mirror of https://git.ffmpeg.org/ffmpeg.git
350 lines
16 KiB
C
350 lines
16 KiB
C
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/*
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* AV1 HW decode acceleration through NVDEC
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*
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* Copyright (c) 2020 Timo Rothenpieler
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "avcodec.h"
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#include "nvdec.h"
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#include "decode.h"
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#include "internal.h"
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#include "av1dec.h"
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static int get_bit_depth_from_seq(const AV1RawSequenceHeader *seq)
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{
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if (seq->seq_profile == 2 && seq->color_config.high_bitdepth)
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return seq->color_config.twelve_bit ? 12 : 10;
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else if (seq->seq_profile <= 2 && seq->color_config.high_bitdepth)
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return 10;
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else
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return 8;
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}
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static int nvdec_av1_start_frame(AVCodecContext *avctx, const uint8_t *buffer, uint32_t size)
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{
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const AV1DecContext *s = avctx->priv_data;
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const AV1RawSequenceHeader *seq = s->raw_seq;
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const AV1RawFrameHeader *frame_header = s->raw_frame_header;
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NVDECContext *ctx = avctx->internal->hwaccel_priv_data;
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CUVIDPICPARAMS *pp = &ctx->pic_params;
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CUVIDAV1PICPARAMS *ppc = &pp->CodecSpecific.av1;
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FrameDecodeData *fdd;
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NVDECFrame *cf;
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AVFrame *cur_frame = s->cur_frame.tf.f;
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unsigned char remap_lr_type[4] = { AV1_RESTORE_NONE, AV1_RESTORE_SWITCHABLE, AV1_RESTORE_WIENER, AV1_RESTORE_SGRPROJ };
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int ret, i, j;
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ret = ff_nvdec_start_frame_sep_ref(avctx, cur_frame, frame_header->apply_grain);
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if (ret < 0)
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return ret;
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fdd = (FrameDecodeData*)cur_frame->private_ref->data;
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cf = (NVDECFrame*)fdd->hwaccel_priv;
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*pp = (CUVIDPICPARAMS) {
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.PicWidthInMbs = (cur_frame->width + 15) / 16,
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.FrameHeightInMbs = (cur_frame->height + 15) / 16,
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.CurrPicIdx = cf->idx,
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.ref_pic_flag = !!frame_header->refresh_frame_flags,
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.intra_pic_flag = frame_header->frame_type == AV1_FRAME_INTRA_ONLY ||
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frame_header->frame_type == AV1_FRAME_KEY,
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.CodecSpecific.av1 = {
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.width = cur_frame->width,
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.height = cur_frame->height,
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.frame_offset = frame_header->order_hint,
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.decodePicIdx = cf->ref_idx,
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/* Sequence Header */
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.profile = seq->seq_profile,
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.use_128x128_superblock = seq->use_128x128_superblock,
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.subsampling_x = seq->color_config.subsampling_x,
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.subsampling_y = seq->color_config.subsampling_y,
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.mono_chrome = seq->color_config.mono_chrome,
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.bit_depth_minus8 = get_bit_depth_from_seq(seq) - 8,
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.enable_filter_intra = seq->enable_filter_intra,
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.enable_intra_edge_filter = seq->enable_intra_edge_filter,
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.enable_interintra_compound = seq->enable_interintra_compound,
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.enable_masked_compound = seq->enable_masked_compound,
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.enable_dual_filter = seq->enable_dual_filter,
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.enable_order_hint = seq->enable_order_hint,
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.order_hint_bits_minus1 = seq->order_hint_bits_minus_1,
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.enable_jnt_comp = seq->enable_jnt_comp,
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.enable_superres = seq->enable_superres,
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.enable_cdef = seq->enable_cdef,
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.enable_restoration = seq->enable_restoration,
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.enable_fgs = seq->film_grain_params_present,
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/* Frame Header */
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.frame_type = frame_header->frame_type,
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.show_frame = frame_header->show_frame,
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.disable_cdf_update = frame_header->disable_cdf_update,
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.allow_screen_content_tools = frame_header->allow_screen_content_tools,
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.force_integer_mv = frame_header->force_integer_mv ||
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frame_header->frame_type == AV1_FRAME_INTRA_ONLY ||
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frame_header->frame_type == AV1_FRAME_KEY,
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.coded_denom = frame_header->coded_denom,
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.allow_intrabc = frame_header->allow_intrabc,
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.allow_high_precision_mv = frame_header->allow_high_precision_mv,
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.interp_filter = frame_header->interpolation_filter,
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.switchable_motion_mode = frame_header->is_motion_mode_switchable,
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.use_ref_frame_mvs = frame_header->use_ref_frame_mvs,
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.disable_frame_end_update_cdf = frame_header->disable_frame_end_update_cdf,
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.delta_q_present = frame_header->delta_q_present,
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.delta_q_res = frame_header->delta_q_res,
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.using_qmatrix = frame_header->using_qmatrix,
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.coded_lossless = s->cur_frame.coded_lossless,
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.use_superres = frame_header->use_superres,
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.tx_mode = frame_header->tx_mode,
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.reference_mode = frame_header->reference_select,
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.allow_warped_motion = frame_header->allow_warped_motion,
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.reduced_tx_set = frame_header->reduced_tx_set,
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.skip_mode = frame_header->skip_mode_present,
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/* Tiling Info */
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.num_tile_cols = frame_header->tile_cols,
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.num_tile_rows = frame_header->tile_rows,
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.context_update_tile_id = frame_header->context_update_tile_id,
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/* CDEF */
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.cdef_damping_minus_3 = frame_header->cdef_damping_minus_3,
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.cdef_bits = frame_header->cdef_bits,
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/* SkipModeFrames */
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.SkipModeFrame0 = frame_header->skip_mode_present ?
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s->cur_frame.skip_mode_frame_idx[0] : 0,
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.SkipModeFrame1 = frame_header->skip_mode_present ?
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s->cur_frame.skip_mode_frame_idx[1] : 0,
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/* QP Information */
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.base_qindex = frame_header->base_q_idx,
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.qp_y_dc_delta_q = frame_header->delta_q_y_dc,
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.qp_u_dc_delta_q = frame_header->delta_q_u_dc,
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.qp_v_dc_delta_q = frame_header->delta_q_v_dc,
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.qp_u_ac_delta_q = frame_header->delta_q_u_ac,
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.qp_v_ac_delta_q = frame_header->delta_q_v_ac,
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.qm_y = frame_header->qm_y,
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.qm_u = frame_header->qm_u,
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.qm_v = frame_header->qm_v,
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/* Segmentation */
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.segmentation_enabled = frame_header->segmentation_enabled,
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.segmentation_update_map = frame_header->segmentation_update_map,
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.segmentation_update_data = frame_header->segmentation_update_data,
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.segmentation_temporal_update = frame_header->segmentation_temporal_update,
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/* Loopfilter */
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.loop_filter_level[0] = frame_header->loop_filter_level[0],
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.loop_filter_level[1] = frame_header->loop_filter_level[1],
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.loop_filter_level_u = frame_header->loop_filter_level[2],
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.loop_filter_level_v = frame_header->loop_filter_level[3],
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.loop_filter_sharpness = frame_header->loop_filter_sharpness,
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.loop_filter_delta_enabled = frame_header->loop_filter_delta_enabled,
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.loop_filter_delta_update = frame_header->loop_filter_delta_update,
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.loop_filter_mode_deltas[0] = frame_header->loop_filter_mode_deltas[0],
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.loop_filter_mode_deltas[1] = frame_header->loop_filter_mode_deltas[1],
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.delta_lf_present = frame_header->delta_lf_present,
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.delta_lf_res = frame_header->delta_lf_res,
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.delta_lf_multi = frame_header->delta_lf_multi,
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/* Restoration */
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.lr_type[0] = remap_lr_type[frame_header->lr_type[0]],
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.lr_type[1] = remap_lr_type[frame_header->lr_type[1]],
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.lr_type[2] = remap_lr_type[frame_header->lr_type[2]],
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.lr_unit_size[0] = 1 + frame_header->lr_unit_shift,
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.lr_unit_size[1] = 1 + frame_header->lr_unit_shift - frame_header->lr_uv_shift,
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.lr_unit_size[2] = 1 + frame_header->lr_unit_shift - frame_header->lr_uv_shift,
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/* Reference Frames */
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.temporal_layer_id = s->cur_frame.temporal_id,
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.spatial_layer_id = s->cur_frame.spatial_id,
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/* Film Grain Params */
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.apply_grain = frame_header->apply_grain,
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.overlap_flag = frame_header->overlap_flag,
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.scaling_shift_minus8 = frame_header->grain_scaling_minus_8,
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.chroma_scaling_from_luma = frame_header->chroma_scaling_from_luma,
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.ar_coeff_lag = frame_header->ar_coeff_lag,
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.ar_coeff_shift_minus6 = frame_header->ar_coeff_shift_minus_6,
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.grain_scale_shift = frame_header->grain_scale_shift,
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.clip_to_restricted_range = frame_header->clip_to_restricted_range,
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.num_y_points = frame_header->num_y_points,
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.num_cb_points = frame_header->num_cb_points,
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.num_cr_points = frame_header->num_cr_points,
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.random_seed = frame_header->grain_seed,
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.cb_mult = frame_header->cb_mult,
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.cb_luma_mult = frame_header->cb_luma_mult,
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.cb_offset = frame_header->cb_offset,
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.cr_mult = frame_header->cr_mult,
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.cr_luma_mult = frame_header->cr_luma_mult,
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.cr_offset = frame_header->cr_offset
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}
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};
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/* Tiling Info */
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for (i = 0; i < frame_header->tile_cols; ++i) {
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ppc->tile_widths[i] = frame_header->width_in_sbs_minus_1[i] + 1;
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}
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for (i = 0; i < frame_header->tile_rows; ++i) {
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ppc->tile_heights[i] = frame_header->height_in_sbs_minus_1[i] + 1;
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}
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/* CDEF */
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for (i = 0; i < (1 << frame_header->cdef_bits); ++i) {
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ppc->cdef_y_strength[i] = (frame_header->cdef_y_pri_strength[i] & 0x0F) | (frame_header->cdef_y_sec_strength[i] << 4);
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ppc->cdef_uv_strength[i] = (frame_header->cdef_uv_pri_strength[i] & 0x0F) | (frame_header->cdef_uv_sec_strength[i] << 4);
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}
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/* Segmentation */
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for (i = 0; i < AV1_MAX_SEGMENTS; ++i) {
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ppc->segmentation_feature_mask[i] = 0;
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for (j = 0; j < AV1_SEG_LVL_MAX; ++j) {
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ppc->segmentation_feature_mask[i] |= frame_header->feature_enabled[i][j] << j;
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ppc->segmentation_feature_data[i][j] = frame_header->feature_value[i][j];
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}
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}
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for (i = 0; i < AV1_NUM_REF_FRAMES; ++i) {
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/* Loopfilter */
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ppc->loop_filter_ref_deltas[i] = frame_header->loop_filter_ref_deltas[i];
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/* Reference Frames */
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ppc->ref_frame_map[i] = ff_nvdec_get_ref_idx(s->ref[i].tf.f);
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}
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if (frame_header->primary_ref_frame == AV1_PRIMARY_REF_NONE) {
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ppc->primary_ref_frame = -1;
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} else {
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int8_t pri_ref_idx = frame_header->ref_frame_idx[frame_header->primary_ref_frame];
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ppc->primary_ref_frame = ppc->ref_frame_map[pri_ref_idx];
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}
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for (i = 0; i < AV1_REFS_PER_FRAME; ++i) {
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/* Ref Frame List */
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int8_t ref_idx = frame_header->ref_frame_idx[i];
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AVFrame *ref_frame = s->ref[ref_idx].tf.f;
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ppc->ref_frame[i].index = ppc->ref_frame_map[ref_idx];
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ppc->ref_frame[i].width = ref_frame->width;
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ppc->ref_frame[i].height = ref_frame->height;
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/* Global Motion */
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ppc->global_motion[i].invalid = !frame_header->is_global[AV1_REF_FRAME_LAST + i];
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ppc->global_motion[i].wmtype = s->cur_frame.gm_type[AV1_REF_FRAME_LAST + i];
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for (j = 0; j < 6; ++j) {
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ppc->global_motion[i].wmmat[j] = s->cur_frame.gm_params[AV1_REF_FRAME_LAST + i][j];
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}
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}
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/* Film Grain Params */
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if (frame_header->apply_grain) {
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for (i = 0; i < 14; ++i) {
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ppc->scaling_points_y[i][0] = frame_header->point_y_value[i];
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ppc->scaling_points_y[i][1] = frame_header->point_y_scaling[i];
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}
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for (i = 0; i < 10; ++i) {
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ppc->scaling_points_cb[i][0] = frame_header->point_cb_value[i];
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ppc->scaling_points_cb[i][1] = frame_header->point_cb_scaling[i];
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ppc->scaling_points_cr[i][0] = frame_header->point_cr_value[i];
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ppc->scaling_points_cr[i][1] = frame_header->point_cr_scaling[i];
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}
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for (i = 0; i < 24; ++i) {
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ppc->ar_coeffs_y[i] = (short)frame_header->ar_coeffs_y_plus_128[i] - 128;
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}
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for (i = 0; i < 25; ++i) {
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ppc->ar_coeffs_cb[i] = (short)frame_header->ar_coeffs_cb_plus_128[i] - 128;
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ppc->ar_coeffs_cr[i] = (short)frame_header->ar_coeffs_cr_plus_128[i] - 128;
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}
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}
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return 0;
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}
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static int nvdec_av1_decode_slice(AVCodecContext *avctx, const uint8_t *buffer, uint32_t size)
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{
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const AV1DecContext *s = avctx->priv_data;
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const AV1RawFrameHeader *frame_header = s->raw_frame_header;
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NVDECContext *ctx = avctx->internal->hwaccel_priv_data;
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void *tmp;
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ctx->nb_slices = frame_header->tile_cols * frame_header->tile_rows;
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tmp = av_fast_realloc(ctx->slice_offsets, &ctx->slice_offsets_allocated,
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ctx->nb_slices * 2 * sizeof(*ctx->slice_offsets));
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if (!tmp) {
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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),
|
||
|
|
};
|