs, | ||
1031 : | const int direct) | ||
1032 : | edgomez | 851 | { |
1033 : | uint32_t stride = dec->edged_width; | ||
1034 : | uint32_t stride2 = stride / 2; | ||
1035 : | int uv_dx, uv_dy; | ||
1036 : | int b_uv_dx, b_uv_dy; | ||
1037 : | uint8_t *pY_Cur, *pU_Cur, *pV_Cur; | ||
1038 : | edgomez | 1382 | const uint32_t cbp = pMB->cbp; |
1039 : | edgomez | 851 | |
1040 : | pY_Cur = dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); | ||
1041 : | pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); | ||
1042 : | pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); | ||
1043 : | |||
1044 : | edgomez | 1382 | if (!direct) { |
1045 : | edgomez | 851 | uv_dx = pMB->mvs[0].x; |
1046 : | uv_dy = pMB->mvs[0].y; | ||
1047 : | b_uv_dx = pMB->b_mvs[0].x; | ||
1048 : | b_uv_dy = pMB->b_mvs[0].y; | ||
1049 : | |||
1050 : | edgomez | 1382 | if (dec->quarterpel) { |
1051 : | edgomez | 851 | uv_dx /= 2; |
1052 : | uv_dy /= 2; | ||
1053 : | b_uv_dx /= 2; | ||
1054 : | b_uv_dy /= 2; | ||
1055 : | } | ||
1056 : | |||
1057 : | uv_dx = (uv_dx >> 1) + roundtab_79[uv_dx & 0x3]; | ||
1058 : | uv_dy = (uv_dy >> 1) + roundtab_79[uv_dy & 0x3]; | ||
1059 : | b_uv_dx = (b_uv_dx >> 1) + roundtab_79[b_uv_dx & 0x3]; | ||
1060 : | b_uv_dy = (b_uv_dy >> 1) + roundtab_79[b_uv_dy & 0x3]; | ||
1061 : | edgomez | 1382 | |
1062 : | edgomez | 851 | } else { |
1063 : | edgomez | 1492 | uv_dx = pMB->mvs[0].x + pMB->mvs[1].x + pMB->mvs[2].x + pMB->mvs[3].x; |
1064 : | uv_dy = pMB->mvs[0].y + pMB->mvs[1].y + pMB->mvs[2].y + pMB->mvs[3].y; | ||
1065 : | b_uv_dx = pMB->b_mvs[0].x + pMB->b_mvs[1].x + pMB->b_mvs[2].x + pMB->b_mvs[3].x; | ||
1066 : | b_uv_dy = pMB->b_mvs[0].y + pMB->b_mvs[1].y + pMB->b_mvs[2].y + pMB->b_mvs[3].y; | ||
1067 : | |||
1068 : | if (dec->quarterpel) { | ||
1069 : | uv_dx /= 2; | ||
1070 : | uv_dy /= 2; | ||
1071 : | b_uv_dx /= 2; | ||
1072 : | b_uv_dy /= 2; | ||
1073 : | edgomez | 1382 | } |
1074 : | edgomez | 851 | |
1075 : | edgomez | 1382 | uv_dx = (uv_dx >> 3) + roundtab_76[uv_dx & 0xf]; |
1076 : | uv_dy = (uv_dy >> 3) + roundtab_76[uv_dy & 0xf]; | ||
1077 : | b_uv_dx = (b_uv_dx >> 3) + roundtab_76[b_uv_dx & 0xf]; | ||
1078 : | b_uv_dy = (b_uv_dy >> 3) + roundtab_76[b_uv_dy & 0xf]; | ||
1079 : | edgomez | 851 | } |
1080 : | |||
1081 : | start_timer(); | ||
1082 : | if(dec->quarterpel) { | ||
1083 : | edgomez | 1382 | if(!direct) { |
1084 : | edgomez | 851 | interpolate16x16_quarterpel(dec->cur.y, forward.y, dec->qtmp.y, dec->qtmp.y + 64, |
1085 : | edgomez | 1382 | dec->qtmp.y + 128, 16*x_pos, 16*y_pos, |
1086 : | pMB->mvs[0].x, pMB->mvs[0].y, stride, 0); | ||
1087 : | } else { | ||
1088 : | edgomez | 851 | interpolate8x8_quarterpel(dec->cur.y, forward.y, dec->qtmp.y, dec->qtmp.y + 64, |
1089 : | edgomez | 1382 | dec->qtmp.y + 128, 16*x_pos, 16*y_pos, |
1090 : | pMB->mvs[0].x, pMB->mvs[0].y, stride, 0); | ||
1091 : | edgomez | 851 | interpolate8x8_quarterpel(dec->cur.y, forward.y, dec->qtmp.y, dec->qtmp.y + 64, |
1092 : | edgomez | 1382 | dec->qtmp.y + 128, 16*x_pos + 8, 16*y_pos, |
1093 : | pMB->mvs[1].x, pMB->mvs[1].y, stride, 0); | ||
1094 : | edgomez | 851 | interpolate8x8_quarterpel(dec->cur.y, forward.y, dec->qtmp.y, dec->qtmp.y + 64, |
1095 : | edgomez | 1382 | dec->qtmp.y + 128, 16*x_pos, 16*y_pos + 8, |
1096 : | pMB->mvs[2].x, pMB->mvs[2].y, stride, 0); | ||
1097 : | edgomez | 851 | interpolate8x8_quarterpel(dec->cur.y, forward.y, dec->qtmp.y, dec->qtmp.y + 64, |
1098 : | edgomez | 1382 | dec->qtmp.y + 128, 16*x_pos + 8, 16*y_pos + 8, |
1099 : | pMB->mvs[3].x, pMB->mvs[3].y, stride, 0); | ||
1100 : | edgomez | 851 | } |
1101 : | edgomez | 1382 | } else { |
1102 : | edgomez | 851 | interpolate8x8_switch(dec->cur.y, forward.y, 16 * x_pos, 16 * y_pos, |
1103 : | edgomez | 1382 | pMB->mvs[0].x, pMB->mvs[0].y, stride, 0); |
1104 : | edgomez | 851 | interpolate8x8_switch(dec->cur.y, forward.y, 16 * x_pos + 8, 16 * y_pos, |
1105 : | edgomez | 1382 | pMB->mvs[1].x, pMB->mvs[1].y, stride, 0); |
1106 : | edgomez | 851 | interpolate8x8_switch(dec->cur.y, forward.y, 16 * x_pos, 16 * y_pos + 8, |
1107 : | edgomez | 1382 | pMB->mvs[2].x, pMB->mvs[2].y, stride, 0); |
1108 : | interpolate8x8_switch(dec->cur.y, forward.y, 16 * x_pos + 8, 16 * y_pos + 8, | ||
1109 : | pMB->mvs[3].x, pMB->mvs[3].y, stride, 0); | ||
1110 : | edgomez | 851 | } |
1111 : | |||
1112 : | interpolate8x8_switch(dec->cur.u, forward.u, 8 * x_pos, 8 * y_pos, uv_dx, | ||
1113 : | edgomez | 1382 | uv_dy, stride2, 0); |
1114 : | edgomez | 851 | interpolate8x8_switch(dec->cur.v, forward.v, 8 * x_pos, 8 * y_pos, uv_dx, |
1115 : | edgomez | 1382 | uv_dy, stride2, 0); |
1116 : | edgomez | 851 | |
1117 : | |||
1118 : | if(dec->quarterpel) { | ||
1119 : | edgomez | 1382 | if(!direct) { |
1120 : | edgomez | 851 | interpolate16x16_quarterpel(dec->tmp.y, backward.y, dec->qtmp.y, dec->qtmp.y + 64, |
1121 : | edgomez | 1382 | dec->qtmp.y + 128, 16*x_pos, 16*y_pos, |
1122 : | pMB->b_mvs[0].x, pMB->b_mvs[0].y, stride, 0); | ||
1123 : | } else { | ||
1124 : | edgomez | 851 | interpolate8x8_quarterpel(dec->tmp.y, backward.y, dec->qtmp.y, dec->qtmp.y + 64, |
1125 : | edgomez | 1382 | dec->qtmp.y + 128, 16*x_pos, 16*y_pos, |
1126 : | pMB->b_mvs[0].x, pMB->b_mvs[0].y, stride, 0); | ||
1127 : | edgomez | 851 | interpolate8x8_quarterpel(dec->tmp.y, backward.y, dec->qtmp.y, dec->qtmp.y + 64, |
1128 : | edgomez | 1382 | dec->qtmp.y + 128, 16*x_pos + 8, 16*y_pos, |
1129 : | pMB->b_mvs[1].x, pMB->b_mvs[1].y, stride, 0); | ||
1130 : | edgomez | 851 | interpolate8x8_quarterpel(dec->tmp.y, backward.y, dec->qtmp.y, dec->qtmp.y + 64, |
1131 : | edgomez | 1382 | dec->qtmp.y + 128, 16*x_pos, 16*y_pos + 8, |
1132 : | pMB->b_mvs[2].x, pMB->b_mvs[2].y, stride, 0); | ||
1133 : | edgomez | 851 | interpolate8x8_quarterpel(dec->tmp.y, backward.y, dec->qtmp.y, dec->qtmp.y + 64, |
1134 : | edgomez | 1382 | dec->qtmp.y + 128, 16*x_pos + 8, 16*y_pos + 8, |
1135 : | pMB->b_mvs[3].x, pMB->b_mvs[3].y, stride, 0); | ||
1136 : | edgomez | 851 | } |
1137 : | edgomez | 1382 | } else { |
1138 : | edgomez | 851 | interpolate8x8_switch(dec->tmp.y, backward.y, 16 * x_pos, 16 * y_pos, |
1139 : | edgomez | 1382 | pMB->b_mvs[0].x, pMB->b_mvs[0].y, stride, 0); |
1140 : | edgomez | 851 | interpolate8x8_switch(dec->tmp.y, backward.y, 16 * x_pos + 8, |
1141 : | edgomez | 1382 | 16 * y_pos, pMB->b_mvs[1].x, pMB->b_mvs[1].y, stride, 0); |
1142 : | edgomez | 851 | interpolate8x8_switch(dec->tmp.y, backward.y, 16 * x_pos, |
1143 : | edgomez | 1382 | 16 * y_pos + 8, pMB->b_mvs[2].x, pMB->b_mvs[2].y, stride, 0); |
1144 : | edgomez | 851 | interpolate8x8_switch(dec->tmp.y, backward.y, 16 * x_pos + 8, |
1145 : | edgomez | 1382 | 16 * y_pos + 8, pMB->b_mvs[3].x, pMB->b_mvs[3].y, stride, 0); |
1146 : | edgomez | 851 | } |
1147 : | |||
1148 : | interpolate8x8_switch(dec->tmp.u, backward.u, 8 * x_pos, 8 * y_pos, | ||
1149 : | edgomez | 1382 | b_uv_dx, b_uv_dy, stride2, 0); |
1150 : | edgomez | 851 | interpolate8x8_switch(dec->tmp.v, backward.v, 8 * x_pos, 8 * y_pos, |
1151 : | edgomez | 1382 | b_uv_dx, b_uv_dy, stride2, 0); |
1152 : | edgomez | 851 | |
1153 : | interpolate8x8_avg2(dec->cur.y + (16 * y_pos * stride) + 16 * x_pos, | ||
1154 : | dec->cur.y + (16 * y_pos * stride) + 16 * x_pos, | ||
1155 : | dec->tmp.y + (16 * y_pos * stride) + 16 * x_pos, | ||
1156 : | edgomez | 1519 | stride, 0, 8); |
1157 : | edgomez | 851 | |
1158 : | interpolate8x8_avg2(dec->cur.y + (16 * y_pos * stride) + 16 * x_pos + 8, | ||
1159 : | dec->cur.y + (16 * y_pos * stride) + 16 * x_pos + 8, | ||
1160 : | dec->tmp.y + (16 * y_pos * stride) + 16 * x_pos + 8, | ||
1161 : | edgomez | 1519 | stride, 0, 8); |
1162 : | edgomez | 851 | |
1163 : | interpolate8x8_avg2(dec->cur.y + ((16 * y_pos + 8) * stride) + 16 * x_pos, | ||
1164 : | dec->cur.y + ((16 * y_pos + 8) * stride) + 16 * x_pos, | ||
1165 : | dec->tmp.y + ((16 * y_pos + 8) * stride) + 16 * x_pos, | ||
1166 : | edgomez | 1519 | stride, 0, 8); |
1167 : | edgomez | 851 | |
1168 : | interpolate8x8_avg2(dec->cur.y + ((16 * y_pos + 8) * stride) + 16 * x_pos + 8, | ||
1169 : | dec->cur.y + ((16 * y_pos + 8) * stride) + 16 * x_pos + 8, | ||
1170 : | dec->tmp.y + ((16 * y_pos + 8) * stride) + 16 * x_pos + 8, | ||
1171 : | edgomez | 1519 | stride, 0, 8); |
1172 : | edgomez | 851 | |
1173 : | interpolate8x8_avg2(dec->cur.u + (8 * y_pos * stride2) + 8 * x_pos, | ||
1174 : | dec->cur.u + (8 * y_pos * stride2) + 8 * x_pos, | ||
1175 : | dec->tmp.u + (8 * y_pos * stride2) + 8 * x_pos, | ||
1176 : | edgomez | 1519 | stride2, 0, 8); |
1177 : | edgomez | 851 | |
1178 : | interpolate8x8_avg2(dec->cur.v + (8 * y_pos * stride2) + 8 * x_pos, | ||
1179 : | dec->cur.v + (8 * y_pos * stride2) + 8 * x_pos, | ||
1180 : | dec->tmp.v + (8 * y_pos * stride2) + 8 * x_pos, | ||
1181 : | edgomez | 1519 | stride2, 0, 8); |
1182 : | edgomez | 851 | |
1183 : | stop_comp_timer(); | ||
1184 : | |||
1185 : | edgomez | 1382 | if (cbp) |
1186 : | decoder_mb_decode(dec, cbp, bs, pY_Cur, pU_Cur, pV_Cur, 0, pMB); | ||
1187 : | edgomez | 851 | } |
1188 : | |||
1189 : | edgomez | 866 | /* for decode B-frame dbquant */ |
1190 : | edgomez | 1382 | static __inline int32_t |
1191 : | edgomez | 851 | get_dbquant(Bitstream * bs) |
1192 : | { | ||
1193 : | edgomez | 1382 | if (!BitstreamGetBit(bs)) /* '0' */ |
1194 : | edgomez | 851 | return (0); |
1195 : | edgomez | 1382 | else if (!BitstreamGetBit(bs)) /* '10' */ |
1196 : | edgomez | 851 | return (-2); |
1197 : | edgomez | 1382 | else /* '11' */ |
1198 : | edgomez | 866 | return (2); |
1199 : | edgomez | 851 | } |
1200 : | |||
1201 : | edgomez | 866 | /* |
1202 : | edgomez | 1382 | * decode B-frame mb_type |
1203 : | * bit ret_value | ||
1204 : | * 1 0 | ||
1205 : | * 01 1 | ||
1206 : | * 001 2 | ||
1207 : | * 0001 3 | ||
1208 : | edgomez | 866 | */ |
1209 : | edgomez | 1382 | static int32_t __inline |
1210 : | edgomez | 851 | get_mbtype(Bitstream * bs) |
1211 : | { | ||
1212 : | int32_t mb_type; | ||
1213 : | |||
1214 : | edgomez | 1382 | for (mb_type = 0; mb_type <= 3; mb_type++) |
1215 : | edgomez | 851 | if (BitstreamGetBit(bs)) |
1216 : | edgomez | 1382 | return (mb_type); |
1217 : | edgomez | 851 | |
1218 : | edgomez | 1382 | return -1; |
1219 : | edgomez | 851 | } |
1220 : | |||
1221 : | edgomez | 1382 | static void |
1222 : | edgomez | 851 | decoder_bframe(DECODER * dec, |
1223 : | edgomez | 1382 | Bitstream * bs, |
1224 : | int quant, | ||
1225 : | int fcode_forward, | ||
1226 : | int fcode_backward) | ||
1227 : | edgomez | 851 | { |
1228 : | uint32_t x, y; | ||
1229 : | VECTOR mv; | ||
1230 : | const VECTOR zeromv = {0,0}; | ||
1231 : | edgomez | 1382 | int i; |
1232 : | edgomez | 851 | |
1233 : | edgomez | 1451 | if (!dec->is_edged[0]) { |
1234 : | start_timer(); | ||
1235 : | image_setedges(&dec->refn[0], dec->edged_width, dec->edged_height, | ||
1236 : | dec->width, dec->height, dec->bs_version); | ||
1237 : | dec->is_edged[0] = 1; | ||
1238 : | stop_edges_timer(); | ||
1239 : | } | ||
1240 : | edgomez | 851 | |
1241 : | edgomez | 1451 | if (!dec->is_edged[1]) { |
1242 : | start_timer(); | ||
1243 : | image_setedges(&dec->refn[1], dec->edged_width, dec->edged_height, | ||
1244 : | dec->width, dec->height, dec->bs_version); | ||
1245 : | dec->is_edged[1] = 1; | ||
1246 : | stop_edges_timer(); | ||
1247 : | } | ||
1248 : | |||
1249 : | edgomez | 851 | for (y = 0; y < dec->mb_height; y++) { |
1250 : | edgomez | 866 | /* Initialize Pred Motion Vector */ |
1251 : | edgomez | 851 | dec->p_fmv = dec->p_bmv = zeromv; |
1252 : | for (x = 0; x < dec->mb_width; x++) { | ||
1253 : | MACROBLOCK *mb = &dec->mbs[y * dec->mb_width + x]; | ||
1254 : | MACROBLOCK *last_mb = &dec->last_mbs[y * dec->mb_width + x]; | ||
1255 : | edgomez | 1382 | const int fcode_max = (fcode_forward>fcode_backward) ? fcode_forward : fcode_backward; |
1256 : | uint32_t intra_dc_threshold; /* fake variable */ | ||
1257 : | edgomez | 851 | |
1258 : | edgomez | 1382 | if (check_resync_marker(bs, fcode_max - 1)) { |
1259 : | int bound = read_video_packet_header(bs, dec, fcode_max - 1, &quant, | ||
1260 : | &fcode_forward, &fcode_backward, &intra_dc_threshold); | ||
1261 : | x = bound % dec->mb_width; | ||
1262 : | y = bound / dec->mb_width; | ||
1263 : | /* reset predicted macroblocks */ | ||
1264 : | dec->p_fmv = dec->p_bmv = zeromv; | ||
1265 : | } | ||
1266 : | |||
1267 : | edgomez | 851 | mv = |
1268 : | mb->b_mvs[0] = mb->b_mvs[1] = mb->b_mvs[2] = mb->b_mvs[3] = | ||
1269 : | mb->mvs[0] = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = zeromv; | ||
1270 : | edgomez | 1382 | mb->quant = quant; |
1271 : | edgomez | 851 | |
1272 : | edgomez | 866 | /* |
1273 : | edgomez | 1382 | * skip if the co-located P_VOP macroblock is not coded |
1274 : | edgomez | 866 | * if not codec in co-located S_VOP macroblock is _not_ |
1275 : | * automatically skipped | ||
1276 : | */ | ||
1277 : | edgomez | 851 | |
1278 : | if (last_mb->mode == MODE_NOT_CODED) { | ||
1279 : | mb->cbp = 0; | ||
1280 : | edgomez | 1382 | mb->mode = MODE_FORWARD; |
1281 : | decoder_mbinter(dec, mb, x, y, mb->cbp, bs, 0, 0, 1); | ||
1282 : | edgomez | 851 | continue; |
1283 : | } | ||
1284 : | |||
1285 : | edgomez | 866 | if (!BitstreamGetBit(bs)) { /* modb=='0' */ |
1286 : | edgomez | 851 | const uint8_t modb2 = BitstreamGetBit(bs); |
1287 : | |||
1288 : | edgomez | 1382 | mb->mode = get_mbtype(bs); |
1289 : | edgomez | 851 | |
1290 : | edgomez | 1382 | if (!modb2) /* modb=='00' */ |
1291 : | edgomez | 851 | mb->cbp = BitstreamGetBits(bs, 6); |
1292 : | edgomez | 1382 | else |
1293 : | edgomez | 851 | mb->cbp = 0; |
1294 : | |||
1295 : | edgomez | 1382 | if (mb->mode && mb->cbp) { |
1296 : | quant += get_dbquant(bs); | ||
1297 : | if (quant > 31) | ||
1298 : | edgomez | 851 | quant = 31; |
1299 : | edgomez | 1382 | else if (quant < 1) |
1300 : | edgomez | 851 | quant = 1; |
1301 : | edgomez | 1382 | } |
1302 : | mb->quant = quant; | ||
1303 : | |||
1304 : | if (dec->interlacing) { | ||
1305 : | if (mb->cbp) { | ||
1306 : | mb->field_dct = BitstreamGetBit(bs); | ||
1307 : | DPRINTF(XVID_DEBUG_MB,"decp: field_dct: %i\n", mb->field_dct); | ||
1308 : | edgomez | 851 | } |
1309 : | edgomez | 1382 | |
1310 : | if (mb->mode) { | ||
1311 : | mb->field_pred = BitstreamGetBit(bs); | ||
1312 : | DPRINTF(XVID_DEBUG_MB, "decp: field_pred: %i\n", mb->field_pred); | ||
1313 : | |||
1314 : | if (mb->field_pred) { | ||
1315 : | mb->field_for_top = BitstreamGetBit(bs); | ||
1316 : | DPRINTF(XVID_DEBUG_MB,"decp: field_for_top: %i\n", mb->field_for_top); | ||
1317 : | mb->field_for_bot = BitstreamGetBit(bs); | ||
1318 : | DPRINTF(XVID_DEBUG_MB,"decp: field_for_bot: %i\n", mb->field_for_bot); | ||
1319 : | } | ||
1320 : | } | ||
1321 : | edgomez | 851 | } |
1322 : | edgomez | 1382 | |
1323 : | edgomez | 851 | } else { |
1324 : | edgomez | 1382 | mb->mode = MODE_DIRECT_NONE_MV; |
1325 : | edgomez | 851 | mb->cbp = 0; |
1326 : | } | ||
1327 : | |||
1328 : | edgomez | 1382 | switch (mb->mode) { |
1329 : | edgomez | 851 | case MODE_DIRECT: |
1330 : | edgomez | 1382 | get_b_motion_vector(bs, &mv, 1, zeromv, dec, x, y); |
1331 : | edgomez | 851 | |
1332 : | case MODE_DIRECT_NONE_MV: | ||
1333 : | edgomez | 1382 | for (i = 0; i < 4; i++) { |
1334 : | edgomez | 1466 | mb->mvs[i].x = last_mb->mvs[i].x*dec->time_bp/dec->time_pp + mv.x; |
1335 : | mb->mvs[i].y = last_mb->mvs[i].y*dec->time_bp/dec->time_pp + mv.y; | ||
1336 : | |||
1337 : | mb->b_mvs[i].x = (mv.x) | ||
1338 : | ? mb->mvs[i].x - last_mb->mvs[i].x | ||
1339 : | : last_mb->mvs[i].x*(dec->time_bp - dec->time_pp)/dec->time_pp; | ||
1340 : | mb->b_mvs[i].y = (mv.y) | ||
1341 : | ? mb->mvs[i].y - last_mb->mvs[i].y | ||
1342 : | : last_mb->mvs[i].y*(dec->time_bp - dec->time_pp)/dec->time_pp; | ||
1343 : | edgomez | 851 | } |
1344 : | edgomez | 1382 | |
1345 : | edgomez | 851 | decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], |
1346 : | edgomez | 1382 | mb, x, y, bs, 1); |
1347 : | edgomez | 851 | break; |
1348 : | |||
1349 : | case MODE_INTERPOLATE: | ||
1350 : | edgomez | 1382 | get_b_motion_vector(bs, &mb->mvs[0], fcode_forward, dec->p_fmv, dec, x, y); |
1351 : | edgomez | 851 | dec->p_fmv = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = mb->mvs[0]; |
1352 : | |||
1353 : | edgomez | 1382 | get_b_motion_vector(bs, &mb->b_mvs[0], fcode_backward, dec->p_bmv, dec, x, y); |
1354 : | dec->p_bmv = mb->b_mvs[1] = mb->b_mvs[2] = mb->b_mvs[3] = mb->b_mvs[0]; | ||
1355 : | edgomez | 851 | |
1356 : | decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], | ||
1357 : | edgomez | 1382 | mb, x, y, bs, 0); |
1358 : | edgomez | 851 | break; |
1359 : | |||
1360 : | case MODE_BACKWARD: | ||
1361 : | edgomez | 1382 | get_b_motion_vector(bs, &mb->mvs[0], fcode_backward, dec->p_bmv, dec, x, y); |
1362 : | edgomez | 851 | dec->p_bmv = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = mb->mvs[0]; |
1363 : | |||
1364 : | edgomez | 1382 | decoder_mbinter(dec, mb, x, y, mb->cbp, bs, 0, 0, 0); |
1365 : | edgomez | 851 | break; |
1366 : | |||
1367 : | case MODE_FORWARD: | ||
1368 : | edgomez | 1382 | get_b_motion_vector(bs, &mb->mvs[0], fcode_forward, dec->p_fmv, dec, x, y); |
1369 : | edgomez | 851 | dec->p_fmv = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = mb->mvs[0]; |
1370 : | |||
1371 : | edgomez | 1382 | decoder_mbinter(dec, mb, x, y, mb->cbp, bs, 0, 0, 1); |
1372 : | edgomez | 851 | break; |
1373 : | |||
1374 : | default: | ||
1375 : | edgomez | 1382 | DPRINTF(XVID_DEBUG_ERROR,"Not supported B-frame mb_type = %i\n", mb->mode); |
1376 : | edgomez | 851 | } |
1377 : | edgomez | 866 | } /* End of for */ |
1378 : | edgomez | 851 | } |
1379 : | } | ||
1380 : | |||
1381 : | /* perform post processing if necessary, and output the image */ | ||
1382 : | edgomez | 1382 | void decoder_output(DECODER * dec, IMAGE * img, MACROBLOCK * mbs, |
1383 : | xvid_dec_frame_t * frame, xvid_dec_stats_t * stats, | ||
1384 : | int coding_type, int quant) | ||
1385 : | edgomez | 851 | { |
1386 : | suxen_drol | 1431 | const int brightness = XVID_VERSION_MINOR(frame->version) >= 1 ? frame->brightness : 0; |
1387 : | |||
1388 : | edgomez | 1382 | if (dec->cartoon_mode) |
1389 : | frame->general &= ~XVID_FILMEFFECT; | ||
1390 : | edgomez | 851 | |
1391 : | suxen_drol | 1431 | if ((frame->general & (XVID_DEBLOCKY|XVID_DEBLOCKUV|XVID_FILMEFFECT) || brightness!=0) |
1392 : | suxen_drol | 1397 | && mbs != NULL) /* post process */ |
1393 : | edgomez | 851 | { |
1394 : | /* note: image is stored to tmp */ | ||
1395 : | image_copy(&dec->tmp, img, dec->edged_width, dec->height); | ||
1396 : | edgomez | 1382 | image_postproc(&dec->postproc, &dec->tmp, dec->edged_width, |
1397 : | mbs, dec->mb_width, dec->mb_height, dec->mb_width, | ||
1398 : | suxen_drol | 1431 | frame->general, brightness, dec->frames, (coding_type == B_VOP)); |
1399 : | edgomez | 851 | img = &dec->tmp; |
1400 : | } | ||
1401 : | |||
1402 : | image_output(img, dec->width, dec->height, | ||
1403 : | edgomez | 1382 | dec->edged_width, (uint8_t**)frame->output.plane, frame->output.stride, |
1404 : | frame->output.csp, dec->interlacing); | ||
1405 : | |||
1406 : | if (stats) { | ||
1407 : | stats->type = coding2type(coding_type); | ||
1408 : | stats->data.vop.time_base = (int)dec->time_base; | ||
1409 : | stats->data.vop.time_increment = 0; /* XXX: todo */ | ||
1410 : | stats->data.vop.qscale_stride = dec->mb_width; | ||
1411 : | stats->data.vop.qscale = dec->qscale; | ||
1412 : | if (stats->data.vop.qscale != NULL && mbs != NULL) { | ||
1413 : | int i; | ||
1414 : | for (i = 0; i < dec->mb_width*dec->mb_height; i++) | ||
1415 : | stats->data.vop.qscale[i] = mbs[i].quant; | ||
1416 : | } else | ||
1417 : | stats->data.vop.qscale = NULL; | ||
1418 : | } | ||
1419 : | edgomez | 851 | } |
1420 : | |||
1421 : | |||
1422 : | edgomez | 195 | int |
1423 : | decoder_decode(DECODER * dec, | ||
1424 : | edgomez | 1382 | xvid_dec_frame_t * frame, xvid_dec_stats_t * stats) |
1425 : | Isibaar | 3 | { |
1426 : | edgomez | 78 | |
1427 : | Isibaar | 3 | Bitstream bs; |
1428 : | uint32_t rounding; | ||
1429 : | edgomez | 851 | uint32_t reduced_resolution; |
1430 : | edgomez | 1382 | uint32_t quant = 2; |
1431 : | chenm001 | 156 | uint32_t fcode_forward; |
1432 : | uint32_t fcode_backward; | ||
1433 : | Isibaar | 3 | uint32_t intra_dc_threshold; |
1434 : | edgomez | 851 | WARPPOINTS gmc_warp; |
1435 : | edgomez | 1382 | int coding_type; |
1436 : | int success, output, seen_something; | ||
1437 : | Isibaar | 3 | |
1438 : | edgomez | 1382 | if (XVID_VERSION_MAJOR(frame->version) != 1 || (stats && XVID_VERSION_MAJOR(stats->version) != 1)) /* v1.x.x */ |
1439 : | return XVID_ERR_VERSION; | ||
1440 : | |||
1441 : | Isibaar | 3 | start_global_timer(); |
1442 : | edgomez | 195 | |
1443 : | edgomez | 1382 | dec->low_delay_default = (frame->general & XVID_LOWDELAY); |
1444 : | if ((frame->general & XVID_DISCONTINUITY)) | ||
1445 : | edgomez | 851 | dec->frames = 0; |
1446 : | edgomez | 1382 | dec->out_frm = (frame->output.csp == XVID_CSP_SLICE) ? &frame->output : NULL; |
1447 : | edgomez | 851 | |
1448 : | edgomez | 1382 | if (frame->length < 0) { /* decoder flush */ |
1449 : | int ret; | ||
1450 : | /* if not decoding "low_delay/packed", and this isn't low_delay and | ||
1451 : | we have a reference frame, then outout the reference frame */ | ||
1452 : | if (!(dec->low_delay_default && dec->packed_mode) && !dec->low_delay && dec->frames>0) { | ||
1453 : | decoder_output(dec, &dec->refn[0], dec->last_mbs, frame, stats, dec->last_coding_type, quant); | ||
1454 : | dec->frames = 0; | ||
1455 : | ret = 0; | ||
1456 : | } else { | ||
1457 : | if (stats) stats->type = XVID_TYPE_NOTHING; | ||
1458 : | ret = XVID_ERR_END; | ||
1459 : | edgomez | 851 | } |
1460 : | |||
1461 : | emms(); | ||
1462 : | stop_global_timer(); | ||
1463 : | edgomez | 1382 | return ret; |
1464 : | edgomez | 851 | } |
1465 : | |||
1466 : | Isibaar | 3 | BitstreamInit(&bs, frame->bitstream, frame->length); |
1467 : | |||
1468 : | edgomez | 866 | /* XXX: 0x7f is only valid whilst decoding vfw xvid/divx5 avi's */ |
1469 : | edgomez | 851 | if(dec->low_delay_default && frame->length == 1 && BitstreamShowBits(&bs, 8) == 0x7f) |
1470 : | { | ||
1471 : | image_output(&dec->refn[0], dec->width, dec->height, dec->edged_width, | ||
1472 : | edgomez | 1382 | (uint8_t**)frame->output.plane, frame->output.stride, frame->output.csp, dec->interlacing); |
1473 : | if (stats) stats->type = XVID_TYPE_NOTHING; | ||
1474 : | edgomez | 851 | emms(); |
1475 : | edgomez | 1382 | return 1; /* one byte consumed */ |
1476 : | edgomez | 851 | } |
1477 : | Isibaar | 179 | |
1478 : | edgomez | 1382 | success = 0; |
1479 : | output = 0; | ||
1480 : | seen_something = 0; | ||
1481 : | |||
1482 : | edgomez | 851 | repeat: |
1483 : | edgomez | 195 | |
1484 : | edgomez | 1382 | coding_type = BitstreamReadHeaders(&bs, dec, &rounding, &reduced_resolution, |
1485 : | edgomez | 851 | &quant, &fcode_forward, &fcode_backward, &intra_dc_threshold, &gmc_warp); |
1486 : | Isibaar | 3 | |
1487 : | edgomez | 1382 | DPRINTF(XVID_DEBUG_HEADER, "coding_type=%i, packed=%i, time=%lli, time_pp=%i, time_bp=%i\n", |
1488 : | coding_type, dec->packed_mode, dec->time, dec->time_pp, dec->time_bp); | ||
1489 : | Isibaar | 3 | |
1490 : | edgomez | 1382 | if (coding_type == -1) { /* nothing */ |
1491 : | edgomez | 851 | if (success) goto done; |
1492 : | edgomez | 1382 | if (stats) stats->type = XVID_TYPE_NOTHING; |
1493 : | edgomez | 851 | emms(); |
1494 : | edgomez | 1382 | return BitstreamPos(&bs)/8; |
1495 : | Isibaar | 3 | } |
1496 : | |||
1497 : | edgomez | 1382 | if (coding_type == -2 || coding_type == -3) { /* vol and/or resize */ |
1498 : | |||
1499 : | if (coding_type == -3) | ||
1500 : | edgomez | 851 | decoder_resize(dec); |
1501 : | edgomez | 1382 | |
1502 : | if (stats) { | ||
1503 : | stats->type = XVID_TYPE_VOL; | ||
1504 : | edgomez | 851 | stats->data.vol.general = 0; |
1505 : | edgomez | 1382 | /*XXX: if (dec->interlacing) |
1506 : | stats->data.vol.general |= ++INTERLACING; */ | ||
1507 : | edgomez | 851 | stats->data.vol.width = dec->width; |
1508 : | stats->data.vol.height = dec->height; | ||
1509 : | edgomez | 1382 | stats->data.vol.par = dec->aspect_ratio; |
1510 : | edgomez | 851 | stats->data.vol.par_width = dec->par_width; |
1511 : | stats->data.vol.par_height = dec->par_height; | ||
1512 : | emms(); | ||
1513 : | edgomez | 1382 | return BitstreamPos(&bs)/8; /* number of bytes consumed */ |
1514 : | edgomez | 851 | } |
1515 : | goto repeat; | ||
1516 : | edgomez | 1382 | } |
1517 : | Isibaar | 3 | |
1518 : | syskin | 1439 | if(dec->frames == 0 && coding_type != I_VOP) { |
1519 : | /* 1st frame is not an i-vop */ | ||
1520 : | goto repeat; | ||
1521 : | } | ||
1522 : | |||
1523 : | edgomez | 866 | dec->p_bmv.x = dec->p_bmv.y = dec->p_fmv.y = dec->p_fmv.y = 0; /* init pred vector to 0 */ |
1524 : | chenm001 | 290 | |
1525 : | edgomez | 851 | /* packed_mode: special-N_VOP treament */ |
1526 : | edgomez | 1382 | if (dec->packed_mode && coding_type == N_VOP) { |
1527 : | if (dec->low_delay_default && dec->frames > 0) { | ||
1528 : | decoder_output(dec, &dec->refn[0], dec->last_mbs, frame, stats, dec->last_coding_type, quant); | ||
1529 : | edgomez | 851 | output = 1; |
1530 : | } | ||
1531 : | /* ignore otherwise */ | ||
1532 : | edgomez | 1382 | } else if (coding_type != B_VOP) { |
1533 : | switch(coding_type) { | ||
1534 : | edgomez | 851 | case I_VOP : |
1535 : | decoder_iframe(dec, &bs, reduced_resolution, quant, intra_dc_threshold); | ||
1536 : | break; | ||
1537 : | case P_VOP : | ||
1538 : | edgomez | 1382 | decoder_pframe(dec, &bs, rounding, reduced_resolution, quant, |
1539 : | edgomez | 851 | fcode_forward, intra_dc_threshold, NULL); |
1540 : | break; | ||
1541 : | case S_VOP : | ||
1542 : | edgomez | 1382 | decoder_pframe(dec, &bs, rounding, reduced_resolution, quant, |
1543 : | edgomez | 851 | fcode_forward, intra_dc_threshold, &gmc_warp); |
1544 : | break; | ||
1545 : | case N_VOP : | ||
1546 : | edgomez | 1382 | /* XXX: not_coded vops are not used for forward prediction */ |
1547 : | /* we should not swap(last_mbs,mbs) */ | ||
1548 : | edgomez | 851 | image_copy(&dec->cur, &dec->refn[0], dec->edged_width, dec->height); |
1549 : | edgomez | 1382 | SWAP(MACROBLOCK *, dec->mbs, dec->last_mbs); /* it will be swapped back */ |
1550 : | edgomez | 851 | break; |
1551 : | } | ||
1552 : | |||
1553 : | edgomez | 1382 | if (reduced_resolution) { |
1554 : | edgomez | 851 | image_deblock_rrv(&dec->cur, dec->edged_width, dec->mbs, |
1555 : | (dec->width + 31) / 32, (dec->height + 31) / 32, dec->mb_width, | ||
1556 : | edgomez | 1382 | 16, 0); |
1557 : | edgomez | 851 | } |
1558 : | |||
1559 : | /* note: for packed_mode, output is performed when the special-N_VOP is decoded */ | ||
1560 : | edgomez | 1382 | if (!(dec->low_delay_default && dec->packed_mode)) { |
1561 : | if (dec->low_delay) { | ||
1562 : | decoder_output(dec, &dec->cur, dec->mbs, frame, stats, coding_type, quant); | ||
1563 : | edgomez | 851 | output = 1; |
1564 : | edgomez | 1382 | } else if (dec->frames > 0) { /* is the reference frame valid? */ |
1565 : | edgomez | 851 | /* output the reference frame */ |
1566 : | edgomez | 1382 | decoder_output(dec, &dec->refn[0], dec->last_mbs, frame, stats, dec->last_coding_type, quant); |
1567 : | edgomez | 851 | output = 1; |
1568 : | } | ||
1569 : | } | ||
1570 : | |||
1571 : | chenm001 | 156 | image_swap(&dec->refn[0], &dec->refn[1]); |
1572 : | edgomez | 1451 | dec->is_edged[1] = dec->is_edged[0]; |
1573 : | chenm001 | 156 | image_swap(&dec->cur, &dec->refn[0]); |
1574 : | edgomez | 1451 | dec->is_edged[0] = 0; |
1575 : | edgomez | 1382 | SWAP(MACROBLOCK *, dec->mbs, dec->last_mbs); |
1576 : | edgomez | 851 | dec->last_reduced_resolution = reduced_resolution; |
1577 : | edgomez | 1382 | dec->last_coding_type = coding_type; |
1578 : | chenm001 | 306 | |
1579 : | edgomez | 851 | dec->frames++; |
1580 : | seen_something = 1; | ||
1581 : | |||
1582 : | edgomez | 1382 | } else { /* B_VOP */ |
1583 : | edgomez | 851 | |
1584 : | edgomez | 1382 | if (dec->low_delay) { |
1585 : | DPRINTF(XVID_DEBUG_ERROR, "warning: bvop found in low_delay==1 stream\n"); | ||
1586 : | syskin | 1474 | dec->low_delay = 0; |
1587 : | edgomez | 851 | } |
1588 : | |||
1589 : | edgomez | 1382 | if (dec->frames < 2) { |
1590 : | edgomez | 851 | /* attemping to decode a bvop without atleast 2 reference frames */ |
1591 : | image_printf(&dec->cur, dec->edged_width, dec->height, 16, 16, | ||
1592 : | "broken b-frame, mising ref frames"); | ||
1593 : | edgomez | 1382 | if (stats) stats->type = XVID_TYPE_NOTHING; |
1594 : | } else if (dec->time_pp <= dec->time_bp) { | ||
1595 : | /* this occurs when dx50_bvop_compatibility==0 sequences are | ||
1596 : | edgomez | 851 | decoded in vfw. */ |
1597 : | image_printf(&dec->cur, dec->edged_width, dec->height, 16, 16, | ||
1598 : | "broken b-frame, tpp=%i tbp=%i", dec->time_pp, dec->time_bp); | ||
1599 : | edgomez | 1382 | if (stats) stats->type = XVID_TYPE_NOTHING; |
1600 : | } else { | ||
1601 : | edgomez | 851 | decoder_bframe(dec, &bs, quant, fcode_forward, fcode_backward); |
1602 : | edgomez | 1382 | decoder_output(dec, &dec->cur, dec->mbs, frame, stats, coding_type, quant); |
1603 : | edgomez | 851 | } |
1604 : | |||
1605 : | output = 1; | ||
1606 : | dec->frames++; | ||
1607 : | chenm001 | 156 | } |
1608 : | |||
1609 : | edgomez | 1382 | #if 0 /* Avoids to read to much data because of 32bit reads in our BS functions */ |
1610 : | BitstreamByteAlign(&bs); | ||
1611 : | #endif | ||
1612 : | edgomez | 851 | |
1613 : | /* low_delay_default mode: repeat in packed_mode */ | ||
1614 : | edgomez | 1382 | if (dec->low_delay_default && dec->packed_mode && output == 0 && success == 0) { |
1615 : | edgomez | 851 | success = 1; |
1616 : | goto repeat; | ||
1617 : | } | ||
1618 : | |||
1619 : | done : | ||
1620 : | |||
1621 : | /* low_delay_default mode: if we've gotten here without outputting anything, | ||
1622 : | then output the recently decoded frame, or print an error message */ | ||
1623 : | edgomez | 1382 | if (dec->low_delay_default && output == 0) { |
1624 : | if (dec->packed_mode && seen_something) { | ||
1625 : | edgomez | 851 | /* output the recently decoded frame */ |
1626 : | edgomez | 1382 | decoder_output(dec, &dec->refn[0], dec->last_mbs, frame, stats, dec->last_coding_type, quant); |
1627 : | } else { | ||
1628 : | edgomez | 851 | image_clear(&dec->cur, dec->width, dec->height, dec->edged_width, 0, 128, 128); |
1629 : | image_printf(&dec->cur, dec->edged_width, dec->height, 16, 16, | ||
1630 : | "warning: nothing to output"); | ||
1631 : | image_printf(&dec->cur, dec->edged_width, dec->height, 16, 64, | ||
1632 : | "bframe decoder lag"); | ||
1633 : | |||
1634 : | edgomez | 1382 | decoder_output(dec, &dec->cur, NULL, frame, stats, P_VOP, quant); |
1635 : | if (stats) stats->type = XVID_TYPE_NOTHING; | ||
1636 : | edgomez | 851 | } |
1637 : | } | ||
1638 : | |||
1639 : | Isibaar | 3 | emms(); |
1640 : | stop_global_timer(); | ||
1641 : | |||
1642 : | edgomez | 1382 | return (BitstreamPos(&bs) + 7) / 8; /* number of bytes consumed */ |
1643 : | Isibaar | 3 | } |
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