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 43extern void vp8_init_loop_filter(VP8_COMMON *cm); 44extern void vp8cx_init_de_quantizer(VP8D_COMP *pbi); 45static int get_free_fb (VP8_COMMON *cm); 46static void ref_cnt_fb (int *buf, int *idx, int new_idx); 47 48static 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 59static 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 68static 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 127vpx_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 158vpx_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 198static 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 210static 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. */ 221static 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 278static 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 317int 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 406decode_exit: 407 pbi->common.error.setjmp = 0; 408 vp8_clear_system_state(); 409 return retcode; 410} 411int 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 */ 454int 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 472int 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 497int 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