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_config.h" 15#include "./vpx_version.h" 16 17#include "vpx/internal/vpx_codec_internal.h" 18#include "vpx/vp8dx.h" 19#include "vpx/vpx_decoder.h" 20#include "vpx_dsp/bitreader_buffer.h" 21#include "vpx_dsp/vpx_dsp_common.h" 22#include "vpx_util/vpx_thread.h" 23 24#include "vp9/common/vp9_alloccommon.h" 25#include "vp9/common/vp9_frame_buffers.h" 26 27#include "vp9/decoder/vp9_decodeframe.h" 28 29#include "vp9/vp9_dx_iface.h" 30#include "vp9/vp9_iface_common.h" 31 32#define VP9_CAP_POSTPROC (CONFIG_VP9_POSTPROC ? VPX_CODEC_CAP_POSTPROC : 0) 33 34static vpx_codec_err_t decoder_init(vpx_codec_ctx_t *ctx, 35 vpx_codec_priv_enc_mr_cfg_t *data) { 36 // This function only allocates space for the vpx_codec_alg_priv_t 37 // structure. More memory may be required at the time the stream 38 // information becomes known. 39 (void)data; 40 41 if (!ctx->priv) { 42 vpx_codec_alg_priv_t *const priv = 43 (vpx_codec_alg_priv_t *)vpx_calloc(1, sizeof(*priv)); 44 if (priv == NULL) return VPX_CODEC_MEM_ERROR; 45 46 ctx->priv = (vpx_codec_priv_t *)priv; 47 ctx->priv->init_flags = ctx->init_flags; 48 priv->si.sz = sizeof(priv->si); 49 priv->flushed = 0; 50 if (ctx->config.dec) { 51 priv->cfg = *ctx->config.dec; 52 ctx->config.dec = &priv->cfg; 53 } 54 } 55 56 return VPX_CODEC_OK; 57} 58 59static vpx_codec_err_t decoder_destroy(vpx_codec_alg_priv_t *ctx) { 60 if (ctx->pbi != NULL) { 61 vp9_decoder_remove(ctx->pbi); 62 } 63 64 if (ctx->buffer_pool) { 65 vp9_free_ref_frame_buffers(ctx->buffer_pool); 66 vp9_free_internal_frame_buffers(&ctx->buffer_pool->int_frame_buffers); 67 } 68 69 vpx_free(ctx->buffer_pool); 70 vpx_free(ctx); 71 return VPX_CODEC_OK; 72} 73 74static int parse_bitdepth_colorspace_sampling(BITSTREAM_PROFILE profile, 75 struct vpx_read_bit_buffer *rb) { 76 vpx_color_space_t color_space; 77 if (profile >= PROFILE_2) rb->bit_offset += 1; // Bit-depth 10 or 12. 78 color_space = (vpx_color_space_t)vpx_rb_read_literal(rb, 3); 79 if (color_space != VPX_CS_SRGB) { 80 rb->bit_offset += 1; // [16,235] (including xvycc) vs [0,255] range. 81 if (profile == PROFILE_1 || profile == PROFILE_3) { 82 rb->bit_offset += 2; // subsampling x/y. 83 rb->bit_offset += 1; // unused. 84 } 85 } else { 86 if (profile == PROFILE_1 || profile == PROFILE_3) { 87 rb->bit_offset += 1; // unused 88 } else { 89 // RGB is only available in version 1. 90 return 0; 91 } 92 } 93 return 1; 94} 95 96static vpx_codec_err_t decoder_peek_si_internal( 97 const uint8_t *data, unsigned int data_sz, vpx_codec_stream_info_t *si, 98 int *is_intra_only, vpx_decrypt_cb decrypt_cb, void *decrypt_state) { 99 int intra_only_flag = 0; 100 uint8_t clear_buffer[10]; 101 102 if (data + data_sz <= data) return VPX_CODEC_INVALID_PARAM; 103 104 si->is_kf = 0; 105 si->w = si->h = 0; 106 107 if (decrypt_cb) { 108 data_sz = VPXMIN(sizeof(clear_buffer), data_sz); 109 decrypt_cb(decrypt_state, data, clear_buffer, data_sz); 110 data = clear_buffer; 111 } 112 113 // A maximum of 6 bits are needed to read the frame marker, profile and 114 // show_existing_frame. 115 if (data_sz < 1) return VPX_CODEC_UNSUP_BITSTREAM; 116 117 { 118 int show_frame; 119 int error_resilient; 120 struct vpx_read_bit_buffer rb = { data, data + data_sz, 0, NULL, NULL }; 121 const int frame_marker = vpx_rb_read_literal(&rb, 2); 122 const BITSTREAM_PROFILE profile = vp9_read_profile(&rb); 123 124 if (frame_marker != VP9_FRAME_MARKER) return VPX_CODEC_UNSUP_BITSTREAM; 125 126 if (profile >= MAX_PROFILES) return VPX_CODEC_UNSUP_BITSTREAM; 127 128 if (vpx_rb_read_bit(&rb)) { // show an existing frame 129 // If profile is > 2 and show_existing_frame is true, then at least 1 more 130 // byte (6+3=9 bits) is needed. 131 if (profile > 2 && data_sz < 2) return VPX_CODEC_UNSUP_BITSTREAM; 132 vpx_rb_read_literal(&rb, 3); // Frame buffer to show. 133 return VPX_CODEC_OK; 134 } 135 136 // For the rest of the function, a maximum of 9 more bytes are needed 137 // (computed by taking the maximum possible bits needed in each case). Note 138 // that this has to be updated if we read any more bits in this function. 139 if (data_sz < 10) return VPX_CODEC_UNSUP_BITSTREAM; 140 141 si->is_kf = !vpx_rb_read_bit(&rb); 142 show_frame = vpx_rb_read_bit(&rb); 143 error_resilient = vpx_rb_read_bit(&rb); 144 145 if (si->is_kf) { 146 if (!vp9_read_sync_code(&rb)) return VPX_CODEC_UNSUP_BITSTREAM; 147 148 if (!parse_bitdepth_colorspace_sampling(profile, &rb)) 149 return VPX_CODEC_UNSUP_BITSTREAM; 150 vp9_read_frame_size(&rb, (int *)&si->w, (int *)&si->h); 151 } else { 152 intra_only_flag = show_frame ? 0 : vpx_rb_read_bit(&rb); 153 154 rb.bit_offset += error_resilient ? 0 : 2; // reset_frame_context 155 156 if (intra_only_flag) { 157 if (!vp9_read_sync_code(&rb)) return VPX_CODEC_UNSUP_BITSTREAM; 158 if (profile > PROFILE_0) { 159 if (!parse_bitdepth_colorspace_sampling(profile, &rb)) 160 return VPX_CODEC_UNSUP_BITSTREAM; 161 } 162 rb.bit_offset += REF_FRAMES; // refresh_frame_flags 163 vp9_read_frame_size(&rb, (int *)&si->w, (int *)&si->h); 164 } 165 } 166 } 167 if (is_intra_only != NULL) *is_intra_only = intra_only_flag; 168 return VPX_CODEC_OK; 169} 170 171static vpx_codec_err_t decoder_peek_si(const uint8_t *data, 172 unsigned int data_sz, 173 vpx_codec_stream_info_t *si) { 174 return decoder_peek_si_internal(data, data_sz, si, NULL, NULL, NULL); 175} 176 177static vpx_codec_err_t decoder_get_si(vpx_codec_alg_priv_t *ctx, 178 vpx_codec_stream_info_t *si) { 179 const size_t sz = (si->sz >= sizeof(vp9_stream_info_t)) 180 ? sizeof(vp9_stream_info_t) 181 : sizeof(vpx_codec_stream_info_t); 182 memcpy(si, &ctx->si, sz); 183 si->sz = (unsigned int)sz; 184 185 return VPX_CODEC_OK; 186} 187 188static void set_error_detail(vpx_codec_alg_priv_t *ctx, 189 const char *const error) { 190 ctx->base.err_detail = error; 191} 192 193static vpx_codec_err_t update_error_state( 194 vpx_codec_alg_priv_t *ctx, const struct vpx_internal_error_info *error) { 195 if (error->error_code) 196 set_error_detail(ctx, error->has_detail ? error->detail : NULL); 197 198 return error->error_code; 199} 200 201static void init_buffer_callbacks(vpx_codec_alg_priv_t *ctx) { 202 VP9_COMMON *const cm = &ctx->pbi->common; 203 BufferPool *const pool = cm->buffer_pool; 204 205 cm->new_fb_idx = INVALID_IDX; 206 cm->byte_alignment = ctx->byte_alignment; 207 cm->skip_loop_filter = ctx->skip_loop_filter; 208 209 if (ctx->get_ext_fb_cb != NULL && ctx->release_ext_fb_cb != NULL) { 210 pool->get_fb_cb = ctx->get_ext_fb_cb; 211 pool->release_fb_cb = ctx->release_ext_fb_cb; 212 pool->cb_priv = ctx->ext_priv; 213 } else { 214 pool->get_fb_cb = vp9_get_frame_buffer; 215 pool->release_fb_cb = vp9_release_frame_buffer; 216 217 if (vp9_alloc_internal_frame_buffers(&pool->int_frame_buffers)) 218 vpx_internal_error(&cm->error, VPX_CODEC_MEM_ERROR, 219 "Failed to initialize internal frame buffers"); 220 221 pool->cb_priv = &pool->int_frame_buffers; 222 } 223} 224 225static void set_default_ppflags(vp8_postproc_cfg_t *cfg) { 226 cfg->post_proc_flag = VP8_DEBLOCK | VP8_DEMACROBLOCK; 227 cfg->deblocking_level = 4; 228 cfg->noise_level = 0; 229} 230 231static void set_ppflags(const vpx_codec_alg_priv_t *ctx, vp9_ppflags_t *flags) { 232 flags->post_proc_flag = ctx->postproc_cfg.post_proc_flag; 233 234 flags->deblocking_level = ctx->postproc_cfg.deblocking_level; 235 flags->noise_level = ctx->postproc_cfg.noise_level; 236} 237 238static vpx_codec_err_t init_decoder(vpx_codec_alg_priv_t *ctx) { 239 ctx->last_show_frame = -1; 240 ctx->need_resync = 1; 241 ctx->flushed = 0; 242 243 ctx->buffer_pool = (BufferPool *)vpx_calloc(1, sizeof(BufferPool)); 244 if (ctx->buffer_pool == NULL) return VPX_CODEC_MEM_ERROR; 245 246 ctx->pbi = vp9_decoder_create(ctx->buffer_pool); 247 if (ctx->pbi == NULL) { 248 set_error_detail(ctx, "Failed to allocate decoder"); 249 return VPX_CODEC_MEM_ERROR; 250 } 251 ctx->pbi->max_threads = ctx->cfg.threads; 252 ctx->pbi->inv_tile_order = ctx->invert_tile_order; 253 254 // If postprocessing was enabled by the application and a 255 // configuration has not been provided, default it. 256 if (!ctx->postproc_cfg_set && (ctx->base.init_flags & VPX_CODEC_USE_POSTPROC)) 257 set_default_ppflags(&ctx->postproc_cfg); 258 259 init_buffer_callbacks(ctx); 260 261 return VPX_CODEC_OK; 262} 263 264static INLINE void check_resync(vpx_codec_alg_priv_t *const ctx, 265 const VP9Decoder *const pbi) { 266 // Clear resync flag if the decoder got a key frame or intra only frame. 267 if (ctx->need_resync == 1 && pbi->need_resync == 0 && 268 (pbi->common.intra_only || pbi->common.frame_type == KEY_FRAME)) 269 ctx->need_resync = 0; 270} 271 272static vpx_codec_err_t decode_one(vpx_codec_alg_priv_t *ctx, 273 const uint8_t **data, unsigned int data_sz, 274 void *user_priv, int64_t deadline) { 275 (void)deadline; 276 277 // Determine the stream parameters. Note that we rely on peek_si to 278 // validate that we have a buffer that does not wrap around the top 279 // of the heap. 280 if (!ctx->si.h) { 281 int is_intra_only = 0; 282 const vpx_codec_err_t res = 283 decoder_peek_si_internal(*data, data_sz, &ctx->si, &is_intra_only, 284 ctx->decrypt_cb, ctx->decrypt_state); 285 if (res != VPX_CODEC_OK) return res; 286 287 if (!ctx->si.is_kf && !is_intra_only) return VPX_CODEC_ERROR; 288 } 289 290 ctx->user_priv = user_priv; 291 292 // Set these even if already initialized. The caller may have changed the 293 // decrypt config between frames. 294 ctx->pbi->decrypt_cb = ctx->decrypt_cb; 295 ctx->pbi->decrypt_state = ctx->decrypt_state; 296 297 if (vp9_receive_compressed_data(ctx->pbi, data_sz, data)) { 298 ctx->pbi->cur_buf->buf.corrupted = 1; 299 ctx->pbi->need_resync = 1; 300 ctx->need_resync = 1; 301 return update_error_state(ctx, &ctx->pbi->common.error); 302 } 303 304 check_resync(ctx, ctx->pbi); 305 306 return VPX_CODEC_OK; 307} 308 309static vpx_codec_err_t decoder_decode(vpx_codec_alg_priv_t *ctx, 310 const uint8_t *data, unsigned int data_sz, 311 void *user_priv, long deadline) { 312 const uint8_t *data_start = data; 313 const uint8_t *const data_end = data + data_sz; 314 vpx_codec_err_t res; 315 uint32_t frame_sizes[8]; 316 int frame_count; 317 318 if (data == NULL && data_sz == 0) { 319 ctx->flushed = 1; 320 return VPX_CODEC_OK; 321 } 322 323 // Reset flushed when receiving a valid frame. 324 ctx->flushed = 0; 325 326 // Initialize the decoder on the first frame. 327 if (ctx->pbi == NULL) { 328 const vpx_codec_err_t res = init_decoder(ctx); 329 if (res != VPX_CODEC_OK) return res; 330 } 331 332 res = vp9_parse_superframe_index(data, data_sz, frame_sizes, &frame_count, 333 ctx->decrypt_cb, ctx->decrypt_state); 334 if (res != VPX_CODEC_OK) return res; 335 336 if (ctx->svc_decoding && ctx->svc_spatial_layer < frame_count - 1) 337 frame_count = ctx->svc_spatial_layer + 1; 338 339 // Decode in serial mode. 340 if (frame_count > 0) { 341 int i; 342 343 for (i = 0; i < frame_count; ++i) { 344 const uint8_t *data_start_copy = data_start; 345 const uint32_t frame_size = frame_sizes[i]; 346 vpx_codec_err_t res; 347 if (data_start < data || frame_size > (uint32_t)(data_end - data_start)) { 348 set_error_detail(ctx, "Invalid frame size in index"); 349 return VPX_CODEC_CORRUPT_FRAME; 350 } 351 352 res = decode_one(ctx, &data_start_copy, frame_size, user_priv, deadline); 353 if (res != VPX_CODEC_OK) return res; 354 355 data_start += frame_size; 356 } 357 } else { 358 while (data_start < data_end) { 359 const uint32_t frame_size = (uint32_t)(data_end - data_start); 360 const vpx_codec_err_t res = 361 decode_one(ctx, &data_start, frame_size, user_priv, deadline); 362 if (res != VPX_CODEC_OK) return res; 363 364 // Account for suboptimal termination by the encoder. 365 while (data_start < data_end) { 366 const uint8_t marker = 367 read_marker(ctx->decrypt_cb, ctx->decrypt_state, data_start); 368 if (marker) break; 369 ++data_start; 370 } 371 } 372 } 373 374 return res; 375} 376 377static vpx_image_t *decoder_get_frame(vpx_codec_alg_priv_t *ctx, 378 vpx_codec_iter_t *iter) { 379 vpx_image_t *img = NULL; 380 381 // Legacy parameter carried over from VP8. Has no effect for VP9 since we 382 // always return only 1 frame per decode call. 383 (void)iter; 384 385 if (ctx->pbi != NULL) { 386 YV12_BUFFER_CONFIG sd; 387 vp9_ppflags_t flags = { 0, 0, 0 }; 388 if (ctx->base.init_flags & VPX_CODEC_USE_POSTPROC) set_ppflags(ctx, &flags); 389 if (vp9_get_raw_frame(ctx->pbi, &sd, &flags) == 0) { 390 VP9_COMMON *const cm = &ctx->pbi->common; 391 RefCntBuffer *const frame_bufs = cm->buffer_pool->frame_bufs; 392 ctx->last_show_frame = ctx->pbi->common.new_fb_idx; 393 if (ctx->need_resync) return NULL; 394 yuvconfig2image(&ctx->img, &sd, ctx->user_priv); 395 ctx->img.fb_priv = frame_bufs[cm->new_fb_idx].raw_frame_buffer.priv; 396 img = &ctx->img; 397 return img; 398 } 399 } 400 return NULL; 401} 402 403static vpx_codec_err_t decoder_set_fb_fn( 404 vpx_codec_alg_priv_t *ctx, vpx_get_frame_buffer_cb_fn_t cb_get, 405 vpx_release_frame_buffer_cb_fn_t cb_release, void *cb_priv) { 406 if (cb_get == NULL || cb_release == NULL) { 407 return VPX_CODEC_INVALID_PARAM; 408 } else if (ctx->pbi == NULL) { 409 // If the decoder has already been initialized, do not accept changes to 410 // the frame buffer functions. 411 ctx->get_ext_fb_cb = cb_get; 412 ctx->release_ext_fb_cb = cb_release; 413 ctx->ext_priv = cb_priv; 414 return VPX_CODEC_OK; 415 } 416 417 return VPX_CODEC_ERROR; 418} 419 420static vpx_codec_err_t ctrl_set_reference(vpx_codec_alg_priv_t *ctx, 421 va_list args) { 422 vpx_ref_frame_t *const data = va_arg(args, vpx_ref_frame_t *); 423 424 if (data) { 425 vpx_ref_frame_t *const frame = (vpx_ref_frame_t *)data; 426 YV12_BUFFER_CONFIG sd; 427 image2yuvconfig(&frame->img, &sd); 428 return vp9_set_reference_dec( 429 &ctx->pbi->common, ref_frame_to_vp9_reframe(frame->frame_type), &sd); 430 } else { 431 return VPX_CODEC_INVALID_PARAM; 432 } 433} 434 435static vpx_codec_err_t ctrl_copy_reference(vpx_codec_alg_priv_t *ctx, 436 va_list args) { 437 vpx_ref_frame_t *data = va_arg(args, vpx_ref_frame_t *); 438 439 if (data) { 440 vpx_ref_frame_t *frame = (vpx_ref_frame_t *)data; 441 YV12_BUFFER_CONFIG sd; 442 image2yuvconfig(&frame->img, &sd); 443 return vp9_copy_reference_dec(ctx->pbi, (VP9_REFFRAME)frame->frame_type, 444 &sd); 445 } else { 446 return VPX_CODEC_INVALID_PARAM; 447 } 448} 449 450static vpx_codec_err_t ctrl_get_reference(vpx_codec_alg_priv_t *ctx, 451 va_list args) { 452 vp9_ref_frame_t *data = va_arg(args, vp9_ref_frame_t *); 453 454 if (data) { 455 YV12_BUFFER_CONFIG *fb; 456 fb = get_ref_frame(&ctx->pbi->common, data->idx); 457 if (fb == NULL) return VPX_CODEC_ERROR; 458 yuvconfig2image(&data->img, fb, NULL); 459 return VPX_CODEC_OK; 460 } else { 461 return VPX_CODEC_INVALID_PARAM; 462 } 463} 464 465static vpx_codec_err_t ctrl_set_postproc(vpx_codec_alg_priv_t *ctx, 466 va_list args) { 467#if CONFIG_VP9_POSTPROC 468 vp8_postproc_cfg_t *data = va_arg(args, vp8_postproc_cfg_t *); 469 470 if (data) { 471 ctx->postproc_cfg_set = 1; 472 ctx->postproc_cfg = *((vp8_postproc_cfg_t *)data); 473 return VPX_CODEC_OK; 474 } else { 475 return VPX_CODEC_INVALID_PARAM; 476 } 477#else 478 (void)ctx; 479 (void)args; 480 return VPX_CODEC_INCAPABLE; 481#endif 482} 483 484static vpx_codec_err_t ctrl_get_quantizer(vpx_codec_alg_priv_t *ctx, 485 va_list args) { 486 int *const arg = va_arg(args, int *); 487 if (arg == NULL || ctx->pbi == NULL) return VPX_CODEC_INVALID_PARAM; 488 *arg = ctx->pbi->common.base_qindex; 489 return VPX_CODEC_OK; 490} 491 492static vpx_codec_err_t ctrl_get_last_ref_updates(vpx_codec_alg_priv_t *ctx, 493 va_list args) { 494 int *const update_info = va_arg(args, int *); 495 496 if (update_info) { 497 if (ctx->pbi != NULL) { 498 *update_info = ctx->pbi->refresh_frame_flags; 499 return VPX_CODEC_OK; 500 } else { 501 return VPX_CODEC_ERROR; 502 } 503 } 504 505 return VPX_CODEC_INVALID_PARAM; 506} 507 508static vpx_codec_err_t ctrl_get_frame_corrupted(vpx_codec_alg_priv_t *ctx, 509 va_list args) { 510 int *corrupted = va_arg(args, int *); 511 512 if (corrupted) { 513 if (ctx->pbi != NULL) { 514 RefCntBuffer *const frame_bufs = ctx->pbi->common.buffer_pool->frame_bufs; 515 if (ctx->pbi->common.frame_to_show == NULL) return VPX_CODEC_ERROR; 516 if (ctx->last_show_frame >= 0) 517 *corrupted = frame_bufs[ctx->last_show_frame].buf.corrupted; 518 return VPX_CODEC_OK; 519 } else { 520 return VPX_CODEC_ERROR; 521 } 522 } 523 524 return VPX_CODEC_INVALID_PARAM; 525} 526 527static vpx_codec_err_t ctrl_get_frame_size(vpx_codec_alg_priv_t *ctx, 528 va_list args) { 529 int *const frame_size = va_arg(args, int *); 530 531 if (frame_size) { 532 if (ctx->pbi != NULL) { 533 const VP9_COMMON *const cm = &ctx->pbi->common; 534 frame_size[0] = cm->width; 535 frame_size[1] = cm->height; 536 return VPX_CODEC_OK; 537 } else { 538 return VPX_CODEC_ERROR; 539 } 540 } 541 542 return VPX_CODEC_INVALID_PARAM; 543} 544 545static vpx_codec_err_t ctrl_get_render_size(vpx_codec_alg_priv_t *ctx, 546 va_list args) { 547 int *const render_size = va_arg(args, int *); 548 549 if (render_size) { 550 if (ctx->pbi != NULL) { 551 const VP9_COMMON *const cm = &ctx->pbi->common; 552 render_size[0] = cm->render_width; 553 render_size[1] = cm->render_height; 554 return VPX_CODEC_OK; 555 } else { 556 return VPX_CODEC_ERROR; 557 } 558 } 559 560 return VPX_CODEC_INVALID_PARAM; 561} 562 563static vpx_codec_err_t ctrl_get_bit_depth(vpx_codec_alg_priv_t *ctx, 564 va_list args) { 565 unsigned int *const bit_depth = va_arg(args, unsigned int *); 566 567 if (bit_depth) { 568 if (ctx->pbi != NULL) { 569 const VP9_COMMON *const cm = &ctx->pbi->common; 570 *bit_depth = cm->bit_depth; 571 return VPX_CODEC_OK; 572 } else { 573 return VPX_CODEC_ERROR; 574 } 575 } 576 577 return VPX_CODEC_INVALID_PARAM; 578} 579 580static vpx_codec_err_t ctrl_set_invert_tile_order(vpx_codec_alg_priv_t *ctx, 581 va_list args) { 582 ctx->invert_tile_order = va_arg(args, int); 583 return VPX_CODEC_OK; 584} 585 586static vpx_codec_err_t ctrl_set_decryptor(vpx_codec_alg_priv_t *ctx, 587 va_list args) { 588 vpx_decrypt_init *init = va_arg(args, vpx_decrypt_init *); 589 ctx->decrypt_cb = init ? init->decrypt_cb : NULL; 590 ctx->decrypt_state = init ? init->decrypt_state : NULL; 591 return VPX_CODEC_OK; 592} 593 594static vpx_codec_err_t ctrl_set_byte_alignment(vpx_codec_alg_priv_t *ctx, 595 va_list args) { 596 const int legacy_byte_alignment = 0; 597 const int min_byte_alignment = 32; 598 const int max_byte_alignment = 1024; 599 const int byte_alignment = va_arg(args, int); 600 601 if (byte_alignment != legacy_byte_alignment && 602 (byte_alignment < min_byte_alignment || 603 byte_alignment > max_byte_alignment || 604 (byte_alignment & (byte_alignment - 1)) != 0)) 605 return VPX_CODEC_INVALID_PARAM; 606 607 ctx->byte_alignment = byte_alignment; 608 if (ctx->pbi != NULL) { 609 ctx->pbi->common.byte_alignment = byte_alignment; 610 } 611 return VPX_CODEC_OK; 612} 613 614static vpx_codec_err_t ctrl_set_skip_loop_filter(vpx_codec_alg_priv_t *ctx, 615 va_list args) { 616 ctx->skip_loop_filter = va_arg(args, int); 617 618 if (ctx->pbi != NULL) { 619 ctx->pbi->common.skip_loop_filter = ctx->skip_loop_filter; 620 } 621 622 return VPX_CODEC_OK; 623} 624 625static vpx_codec_err_t ctrl_set_spatial_layer_svc(vpx_codec_alg_priv_t *ctx, 626 va_list args) { 627 ctx->svc_decoding = 1; 628 ctx->svc_spatial_layer = va_arg(args, int); 629 if (ctx->svc_spatial_layer < 0) 630 return VPX_CODEC_INVALID_PARAM; 631 else 632 return VPX_CODEC_OK; 633} 634 635static vpx_codec_ctrl_fn_map_t decoder_ctrl_maps[] = { 636 { VP8_COPY_REFERENCE, ctrl_copy_reference }, 637 638 // Setters 639 { VP8_SET_REFERENCE, ctrl_set_reference }, 640 { VP8_SET_POSTPROC, ctrl_set_postproc }, 641 { VP9_INVERT_TILE_DECODE_ORDER, ctrl_set_invert_tile_order }, 642 { VPXD_SET_DECRYPTOR, ctrl_set_decryptor }, 643 { VP9_SET_BYTE_ALIGNMENT, ctrl_set_byte_alignment }, 644 { VP9_SET_SKIP_LOOP_FILTER, ctrl_set_skip_loop_filter }, 645 { VP9_DECODE_SVC_SPATIAL_LAYER, ctrl_set_spatial_layer_svc }, 646 647 // Getters 648 { VPXD_GET_LAST_QUANTIZER, ctrl_get_quantizer }, 649 { VP8D_GET_LAST_REF_UPDATES, ctrl_get_last_ref_updates }, 650 { VP8D_GET_FRAME_CORRUPTED, ctrl_get_frame_corrupted }, 651 { VP9_GET_REFERENCE, ctrl_get_reference }, 652 { VP9D_GET_DISPLAY_SIZE, ctrl_get_render_size }, 653 { VP9D_GET_BIT_DEPTH, ctrl_get_bit_depth }, 654 { VP9D_GET_FRAME_SIZE, ctrl_get_frame_size }, 655 656 { -1, NULL }, 657}; 658 659#ifndef VERSION_STRING 660#define VERSION_STRING 661#endif 662CODEC_INTERFACE(vpx_codec_vp9_dx) = { 663 "WebM Project VP9 Decoder" VERSION_STRING, 664 VPX_CODEC_INTERNAL_ABI_VERSION, 665#if CONFIG_VP9_HIGHBITDEPTH 666 VPX_CODEC_CAP_HIGHBITDEPTH | 667#endif 668 VPX_CODEC_CAP_DECODER | VP9_CAP_POSTPROC | 669 VPX_CODEC_CAP_EXTERNAL_FRAME_BUFFER, // vpx_codec_caps_t 670 decoder_init, // vpx_codec_init_fn_t 671 decoder_destroy, // vpx_codec_destroy_fn_t 672 decoder_ctrl_maps, // vpx_codec_ctrl_fn_map_t 673 { 674 // NOLINT 675 decoder_peek_si, // vpx_codec_peek_si_fn_t 676 decoder_get_si, // vpx_codec_get_si_fn_t 677 decoder_decode, // vpx_codec_decode_fn_t 678 decoder_get_frame, // vpx_codec_frame_get_fn_t 679 decoder_set_fb_fn, // vpx_codec_set_fb_fn_t 680 }, 681 { 682 // NOLINT 683 0, 684 NULL, // vpx_codec_enc_cfg_map_t 685 NULL, // vpx_codec_encode_fn_t 686 NULL, // vpx_codec_get_cx_data_fn_t 687 NULL, // vpx_codec_enc_config_set_fn_t 688 NULL, // vpx_codec_get_global_headers_fn_t 689 NULL, // vpx_codec_get_preview_frame_fn_t 690 NULL // vpx_codec_enc_mr_get_mem_loc_fn_t 691 } 692}; 693