Line data Source code
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 <assert.h>
12 : #include <stdlib.h>
13 : #include <string.h>
14 : #include "./vp8_rtcd.h"
15 : #include "./vpx_dsp_rtcd.h"
16 : #include "./vpx_scale_rtcd.h"
17 : #include "vpx/vpx_decoder.h"
18 : #include "vpx/vp8dx.h"
19 : #include "vpx/internal/vpx_codec_internal.h"
20 : #include "vpx_version.h"
21 : #include "common/alloccommon.h"
22 : #include "common/common.h"
23 : #include "common/onyxd.h"
24 : #include "decoder/onyxd_int.h"
25 : #include "vpx_dsp/vpx_dsp_common.h"
26 : #include "vpx_mem/vpx_mem.h"
27 : #include "vpx_ports/system_state.h"
28 : #if CONFIG_ERROR_CONCEALMENT
29 : #include "decoder/error_concealment.h"
30 : #endif
31 : #include "decoder/decoderthreading.h"
32 :
33 : #define VP8_CAP_POSTPROC (CONFIG_POSTPROC ? VPX_CODEC_CAP_POSTPROC : 0)
34 : #define VP8_CAP_ERROR_CONCEALMENT \
35 : (CONFIG_ERROR_CONCEALMENT ? VPX_CODEC_CAP_ERROR_CONCEALMENT : 0)
36 :
37 : typedef vpx_codec_stream_info_t vp8_stream_info_t;
38 :
39 : /* Structures for handling memory allocations */
40 : typedef enum { VP8_SEG_ALG_PRIV = 256, VP8_SEG_MAX } mem_seg_id_t;
41 : #define NELEMENTS(x) ((int)(sizeof(x) / sizeof(x[0])))
42 :
43 : struct vpx_codec_alg_priv {
44 : vpx_codec_priv_t base;
45 : vpx_codec_dec_cfg_t cfg;
46 : vp8_stream_info_t si;
47 : int decoder_init;
48 : int postproc_cfg_set;
49 : vp8_postproc_cfg_t postproc_cfg;
50 : vpx_decrypt_cb decrypt_cb;
51 : void *decrypt_state;
52 : vpx_image_t img;
53 : int img_setup;
54 : struct frame_buffers yv12_frame_buffers;
55 : void *user_priv;
56 : FRAGMENT_DATA fragments;
57 : };
58 :
59 0 : static int vp8_init_ctx(vpx_codec_ctx_t *ctx) {
60 0 : vpx_codec_alg_priv_t *priv =
61 : (vpx_codec_alg_priv_t *)vpx_calloc(1, sizeof(*priv));
62 0 : if (!priv) return 1;
63 :
64 0 : ctx->priv = (vpx_codec_priv_t *)priv;
65 0 : ctx->priv->init_flags = ctx->init_flags;
66 :
67 0 : priv->si.sz = sizeof(priv->si);
68 0 : priv->decrypt_cb = NULL;
69 0 : priv->decrypt_state = NULL;
70 :
71 0 : if (ctx->config.dec) {
72 : /* Update the reference to the config structure to an internal copy. */
73 0 : priv->cfg = *ctx->config.dec;
74 0 : ctx->config.dec = &priv->cfg;
75 : }
76 :
77 0 : return 0;
78 : }
79 :
80 0 : static vpx_codec_err_t vp8_init(vpx_codec_ctx_t *ctx,
81 : vpx_codec_priv_enc_mr_cfg_t *data) {
82 0 : vpx_codec_err_t res = VPX_CODEC_OK;
83 0 : vpx_codec_alg_priv_t *priv = NULL;
84 : (void)data;
85 :
86 0 : vp8_rtcd();
87 0 : vpx_dsp_rtcd();
88 0 : vpx_scale_rtcd();
89 :
90 : /* This function only allocates space for the vpx_codec_alg_priv_t
91 : * structure. More memory may be required at the time the stream
92 : * information becomes known.
93 : */
94 0 : if (!ctx->priv) {
95 0 : if (vp8_init_ctx(ctx)) return VPX_CODEC_MEM_ERROR;
96 0 : priv = (vpx_codec_alg_priv_t *)ctx->priv;
97 :
98 : /* initialize number of fragments to zero */
99 0 : priv->fragments.count = 0;
100 : /* is input fragments enabled? */
101 0 : priv->fragments.enabled =
102 0 : (priv->base.init_flags & VPX_CODEC_USE_INPUT_FRAGMENTS);
103 :
104 : /*post processing level initialized to do nothing */
105 : } else {
106 0 : priv = (vpx_codec_alg_priv_t *)ctx->priv;
107 : }
108 :
109 0 : return res;
110 : }
111 :
112 0 : static vpx_codec_err_t vp8_destroy(vpx_codec_alg_priv_t *ctx) {
113 0 : vp8_remove_decoder_instances(&ctx->yv12_frame_buffers);
114 :
115 0 : vpx_free(ctx);
116 :
117 0 : return VPX_CODEC_OK;
118 : }
119 :
120 0 : static vpx_codec_err_t vp8_peek_si_internal(const uint8_t *data,
121 : unsigned int data_sz,
122 : vpx_codec_stream_info_t *si,
123 : vpx_decrypt_cb decrypt_cb,
124 : void *decrypt_state) {
125 0 : vpx_codec_err_t res = VPX_CODEC_OK;
126 :
127 0 : assert(data != NULL);
128 :
129 0 : if (data + data_sz <= data) {
130 0 : res = VPX_CODEC_INVALID_PARAM;
131 : } else {
132 : /* Parse uncompresssed part of key frame header.
133 : * 3 bytes:- including version, frame type and an offset
134 : * 3 bytes:- sync code (0x9d, 0x01, 0x2a)
135 : * 4 bytes:- including image width and height in the lowest 14 bits
136 : * of each 2-byte value.
137 : */
138 : uint8_t clear_buffer[10];
139 0 : const uint8_t *clear = data;
140 0 : if (decrypt_cb) {
141 0 : int n = VPXMIN(sizeof(clear_buffer), data_sz);
142 0 : decrypt_cb(decrypt_state, data, clear_buffer, n);
143 0 : clear = clear_buffer;
144 : }
145 0 : si->is_kf = 0;
146 :
147 0 : if (data_sz >= 10 && !(clear[0] & 0x01)) /* I-Frame */
148 : {
149 0 : si->is_kf = 1;
150 :
151 : /* vet via sync code */
152 0 : if (clear[3] != 0x9d || clear[4] != 0x01 || clear[5] != 0x2a) {
153 0 : return VPX_CODEC_UNSUP_BITSTREAM;
154 : }
155 :
156 0 : si->w = (clear[6] | (clear[7] << 8)) & 0x3fff;
157 0 : si->h = (clear[8] | (clear[9] << 8)) & 0x3fff;
158 :
159 : /*printf("w=%d, h=%d\n", si->w, si->h);*/
160 0 : if (!(si->h && si->w)) res = VPX_CODEC_CORRUPT_FRAME;
161 : } else {
162 0 : res = VPX_CODEC_UNSUP_BITSTREAM;
163 : }
164 : }
165 :
166 0 : return res;
167 : }
168 :
169 0 : static vpx_codec_err_t vp8_peek_si(const uint8_t *data, unsigned int data_sz,
170 : vpx_codec_stream_info_t *si) {
171 0 : return vp8_peek_si_internal(data, data_sz, si, NULL, NULL);
172 : }
173 :
174 0 : static vpx_codec_err_t vp8_get_si(vpx_codec_alg_priv_t *ctx,
175 : vpx_codec_stream_info_t *si) {
176 : unsigned int sz;
177 :
178 0 : if (si->sz >= sizeof(vp8_stream_info_t)) {
179 0 : sz = sizeof(vp8_stream_info_t);
180 : } else {
181 0 : sz = sizeof(vpx_codec_stream_info_t);
182 : }
183 :
184 0 : memcpy(si, &ctx->si, sz);
185 0 : si->sz = sz;
186 :
187 0 : return VPX_CODEC_OK;
188 : }
189 :
190 0 : static vpx_codec_err_t update_error_state(
191 : vpx_codec_alg_priv_t *ctx, const struct vpx_internal_error_info *error) {
192 : vpx_codec_err_t res;
193 :
194 0 : if ((res = error->error_code)) {
195 0 : ctx->base.err_detail = error->has_detail ? error->detail : NULL;
196 : }
197 :
198 0 : return res;
199 : }
200 :
201 0 : static void yuvconfig2image(vpx_image_t *img, const YV12_BUFFER_CONFIG *yv12,
202 : void *user_priv) {
203 : /** vpx_img_wrap() doesn't allow specifying independent strides for
204 : * the Y, U, and V planes, nor other alignment adjustments that
205 : * might be representable by a YV12_BUFFER_CONFIG, so we just
206 : * initialize all the fields.*/
207 0 : img->fmt = VPX_IMG_FMT_I420;
208 0 : img->w = yv12->y_stride;
209 0 : img->h = (yv12->y_height + 2 * VP8BORDERINPIXELS + 15) & ~15;
210 0 : img->d_w = img->r_w = yv12->y_width;
211 0 : img->d_h = img->r_h = yv12->y_height;
212 0 : img->x_chroma_shift = 1;
213 0 : img->y_chroma_shift = 1;
214 0 : img->planes[VPX_PLANE_Y] = yv12->y_buffer;
215 0 : img->planes[VPX_PLANE_U] = yv12->u_buffer;
216 0 : img->planes[VPX_PLANE_V] = yv12->v_buffer;
217 0 : img->planes[VPX_PLANE_ALPHA] = NULL;
218 0 : img->stride[VPX_PLANE_Y] = yv12->y_stride;
219 0 : img->stride[VPX_PLANE_U] = yv12->uv_stride;
220 0 : img->stride[VPX_PLANE_V] = yv12->uv_stride;
221 0 : img->stride[VPX_PLANE_ALPHA] = yv12->y_stride;
222 0 : img->bit_depth = 8;
223 0 : img->bps = 12;
224 0 : img->user_priv = user_priv;
225 0 : img->img_data = yv12->buffer_alloc;
226 0 : img->img_data_owner = 0;
227 0 : img->self_allocd = 0;
228 0 : }
229 :
230 0 : static int update_fragments(vpx_codec_alg_priv_t *ctx, const uint8_t *data,
231 : unsigned int data_sz, vpx_codec_err_t *res) {
232 0 : *res = VPX_CODEC_OK;
233 :
234 0 : if (ctx->fragments.count == 0) {
235 : /* New frame, reset fragment pointers and sizes */
236 0 : memset((void *)ctx->fragments.ptrs, 0, sizeof(ctx->fragments.ptrs));
237 0 : memset(ctx->fragments.sizes, 0, sizeof(ctx->fragments.sizes));
238 : }
239 0 : if (ctx->fragments.enabled && !(data == NULL && data_sz == 0)) {
240 : /* Store a pointer to this fragment and return. We haven't
241 : * received the complete frame yet, so we will wait with decoding.
242 : */
243 0 : ctx->fragments.ptrs[ctx->fragments.count] = data;
244 0 : ctx->fragments.sizes[ctx->fragments.count] = data_sz;
245 0 : ctx->fragments.count++;
246 0 : if (ctx->fragments.count > (1 << EIGHT_PARTITION) + 1) {
247 0 : ctx->fragments.count = 0;
248 0 : *res = VPX_CODEC_INVALID_PARAM;
249 0 : return -1;
250 : }
251 0 : return 0;
252 : }
253 :
254 0 : if (!ctx->fragments.enabled && (data == NULL && data_sz == 0)) {
255 0 : return 0;
256 : }
257 :
258 0 : if (!ctx->fragments.enabled) {
259 0 : ctx->fragments.ptrs[0] = data;
260 0 : ctx->fragments.sizes[0] = data_sz;
261 0 : ctx->fragments.count = 1;
262 : }
263 :
264 0 : return 1;
265 : }
266 :
267 0 : static vpx_codec_err_t vp8_decode(vpx_codec_alg_priv_t *ctx,
268 : const uint8_t *data, unsigned int data_sz,
269 : void *user_priv, long deadline) {
270 0 : vpx_codec_err_t res = VPX_CODEC_OK;
271 0 : unsigned int resolution_change = 0;
272 : unsigned int w, h;
273 :
274 0 : if (!ctx->fragments.enabled && (data == NULL && data_sz == 0)) {
275 0 : return 0;
276 : }
277 :
278 : /* Update the input fragment data */
279 0 : if (update_fragments(ctx, data, data_sz, &res) <= 0) return res;
280 :
281 : /* Determine the stream parameters. Note that we rely on peek_si to
282 : * validate that we have a buffer that does not wrap around the top
283 : * of the heap.
284 : */
285 0 : w = ctx->si.w;
286 0 : h = ctx->si.h;
287 :
288 0 : res = vp8_peek_si_internal(ctx->fragments.ptrs[0], ctx->fragments.sizes[0],
289 0 : &ctx->si, ctx->decrypt_cb, ctx->decrypt_state);
290 :
291 0 : if ((res == VPX_CODEC_UNSUP_BITSTREAM) && !ctx->si.is_kf) {
292 : /* the peek function returns an error for non keyframes, however for
293 : * this case, it is not an error */
294 0 : res = VPX_CODEC_OK;
295 : }
296 :
297 0 : if (!ctx->decoder_init && !ctx->si.is_kf) res = VPX_CODEC_UNSUP_BITSTREAM;
298 :
299 0 : if ((ctx->si.h != h) || (ctx->si.w != w)) resolution_change = 1;
300 :
301 : /* Initialize the decoder instance on the first frame*/
302 0 : if (!res && !ctx->decoder_init) {
303 : VP8D_CONFIG oxcf;
304 :
305 0 : oxcf.Width = ctx->si.w;
306 0 : oxcf.Height = ctx->si.h;
307 0 : oxcf.Version = 9;
308 0 : oxcf.postprocess = 0;
309 0 : oxcf.max_threads = ctx->cfg.threads;
310 0 : oxcf.error_concealment =
311 0 : (ctx->base.init_flags & VPX_CODEC_USE_ERROR_CONCEALMENT);
312 :
313 : /* If postprocessing was enabled by the application and a
314 : * configuration has not been provided, default it.
315 : */
316 0 : if (!ctx->postproc_cfg_set &&
317 0 : (ctx->base.init_flags & VPX_CODEC_USE_POSTPROC)) {
318 0 : ctx->postproc_cfg.post_proc_flag =
319 : VP8_DEBLOCK | VP8_DEMACROBLOCK | VP8_MFQE;
320 0 : ctx->postproc_cfg.deblocking_level = 4;
321 0 : ctx->postproc_cfg.noise_level = 0;
322 : }
323 :
324 0 : res = vp8_create_decoder_instances(&ctx->yv12_frame_buffers, &oxcf);
325 0 : if (res == VPX_CODEC_OK) ctx->decoder_init = 1;
326 : }
327 :
328 : /* Set these even if already initialized. The caller may have changed the
329 : * decrypt config between frames.
330 : */
331 0 : if (ctx->decoder_init) {
332 0 : ctx->yv12_frame_buffers.pbi[0]->decrypt_cb = ctx->decrypt_cb;
333 0 : ctx->yv12_frame_buffers.pbi[0]->decrypt_state = ctx->decrypt_state;
334 : }
335 :
336 0 : if (!res) {
337 0 : VP8D_COMP *pbi = ctx->yv12_frame_buffers.pbi[0];
338 0 : if (resolution_change) {
339 0 : VP8_COMMON *const pc = &pbi->common;
340 0 : MACROBLOCKD *const xd = &pbi->mb;
341 : #if CONFIG_MULTITHREAD
342 : int i;
343 : #endif
344 0 : pc->Width = ctx->si.w;
345 0 : pc->Height = ctx->si.h;
346 : {
347 0 : int prev_mb_rows = pc->mb_rows;
348 :
349 0 : if (setjmp(pbi->common.error.jmp)) {
350 0 : pbi->common.error.setjmp = 0;
351 : /* on failure clear the cached resolution to ensure a full
352 : * reallocation is attempted on resync. */
353 0 : ctx->si.w = 0;
354 0 : ctx->si.h = 0;
355 0 : vpx_clear_system_state();
356 : /* same return value as used in vp8dx_receive_compressed_data */
357 0 : return -1;
358 : }
359 :
360 0 : pbi->common.error.setjmp = 1;
361 :
362 0 : if (pc->Width <= 0) {
363 0 : pc->Width = w;
364 0 : vpx_internal_error(&pc->error, VPX_CODEC_CORRUPT_FRAME,
365 : "Invalid frame width");
366 : }
367 :
368 0 : if (pc->Height <= 0) {
369 0 : pc->Height = h;
370 0 : vpx_internal_error(&pc->error, VPX_CODEC_CORRUPT_FRAME,
371 : "Invalid frame height");
372 : }
373 :
374 0 : if (vp8_alloc_frame_buffers(pc, pc->Width, pc->Height)) {
375 0 : vpx_internal_error(&pc->error, VPX_CODEC_MEM_ERROR,
376 : "Failed to allocate frame buffers");
377 : }
378 :
379 0 : xd->pre = pc->yv12_fb[pc->lst_fb_idx];
380 0 : xd->dst = pc->yv12_fb[pc->new_fb_idx];
381 :
382 : #if CONFIG_MULTITHREAD
383 0 : for (i = 0; i < pbi->allocated_decoding_thread_count; ++i) {
384 0 : pbi->mb_row_di[i].mbd.dst = pc->yv12_fb[pc->new_fb_idx];
385 0 : vp8_build_block_doffsets(&pbi->mb_row_di[i].mbd);
386 : }
387 : #endif
388 0 : vp8_build_block_doffsets(&pbi->mb);
389 :
390 : /* allocate memory for last frame MODE_INFO array */
391 : #if CONFIG_ERROR_CONCEALMENT
392 :
393 : if (pbi->ec_enabled) {
394 : /* old prev_mip was released by vp8_de_alloc_frame_buffers()
395 : * called in vp8_alloc_frame_buffers() */
396 : pc->prev_mip = vpx_calloc((pc->mb_cols + 1) * (pc->mb_rows + 1),
397 : sizeof(MODE_INFO));
398 :
399 : if (!pc->prev_mip) {
400 : vp8_de_alloc_frame_buffers(pc);
401 : vpx_internal_error(&pc->error, VPX_CODEC_MEM_ERROR,
402 : "Failed to allocate"
403 : "last frame MODE_INFO array");
404 : }
405 :
406 : pc->prev_mi = pc->prev_mip + pc->mode_info_stride + 1;
407 :
408 : if (vp8_alloc_overlap_lists(pbi))
409 : vpx_internal_error(&pc->error, VPX_CODEC_MEM_ERROR,
410 : "Failed to allocate overlap lists "
411 : "for error concealment");
412 : }
413 :
414 : #endif
415 :
416 : #if CONFIG_MULTITHREAD
417 0 : if (pbi->b_multithreaded_rd) {
418 0 : vp8mt_alloc_temp_buffers(pbi, pc->Width, prev_mb_rows);
419 : }
420 : #else
421 : (void)prev_mb_rows;
422 : #endif
423 : }
424 :
425 0 : pbi->common.error.setjmp = 0;
426 :
427 : /* required to get past the first get_free_fb() call */
428 0 : pbi->common.fb_idx_ref_cnt[0] = 0;
429 : }
430 :
431 : /* update the pbi fragment data */
432 0 : pbi->fragments = ctx->fragments;
433 :
434 0 : ctx->user_priv = user_priv;
435 0 : if (vp8dx_receive_compressed_data(pbi, data_sz, data, deadline)) {
436 0 : res = update_error_state(ctx, &pbi->common.error);
437 : }
438 :
439 : /* get ready for the next series of fragments */
440 0 : ctx->fragments.count = 0;
441 : }
442 :
443 0 : return res;
444 : }
445 :
446 0 : static vpx_image_t *vp8_get_frame(vpx_codec_alg_priv_t *ctx,
447 : vpx_codec_iter_t *iter) {
448 0 : vpx_image_t *img = NULL;
449 :
450 : /* iter acts as a flip flop, so an image is only returned on the first
451 : * call to get_frame.
452 : */
453 0 : if (!(*iter) && ctx->yv12_frame_buffers.pbi[0]) {
454 : YV12_BUFFER_CONFIG sd;
455 0 : int64_t time_stamp = 0, time_end_stamp = 0;
456 : vp8_ppflags_t flags;
457 0 : vp8_zero(flags);
458 :
459 0 : if (ctx->base.init_flags & VPX_CODEC_USE_POSTPROC) {
460 0 : flags.post_proc_flag = ctx->postproc_cfg.post_proc_flag;
461 0 : flags.deblocking_level = ctx->postproc_cfg.deblocking_level;
462 0 : flags.noise_level = ctx->postproc_cfg.noise_level;
463 : }
464 :
465 0 : if (0 == vp8dx_get_raw_frame(ctx->yv12_frame_buffers.pbi[0], &sd,
466 : &time_stamp, &time_end_stamp, &flags)) {
467 0 : yuvconfig2image(&ctx->img, &sd, ctx->user_priv);
468 :
469 0 : img = &ctx->img;
470 0 : *iter = img;
471 : }
472 : }
473 :
474 0 : return img;
475 : }
476 :
477 0 : static vpx_codec_err_t image2yuvconfig(const vpx_image_t *img,
478 : YV12_BUFFER_CONFIG *yv12) {
479 0 : const int y_w = img->d_w;
480 0 : const int y_h = img->d_h;
481 0 : const int uv_w = (img->d_w + 1) / 2;
482 0 : const int uv_h = (img->d_h + 1) / 2;
483 0 : vpx_codec_err_t res = VPX_CODEC_OK;
484 0 : yv12->y_buffer = img->planes[VPX_PLANE_Y];
485 0 : yv12->u_buffer = img->planes[VPX_PLANE_U];
486 0 : yv12->v_buffer = img->planes[VPX_PLANE_V];
487 :
488 0 : yv12->y_crop_width = y_w;
489 0 : yv12->y_crop_height = y_h;
490 0 : yv12->y_width = y_w;
491 0 : yv12->y_height = y_h;
492 0 : yv12->uv_crop_width = uv_w;
493 0 : yv12->uv_crop_height = uv_h;
494 0 : yv12->uv_width = uv_w;
495 0 : yv12->uv_height = uv_h;
496 :
497 0 : yv12->y_stride = img->stride[VPX_PLANE_Y];
498 0 : yv12->uv_stride = img->stride[VPX_PLANE_U];
499 :
500 0 : yv12->border = (img->stride[VPX_PLANE_Y] - img->d_w) / 2;
501 0 : return res;
502 : }
503 :
504 0 : static vpx_codec_err_t vp8_set_reference(vpx_codec_alg_priv_t *ctx,
505 : va_list args) {
506 0 : vpx_ref_frame_t *data = va_arg(args, vpx_ref_frame_t *);
507 :
508 0 : if (data) {
509 0 : vpx_ref_frame_t *frame = (vpx_ref_frame_t *)data;
510 : YV12_BUFFER_CONFIG sd;
511 :
512 0 : image2yuvconfig(&frame->img, &sd);
513 :
514 0 : return vp8dx_set_reference(ctx->yv12_frame_buffers.pbi[0],
515 : frame->frame_type, &sd);
516 : } else {
517 0 : return VPX_CODEC_INVALID_PARAM;
518 : }
519 : }
520 :
521 0 : static vpx_codec_err_t vp8_get_reference(vpx_codec_alg_priv_t *ctx,
522 : va_list args) {
523 0 : vpx_ref_frame_t *data = va_arg(args, vpx_ref_frame_t *);
524 :
525 0 : if (data) {
526 0 : vpx_ref_frame_t *frame = (vpx_ref_frame_t *)data;
527 : YV12_BUFFER_CONFIG sd;
528 :
529 0 : image2yuvconfig(&frame->img, &sd);
530 :
531 0 : return vp8dx_get_reference(ctx->yv12_frame_buffers.pbi[0],
532 : frame->frame_type, &sd);
533 : } else {
534 0 : return VPX_CODEC_INVALID_PARAM;
535 : }
536 : }
537 :
538 0 : static vpx_codec_err_t vp8_set_postproc(vpx_codec_alg_priv_t *ctx,
539 : va_list args) {
540 : #if CONFIG_POSTPROC
541 0 : vp8_postproc_cfg_t *data = va_arg(args, vp8_postproc_cfg_t *);
542 :
543 0 : if (data) {
544 0 : ctx->postproc_cfg_set = 1;
545 0 : ctx->postproc_cfg = *((vp8_postproc_cfg_t *)data);
546 0 : return VPX_CODEC_OK;
547 : } else {
548 0 : return VPX_CODEC_INVALID_PARAM;
549 : }
550 :
551 : #else
552 : (void)ctx;
553 : (void)args;
554 : return VPX_CODEC_INCAPABLE;
555 : #endif
556 : }
557 :
558 0 : static vpx_codec_err_t vp8_get_last_ref_updates(vpx_codec_alg_priv_t *ctx,
559 : va_list args) {
560 0 : int *update_info = va_arg(args, int *);
561 :
562 0 : if (update_info) {
563 0 : VP8D_COMP *pbi = (VP8D_COMP *)ctx->yv12_frame_buffers.pbi[0];
564 :
565 0 : *update_info = pbi->common.refresh_alt_ref_frame * (int)VP8_ALTR_FRAME +
566 0 : pbi->common.refresh_golden_frame * (int)VP8_GOLD_FRAME +
567 0 : pbi->common.refresh_last_frame * (int)VP8_LAST_FRAME;
568 :
569 0 : return VPX_CODEC_OK;
570 : } else {
571 0 : return VPX_CODEC_INVALID_PARAM;
572 : }
573 : }
574 :
575 : extern int vp8dx_references_buffer(VP8_COMMON *oci, int ref_frame);
576 0 : static vpx_codec_err_t vp8_get_last_ref_frame(vpx_codec_alg_priv_t *ctx,
577 : va_list args) {
578 0 : int *ref_info = va_arg(args, int *);
579 :
580 0 : if (ref_info) {
581 0 : VP8D_COMP *pbi = (VP8D_COMP *)ctx->yv12_frame_buffers.pbi[0];
582 0 : VP8_COMMON *oci = &pbi->common;
583 0 : *ref_info =
584 0 : (vp8dx_references_buffer(oci, ALTREF_FRAME) ? VP8_ALTR_FRAME : 0) |
585 0 : (vp8dx_references_buffer(oci, GOLDEN_FRAME) ? VP8_GOLD_FRAME : 0) |
586 0 : (vp8dx_references_buffer(oci, LAST_FRAME) ? VP8_LAST_FRAME : 0);
587 :
588 0 : return VPX_CODEC_OK;
589 : } else {
590 0 : return VPX_CODEC_INVALID_PARAM;
591 : }
592 : }
593 :
594 0 : static vpx_codec_err_t vp8_get_frame_corrupted(vpx_codec_alg_priv_t *ctx,
595 : va_list args) {
596 0 : int *corrupted = va_arg(args, int *);
597 0 : VP8D_COMP *pbi = (VP8D_COMP *)ctx->yv12_frame_buffers.pbi[0];
598 :
599 0 : if (corrupted && pbi) {
600 0 : const YV12_BUFFER_CONFIG *const frame = pbi->common.frame_to_show;
601 0 : if (frame == NULL) return VPX_CODEC_ERROR;
602 0 : *corrupted = frame->corrupted;
603 0 : return VPX_CODEC_OK;
604 : } else {
605 0 : return VPX_CODEC_INVALID_PARAM;
606 : }
607 : }
608 :
609 0 : static vpx_codec_err_t vp8_set_decryptor(vpx_codec_alg_priv_t *ctx,
610 : va_list args) {
611 0 : vpx_decrypt_init *init = va_arg(args, vpx_decrypt_init *);
612 :
613 0 : if (init) {
614 0 : ctx->decrypt_cb = init->decrypt_cb;
615 0 : ctx->decrypt_state = init->decrypt_state;
616 : } else {
617 0 : ctx->decrypt_cb = NULL;
618 0 : ctx->decrypt_state = NULL;
619 : }
620 0 : return VPX_CODEC_OK;
621 : }
622 :
623 : vpx_codec_ctrl_fn_map_t vp8_ctf_maps[] = {
624 : { VP8_SET_REFERENCE, vp8_set_reference },
625 : { VP8_COPY_REFERENCE, vp8_get_reference },
626 : { VP8_SET_POSTPROC, vp8_set_postproc },
627 : { VP8D_GET_LAST_REF_UPDATES, vp8_get_last_ref_updates },
628 : { VP8D_GET_FRAME_CORRUPTED, vp8_get_frame_corrupted },
629 : { VP8D_GET_LAST_REF_USED, vp8_get_last_ref_frame },
630 : { VPXD_SET_DECRYPTOR, vp8_set_decryptor },
631 : { -1, NULL },
632 : };
633 :
634 : #ifndef VERSION_STRING
635 : #define VERSION_STRING
636 : #endif
637 0 : CODEC_INTERFACE(vpx_codec_vp8_dx) = {
638 : "WebM Project VP8 Decoder" VERSION_STRING,
639 : VPX_CODEC_INTERNAL_ABI_VERSION,
640 : VPX_CODEC_CAP_DECODER | VP8_CAP_POSTPROC | VP8_CAP_ERROR_CONCEALMENT |
641 : VPX_CODEC_CAP_INPUT_FRAGMENTS,
642 : /* vpx_codec_caps_t caps; */
643 : vp8_init, /* vpx_codec_init_fn_t init; */
644 : vp8_destroy, /* vpx_codec_destroy_fn_t destroy; */
645 : vp8_ctf_maps, /* vpx_codec_ctrl_fn_map_t *ctrl_maps; */
646 : {
647 : vp8_peek_si, /* vpx_codec_peek_si_fn_t peek_si; */
648 : vp8_get_si, /* vpx_codec_get_si_fn_t get_si; */
649 : vp8_decode, /* vpx_codec_decode_fn_t decode; */
650 : vp8_get_frame, /* vpx_codec_frame_get_fn_t frame_get; */
651 : NULL,
652 : },
653 : {
654 : /* encoder functions */
655 : 0, NULL, /* vpx_codec_enc_cfg_map_t */
656 : NULL, /* vpx_codec_encode_fn_t */
657 : NULL, /* vpx_codec_get_cx_data_fn_t */
658 : NULL, /* vpx_codec_enc_config_set_fn_t */
659 : NULL, /* vpx_codec_get_global_headers_fn_t */
660 : NULL, /* vpx_codec_get_preview_frame_fn_t */
661 : NULL /* vpx_codec_enc_mr_get_mem_loc_fn_t */
662 : }
663 : };
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