1/* 2 * AV1 HW decode acceleration through VA API 3 * 4 * This file is part of FFmpeg. 5 * 6 * FFmpeg is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Lesser General Public 8 * License as published by the Free Software Foundation; either 9 * version 2.1 of the License, or (at your option) any later version. 10 * 11 * FFmpeg is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Lesser General Public License for more details. 15 * 16 * You should have received a copy of the GNU Lesser General Public 17 * License along with FFmpeg; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 19 */ 20 21#include "libavutil/frame.h" 22#include "libavutil/pixdesc.h" 23#include "hwconfig.h" 24#include "vaapi_decode.h" 25#include "internal.h" 26#include "av1dec.h" 27#include "thread.h" 28 29typedef struct VAAPIAV1FrameRef { 30 AVFrame *frame; 31 int valid; 32} VAAPIAV1FrameRef; 33 34typedef struct VAAPIAV1DecContext { 35 VAAPIDecodeContext base; 36 37 /** 38 * For film grain case, VAAPI generate 2 output for each frame, 39 * current_frame will not apply film grain, and will be used for 40 * references for next frames. Maintain the reference list without 41 * applying film grain here. And current_display_picture will be 42 * used to apply film grain and push to downstream. 43 */ 44 VAAPIAV1FrameRef ref_tab[AV1_NUM_REF_FRAMES]; 45 AVFrame *tmp_frame; 46} VAAPIAV1DecContext; 47 48static VASurfaceID vaapi_av1_surface_id(AV1Frame *vf) 49{ 50 if (vf) 51 return ff_vaapi_get_surface_id(vf->f); 52 else 53 return VA_INVALID_SURFACE; 54} 55 56static int8_t vaapi_av1_get_bit_depth_idx(AVCodecContext *avctx) 57{ 58 AV1DecContext *s = avctx->priv_data; 59 const AV1RawSequenceHeader *seq = s->raw_seq; 60 int8_t bit_depth = 8; 61 62 if (seq->seq_profile == 2 && seq->color_config.high_bitdepth) 63 bit_depth = seq->color_config.twelve_bit ? 12 : 10; 64 else if (seq->seq_profile <= 2) 65 bit_depth = seq->color_config.high_bitdepth ? 10 : 8; 66 else { 67 av_log(avctx, AV_LOG_ERROR, 68 "Couldn't get bit depth from profile:%d.\n", seq->seq_profile); 69 return -1; 70 } 71 return bit_depth == 8 ? 0 : bit_depth == 10 ? 1 : 2; 72} 73 74static int vaapi_av1_decode_init(AVCodecContext *avctx) 75{ 76 VAAPIAV1DecContext *ctx = avctx->internal->hwaccel_priv_data; 77 78 ctx->tmp_frame = av_frame_alloc(); 79 if (!ctx->tmp_frame) { 80 av_log(avctx, AV_LOG_ERROR, 81 "Failed to allocate frame.\n"); 82 return AVERROR(ENOMEM); 83 } 84 85 for (int i = 0; i < FF_ARRAY_ELEMS(ctx->ref_tab); i++) { 86 ctx->ref_tab[i].frame = av_frame_alloc(); 87 if (!ctx->ref_tab[i].frame) { 88 av_log(avctx, AV_LOG_ERROR, 89 "Failed to allocate reference table frame %d.\n", i); 90 return AVERROR(ENOMEM); 91 } 92 ctx->ref_tab[i].valid = 0; 93 } 94 95 return ff_vaapi_decode_init(avctx); 96} 97 98static int vaapi_av1_decode_uninit(AVCodecContext *avctx) 99{ 100 VAAPIAV1DecContext *ctx = avctx->internal->hwaccel_priv_data; 101 102 if (ctx->tmp_frame->buf[0]) 103 ff_thread_release_buffer(avctx, ctx->tmp_frame); 104 av_frame_free(&ctx->tmp_frame); 105 106 for (int i = 0; i < FF_ARRAY_ELEMS(ctx->ref_tab); i++) { 107 if (ctx->ref_tab[i].frame->buf[0]) 108 ff_thread_release_buffer(avctx, ctx->ref_tab[i].frame); 109 av_frame_free(&ctx->ref_tab[i].frame); 110 } 111 112 return ff_vaapi_decode_uninit(avctx); 113} 114 115 116static int vaapi_av1_start_frame(AVCodecContext *avctx, 117 av_unused const uint8_t *buffer, 118 av_unused uint32_t size) 119{ 120 AV1DecContext *s = avctx->priv_data; 121 const AV1RawSequenceHeader *seq = s->raw_seq; 122 const AV1RawFrameHeader *frame_header = s->raw_frame_header; 123 const AV1RawFilmGrainParams *film_grain = &s->cur_frame.film_grain; 124 VAAPIDecodePicture *pic = s->cur_frame.hwaccel_picture_private; 125 VAAPIAV1DecContext *ctx = avctx->internal->hwaccel_priv_data; 126 VADecPictureParameterBufferAV1 pic_param; 127 int8_t bit_depth_idx; 128 int err = 0; 129 int apply_grain = !(avctx->export_side_data & AV_CODEC_EXPORT_DATA_FILM_GRAIN) && film_grain->apply_grain; 130 uint8_t remap_lr_type[4] = {AV1_RESTORE_NONE, AV1_RESTORE_SWITCHABLE, AV1_RESTORE_WIENER, AV1_RESTORE_SGRPROJ}; 131 uint8_t segmentation_feature_signed[AV1_SEG_LVL_MAX] = {1, 1, 1, 1, 1, 0, 0, 0}; 132 uint8_t segmentation_feature_max[AV1_SEG_LVL_MAX] = {255, AV1_MAX_LOOP_FILTER, 133 AV1_MAX_LOOP_FILTER, AV1_MAX_LOOP_FILTER, AV1_MAX_LOOP_FILTER, 7 , 0 , 0 }; 134 135 bit_depth_idx = vaapi_av1_get_bit_depth_idx(avctx); 136 if (bit_depth_idx < 0) 137 goto fail; 138 139 if (apply_grain) { 140 if (ctx->tmp_frame->buf[0]) 141 ff_thread_release_buffer(avctx, ctx->tmp_frame); 142 err = ff_thread_get_buffer(avctx, ctx->tmp_frame, AV_GET_BUFFER_FLAG_REF); 143 if (err < 0) 144 goto fail; 145 pic->output_surface = ff_vaapi_get_surface_id(ctx->tmp_frame); 146 } else { 147 pic->output_surface = vaapi_av1_surface_id(&s->cur_frame); 148 } 149 150 memset(&pic_param, 0, sizeof(VADecPictureParameterBufferAV1)); 151 pic_param = (VADecPictureParameterBufferAV1) { 152 .profile = seq->seq_profile, 153 .order_hint_bits_minus_1 = seq->order_hint_bits_minus_1, 154 .bit_depth_idx = bit_depth_idx, 155 .matrix_coefficients = seq->color_config.matrix_coefficients, 156 .current_frame = pic->output_surface, 157 .current_display_picture = vaapi_av1_surface_id(&s->cur_frame), 158 .frame_width_minus1 = frame_header->frame_width_minus_1, 159 .frame_height_minus1 = frame_header->frame_height_minus_1, 160 .primary_ref_frame = frame_header->primary_ref_frame, 161 .order_hint = frame_header->order_hint, 162 .tile_cols = frame_header->tile_cols, 163 .tile_rows = frame_header->tile_rows, 164 .context_update_tile_id = frame_header->context_update_tile_id, 165 .superres_scale_denominator = frame_header->use_superres ? 166 frame_header->coded_denom + AV1_SUPERRES_DENOM_MIN : 167 AV1_SUPERRES_NUM, 168 .interp_filter = frame_header->interpolation_filter, 169 .filter_level[0] = frame_header->loop_filter_level[0], 170 .filter_level[1] = frame_header->loop_filter_level[1], 171 .filter_level_u = frame_header->loop_filter_level[2], 172 .filter_level_v = frame_header->loop_filter_level[3], 173 .base_qindex = frame_header->base_q_idx, 174 .y_dc_delta_q = frame_header->delta_q_y_dc, 175 .u_dc_delta_q = frame_header->delta_q_u_dc, 176 .u_ac_delta_q = frame_header->delta_q_u_ac, 177 .v_dc_delta_q = frame_header->delta_q_v_dc, 178 .v_ac_delta_q = frame_header->delta_q_v_ac, 179 .cdef_damping_minus_3 = frame_header->cdef_damping_minus_3, 180 .cdef_bits = frame_header->cdef_bits, 181 .seq_info_fields.fields = { 182 .still_picture = seq->still_picture, 183 .use_128x128_superblock = seq->use_128x128_superblock, 184 .enable_filter_intra = seq->enable_filter_intra, 185 .enable_intra_edge_filter = seq->enable_intra_edge_filter, 186 .enable_interintra_compound = seq->enable_interintra_compound, 187 .enable_masked_compound = seq->enable_masked_compound, 188 .enable_dual_filter = seq->enable_dual_filter, 189 .enable_order_hint = seq->enable_order_hint, 190 .enable_jnt_comp = seq->enable_jnt_comp, 191 .enable_cdef = seq->enable_cdef, 192 .mono_chrome = seq->color_config.mono_chrome, 193 .color_range = seq->color_config.color_range, 194 .subsampling_x = seq->color_config.subsampling_x, 195 .subsampling_y = seq->color_config.subsampling_y, 196 .chroma_sample_position = seq->color_config.chroma_sample_position, 197 .film_grain_params_present = seq->film_grain_params_present && 198 !(avctx->export_side_data & AV_CODEC_EXPORT_DATA_FILM_GRAIN), 199 }, 200 .seg_info.segment_info_fields.bits = { 201 .enabled = frame_header->segmentation_enabled, 202 .update_map = frame_header->segmentation_update_map, 203 .temporal_update = frame_header->segmentation_temporal_update, 204 .update_data = frame_header->segmentation_update_data, 205 }, 206 .film_grain_info = { 207 .film_grain_info_fields.bits = { 208 .apply_grain = apply_grain, 209 .chroma_scaling_from_luma = film_grain->chroma_scaling_from_luma, 210 .grain_scaling_minus_8 = film_grain->grain_scaling_minus_8, 211 .ar_coeff_lag = film_grain->ar_coeff_lag, 212 .ar_coeff_shift_minus_6 = film_grain->ar_coeff_shift_minus_6, 213 .grain_scale_shift = film_grain->grain_scale_shift, 214 .overlap_flag = film_grain->overlap_flag, 215 .clip_to_restricted_range = film_grain->clip_to_restricted_range, 216 }, 217 .grain_seed = film_grain->grain_seed, 218 .num_y_points = film_grain->num_y_points, 219 .num_cb_points = film_grain->num_cb_points, 220 .num_cr_points = film_grain->num_cr_points, 221 .cb_mult = film_grain->cb_mult, 222 .cb_luma_mult = film_grain->cb_luma_mult, 223 .cb_offset = film_grain->cb_offset, 224 .cr_mult = film_grain->cr_mult, 225 .cr_luma_mult = film_grain->cr_luma_mult, 226 .cr_offset = film_grain->cr_offset, 227 }, 228 .pic_info_fields.bits = { 229 .frame_type = frame_header->frame_type, 230 .show_frame = frame_header->show_frame, 231 .showable_frame = frame_header->showable_frame, 232 .error_resilient_mode = frame_header->error_resilient_mode, 233 .disable_cdf_update = frame_header->disable_cdf_update, 234 .allow_screen_content_tools = frame_header->allow_screen_content_tools, 235 .force_integer_mv = frame_header->force_integer_mv, 236 .allow_intrabc = frame_header->allow_intrabc, 237 .use_superres = frame_header->use_superres, 238 .allow_high_precision_mv = frame_header->allow_high_precision_mv, 239 .is_motion_mode_switchable = frame_header->is_motion_mode_switchable, 240 .use_ref_frame_mvs = frame_header->use_ref_frame_mvs, 241 .disable_frame_end_update_cdf = frame_header->disable_frame_end_update_cdf, 242 .uniform_tile_spacing_flag = frame_header->uniform_tile_spacing_flag, 243 .allow_warped_motion = frame_header->allow_warped_motion, 244 }, 245 .loop_filter_info_fields.bits = { 246 .sharpness_level = frame_header->loop_filter_sharpness, 247 .mode_ref_delta_enabled = frame_header->loop_filter_delta_enabled, 248 .mode_ref_delta_update = frame_header->loop_filter_delta_update, 249 }, 250 .mode_control_fields.bits = { 251 .delta_q_present_flag = frame_header->delta_q_present, 252 .log2_delta_q_res = frame_header->delta_q_res, 253 .delta_lf_present_flag = frame_header->delta_lf_present, 254 .log2_delta_lf_res = frame_header->delta_lf_res, 255 .delta_lf_multi = frame_header->delta_lf_multi, 256 .tx_mode = frame_header->tx_mode, 257 .reference_select = frame_header->reference_select, 258 .reduced_tx_set_used = frame_header->reduced_tx_set, 259 .skip_mode_present = frame_header->skip_mode_present, 260 }, 261 .loop_restoration_fields.bits = { 262 .yframe_restoration_type = remap_lr_type[frame_header->lr_type[0]], 263 .cbframe_restoration_type = remap_lr_type[frame_header->lr_type[1]], 264 .crframe_restoration_type = remap_lr_type[frame_header->lr_type[2]], 265 .lr_unit_shift = frame_header->lr_unit_shift, 266 .lr_uv_shift = frame_header->lr_uv_shift, 267 }, 268 .qmatrix_fields.bits = { 269 .using_qmatrix = frame_header->using_qmatrix, 270 .qm_y = frame_header->qm_y, 271 .qm_u = frame_header->qm_u, 272 .qm_v = frame_header->qm_v, 273 } 274 }; 275 276 for (int i = 0; i < AV1_NUM_REF_FRAMES; i++) { 277 if (pic_param.pic_info_fields.bits.frame_type == AV1_FRAME_KEY) 278 pic_param.ref_frame_map[i] = VA_INVALID_ID; 279 else 280 pic_param.ref_frame_map[i] = ctx->ref_tab[i].valid ? 281 ff_vaapi_get_surface_id(ctx->ref_tab[i].frame) : 282 vaapi_av1_surface_id(&s->ref[i]); 283 } 284 for (int i = 0; i < AV1_REFS_PER_FRAME; i++) { 285 pic_param.ref_frame_idx[i] = frame_header->ref_frame_idx[i]; 286 } 287 for (int i = 0; i < AV1_TOTAL_REFS_PER_FRAME; i++) { 288 pic_param.ref_deltas[i] = frame_header->loop_filter_ref_deltas[i]; 289 } 290 for (int i = 0; i < 2; i++) { 291 pic_param.mode_deltas[i] = frame_header->loop_filter_mode_deltas[i]; 292 } 293 for (int i = 0; i < (1 << frame_header->cdef_bits); i++) { 294 pic_param.cdef_y_strengths[i] = 295 (frame_header->cdef_y_pri_strength[i] << 2) + 296 frame_header->cdef_y_sec_strength[i]; 297 pic_param.cdef_uv_strengths[i] = 298 (frame_header->cdef_uv_pri_strength[i] << 2) + 299 frame_header->cdef_uv_sec_strength[i]; 300 } 301 for (int i = 0; i < frame_header->tile_cols; i++) { 302 pic_param.width_in_sbs_minus_1[i] = 303 frame_header->width_in_sbs_minus_1[i]; 304 } 305 for (int i = 0; i < frame_header->tile_rows; i++) { 306 pic_param.height_in_sbs_minus_1[i] = 307 frame_header->height_in_sbs_minus_1[i]; 308 } 309 for (int i = AV1_REF_FRAME_LAST; i <= AV1_REF_FRAME_ALTREF; i++) { 310 pic_param.wm[i - 1].invalid = s->cur_frame.gm_invalid[i]; 311 pic_param.wm[i - 1].wmtype = s->cur_frame.gm_type[i]; 312 for (int j = 0; j < 6; j++) 313 pic_param.wm[i - 1].wmmat[j] = s->cur_frame.gm_params[i][j]; 314 } 315 for (int i = 0; i < AV1_MAX_SEGMENTS; i++) { 316 for (int j = 0; j < AV1_SEG_LVL_MAX; j++) { 317 pic_param.seg_info.feature_mask[i] |= (frame_header->feature_enabled[i][j] << j); 318 if (segmentation_feature_signed[j]) 319 pic_param.seg_info.feature_data[i][j] = av_clip(frame_header->feature_value[i][j], 320 -segmentation_feature_max[j], segmentation_feature_max[j]); 321 else 322 pic_param.seg_info.feature_data[i][j] = av_clip(frame_header->feature_value[i][j], 323 0, segmentation_feature_max[j]); 324 } 325 } 326 if (apply_grain) { 327 for (int i = 0; i < film_grain->num_y_points; i++) { 328 pic_param.film_grain_info.point_y_value[i] = 329 film_grain->point_y_value[i]; 330 pic_param.film_grain_info.point_y_scaling[i] = 331 film_grain->point_y_scaling[i]; 332 } 333 for (int i = 0; i < film_grain->num_cb_points; i++) { 334 pic_param.film_grain_info.point_cb_value[i] = 335 film_grain->point_cb_value[i]; 336 pic_param.film_grain_info.point_cb_scaling[i] = 337 film_grain->point_cb_scaling[i]; 338 } 339 for (int i = 0; i < film_grain->num_cr_points; i++) { 340 pic_param.film_grain_info.point_cr_value[i] = 341 film_grain->point_cr_value[i]; 342 pic_param.film_grain_info.point_cr_scaling[i] = 343 film_grain->point_cr_scaling[i]; 344 } 345 for (int i = 0; i < 24; i++) { 346 pic_param.film_grain_info.ar_coeffs_y[i] = 347 film_grain->ar_coeffs_y_plus_128[i] - 128; 348 } 349 for (int i = 0; i < 25; i++) { 350 pic_param.film_grain_info.ar_coeffs_cb[i] = 351 film_grain->ar_coeffs_cb_plus_128[i] - 128; 352 pic_param.film_grain_info.ar_coeffs_cr[i] = 353 film_grain->ar_coeffs_cr_plus_128[i] - 128; 354 } 355 } 356 err = ff_vaapi_decode_make_param_buffer(avctx, pic, 357 VAPictureParameterBufferType, 358 &pic_param, sizeof(pic_param)); 359 if (err < 0) 360 goto fail; 361 362 return 0; 363 364fail: 365 ff_vaapi_decode_cancel(avctx, pic); 366 return err; 367} 368 369static int vaapi_av1_end_frame(AVCodecContext *avctx) 370{ 371 const AV1DecContext *s = avctx->priv_data; 372 const AV1RawFrameHeader *header = s->raw_frame_header; 373 const AV1RawFilmGrainParams *film_grain = &s->cur_frame.film_grain; 374 VAAPIDecodePicture *pic = s->cur_frame.hwaccel_picture_private; 375 VAAPIAV1DecContext *ctx = avctx->internal->hwaccel_priv_data; 376 377 int apply_grain = !(avctx->export_side_data & AV_CODEC_EXPORT_DATA_FILM_GRAIN) && film_grain->apply_grain; 378 int ret; 379 ret = ff_vaapi_decode_issue(avctx, pic); 380 if (ret < 0) 381 return ret; 382 383 for (int i = 0; i < AV1_NUM_REF_FRAMES; i++) { 384 if (header->refresh_frame_flags & (1 << i)) { 385 if (ctx->ref_tab[i].frame->buf[0]) 386 ff_thread_release_buffer(avctx, ctx->ref_tab[i].frame); 387 388 if (apply_grain) { 389 ret = av_frame_ref(ctx->ref_tab[i].frame, ctx->tmp_frame); 390 if (ret < 0) 391 return ret; 392 ctx->ref_tab[i].valid = 1; 393 } else { 394 ctx->ref_tab[i].valid = 0; 395 } 396 } 397 } 398 399 return 0; 400} 401 402static int vaapi_av1_decode_slice(AVCodecContext *avctx, 403 const uint8_t *buffer, 404 uint32_t size) 405{ 406 const AV1DecContext *s = avctx->priv_data; 407 VAAPIDecodePicture *pic = s->cur_frame.hwaccel_picture_private; 408 VASliceParameterBufferAV1 slice_param; 409 int err = 0; 410 411 for (int i = s->tg_start; i <= s->tg_end; i++) { 412 memset(&slice_param, 0, sizeof(VASliceParameterBufferAV1)); 413 414 slice_param = (VASliceParameterBufferAV1) { 415 .slice_data_size = s->tile_group_info[i].tile_size, 416 .slice_data_offset = s->tile_group_info[i].tile_offset, 417 .slice_data_flag = VA_SLICE_DATA_FLAG_ALL, 418 .tile_row = s->tile_group_info[i].tile_row, 419 .tile_column = s->tile_group_info[i].tile_column, 420 .tg_start = s->tg_start, 421 .tg_end = s->tg_end, 422 }; 423 424 err = ff_vaapi_decode_make_slice_buffer(avctx, pic, &slice_param, 425 sizeof(VASliceParameterBufferAV1), 426 buffer, 427 size); 428 if (err) { 429 ff_vaapi_decode_cancel(avctx, pic); 430 return err; 431 } 432 } 433 434 return 0; 435} 436 437const AVHWAccel ff_av1_vaapi_hwaccel = { 438 .name = "av1_vaapi", 439 .type = AVMEDIA_TYPE_VIDEO, 440 .id = AV_CODEC_ID_AV1, 441 .pix_fmt = AV_PIX_FMT_VAAPI, 442 .start_frame = vaapi_av1_start_frame, 443 .end_frame = vaapi_av1_end_frame, 444 .decode_slice = vaapi_av1_decode_slice, 445 .frame_priv_data_size = sizeof(VAAPIDecodePicture), 446 .init = vaapi_av1_decode_init, 447 .uninit = vaapi_av1_decode_uninit, 448 .frame_params = ff_vaapi_common_frame_params, 449 .priv_data_size = sizeof(VAAPIAV1DecContext), 450 .caps_internal = HWACCEL_CAP_ASYNC_SAFE, 451}; 452