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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 "vp8_rtcd.h"
15 #include "vpx/vpx_decoder.h"
16 #include "vpx/vp8dx.h"
17 #include "vpx/internal/vpx_codec_internal.h"
18 #include "vpx_version.h"
19 #include "common/alloccommon.h"
20 #include "common/common.h"
21 #include "common/onyxd.h"
22 #include "decoder/onyxd_int.h"
23 #include "vpx_mem/vpx_mem.h"
24 #if CONFIG_ERROR_CONCEALMENT
25 #include "decoder/error_concealment.h"
26 #endif
27 #include "decoder/decoderthreading.h"
28 
29 #define VP8_CAP_POSTPROC (CONFIG_POSTPROC ? VPX_CODEC_CAP_POSTPROC : 0)
30 #define VP8_CAP_ERROR_CONCEALMENT (CONFIG_ERROR_CONCEALMENT ? \
31                                     VPX_CODEC_CAP_ERROR_CONCEALMENT : 0)
32 
33 typedef vpx_codec_stream_info_t  vp8_stream_info_t;
34 
35 /* Structures for handling memory allocations */
36 typedef enum
37 {
38     VP8_SEG_ALG_PRIV     = 256,
39     VP8_SEG_MAX
40 } mem_seg_id_t;
41 #define NELEMENTS(x) ((int)(sizeof(x)/sizeof(x[0])))
42 
43 static unsigned long vp8_priv_sz(const vpx_codec_dec_cfg_t *si, vpx_codec_flags_t);
44 
45 struct vpx_codec_alg_priv
46 {
47     vpx_codec_priv_t        base;
48     vpx_codec_dec_cfg_t     cfg;
49     vp8_stream_info_t       si;
50     int                     decoder_init;
51     int                     postproc_cfg_set;
52     vp8_postproc_cfg_t      postproc_cfg;
53 #if CONFIG_POSTPROC_VISUALIZER
54     unsigned int            dbg_postproc_flag;
55     int                     dbg_color_ref_frame_flag;
56     int                     dbg_color_mb_modes_flag;
57     int                     dbg_color_b_modes_flag;
58     int                     dbg_display_mv_flag;
59 #endif
60     vpx_decrypt_cb          decrypt_cb;
61     void                    *decrypt_state;
62     vpx_image_t             img;
63     int                     flushed;
64     int                     img_setup;
65     struct frame_buffers    yv12_frame_buffers;
66     void                    *user_priv;
67     FRAGMENT_DATA           fragments;
68 };
69 
vp8_priv_sz(const vpx_codec_dec_cfg_t * si,vpx_codec_flags_t flags)70 static unsigned long vp8_priv_sz(const vpx_codec_dec_cfg_t *si, vpx_codec_flags_t flags)
71 {
72     /* Although this declaration is constant, we can't use it in the requested
73      * segments list because we want to define the requested segments list
74      * before defining the private type (so that the number of memory maps is
75      * known)
76      */
77     (void)si;
78     return sizeof(vpx_codec_alg_priv_t);
79 }
80 
vp8_init_ctx(vpx_codec_ctx_t * ctx)81 static void vp8_init_ctx(vpx_codec_ctx_t *ctx)
82 {
83     vpx_codec_alg_priv_t *priv =
84         (vpx_codec_alg_priv_t *)vpx_calloc(1, sizeof(*priv));
85 
86     ctx->priv = (vpx_codec_priv_t *)priv;
87     ctx->priv->init_flags = ctx->init_flags;
88 
89     priv->si.sz = sizeof(priv->si);
90     priv->decrypt_cb = NULL;
91     priv->decrypt_state = NULL;
92     priv->flushed = 0;
93 
94     if (ctx->config.dec)
95     {
96         /* Update the reference to the config structure to an internal copy. */
97         priv->cfg = *ctx->config.dec;
98         ctx->config.dec = &priv->cfg;
99     }
100 }
101 
vp8_init(vpx_codec_ctx_t * ctx,vpx_codec_priv_enc_mr_cfg_t * data)102 static vpx_codec_err_t vp8_init(vpx_codec_ctx_t *ctx,
103                                 vpx_codec_priv_enc_mr_cfg_t *data)
104 {
105     vpx_codec_err_t res = VPX_CODEC_OK;
106     vpx_codec_alg_priv_t *priv = NULL;
107     (void) data;
108 
109     vp8_rtcd();
110 
111     /* This function only allocates space for the vpx_codec_alg_priv_t
112      * structure. More memory may be required at the time the stream
113      * information becomes known.
114      */
115     if (!ctx->priv)
116     {
117         vp8_init_ctx(ctx);
118         priv = (vpx_codec_alg_priv_t *)ctx->priv;
119 
120         /* initialize number of fragments to zero */
121         priv->fragments.count = 0;
122         /* is input fragments enabled? */
123         priv->fragments.enabled =
124             (priv->base.init_flags & VPX_CODEC_USE_INPUT_FRAGMENTS);
125 
126         /*post processing level initialized to do nothing */
127     }
128     else
129     {
130         priv = (vpx_codec_alg_priv_t *)ctx->priv;
131     }
132 
133     priv->yv12_frame_buffers.use_frame_threads =
134         (ctx->priv->init_flags & VPX_CODEC_USE_FRAME_THREADING);
135 
136     /* for now, disable frame threading */
137     priv->yv12_frame_buffers.use_frame_threads = 0;
138 
139     if (priv->yv12_frame_buffers.use_frame_threads &&
140         ((ctx->priv->init_flags & VPX_CODEC_USE_ERROR_CONCEALMENT) ||
141          (ctx->priv->init_flags & VPX_CODEC_USE_INPUT_FRAGMENTS)))
142     {
143         /* row-based threading, error concealment, and input fragments will
144          * not be supported when using frame-based threading */
145         res = VPX_CODEC_INVALID_PARAM;
146     }
147 
148     return res;
149 }
150 
vp8_destroy(vpx_codec_alg_priv_t * ctx)151 static vpx_codec_err_t vp8_destroy(vpx_codec_alg_priv_t *ctx)
152 {
153     vp8_remove_decoder_instances(&ctx->yv12_frame_buffers);
154 
155     vpx_free(ctx);
156 
157     return VPX_CODEC_OK;
158 }
159 
vp8_peek_si_internal(const uint8_t * data,unsigned int data_sz,vpx_codec_stream_info_t * si,vpx_decrypt_cb decrypt_cb,void * decrypt_state)160 static vpx_codec_err_t vp8_peek_si_internal(const uint8_t *data,
161                                             unsigned int data_sz,
162                                             vpx_codec_stream_info_t *si,
163                                             vpx_decrypt_cb decrypt_cb,
164                                             void *decrypt_state)
165 {
166     vpx_codec_err_t res = VPX_CODEC_OK;
167 
168     if(data + data_sz <= data)
169     {
170         res = VPX_CODEC_INVALID_PARAM;
171     }
172     else
173     {
174         /* Parse uncompresssed part of key frame header.
175          * 3 bytes:- including version, frame type and an offset
176          * 3 bytes:- sync code (0x9d, 0x01, 0x2a)
177          * 4 bytes:- including image width and height in the lowest 14 bits
178          *           of each 2-byte value.
179          */
180         uint8_t clear_buffer[10];
181         const uint8_t *clear = data;
182         if (decrypt_cb)
183         {
184             int n = MIN(sizeof(clear_buffer), data_sz);
185             decrypt_cb(decrypt_state, data, clear_buffer, n);
186             clear = clear_buffer;
187         }
188         si->is_kf = 0;
189 
190         if (data_sz >= 10 && !(clear[0] & 0x01))  /* I-Frame */
191         {
192             si->is_kf = 1;
193 
194             /* vet via sync code */
195             if (clear[3] != 0x9d || clear[4] != 0x01 || clear[5] != 0x2a)
196                 res = VPX_CODEC_UNSUP_BITSTREAM;
197 
198             si->w = (clear[6] | (clear[7] << 8)) & 0x3fff;
199             si->h = (clear[8] | (clear[9] << 8)) & 0x3fff;
200 
201             /*printf("w=%d, h=%d\n", si->w, si->h);*/
202             if (!(si->h | si->w))
203                 res = VPX_CODEC_UNSUP_BITSTREAM;
204         }
205         else
206         {
207             res = VPX_CODEC_UNSUP_BITSTREAM;
208         }
209     }
210 
211     return res;
212 }
213 
vp8_peek_si(const uint8_t * data,unsigned int data_sz,vpx_codec_stream_info_t * si)214 static vpx_codec_err_t vp8_peek_si(const uint8_t *data,
215                                    unsigned int data_sz,
216                                    vpx_codec_stream_info_t *si) {
217     return vp8_peek_si_internal(data, data_sz, si, NULL, NULL);
218 }
219 
vp8_get_si(vpx_codec_alg_priv_t * ctx,vpx_codec_stream_info_t * si)220 static vpx_codec_err_t vp8_get_si(vpx_codec_alg_priv_t    *ctx,
221                                   vpx_codec_stream_info_t *si)
222 {
223 
224     unsigned int sz;
225 
226     if (si->sz >= sizeof(vp8_stream_info_t))
227         sz = sizeof(vp8_stream_info_t);
228     else
229         sz = sizeof(vpx_codec_stream_info_t);
230 
231     memcpy(si, &ctx->si, sz);
232     si->sz = sz;
233 
234     return VPX_CODEC_OK;
235 }
236 
237 
238 static vpx_codec_err_t
update_error_state(vpx_codec_alg_priv_t * ctx,const struct vpx_internal_error_info * error)239 update_error_state(vpx_codec_alg_priv_t                 *ctx,
240                    const struct vpx_internal_error_info *error)
241 {
242     vpx_codec_err_t res;
243 
244     if ((res = error->error_code))
245         ctx->base.err_detail = error->has_detail
246                                ? error->detail
247                                : NULL;
248 
249     return res;
250 }
251 
yuvconfig2image(vpx_image_t * img,const YV12_BUFFER_CONFIG * yv12,void * user_priv)252 static void yuvconfig2image(vpx_image_t               *img,
253                             const YV12_BUFFER_CONFIG  *yv12,
254                             void                      *user_priv)
255 {
256     /** vpx_img_wrap() doesn't allow specifying independent strides for
257       * the Y, U, and V planes, nor other alignment adjustments that
258       * might be representable by a YV12_BUFFER_CONFIG, so we just
259       * initialize all the fields.*/
260     img->fmt = VPX_IMG_FMT_I420;
261     img->w = yv12->y_stride;
262     img->h = (yv12->y_height + 2 * VP8BORDERINPIXELS + 15) & ~15;
263     img->d_w = yv12->y_width;
264     img->d_h = yv12->y_height;
265     img->x_chroma_shift = 1;
266     img->y_chroma_shift = 1;
267     img->planes[VPX_PLANE_Y] = yv12->y_buffer;
268     img->planes[VPX_PLANE_U] = yv12->u_buffer;
269     img->planes[VPX_PLANE_V] = yv12->v_buffer;
270     img->planes[VPX_PLANE_ALPHA] = NULL;
271     img->stride[VPX_PLANE_Y] = yv12->y_stride;
272     img->stride[VPX_PLANE_U] = yv12->uv_stride;
273     img->stride[VPX_PLANE_V] = yv12->uv_stride;
274     img->stride[VPX_PLANE_ALPHA] = yv12->y_stride;
275     img->bit_depth = 8;
276     img->bps = 12;
277     img->user_priv = user_priv;
278     img->img_data = yv12->buffer_alloc;
279     img->img_data_owner = 0;
280     img->self_allocd = 0;
281 }
282 
283 static int
update_fragments(vpx_codec_alg_priv_t * ctx,const uint8_t * data,unsigned int data_sz,vpx_codec_err_t * res)284 update_fragments(vpx_codec_alg_priv_t  *ctx,
285                  const uint8_t         *data,
286                  unsigned int           data_sz,
287                  vpx_codec_err_t       *res)
288 {
289     *res = VPX_CODEC_OK;
290 
291     if (ctx->fragments.count == 0)
292     {
293         /* New frame, reset fragment pointers and sizes */
294         vpx_memset((void*)ctx->fragments.ptrs, 0, sizeof(ctx->fragments.ptrs));
295         vpx_memset(ctx->fragments.sizes, 0, sizeof(ctx->fragments.sizes));
296     }
297     if (ctx->fragments.enabled && !(data == NULL && data_sz == 0))
298     {
299         /* Store a pointer to this fragment and return. We haven't
300          * received the complete frame yet, so we will wait with decoding.
301          */
302         ctx->fragments.ptrs[ctx->fragments.count] = data;
303         ctx->fragments.sizes[ctx->fragments.count] = data_sz;
304         ctx->fragments.count++;
305         if (ctx->fragments.count > (1 << EIGHT_PARTITION) + 1)
306         {
307             ctx->fragments.count = 0;
308             *res = VPX_CODEC_INVALID_PARAM;
309             return -1;
310         }
311         return 0;
312     }
313 
314     if (!ctx->fragments.enabled)
315     {
316         ctx->fragments.ptrs[0] = data;
317         ctx->fragments.sizes[0] = data_sz;
318         ctx->fragments.count = 1;
319     }
320 
321     return 1;
322 }
323 
vp8_decode(vpx_codec_alg_priv_t * ctx,const uint8_t * data,unsigned int data_sz,void * user_priv,long deadline)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     unsigned int resolution_change = 0;
332     unsigned int w, h;
333 
334     if (data == NULL && data_sz == 0) {
335       ctx->flushed = 1;
336       return VPX_CODEC_OK;
337     }
338 
339     /* Reset flushed when receiving a valid frame */
340     ctx->flushed = 0;
341 
342     /* Update the input fragment data */
343     if(update_fragments(ctx, data, data_sz, &res) <= 0)
344         return res;
345 
346     /* Determine the stream parameters. Note that we rely on peek_si to
347      * validate that we have a buffer that does not wrap around the top
348      * of the heap.
349      */
350     w = ctx->si.w;
351     h = ctx->si.h;
352 
353     res = vp8_peek_si_internal(ctx->fragments.ptrs[0], ctx->fragments.sizes[0],
354                                &ctx->si, ctx->decrypt_cb, ctx->decrypt_state);
355 
356     if((res == VPX_CODEC_UNSUP_BITSTREAM) && !ctx->si.is_kf)
357     {
358         /* the peek function returns an error for non keyframes, however for
359          * this case, it is not an error */
360         res = VPX_CODEC_OK;
361     }
362 
363     if(!ctx->decoder_init && !ctx->si.is_kf)
364         res = VPX_CODEC_UNSUP_BITSTREAM;
365 
366     if ((ctx->si.h != h) || (ctx->si.w != w))
367         resolution_change = 1;
368 
369     /* Initialize the decoder instance on the first frame*/
370     if (!res && !ctx->decoder_init)
371     {
372       VP8D_CONFIG oxcf;
373 
374       oxcf.Width = ctx->si.w;
375       oxcf.Height = ctx->si.h;
376       oxcf.Version = 9;
377       oxcf.postprocess = 0;
378       oxcf.max_threads = ctx->cfg.threads;
379       oxcf.error_concealment =
380           (ctx->base.init_flags & VPX_CODEC_USE_ERROR_CONCEALMENT);
381 
382       /* If postprocessing was enabled by the application and a
383        * configuration has not been provided, default it.
384        */
385        if (!ctx->postproc_cfg_set
386            && (ctx->base.init_flags & VPX_CODEC_USE_POSTPROC)) {
387          ctx->postproc_cfg.post_proc_flag =
388              VP8_DEBLOCK | VP8_DEMACROBLOCK | VP8_MFQE;
389          ctx->postproc_cfg.deblocking_level = 4;
390          ctx->postproc_cfg.noise_level = 0;
391        }
392 
393        res = vp8_create_decoder_instances(&ctx->yv12_frame_buffers, &oxcf);
394        ctx->decoder_init = 1;
395     }
396 
397     /* Set these even if already initialized.  The caller may have changed the
398      * decrypt config between frames.
399      */
400     if (ctx->decoder_init) {
401       ctx->yv12_frame_buffers.pbi[0]->decrypt_cb = ctx->decrypt_cb;
402       ctx->yv12_frame_buffers.pbi[0]->decrypt_state = ctx->decrypt_state;
403     }
404 
405     if (!res)
406     {
407         VP8D_COMP *pbi = ctx->yv12_frame_buffers.pbi[0];
408         if(resolution_change)
409         {
410             VP8_COMMON *const pc = & pbi->common;
411             MACROBLOCKD *const xd  = & pbi->mb;
412 #if CONFIG_MULTITHREAD
413             int i;
414 #endif
415             pc->Width = ctx->si.w;
416             pc->Height = ctx->si.h;
417             {
418                 int prev_mb_rows = pc->mb_rows;
419 
420                 if (setjmp(pbi->common.error.jmp))
421                 {
422                     pbi->common.error.setjmp = 0;
423                     vp8_clear_system_state();
424                     /* same return value as used in vp8dx_receive_compressed_data */
425                     return -1;
426                 }
427 
428                 pbi->common.error.setjmp = 1;
429 
430                 if (pc->Width <= 0)
431                 {
432                     pc->Width = w;
433                     vpx_internal_error(&pc->error, VPX_CODEC_CORRUPT_FRAME,
434                                        "Invalid frame width");
435                 }
436 
437                 if (pc->Height <= 0)
438                 {
439                     pc->Height = h;
440                     vpx_internal_error(&pc->error, VPX_CODEC_CORRUPT_FRAME,
441                                        "Invalid frame height");
442                 }
443 
444                 if (vp8_alloc_frame_buffers(pc, pc->Width, pc->Height))
445                     vpx_internal_error(&pc->error, VPX_CODEC_MEM_ERROR,
446                                        "Failed to allocate frame buffers");
447 
448                 xd->pre = pc->yv12_fb[pc->lst_fb_idx];
449                 xd->dst = pc->yv12_fb[pc->new_fb_idx];
450 
451 #if CONFIG_MULTITHREAD
452                 for (i = 0; i < pbi->allocated_decoding_thread_count; i++)
453                 {
454                     pbi->mb_row_di[i].mbd.dst = pc->yv12_fb[pc->new_fb_idx];
455                     vp8_build_block_doffsets(&pbi->mb_row_di[i].mbd);
456                 }
457 #endif
458                 vp8_build_block_doffsets(&pbi->mb);
459 
460                 /* allocate memory for last frame MODE_INFO array */
461 #if CONFIG_ERROR_CONCEALMENT
462 
463                 if (pbi->ec_enabled)
464                 {
465                     /* old prev_mip was released by vp8_de_alloc_frame_buffers()
466                      * called in vp8_alloc_frame_buffers() */
467                     pc->prev_mip = vpx_calloc(
468                                        (pc->mb_cols + 1) * (pc->mb_rows + 1),
469                                        sizeof(MODE_INFO));
470 
471                     if (!pc->prev_mip)
472                     {
473                         vp8_de_alloc_frame_buffers(pc);
474                         vpx_internal_error(&pc->error, VPX_CODEC_MEM_ERROR,
475                                            "Failed to allocate"
476                                            "last frame MODE_INFO array");
477                     }
478 
479                     pc->prev_mi = pc->prev_mip + pc->mode_info_stride + 1;
480 
481                     if (vp8_alloc_overlap_lists(pbi))
482                         vpx_internal_error(&pc->error, VPX_CODEC_MEM_ERROR,
483                                            "Failed to allocate overlap lists "
484                                            "for error concealment");
485                 }
486 
487 #endif
488 
489 #if CONFIG_MULTITHREAD
490                 if (pbi->b_multithreaded_rd)
491                     vp8mt_alloc_temp_buffers(pbi, pc->Width, prev_mb_rows);
492 #else
493                 (void)prev_mb_rows;
494 #endif
495             }
496 
497             pbi->common.error.setjmp = 0;
498 
499             /* required to get past the first get_free_fb() call */
500             pbi->common.fb_idx_ref_cnt[0] = 0;
501         }
502 
503         /* update the pbi fragment data */
504         pbi->fragments = ctx->fragments;
505 
506         ctx->user_priv = user_priv;
507         if (vp8dx_receive_compressed_data(pbi, data_sz, data, deadline))
508         {
509             res = update_error_state(ctx, &pbi->common.error);
510         }
511 
512         /* get ready for the next series of fragments */
513         ctx->fragments.count = 0;
514     }
515 
516     return res;
517 }
518 
vp8_get_frame(vpx_codec_alg_priv_t * ctx,vpx_codec_iter_t * iter)519 static vpx_image_t *vp8_get_frame(vpx_codec_alg_priv_t  *ctx,
520                                   vpx_codec_iter_t      *iter)
521 {
522     vpx_image_t *img = NULL;
523 
524     /* iter acts as a flip flop, so an image is only returned on the first
525      * call to get_frame.
526      */
527     if (!(*iter) && ctx->yv12_frame_buffers.pbi[0])
528     {
529         YV12_BUFFER_CONFIG sd;
530         int64_t time_stamp = 0, time_end_stamp = 0;
531         vp8_ppflags_t flags = {0};
532 
533         if (ctx->base.init_flags & VPX_CODEC_USE_POSTPROC)
534         {
535             flags.post_proc_flag= ctx->postproc_cfg.post_proc_flag
536 #if CONFIG_POSTPROC_VISUALIZER
537 
538                                 | ((ctx->dbg_color_ref_frame_flag != 0) ? VP8D_DEBUG_CLR_FRM_REF_BLKS : 0)
539                                 | ((ctx->dbg_color_mb_modes_flag != 0) ? VP8D_DEBUG_CLR_BLK_MODES : 0)
540                                 | ((ctx->dbg_color_b_modes_flag != 0) ? VP8D_DEBUG_CLR_BLK_MODES : 0)
541                                 | ((ctx->dbg_display_mv_flag != 0) ? VP8D_DEBUG_DRAW_MV : 0)
542 #endif
543                                 ;
544             flags.deblocking_level      = ctx->postproc_cfg.deblocking_level;
545             flags.noise_level           = ctx->postproc_cfg.noise_level;
546 #if CONFIG_POSTPROC_VISUALIZER
547             flags.display_ref_frame_flag= ctx->dbg_color_ref_frame_flag;
548             flags.display_mb_modes_flag = ctx->dbg_color_mb_modes_flag;
549             flags.display_b_modes_flag  = ctx->dbg_color_b_modes_flag;
550             flags.display_mv_flag       = ctx->dbg_display_mv_flag;
551 #endif
552         }
553 
554         if (0 == vp8dx_get_raw_frame(ctx->yv12_frame_buffers.pbi[0], &sd,
555                                      &time_stamp, &time_end_stamp, &flags))
556         {
557             yuvconfig2image(&ctx->img, &sd, ctx->user_priv);
558 
559             img = &ctx->img;
560             *iter = img;
561         }
562     }
563 
564     return img;
565 }
566 
image2yuvconfig(const vpx_image_t * img,YV12_BUFFER_CONFIG * yv12)567 static vpx_codec_err_t image2yuvconfig(const vpx_image_t   *img,
568                                        YV12_BUFFER_CONFIG  *yv12)
569 {
570     const int y_w = img->d_w;
571     const int y_h = img->d_h;
572     const int uv_w = (img->d_w + 1) / 2;
573     const int uv_h = (img->d_h + 1) / 2;
574     vpx_codec_err_t        res = VPX_CODEC_OK;
575     yv12->y_buffer = img->planes[VPX_PLANE_Y];
576     yv12->u_buffer = img->planes[VPX_PLANE_U];
577     yv12->v_buffer = img->planes[VPX_PLANE_V];
578 
579     yv12->y_crop_width  = y_w;
580     yv12->y_crop_height = y_h;
581     yv12->y_width  = y_w;
582     yv12->y_height = y_h;
583     yv12->uv_crop_width = uv_w;
584     yv12->uv_crop_height = uv_h;
585     yv12->uv_width = uv_w;
586     yv12->uv_height = uv_h;
587 
588     yv12->y_stride = img->stride[VPX_PLANE_Y];
589     yv12->uv_stride = img->stride[VPX_PLANE_U];
590 
591     yv12->border  = (img->stride[VPX_PLANE_Y] - img->d_w) / 2;
592     return res;
593 }
594 
595 
vp8_set_reference(vpx_codec_alg_priv_t * ctx,va_list args)596 static vpx_codec_err_t vp8_set_reference(vpx_codec_alg_priv_t *ctx,
597                                          va_list args)
598 {
599 
600     vpx_ref_frame_t *data = va_arg(args, vpx_ref_frame_t *);
601 
602     if (data && !ctx->yv12_frame_buffers.use_frame_threads)
603     {
604         vpx_ref_frame_t *frame = (vpx_ref_frame_t *)data;
605         YV12_BUFFER_CONFIG sd;
606 
607         image2yuvconfig(&frame->img, &sd);
608 
609         return vp8dx_set_reference(ctx->yv12_frame_buffers.pbi[0],
610                                    frame->frame_type, &sd);
611     }
612     else
613         return VPX_CODEC_INVALID_PARAM;
614 
615 }
616 
vp8_get_reference(vpx_codec_alg_priv_t * ctx,va_list args)617 static vpx_codec_err_t vp8_get_reference(vpx_codec_alg_priv_t *ctx,
618                                          va_list args)
619 {
620 
621     vpx_ref_frame_t *data = va_arg(args, vpx_ref_frame_t *);
622 
623     if (data && !ctx->yv12_frame_buffers.use_frame_threads)
624     {
625         vpx_ref_frame_t *frame = (vpx_ref_frame_t *)data;
626         YV12_BUFFER_CONFIG sd;
627 
628         image2yuvconfig(&frame->img, &sd);
629 
630         return vp8dx_get_reference(ctx->yv12_frame_buffers.pbi[0],
631                                    frame->frame_type, &sd);
632     }
633     else
634         return VPX_CODEC_INVALID_PARAM;
635 
636 }
637 
vp8_set_postproc(vpx_codec_alg_priv_t * ctx,va_list args)638 static vpx_codec_err_t vp8_set_postproc(vpx_codec_alg_priv_t *ctx,
639                                         va_list args)
640 {
641 #if CONFIG_POSTPROC
642     vp8_postproc_cfg_t *data = va_arg(args, vp8_postproc_cfg_t *);
643 
644     if (data)
645     {
646         ctx->postproc_cfg_set = 1;
647         ctx->postproc_cfg = *((vp8_postproc_cfg_t *)data);
648         return VPX_CODEC_OK;
649     }
650     else
651         return VPX_CODEC_INVALID_PARAM;
652 
653 #else
654     return VPX_CODEC_INCAPABLE;
655 #endif
656 }
657 
658 
vp8_set_dbg_color_ref_frame(vpx_codec_alg_priv_t * ctx,va_list args)659 static vpx_codec_err_t vp8_set_dbg_color_ref_frame(vpx_codec_alg_priv_t *ctx,
660                                                    va_list args) {
661 #if CONFIG_POSTPROC_VISUALIZER && CONFIG_POSTPROC
662   ctx->dbg_color_ref_frame_flag = va_arg(args, int);
663   return VPX_CODEC_OK;
664 #else
665   (void)ctx;
666   (void)args;
667   return VPX_CODEC_INCAPABLE;
668 #endif
669 }
670 
vp8_set_dbg_color_mb_modes(vpx_codec_alg_priv_t * ctx,va_list args)671 static vpx_codec_err_t vp8_set_dbg_color_mb_modes(vpx_codec_alg_priv_t *ctx,
672                                                   va_list args) {
673 #if CONFIG_POSTPROC_VISUALIZER && CONFIG_POSTPROC
674   ctx->dbg_color_mb_modes_flag = va_arg(args, int);
675   return VPX_CODEC_OK;
676 #else
677   (void)ctx;
678   (void)args;
679   return VPX_CODEC_INCAPABLE;
680 #endif
681 }
682 
vp8_set_dbg_color_b_modes(vpx_codec_alg_priv_t * ctx,va_list args)683 static vpx_codec_err_t vp8_set_dbg_color_b_modes(vpx_codec_alg_priv_t *ctx,
684                                                  va_list args) {
685 #if CONFIG_POSTPROC_VISUALIZER && CONFIG_POSTPROC
686   ctx->dbg_color_b_modes_flag = va_arg(args, int);
687   return VPX_CODEC_OK;
688 #else
689   (void)ctx;
690   (void)args;
691   return VPX_CODEC_INCAPABLE;
692 #endif
693 }
694 
vp8_set_dbg_display_mv(vpx_codec_alg_priv_t * ctx,va_list args)695 static vpx_codec_err_t vp8_set_dbg_display_mv(vpx_codec_alg_priv_t *ctx,
696                                               va_list args) {
697 #if CONFIG_POSTPROC_VISUALIZER && CONFIG_POSTPROC
698   ctx->dbg_display_mv_flag = va_arg(args, int);
699   return VPX_CODEC_OK;
700 #else
701   (void)ctx;
702   (void)args;
703   return VPX_CODEC_INCAPABLE;
704 #endif
705 }
706 
vp8_get_last_ref_updates(vpx_codec_alg_priv_t * ctx,va_list args)707 static vpx_codec_err_t vp8_get_last_ref_updates(vpx_codec_alg_priv_t *ctx,
708                                                 va_list args)
709 {
710     int *update_info = va_arg(args, int *);
711 
712     if (update_info && !ctx->yv12_frame_buffers.use_frame_threads)
713     {
714         VP8D_COMP *pbi = (VP8D_COMP *)ctx->yv12_frame_buffers.pbi[0];
715 
716         *update_info = pbi->common.refresh_alt_ref_frame * (int) VP8_ALTR_FRAME
717             + pbi->common.refresh_golden_frame * (int) VP8_GOLD_FRAME
718             + pbi->common.refresh_last_frame * (int) VP8_LAST_FRAME;
719 
720         return VPX_CODEC_OK;
721     }
722     else
723         return VPX_CODEC_INVALID_PARAM;
724 }
725 
726 extern int vp8dx_references_buffer( VP8_COMMON *oci, int ref_frame );
vp8_get_last_ref_frame(vpx_codec_alg_priv_t * ctx,va_list args)727 static vpx_codec_err_t vp8_get_last_ref_frame(vpx_codec_alg_priv_t *ctx,
728                                               va_list args)
729 {
730     int *ref_info = va_arg(args, int *);
731 
732     if (ref_info && !ctx->yv12_frame_buffers.use_frame_threads)
733     {
734         VP8D_COMP *pbi = (VP8D_COMP *)ctx->yv12_frame_buffers.pbi[0];
735         VP8_COMMON *oci = &pbi->common;
736         *ref_info =
737             (vp8dx_references_buffer( oci, ALTREF_FRAME )?VP8_ALTR_FRAME:0) |
738             (vp8dx_references_buffer( oci, GOLDEN_FRAME )?VP8_GOLD_FRAME:0) |
739             (vp8dx_references_buffer( oci, LAST_FRAME )?VP8_LAST_FRAME:0);
740 
741         return VPX_CODEC_OK;
742     }
743     else
744         return VPX_CODEC_INVALID_PARAM;
745 }
746 
vp8_get_frame_corrupted(vpx_codec_alg_priv_t * ctx,va_list args)747 static vpx_codec_err_t vp8_get_frame_corrupted(vpx_codec_alg_priv_t *ctx,
748                                                va_list args)
749 {
750 
751     int *corrupted = va_arg(args, int *);
752     VP8D_COMP *pbi = (VP8D_COMP *)ctx->yv12_frame_buffers.pbi[0];
753 
754     if (corrupted && pbi)
755     {
756         const YV12_BUFFER_CONFIG *const frame = pbi->common.frame_to_show;
757         if (frame == NULL) return VPX_CODEC_ERROR;
758         *corrupted = frame->corrupted;
759         return VPX_CODEC_OK;
760     }
761     else
762         return VPX_CODEC_INVALID_PARAM;
763 
764 }
765 
vp8_set_decryptor(vpx_codec_alg_priv_t * ctx,va_list args)766 static vpx_codec_err_t vp8_set_decryptor(vpx_codec_alg_priv_t *ctx,
767                                          va_list args)
768 {
769     vpx_decrypt_init *init = va_arg(args, vpx_decrypt_init *);
770 
771     if (init)
772     {
773         ctx->decrypt_cb = init->decrypt_cb;
774         ctx->decrypt_state = init->decrypt_state;
775     }
776     else
777     {
778         ctx->decrypt_cb = NULL;
779         ctx->decrypt_state = NULL;
780     }
781     return VPX_CODEC_OK;
782 }
783 
784 vpx_codec_ctrl_fn_map_t vp8_ctf_maps[] =
785 {
786     {VP8_SET_REFERENCE,             vp8_set_reference},
787     {VP8_COPY_REFERENCE,            vp8_get_reference},
788     {VP8_SET_POSTPROC,              vp8_set_postproc},
789     {VP8_SET_DBG_COLOR_REF_FRAME,   vp8_set_dbg_color_ref_frame},
790     {VP8_SET_DBG_COLOR_MB_MODES,    vp8_set_dbg_color_mb_modes},
791     {VP8_SET_DBG_COLOR_B_MODES,     vp8_set_dbg_color_b_modes},
792     {VP8_SET_DBG_DISPLAY_MV,        vp8_set_dbg_display_mv},
793     {VP8D_GET_LAST_REF_UPDATES,     vp8_get_last_ref_updates},
794     {VP8D_GET_FRAME_CORRUPTED,      vp8_get_frame_corrupted},
795     {VP8D_GET_LAST_REF_USED,        vp8_get_last_ref_frame},
796     {VPXD_SET_DECRYPTOR,            vp8_set_decryptor},
797     { -1, NULL},
798 };
799 
800 
801 #ifndef VERSION_STRING
802 #define VERSION_STRING
803 #endif
804 CODEC_INTERFACE(vpx_codec_vp8_dx) =
805 {
806     "WebM Project VP8 Decoder" VERSION_STRING,
807     VPX_CODEC_INTERNAL_ABI_VERSION,
808     VPX_CODEC_CAP_DECODER | VP8_CAP_POSTPROC | VP8_CAP_ERROR_CONCEALMENT |
809     VPX_CODEC_CAP_INPUT_FRAGMENTS,
810     /* vpx_codec_caps_t          caps; */
811     vp8_init,         /* vpx_codec_init_fn_t       init; */
812     vp8_destroy,      /* vpx_codec_destroy_fn_t    destroy; */
813     vp8_ctf_maps,     /* vpx_codec_ctrl_fn_map_t  *ctrl_maps; */
814     {
815         vp8_peek_si,      /* vpx_codec_peek_si_fn_t    peek_si; */
816         vp8_get_si,       /* vpx_codec_get_si_fn_t     get_si; */
817         vp8_decode,       /* vpx_codec_decode_fn_t     decode; */
818         vp8_get_frame,    /* vpx_codec_frame_get_fn_t  frame_get; */
819         NULL,
820     },
821     { /* encoder functions */
822         0,
823         NULL,
824         NULL,
825         NULL,
826         NULL,
827         NULL,
828         NULL
829     }
830 };
831