/* * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include "av1dec.h" #include "vulkan_decode.h" /* Maximum number of tiles specified by any defined level */ #define MAX_TILES 256 const VkExtensionProperties ff_vk_dec_av1_ext = { .extensionName = VK_STD_VULKAN_VIDEO_CODEC_AV1_DECODE_EXTENSION_NAME, .specVersion = VK_STD_VULKAN_VIDEO_CODEC_AV1_DECODE_SPEC_VERSION, }; typedef struct AV1VulkanDecodePicture { FFVulkanDecodePicture vp; /* Workaround for a spec issue. *Can be removed once no longer needed, and threading can be enabled. */ FFVulkanDecodeContext *dec; StdVideoAV1MESATile tiles[MAX_TILES]; StdVideoAV1MESATileList tile_list; const uint32_t *tile_offsets; /* Current picture */ VkVideoDecodeAV1DpbSlotInfoMESA vkav1_ref; StdVideoAV1MESAFrameHeader av1_frame_header; VkVideoDecodeAV1PictureInfoMESA av1_pic_info; /* Picture refs */ const AV1Frame *ref_src [AV1_NUM_REF_FRAMES]; VkVideoDecodeAV1DpbSlotInfoMESA vkav1_refs[AV1_NUM_REF_FRAMES]; uint8_t frame_id_set; uint8_t frame_id; } AV1VulkanDecodePicture; static int vk_av1_fill_pict(AVCodecContext *avctx, const AV1Frame **ref_src, VkVideoReferenceSlotInfoKHR *ref_slot, /* Main structure */ VkVideoPictureResourceInfoKHR *ref, /* Goes in ^ */ VkVideoDecodeAV1DpbSlotInfoMESA *vkav1_ref, /* Goes in ^ */ const AV1Frame *pic, int is_current, int has_grain, int dpb_slot_index) { FFVulkanDecodeContext *dec = avctx->internal->hwaccel_priv_data; AV1VulkanDecodePicture *hp = pic->hwaccel_picture_private; FFVulkanDecodePicture *vkpic = &hp->vp; int err = ff_vk_decode_prepare_frame(dec, pic->f, vkpic, is_current, has_grain || dec->dedicated_dpb); if (err < 0) return err; *vkav1_ref = (VkVideoDecodeAV1DpbSlotInfoMESA) { .sType = VK_STRUCTURE_TYPE_VIDEO_DECODE_AV1_DPB_SLOT_INFO_MESA, .frameIdx = hp->frame_id, }; for (unsigned i = 0; i < 7; i++) { const int idx = pic->raw_frame_header->ref_frame_idx[i]; vkav1_ref->ref_order_hint[i] = pic->raw_frame_header->ref_order_hint[idx]; } vkav1_ref->disable_frame_end_update_cdf = pic->raw_frame_header->disable_frame_end_update_cdf; *ref = (VkVideoPictureResourceInfoKHR) { .sType = VK_STRUCTURE_TYPE_VIDEO_PICTURE_RESOURCE_INFO_KHR, .codedOffset = (VkOffset2D){ 0, 0 }, .codedExtent = (VkExtent2D){ pic->f->width, pic->f->height }, .baseArrayLayer = ((has_grain || dec->dedicated_dpb) && dec->layered_dpb) ? dpb_slot_index : 0, .imageViewBinding = vkpic->img_view_ref, }; *ref_slot = (VkVideoReferenceSlotInfoKHR) { .sType = VK_STRUCTURE_TYPE_VIDEO_REFERENCE_SLOT_INFO_KHR, .pNext = vkav1_ref, .slotIndex = dpb_slot_index, .pPictureResource = ref, }; if (ref_src) *ref_src = pic; return 0; } static int vk_av1_create_params(AVCodecContext *avctx, AVBufferRef **buf) { const AV1DecContext *s = avctx->priv_data; FFVulkanDecodeContext *dec = avctx->internal->hwaccel_priv_data; FFVulkanDecodeShared *ctx = (FFVulkanDecodeShared *)dec->shared_ref->data; const AV1RawSequenceHeader *seq = s->raw_seq; StdVideoAV1MESASequenceHeader av1_sequence_header; VkVideoDecodeAV1SessionParametersAddInfoMESA av1_params_info; VkVideoDecodeAV1SessionParametersCreateInfoMESA av1_params; VkVideoSessionParametersCreateInfoKHR session_params_create; int err; av1_sequence_header = (StdVideoAV1MESASequenceHeader) { .flags = (StdVideoAV1MESASequenceHeaderFlags) { .still_picture = seq->still_picture, .reduced_still_picture_header = seq->reduced_still_picture_header, .use_128x128_superblock = seq->use_128x128_superblock, .enable_filter_intra = seq->enable_filter_intra, .enable_intra_edge_filter = seq->enable_intra_edge_filter, .enable_interintra_compound = seq->enable_interintra_compound, .enable_masked_compound = seq->enable_masked_compound, .enable_warped_motion = seq->enable_warped_motion, .enable_dual_filter = seq->enable_dual_filter, .enable_order_hint = seq->enable_order_hint, .enable_jnt_comp = seq->enable_jnt_comp, .enable_ref_frame_mvs = seq->enable_ref_frame_mvs, .frame_id_numbers_present_flag = seq->frame_id_numbers_present_flag, .enable_superres = seq->enable_superres, .enable_cdef = seq->enable_cdef, .enable_restoration = seq->enable_restoration, .film_grain_params_present = seq->film_grain_params_present, .timing_info_present_flag = seq->timing_info_present_flag, .initial_display_delay_present_flag = seq->initial_display_delay_present_flag, }, .seq_profile = seq->seq_profile, .frame_width_bits_minus_1 = seq->frame_width_bits_minus_1, .frame_height_bits_minus_1 = seq->frame_height_bits_minus_1, .max_frame_width_minus_1 = seq->max_frame_width_minus_1, .max_frame_height_minus_1 = seq->max_frame_height_minus_1, .delta_frame_id_length_minus_2 = seq->delta_frame_id_length_minus_2, .additional_frame_id_length_minus_1 = seq->additional_frame_id_length_minus_1, .order_hint_bits_minus_1 = seq->order_hint_bits_minus_1, .timing_info = (StdVideoAV1MESATimingInfo) { .flags = (StdVideoAV1MESATimingInfoFlags) { .equal_picture_interval = seq->timing_info.equal_picture_interval, }, .num_units_in_display_tick = seq->timing_info.num_units_in_display_tick, .time_scale = seq->timing_info.time_scale, .num_ticks_per_picture_minus_1 = seq->timing_info.num_ticks_per_picture_minus_1, }, .color_config = (StdVideoAV1MESAColorConfig) { .flags = (StdVideoAV1MESAColorConfigFlags) { .mono_chrome = seq->color_config.mono_chrome, .color_range = seq->color_config.color_range, .separate_uv_delta_q = seq->color_config.separate_uv_delta_q, }, .bit_depth = seq->color_config.twelve_bit ? 12 : seq->color_config.high_bitdepth ? 10 : 8, .subsampling_x = seq->color_config.subsampling_x, .subsampling_y = seq->color_config.subsampling_y, }, }; av1_params_info = (VkVideoDecodeAV1SessionParametersAddInfoMESA) { .sType = VK_STRUCTURE_TYPE_VIDEO_DECODE_AV1_SESSION_PARAMETERS_ADD_INFO_MESA, .sequence_header = &av1_sequence_header, }; av1_params = (VkVideoDecodeAV1SessionParametersCreateInfoMESA) { .sType = VK_STRUCTURE_TYPE_VIDEO_DECODE_AV1_SESSION_PARAMETERS_CREATE_INFO_MESA, .pParametersAddInfo = &av1_params_info, }; session_params_create = (VkVideoSessionParametersCreateInfoKHR) { .sType = VK_STRUCTURE_TYPE_VIDEO_SESSION_PARAMETERS_CREATE_INFO_KHR, .pNext = &av1_params, .videoSession = ctx->common.session, .videoSessionParametersTemplate = NULL, }; err = ff_vk_decode_create_params(buf, avctx, ctx, &session_params_create); if (err < 0) return err; av_log(avctx, AV_LOG_DEBUG, "Created frame parameters\n"); return 0; } static int vk_av1_start_frame(AVCodecContext *avctx, av_unused const uint8_t *buffer, av_unused uint32_t size) { int err; int ref_count = 0; AV1DecContext *s = avctx->priv_data; const AV1Frame *pic = &s->cur_frame; FFVulkanDecodeContext *dec = avctx->internal->hwaccel_priv_data; AV1VulkanDecodePicture *ap = pic->hwaccel_picture_private; FFVulkanDecodePicture *vp = &ap->vp; const AV1RawFrameHeader *frame_header = s->raw_frame_header; const AV1RawFilmGrainParams *film_grain = &s->cur_frame.film_grain; const int apply_grain = !(avctx->export_side_data & AV_CODEC_EXPORT_DATA_FILM_GRAIN) && film_grain->apply_grain; if (!dec->session_params) { err = vk_av1_create_params(avctx, &dec->session_params); if (err < 0) return err; } if (!ap->frame_id_set) { unsigned slot_idx = 0; for (unsigned i = 0; i < 32; i++) { if (!(dec->frame_id_alloc_mask & (1 << i))) { slot_idx = i; break; } } ap->frame_id = slot_idx; ap->frame_id_set = 1; dec->frame_id_alloc_mask |= (1 << slot_idx); } /* Fill in references */ for (int i = 0; i < AV1_NUM_REF_FRAMES; i++) { const AV1Frame *ref_frame = &s->ref[i]; if (s->ref[i].f->pict_type == AV_PICTURE_TYPE_NONE) continue; err = vk_av1_fill_pict(avctx, &ap->ref_src[i], &vp->ref_slots[i], &vp->refs[i], &ap->vkav1_refs[i], ref_frame, 0, 0, i); if (err < 0) return err; ref_count++; } err = vk_av1_fill_pict(avctx, NULL, &vp->ref_slot, &vp->ref, &ap->vkav1_ref, pic, 1, apply_grain, 8); if (err < 0) return err; ap->tile_list.nb_tiles = 0; ap->tile_list.tile_list = ap->tiles; ap->av1_pic_info = (VkVideoDecodeAV1PictureInfoMESA) { .sType = VK_STRUCTURE_TYPE_VIDEO_DECODE_AV1_PICTURE_INFO_MESA, .frame_header = &ap->av1_frame_header, .tile_list = &ap->tile_list, }; vp->decode_info = (VkVideoDecodeInfoKHR) { .sType = VK_STRUCTURE_TYPE_VIDEO_DECODE_INFO_KHR, .pNext = &ap->av1_pic_info, .flags = 0x0, .pSetupReferenceSlot = &vp->ref_slot, .referenceSlotCount = ref_count, .pReferenceSlots = vp->ref_slots, .dstPictureResource = (VkVideoPictureResourceInfoKHR) { .sType = VK_STRUCTURE_TYPE_VIDEO_PICTURE_RESOURCE_INFO_KHR, .codedOffset = (VkOffset2D){ 0, 0 }, .codedExtent = (VkExtent2D){ pic->f->width, pic->f->height }, .baseArrayLayer = 0, .imageViewBinding = vp->img_view_out, }, }; /* Setup frame header */ ap->av1_frame_header = (StdVideoAV1MESAFrameHeader) { .flags = (StdVideoAV1MESAFrameHeaderFlags) { .error_resilient_mode = frame_header->error_resilient_mode, .disable_cdf_update = frame_header->disable_cdf_update, .use_superres = frame_header->use_superres, .render_and_frame_size_different = frame_header->render_and_frame_size_different, .allow_screen_content_tools = frame_header->allow_screen_content_tools, .is_filter_switchable = frame_header->is_filter_switchable, .force_integer_mv = frame_header->force_integer_mv, .frame_size_override_flag = frame_header->frame_size_override_flag, .buffer_removal_time_present_flag = frame_header->buffer_removal_time_present_flag, .allow_intrabc = frame_header->allow_intrabc, .frame_refs_short_signaling = frame_header->frame_refs_short_signaling, .allow_high_precision_mv = frame_header->allow_high_precision_mv, .is_motion_mode_switchable = frame_header->is_motion_mode_switchable, .use_ref_frame_mvs = frame_header->use_ref_frame_mvs, .disable_frame_end_update_cdf = frame_header->disable_frame_end_update_cdf, .allow_warped_motion = frame_header->allow_warped_motion, .reduced_tx_set = frame_header->reduced_tx_set, .reference_select = frame_header->reference_select, .skip_mode_present = frame_header->skip_mode_present, .delta_q_present = frame_header->delta_q_present, }, .frame_to_show_map_idx = frame_header->frame_to_show_map_idx, .frame_presentation_time = frame_header->frame_presentation_time, .display_frame_id = frame_header->display_frame_id, .frame_type = frame_header->frame_type, .current_frame_id = frame_header->current_frame_id, .order_hint = frame_header->order_hint, .primary_ref_frame = frame_header->primary_ref_frame, .frame_width_minus_1 = frame_header->frame_width_minus_1, .frame_height_minus_1 = frame_header->frame_height_minus_1, .coded_denom = frame_header->coded_denom, .render_width_minus_1 = frame_header->render_width_minus_1, .render_height_minus_1 = frame_header->render_height_minus_1, .refresh_frame_flags = frame_header->refresh_frame_flags, .interpolation_filter = frame_header->interpolation_filter, .tx_mode = frame_header->tx_mode, .tiling = (StdVideoAV1MESATileInfo) { .flags = (StdVideoAV1MESATileInfoFlags) { .uniform_tile_spacing_flag = frame_header->uniform_tile_spacing_flag, }, .tile_cols = frame_header->tile_cols, .tile_rows = frame_header->tile_rows, .context_update_tile_id = frame_header->context_update_tile_id, .tile_size_bytes_minus1 = frame_header->tile_size_bytes_minus1, }, .quantization = (StdVideoAV1MESAQuantization) { .flags.using_qmatrix = frame_header->using_qmatrix, .base_q_idx = frame_header->base_q_idx, .delta_q_y_dc = frame_header->delta_q_y_dc, .diff_uv_delta = frame_header->diff_uv_delta, .delta_q_u_dc = frame_header->delta_q_u_dc, .delta_q_u_ac = frame_header->delta_q_u_ac, .delta_q_v_dc = frame_header->delta_q_v_dc, .delta_q_v_ac = frame_header->delta_q_v_ac, .qm_y = frame_header->qm_y, .qm_u = frame_header->qm_u, .qm_v = frame_header->qm_v, }, .delta_q = (StdVideoAV1MESADeltaQ) { .flags = (StdVideoAV1MESADeltaQFlags) { .delta_lf_present = frame_header->delta_lf_present, .delta_lf_multi = frame_header->delta_lf_multi, }, .delta_q_res = frame_header->delta_q_res, .delta_lf_res = frame_header->delta_lf_res, }, .loop_filter = (StdVideoAV1MESALoopFilter) { .flags = (StdVideoAV1MESALoopFilterFlags) { .delta_enabled = frame_header->loop_filter_delta_enabled, .delta_update = frame_header->loop_filter_delta_update, }, .level = { frame_header->loop_filter_level[0], frame_header->loop_filter_level[1], frame_header->loop_filter_level[2], frame_header->loop_filter_level[3], }, .sharpness = frame_header->loop_filter_sharpness, .mode_deltas = { frame_header->loop_filter_mode_deltas[0], frame_header->loop_filter_mode_deltas[1], }, }, .cdef = (StdVideoAV1MESACDEF) { .damping_minus_3 = frame_header->cdef_damping_minus_3, .bits = frame_header->cdef_bits, }, .lr = (StdVideoAV1MESALoopRestoration) { .lr_unit_shift = frame_header->lr_unit_shift, .lr_uv_shift = frame_header->lr_uv_shift, .lr_type = { frame_header->lr_type[0], frame_header->lr_type[1], frame_header->lr_type[2] }, }, .segmentation = (StdVideoAV1MESASegmentation) { .flags = (StdVideoAV1MESASegmentationFlags) { .enabled = frame_header->segmentation_enabled, .update_map = frame_header->segmentation_update_map, .temporal_update = frame_header->segmentation_temporal_update, .update_data = frame_header->segmentation_update_data, }, }, .film_grain = (StdVideoAV1MESAFilmGrainParameters) { .flags = (StdVideoAV1MESAFilmGrainFlags) { .apply_grain = apply_grain, .chroma_scaling_from_luma = film_grain->chroma_scaling_from_luma, .overlap_flag = film_grain->overlap_flag, .clip_to_restricted_range = film_grain->clip_to_restricted_range, }, .grain_scaling_minus_8 = film_grain->grain_scaling_minus_8, .ar_coeff_lag = film_grain->ar_coeff_lag, .ar_coeff_shift_minus_6 = film_grain->ar_coeff_shift_minus_6, .grain_scale_shift = film_grain->grain_scale_shift, .grain_seed = film_grain->grain_seed, .num_y_points = film_grain->num_y_points, .num_cb_points = film_grain->num_cb_points, .num_cr_points = film_grain->num_cr_points, .cb_mult = film_grain->cb_mult, .cb_luma_mult = film_grain->cb_luma_mult, .cb_offset = film_grain->cb_offset, .cr_mult = film_grain->cr_mult, .cr_luma_mult = film_grain->cr_luma_mult, .cr_offset = film_grain->cr_offset, }, }; for (int i = 0; i < 64; i++) { ap->av1_frame_header.tiling.width_in_sbs_minus_1[i] = frame_header->width_in_sbs_minus_1[i]; ap->av1_frame_header.tiling.height_in_sbs_minus_1[i] = frame_header->height_in_sbs_minus_1[i]; ap->av1_frame_header.tiling.tile_start_col_sb[i] = frame_header->tile_start_col_sb[i]; ap->av1_frame_header.tiling.tile_start_row_sb[i] = frame_header->tile_start_row_sb[i]; } for (int i = 0; i < 8; i++) { ap->av1_frame_header.segmentation.feature_enabled_bits[i] = 0; for (int j = 0; j < 8; j++) { ap->av1_frame_header.segmentation.feature_enabled_bits[i] |= (frame_header->feature_enabled[i][j] << j); ap->av1_frame_header.segmentation.feature_data[i][j] = frame_header->feature_value[i][j]; } ap->av1_frame_header.loop_filter.ref_deltas[i] = frame_header->loop_filter_ref_deltas[i]; ap->av1_frame_header.cdef.y_pri_strength[i] = frame_header->cdef_y_pri_strength[i]; ap->av1_frame_header.cdef.y_sec_strength[i] = frame_header->cdef_y_sec_strength[i]; ap->av1_frame_header.cdef.uv_pri_strength[i] = frame_header->cdef_uv_pri_strength[i]; ap->av1_frame_header.cdef.uv_sec_strength[i] = frame_header->cdef_uv_sec_strength[i]; ap->av1_frame_header.ref_order_hint[i] = frame_header->ref_order_hint[i]; ap->av1_frame_header.global_motion[i] = (StdVideoAV1MESAGlobalMotion) { .flags = (StdVideoAV1MESAGlobalMotionFlags) { .gm_invalid = s->cur_frame.gm_invalid[i], }, .gm_type = s->cur_frame.gm_type[i], .gm_params = { s->cur_frame.gm_params[i][0], s->cur_frame.gm_params[i][1], s->cur_frame.gm_params[i][2], s->cur_frame.gm_params[i][3], s->cur_frame.gm_params[i][4], s->cur_frame.gm_params[i][5], }, }; } for (int i = 0; i < 7; i++) { ap->av1_frame_header.ref_frame_idx[i] = frame_header->ref_frame_idx[i]; ap->av1_frame_header.delta_frame_id_minus1[i] = frame_header->delta_frame_id_minus1[i]; } ap->av1_pic_info.skip_mode_frame_idx[0] = s->cur_frame.skip_mode_frame_idx[0]; ap->av1_pic_info.skip_mode_frame_idx[1] = s->cur_frame.skip_mode_frame_idx[1]; if (apply_grain) { for (int i = 0; i < 14; i++) { ap->av1_frame_header.film_grain.point_y_value[i] = film_grain->point_y_value[i]; ap->av1_frame_header.film_grain.point_y_scaling[i] = film_grain->point_y_scaling[i]; } for (int i = 0; i < 10; i++) { ap->av1_frame_header.film_grain.point_cb_value[i] = film_grain->point_cb_value[i]; ap->av1_frame_header.film_grain.point_cb_scaling[i] = film_grain->point_cb_scaling[i]; ap->av1_frame_header.film_grain.point_cr_value[i] = film_grain->point_cr_value[i]; ap->av1_frame_header.film_grain.point_cr_scaling[i] = film_grain->point_cr_scaling[i]; } for (int i = 0; i < 24; i++) { ap->av1_frame_header.film_grain.ar_coeffs_y_plus_128[i] = film_grain->ar_coeffs_y_plus_128[i]; ap->av1_frame_header.film_grain.ar_coeffs_cb_plus_128[i] = film_grain->ar_coeffs_cb_plus_128[i]; ap->av1_frame_header.film_grain.ar_coeffs_cr_plus_128[i] = film_grain->ar_coeffs_cr_plus_128[i]; } ap->av1_frame_header.film_grain.ar_coeffs_cb_plus_128[24] = film_grain->ar_coeffs_cb_plus_128[24]; ap->av1_frame_header.film_grain.ar_coeffs_cr_plus_128[24] = film_grain->ar_coeffs_cr_plus_128[24]; } /* Workaround for a spec issue. */ ap->dec = dec; return 0; } static int vk_av1_decode_slice(AVCodecContext *avctx, const uint8_t *data, uint32_t size) { int err; const AV1DecContext *s = avctx->priv_data; AV1VulkanDecodePicture *ap = s->cur_frame.hwaccel_picture_private; FFVulkanDecodePicture *vp = &ap->vp; for (int i = s->tg_start; i <= s->tg_end; i++) { ap->tiles[ap->tile_list.nb_tiles] = (StdVideoAV1MESATile) { .size = s->tile_group_info[i].tile_size, .offset = s->tile_group_info[i].tile_offset, .row = s->tile_group_info[i].tile_row, .column = s->tile_group_info[i].tile_column, .tg_start = s->tg_start, .tg_end = s->tg_end, }; err = ff_vk_decode_add_slice(avctx, vp, data + s->tile_group_info[i].tile_offset, s->tile_group_info[i].tile_size, 0, &ap->tile_list.nb_tiles, &ap->tile_offsets); if (err < 0) return err; ap->tiles[ap->tile_list.nb_tiles - 1].offset = ap->tile_offsets[ap->tile_list.nb_tiles - 1]; } return 0; } static int vk_av1_end_frame(AVCodecContext *avctx) { const AV1DecContext *s = avctx->priv_data; FFVulkanDecodeContext *dec = avctx->internal->hwaccel_priv_data; const AV1Frame *pic = &s->cur_frame; AV1VulkanDecodePicture *ap = pic->hwaccel_picture_private; FFVulkanDecodePicture *vp = &ap->vp; FFVulkanDecodePicture *rvp[AV1_NUM_REF_FRAMES] = { 0 }; AVFrame *rav[AV1_NUM_REF_FRAMES] = { 0 }; if (!ap->tile_list.nb_tiles) return 0; if (!dec->session_params) { int err = vk_av1_create_params(avctx, &dec->session_params); if (err < 0) return err; } for (int i = 0; i < vp->decode_info.referenceSlotCount; i++) { const AV1Frame *rp = ap->ref_src[i]; AV1VulkanDecodePicture *rhp = rp->hwaccel_picture_private; rvp[i] = &rhp->vp; rav[i] = ap->ref_src[i]->f; } av_log(avctx, AV_LOG_VERBOSE, "Decoding frame, %"SIZE_SPECIFIER" bytes, %i tiles\n", vp->slices_size, ap->tile_list.nb_tiles); return ff_vk_decode_frame(avctx, pic->f, vp, rav, rvp); } static void vk_av1_free_frame_priv(void *_hwctx, uint8_t *data) { AVHWDeviceContext *hwctx = _hwctx; AV1VulkanDecodePicture *ap = (AV1VulkanDecodePicture *)data; /* Workaround for a spec issue. */ if (ap->frame_id_set) ap->dec->frame_id_alloc_mask &= ~(1 << ap->frame_id); /* Free frame resources, this also destroys the session parameters. */ ff_vk_decode_free_frame(hwctx, &ap->vp); /* Free frame context */ av_free(ap); } const FFHWAccel ff_av1_vulkan_hwaccel = { .p.name = "av1_vulkan", .p.type = AVMEDIA_TYPE_VIDEO, .p.id = AV_CODEC_ID_AV1, .p.pix_fmt = AV_PIX_FMT_VULKAN, .start_frame = &vk_av1_start_frame, .decode_slice = &vk_av1_decode_slice, .end_frame = &vk_av1_end_frame, .free_frame_priv = &vk_av1_free_frame_priv, .frame_priv_data_size = sizeof(AV1VulkanDecodePicture), .init = &ff_vk_decode_init, .update_thread_context = &ff_vk_update_thread_context, .decode_params = &ff_vk_params_invalidate, .flush = &ff_vk_decode_flush, .uninit = &ff_vk_decode_uninit, .frame_params = &ff_vk_frame_params, .priv_data_size = sizeof(FFVulkanDecodeContext), /* NOTE: Threading is intentionally disabled here. Due to the design of Vulkan, * where frames are opaque to users, and mostly opaque for driver developers, * there's an issue with current hardware accelerator implementations of AV1, * where they require an internal index. With regular hwaccel APIs, this index * is given to users as an opaque handle directly. With Vulkan, due to increased * flexibility, this index cannot be present anywhere. * The current implementation tracks the index for the driver and submits it * as necessary information. Due to needing to modify the decoding context, * which is not thread-safe, on frame free, threading is disabled. * In the future, once this is fixed in the spec, the workarounds may be removed * and threading enabled. */ .caps_internal = HWACCEL_CAP_ASYNC_SAFE, };