vp8/vp8_dx_iface.c

   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 CODEC_INTERFACE(vpx_codec_vp8_dx) =
 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 };