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 #include "vp8/common/onyxc_int.h" 12 #if CONFIG_POSTPROC 13 #include "vp8/common/postproc.h" 14 #endif 15 #include "vp8/common/onyxd.h" 16 #include "onyxd_int.h" 17 #include "vpx_mem/vpx_mem.h" 18 #include "vp8/common/alloccommon.h" 19 #include "vp8/common/loopfilter.h" 20 #include "vp8/common/swapyv12buffer.h" 21 #include "vp8/common/threading.h" 22 #include "decoderthreading.h" 23 #include <stdio.h> 24 #include <assert.h> 25 26 #include "vp8/common/quant_common.h" 27 #include "vp8/common/reconintra.h" 28 #include "./vpx_dsp_rtcd.h" 29 #include "./vpx_scale_rtcd.h" 30 #include "vpx_scale/vpx_scale.h" 31 #include "vp8/common/systemdependent.h" 32 #include "vpx_ports/system_state.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 48 static void initialize_dec(void) { 49 static volatile int init_done = 0; 50 51 if (!init_done) { 52 vpx_dsp_rtcd(); 53 vp8_init_intra_predictors(); 54 init_done = 1; 55 } 56 } 57 58 static void remove_decompressor(VP8D_COMP *pbi) { 59 #if CONFIG_ERROR_CONCEALMENT 60 vp8_de_alloc_overlap_lists(pbi); 61 #endif 62 vp8_remove_common(&pbi->common); 63 vpx_free(pbi); 64 } 65 66 static struct VP8D_COMP *create_decompressor(VP8D_CONFIG *oxcf) { 67 VP8D_COMP *pbi = vpx_memalign(32, sizeof(VP8D_COMP)); 68 69 if (!pbi) return NULL; 70 71 memset(pbi, 0, sizeof(VP8D_COMP)); 72 73 if (setjmp(pbi->common.error.jmp)) { 74 pbi->common.error.setjmp = 0; 75 remove_decompressor(pbi); 76 return 0; 77 } 78 79 pbi->common.error.setjmp = 1; 80 81 vp8_create_common(&pbi->common); 82 83 pbi->common.current_video_frame = 0; 84 pbi->ready_for_new_data = 1; 85 86 /* vp8cx_init_de_quantizer() is first called here. Add check in 87 * frame_init_dequantizer() to avoid 88 * unnecessary calling of vp8cx_init_de_quantizer() for every frame. 89 */ 90 vp8cx_init_de_quantizer(pbi); 91 92 vp8_loop_filter_init(&pbi->common); 93 94 pbi->common.error.setjmp = 0; 95 96 #if CONFIG_ERROR_CONCEALMENT 97 pbi->ec_enabled = oxcf->error_concealment; 98 pbi->overlaps = NULL; 99 #else 100 (void)oxcf; 101 pbi->ec_enabled = 0; 102 #endif 103 /* Error concealment is activated after a key frame has been 104 * decoded without errors when error concealment is enabled. 105 */ 106 pbi->ec_active = 0; 107 108 pbi->decoded_key_frame = 0; 109 110 /* Independent partitions is activated when a frame updates the 111 * token probability table to have equal probabilities over the 112 * PREV_COEF context. 113 */ 114 pbi->independent_partitions = 0; 115 116 vp8_setup_block_dptrs(&pbi->mb); 117 118 once(initialize_dec); 119 120 return pbi; 121 } 122 123 vpx_codec_err_t vp8dx_get_reference(VP8D_COMP *pbi, 124 enum vpx_ref_frame_type ref_frame_flag, 125 YV12_BUFFER_CONFIG *sd) { 126 VP8_COMMON *cm = &pbi->common; 127 int ref_fb_idx; 128 129 if (ref_frame_flag == VP8_LAST_FRAME) { 130 ref_fb_idx = cm->lst_fb_idx; 131 } else if (ref_frame_flag == VP8_GOLD_FRAME) { 132 ref_fb_idx = cm->gld_fb_idx; 133 } else if (ref_frame_flag == VP8_ALTR_FRAME) { 134 ref_fb_idx = cm->alt_fb_idx; 135 } else { 136 vpx_internal_error(&pbi->common.error, VPX_CODEC_ERROR, 137 "Invalid reference frame"); 138 return pbi->common.error.error_code; 139 } 140 141 if (cm->yv12_fb[ref_fb_idx].y_height != sd->y_height || 142 cm->yv12_fb[ref_fb_idx].y_width != sd->y_width || 143 cm->yv12_fb[ref_fb_idx].uv_height != sd->uv_height || 144 cm->yv12_fb[ref_fb_idx].uv_width != sd->uv_width) { 145 vpx_internal_error(&pbi->common.error, VPX_CODEC_ERROR, 146 "Incorrect buffer dimensions"); 147 } else 148 vp8_yv12_copy_frame(&cm->yv12_fb[ref_fb_idx], sd); 149 150 return pbi->common.error.error_code; 151 } 152 153 vpx_codec_err_t vp8dx_set_reference(VP8D_COMP *pbi, 154 enum vpx_ref_frame_type ref_frame_flag, 155 YV12_BUFFER_CONFIG *sd) { 156 VP8_COMMON *cm = &pbi->common; 157 int *ref_fb_ptr = NULL; 158 int free_fb; 159 160 if (ref_frame_flag == VP8_LAST_FRAME) { 161 ref_fb_ptr = &cm->lst_fb_idx; 162 } else if (ref_frame_flag == VP8_GOLD_FRAME) { 163 ref_fb_ptr = &cm->gld_fb_idx; 164 } else if (ref_frame_flag == VP8_ALTR_FRAME) { 165 ref_fb_ptr = &cm->alt_fb_idx; 166 } else { 167 vpx_internal_error(&pbi->common.error, VPX_CODEC_ERROR, 168 "Invalid reference frame"); 169 return pbi->common.error.error_code; 170 } 171 172 if (cm->yv12_fb[*ref_fb_ptr].y_height != sd->y_height || 173 cm->yv12_fb[*ref_fb_ptr].y_width != sd->y_width || 174 cm->yv12_fb[*ref_fb_ptr].uv_height != sd->uv_height || 175 cm->yv12_fb[*ref_fb_ptr].uv_width != sd->uv_width) { 176 vpx_internal_error(&pbi->common.error, VPX_CODEC_ERROR, 177 "Incorrect buffer dimensions"); 178 } else { 179 /* Find an empty frame buffer. */ 180 free_fb = get_free_fb(cm); 181 /* Decrease fb_idx_ref_cnt since it will be increased again in 182 * ref_cnt_fb() below. */ 183 cm->fb_idx_ref_cnt[free_fb]--; 184 185 /* Manage the reference counters and copy image. */ 186 ref_cnt_fb(cm->fb_idx_ref_cnt, ref_fb_ptr, free_fb); 187 vp8_yv12_copy_frame(sd, &cm->yv12_fb[*ref_fb_ptr]); 188 } 189 190 return pbi->common.error.error_code; 191 } 192 193 static int get_free_fb(VP8_COMMON *cm) { 194 int i; 195 for (i = 0; i < NUM_YV12_BUFFERS; ++i) { 196 if (cm->fb_idx_ref_cnt[i] == 0) break; 197 } 198 199 assert(i < NUM_YV12_BUFFERS); 200 cm->fb_idx_ref_cnt[i] = 1; 201 return i; 202 } 203 204 static void ref_cnt_fb(int *buf, int *idx, int new_idx) { 205 if (buf[*idx] > 0) buf[*idx]--; 206 207 *idx = new_idx; 208 209 buf[new_idx]++; 210 } 211 212 /* If any buffer copy / swapping is signalled it should be done here. */ 213 static int swap_frame_buffers(VP8_COMMON *cm) { 214 int err = 0; 215 216 /* The alternate reference frame or golden frame can be updated 217 * using the new, last, or golden/alt ref frame. If it 218 * is updated using the newly decoded frame it is a refresh. 219 * An update using the last or golden/alt ref frame is a copy. 220 */ 221 if (cm->copy_buffer_to_arf) { 222 int new_fb = 0; 223 224 if (cm->copy_buffer_to_arf == 1) { 225 new_fb = cm->lst_fb_idx; 226 } else if (cm->copy_buffer_to_arf == 2) { 227 new_fb = cm->gld_fb_idx; 228 } else { 229 err = -1; 230 } 231 232 ref_cnt_fb(cm->fb_idx_ref_cnt, &cm->alt_fb_idx, new_fb); 233 } 234 235 if (cm->copy_buffer_to_gf) { 236 int new_fb = 0; 237 238 if (cm->copy_buffer_to_gf == 1) { 239 new_fb = cm->lst_fb_idx; 240 } else if (cm->copy_buffer_to_gf == 2) { 241 new_fb = cm->alt_fb_idx; 242 } else { 243 err = -1; 244 } 245 246 ref_cnt_fb(cm->fb_idx_ref_cnt, &cm->gld_fb_idx, new_fb); 247 } 248 249 if (cm->refresh_golden_frame) { 250 ref_cnt_fb(cm->fb_idx_ref_cnt, &cm->gld_fb_idx, cm->new_fb_idx); 251 } 252 253 if (cm->refresh_alt_ref_frame) { 254 ref_cnt_fb(cm->fb_idx_ref_cnt, &cm->alt_fb_idx, cm->new_fb_idx); 255 } 256 257 if (cm->refresh_last_frame) { 258 ref_cnt_fb(cm->fb_idx_ref_cnt, &cm->lst_fb_idx, cm->new_fb_idx); 259 260 cm->frame_to_show = &cm->yv12_fb[cm->lst_fb_idx]; 261 } else { 262 cm->frame_to_show = &cm->yv12_fb[cm->new_fb_idx]; 263 } 264 265 cm->fb_idx_ref_cnt[cm->new_fb_idx]--; 266 267 return err; 268 } 269 270 static int check_fragments_for_errors(VP8D_COMP *pbi) { 271 if (!pbi->ec_active && pbi->fragments.count <= 1 && 272 pbi->fragments.sizes[0] == 0) { 273 VP8_COMMON *cm = &pbi->common; 274 275 /* If error concealment is disabled we won't signal missing frames 276 * to the decoder. 277 */ 278 if (cm->fb_idx_ref_cnt[cm->lst_fb_idx] > 1) { 279 /* The last reference shares buffer with another reference 280 * buffer. Move it to its own buffer before setting it as 281 * corrupt, otherwise we will make multiple buffers corrupt. 282 */ 283 const int prev_idx = cm->lst_fb_idx; 284 cm->fb_idx_ref_cnt[prev_idx]--; 285 cm->lst_fb_idx = get_free_fb(cm); 286 vp8_yv12_copy_frame(&cm->yv12_fb[prev_idx], &cm->yv12_fb[cm->lst_fb_idx]); 287 } 288 /* This is used to signal that we are missing frames. 289 * We do not know if the missing frame(s) was supposed to update 290 * any of the reference buffers, but we act conservative and 291 * mark only the last buffer as corrupted. 292 */ 293 cm->yv12_fb[cm->lst_fb_idx].corrupted = 1; 294 295 /* Signal that we have no frame to show. */ 296 cm->show_frame = 0; 297 298 /* Nothing more to do. */ 299 return 0; 300 } 301 302 return 1; 303 } 304 305 int vp8dx_receive_compressed_data(VP8D_COMP *pbi, size_t size, 306 const uint8_t *source, int64_t time_stamp) { 307 VP8_COMMON *cm = &pbi->common; 308 int retcode = -1; 309 (void)size; 310 (void)source; 311 312 pbi->common.error.error_code = VPX_CODEC_OK; 313 314 retcode = check_fragments_for_errors(pbi); 315 if (retcode <= 0) return retcode; 316 317 cm->new_fb_idx = get_free_fb(cm); 318 319 /* setup reference frames for vp8_decode_frame */ 320 pbi->dec_fb_ref[INTRA_FRAME] = &cm->yv12_fb[cm->new_fb_idx]; 321 pbi->dec_fb_ref[LAST_FRAME] = &cm->yv12_fb[cm->lst_fb_idx]; 322 pbi->dec_fb_ref[GOLDEN_FRAME] = &cm->yv12_fb[cm->gld_fb_idx]; 323 pbi->dec_fb_ref[ALTREF_FRAME] = &cm->yv12_fb[cm->alt_fb_idx]; 324 325 if (setjmp(pbi->common.error.jmp)) { 326 /* We do not know if the missing frame(s) was supposed to update 327 * any of the reference buffers, but we act conservative and 328 * mark only the last buffer as corrupted. 329 */ 330 cm->yv12_fb[cm->lst_fb_idx].corrupted = 1; 331 332 if (cm->fb_idx_ref_cnt[cm->new_fb_idx] > 0) { 333 cm->fb_idx_ref_cnt[cm->new_fb_idx]--; 334 } 335 goto decode_exit; 336 } 337 338 pbi->common.error.setjmp = 1; 339 340 retcode = vp8_decode_frame(pbi); 341 342 if (retcode < 0) { 343 if (cm->fb_idx_ref_cnt[cm->new_fb_idx] > 0) { 344 cm->fb_idx_ref_cnt[cm->new_fb_idx]--; 345 } 346 347 pbi->common.error.error_code = VPX_CODEC_ERROR; 348 goto decode_exit; 349 } 350 351 if (swap_frame_buffers(cm)) { 352 pbi->common.error.error_code = VPX_CODEC_ERROR; 353 goto decode_exit; 354 } 355 356 vpx_clear_system_state(); 357 358 if (cm->show_frame) { 359 cm->current_video_frame++; 360 cm->show_frame_mi = cm->mi; 361 } 362 363 #if CONFIG_ERROR_CONCEALMENT 364 /* swap the mode infos to storage for future error concealment */ 365 if (pbi->ec_enabled && pbi->common.prev_mi) { 366 MODE_INFO *tmp = pbi->common.prev_mi; 367 int row, col; 368 pbi->common.prev_mi = pbi->common.mi; 369 pbi->common.mi = tmp; 370 371 /* Propagate the segment_ids to the next frame */ 372 for (row = 0; row < pbi->common.mb_rows; ++row) { 373 for (col = 0; col < pbi->common.mb_cols; ++col) { 374 const int i = row * pbi->common.mode_info_stride + col; 375 pbi->common.mi[i].mbmi.segment_id = 376 pbi->common.prev_mi[i].mbmi.segment_id; 377 } 378 } 379 } 380 #endif 381 382 pbi->ready_for_new_data = 0; 383 pbi->last_time_stamp = time_stamp; 384 385 decode_exit: 386 pbi->common.error.setjmp = 0; 387 vpx_clear_system_state(); 388 return retcode; 389 } 390 int vp8dx_get_raw_frame(VP8D_COMP *pbi, YV12_BUFFER_CONFIG *sd, 391 int64_t *time_stamp, int64_t *time_end_stamp, 392 vp8_ppflags_t *flags) { 393 int ret = -1; 394 395 if (pbi->ready_for_new_data == 1) return ret; 396 397 /* ie no raw frame to show!!! */ 398 if (pbi->common.show_frame == 0) return ret; 399 400 pbi->ready_for_new_data = 1; 401 *time_stamp = pbi->last_time_stamp; 402 *time_end_stamp = 0; 403 404 #if CONFIG_POSTPROC 405 ret = vp8_post_proc_frame(&pbi->common, sd, flags); 406 #else 407 (void)flags; 408 409 if (pbi->common.frame_to_show) { 410 *sd = *pbi->common.frame_to_show; 411 sd->y_width = pbi->common.Width; 412 sd->y_height = pbi->common.Height; 413 sd->uv_height = pbi->common.Height / 2; 414 ret = 0; 415 } else { 416 ret = -1; 417 } 418 419 #endif /*!CONFIG_POSTPROC*/ 420 vpx_clear_system_state(); 421 return ret; 422 } 423 424 /* This function as written isn't decoder specific, but the encoder has 425 * much faster ways of computing this, so it's ok for it to live in a 426 * decode specific file. 427 */ 428 int vp8dx_references_buffer(VP8_COMMON *oci, int ref_frame) { 429 const MODE_INFO *mi = oci->mi; 430 int mb_row, mb_col; 431 432 for (mb_row = 0; mb_row < oci->mb_rows; ++mb_row) { 433 for (mb_col = 0; mb_col < oci->mb_cols; mb_col++, mi++) { 434 if (mi->mbmi.ref_frame == ref_frame) return 1; 435 } 436 mi++; 437 } 438 return 0; 439 } 440 441 int vp8_create_decoder_instances(struct frame_buffers *fb, VP8D_CONFIG *oxcf) { 442 /* decoder instance for single thread mode */ 443 fb->pbi[0] = create_decompressor(oxcf); 444 if (!fb->pbi[0]) return VPX_CODEC_ERROR; 445 446 #if CONFIG_MULTITHREAD 447 if (setjmp(fb->pbi[0]->common.error.jmp)) { 448 vp8_remove_decoder_instances(fb); 449 memset(fb->pbi, 0, sizeof(fb->pbi)); 450 vpx_clear_system_state(); 451 return VPX_CODEC_ERROR; 452 } 453 454 fb->pbi[0]->common.error.setjmp = 1; 455 fb->pbi[0]->max_threads = oxcf->max_threads; 456 vp8_decoder_create_threads(fb->pbi[0]); 457 fb->pbi[0]->common.error.setjmp = 0; 458 #endif 459 return VPX_CODEC_OK; 460 } 461 462 int vp8_remove_decoder_instances(struct frame_buffers *fb) { 463 VP8D_COMP *pbi = fb->pbi[0]; 464 465 if (!pbi) return VPX_CODEC_ERROR; 466 #if CONFIG_MULTITHREAD 467 vp8_decoder_remove_threads(pbi); 468 #endif 469 470 /* decoder instance for single thread mode */ 471 remove_decompressor(pbi); 472 return VPX_CODEC_OK; 473 } 474 475 int vp8dx_get_quantizer(const VP8D_COMP *cpi) { 476 return cpi->common.base_qindex; 477 } 478
