1 /*
2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved.
3 *
4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree.
9 */
10
11 #include <stdlib.h>
12 #include <string.h>
13
14 #include "./vpx_version.h"
15
16 #include "vpx/internal/vpx_codec_internal.h"
17 #include "vpx/vp8dx.h"
18 #include "vpx/vpx_decoder.h"
19
20 #include "vp9/common/vp9_frame_buffers.h"
21
22 #include "vp9/decoder/vp9_decoder.h"
23 #include "vp9/decoder/vp9_decodeframe.h"
24 #include "vp9/decoder/vp9_read_bit_buffer.h"
25
26 #include "vp9/vp9_iface_common.h"
27
28 #define VP9_CAP_POSTPROC (CONFIG_VP9_POSTPROC ? VPX_CODEC_CAP_POSTPROC : 0)
29
30 typedef vpx_codec_stream_info_t vp9_stream_info_t;
31
32 struct vpx_codec_alg_priv {
33 vpx_codec_priv_t base;
34 vpx_codec_dec_cfg_t cfg;
35 vp9_stream_info_t si;
36 struct VP9Decoder *pbi;
37 int postproc_cfg_set;
38 vp8_postproc_cfg_t postproc_cfg;
39 vpx_decrypt_cb decrypt_cb;
40 void *decrypt_state;
41 vpx_image_t img;
42 int img_avail;
43 int flushed;
44 int invert_tile_order;
45 int frame_parallel_decode; // frame-based threading.
46
47 // External frame buffer info to save for VP9 common.
48 void *ext_priv; // Private data associated with the external frame buffers.
49 vpx_get_frame_buffer_cb_fn_t get_ext_fb_cb;
50 vpx_release_frame_buffer_cb_fn_t release_ext_fb_cb;
51 };
52
decoder_init(vpx_codec_ctx_t * ctx,vpx_codec_priv_enc_mr_cfg_t * data)53 static vpx_codec_err_t decoder_init(vpx_codec_ctx_t *ctx,
54 vpx_codec_priv_enc_mr_cfg_t *data) {
55 // This function only allocates space for the vpx_codec_alg_priv_t
56 // structure. More memory may be required at the time the stream
57 // information becomes known.
58 (void)data;
59
60 if (!ctx->priv) {
61 vpx_codec_alg_priv_t *const priv = vpx_calloc(1, sizeof(*priv));
62 if (priv == NULL)
63 return VPX_CODEC_MEM_ERROR;
64
65 ctx->priv = (vpx_codec_priv_t *)priv;
66 ctx->priv->init_flags = ctx->init_flags;
67
68 priv->si.sz = sizeof(priv->si);
69 priv->flushed = 0;
70 priv->frame_parallel_decode =
71 (ctx->init_flags & VPX_CODEC_USE_FRAME_THREADING);
72 priv->frame_parallel_decode = 0; // Disable for now
73
74 if (ctx->config.dec) {
75 priv->cfg = *ctx->config.dec;
76 ctx->config.dec = &priv->cfg;
77 }
78 }
79
80 return VPX_CODEC_OK;
81 }
82
decoder_destroy(vpx_codec_alg_priv_t * ctx)83 static vpx_codec_err_t decoder_destroy(vpx_codec_alg_priv_t *ctx) {
84 if (ctx->pbi) {
85 vp9_decoder_remove(ctx->pbi);
86 ctx->pbi = NULL;
87 }
88
89 vpx_free(ctx);
90
91 return VPX_CODEC_OK;
92 }
93
parse_bitdepth_colorspace_sampling(BITSTREAM_PROFILE profile,struct vp9_read_bit_buffer * rb)94 static int parse_bitdepth_colorspace_sampling(
95 BITSTREAM_PROFILE profile, struct vp9_read_bit_buffer *rb) {
96 const int sRGB = 7;
97 int colorspace;
98 if (profile >= PROFILE_2)
99 rb->bit_offset += 1; // Bit-depth 10 or 12.
100 colorspace = vp9_rb_read_literal(rb, 3);
101 if (colorspace != sRGB) {
102 rb->bit_offset += 1; // [16,235] (including xvycc) vs [0,255] range.
103 if (profile == PROFILE_1 || profile == PROFILE_3) {
104 rb->bit_offset += 2; // subsampling x/y.
105 rb->bit_offset += 1; // unused.
106 }
107 } else {
108 if (profile == PROFILE_1 || profile == PROFILE_3) {
109 rb->bit_offset += 1; // unused
110 } else {
111 // RGB is only available in version 1.
112 return 0;
113 }
114 }
115 return 1;
116 }
117
decoder_peek_si_internal(const uint8_t * data,unsigned int data_sz,vpx_codec_stream_info_t * si,int * is_intra_only,vpx_decrypt_cb decrypt_cb,void * decrypt_state)118 static vpx_codec_err_t decoder_peek_si_internal(const uint8_t *data,
119 unsigned int data_sz,
120 vpx_codec_stream_info_t *si,
121 int *is_intra_only,
122 vpx_decrypt_cb decrypt_cb,
123 void *decrypt_state) {
124 int intra_only_flag = 0;
125 uint8_t clear_buffer[9];
126
127 if (data + data_sz <= data)
128 return VPX_CODEC_INVALID_PARAM;
129
130 si->is_kf = 0;
131 si->w = si->h = 0;
132
133 if (decrypt_cb) {
134 data_sz = MIN(sizeof(clear_buffer), data_sz);
135 decrypt_cb(decrypt_state, data, clear_buffer, data_sz);
136 data = clear_buffer;
137 }
138
139 {
140 int show_frame;
141 int error_resilient;
142 struct vp9_read_bit_buffer rb = { data, data + data_sz, 0, NULL, NULL };
143 const int frame_marker = vp9_rb_read_literal(&rb, 2);
144 const BITSTREAM_PROFILE profile = vp9_read_profile(&rb);
145
146 if (frame_marker != VP9_FRAME_MARKER)
147 return VPX_CODEC_UNSUP_BITSTREAM;
148
149 if (profile >= MAX_PROFILES) return VPX_CODEC_UNSUP_BITSTREAM;
150
151 if (vp9_rb_read_bit(&rb)) { // show an existing frame
152 vp9_rb_read_literal(&rb, 3); // Frame buffer to show.
153 return VPX_CODEC_OK;
154 }
155
156 if (data_sz <= 8)
157 return VPX_CODEC_UNSUP_BITSTREAM;
158
159 si->is_kf = !vp9_rb_read_bit(&rb);
160 show_frame = vp9_rb_read_bit(&rb);
161 error_resilient = vp9_rb_read_bit(&rb);
162
163 if (si->is_kf) {
164 if (!vp9_read_sync_code(&rb))
165 return VPX_CODEC_UNSUP_BITSTREAM;
166
167 if (!parse_bitdepth_colorspace_sampling(profile, &rb))
168 return VPX_CODEC_UNSUP_BITSTREAM;
169 vp9_read_frame_size(&rb, (int *)&si->w, (int *)&si->h);
170 } else {
171 intra_only_flag = show_frame ? 0 : vp9_rb_read_bit(&rb);
172
173 rb.bit_offset += error_resilient ? 0 : 2; // reset_frame_context
174
175 if (intra_only_flag) {
176 if (!vp9_read_sync_code(&rb))
177 return VPX_CODEC_UNSUP_BITSTREAM;
178 if (profile > PROFILE_0) {
179 if (!parse_bitdepth_colorspace_sampling(profile, &rb))
180 return VPX_CODEC_UNSUP_BITSTREAM;
181 }
182 rb.bit_offset += REF_FRAMES; // refresh_frame_flags
183 vp9_read_frame_size(&rb, (int *)&si->w, (int *)&si->h);
184 }
185 }
186 }
187 if (is_intra_only != NULL)
188 *is_intra_only = intra_only_flag;
189 return VPX_CODEC_OK;
190 }
191
decoder_peek_si(const uint8_t * data,unsigned int data_sz,vpx_codec_stream_info_t * si)192 static vpx_codec_err_t decoder_peek_si(const uint8_t *data,
193 unsigned int data_sz,
194 vpx_codec_stream_info_t *si) {
195 return decoder_peek_si_internal(data, data_sz, si, NULL, NULL, NULL);
196 }
197
decoder_get_si(vpx_codec_alg_priv_t * ctx,vpx_codec_stream_info_t * si)198 static vpx_codec_err_t decoder_get_si(vpx_codec_alg_priv_t *ctx,
199 vpx_codec_stream_info_t *si) {
200 const size_t sz = (si->sz >= sizeof(vp9_stream_info_t))
201 ? sizeof(vp9_stream_info_t)
202 : sizeof(vpx_codec_stream_info_t);
203 memcpy(si, &ctx->si, sz);
204 si->sz = (unsigned int)sz;
205
206 return VPX_CODEC_OK;
207 }
208
update_error_state(vpx_codec_alg_priv_t * ctx,const struct vpx_internal_error_info * error)209 static vpx_codec_err_t update_error_state(vpx_codec_alg_priv_t *ctx,
210 const struct vpx_internal_error_info *error) {
211 if (error->error_code)
212 ctx->base.err_detail = error->has_detail ? error->detail : NULL;
213
214 return error->error_code;
215 }
216
init_buffer_callbacks(vpx_codec_alg_priv_t * ctx)217 static void init_buffer_callbacks(vpx_codec_alg_priv_t *ctx) {
218 VP9_COMMON *const cm = &ctx->pbi->common;
219
220 cm->new_fb_idx = -1;
221
222 if (ctx->get_ext_fb_cb != NULL && ctx->release_ext_fb_cb != NULL) {
223 cm->get_fb_cb = ctx->get_ext_fb_cb;
224 cm->release_fb_cb = ctx->release_ext_fb_cb;
225 cm->cb_priv = ctx->ext_priv;
226 } else {
227 cm->get_fb_cb = vp9_get_frame_buffer;
228 cm->release_fb_cb = vp9_release_frame_buffer;
229
230 if (vp9_alloc_internal_frame_buffers(&cm->int_frame_buffers))
231 vpx_internal_error(&cm->error, VPX_CODEC_MEM_ERROR,
232 "Failed to initialize internal frame buffers");
233
234 cm->cb_priv = &cm->int_frame_buffers;
235 }
236 }
237
set_default_ppflags(vp8_postproc_cfg_t * cfg)238 static void set_default_ppflags(vp8_postproc_cfg_t *cfg) {
239 cfg->post_proc_flag = VP8_DEBLOCK | VP8_DEMACROBLOCK;
240 cfg->deblocking_level = 4;
241 cfg->noise_level = 0;
242 }
243
set_ppflags(const vpx_codec_alg_priv_t * ctx,vp9_ppflags_t * flags)244 static void set_ppflags(const vpx_codec_alg_priv_t *ctx,
245 vp9_ppflags_t *flags) {
246 flags->post_proc_flag =
247 ctx->postproc_cfg.post_proc_flag;
248
249 flags->deblocking_level = ctx->postproc_cfg.deblocking_level;
250 flags->noise_level = ctx->postproc_cfg.noise_level;
251 }
252
init_decoder(vpx_codec_alg_priv_t * ctx)253 static void init_decoder(vpx_codec_alg_priv_t *ctx) {
254 ctx->pbi = vp9_decoder_create();
255 if (ctx->pbi == NULL)
256 return;
257
258 ctx->pbi->max_threads = ctx->cfg.threads;
259 ctx->pbi->inv_tile_order = ctx->invert_tile_order;
260 ctx->pbi->frame_parallel_decode = ctx->frame_parallel_decode;
261
262 // If postprocessing was enabled by the application and a
263 // configuration has not been provided, default it.
264 if (!ctx->postproc_cfg_set &&
265 (ctx->base.init_flags & VPX_CODEC_USE_POSTPROC))
266 set_default_ppflags(&ctx->postproc_cfg);
267
268 init_buffer_callbacks(ctx);
269 }
270
decode_one(vpx_codec_alg_priv_t * ctx,const uint8_t ** data,unsigned int data_sz,void * user_priv,int64_t deadline)271 static vpx_codec_err_t decode_one(vpx_codec_alg_priv_t *ctx,
272 const uint8_t **data, unsigned int data_sz,
273 void *user_priv, int64_t deadline) {
274 YV12_BUFFER_CONFIG sd;
275 vp9_ppflags_t flags = {0, 0, 0};
276 VP9_COMMON *cm = NULL;
277
278 (void)deadline;
279
280 vp9_zero(sd);
281 ctx->img_avail = 0;
282
283 // Determine the stream parameters. Note that we rely on peek_si to
284 // validate that we have a buffer that does not wrap around the top
285 // of the heap.
286 if (!ctx->si.h) {
287 int is_intra_only = 0;
288 const vpx_codec_err_t res =
289 decoder_peek_si_internal(*data, data_sz, &ctx->si, &is_intra_only,
290 ctx->decrypt_cb, ctx->decrypt_state);
291 if (res != VPX_CODEC_OK)
292 return res;
293
294 if (!ctx->si.is_kf && !is_intra_only)
295 return VPX_CODEC_ERROR;
296 }
297
298 // Initialize the decoder instance on the first frame
299 if (ctx->pbi == NULL) {
300 init_decoder(ctx);
301 if (ctx->pbi == NULL)
302 return VPX_CODEC_ERROR;
303 }
304
305 // Set these even if already initialized. The caller may have changed the
306 // decrypt config between frames.
307 ctx->pbi->decrypt_cb = ctx->decrypt_cb;
308 ctx->pbi->decrypt_state = ctx->decrypt_state;
309
310 cm = &ctx->pbi->common;
311
312 if (vp9_receive_compressed_data(ctx->pbi, data_sz, data))
313 return update_error_state(ctx, &cm->error);
314
315 if (ctx->base.init_flags & VPX_CODEC_USE_POSTPROC)
316 set_ppflags(ctx, &flags);
317
318 if (vp9_get_raw_frame(ctx->pbi, &sd, &flags))
319 return update_error_state(ctx, &cm->error);
320
321 yuvconfig2image(&ctx->img, &sd, user_priv);
322 ctx->img.fb_priv = cm->frame_bufs[cm->new_fb_idx].raw_frame_buffer.priv;
323 ctx->img_avail = 1;
324
325 return VPX_CODEC_OK;
326 }
327
decoder_decode(vpx_codec_alg_priv_t * ctx,const uint8_t * data,unsigned int data_sz,void * user_priv,long deadline)328 static vpx_codec_err_t decoder_decode(vpx_codec_alg_priv_t *ctx,
329 const uint8_t *data, unsigned int data_sz,
330 void *user_priv, long deadline) {
331 const uint8_t *data_start = data;
332 const uint8_t * const data_end = data + data_sz;
333 vpx_codec_err_t res;
334 uint32_t frame_sizes[8];
335 int frame_count;
336
337 if (data == NULL && data_sz == 0) {
338 ctx->flushed = 1;
339 return VPX_CODEC_OK;
340 }
341
342 // Reset flushed when receiving a valid frame.
343 ctx->flushed = 0;
344
345 res = vp9_parse_superframe_index(data, data_sz, frame_sizes, &frame_count,
346 ctx->decrypt_cb, ctx->decrypt_state);
347 if (res != VPX_CODEC_OK)
348 return res;
349
350 if (ctx->frame_parallel_decode) {
351 // Decode in frame parallel mode. When decoding in this mode, the frame
352 // passed to the decoder must be either a normal frame or a superframe with
353 // superframe index so the decoder could get each frame's start position
354 // in the superframe.
355 if (frame_count > 0) {
356 int i;
357
358 for (i = 0; i < frame_count; ++i) {
359 const uint8_t *data_start_copy = data_start;
360 const uint32_t frame_size = frame_sizes[i];
361 vpx_codec_err_t res;
362 if (data_start < data
363 || frame_size > (uint32_t) (data_end - data_start)) {
364 ctx->base.err_detail = "Invalid frame size in index";
365 return VPX_CODEC_CORRUPT_FRAME;
366 }
367
368 res = decode_one(ctx, &data_start_copy, frame_size, user_priv,
369 deadline);
370 if (res != VPX_CODEC_OK)
371 return res;
372
373 data_start += frame_size;
374 }
375 } else {
376 res = decode_one(ctx, &data_start, data_sz, user_priv, deadline);
377 if (res != VPX_CODEC_OK)
378 return res;
379
380 // Extra data detected after the frame.
381 if (data_start < data_end - 1) {
382 ctx->base.err_detail = "Fail to decode frame in parallel mode";
383 return VPX_CODEC_INCAPABLE;
384 }
385 }
386 } else {
387 // Decode in serial mode.
388 if (frame_count > 0) {
389 int i;
390
391 for (i = 0; i < frame_count; ++i) {
392 const uint8_t *data_start_copy = data_start;
393 const uint32_t frame_size = frame_sizes[i];
394 vpx_codec_err_t res;
395 if (data_start < data
396 || frame_size > (uint32_t) (data_end - data_start)) {
397 ctx->base.err_detail = "Invalid frame size in index";
398 return VPX_CODEC_CORRUPT_FRAME;
399 }
400
401 res = decode_one(ctx, &data_start_copy, frame_size, user_priv,
402 deadline);
403 if (res != VPX_CODEC_OK)
404 return res;
405
406 data_start += frame_size;
407 }
408 } else {
409 while (data_start < data_end) {
410 const uint32_t frame_size = (uint32_t) (data_end - data_start);
411 const vpx_codec_err_t res = decode_one(ctx, &data_start, frame_size,
412 user_priv, deadline);
413 if (res != VPX_CODEC_OK)
414 return res;
415
416 // Account for suboptimal termination by the encoder.
417 while (data_start < data_end) {
418 const uint8_t marker = read_marker(ctx->decrypt_cb,
419 ctx->decrypt_state, data_start);
420 if (marker)
421 break;
422 ++data_start;
423 }
424 }
425 }
426 }
427
428 return VPX_CODEC_OK;
429 }
430
decoder_get_frame(vpx_codec_alg_priv_t * ctx,vpx_codec_iter_t * iter)431 static vpx_image_t *decoder_get_frame(vpx_codec_alg_priv_t *ctx,
432 vpx_codec_iter_t *iter) {
433 vpx_image_t *img = NULL;
434
435 if (ctx->img_avail) {
436 // iter acts as a flip flop, so an image is only returned on the first
437 // call to get_frame.
438 if (!(*iter)) {
439 img = &ctx->img;
440 img->bit_depth = (int)ctx->pbi->common.bit_depth;
441 *iter = img;
442 }
443 }
444 ctx->img_avail = 0;
445
446 return img;
447 }
448
decoder_set_fb_fn(vpx_codec_alg_priv_t * ctx,vpx_get_frame_buffer_cb_fn_t cb_get,vpx_release_frame_buffer_cb_fn_t cb_release,void * cb_priv)449 static vpx_codec_err_t decoder_set_fb_fn(
450 vpx_codec_alg_priv_t *ctx,
451 vpx_get_frame_buffer_cb_fn_t cb_get,
452 vpx_release_frame_buffer_cb_fn_t cb_release, void *cb_priv) {
453 if (cb_get == NULL || cb_release == NULL) {
454 return VPX_CODEC_INVALID_PARAM;
455 } else if (ctx->pbi == NULL) {
456 // If the decoder has already been initialized, do not accept changes to
457 // the frame buffer functions.
458 ctx->get_ext_fb_cb = cb_get;
459 ctx->release_ext_fb_cb = cb_release;
460 ctx->ext_priv = cb_priv;
461 return VPX_CODEC_OK;
462 }
463
464 return VPX_CODEC_ERROR;
465 }
466
ctrl_set_reference(vpx_codec_alg_priv_t * ctx,va_list args)467 static vpx_codec_err_t ctrl_set_reference(vpx_codec_alg_priv_t *ctx,
468 va_list args) {
469 vpx_ref_frame_t *const data = va_arg(args, vpx_ref_frame_t *);
470
471 if (data) {
472 vpx_ref_frame_t *const frame = (vpx_ref_frame_t *)data;
473 YV12_BUFFER_CONFIG sd;
474
475 image2yuvconfig(&frame->img, &sd);
476 return vp9_set_reference_dec(&ctx->pbi->common,
477 (VP9_REFFRAME)frame->frame_type, &sd);
478 } else {
479 return VPX_CODEC_INVALID_PARAM;
480 }
481 }
482
ctrl_copy_reference(vpx_codec_alg_priv_t * ctx,va_list args)483 static vpx_codec_err_t ctrl_copy_reference(vpx_codec_alg_priv_t *ctx,
484 va_list args) {
485 vpx_ref_frame_t *data = va_arg(args, vpx_ref_frame_t *);
486
487 if (data) {
488 vpx_ref_frame_t *frame = (vpx_ref_frame_t *)data;
489 YV12_BUFFER_CONFIG sd;
490
491 image2yuvconfig(&frame->img, &sd);
492
493 return vp9_copy_reference_dec(ctx->pbi,
494 (VP9_REFFRAME)frame->frame_type, &sd);
495 } else {
496 return VPX_CODEC_INVALID_PARAM;
497 }
498 }
499
ctrl_get_reference(vpx_codec_alg_priv_t * ctx,va_list args)500 static vpx_codec_err_t ctrl_get_reference(vpx_codec_alg_priv_t *ctx,
501 va_list args) {
502 vp9_ref_frame_t *data = va_arg(args, vp9_ref_frame_t *);
503
504 if (data) {
505 YV12_BUFFER_CONFIG* fb = get_ref_frame(&ctx->pbi->common, data->idx);
506 if (fb == NULL) return VPX_CODEC_ERROR;
507
508 yuvconfig2image(&data->img, fb, NULL);
509 return VPX_CODEC_OK;
510 } else {
511 return VPX_CODEC_INVALID_PARAM;
512 }
513 }
514
ctrl_set_postproc(vpx_codec_alg_priv_t * ctx,va_list args)515 static vpx_codec_err_t ctrl_set_postproc(vpx_codec_alg_priv_t *ctx,
516 va_list args) {
517 #if CONFIG_VP9_POSTPROC
518 vp8_postproc_cfg_t *data = va_arg(args, vp8_postproc_cfg_t *);
519
520 if (data) {
521 ctx->postproc_cfg_set = 1;
522 ctx->postproc_cfg = *((vp8_postproc_cfg_t *)data);
523 return VPX_CODEC_OK;
524 } else {
525 return VPX_CODEC_INVALID_PARAM;
526 }
527 #else
528 (void)ctx;
529 (void)args;
530 return VPX_CODEC_INCAPABLE;
531 #endif
532 }
533
ctrl_set_dbg_options(vpx_codec_alg_priv_t * ctx,va_list args)534 static vpx_codec_err_t ctrl_set_dbg_options(vpx_codec_alg_priv_t *ctx,
535 va_list args) {
536 (void)ctx;
537 (void)args;
538 return VPX_CODEC_INCAPABLE;
539 }
540
ctrl_get_last_ref_updates(vpx_codec_alg_priv_t * ctx,va_list args)541 static vpx_codec_err_t ctrl_get_last_ref_updates(vpx_codec_alg_priv_t *ctx,
542 va_list args) {
543 int *const update_info = va_arg(args, int *);
544
545 if (update_info) {
546 if (ctx->pbi)
547 *update_info = ctx->pbi->refresh_frame_flags;
548 else
549 return VPX_CODEC_ERROR;
550 return VPX_CODEC_OK;
551 } else {
552 return VPX_CODEC_INVALID_PARAM;
553 }
554 }
555
556
ctrl_get_frame_corrupted(vpx_codec_alg_priv_t * ctx,va_list args)557 static vpx_codec_err_t ctrl_get_frame_corrupted(vpx_codec_alg_priv_t *ctx,
558 va_list args) {
559 int *corrupted = va_arg(args, int *);
560
561 if (corrupted != NULL && ctx->pbi != NULL) {
562 const YV12_BUFFER_CONFIG *const frame = ctx->pbi->common.frame_to_show;
563 if (frame == NULL) return VPX_CODEC_ERROR;
564 *corrupted = frame->corrupted;
565 return VPX_CODEC_OK;
566 } else {
567 return VPX_CODEC_INVALID_PARAM;
568 }
569 }
570
ctrl_get_display_size(vpx_codec_alg_priv_t * ctx,va_list args)571 static vpx_codec_err_t ctrl_get_display_size(vpx_codec_alg_priv_t *ctx,
572 va_list args) {
573 int *const display_size = va_arg(args, int *);
574
575 if (display_size) {
576 if (ctx->pbi) {
577 const VP9_COMMON *const cm = &ctx->pbi->common;
578 display_size[0] = cm->display_width;
579 display_size[1] = cm->display_height;
580 } else {
581 return VPX_CODEC_ERROR;
582 }
583 return VPX_CODEC_OK;
584 } else {
585 return VPX_CODEC_INVALID_PARAM;
586 }
587 }
588
ctrl_get_bit_depth(vpx_codec_alg_priv_t * ctx,va_list args)589 static vpx_codec_err_t ctrl_get_bit_depth(vpx_codec_alg_priv_t *ctx,
590 va_list args) {
591 unsigned int *const bit_depth = va_arg(args, unsigned int *);
592
593 if (bit_depth) {
594 if (ctx->pbi) {
595 const VP9_COMMON *const cm = &ctx->pbi->common;
596 *bit_depth = cm->bit_depth;
597 return VPX_CODEC_OK;
598 } else {
599 return VPX_CODEC_ERROR;
600 }
601 } else {
602 return VPX_CODEC_INVALID_PARAM;
603 }
604 }
605
ctrl_set_invert_tile_order(vpx_codec_alg_priv_t * ctx,va_list args)606 static vpx_codec_err_t ctrl_set_invert_tile_order(vpx_codec_alg_priv_t *ctx,
607 va_list args) {
608 ctx->invert_tile_order = va_arg(args, int);
609 return VPX_CODEC_OK;
610 }
611
ctrl_set_decryptor(vpx_codec_alg_priv_t * ctx,va_list args)612 static vpx_codec_err_t ctrl_set_decryptor(vpx_codec_alg_priv_t *ctx,
613 va_list args) {
614 vpx_decrypt_init *init = va_arg(args, vpx_decrypt_init *);
615 ctx->decrypt_cb = init ? init->decrypt_cb : NULL;
616 ctx->decrypt_state = init ? init->decrypt_state : NULL;
617 return VPX_CODEC_OK;
618 }
619
620 static vpx_codec_ctrl_fn_map_t decoder_ctrl_maps[] = {
621 {VP8_COPY_REFERENCE, ctrl_copy_reference},
622
623 // Setters
624 {VP8_SET_REFERENCE, ctrl_set_reference},
625 {VP8_SET_POSTPROC, ctrl_set_postproc},
626 {VP8_SET_DBG_COLOR_REF_FRAME, ctrl_set_dbg_options},
627 {VP8_SET_DBG_COLOR_MB_MODES, ctrl_set_dbg_options},
628 {VP8_SET_DBG_COLOR_B_MODES, ctrl_set_dbg_options},
629 {VP8_SET_DBG_DISPLAY_MV, ctrl_set_dbg_options},
630 {VP9_INVERT_TILE_DECODE_ORDER, ctrl_set_invert_tile_order},
631 {VPXD_SET_DECRYPTOR, ctrl_set_decryptor},
632
633 // Getters
634 {VP8D_GET_LAST_REF_UPDATES, ctrl_get_last_ref_updates},
635 {VP8D_GET_FRAME_CORRUPTED, ctrl_get_frame_corrupted},
636 {VP9_GET_REFERENCE, ctrl_get_reference},
637 {VP9D_GET_DISPLAY_SIZE, ctrl_get_display_size},
638 {VP9D_GET_BIT_DEPTH, ctrl_get_bit_depth},
639
640 { -1, NULL},
641 };
642
643 #ifndef VERSION_STRING
644 #define VERSION_STRING
645 #endif
646 CODEC_INTERFACE(vpx_codec_vp9_dx) = {
647 "WebM Project VP9 Decoder" VERSION_STRING,
648 VPX_CODEC_INTERNAL_ABI_VERSION,
649 VPX_CODEC_CAP_DECODER | VP9_CAP_POSTPROC |
650 VPX_CODEC_CAP_EXTERNAL_FRAME_BUFFER, // vpx_codec_caps_t
651 decoder_init, // vpx_codec_init_fn_t
652 decoder_destroy, // vpx_codec_destroy_fn_t
653 decoder_ctrl_maps, // vpx_codec_ctrl_fn_map_t
654 { // NOLINT
655 decoder_peek_si, // vpx_codec_peek_si_fn_t
656 decoder_get_si, // vpx_codec_get_si_fn_t
657 decoder_decode, // vpx_codec_decode_fn_t
658 decoder_get_frame, // vpx_codec_frame_get_fn_t
659 decoder_set_fb_fn, // vpx_codec_set_fb_fn_t
660 },
661 { // NOLINT
662 0,
663 NULL, // vpx_codec_enc_cfg_map_t
664 NULL, // vpx_codec_encode_fn_t
665 NULL, // vpx_codec_get_cx_data_fn_t
666 NULL, // vpx_codec_enc_config_set_fn_t
667 NULL, // vpx_codec_get_global_headers_fn_t
668 NULL, // vpx_codec_get_preview_frame_fn_t
669 NULL // vpx_codec_enc_mr_get_mem_loc_fn_t
670 }
671 };
672