| /* |
| * AV1 HW decode acceleration through NVDEC |
| * |
| * Copyright (c) 2020 Timo Rothenpieler |
| * |
| * 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 "avcodec.h" |
| #include "nvdec.h" |
| #include "decode.h" |
| #include "internal.h" |
| #include "av1dec.h" |
| |
| |
| static int get_bit_depth_from_seq(const AV1RawSequenceHeader *seq) |
| { |
| if (seq->seq_profile == 2 && seq->color_config.high_bitdepth) |
| return seq->color_config.twelve_bit ? 12 : 10; |
| else if (seq->seq_profile <= 2 && seq->color_config.high_bitdepth) |
| return 10; |
| else |
| return 8; |
| } |
| |
| static int nvdec_av1_start_frame(AVCodecContext *avctx, const uint8_t *buffer, uint32_t size) |
| { |
| const AV1DecContext *s = avctx->priv_data; |
| const AV1RawSequenceHeader *seq = s->raw_seq; |
| const AV1RawFrameHeader *frame_header = s->raw_frame_header; |
| const AV1RawFilmGrainParams *film_grain = &s->cur_frame.film_grain; |
| |
| NVDECContext *ctx = avctx->internal->hwaccel_priv_data; |
| CUVIDPICPARAMS *pp = &ctx->pic_params; |
| CUVIDAV1PICPARAMS *ppc = &pp->CodecSpecific.av1; |
| FrameDecodeData *fdd; |
| NVDECFrame *cf; |
| AVFrame *cur_frame = s->cur_frame.tf.f; |
| |
| unsigned char remap_lr_type[4] = { AV1_RESTORE_NONE, AV1_RESTORE_SWITCHABLE, AV1_RESTORE_WIENER, AV1_RESTORE_SGRPROJ }; |
| |
| int ret, i, j; |
| |
| ret = ff_nvdec_start_frame_sep_ref(avctx, cur_frame, film_grain->apply_grain); |
| if (ret < 0) |
| return ret; |
| |
| fdd = (FrameDecodeData*)cur_frame->private_ref->data; |
| cf = (NVDECFrame*)fdd->hwaccel_priv; |
| |
| *pp = (CUVIDPICPARAMS) { |
| .PicWidthInMbs = (cur_frame->width + 15) / 16, |
| .FrameHeightInMbs = (cur_frame->height + 15) / 16, |
| .CurrPicIdx = cf->idx, |
| .ref_pic_flag = !!frame_header->refresh_frame_flags, |
| .intra_pic_flag = frame_header->frame_type == AV1_FRAME_INTRA_ONLY || |
| frame_header->frame_type == AV1_FRAME_KEY, |
| |
| .CodecSpecific.av1 = { |
| .width = cur_frame->width, |
| .height = cur_frame->height, |
| |
| .frame_offset = frame_header->order_hint, |
| .decodePicIdx = cf->ref_idx, |
| |
| /* Sequence Header */ |
| .profile = seq->seq_profile, |
| .use_128x128_superblock = seq->use_128x128_superblock, |
| .subsampling_x = seq->color_config.subsampling_x, |
| .subsampling_y = seq->color_config.subsampling_y, |
| .mono_chrome = seq->color_config.mono_chrome, |
| .bit_depth_minus8 = get_bit_depth_from_seq(seq) - 8, |
| .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_dual_filter = seq->enable_dual_filter, |
| .enable_order_hint = seq->enable_order_hint, |
| .order_hint_bits_minus1 = seq->order_hint_bits_minus_1, |
| .enable_jnt_comp = seq->enable_jnt_comp, |
| .enable_superres = seq->enable_superres, |
| .enable_cdef = seq->enable_cdef, |
| .enable_restoration = seq->enable_restoration, |
| .enable_fgs = seq->film_grain_params_present, |
| |
| /* Frame Header */ |
| .frame_type = frame_header->frame_type, |
| .show_frame = frame_header->show_frame, |
| .disable_cdf_update = frame_header->disable_cdf_update, |
| .allow_screen_content_tools = frame_header->allow_screen_content_tools, |
| .force_integer_mv = frame_header->force_integer_mv || |
| frame_header->frame_type == AV1_FRAME_INTRA_ONLY || |
| frame_header->frame_type == AV1_FRAME_KEY, |
| .coded_denom = frame_header->coded_denom, |
| .allow_intrabc = frame_header->allow_intrabc, |
| .allow_high_precision_mv = frame_header->allow_high_precision_mv, |
| .interp_filter = frame_header->interpolation_filter, |
| .switchable_motion_mode = 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, |
| .delta_q_present = frame_header->delta_q_present, |
| .delta_q_res = frame_header->delta_q_res, |
| .using_qmatrix = frame_header->using_qmatrix, |
| .coded_lossless = s->cur_frame.coded_lossless, |
| .use_superres = frame_header->use_superres, |
| .tx_mode = frame_header->tx_mode, |
| .reference_mode = frame_header->reference_select, |
| .allow_warped_motion = frame_header->allow_warped_motion, |
| .reduced_tx_set = frame_header->reduced_tx_set, |
| .skip_mode = frame_header->skip_mode_present, |
| |
| /* Tiling Info */ |
| .num_tile_cols = frame_header->tile_cols, |
| .num_tile_rows = frame_header->tile_rows, |
| .context_update_tile_id = frame_header->context_update_tile_id, |
| |
| /* CDEF */ |
| .cdef_damping_minus_3 = frame_header->cdef_damping_minus_3, |
| .cdef_bits = frame_header->cdef_bits, |
| |
| /* SkipModeFrames */ |
| .SkipModeFrame0 = frame_header->skip_mode_present ? |
| s->cur_frame.skip_mode_frame_idx[0] : 0, |
| .SkipModeFrame1 = frame_header->skip_mode_present ? |
| s->cur_frame.skip_mode_frame_idx[1] : 0, |
| |
| /* QP Information */ |
| .base_qindex = frame_header->base_q_idx, |
| .qp_y_dc_delta_q = frame_header->delta_q_y_dc, |
| .qp_u_dc_delta_q = frame_header->delta_q_u_dc, |
| .qp_v_dc_delta_q = frame_header->delta_q_v_dc, |
| .qp_u_ac_delta_q = frame_header->delta_q_u_ac, |
| .qp_v_ac_delta_q = frame_header->delta_q_v_ac, |
| .qm_y = frame_header->qm_y, |
| .qm_u = frame_header->qm_u, |
| .qm_v = frame_header->qm_v, |
| |
| /* Segmentation */ |
| .segmentation_enabled = frame_header->segmentation_enabled, |
| .segmentation_update_map = frame_header->segmentation_update_map, |
| .segmentation_update_data = frame_header->segmentation_update_data, |
| .segmentation_temporal_update = frame_header->segmentation_temporal_update, |
| |
| /* Loopfilter */ |
| .loop_filter_level[0] = frame_header->loop_filter_level[0], |
| .loop_filter_level[1] = frame_header->loop_filter_level[1], |
| .loop_filter_level_u = frame_header->loop_filter_level[2], |
| .loop_filter_level_v = frame_header->loop_filter_level[3], |
| .loop_filter_sharpness = frame_header->loop_filter_sharpness, |
| .loop_filter_delta_enabled = frame_header->loop_filter_delta_enabled, |
| .loop_filter_delta_update = frame_header->loop_filter_delta_update, |
| .loop_filter_mode_deltas[0] = frame_header->loop_filter_mode_deltas[0], |
| .loop_filter_mode_deltas[1] = frame_header->loop_filter_mode_deltas[1], |
| .delta_lf_present = frame_header->delta_lf_present, |
| .delta_lf_res = frame_header->delta_lf_res, |
| .delta_lf_multi = frame_header->delta_lf_multi, |
| |
| /* Restoration */ |
| .lr_type[0] = remap_lr_type[frame_header->lr_type[0]], |
| .lr_type[1] = remap_lr_type[frame_header->lr_type[1]], |
| .lr_type[2] = remap_lr_type[frame_header->lr_type[2]], |
| .lr_unit_size[0] = 1 + frame_header->lr_unit_shift, |
| .lr_unit_size[1] = 1 + frame_header->lr_unit_shift - frame_header->lr_uv_shift, |
| .lr_unit_size[2] = 1 + frame_header->lr_unit_shift - frame_header->lr_uv_shift, |
| |
| /* Reference Frames */ |
| .temporal_layer_id = s->cur_frame.temporal_id, |
| .spatial_layer_id = s->cur_frame.spatial_id, |
| |
| /* Film Grain Params */ |
| .apply_grain = film_grain->apply_grain, |
| .overlap_flag = film_grain->overlap_flag, |
| .scaling_shift_minus8 = film_grain->grain_scaling_minus_8, |
| .chroma_scaling_from_luma = film_grain->chroma_scaling_from_luma, |
| .ar_coeff_lag = film_grain->ar_coeff_lag, |
| .ar_coeff_shift_minus6 = film_grain->ar_coeff_shift_minus_6, |
| .grain_scale_shift = film_grain->grain_scale_shift, |
| .clip_to_restricted_range = film_grain->clip_to_restricted_range, |
| .num_y_points = film_grain->num_y_points, |
| .num_cb_points = film_grain->num_cb_points, |
| .num_cr_points = film_grain->num_cr_points, |
| .random_seed = film_grain->grain_seed, |
| .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 |
| } |
| }; |
| |
| /* Tiling Info */ |
| for (i = 0; i < frame_header->tile_cols; ++i) { |
| ppc->tile_widths[i] = frame_header->width_in_sbs_minus_1[i] + 1; |
| } |
| for (i = 0; i < frame_header->tile_rows; ++i) { |
| ppc->tile_heights[i] = frame_header->height_in_sbs_minus_1[i] + 1; |
| } |
| |
| /* CDEF */ |
| for (i = 0; i < (1 << frame_header->cdef_bits); ++i) { |
| ppc->cdef_y_strength[i] = (frame_header->cdef_y_pri_strength[i] & 0x0F) | (frame_header->cdef_y_sec_strength[i] << 4); |
| ppc->cdef_uv_strength[i] = (frame_header->cdef_uv_pri_strength[i] & 0x0F) | (frame_header->cdef_uv_sec_strength[i] << 4); |
| } |
| |
| /* Segmentation */ |
| for (i = 0; i < AV1_MAX_SEGMENTS; ++i) { |
| ppc->segmentation_feature_mask[i] = 0; |
| for (j = 0; j < AV1_SEG_LVL_MAX; ++j) { |
| ppc->segmentation_feature_mask[i] |= frame_header->feature_enabled[i][j] << j; |
| ppc->segmentation_feature_data[i][j] = frame_header->feature_value[i][j]; |
| } |
| } |
| |
| for (i = 0; i < AV1_NUM_REF_FRAMES; ++i) { |
| /* Loopfilter */ |
| ppc->loop_filter_ref_deltas[i] = frame_header->loop_filter_ref_deltas[i]; |
| |
| /* Reference Frames */ |
| ppc->ref_frame_map[i] = ff_nvdec_get_ref_idx(s->ref[i].tf.f); |
| } |
| |
| if (frame_header->primary_ref_frame == AV1_PRIMARY_REF_NONE) { |
| ppc->primary_ref_frame = -1; |
| } else { |
| int8_t pri_ref_idx = frame_header->ref_frame_idx[frame_header->primary_ref_frame]; |
| ppc->primary_ref_frame = ppc->ref_frame_map[pri_ref_idx]; |
| } |
| |
| for (i = 0; i < AV1_REFS_PER_FRAME; ++i) { |
| /* Ref Frame List */ |
| int8_t ref_idx = frame_header->ref_frame_idx[i]; |
| AVFrame *ref_frame = s->ref[ref_idx].tf.f; |
| |
| ppc->ref_frame[i].index = ppc->ref_frame_map[ref_idx]; |
| ppc->ref_frame[i].width = ref_frame->width; |
| ppc->ref_frame[i].height = ref_frame->height; |
| |
| /* Global Motion */ |
| ppc->global_motion[i].invalid = !frame_header->is_global[AV1_REF_FRAME_LAST + i]; |
| ppc->global_motion[i].wmtype = s->cur_frame.gm_type[AV1_REF_FRAME_LAST + i]; |
| for (j = 0; j < 6; ++j) { |
| ppc->global_motion[i].wmmat[j] = s->cur_frame.gm_params[AV1_REF_FRAME_LAST + i][j]; |
| } |
| } |
| |
| /* Film Grain Params */ |
| if (film_grain->apply_grain) { |
| for (i = 0; i < 14; ++i) { |
| ppc->scaling_points_y[i][0] = film_grain->point_y_value[i]; |
| ppc->scaling_points_y[i][1] = film_grain->point_y_scaling[i]; |
| } |
| for (i = 0; i < 10; ++i) { |
| ppc->scaling_points_cb[i][0] = film_grain->point_cb_value[i]; |
| ppc->scaling_points_cb[i][1] = film_grain->point_cb_scaling[i]; |
| ppc->scaling_points_cr[i][0] = film_grain->point_cr_value[i]; |
| ppc->scaling_points_cr[i][1] = film_grain->point_cr_scaling[i]; |
| } |
| for (i = 0; i < 24; ++i) { |
| ppc->ar_coeffs_y[i] = (short)film_grain->ar_coeffs_y_plus_128[i] - 128; |
| } |
| for (i = 0; i < 25; ++i) { |
| ppc->ar_coeffs_cb[i] = (short)film_grain->ar_coeffs_cb_plus_128[i] - 128; |
| ppc->ar_coeffs_cr[i] = (short)film_grain->ar_coeffs_cr_plus_128[i] - 128; |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int nvdec_av1_decode_slice(AVCodecContext *avctx, const uint8_t *buffer, uint32_t size) |
| { |
| const AV1DecContext *s = avctx->priv_data; |
| const AV1RawFrameHeader *frame_header = s->raw_frame_header; |
| NVDECContext *ctx = avctx->internal->hwaccel_priv_data; |
| void *tmp; |
| |
| ctx->nb_slices = frame_header->tile_cols * frame_header->tile_rows; |
| |
| tmp = av_fast_realloc(ctx->slice_offsets, &ctx->slice_offsets_allocated, |
| ctx->nb_slices * 2 * sizeof(*ctx->slice_offsets)); |
| if (!tmp) { |
| return AVERROR(ENOMEM); |
| } |
| ctx->slice_offsets = tmp; |
| |
| /* Shortcut if all tiles are in the same buffer */ |
| if (ctx->nb_slices == s->tg_end - s->tg_start + 1) { |
| ctx->bitstream = (uint8_t*)buffer; |
| ctx->bitstream_len = size; |
| |
| for (int i = 0; i < ctx->nb_slices; ++i) { |
| ctx->slice_offsets[i*2 ] = s->tile_group_info[i].tile_offset; |
| ctx->slice_offsets[i*2 + 1] = ctx->slice_offsets[i*2] + s->tile_group_info[i].tile_size; |
| } |
| |
| return 0; |
| } |
| |
| tmp = av_fast_realloc(ctx->bitstream_internal, &ctx->bitstream_allocated, |
| ctx->bitstream_len + size); |
| if (!tmp) { |
| return AVERROR(ENOMEM); |
| } |
| ctx->bitstream = ctx->bitstream_internal = tmp; |
| |
| memcpy(ctx->bitstream + ctx->bitstream_len, buffer, size); |
| |
| for (uint32_t tile_num = s->tg_start; tile_num <= s->tg_end; ++tile_num) { |
| ctx->slice_offsets[tile_num*2 ] = ctx->bitstream_len + s->tile_group_info[tile_num].tile_offset; |
| ctx->slice_offsets[tile_num*2 + 1] = ctx->slice_offsets[tile_num*2] + s->tile_group_info[tile_num].tile_size; |
| } |
| ctx->bitstream_len += size; |
| |
| return 0; |
| } |
| |
| static int nvdec_av1_frame_params(AVCodecContext *avctx, AVBufferRef *hw_frames_ctx) |
| { |
| /* Maximum of 8 reference frames, but potentially stored twice due to film grain */ |
| return ff_nvdec_frame_params(avctx, hw_frames_ctx, 8 * 2, 0); |
| } |
| |
| const AVHWAccel ff_av1_nvdec_hwaccel = { |
| .name = "av1_nvdec", |
| .type = AVMEDIA_TYPE_VIDEO, |
| .id = AV_CODEC_ID_AV1, |
| .pix_fmt = AV_PIX_FMT_CUDA, |
| .start_frame = nvdec_av1_start_frame, |
| .end_frame = ff_nvdec_simple_end_frame, |
| .decode_slice = nvdec_av1_decode_slice, |
| .frame_params = nvdec_av1_frame_params, |
| .init = ff_nvdec_decode_init, |
| .uninit = ff_nvdec_decode_uninit, |
| .priv_data_size = sizeof(NVDECContext), |
| }; |
