1 /*
2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved.
3 *
4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree.
9 */
10
11
12 #include "vp8/common/onyxc_int.h"
13 #if CONFIG_POSTPROC
14 #include "vp8/common/postproc.h"
15 #endif
16 #include "vp8/common/onyxd.h"
17 #include "onyxd_int.h"
18 #include "vpx_mem/vpx_mem.h"
19 #include "vp8/common/alloccommon.h"
20 #include "vp8/common/loopfilter.h"
21 #include "vp8/common/swapyv12buffer.h"
22 #include "vp8/common/threading.h"
23 #include "decoderthreading.h"
24 #include <stdio.h>
25 #include <assert.h>
26
27 #include "vp8/common/quant_common.h"
28 #include "vp8/common/reconintra.h"
29 #include "./vpx_dsp_rtcd.h"
30 #include "./vpx_scale_rtcd.h"
31 #include "vpx_scale/vpx_scale.h"
32 #include "vp8/common/systemdependent.h"
33 #include "vpx_ports/vpx_once.h"
34 #include "vpx_ports/vpx_timer.h"
35 #include "detokenize.h"
36 #if CONFIG_ERROR_CONCEALMENT
37 #include "error_concealment.h"
38 #endif
39 #if ARCH_ARM
40 #include "vpx_ports/arm.h"
41 #endif
42
43 extern void vp8_init_loop_filter(VP8_COMMON *cm);
44 extern void vp8cx_init_de_quantizer(VP8D_COMP *pbi);
45 static int get_free_fb (VP8_COMMON *cm);
46 static void ref_cnt_fb (int *buf, int *idx, int new_idx);
47
initialize_dec(void)48 static void initialize_dec(void) {
49 static volatile int init_done = 0;
50
51 if (!init_done)
52 {
53 vpx_dsp_rtcd();
54 vp8_init_intra_predictors();
55 init_done = 1;
56 }
57 }
58
remove_decompressor(VP8D_COMP * pbi)59 static void remove_decompressor(VP8D_COMP *pbi)
60 {
61 #if CONFIG_ERROR_CONCEALMENT
62 vp8_de_alloc_overlap_lists(pbi);
63 #endif
64 vp8_remove_common(&pbi->common);
65 vpx_free(pbi);
66 }
67
create_decompressor(VP8D_CONFIG * oxcf)68 static struct VP8D_COMP * create_decompressor(VP8D_CONFIG *oxcf)
69 {
70 VP8D_COMP *pbi = vpx_memalign(32, sizeof(VP8D_COMP));
71
72 if (!pbi)
73 return NULL;
74
75 memset(pbi, 0, sizeof(VP8D_COMP));
76
77 if (setjmp(pbi->common.error.jmp))
78 {
79 pbi->common.error.setjmp = 0;
80 remove_decompressor(pbi);
81 return 0;
82 }
83
84 pbi->common.error.setjmp = 1;
85
86 vp8_create_common(&pbi->common);
87
88 pbi->common.current_video_frame = 0;
89 pbi->ready_for_new_data = 1;
90
91 /* vp8cx_init_de_quantizer() is first called here. Add check in frame_init_dequantizer() to avoid
92 * unnecessary calling of vp8cx_init_de_quantizer() for every frame.
93 */
94 vp8cx_init_de_quantizer(pbi);
95
96 vp8_loop_filter_init(&pbi->common);
97
98 pbi->common.error.setjmp = 0;
99
100 #if CONFIG_ERROR_CONCEALMENT
101 pbi->ec_enabled = oxcf->error_concealment;
102 pbi->overlaps = NULL;
103 #else
104 (void)oxcf;
105 pbi->ec_enabled = 0;
106 #endif
107 /* Error concealment is activated after a key frame has been
108 * decoded without errors when error concealment is enabled.
109 */
110 pbi->ec_active = 0;
111
112 pbi->decoded_key_frame = 0;
113
114 /* Independent partitions is activated when a frame updates the
115 * token probability table to have equal probabilities over the
116 * PREV_COEF context.
117 */
118 pbi->independent_partitions = 0;
119
120 vp8_setup_block_dptrs(&pbi->mb);
121
122 once(initialize_dec);
123
124 return pbi;
125 }
126
vp8dx_get_reference(VP8D_COMP * pbi,enum vpx_ref_frame_type ref_frame_flag,YV12_BUFFER_CONFIG * sd)127 vpx_codec_err_t vp8dx_get_reference(VP8D_COMP *pbi, enum vpx_ref_frame_type ref_frame_flag, YV12_BUFFER_CONFIG *sd)
128 {
129 VP8_COMMON *cm = &pbi->common;
130 int ref_fb_idx;
131
132 if (ref_frame_flag == VP8_LAST_FRAME)
133 ref_fb_idx = cm->lst_fb_idx;
134 else if (ref_frame_flag == VP8_GOLD_FRAME)
135 ref_fb_idx = cm->gld_fb_idx;
136 else if (ref_frame_flag == VP8_ALTR_FRAME)
137 ref_fb_idx = cm->alt_fb_idx;
138 else{
139 vpx_internal_error(&pbi->common.error, VPX_CODEC_ERROR,
140 "Invalid reference frame");
141 return pbi->common.error.error_code;
142 }
143
144 if(cm->yv12_fb[ref_fb_idx].y_height != sd->y_height ||
145 cm->yv12_fb[ref_fb_idx].y_width != sd->y_width ||
146 cm->yv12_fb[ref_fb_idx].uv_height != sd->uv_height ||
147 cm->yv12_fb[ref_fb_idx].uv_width != sd->uv_width){
148 vpx_internal_error(&pbi->common.error, VPX_CODEC_ERROR,
149 "Incorrect buffer dimensions");
150 }
151 else
152 vp8_yv12_copy_frame(&cm->yv12_fb[ref_fb_idx], sd);
153
154 return pbi->common.error.error_code;
155 }
156
157
vp8dx_set_reference(VP8D_COMP * pbi,enum vpx_ref_frame_type ref_frame_flag,YV12_BUFFER_CONFIG * sd)158 vpx_codec_err_t vp8dx_set_reference(VP8D_COMP *pbi, enum vpx_ref_frame_type ref_frame_flag, YV12_BUFFER_CONFIG *sd)
159 {
160 VP8_COMMON *cm = &pbi->common;
161 int *ref_fb_ptr = NULL;
162 int free_fb;
163
164 if (ref_frame_flag == VP8_LAST_FRAME)
165 ref_fb_ptr = &cm->lst_fb_idx;
166 else if (ref_frame_flag == VP8_GOLD_FRAME)
167 ref_fb_ptr = &cm->gld_fb_idx;
168 else if (ref_frame_flag == VP8_ALTR_FRAME)
169 ref_fb_ptr = &cm->alt_fb_idx;
170 else{
171 vpx_internal_error(&pbi->common.error, VPX_CODEC_ERROR,
172 "Invalid reference frame");
173 return pbi->common.error.error_code;
174 }
175
176 if(cm->yv12_fb[*ref_fb_ptr].y_height != sd->y_height ||
177 cm->yv12_fb[*ref_fb_ptr].y_width != sd->y_width ||
178 cm->yv12_fb[*ref_fb_ptr].uv_height != sd->uv_height ||
179 cm->yv12_fb[*ref_fb_ptr].uv_width != sd->uv_width){
180 vpx_internal_error(&pbi->common.error, VPX_CODEC_ERROR,
181 "Incorrect buffer dimensions");
182 }
183 else{
184 /* Find an empty frame buffer. */
185 free_fb = get_free_fb(cm);
186 /* Decrease fb_idx_ref_cnt since it will be increased again in
187 * ref_cnt_fb() below. */
188 cm->fb_idx_ref_cnt[free_fb]--;
189
190 /* Manage the reference counters and copy image. */
191 ref_cnt_fb (cm->fb_idx_ref_cnt, ref_fb_ptr, free_fb);
192 vp8_yv12_copy_frame(sd, &cm->yv12_fb[*ref_fb_ptr]);
193 }
194
195 return pbi->common.error.error_code;
196 }
197
get_free_fb(VP8_COMMON * cm)198 static int get_free_fb (VP8_COMMON *cm)
199 {
200 int i;
201 for (i = 0; i < NUM_YV12_BUFFERS; i++)
202 if (cm->fb_idx_ref_cnt[i] == 0)
203 break;
204
205 assert(i < NUM_YV12_BUFFERS);
206 cm->fb_idx_ref_cnt[i] = 1;
207 return i;
208 }
209
ref_cnt_fb(int * buf,int * idx,int new_idx)210 static void ref_cnt_fb (int *buf, int *idx, int new_idx)
211 {
212 if (buf[*idx] > 0)
213 buf[*idx]--;
214
215 *idx = new_idx;
216
217 buf[new_idx]++;
218 }
219
220 /* If any buffer copy / swapping is signalled it should be done here. */
swap_frame_buffers(VP8_COMMON * cm)221 static int swap_frame_buffers (VP8_COMMON *cm)
222 {
223 int err = 0;
224
225 /* The alternate reference frame or golden frame can be updated
226 * using the new, last, or golden/alt ref frame. If it
227 * is updated using the newly decoded frame it is a refresh.
228 * An update using the last or golden/alt ref frame is a copy.
229 */
230 if (cm->copy_buffer_to_arf)
231 {
232 int new_fb = 0;
233
234 if (cm->copy_buffer_to_arf == 1)
235 new_fb = cm->lst_fb_idx;
236 else if (cm->copy_buffer_to_arf == 2)
237 new_fb = cm->gld_fb_idx;
238 else
239 err = -1;
240
241 ref_cnt_fb (cm->fb_idx_ref_cnt, &cm->alt_fb_idx, new_fb);
242 }
243
244 if (cm->copy_buffer_to_gf)
245 {
246 int new_fb = 0;
247
248 if (cm->copy_buffer_to_gf == 1)
249 new_fb = cm->lst_fb_idx;
250 else if (cm->copy_buffer_to_gf == 2)
251 new_fb = cm->alt_fb_idx;
252 else
253 err = -1;
254
255 ref_cnt_fb (cm->fb_idx_ref_cnt, &cm->gld_fb_idx, new_fb);
256 }
257
258 if (cm->refresh_golden_frame)
259 ref_cnt_fb (cm->fb_idx_ref_cnt, &cm->gld_fb_idx, cm->new_fb_idx);
260
261 if (cm->refresh_alt_ref_frame)
262 ref_cnt_fb (cm->fb_idx_ref_cnt, &cm->alt_fb_idx, cm->new_fb_idx);
263
264 if (cm->refresh_last_frame)
265 {
266 ref_cnt_fb (cm->fb_idx_ref_cnt, &cm->lst_fb_idx, cm->new_fb_idx);
267
268 cm->frame_to_show = &cm->yv12_fb[cm->lst_fb_idx];
269 }
270 else
271 cm->frame_to_show = &cm->yv12_fb[cm->new_fb_idx];
272
273 cm->fb_idx_ref_cnt[cm->new_fb_idx]--;
274
275 return err;
276 }
277
check_fragments_for_errors(VP8D_COMP * pbi)278 static int check_fragments_for_errors(VP8D_COMP *pbi)
279 {
280 if (!pbi->ec_active &&
281 pbi->fragments.count <= 1 && pbi->fragments.sizes[0] == 0)
282 {
283 VP8_COMMON *cm = &pbi->common;
284
285 /* If error concealment is disabled we won't signal missing frames
286 * to the decoder.
287 */
288 if (cm->fb_idx_ref_cnt[cm->lst_fb_idx] > 1)
289 {
290 /* The last reference shares buffer with another reference
291 * buffer. Move it to its own buffer before setting it as
292 * corrupt, otherwise we will make multiple buffers corrupt.
293 */
294 const int prev_idx = cm->lst_fb_idx;
295 cm->fb_idx_ref_cnt[prev_idx]--;
296 cm->lst_fb_idx = get_free_fb(cm);
297 vp8_yv12_copy_frame(&cm->yv12_fb[prev_idx],
298 &cm->yv12_fb[cm->lst_fb_idx]);
299 }
300 /* This is used to signal that we are missing frames.
301 * We do not know if the missing frame(s) was supposed to update
302 * any of the reference buffers, but we act conservative and
303 * mark only the last buffer as corrupted.
304 */
305 cm->yv12_fb[cm->lst_fb_idx].corrupted = 1;
306
307 /* Signal that we have no frame to show. */
308 cm->show_frame = 0;
309
310 /* Nothing more to do. */
311 return 0;
312 }
313
314 return 1;
315 }
316
vp8dx_receive_compressed_data(VP8D_COMP * pbi,size_t size,const uint8_t * source,int64_t time_stamp)317 int vp8dx_receive_compressed_data(VP8D_COMP *pbi, size_t size,
318 const uint8_t *source,
319 int64_t time_stamp)
320 {
321 VP8_COMMON *cm = &pbi->common;
322 int retcode = -1;
323 (void)size;
324 (void)source;
325
326 pbi->common.error.error_code = VPX_CODEC_OK;
327
328 retcode = check_fragments_for_errors(pbi);
329 if(retcode <= 0)
330 return retcode;
331
332 cm->new_fb_idx = get_free_fb (cm);
333
334 /* setup reference frames for vp8_decode_frame */
335 pbi->dec_fb_ref[INTRA_FRAME] = &cm->yv12_fb[cm->new_fb_idx];
336 pbi->dec_fb_ref[LAST_FRAME] = &cm->yv12_fb[cm->lst_fb_idx];
337 pbi->dec_fb_ref[GOLDEN_FRAME] = &cm->yv12_fb[cm->gld_fb_idx];
338 pbi->dec_fb_ref[ALTREF_FRAME] = &cm->yv12_fb[cm->alt_fb_idx];
339
340 if (setjmp(pbi->common.error.jmp))
341 {
342 /* We do not know if the missing frame(s) was supposed to update
343 * any of the reference buffers, but we act conservative and
344 * mark only the last buffer as corrupted.
345 */
346 cm->yv12_fb[cm->lst_fb_idx].corrupted = 1;
347
348 if (cm->fb_idx_ref_cnt[cm->new_fb_idx] > 0)
349 cm->fb_idx_ref_cnt[cm->new_fb_idx]--;
350
351 goto decode_exit;
352 }
353
354 pbi->common.error.setjmp = 1;
355
356 retcode = vp8_decode_frame(pbi);
357
358 if (retcode < 0)
359 {
360 if (cm->fb_idx_ref_cnt[cm->new_fb_idx] > 0)
361 cm->fb_idx_ref_cnt[cm->new_fb_idx]--;
362
363 pbi->common.error.error_code = VPX_CODEC_ERROR;
364 goto decode_exit;
365 }
366
367 if (swap_frame_buffers (cm))
368 {
369 pbi->common.error.error_code = VPX_CODEC_ERROR;
370 goto decode_exit;
371 }
372
373 vp8_clear_system_state();
374
375 if (cm->show_frame)
376 {
377 cm->current_video_frame++;
378 cm->show_frame_mi = cm->mi;
379 }
380
381 #if CONFIG_ERROR_CONCEALMENT
382 /* swap the mode infos to storage for future error concealment */
383 if (pbi->ec_enabled && pbi->common.prev_mi)
384 {
385 MODE_INFO* tmp = pbi->common.prev_mi;
386 int row, col;
387 pbi->common.prev_mi = pbi->common.mi;
388 pbi->common.mi = tmp;
389
390 /* Propagate the segment_ids to the next frame */
391 for (row = 0; row < pbi->common.mb_rows; ++row)
392 {
393 for (col = 0; col < pbi->common.mb_cols; ++col)
394 {
395 const int i = row*pbi->common.mode_info_stride + col;
396 pbi->common.mi[i].mbmi.segment_id =
397 pbi->common.prev_mi[i].mbmi.segment_id;
398 }
399 }
400 }
401 #endif
402
403 pbi->ready_for_new_data = 0;
404 pbi->last_time_stamp = time_stamp;
405
406 decode_exit:
407 pbi->common.error.setjmp = 0;
408 vp8_clear_system_state();
409 return retcode;
410 }
vp8dx_get_raw_frame(VP8D_COMP * pbi,YV12_BUFFER_CONFIG * sd,int64_t * time_stamp,int64_t * time_end_stamp,vp8_ppflags_t * flags)411 int vp8dx_get_raw_frame(VP8D_COMP *pbi, YV12_BUFFER_CONFIG *sd, int64_t *time_stamp, int64_t *time_end_stamp, vp8_ppflags_t *flags)
412 {
413 int ret = -1;
414
415 if (pbi->ready_for_new_data == 1)
416 return ret;
417
418 /* ie no raw frame to show!!! */
419 if (pbi->common.show_frame == 0)
420 return ret;
421
422 pbi->ready_for_new_data = 1;
423 *time_stamp = pbi->last_time_stamp;
424 *time_end_stamp = 0;
425
426 #if CONFIG_POSTPROC
427 ret = vp8_post_proc_frame(&pbi->common, sd, flags);
428 #else
429 (void)flags;
430
431 if (pbi->common.frame_to_show)
432 {
433 *sd = *pbi->common.frame_to_show;
434 sd->y_width = pbi->common.Width;
435 sd->y_height = pbi->common.Height;
436 sd->uv_height = pbi->common.Height / 2;
437 ret = 0;
438 }
439 else
440 {
441 ret = -1;
442 }
443
444 #endif /*!CONFIG_POSTPROC*/
445 vp8_clear_system_state();
446 return ret;
447 }
448
449
450 /* This function as written isn't decoder specific, but the encoder has
451 * much faster ways of computing this, so it's ok for it to live in a
452 * decode specific file.
453 */
vp8dx_references_buffer(VP8_COMMON * oci,int ref_frame)454 int vp8dx_references_buffer( VP8_COMMON *oci, int ref_frame )
455 {
456 const MODE_INFO *mi = oci->mi;
457 int mb_row, mb_col;
458
459 for (mb_row = 0; mb_row < oci->mb_rows; mb_row++)
460 {
461 for (mb_col = 0; mb_col < oci->mb_cols; mb_col++,mi++)
462 {
463 if( mi->mbmi.ref_frame == ref_frame)
464 return 1;
465 }
466 mi++;
467 }
468 return 0;
469
470 }
471
vp8_create_decoder_instances(struct frame_buffers * fb,VP8D_CONFIG * oxcf)472 int vp8_create_decoder_instances(struct frame_buffers *fb, VP8D_CONFIG *oxcf)
473 {
474 if(!fb->use_frame_threads)
475 {
476 /* decoder instance for single thread mode */
477 fb->pbi[0] = create_decompressor(oxcf);
478 if(!fb->pbi[0])
479 return VPX_CODEC_ERROR;
480
481 #if CONFIG_MULTITHREAD
482 /* enable row-based threading only when use_frame_threads
483 * is disabled */
484 fb->pbi[0]->max_threads = oxcf->max_threads;
485 vp8_decoder_create_threads(fb->pbi[0]);
486 #endif
487 }
488 else
489 {
490 /* TODO : create frame threads and decoder instances for each
491 * thread here */
492 }
493
494 return VPX_CODEC_OK;
495 }
496
vp8_remove_decoder_instances(struct frame_buffers * fb)497 int vp8_remove_decoder_instances(struct frame_buffers *fb)
498 {
499 if(!fb->use_frame_threads)
500 {
501 VP8D_COMP *pbi = fb->pbi[0];
502
503 if (!pbi)
504 return VPX_CODEC_ERROR;
505 #if CONFIG_MULTITHREAD
506 if (pbi->b_multithreaded_rd)
507 vp8mt_de_alloc_temp_buffers(pbi, pbi->common.mb_rows);
508 vp8_decoder_remove_threads(pbi);
509 #endif
510
511 /* decoder instance for single thread mode */
512 remove_decompressor(pbi);
513 }
514 else
515 {
516 /* TODO : remove frame threads and decoder instances for each
517 * thread here */
518 }
519
520 return VPX_CODEC_OK;
521 }
522