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 <assert.h> 12 #include <stdlib.h> 13 #include <string.h> 14 #include "./vp8_rtcd.h" 15 #include "./vpx_dsp_rtcd.h" 16 #include "./vpx_scale_rtcd.h" 17 #include "vpx/vpx_decoder.h" 18 #include "vpx/vp8dx.h" 19 #include "vpx/internal/vpx_codec_internal.h" 20 #include "vpx_version.h" 21 #include "common/alloccommon.h" 22 #include "common/common.h" 23 #include "common/onyxd.h" 24 #include "decoder/onyxd_int.h" 25 #include "vpx_dsp/vpx_dsp_common.h" 26 #include "vpx_mem/vpx_mem.h" 27 #include "vpx_ports/system_state.h" 28 #if CONFIG_ERROR_CONCEALMENT 29 #include "decoder/error_concealment.h" 30 #endif 31 #include "decoder/decoderthreading.h" 32 33 #define VP8_CAP_POSTPROC (CONFIG_POSTPROC ? VPX_CODEC_CAP_POSTPROC : 0) 34 #define VP8_CAP_ERROR_CONCEALMENT \ 35 (CONFIG_ERROR_CONCEALMENT ? VPX_CODEC_CAP_ERROR_CONCEALMENT : 0) 36 37 typedef vpx_codec_stream_info_t vp8_stream_info_t; 38 39 /* Structures for handling memory allocations */ 40 typedef enum { VP8_SEG_ALG_PRIV = 256, VP8_SEG_MAX } mem_seg_id_t; 41 #define NELEMENTS(x) ((int)(sizeof(x) / sizeof(x[0]))) 42 43 struct vpx_codec_alg_priv { 44 vpx_codec_priv_t base; 45 vpx_codec_dec_cfg_t cfg; 46 vp8_stream_info_t si; 47 int decoder_init; 48 int postproc_cfg_set; 49 vp8_postproc_cfg_t postproc_cfg; 50 vpx_decrypt_cb decrypt_cb; 51 void *decrypt_state; 52 vpx_image_t img; 53 int img_setup; 54 struct frame_buffers yv12_frame_buffers; 55 void *user_priv; 56 FRAGMENT_DATA fragments; 57 }; 58 59 static int vp8_init_ctx(vpx_codec_ctx_t *ctx) { 60 vpx_codec_alg_priv_t *priv = 61 (vpx_codec_alg_priv_t *)vpx_calloc(1, sizeof(*priv)); 62 if (!priv) return 1; 63 64 ctx->priv = (vpx_codec_priv_t *)priv; 65 ctx->priv->init_flags = ctx->init_flags; 66 67 priv->si.sz = sizeof(priv->si); 68 priv->decrypt_cb = NULL; 69 priv->decrypt_state = NULL; 70 71 if (ctx->config.dec) { 72 /* Update the reference to the config structure to an internal copy. */ 73 priv->cfg = *ctx->config.dec; 74 ctx->config.dec = &priv->cfg; 75 } 76 77 return 0; 78 } 79 80 static vpx_codec_err_t vp8_init(vpx_codec_ctx_t *ctx, 81 vpx_codec_priv_enc_mr_cfg_t *data) { 82 vpx_codec_err_t res = VPX_CODEC_OK; 83 (void)data; 84 85 vp8_rtcd(); 86 vpx_dsp_rtcd(); 87 vpx_scale_rtcd(); 88 89 /* This function only allocates space for the vpx_codec_alg_priv_t 90 * structure. More memory may be required at the time the stream 91 * information becomes known. 92 */ 93 if (!ctx->priv) { 94 vpx_codec_alg_priv_t *priv; 95 96 if (vp8_init_ctx(ctx)) return VPX_CODEC_MEM_ERROR; 97 98 priv = (vpx_codec_alg_priv_t *)ctx->priv; 99 100 /* initialize number of fragments to zero */ 101 priv->fragments.count = 0; 102 /* is input fragments enabled? */ 103 priv->fragments.enabled = 104 (priv->base.init_flags & VPX_CODEC_USE_INPUT_FRAGMENTS); 105 106 /*post processing level initialized to do nothing */ 107 } 108 109 return res; 110 } 111 112 static vpx_codec_err_t vp8_destroy(vpx_codec_alg_priv_t *ctx) { 113 vp8_remove_decoder_instances(&ctx->yv12_frame_buffers); 114 115 vpx_free(ctx); 116 117 return VPX_CODEC_OK; 118 } 119 120 static vpx_codec_err_t vp8_peek_si_internal(const uint8_t *data, 121 unsigned int data_sz, 122 vpx_codec_stream_info_t *si, 123 vpx_decrypt_cb decrypt_cb, 124 void *decrypt_state) { 125 vpx_codec_err_t res = VPX_CODEC_OK; 126 127 assert(data != NULL); 128 129 if (data + data_sz <= data) { 130 res = VPX_CODEC_INVALID_PARAM; 131 } else { 132 /* Parse uncompresssed part of key frame header. 133 * 3 bytes:- including version, frame type and an offset 134 * 3 bytes:- sync code (0x9d, 0x01, 0x2a) 135 * 4 bytes:- including image width and height in the lowest 14 bits 136 * of each 2-byte value. 137 */ 138 uint8_t clear_buffer[10]; 139 const uint8_t *clear = data; 140 if (decrypt_cb) { 141 int n = VPXMIN(sizeof(clear_buffer), data_sz); 142 decrypt_cb(decrypt_state, data, clear_buffer, n); 143 clear = clear_buffer; 144 } 145 si->is_kf = 0; 146 147 if (data_sz >= 10 && !(clear[0] & 0x01)) /* I-Frame */ 148 { 149 si->is_kf = 1; 150 151 /* vet via sync code */ 152 if (clear[3] != 0x9d || clear[4] != 0x01 || clear[5] != 0x2a) { 153 return VPX_CODEC_UNSUP_BITSTREAM; 154 } 155 156 si->w = (clear[6] | (clear[7] << 8)) & 0x3fff; 157 si->h = (clear[8] | (clear[9] << 8)) & 0x3fff; 158 159 /*printf("w=%d, h=%d\n", si->w, si->h);*/ 160 if (!(si->h && si->w)) res = VPX_CODEC_CORRUPT_FRAME; 161 } else { 162 res = VPX_CODEC_UNSUP_BITSTREAM; 163 } 164 } 165 166 return res; 167 } 168 169 static vpx_codec_err_t vp8_peek_si(const uint8_t *data, unsigned int data_sz, 170 vpx_codec_stream_info_t *si) { 171 return vp8_peek_si_internal(data, data_sz, si, NULL, NULL); 172 } 173 174 static vpx_codec_err_t vp8_get_si(vpx_codec_alg_priv_t *ctx, 175 vpx_codec_stream_info_t *si) { 176 unsigned int sz; 177 178 if (si->sz >= sizeof(vp8_stream_info_t)) { 179 sz = sizeof(vp8_stream_info_t); 180 } else { 181 sz = sizeof(vpx_codec_stream_info_t); 182 } 183 184 memcpy(si, &ctx->si, sz); 185 si->sz = sz; 186 187 return VPX_CODEC_OK; 188 } 189 190 static vpx_codec_err_t update_error_state( 191 vpx_codec_alg_priv_t *ctx, const struct vpx_internal_error_info *error) { 192 vpx_codec_err_t res; 193 194 if ((res = error->error_code)) { 195 ctx->base.err_detail = error->has_detail ? error->detail : NULL; 196 } 197 198 return res; 199 } 200 201 static void yuvconfig2image(vpx_image_t *img, const YV12_BUFFER_CONFIG *yv12, 202 void *user_priv) { 203 /** vpx_img_wrap() doesn't allow specifying independent strides for 204 * the Y, U, and V planes, nor other alignment adjustments that 205 * might be representable by a YV12_BUFFER_CONFIG, so we just 206 * initialize all the fields.*/ 207 img->fmt = VPX_IMG_FMT_I420; 208 img->w = yv12->y_stride; 209 img->h = (yv12->y_height + 2 * VP8BORDERINPIXELS + 15) & ~15; 210 img->d_w = img->r_w = yv12->y_width; 211 img->d_h = img->r_h = yv12->y_height; 212 img->x_chroma_shift = 1; 213 img->y_chroma_shift = 1; 214 img->planes[VPX_PLANE_Y] = yv12->y_buffer; 215 img->planes[VPX_PLANE_U] = yv12->u_buffer; 216 img->planes[VPX_PLANE_V] = yv12->v_buffer; 217 img->planes[VPX_PLANE_ALPHA] = NULL; 218 img->stride[VPX_PLANE_Y] = yv12->y_stride; 219 img->stride[VPX_PLANE_U] = yv12->uv_stride; 220 img->stride[VPX_PLANE_V] = yv12->uv_stride; 221 img->stride[VPX_PLANE_ALPHA] = yv12->y_stride; 222 img->bit_depth = 8; 223 img->bps = 12; 224 img->user_priv = user_priv; 225 img->img_data = yv12->buffer_alloc; 226 img->img_data_owner = 0; 227 img->self_allocd = 0; 228 } 229 230 static int update_fragments(vpx_codec_alg_priv_t *ctx, const uint8_t *data, 231 unsigned int data_sz, vpx_codec_err_t *res) { 232 *res = VPX_CODEC_OK; 233 234 if (ctx->fragments.count == 0) { 235 /* New frame, reset fragment pointers and sizes */ 236 memset((void *)ctx->fragments.ptrs, 0, sizeof(ctx->fragments.ptrs)); 237 memset(ctx->fragments.sizes, 0, sizeof(ctx->fragments.sizes)); 238 } 239 if (ctx->fragments.enabled && !(data == NULL && data_sz == 0)) { 240 /* Store a pointer to this fragment and return. We haven't 241 * received the complete frame yet, so we will wait with decoding. 242 */ 243 ctx->fragments.ptrs[ctx->fragments.count] = data; 244 ctx->fragments.sizes[ctx->fragments.count] = data_sz; 245 ctx->fragments.count++; 246 if (ctx->fragments.count > (1 << EIGHT_PARTITION) + 1) { 247 ctx->fragments.count = 0; 248 *res = VPX_CODEC_INVALID_PARAM; 249 return -1; 250 } 251 return 0; 252 } 253 254 if (!ctx->fragments.enabled && (data == NULL && data_sz == 0)) { 255 return 0; 256 } 257 258 if (!ctx->fragments.enabled) { 259 ctx->fragments.ptrs[0] = data; 260 ctx->fragments.sizes[0] = data_sz; 261 ctx->fragments.count = 1; 262 } 263 264 return 1; 265 } 266 267 static vpx_codec_err_t vp8_decode(vpx_codec_alg_priv_t *ctx, 268 const uint8_t *data, unsigned int data_sz, 269 void *user_priv, long deadline) { 270 vpx_codec_err_t res = VPX_CODEC_OK; 271 unsigned int resolution_change = 0; 272 unsigned int w, h; 273 274 if (!ctx->fragments.enabled && (data == NULL && data_sz == 0)) { 275 return 0; 276 } 277 278 /* Update the input fragment data */ 279 if (update_fragments(ctx, data, data_sz, &res) <= 0) return res; 280 281 /* Determine the stream parameters. Note that we rely on peek_si to 282 * validate that we have a buffer that does not wrap around the top 283 * of the heap. 284 */ 285 w = ctx->si.w; 286 h = ctx->si.h; 287 288 res = vp8_peek_si_internal(ctx->fragments.ptrs[0], ctx->fragments.sizes[0], 289 &ctx->si, ctx->decrypt_cb, ctx->decrypt_state); 290 291 if ((res == VPX_CODEC_UNSUP_BITSTREAM) && !ctx->si.is_kf) { 292 /* the peek function returns an error for non keyframes, however for 293 * this case, it is not an error */ 294 res = VPX_CODEC_OK; 295 } 296 297 if (!ctx->decoder_init && !ctx->si.is_kf) res = VPX_CODEC_UNSUP_BITSTREAM; 298 299 if ((ctx->si.h != h) || (ctx->si.w != w)) resolution_change = 1; 300 301 /* Initialize the decoder instance on the first frame*/ 302 if (!res && !ctx->decoder_init) { 303 VP8D_CONFIG oxcf; 304 305 oxcf.Width = ctx->si.w; 306 oxcf.Height = ctx->si.h; 307 oxcf.Version = 9; 308 oxcf.postprocess = 0; 309 oxcf.max_threads = ctx->cfg.threads; 310 oxcf.error_concealment = 311 (ctx->base.init_flags & VPX_CODEC_USE_ERROR_CONCEALMENT); 312 313 /* If postprocessing was enabled by the application and a 314 * configuration has not been provided, default it. 315 */ 316 if (!ctx->postproc_cfg_set && 317 (ctx->base.init_flags & VPX_CODEC_USE_POSTPROC)) { 318 ctx->postproc_cfg.post_proc_flag = 319 VP8_DEBLOCK | VP8_DEMACROBLOCK | VP8_MFQE; 320 ctx->postproc_cfg.deblocking_level = 4; 321 ctx->postproc_cfg.noise_level = 0; 322 } 323 324 res = vp8_create_decoder_instances(&ctx->yv12_frame_buffers, &oxcf); 325 if (res == VPX_CODEC_OK) ctx->decoder_init = 1; 326 } 327 328 /* Set these even if already initialized. The caller may have changed the 329 * decrypt config between frames. 330 */ 331 if (ctx->decoder_init) { 332 ctx->yv12_frame_buffers.pbi[0]->decrypt_cb = ctx->decrypt_cb; 333 ctx->yv12_frame_buffers.pbi[0]->decrypt_state = ctx->decrypt_state; 334 } 335 336 if (!res) { 337 VP8D_COMP *pbi = ctx->yv12_frame_buffers.pbi[0]; 338 if (resolution_change) { 339 VP8_COMMON *const pc = &pbi->common; 340 MACROBLOCKD *const xd = &pbi->mb; 341 #if CONFIG_MULTITHREAD 342 int i; 343 #endif 344 pc->Width = ctx->si.w; 345 pc->Height = ctx->si.h; 346 { 347 int prev_mb_rows = pc->mb_rows; 348 349 if (setjmp(pbi->common.error.jmp)) { 350 pbi->common.error.setjmp = 0; 351 /* on failure clear the cached resolution to ensure a full 352 * reallocation is attempted on resync. */ 353 ctx->si.w = 0; 354 ctx->si.h = 0; 355 vpx_clear_system_state(); 356 /* same return value as used in vp8dx_receive_compressed_data */ 357 return -1; 358 } 359 360 pbi->common.error.setjmp = 1; 361 362 if (pc->Width <= 0) { 363 pc->Width = w; 364 vpx_internal_error(&pc->error, VPX_CODEC_CORRUPT_FRAME, 365 "Invalid frame width"); 366 } 367 368 if (pc->Height <= 0) { 369 pc->Height = h; 370 vpx_internal_error(&pc->error, VPX_CODEC_CORRUPT_FRAME, 371 "Invalid frame height"); 372 } 373 374 if (vp8_alloc_frame_buffers(pc, pc->Width, pc->Height)) { 375 vpx_internal_error(&pc->error, VPX_CODEC_MEM_ERROR, 376 "Failed to allocate frame buffers"); 377 } 378 379 xd->pre = pc->yv12_fb[pc->lst_fb_idx]; 380 xd->dst = pc->yv12_fb[pc->new_fb_idx]; 381 382 #if CONFIG_MULTITHREAD 383 for (i = 0; i < pbi->allocated_decoding_thread_count; ++i) { 384 pbi->mb_row_di[i].mbd.dst = pc->yv12_fb[pc->new_fb_idx]; 385 vp8_build_block_doffsets(&pbi->mb_row_di[i].mbd); 386 } 387 #endif 388 vp8_build_block_doffsets(&pbi->mb); 389 390 /* allocate memory for last frame MODE_INFO array */ 391 #if CONFIG_ERROR_CONCEALMENT 392 393 if (pbi->ec_enabled) { 394 /* old prev_mip was released by vp8_de_alloc_frame_buffers() 395 * called in vp8_alloc_frame_buffers() */ 396 pc->prev_mip = vpx_calloc((pc->mb_cols + 1) * (pc->mb_rows + 1), 397 sizeof(MODE_INFO)); 398 399 if (!pc->prev_mip) { 400 vp8_de_alloc_frame_buffers(pc); 401 vpx_internal_error(&pc->error, VPX_CODEC_MEM_ERROR, 402 "Failed to allocate" 403 "last frame MODE_INFO array"); 404 } 405 406 pc->prev_mi = pc->prev_mip + pc->mode_info_stride + 1; 407 408 if (vp8_alloc_overlap_lists(pbi)) 409 vpx_internal_error(&pc->error, VPX_CODEC_MEM_ERROR, 410 "Failed to allocate overlap lists " 411 "for error concealment"); 412 } 413 414 #endif 415 416 #if CONFIG_MULTITHREAD 417 if (pbi->b_multithreaded_rd) { 418 vp8mt_alloc_temp_buffers(pbi, pc->Width, prev_mb_rows); 419 } 420 #else 421 (void)prev_mb_rows; 422 #endif 423 } 424 425 pbi->common.error.setjmp = 0; 426 427 /* required to get past the first get_free_fb() call */ 428 pbi->common.fb_idx_ref_cnt[0] = 0; 429 } 430 431 /* update the pbi fragment data */ 432 pbi->fragments = ctx->fragments; 433 434 ctx->user_priv = user_priv; 435 if (vp8dx_receive_compressed_data(pbi, data_sz, data, deadline)) { 436 res = update_error_state(ctx, &pbi->common.error); 437 } 438 439 /* get ready for the next series of fragments */ 440 ctx->fragments.count = 0; 441 } 442 443 return res; 444 } 445 446 static vpx_image_t *vp8_get_frame(vpx_codec_alg_priv_t *ctx, 447 vpx_codec_iter_t *iter) { 448 vpx_image_t *img = NULL; 449 450 /* iter acts as a flip flop, so an image is only returned on the first 451 * call to get_frame. 452 */ 453 if (!(*iter) && ctx->yv12_frame_buffers.pbi[0]) { 454 YV12_BUFFER_CONFIG sd; 455 int64_t time_stamp = 0, time_end_stamp = 0; 456 vp8_ppflags_t flags; 457 vp8_zero(flags); 458 459 if (ctx->base.init_flags & VPX_CODEC_USE_POSTPROC) { 460 flags.post_proc_flag = ctx->postproc_cfg.post_proc_flag; 461 flags.deblocking_level = ctx->postproc_cfg.deblocking_level; 462 flags.noise_level = ctx->postproc_cfg.noise_level; 463 } 464 465 if (0 == vp8dx_get_raw_frame(ctx->yv12_frame_buffers.pbi[0], &sd, 466 &time_stamp, &time_end_stamp, &flags)) { 467 yuvconfig2image(&ctx->img, &sd, ctx->user_priv); 468 469 img = &ctx->img; 470 *iter = img; 471 } 472 } 473 474 return img; 475 } 476 477 static vpx_codec_err_t image2yuvconfig(const vpx_image_t *img, 478 YV12_BUFFER_CONFIG *yv12) { 479 const int y_w = img->d_w; 480 const int y_h = img->d_h; 481 const int uv_w = (img->d_w + 1) / 2; 482 const int uv_h = (img->d_h + 1) / 2; 483 vpx_codec_err_t res = VPX_CODEC_OK; 484 yv12->y_buffer = img->planes[VPX_PLANE_Y]; 485 yv12->u_buffer = img->planes[VPX_PLANE_U]; 486 yv12->v_buffer = img->planes[VPX_PLANE_V]; 487 488 yv12->y_crop_width = y_w; 489 yv12->y_crop_height = y_h; 490 yv12->y_width = y_w; 491 yv12->y_height = y_h; 492 yv12->uv_crop_width = uv_w; 493 yv12->uv_crop_height = uv_h; 494 yv12->uv_width = uv_w; 495 yv12->uv_height = uv_h; 496 497 yv12->y_stride = img->stride[VPX_PLANE_Y]; 498 yv12->uv_stride = img->stride[VPX_PLANE_U]; 499 500 yv12->border = (img->stride[VPX_PLANE_Y] - img->d_w) / 2; 501 return res; 502 } 503 504 static vpx_codec_err_t vp8_set_reference(vpx_codec_alg_priv_t *ctx, 505 va_list args) { 506 vpx_ref_frame_t *data = va_arg(args, vpx_ref_frame_t *); 507 508 if (data) { 509 vpx_ref_frame_t *frame = (vpx_ref_frame_t *)data; 510 YV12_BUFFER_CONFIG sd; 511 512 image2yuvconfig(&frame->img, &sd); 513 514 return vp8dx_set_reference(ctx->yv12_frame_buffers.pbi[0], 515 frame->frame_type, &sd); 516 } else { 517 return VPX_CODEC_INVALID_PARAM; 518 } 519 } 520 521 static vpx_codec_err_t vp8_get_reference(vpx_codec_alg_priv_t *ctx, 522 va_list args) { 523 vpx_ref_frame_t *data = va_arg(args, vpx_ref_frame_t *); 524 525 if (data) { 526 vpx_ref_frame_t *frame = (vpx_ref_frame_t *)data; 527 YV12_BUFFER_CONFIG sd; 528 529 image2yuvconfig(&frame->img, &sd); 530 531 return vp8dx_get_reference(ctx->yv12_frame_buffers.pbi[0], 532 frame->frame_type, &sd); 533 } else { 534 return VPX_CODEC_INVALID_PARAM; 535 } 536 } 537 538 static vpx_codec_err_t vp8_get_quantizer(vpx_codec_alg_priv_t *ctx, 539 va_list args) { 540 int *const arg = va_arg(args, int *); 541 if (arg == NULL) return VPX_CODEC_INVALID_PARAM; 542 *arg = vp8dx_get_quantizer(ctx->yv12_frame_buffers.pbi[0]); 543 return VPX_CODEC_OK; 544 } 545 546 static vpx_codec_err_t vp8_set_postproc(vpx_codec_alg_priv_t *ctx, 547 va_list args) { 548 #if CONFIG_POSTPROC 549 vp8_postproc_cfg_t *data = va_arg(args, vp8_postproc_cfg_t *); 550 551 if (data) { 552 ctx->postproc_cfg_set = 1; 553 ctx->postproc_cfg = *((vp8_postproc_cfg_t *)data); 554 return VPX_CODEC_OK; 555 } else { 556 return VPX_CODEC_INVALID_PARAM; 557 } 558 559 #else 560 (void)ctx; 561 (void)args; 562 return VPX_CODEC_INCAPABLE; 563 #endif 564 } 565 566 static vpx_codec_err_t vp8_get_last_ref_updates(vpx_codec_alg_priv_t *ctx, 567 va_list args) { 568 int *update_info = va_arg(args, int *); 569 570 if (update_info) { 571 VP8D_COMP *pbi = (VP8D_COMP *)ctx->yv12_frame_buffers.pbi[0]; 572 573 *update_info = pbi->common.refresh_alt_ref_frame * (int)VP8_ALTR_FRAME + 574 pbi->common.refresh_golden_frame * (int)VP8_GOLD_FRAME + 575 pbi->common.refresh_last_frame * (int)VP8_LAST_FRAME; 576 577 return VPX_CODEC_OK; 578 } else { 579 return VPX_CODEC_INVALID_PARAM; 580 } 581 } 582 583 extern int vp8dx_references_buffer(VP8_COMMON *oci, int ref_frame); 584 static vpx_codec_err_t vp8_get_last_ref_frame(vpx_codec_alg_priv_t *ctx, 585 va_list args) { 586 int *ref_info = va_arg(args, int *); 587 588 if (ref_info) { 589 VP8D_COMP *pbi = (VP8D_COMP *)ctx->yv12_frame_buffers.pbi[0]; 590 VP8_COMMON *oci = &pbi->common; 591 *ref_info = 592 (vp8dx_references_buffer(oci, ALTREF_FRAME) ? VP8_ALTR_FRAME : 0) | 593 (vp8dx_references_buffer(oci, GOLDEN_FRAME) ? VP8_GOLD_FRAME : 0) | 594 (vp8dx_references_buffer(oci, LAST_FRAME) ? VP8_LAST_FRAME : 0); 595 596 return VPX_CODEC_OK; 597 } else { 598 return VPX_CODEC_INVALID_PARAM; 599 } 600 } 601 602 static vpx_codec_err_t vp8_get_frame_corrupted(vpx_codec_alg_priv_t *ctx, 603 va_list args) { 604 int *corrupted = va_arg(args, int *); 605 VP8D_COMP *pbi = (VP8D_COMP *)ctx->yv12_frame_buffers.pbi[0]; 606 607 if (corrupted && pbi) { 608 const YV12_BUFFER_CONFIG *const frame = pbi->common.frame_to_show; 609 if (frame == NULL) return VPX_CODEC_ERROR; 610 *corrupted = frame->corrupted; 611 return VPX_CODEC_OK; 612 } else { 613 return VPX_CODEC_INVALID_PARAM; 614 } 615 } 616 617 static vpx_codec_err_t vp8_set_decryptor(vpx_codec_alg_priv_t *ctx, 618 va_list args) { 619 vpx_decrypt_init *init = va_arg(args, vpx_decrypt_init *); 620 621 if (init) { 622 ctx->decrypt_cb = init->decrypt_cb; 623 ctx->decrypt_state = init->decrypt_state; 624 } else { 625 ctx->decrypt_cb = NULL; 626 ctx->decrypt_state = NULL; 627 } 628 return VPX_CODEC_OK; 629 } 630 631 vpx_codec_ctrl_fn_map_t vp8_ctf_maps[] = { 632 { VP8_SET_REFERENCE, vp8_set_reference }, 633 { VP8_COPY_REFERENCE, vp8_get_reference }, 634 { VP8_SET_POSTPROC, vp8_set_postproc }, 635 { VP8D_GET_LAST_REF_UPDATES, vp8_get_last_ref_updates }, 636 { VP8D_GET_FRAME_CORRUPTED, vp8_get_frame_corrupted }, 637 { VP8D_GET_LAST_REF_USED, vp8_get_last_ref_frame }, 638 { VPXD_GET_LAST_QUANTIZER, vp8_get_quantizer }, 639 { VPXD_SET_DECRYPTOR, vp8_set_decryptor }, 640 { -1, NULL }, 641 }; 642 643 #ifndef VERSION_STRING 644 #define VERSION_STRING 645 #endif 646 CODEC_INTERFACE(vpx_codec_vp8_dx) = { 647 "WebM Project VP8 Decoder" VERSION_STRING, 648 VPX_CODEC_INTERNAL_ABI_VERSION, 649 VPX_CODEC_CAP_DECODER | VP8_CAP_POSTPROC | VP8_CAP_ERROR_CONCEALMENT | 650 VPX_CODEC_CAP_INPUT_FRAGMENTS, 651 /* vpx_codec_caps_t caps; */ 652 vp8_init, /* vpx_codec_init_fn_t init; */ 653 vp8_destroy, /* vpx_codec_destroy_fn_t destroy; */ 654 vp8_ctf_maps, /* vpx_codec_ctrl_fn_map_t *ctrl_maps; */ 655 { 656 vp8_peek_si, /* vpx_codec_peek_si_fn_t peek_si; */ 657 vp8_get_si, /* vpx_codec_get_si_fn_t get_si; */ 658 vp8_decode, /* vpx_codec_decode_fn_t decode; */ 659 vp8_get_frame, /* vpx_codec_frame_get_fn_t frame_get; */ 660 NULL, 661 }, 662 { 663 /* encoder functions */ 664 0, NULL, /* vpx_codec_enc_cfg_map_t */ 665 NULL, /* vpx_codec_encode_fn_t */ 666 NULL, /* vpx_codec_get_cx_data_fn_t */ 667 NULL, /* vpx_codec_enc_config_set_fn_t */ 668 NULL, /* vpx_codec_get_global_headers_fn_t */ 669 NULL, /* vpx_codec_get_preview_frame_fn_t */ 670 NULL /* vpx_codec_enc_mr_get_mem_loc_fn_t */ 671 } 672 }; 673
