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 <stdlib.h> 13 #include <string.h> 14 #include "vpx/vpx_decoder.h" 15 #include "vpx/vp8dx.h" 16 #include "vpx/internal/vpx_codec_internal.h" 17 #include "vpx_version.h" 18 #include "onyxd.h" 19 #include "onyxd_int.h" 20 21 #define VP8_CAP_POSTPROC (CONFIG_POSTPROC ? VPX_CODEC_CAP_POSTPROC : 0) 22 23 #if CONFIG_BIG_ENDIAN 24 # define swap4(d)\ 25 ((d&0x000000ff)<<24) | \ 26 ((d&0x0000ff00)<<8) | \ 27 ((d&0x00ff0000)>>8) | \ 28 ((d&0xff000000)>>24) 29 # define swap2(d)\ 30 ((d&0x000000ff)<<8) | \ 31 ((d&0x0000ff00)>>8) 32 #else 33 # define swap4(d) d 34 # define swap2(d) d 35 #endif 36 typedef vpx_codec_stream_info_t vp8_stream_info_t; 37 38 /* Structures for handling memory allocations */ 39 typedef enum 40 { 41 VP8_SEG_ALG_PRIV = 256, 42 VP8_SEG_MAX 43 } mem_seg_id_t; 44 #define NELEMENTS(x) (sizeof(x)/sizeof(x[0])) 45 46 static unsigned long vp8_priv_sz(const vpx_codec_dec_cfg_t *si, vpx_codec_flags_t); 47 48 typedef struct 49 { 50 unsigned int id; 51 unsigned long sz; 52 unsigned int align; 53 unsigned int flags; 54 unsigned long(*calc_sz)(const vpx_codec_dec_cfg_t *, vpx_codec_flags_t); 55 } mem_req_t; 56 57 static const mem_req_t vp8_mem_req_segs[] = 58 { 59 {VP8_SEG_ALG_PRIV, 0, 8, VPX_CODEC_MEM_ZERO, vp8_priv_sz}, 60 {VP8_SEG_MAX, 0, 0, 0, NULL} 61 }; 62 63 struct vpx_codec_alg_priv 64 { 65 vpx_codec_priv_t base; 66 vpx_codec_mmap_t mmaps[NELEMENTS(vp8_mem_req_segs)-1]; 67 vpx_codec_dec_cfg_t cfg; 68 vp8_stream_info_t si; 69 int defer_alloc; 70 int decoder_init; 71 VP8D_PTR pbi; 72 int postproc_cfg_set; 73 vp8_postproc_cfg_t postproc_cfg; 74 vpx_image_t img; 75 int img_setup; 76 int img_avail; 77 }; 78 79 static unsigned long vp8_priv_sz(const vpx_codec_dec_cfg_t *si, vpx_codec_flags_t flags) 80 { 81 /* Although this declaration is constant, we can't use it in the requested 82 * segments list because we want to define the requested segments list 83 * before defining the private type (so that the number of memory maps is 84 * known) 85 */ 86 (void)si; 87 return sizeof(vpx_codec_alg_priv_t); 88 } 89 90 91 static void vp8_mmap_dtor(vpx_codec_mmap_t *mmap) 92 { 93 free(mmap->priv); 94 } 95 96 static vpx_codec_err_t vp8_mmap_alloc(vpx_codec_mmap_t *mmap) 97 { 98 vpx_codec_err_t res; 99 unsigned int align; 100 101 align = mmap->align ? mmap->align - 1 : 0; 102 103 if (mmap->flags & VPX_CODEC_MEM_ZERO) 104 mmap->priv = calloc(1, mmap->sz + align); 105 else 106 mmap->priv = malloc(mmap->sz + align); 107 108 res = (mmap->priv) ? VPX_CODEC_OK : VPX_CODEC_MEM_ERROR; 109 mmap->base = (void *)((((uintptr_t)mmap->priv) + align) & ~(uintptr_t)align); 110 mmap->dtor = vp8_mmap_dtor; 111 return res; 112 } 113 114 static vpx_codec_err_t vp8_validate_mmaps(const vp8_stream_info_t *si, 115 const vpx_codec_mmap_t *mmaps, 116 vpx_codec_flags_t init_flags) 117 { 118 int i; 119 vpx_codec_err_t res = VPX_CODEC_OK; 120 121 for (i = 0; i < NELEMENTS(vp8_mem_req_segs) - 1; i++) 122 { 123 /* Ensure the segment has been allocated */ 124 if (!mmaps[i].base) 125 { 126 res = VPX_CODEC_MEM_ERROR; 127 break; 128 } 129 130 /* Verify variable size segment is big enough for the current si. */ 131 if (vp8_mem_req_segs[i].calc_sz) 132 { 133 vpx_codec_dec_cfg_t cfg; 134 135 cfg.w = si->w; 136 cfg.h = si->h; 137 138 if (mmaps[i].sz < vp8_mem_req_segs[i].calc_sz(&cfg, init_flags)) 139 { 140 res = VPX_CODEC_MEM_ERROR; 141 break; 142 } 143 } 144 } 145 146 return res; 147 } 148 149 static void vp8_init_ctx(vpx_codec_ctx_t *ctx, const vpx_codec_mmap_t *mmap) 150 { 151 int i; 152 153 ctx->priv = mmap->base; 154 ctx->priv->sz = sizeof(*ctx->priv); 155 ctx->priv->iface = ctx->iface; 156 ctx->priv->alg_priv = mmap->base; 157 158 for (i = 0; i < NELEMENTS(ctx->priv->alg_priv->mmaps); i++) 159 ctx->priv->alg_priv->mmaps[i].id = vp8_mem_req_segs[i].id; 160 161 ctx->priv->alg_priv->mmaps[0] = *mmap; 162 ctx->priv->alg_priv->si.sz = sizeof(ctx->priv->alg_priv->si); 163 ctx->priv->init_flags = ctx->init_flags; 164 165 if (ctx->config.dec) 166 { 167 /* Update the reference to the config structure to an internal copy. */ 168 ctx->priv->alg_priv->cfg = *ctx->config.dec; 169 ctx->config.dec = &ctx->priv->alg_priv->cfg; 170 } 171 } 172 173 static void *mmap_lkup(vpx_codec_alg_priv_t *ctx, int id) 174 { 175 int i; 176 177 for (i = 0; i < NELEMENTS(vp8_mem_req_segs); i++) 178 if (ctx->mmaps[i].id == id) 179 return ctx->mmaps[i].base; 180 181 return NULL; 182 } 183 static void vp8_finalize_mmaps(vpx_codec_alg_priv_t *ctx) 184 { 185 /* 186 ctx->pbi = mmap_lkup(ctx, VP6_SEG_PB_INSTANCE); 187 ctx->pbi->mbi.block_dx_info[0].idct_output_ptr = mmap_lkup(ctx, VP6_SEG_IDCT_BUFFER); 188 ctx->pbi->loop_filtered_block = mmap_lkup(ctx, VP6_SEG_LF_BLOCK); 189 ctx->pbi->huff = mmap_lkup(ctx, VP6_SEG_HUFF); 190 ctx->pbi->mbi.coeffs_base_ptr = mmap_lkup(ctx, VP6_SEG_COEFFS); 191 ctx->pbi->fc.above_y = mmap_lkup(ctx, VP6_SEG_ABOVEY); 192 ctx->pbi->fc.above_u = mmap_lkup(ctx, VP6_SEG_ABOVEU); 193 ctx->pbi->fc.above_v = mmap_lkup(ctx, VP6_SEG_ABOVEV); 194 ctx->pbi->prediction_mode = mmap_lkup(ctx, VP6_SEG_PRED_MODES); 195 ctx->pbi->mbmotion_vector = mmap_lkup(ctx, VP6_SEG_MV_FIELD); 196 ctx->pbi->fb_storage_ptr[0] = mmap_lkup(ctx, VP6_SEG_IMG0_STRG); 197 ctx->pbi->fb_storage_ptr[1] = mmap_lkup(ctx, VP6_SEG_IMG1_STRG); 198 ctx->pbi->fb_storage_ptr[2] = mmap_lkup(ctx, VP6_SEG_IMG2_STRG); 199 #if CONFIG_POSTPROC 200 ctx->pbi->postproc.deblock.fragment_variances = mmap_lkup(ctx, VP6_SEG_DEBLOCKER); 201 ctx->pbi->fb_storage_ptr[3] = mmap_lkup(ctx, VP6_SEG_PP_IMG_STRG); 202 #endif 203 */ 204 } 205 206 static vpx_codec_err_t vp8_init(vpx_codec_ctx_t *ctx) 207 { 208 vpx_codec_err_t res = VPX_CODEC_OK; 209 210 /* This function only allocates space for the vpx_codec_alg_priv_t 211 * structure. More memory may be required at the time the stream 212 * information becomes known. 213 */ 214 if (!ctx->priv) 215 { 216 vpx_codec_mmap_t mmap; 217 218 mmap.id = vp8_mem_req_segs[0].id; 219 mmap.sz = sizeof(vpx_codec_alg_priv_t); 220 mmap.align = vp8_mem_req_segs[0].align; 221 mmap.flags = vp8_mem_req_segs[0].flags; 222 223 res = vp8_mmap_alloc(&mmap); 224 225 if (!res) 226 { 227 vp8_init_ctx(ctx, &mmap); 228 229 ctx->priv->alg_priv->defer_alloc = 1; 230 /*post processing level initialized to do nothing */ 231 } 232 } 233 234 return res; 235 } 236 237 static vpx_codec_err_t vp8_destroy(vpx_codec_alg_priv_t *ctx) 238 { 239 int i; 240 241 vp8dx_remove_decompressor(ctx->pbi); 242 243 for (i = NELEMENTS(ctx->mmaps) - 1; i >= 0; i--) 244 { 245 if (ctx->mmaps[i].dtor) 246 ctx->mmaps[i].dtor(&ctx->mmaps[i]); 247 } 248 249 return VPX_CODEC_OK; 250 } 251 252 static vpx_codec_err_t vp8_peek_si(const uint8_t *data, 253 unsigned int data_sz, 254 vpx_codec_stream_info_t *si) 255 { 256 257 vpx_codec_err_t res = VPX_CODEC_OK; 258 { 259 /* Parse uncompresssed part of key frame header. 260 * 3 bytes:- including version, frame type and an offset 261 * 3 bytes:- sync code (0x9d, 0x01, 0x2a) 262 * 4 bytes:- including image width and height in the lowest 14 bits 263 * of each 2-byte value. 264 */ 265 si->is_kf = 0; 266 267 if (data_sz >= 10 && !(data[0] & 0x01)) /* I-Frame */ 268 { 269 const uint8_t *c = data + 3; 270 si->is_kf = 1; 271 272 // vet via sync code 273 if (c[0] != 0x9d || c[1] != 0x01 || c[2] != 0x2a) 274 res = VPX_CODEC_UNSUP_BITSTREAM; 275 276 si->w = swap2(*(const unsigned short *)(c + 3)) & 0x3fff; 277 si->h = swap2(*(const unsigned short *)(c + 5)) & 0x3fff; 278 279 //printf("w=%d, h=%d\n", si->w, si->h); 280 if (!(si->h | si->w)) 281 res = VPX_CODEC_UNSUP_BITSTREAM; 282 } 283 else 284 res = VPX_CODEC_UNSUP_BITSTREAM; 285 } 286 287 return res; 288 289 } 290 291 static vpx_codec_err_t vp8_get_si(vpx_codec_alg_priv_t *ctx, 292 vpx_codec_stream_info_t *si) 293 { 294 295 unsigned int sz; 296 297 if (si->sz >= sizeof(vp8_stream_info_t)) 298 sz = sizeof(vp8_stream_info_t); 299 else 300 sz = sizeof(vpx_codec_stream_info_t); 301 302 memcpy(si, &ctx->si, sz); 303 si->sz = sz; 304 305 return VPX_CODEC_OK; 306 } 307 308 309 static vpx_codec_err_t 310 update_error_state(vpx_codec_alg_priv_t *ctx, 311 const struct vpx_internal_error_info *error) 312 { 313 vpx_codec_err_t res; 314 315 if ((res = error->error_code)) 316 ctx->base.err_detail = error->has_detail 317 ? error->detail 318 : NULL; 319 320 return res; 321 } 322 323 324 static vpx_codec_err_t vp8_decode(vpx_codec_alg_priv_t *ctx, 325 const uint8_t *data, 326 unsigned int data_sz, 327 void *user_priv, 328 long deadline) 329 { 330 vpx_codec_err_t res = VPX_CODEC_OK; 331 332 ctx->img_avail = 0; 333 334 /* Determine the stream parameters */ 335 if (!ctx->si.h) 336 res = ctx->base.iface->dec.peek_si(data, data_sz, &ctx->si); 337 338 339 /* Perform deferred allocations, if required */ 340 if (!res && ctx->defer_alloc) 341 { 342 int i; 343 344 for (i = 1; !res && i < NELEMENTS(ctx->mmaps); i++) 345 { 346 vpx_codec_dec_cfg_t cfg; 347 348 cfg.w = ctx->si.w; 349 cfg.h = ctx->si.h; 350 ctx->mmaps[i].id = vp8_mem_req_segs[i].id; 351 ctx->mmaps[i].sz = vp8_mem_req_segs[i].sz; 352 ctx->mmaps[i].align = vp8_mem_req_segs[i].align; 353 ctx->mmaps[i].flags = vp8_mem_req_segs[i].flags; 354 355 if (!ctx->mmaps[i].sz) 356 ctx->mmaps[i].sz = vp8_mem_req_segs[i].calc_sz(&cfg, 357 ctx->base.init_flags); 358 359 res = vp8_mmap_alloc(&ctx->mmaps[i]); 360 } 361 362 if (!res) 363 vp8_finalize_mmaps(ctx); 364 365 ctx->defer_alloc = 0; 366 } 367 368 /* Initialize the decoder instance on the first frame*/ 369 if (!res && !ctx->decoder_init) 370 { 371 res = vp8_validate_mmaps(&ctx->si, ctx->mmaps, ctx->base.init_flags); 372 373 if (!res) 374 { 375 VP8D_CONFIG oxcf; 376 VP8D_PTR optr; 377 378 vp8dx_initialize(); 379 380 oxcf.Width = ctx->si.w; 381 oxcf.Height = ctx->si.h; 382 oxcf.Version = 9; 383 oxcf.postprocess = 0; 384 oxcf.max_threads = ctx->cfg.threads; 385 386 optr = vp8dx_create_decompressor(&oxcf); 387 388 /* If postprocessing was enabled by the application and a 389 * configuration has not been provided, default it. 390 */ 391 if (!ctx->postproc_cfg_set 392 && (ctx->base.init_flags & VPX_CODEC_USE_POSTPROC)) 393 { 394 ctx->postproc_cfg.post_proc_flag = 395 VP8_DEBLOCK | VP8_DEMACROBLOCK; 396 ctx->postproc_cfg.deblocking_level = 4; 397 ctx->postproc_cfg.noise_level = 0; 398 } 399 400 if (!optr) 401 res = VPX_CODEC_ERROR; 402 else 403 ctx->pbi = optr; 404 } 405 406 ctx->decoder_init = 1; 407 } 408 409 if (!res && ctx->pbi) 410 { 411 YV12_BUFFER_CONFIG sd; 412 INT64 time_stamp = 0, time_end_stamp = 0; 413 int ppflag = 0; 414 int ppdeblocking = 0; 415 int ppnoise = 0; 416 417 if (ctx->base.init_flags & VPX_CODEC_USE_POSTPROC) 418 { 419 ppflag = ctx->postproc_cfg.post_proc_flag; 420 ppdeblocking = ctx->postproc_cfg.deblocking_level; 421 ppnoise = ctx->postproc_cfg.noise_level; 422 } 423 424 if (vp8dx_receive_compressed_data(ctx->pbi, data_sz, data, deadline)) 425 { 426 VP8D_COMP *pbi = (VP8D_COMP *)ctx->pbi; 427 res = update_error_state(ctx, &pbi->common.error); 428 } 429 430 if (!res && 0 == vp8dx_get_raw_frame(ctx->pbi, &sd, &time_stamp, &time_end_stamp, ppdeblocking, ppnoise, ppflag)) 431 { 432 /* Align width/height */ 433 unsigned int a_w = (sd.y_width + 15) & ~15; 434 unsigned int a_h = (sd.y_height + 15) & ~15; 435 436 vpx_img_wrap(&ctx->img, VPX_IMG_FMT_I420, 437 a_w + 2 * VP8BORDERINPIXELS, 438 a_h + 2 * VP8BORDERINPIXELS, 439 1, 440 sd.buffer_alloc); 441 vpx_img_set_rect(&ctx->img, 442 VP8BORDERINPIXELS, VP8BORDERINPIXELS, 443 sd.y_width, sd.y_height); 444 ctx->img_avail = 1; 445 446 } 447 } 448 449 return res; 450 } 451 452 static vpx_image_t *vp8_get_frame(vpx_codec_alg_priv_t *ctx, 453 vpx_codec_iter_t *iter) 454 { 455 vpx_image_t *img = NULL; 456 457 if (ctx->img_avail) 458 { 459 /* iter acts as a flip flop, so an image is only returned on the first 460 * call to get_frame. 461 */ 462 if (!(*iter)) 463 { 464 img = &ctx->img; 465 *iter = img; 466 } 467 } 468 469 return img; 470 } 471 472 473 static 474 vpx_codec_err_t vp8_xma_get_mmap(const vpx_codec_ctx_t *ctx, 475 vpx_codec_mmap_t *mmap, 476 vpx_codec_iter_t *iter) 477 { 478 vpx_codec_err_t res; 479 const mem_req_t *seg_iter = *iter; 480 481 /* Get address of next segment request */ 482 do 483 { 484 if (!seg_iter) 485 seg_iter = vp8_mem_req_segs; 486 else if (seg_iter->id != VP8_SEG_MAX) 487 seg_iter++; 488 489 *iter = (vpx_codec_iter_t)seg_iter; 490 491 if (seg_iter->id != VP8_SEG_MAX) 492 { 493 mmap->id = seg_iter->id; 494 mmap->sz = seg_iter->sz; 495 mmap->align = seg_iter->align; 496 mmap->flags = seg_iter->flags; 497 498 if (!seg_iter->sz) 499 mmap->sz = seg_iter->calc_sz(ctx->config.dec, ctx->init_flags); 500 501 res = VPX_CODEC_OK; 502 } 503 else 504 res = VPX_CODEC_LIST_END; 505 } 506 while (!mmap->sz && res != VPX_CODEC_LIST_END); 507 508 return res; 509 } 510 511 static vpx_codec_err_t vp8_xma_set_mmap(vpx_codec_ctx_t *ctx, 512 const vpx_codec_mmap_t *mmap) 513 { 514 vpx_codec_err_t res = VPX_CODEC_MEM_ERROR; 515 int i, done; 516 517 if (!ctx->priv) 518 { 519 if (mmap->id == VP8_SEG_ALG_PRIV) 520 { 521 if (!ctx->priv) 522 { 523 vp8_init_ctx(ctx, mmap); 524 res = VPX_CODEC_OK; 525 } 526 } 527 } 528 529 done = 1; 530 531 if (!res && ctx->priv->alg_priv) 532 { 533 for (i = 0; i < NELEMENTS(vp8_mem_req_segs); i++) 534 { 535 if (ctx->priv->alg_priv->mmaps[i].id == mmap->id) 536 if (!ctx->priv->alg_priv->mmaps[i].base) 537 { 538 ctx->priv->alg_priv->mmaps[i] = *mmap; 539 res = VPX_CODEC_OK; 540 } 541 542 done &= (ctx->priv->alg_priv->mmaps[i].base != NULL); 543 } 544 } 545 546 if (done && !res) 547 { 548 vp8_finalize_mmaps(ctx->priv->alg_priv); 549 res = ctx->iface->init(ctx); 550 } 551 552 return res; 553 } 554 555 static vpx_codec_err_t image2yuvconfig(const vpx_image_t *img, 556 YV12_BUFFER_CONFIG *yv12) 557 { 558 vpx_codec_err_t res = VPX_CODEC_OK; 559 yv12->y_buffer = img->planes[VPX_PLANE_Y]; 560 yv12->u_buffer = img->planes[VPX_PLANE_U]; 561 yv12->v_buffer = img->planes[VPX_PLANE_V]; 562 563 yv12->y_width = img->d_w; 564 yv12->y_height = img->d_h; 565 yv12->uv_width = yv12->y_width / 2; 566 yv12->uv_height = yv12->y_height / 2; 567 568 yv12->y_stride = img->stride[VPX_PLANE_Y]; 569 yv12->uv_stride = img->stride[VPX_PLANE_U]; 570 571 yv12->border = (img->stride[VPX_PLANE_Y] - img->d_w) / 2; 572 yv12->clrtype = (img->fmt == VPX_IMG_FMT_VPXI420 || img->fmt == VPX_IMG_FMT_VPXYV12); 573 574 return res; 575 } 576 577 578 static vpx_codec_err_t vp8_set_reference(vpx_codec_alg_priv_t *ctx, 579 int ctr_id, 580 va_list args) 581 { 582 583 vpx_ref_frame_t *data = va_arg(args, vpx_ref_frame_t *); 584 585 if (data) 586 { 587 vpx_ref_frame_t *frame = (vpx_ref_frame_t *)data; 588 YV12_BUFFER_CONFIG sd; 589 590 image2yuvconfig(&frame->img, &sd); 591 592 vp8dx_set_reference(ctx->pbi, frame->frame_type, &sd); 593 return VPX_CODEC_OK; 594 } 595 else 596 return VPX_CODEC_INVALID_PARAM; 597 598 } 599 600 static vpx_codec_err_t vp8_get_reference(vpx_codec_alg_priv_t *ctx, 601 int ctr_id, 602 va_list args) 603 { 604 605 vpx_ref_frame_t *data = va_arg(args, vpx_ref_frame_t *); 606 607 if (data) 608 { 609 vpx_ref_frame_t *frame = (vpx_ref_frame_t *)data; 610 YV12_BUFFER_CONFIG sd; 611 612 image2yuvconfig(&frame->img, &sd); 613 614 vp8dx_get_reference(ctx->pbi, frame->frame_type, &sd); 615 return VPX_CODEC_OK; 616 } 617 else 618 return VPX_CODEC_INVALID_PARAM; 619 620 } 621 622 static vpx_codec_err_t vp8_set_postproc(vpx_codec_alg_priv_t *ctx, 623 int ctr_id, 624 va_list args) 625 { 626 vp8_postproc_cfg_t *data = va_arg(args, vp8_postproc_cfg_t *); 627 #if CONFIG_POSTPROC 628 629 if (data) 630 { 631 ctx->postproc_cfg_set = 1; 632 ctx->postproc_cfg = *((vp8_postproc_cfg_t *)data); 633 return VPX_CODEC_OK; 634 } 635 else 636 return VPX_CODEC_INVALID_PARAM; 637 638 #else 639 return VPX_CODEC_INCAPABLE; 640 #endif 641 } 642 643 644 vpx_codec_ctrl_fn_map_t vp8_ctf_maps[] = 645 { 646 {VP8_SET_REFERENCE, vp8_set_reference}, 647 {VP8_COPY_REFERENCE, vp8_get_reference}, 648 {VP8_SET_POSTPROC, vp8_set_postproc}, 649 { -1, NULL}, 650 }; 651 652 653 #ifndef VERSION_STRING 654 #define VERSION_STRING 655 #endif 656 vpx_codec_iface_t vpx_codec_vp8_dx_algo = 657 { 658 "WebM Project VP8 Decoder" VERSION_STRING, 659 VPX_CODEC_INTERNAL_ABI_VERSION, 660 VPX_CODEC_CAP_DECODER | VP8_CAP_POSTPROC, 661 /* vpx_codec_caps_t caps; */ 662 vp8_init, /* vpx_codec_init_fn_t init; */ 663 vp8_destroy, /* vpx_codec_destroy_fn_t destroy; */ 664 vp8_ctf_maps, /* vpx_codec_ctrl_fn_map_t *ctrl_maps; */ 665 vp8_xma_get_mmap, /* vpx_codec_get_mmap_fn_t get_mmap; */ 666 vp8_xma_set_mmap, /* vpx_codec_set_mmap_fn_t set_mmap; */ 667 { 668 vp8_peek_si, /* vpx_codec_peek_si_fn_t peek_si; */ 669 vp8_get_si, /* vpx_codec_get_si_fn_t get_si; */ 670 vp8_decode, /* vpx_codec_decode_fn_t decode; */ 671 vp8_get_frame, /* vpx_codec_frame_get_fn_t frame_get; */ 672 }, 673 {NOT_IMPLEMENTED} /* encoder functions */ 674 }; 675 676 /* 677 * BEGIN BACKWARDS COMPATIBILITY SHIM. 678 */ 679 vpx_codec_iface_t vpx_codec_vp8_algo = 680 { 681 "WebM Project VP8 Decoder (Deprecated API)" VERSION_STRING, 682 VPX_CODEC_INTERNAL_ABI_VERSION, 683 VPX_CODEC_CAP_DECODER | VP8_CAP_POSTPROC, 684 /* vpx_codec_caps_t caps; */ 685 vp8_init, /* vpx_codec_init_fn_t init; */ 686 vp8_destroy, /* vpx_codec_destroy_fn_t destroy; */ 687 vp8_ctf_maps, /* vpx_codec_ctrl_fn_map_t *ctrl_maps; */ 688 vp8_xma_get_mmap, /* vpx_codec_get_mmap_fn_t get_mmap; */ 689 vp8_xma_set_mmap, /* vpx_codec_set_mmap_fn_t set_mmap; */ 690 { 691 vp8_peek_si, /* vpx_codec_peek_si_fn_t peek_si; */ 692 vp8_get_si, /* vpx_codec_get_si_fn_t get_si; */ 693 vp8_decode, /* vpx_codec_decode_fn_t decode; */ 694 vp8_get_frame, /* vpx_codec_frame_get_fn_t frame_get; */ 695 }, 696 {NOT_IMPLEMENTED} /* encoder functions */ 697 }; 698
