vp9_dx_iface.c 21.7 KB
Newer Older
John Koleszar's avatar
John Koleszar committed
1
/*
2
 *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
John Koleszar's avatar
John Koleszar committed
3
 *
4
 *  Use of this source code is governed by a BSD-style license
5
6
 *  that can be found in the LICENSE file in the root of the source
 *  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.
John Koleszar's avatar
John Koleszar committed
9
10
11
12
13
 */


#include <stdlib.h>
#include <string.h>
14
15
16
#include "vpx/vpx_decoder.h"
#include "vpx/vp8dx.h"
#include "vpx/internal/vpx_codec_internal.h"
John Koleszar's avatar
John Koleszar committed
17
#include "vpx_version.h"
18
#include "decoder/vp9_onyxd.h"
19
#include "decoder/vp9_onyxd_int.h"
John Koleszar's avatar
John Koleszar committed
20
#include "vp9/vp9_iface_common.h"
John Koleszar's avatar
John Koleszar committed
21
22
23
24
25

#define VP8_CAP_POSTPROC (CONFIG_POSTPROC ? VPX_CODEC_CAP_POSTPROC : 0)
typedef vpx_codec_stream_info_t  vp8_stream_info_t;

/* Structures for handling memory allocations */
John Koleszar's avatar
John Koleszar committed
26
27
28
typedef enum {
  VP8_SEG_ALG_PRIV     = 256,
  VP8_SEG_MAX
John Koleszar's avatar
John Koleszar committed
29
} mem_seg_id_t;
30
#define NELEMENTS(x) ((int)(sizeof(x)/sizeof(x[0])))
John Koleszar's avatar
John Koleszar committed
31
32
33

static unsigned long vp8_priv_sz(const vpx_codec_dec_cfg_t *si, vpx_codec_flags_t);

John Koleszar's avatar
John Koleszar committed
34
35
36
37
38
39
typedef struct {
  unsigned int   id;
  unsigned long  sz;
  unsigned int   align;
  unsigned int   flags;
  unsigned long(*calc_sz)(const vpx_codec_dec_cfg_t *, vpx_codec_flags_t);
John Koleszar's avatar
John Koleszar committed
40
41
} mem_req_t;

John Koleszar's avatar
John Koleszar committed
42
43
44
static const mem_req_t vp8_mem_req_segs[] = {
  {VP8_SEG_ALG_PRIV,    0, 8, VPX_CODEC_MEM_ZERO, vp8_priv_sz},
  {VP8_SEG_MAX, 0, 0, 0, NULL}
John Koleszar's avatar
John Koleszar committed
45
46
};

John Koleszar's avatar
John Koleszar committed
47
48
49
50
51
52
53
struct vpx_codec_alg_priv {
  vpx_codec_priv_t        base;
  vpx_codec_mmap_t        mmaps[NELEMENTS(vp8_mem_req_segs) - 1];
  vpx_codec_dec_cfg_t     cfg;
  vp8_stream_info_t       si;
  int                     defer_alloc;
  int                     decoder_init;
54
  VP9D_PTR                pbi;
John Koleszar's avatar
John Koleszar committed
55
56
  int                     postproc_cfg_set;
  vp8_postproc_cfg_t      postproc_cfg;
57
#if CONFIG_POSTPROC_VISUALIZER
John Koleszar's avatar
John Koleszar committed
58
59
60
61
62
  unsigned int            dbg_postproc_flag;
  int                     dbg_color_ref_frame_flag;
  int                     dbg_color_mb_modes_flag;
  int                     dbg_color_b_modes_flag;
  int                     dbg_display_mv_flag;
63
#endif
John Koleszar's avatar
John Koleszar committed
64
65
66
  vpx_image_t             img;
  int                     img_setup;
  int                     img_avail;
67
  int                     invert_tile_order;
John Koleszar's avatar
John Koleszar committed
68
69
};

70
71
static unsigned long vp8_priv_sz(const vpx_codec_dec_cfg_t *si,
                                 vpx_codec_flags_t flags) {
John Koleszar's avatar
John Koleszar committed
72
73
74
75
76
77
78
  /* Although this declaration is constant, we can't use it in the requested
   * segments list because we want to define the requested segments list
   * before defining the private type (so that the number of memory maps is
   * known)
   */
  (void)si;
  return sizeof(vpx_codec_alg_priv_t);
John Koleszar's avatar
John Koleszar committed
79
80
81
}


John Koleszar's avatar
John Koleszar committed
82
83
static void vp8_mmap_dtor(vpx_codec_mmap_t *mmap) {
  free(mmap->priv);
John Koleszar's avatar
John Koleszar committed
84
85
}

John Koleszar's avatar
John Koleszar committed
86
87
88
static vpx_codec_err_t vp8_mmap_alloc(vpx_codec_mmap_t *mmap) {
  vpx_codec_err_t  res;
  unsigned int   align;
John Koleszar's avatar
John Koleszar committed
89

John Koleszar's avatar
John Koleszar committed
90
  align = mmap->align ? mmap->align - 1 : 0;
John Koleszar's avatar
John Koleszar committed
91

John Koleszar's avatar
John Koleszar committed
92
93
94
95
  if (mmap->flags & VPX_CODEC_MEM_ZERO)
    mmap->priv = calloc(1, mmap->sz + align);
  else
    mmap->priv = malloc(mmap->sz + align);
John Koleszar's avatar
John Koleszar committed
96

John Koleszar's avatar
John Koleszar committed
97
98
99
100
  res = (mmap->priv) ? VPX_CODEC_OK : VPX_CODEC_MEM_ERROR;
  mmap->base = (void *)((((uintptr_t)mmap->priv) + align) & ~(uintptr_t)align);
  mmap->dtor = vp8_mmap_dtor;
  return res;
John Koleszar's avatar
John Koleszar committed
101
102
103
}

static vpx_codec_err_t vp8_validate_mmaps(const vp8_stream_info_t *si,
104
105
                                          const vpx_codec_mmap_t *mmaps,
                                          vpx_codec_flags_t init_flags) {
John Koleszar's avatar
John Koleszar committed
106
107
108
109
110
111
112
113
114
  int i;
  vpx_codec_err_t res = VPX_CODEC_OK;

  for (i = 0; i < NELEMENTS(vp8_mem_req_segs) - 1; i++) {
    /* Ensure the segment has been allocated */
    if (!mmaps[i].base) {
      res = VPX_CODEC_MEM_ERROR;
      break;
    }
John Koleszar's avatar
John Koleszar committed
115

John Koleszar's avatar
John Koleszar committed
116
117
118
    /* Verify variable size segment is big enough for the current si. */
    if (vp8_mem_req_segs[i].calc_sz) {
      vpx_codec_dec_cfg_t cfg;
John Koleszar's avatar
John Koleszar committed
119

John Koleszar's avatar
John Koleszar committed
120
121
      cfg.w = si->w;
      cfg.h = si->h;
John Koleszar's avatar
John Koleszar committed
122

John Koleszar's avatar
John Koleszar committed
123
124
125
126
      if (mmaps[i].sz < vp8_mem_req_segs[i].calc_sz(&cfg, init_flags)) {
        res = VPX_CODEC_MEM_ERROR;
        break;
      }
John Koleszar's avatar
John Koleszar committed
127
    }
John Koleszar's avatar
John Koleszar committed
128
  }
John Koleszar's avatar
John Koleszar committed
129

John Koleszar's avatar
John Koleszar committed
130
  return res;
John Koleszar's avatar
John Koleszar committed
131
132
}

John Koleszar's avatar
John Koleszar committed
133
134
static void vp8_init_ctx(vpx_codec_ctx_t *ctx, const vpx_codec_mmap_t *mmap) {
  int i;
John Koleszar's avatar
John Koleszar committed
135

John Koleszar's avatar
John Koleszar committed
136
137
138
139
  ctx->priv = mmap->base;
  ctx->priv->sz = sizeof(*ctx->priv);
  ctx->priv->iface = ctx->iface;
  ctx->priv->alg_priv = mmap->base;
John Koleszar's avatar
John Koleszar committed
140

John Koleszar's avatar
John Koleszar committed
141
142
  for (i = 0; i < NELEMENTS(ctx->priv->alg_priv->mmaps); i++)
    ctx->priv->alg_priv->mmaps[i].id = vp8_mem_req_segs[i].id;
John Koleszar's avatar
John Koleszar committed
143

John Koleszar's avatar
John Koleszar committed
144
145
146
  ctx->priv->alg_priv->mmaps[0] = *mmap;
  ctx->priv->alg_priv->si.sz = sizeof(ctx->priv->alg_priv->si);
  ctx->priv->init_flags = ctx->init_flags;
John Koleszar's avatar
John Koleszar committed
147

John Koleszar's avatar
John Koleszar committed
148
149
150
151
152
  if (ctx->config.dec) {
    /* Update the reference to the config structure to an internal copy. */
    ctx->priv->alg_priv->cfg = *ctx->config.dec;
    ctx->config.dec = &ctx->priv->alg_priv->cfg;
  }
John Koleszar's avatar
John Koleszar committed
153
154
}

John Koleszar's avatar
John Koleszar committed
155
156
static void *mmap_lkup(vpx_codec_alg_priv_t *ctx, unsigned int id) {
  int i;
John Koleszar's avatar
John Koleszar committed
157

John Koleszar's avatar
John Koleszar committed
158
159
160
  for (i = 0; i < NELEMENTS(ctx->mmaps); i++)
    if (ctx->mmaps[i].id == id)
      return ctx->mmaps[i].base;
John Koleszar's avatar
John Koleszar committed
161

John Koleszar's avatar
John Koleszar committed
162
  return NULL;
John Koleszar's avatar
John Koleszar committed
163
}
John Koleszar's avatar
John Koleszar committed
164
165
static void vp8_finalize_mmaps(vpx_codec_alg_priv_t *ctx) {
  /* nothing to clean up */
John Koleszar's avatar
John Koleszar committed
166
167
}

John Koleszar's avatar
John Koleszar committed
168
169
static vpx_codec_err_t vp8_init(vpx_codec_ctx_t *ctx,
                                vpx_codec_priv_enc_mr_cfg_t *data) {
John Koleszar's avatar
John Koleszar committed
170
  vpx_codec_err_t        res = VPX_CODEC_OK;
John Koleszar's avatar
John Koleszar committed
171

John Koleszar's avatar
John Koleszar committed
172
173
174
175
176
177
  /* This function only allocates space for the vpx_codec_alg_priv_t
   * structure. More memory may be required at the time the stream
   * information becomes known.
   */
  if (!ctx->priv) {
    vpx_codec_mmap_t mmap;
John Koleszar's avatar
John Koleszar committed
178

John Koleszar's avatar
John Koleszar committed
179
180
181
182
    mmap.id = vp8_mem_req_segs[0].id;
    mmap.sz = sizeof(vpx_codec_alg_priv_t);
    mmap.align = vp8_mem_req_segs[0].align;
    mmap.flags = vp8_mem_req_segs[0].flags;
John Koleszar's avatar
John Koleszar committed
183

John Koleszar's avatar
John Koleszar committed
184
    res = vp8_mmap_alloc(&mmap);
John Koleszar's avatar
John Koleszar committed
185

John Koleszar's avatar
John Koleszar committed
186
187
    if (!res) {
      vp8_init_ctx(ctx, &mmap);
John Koleszar's avatar
John Koleszar committed
188

John Koleszar's avatar
John Koleszar committed
189
190
      ctx->priv->alg_priv->defer_alloc = 1;
      /*post processing level initialized to do nothing */
John Koleszar's avatar
John Koleszar committed
191
    }
John Koleszar's avatar
John Koleszar committed
192
  }
John Koleszar's avatar
John Koleszar committed
193

John Koleszar's avatar
John Koleszar committed
194
  return res;
John Koleszar's avatar
John Koleszar committed
195
196
}

John Koleszar's avatar
John Koleszar committed
197
198
static vpx_codec_err_t vp8_destroy(vpx_codec_alg_priv_t *ctx) {
  int i;
John Koleszar's avatar
John Koleszar committed
199

200
  vp9_remove_decompressor(ctx->pbi);
John Koleszar's avatar
John Koleszar committed
201

John Koleszar's avatar
John Koleszar committed
202
203
204
205
  for (i = NELEMENTS(ctx->mmaps) - 1; i >= 0; i--) {
    if (ctx->mmaps[i].dtor)
      ctx->mmaps[i].dtor(&ctx->mmaps[i]);
  }
John Koleszar's avatar
John Koleszar committed
206

John Koleszar's avatar
John Koleszar committed
207
  return VPX_CODEC_OK;
John Koleszar's avatar
John Koleszar committed
208
209
210
211
}

static vpx_codec_err_t vp8_peek_si(const uint8_t         *data,
                                   unsigned int           data_sz,
John Koleszar's avatar
John Koleszar committed
212
213
214
                                   vpx_codec_stream_info_t *si) {
  vpx_codec_err_t res = VPX_CODEC_OK;

James Zern's avatar
James Zern committed
215
  if (data_sz <= 8) return VPX_CODEC_UNSUP_BITSTREAM;
John Koleszar's avatar
John Koleszar committed
216

James Zern's avatar
James Zern committed
217
218
219
220
221
222
223
224
225
226
  if (data + data_sz <= data) {
    res = VPX_CODEC_INVALID_PARAM;
  } else {
    const int frame_marker = (data[0] >> 6) & 0x3;
    const int version = (data[0] >> 4) & 0x3;
    if (frame_marker != 0x2) return VPX_CODEC_UNSUP_BITSTREAM;
    if (version != 0) return VPX_CODEC_UNSUP_BITSTREAM;

    si->is_kf = !((data[0] >> 2) & 0x1);
    if (si->is_kf) {
227
      const uint8_t *c = data + 1;
John Koleszar's avatar
John Koleszar committed
228

229
      if (c[0] != SYNC_CODE_0 || c[1] != SYNC_CODE_1 || c[2] != SYNC_CODE_2)
James Zern's avatar
James Zern committed
230
        return VPX_CODEC_UNSUP_BITSTREAM;
John Koleszar's avatar
John Koleszar committed
231

James Zern's avatar
James Zern committed
232
233
234
235
      c += 3;
      si->w = (((c[0] & 0xf) << 12) | (c[1] << 4) | ((c[2] >> 4) & 0xf)) + 1;
      si->h = (((c[2] & 0xf) << 12) | (c[3] << 4) | ((c[4] >> 4) & 0xf)) + 1;
    }
John Koleszar's avatar
John Koleszar committed
236
237
238
  }

  return res;
John Koleszar's avatar
John Koleszar committed
239
240
241
}

static vpx_codec_err_t vp8_get_si(vpx_codec_alg_priv_t    *ctx,
John Koleszar's avatar
John Koleszar committed
242
                                  vpx_codec_stream_info_t *si) {
John Koleszar's avatar
John Koleszar committed
243

John Koleszar's avatar
John Koleszar committed
244
  unsigned int sz;
John Koleszar's avatar
John Koleszar committed
245

John Koleszar's avatar
John Koleszar committed
246
247
248
249
  if (si->sz >= sizeof(vp8_stream_info_t))
    sz = sizeof(vp8_stream_info_t);
  else
    sz = sizeof(vpx_codec_stream_info_t);
John Koleszar's avatar
John Koleszar committed
250

John Koleszar's avatar
John Koleszar committed
251
252
  memcpy(si, &ctx->si, sz);
  si->sz = sz;
John Koleszar's avatar
John Koleszar committed
253

John Koleszar's avatar
John Koleszar committed
254
  return VPX_CODEC_OK;
John Koleszar's avatar
John Koleszar committed
255
256
257
258
259
}


static vpx_codec_err_t
update_error_state(vpx_codec_alg_priv_t                 *ctx,
John Koleszar's avatar
John Koleszar committed
260
261
                   const struct vpx_internal_error_info *error) {
  vpx_codec_err_t res;
John Koleszar's avatar
John Koleszar committed
262

John Koleszar's avatar
John Koleszar committed
263
264
265
266
  if ((res = error->error_code))
    ctx->base.err_detail = error->has_detail
                           ? error->detail
                           : NULL;
John Koleszar's avatar
John Koleszar committed
267

John Koleszar's avatar
John Koleszar committed
268
  return res;
John Koleszar's avatar
John Koleszar committed
269
270
}

271
272
273
274
275
static vpx_codec_err_t decode_one(vpx_codec_alg_priv_t  *ctx,
                                  const uint8_t        **data,
                                  unsigned int           data_sz,
                                  void                  *user_priv,
                                  long                   deadline) {
John Koleszar's avatar
John Koleszar committed
276
  vpx_codec_err_t res = VPX_CODEC_OK;
John Koleszar's avatar
John Koleszar committed
277

John Koleszar's avatar
John Koleszar committed
278
  ctx->img_avail = 0;
John Koleszar's avatar
John Koleszar committed
279

John Koleszar's avatar
John Koleszar committed
280
281
282
283
284
  /* Determine the stream parameters. Note that we rely on peek_si to
   * validate that we have a buffer that does not wrap around the top
   * of the heap.
   */
  if (!ctx->si.h)
285
    res = ctx->base.iface->dec.peek_si(*data, data_sz, &ctx->si);
John Koleszar's avatar
John Koleszar committed
286
287


John Koleszar's avatar
John Koleszar committed
288
289
290
  /* Perform deferred allocations, if required */
  if (!res && ctx->defer_alloc) {
    int i;
John Koleszar's avatar
John Koleszar committed
291

John Koleszar's avatar
John Koleszar committed
292
293
    for (i = 1; !res && i < NELEMENTS(ctx->mmaps); i++) {
      vpx_codec_dec_cfg_t cfg;
John Koleszar's avatar
John Koleszar committed
294

John Koleszar's avatar
John Koleszar committed
295
296
297
298
299
300
      cfg.w = ctx->si.w;
      cfg.h = ctx->si.h;
      ctx->mmaps[i].id = vp8_mem_req_segs[i].id;
      ctx->mmaps[i].sz = vp8_mem_req_segs[i].sz;
      ctx->mmaps[i].align = vp8_mem_req_segs[i].align;
      ctx->mmaps[i].flags = vp8_mem_req_segs[i].flags;
John Koleszar's avatar
John Koleszar committed
301

John Koleszar's avatar
John Koleszar committed
302
303
304
      if (!ctx->mmaps[i].sz)
        ctx->mmaps[i].sz = vp8_mem_req_segs[i].calc_sz(&cfg,
                                                       ctx->base.init_flags);
John Koleszar's avatar
John Koleszar committed
305

John Koleszar's avatar
John Koleszar committed
306
      res = vp8_mmap_alloc(&ctx->mmaps[i]);
John Koleszar's avatar
John Koleszar committed
307
308
    }

John Koleszar's avatar
John Koleszar committed
309
310
311
312
313
314
315
316
317
318
319
    if (!res)
      vp8_finalize_mmaps(ctx);

    ctx->defer_alloc = 0;
  }

  /* Initialize the decoder instance on the first frame*/
  if (!res && !ctx->decoder_init) {
    res = vp8_validate_mmaps(&ctx->si, ctx->mmaps, ctx->base.init_flags);

    if (!res) {
320
321
      VP9D_CONFIG oxcf;
      VP9D_PTR optr;
John Koleszar's avatar
John Koleszar committed
322

323
      vp9_initialize_dec();
John Koleszar's avatar
John Koleszar committed
324

325
326
327
      oxcf.width = ctx->si.w;
      oxcf.height = ctx->si.h;
      oxcf.version = 9;
John Koleszar's avatar
John Koleszar committed
328
329
      oxcf.postprocess = 0;
      oxcf.max_threads = ctx->cfg.threads;
330
      oxcf.inv_tile_order = ctx->invert_tile_order;
331
      optr = vp9_create_decompressor(&oxcf);
John Koleszar's avatar
John Koleszar committed
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347

      /* If postprocessing was enabled by the application and a
       * configuration has not been provided, default it.
       */
      if (!ctx->postproc_cfg_set
          && (ctx->base.init_flags & VPX_CODEC_USE_POSTPROC)) {
        ctx->postproc_cfg.post_proc_flag =
          VP8_DEBLOCK | VP8_DEMACROBLOCK;
        ctx->postproc_cfg.deblocking_level = 4;
        ctx->postproc_cfg.noise_level = 0;
      }

      if (!optr)
        res = VPX_CODEC_ERROR;
      else
        ctx->pbi = optr;
John Koleszar's avatar
John Koleszar committed
348
349
    }

John Koleszar's avatar
John Koleszar committed
350
351
352
353
354
355
    ctx->decoder_init = 1;
  }

  if (!res && ctx->pbi) {
    YV12_BUFFER_CONFIG sd;
    int64_t time_stamp = 0, time_end_stamp = 0;
356
    vp9_ppflags_t flags = {0};
John Koleszar's avatar
John Koleszar committed
357

John Koleszar's avatar
John Koleszar committed
358
359
    if (ctx->base.init_flags & VPX_CODEC_USE_POSTPROC) {
      flags.post_proc_flag = ctx->postproc_cfg.post_proc_flag
360
361
#if CONFIG_POSTPROC_VISUALIZER

362
363
364
365
                             | ((ctx->dbg_color_ref_frame_flag != 0) ? VP9D_DEBUG_CLR_FRM_REF_BLKS : 0)
                             | ((ctx->dbg_color_mb_modes_flag != 0) ? VP9D_DEBUG_CLR_BLK_MODES : 0)
                             | ((ctx->dbg_color_b_modes_flag != 0) ? VP9D_DEBUG_CLR_BLK_MODES : 0)
                             | ((ctx->dbg_display_mv_flag != 0) ? VP9D_DEBUG_DRAW_MV : 0)
366
#endif
John Koleszar's avatar
John Koleszar committed
367
368
369
;
      flags.deblocking_level      = ctx->postproc_cfg.deblocking_level;
      flags.noise_level           = ctx->postproc_cfg.noise_level;
370
#if CONFIG_POSTPROC_VISUALIZER
John Koleszar's avatar
John Koleszar committed
371
372
373
374
      flags.display_ref_frame_flag = ctx->dbg_color_ref_frame_flag;
      flags.display_mb_modes_flag = ctx->dbg_color_mb_modes_flag;
      flags.display_b_modes_flag  = ctx->dbg_color_b_modes_flag;
      flags.display_mv_flag       = ctx->dbg_display_mv_flag;
375
#endif
John Koleszar's avatar
John Koleszar committed
376
    }
John Koleszar's avatar
John Koleszar committed
377

378
    if (vp9_receive_compressed_data(ctx->pbi, data_sz, data, deadline)) {
379
      VP9D_COMP *pbi = (VP9D_COMP *)ctx->pbi;
John Koleszar's avatar
John Koleszar committed
380
381
      res = update_error_state(ctx, &pbi->common.error);
    }
John Koleszar's avatar
John Koleszar committed
382

383
384
    if (!res && 0 == vp9_get_raw_frame(ctx->pbi, &sd, &time_stamp,
                                       &time_end_stamp, &flags)) {
John Koleszar's avatar
John Koleszar committed
385
386
      yuvconfig2image(&ctx->img, &sd, user_priv);
      ctx->img_avail = 1;
John Koleszar's avatar
John Koleszar committed
387
    }
John Koleszar's avatar
John Koleszar committed
388
  }
John Koleszar's avatar
John Koleszar committed
389

John Koleszar's avatar
John Koleszar committed
390
  return res;
John Koleszar's avatar
John Koleszar committed
391
392
}

John Koleszar's avatar
John Koleszar committed
393
394
395
396
397
398
399
400
401
402
static void parse_superframe_index(const uint8_t *data,
                                   size_t         data_sz,
                                   uint32_t       sizes[8],
                                   int           *count) {
  uint8_t marker;

  assert(data_sz);
  marker = data[data_sz - 1];
  *count = 0;

403
  if ((marker & 0xe0) == 0xc0) {
Johann's avatar
Johann committed
404
405
406
    const uint32_t frames = (marker & 0x7) + 1;
    const uint32_t mag = ((marker >> 3) & 0x3) + 1;
    const size_t index_sz = 2 + mag * frames;
John Koleszar's avatar
John Koleszar committed
407
408
409

    if (data_sz >= index_sz && data[data_sz - index_sz] == marker) {
      // found a valid superframe index
Johann's avatar
Johann committed
410
      uint32_t i, j;
John Koleszar's avatar
John Koleszar committed
411
412
413
      const uint8_t *x = data + data_sz - index_sz + 1;

      for (i = 0; i < frames; i++) {
Johann's avatar
Johann committed
414
        uint32_t this_sz = 0;
John Koleszar's avatar
John Koleszar committed
415
416
417
418
419
420
421
422
423
424
425

        for (j = 0; j < mag; j++)
          this_sz |= (*x++) << (j * 8);
        sizes[i] = this_sz;
      }

      *count = frames;
    }
  }
}

426
427
428
429
430
431
432
static vpx_codec_err_t vp9_decode(vpx_codec_alg_priv_t  *ctx,
                                  const uint8_t         *data,
                                  unsigned int           data_sz,
                                  void                  *user_priv,
                                  long                   deadline) {
  const uint8_t *data_start = data;
  const uint8_t *data_end = data + data_sz;
433
  vpx_codec_err_t res = 0;
John Koleszar's avatar
John Koleszar committed
434
435
436
437
  uint32_t sizes[8];
  int frames_this_pts, frame_count = 0;

  parse_superframe_index(data, data_sz, sizes, &frames_this_pts);
438
439

  do {
John Koleszar's avatar
John Koleszar committed
440
    // Skip over the superframe index, if present
441
    if (data_sz && (*data_start & 0xe0) == 0xc0) {
John Koleszar's avatar
John Koleszar committed
442
      const uint8_t marker = *data_start;
Johann's avatar
Johann committed
443
444
445
      const uint32_t frames = (marker & 0x7) + 1;
      const uint32_t mag = ((marker >> 3) & 0x3) + 1;
      const uint32_t index_sz = 2 + mag * frames;
John Koleszar's avatar
John Koleszar committed
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469

      if (data_sz >= index_sz && data_start[index_sz - 1] == marker) {
        data_start += index_sz;
        data_sz -= index_sz;
        if (data_start < data_end)
          continue;
        else
          break;
      }
    }

    // Use the correct size for this frame, if an index is present.
    if (frames_this_pts) {
      uint32_t this_sz = sizes[frame_count];

      if (data_sz < this_sz) {
        ctx->base.err_detail = "Invalid frame size in index";
        return VPX_CODEC_CORRUPT_FRAME;
      }

      data_sz = this_sz;
      frame_count++;
    }

470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
    res = decode_one(ctx, &data_start, data_sz, user_priv, deadline);
    assert(data_start >= data);
    assert(data_start <= data_end);

    /* Early exit if there was a decode error */
    if (res)
      break;

    /* Account for suboptimal termination by the encoder. */
    while (data_start < data_end && *data_start == 0)
      data_start++;

    data_sz = data_end - data_start;
  } while (data_start < data_end);
  return res;
}

John Koleszar's avatar
John Koleszar committed
487
static vpx_image_t *vp8_get_frame(vpx_codec_alg_priv_t  *ctx,
John Koleszar's avatar
John Koleszar committed
488
489
490
491
492
493
494
495
496
497
                                  vpx_codec_iter_t      *iter) {
  vpx_image_t *img = NULL;

  if (ctx->img_avail) {
    /* iter acts as a flip flop, so an image is only returned on the first
     * call to get_frame.
     */
    if (!(*iter)) {
      img = &ctx->img;
      *iter = img;
John Koleszar's avatar
John Koleszar committed
498
    }
John Koleszar's avatar
John Koleszar committed
499
  }
500
  ctx->img_avail = 0;
John Koleszar's avatar
John Koleszar committed
501

John Koleszar's avatar
John Koleszar committed
502
  return img;
John Koleszar's avatar
John Koleszar committed
503
504
505
506
507
508
}


static
vpx_codec_err_t vp8_xma_get_mmap(const vpx_codec_ctx_t      *ctx,
                                 vpx_codec_mmap_t           *mmap,
John Koleszar's avatar
John Koleszar committed
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
                                 vpx_codec_iter_t           *iter) {
  vpx_codec_err_t     res;
  const mem_req_t  *seg_iter = *iter;

  /* Get address of next segment request */
  do {
    if (!seg_iter)
      seg_iter = vp8_mem_req_segs;
    else if (seg_iter->id != VP8_SEG_MAX)
      seg_iter++;

    *iter = (vpx_codec_iter_t)seg_iter;

    if (seg_iter->id != VP8_SEG_MAX) {
      mmap->id = seg_iter->id;
      mmap->sz = seg_iter->sz;
      mmap->align = seg_iter->align;
      mmap->flags = seg_iter->flags;

      if (!seg_iter->sz)
        mmap->sz = seg_iter->calc_sz(ctx->config.dec, ctx->init_flags);

      res = VPX_CODEC_OK;
    } else
      res = VPX_CODEC_LIST_END;
  } while (!mmap->sz && res != VPX_CODEC_LIST_END);

  return res;
John Koleszar's avatar
John Koleszar committed
537
538
539
}

static vpx_codec_err_t vp8_xma_set_mmap(vpx_codec_ctx_t         *ctx,
John Koleszar's avatar
John Koleszar committed
540
541
542
543
544
545
546
547
548
549
                                        const vpx_codec_mmap_t  *mmap) {
  vpx_codec_err_t res = VPX_CODEC_MEM_ERROR;
  int i, done;

  if (!ctx->priv) {
    if (mmap->id == VP8_SEG_ALG_PRIV) {
      if (!ctx->priv) {
        vp8_init_ctx(ctx, mmap);
        res = VPX_CODEC_OK;
      }
John Koleszar's avatar
John Koleszar committed
550
    }
John Koleszar's avatar
John Koleszar committed
551
  }
John Koleszar's avatar
John Koleszar committed
552

John Koleszar's avatar
John Koleszar committed
553
  done = 1;
John Koleszar's avatar
John Koleszar committed
554

John Koleszar's avatar
John Koleszar committed
555
556
557
558
559
560
  if (!res && ctx->priv->alg_priv) {
    for (i = 0; i < NELEMENTS(ctx->priv->alg_priv->mmaps); i++) {
      if (ctx->priv->alg_priv->mmaps[i].id == mmap->id)
        if (!ctx->priv->alg_priv->mmaps[i].base) {
          ctx->priv->alg_priv->mmaps[i] = *mmap;
          res = VPX_CODEC_OK;
John Koleszar's avatar
John Koleszar committed
561
562
        }

John Koleszar's avatar
John Koleszar committed
563
      done &= (ctx->priv->alg_priv->mmaps[i].base != NULL);
John Koleszar's avatar
John Koleszar committed
564
    }
John Koleszar's avatar
John Koleszar committed
565
566
567
568
  }

  if (done && !res) {
    vp8_finalize_mmaps(ctx->priv->alg_priv);
John Koleszar's avatar
John Koleszar committed
569
    res = ctx->iface->init(ctx, NULL);
John Koleszar's avatar
John Koleszar committed
570
  }
John Koleszar's avatar
John Koleszar committed
571

John Koleszar's avatar
John Koleszar committed
572
  return res;
John Koleszar's avatar
John Koleszar committed
573
574
575
}


576
static vpx_codec_err_t vp9_set_reference(vpx_codec_alg_priv_t *ctx,
John Koleszar's avatar
John Koleszar committed
577
578
                                         int ctr_id,
                                         va_list args) {
John Koleszar's avatar
John Koleszar committed
579

John Koleszar's avatar
John Koleszar committed
580
  vpx_ref_frame_t *data = va_arg(args, vpx_ref_frame_t *);
John Koleszar's avatar
John Koleszar committed
581

John Koleszar's avatar
John Koleszar committed
582
583
584
  if (data) {
    vpx_ref_frame_t *frame = (vpx_ref_frame_t *)data;
    YV12_BUFFER_CONFIG sd;
John Koleszar's avatar
John Koleszar committed
585

John Koleszar's avatar
John Koleszar committed
586
    image2yuvconfig(&frame->img, &sd);
John Koleszar's avatar
John Koleszar committed
587

588
589
    return vp9_set_reference_dec(ctx->pbi,
                                 (VP9_REFFRAME)frame->frame_type, &sd);
John Koleszar's avatar
John Koleszar committed
590
591
  } else
    return VPX_CODEC_INVALID_PARAM;
John Koleszar's avatar
John Koleszar committed
592
593
594

}

John Koleszar's avatar
John Koleszar committed
595
596
597
static vpx_codec_err_t vp9_copy_reference(vpx_codec_alg_priv_t *ctx,
                                          int ctr_id,
                                          va_list args) {
John Koleszar's avatar
John Koleszar committed
598

John Koleszar's avatar
John Koleszar committed
599
  vpx_ref_frame_t *data = va_arg(args, vpx_ref_frame_t *);
John Koleszar's avatar
John Koleszar committed
600

John Koleszar's avatar
John Koleszar committed
601
602
603
  if (data) {
    vpx_ref_frame_t *frame = (vpx_ref_frame_t *)data;
    YV12_BUFFER_CONFIG sd;
John Koleszar's avatar
John Koleszar committed
604

John Koleszar's avatar
John Koleszar committed
605
    image2yuvconfig(&frame->img, &sd);
John Koleszar's avatar
John Koleszar committed
606

John Koleszar's avatar
John Koleszar committed
607
608
    return vp9_copy_reference_dec(ctx->pbi,
                                  (VP9_REFFRAME)frame->frame_type, &sd);
John Koleszar's avatar
John Koleszar committed
609
610
  } else
    return VPX_CODEC_INVALID_PARAM;
John Koleszar's avatar
John Koleszar committed
611
612
613

}

John Koleszar's avatar
John Koleszar committed
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
static vpx_codec_err_t get_reference(vpx_codec_alg_priv_t *ctx,
                                     int ctr_id,
                                     va_list args) {
  vp9_ref_frame_t *data = va_arg(args, vp9_ref_frame_t *);

  if (data) {
    YV12_BUFFER_CONFIG* fb;

    vp9_get_reference_dec(ctx->pbi, data->idx, &fb);
    yuvconfig2image(&data->img, fb, NULL);
    return VPX_CODEC_OK;
  } else {
    return VPX_CODEC_INVALID_PARAM;
  }
}

John Koleszar's avatar
John Koleszar committed
630
631
static vpx_codec_err_t vp8_set_postproc(vpx_codec_alg_priv_t *ctx,
                                        int ctr_id,
John Koleszar's avatar
John Koleszar committed
632
                                        va_list args) {
John Koleszar's avatar
John Koleszar committed
633
#if CONFIG_POSTPROC
John Koleszar's avatar
John Koleszar committed
634
  vp8_postproc_cfg_t *data = va_arg(args, vp8_postproc_cfg_t *);
John Koleszar's avatar
John Koleszar committed
635

John Koleszar's avatar
John Koleszar committed
636
637
638
639
640
641
  if (data) {
    ctx->postproc_cfg_set = 1;
    ctx->postproc_cfg = *((vp8_postproc_cfg_t *)data);
    return VPX_CODEC_OK;
  } else
    return VPX_CODEC_INVALID_PARAM;
John Koleszar's avatar
John Koleszar committed
642
643

#else
John Koleszar's avatar
John Koleszar committed
644
  return VPX_CODEC_INCAPABLE;
John Koleszar's avatar
John Koleszar committed
645
646
647
#endif
}

648
static vpx_codec_err_t vp8_set_dbg_options(vpx_codec_alg_priv_t *ctx,
John Koleszar's avatar
John Koleszar committed
649
650
                                           int ctrl_id,
                                           va_list args) {
651
#if CONFIG_POSTPROC_VISUALIZER && CONFIG_POSTPROC
John Koleszar's avatar
John Koleszar committed
652
  int data = va_arg(args, int);
653
654
655

#define MAP(id, var) case id: var = data; break;

John Koleszar's avatar
John Koleszar committed
656
657
658
659
660
661
  switch (ctrl_id) {
      MAP(VP8_SET_DBG_COLOR_REF_FRAME,   ctx->dbg_color_ref_frame_flag);
      MAP(VP8_SET_DBG_COLOR_MB_MODES,    ctx->dbg_color_mb_modes_flag);
      MAP(VP8_SET_DBG_COLOR_B_MODES,     ctx->dbg_color_b_modes_flag);
      MAP(VP8_SET_DBG_DISPLAY_MV,        ctx->dbg_display_mv_flag);
  }
662

John Koleszar's avatar
John Koleszar committed
663
  return VPX_CODEC_OK;
664
#else
John Koleszar's avatar
John Koleszar committed
665
  return VPX_CODEC_INCAPABLE;
666
667
#endif
}
John Koleszar's avatar
John Koleszar committed
668

669
670
static vpx_codec_err_t vp8_get_last_ref_updates(vpx_codec_alg_priv_t *ctx,
                                                int ctrl_id,
John Koleszar's avatar
John Koleszar committed
671
672
                                                va_list args) {
  int *update_info = va_arg(args, int *);
673
  VP9D_COMP *pbi = (VP9D_COMP *)ctx->pbi;
674

John Koleszar's avatar
John Koleszar committed
675
  if (update_info) {
676
    *update_info = pbi->refresh_frame_flags;
677

John Koleszar's avatar
John Koleszar committed
678
679
680
    return VPX_CODEC_OK;
  } else
    return VPX_CODEC_INVALID_PARAM;
681
682
683
}


684
685
static vpx_codec_err_t vp8_get_frame_corrupted(vpx_codec_alg_priv_t *ctx,
                                               int ctrl_id,
John Koleszar's avatar
John Koleszar committed
686
                                               va_list args) {
687

John Koleszar's avatar
John Koleszar committed
688
  int *corrupted = va_arg(args, int *);
689

John Koleszar's avatar
John Koleszar committed
690
  if (corrupted) {
691
    VP9D_COMP *pbi = (VP9D_COMP *)ctx->pbi;
John Koleszar's avatar
John Koleszar committed
692
    *corrupted = pbi->common.frame_to_show->corrupted;
693

John Koleszar's avatar
John Koleszar committed
694
695
696
    return VPX_CODEC_OK;
  } else
    return VPX_CODEC_INVALID_PARAM;
697
698
699

}

700
701
702
703
704
705
706
static vpx_codec_err_t set_invert_tile_order(vpx_codec_alg_priv_t *ctx,
                                             int ctr_id,
                                             va_list args) {
  ctx->invert_tile_order = va_arg(args, int);
  return VPX_CODEC_OK;
}

707
static vpx_codec_ctrl_fn_map_t ctf_maps[] = {
708
  {VP8_SET_REFERENCE,             vp9_set_reference},
John Koleszar's avatar
John Koleszar committed
709
  {VP8_COPY_REFERENCE,            vp9_copy_reference},
John Koleszar's avatar
John Koleszar committed
710
711
712
713
714
715
716
  {VP8_SET_POSTPROC,              vp8_set_postproc},
  {VP8_SET_DBG_COLOR_REF_FRAME,   vp8_set_dbg_options},
  {VP8_SET_DBG_COLOR_MB_MODES,    vp8_set_dbg_options},
  {VP8_SET_DBG_COLOR_B_MODES,     vp8_set_dbg_options},
  {VP8_SET_DBG_DISPLAY_MV,        vp8_set_dbg_options},
  {VP8D_GET_LAST_REF_UPDATES,     vp8_get_last_ref_updates},
  {VP8D_GET_FRAME_CORRUPTED,      vp8_get_frame_corrupted},
John Koleszar's avatar
John Koleszar committed
717
  {VP9_GET_REFERENCE,             get_reference},
718
  {VP9_INVERT_TILE_DECODE_ORDER,  set_invert_tile_order},
John Koleszar's avatar
John Koleszar committed
719
  { -1, NULL},
John Koleszar's avatar
John Koleszar committed
720
721
722
723
724
725
};


#ifndef VERSION_STRING
#define VERSION_STRING
#endif
726
727
CODEC_INTERFACE(vpx_codec_vp9_dx) = {
  "WebM Project VP9 Decoder" VERSION_STRING,
John Koleszar's avatar
John Koleszar committed
728
729
730
731
732
  VPX_CODEC_INTERNAL_ABI_VERSION,
  VPX_CODEC_CAP_DECODER | VP8_CAP_POSTPROC,
  /* vpx_codec_caps_t          caps; */
  vp8_init,         /* vpx_codec_init_fn_t       init; */
  vp8_destroy,      /* vpx_codec_destroy_fn_t    destroy; */
733
  ctf_maps,         /* vpx_codec_ctrl_fn_map_t  *ctrl_maps; */
John Koleszar's avatar
John Koleszar committed
734
735
736
737
738
  vp8_xma_get_mmap, /* vpx_codec_get_mmap_fn_t   get_mmap; */
  vp8_xma_set_mmap, /* vpx_codec_set_mmap_fn_t   set_mmap; */
  {
    vp8_peek_si,      /* vpx_codec_peek_si_fn_t    peek_si; */
    vp8_get_si,       /* vpx_codec_get_si_fn_t     get_si; */
739
    vp9_decode,       /* vpx_codec_decode_fn_t     decode; */
John Koleszar's avatar
John Koleszar committed
740
741
742
743
744
745
746
747
748
749
750
    vp8_get_frame,    /* vpx_codec_frame_get_fn_t  frame_get; */
  },
  {
    /* encoder functions */
    NOT_IMPLEMENTED,
    NOT_IMPLEMENTED,
    NOT_IMPLEMENTED,
    NOT_IMPLEMENTED,
    NOT_IMPLEMENTED,
    NOT_IMPLEMENTED
  }
John Koleszar's avatar
John Koleszar committed
751
};