Partially based on a patch by Timo Rothenpieler <timo@rothenpieler.org>. Additional scaling list handling fix by Jun Zhao <mypopydev@gmail.com>.pull/202/merge
Anton Khirnov
9 years ago
parent
1783d7ec03
commit
ea8b730d8e
8 changed files with 452 additions and 3 deletions
@ -0,0 +1,439 @@ |
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/*
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* HEVC HW decode acceleration through VA API |
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* |
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* Copyright (C) 2015 Timo Rothenpieler <timo@rothenpieler.org> |
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* |
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* This file is part of Libav. |
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* |
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* Libav 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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* Libav 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 Libav; 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 <va/va.h> |
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#include <va/va_dec_hevc.h> |
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#include "avcodec.h" |
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#include "hevcdec.h" |
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#include "hwaccel.h" |
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#include "vaapi_decode.h" |
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typedef struct VAAPIDecodePictureHEVC { |
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VAPictureParameterBufferHEVC pic_param; |
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VASliceParameterBufferHEVC last_slice_param; |
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const uint8_t *last_buffer; |
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size_t last_size; |
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VAAPIDecodePicture pic; |
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} VAAPIDecodePictureHEVC; |
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static void init_vaapi_pic(VAPictureHEVC *va_pic) |
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{ |
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va_pic->picture_id = VA_INVALID_ID; |
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va_pic->flags = VA_PICTURE_HEVC_INVALID; |
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va_pic->pic_order_cnt = 0; |
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} |
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static void fill_vaapi_pic(VAPictureHEVC *va_pic, const HEVCFrame *pic, int rps_type) |
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{ |
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va_pic->picture_id = ff_vaapi_get_surface_id(pic->frame); |
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va_pic->pic_order_cnt = pic->poc; |
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va_pic->flags = rps_type; |
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if (pic->flags & HEVC_FRAME_FLAG_LONG_REF) |
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va_pic->flags |= VA_PICTURE_HEVC_LONG_TERM_REFERENCE; |
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if (pic->frame->interlaced_frame) { |
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va_pic->flags |= VA_PICTURE_HEVC_FIELD_PIC; |
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if (!pic->frame->top_field_first) |
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va_pic->flags |= VA_PICTURE_HEVC_BOTTOM_FIELD; |
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} |
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} |
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static int find_frame_rps_type(const HEVCContext *h, const HEVCFrame *pic) |
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{ |
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VASurfaceID pic_surf = ff_vaapi_get_surface_id(pic->frame); |
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int i; |
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for (i = 0; i < h->rps[ST_CURR_BEF].nb_refs; i++) { |
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if (pic_surf == ff_vaapi_get_surface_id(h->rps[ST_CURR_BEF].ref[i]->frame)) |
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return VA_PICTURE_HEVC_RPS_ST_CURR_BEFORE; |
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} |
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for (i = 0; i < h->rps[ST_CURR_AFT].nb_refs; i++) { |
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if (pic_surf == ff_vaapi_get_surface_id(h->rps[ST_CURR_AFT].ref[i]->frame)) |
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return VA_PICTURE_HEVC_RPS_ST_CURR_AFTER; |
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} |
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for (i = 0; i < h->rps[LT_CURR].nb_refs; i++) { |
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if (pic_surf == ff_vaapi_get_surface_id(h->rps[LT_CURR].ref[i]->frame)) |
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return VA_PICTURE_HEVC_RPS_LT_CURR; |
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} |
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return 0; |
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} |
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static void fill_vaapi_reference_frames(const HEVCContext *h, VAPictureParameterBufferHEVC *pp) |
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{ |
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const HEVCFrame *current_picture = h->ref; |
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int i, j, rps_type; |
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for (i = 0, j = 0; i < FF_ARRAY_ELEMS(pp->ReferenceFrames); i++) { |
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const HEVCFrame *frame = NULL; |
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while (!frame && j < FF_ARRAY_ELEMS(h->DPB)) { |
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if (&h->DPB[j] != current_picture && (h->DPB[j].flags & (HEVC_FRAME_FLAG_LONG_REF | HEVC_FRAME_FLAG_SHORT_REF))) |
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frame = &h->DPB[j]; |
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j++; |
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} |
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init_vaapi_pic(&pp->ReferenceFrames[i]); |
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if (frame) { |
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rps_type = find_frame_rps_type(h, frame); |
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fill_vaapi_pic(&pp->ReferenceFrames[i], frame, rps_type); |
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} |
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} |
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} |
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static int vaapi_hevc_start_frame(AVCodecContext *avctx, |
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av_unused const uint8_t *buffer, |
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av_unused uint32_t size) |
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{ |
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const HEVCContext *h = avctx->priv_data; |
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VAAPIDecodePictureHEVC *pic = h->ref->hwaccel_picture_private; |
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const HEVCSPS *sps = h->ps.sps; |
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const HEVCPPS *pps = h->ps.pps; |
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const ScalingList *scaling_list = NULL; |
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int err, i; |
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pic->pic.output_surface = ff_vaapi_get_surface_id(h->ref->frame); |
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pic->pic_param = (VAPictureParameterBufferHEVC) { |
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.pic_fields.value = 0, |
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.slice_parsing_fields.value = 0, |
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.pic_width_in_luma_samples = sps->width, |
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.pic_height_in_luma_samples = sps->height, |
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.log2_min_luma_coding_block_size_minus3 = sps->log2_min_cb_size - 3, |
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.sps_max_dec_pic_buffering_minus1 = sps->temporal_layer[sps->max_sub_layers - 1].max_dec_pic_buffering - 1, |
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.log2_diff_max_min_luma_coding_block_size = sps->log2_diff_max_min_coding_block_size, |
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.log2_min_transform_block_size_minus2 = sps->log2_min_tb_size - 2, |
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.log2_diff_max_min_transform_block_size = sps->log2_max_trafo_size - sps->log2_min_tb_size, |
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.max_transform_hierarchy_depth_inter = sps->max_transform_hierarchy_depth_inter, |
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.max_transform_hierarchy_depth_intra = sps->max_transform_hierarchy_depth_intra, |
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.num_short_term_ref_pic_sets = sps->nb_st_rps, |
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.num_long_term_ref_pic_sps = sps->num_long_term_ref_pics_sps, |
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.num_ref_idx_l0_default_active_minus1 = pps->num_ref_idx_l0_default_active - 1, |
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.num_ref_idx_l1_default_active_minus1 = pps->num_ref_idx_l1_default_active - 1, |
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.init_qp_minus26 = pps->pic_init_qp_minus26, |
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.pps_cb_qp_offset = pps->cb_qp_offset, |
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.pps_cr_qp_offset = pps->cr_qp_offset, |
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.pcm_sample_bit_depth_luma_minus1 = sps->pcm.bit_depth - 1, |
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.pcm_sample_bit_depth_chroma_minus1 = sps->pcm.bit_depth_chroma - 1, |
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.log2_min_pcm_luma_coding_block_size_minus3 = sps->pcm.log2_min_pcm_cb_size - 3, |
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.log2_diff_max_min_pcm_luma_coding_block_size = sps->pcm.log2_max_pcm_cb_size - sps->pcm.log2_min_pcm_cb_size, |
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.diff_cu_qp_delta_depth = pps->diff_cu_qp_delta_depth, |
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.pps_beta_offset_div2 = pps->beta_offset / 2, |
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.pps_tc_offset_div2 = pps->tc_offset / 2, |
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.log2_parallel_merge_level_minus2 = pps->log2_parallel_merge_level - 2, |
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.bit_depth_luma_minus8 = sps->bit_depth - 8, |
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.bit_depth_chroma_minus8 = sps->bit_depth - 8, |
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.log2_max_pic_order_cnt_lsb_minus4 = sps->log2_max_poc_lsb - 4, |
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.num_extra_slice_header_bits = pps->num_extra_slice_header_bits, |
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.pic_fields.bits = { |
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.chroma_format_idc = sps->chroma_format_idc, |
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.tiles_enabled_flag = pps->tiles_enabled_flag, |
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.separate_colour_plane_flag = sps->separate_colour_plane_flag, |
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.pcm_enabled_flag = sps->pcm_enabled_flag, |
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.scaling_list_enabled_flag = sps->scaling_list_enable_flag, |
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.transform_skip_enabled_flag = pps->transform_skip_enabled_flag, |
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.amp_enabled_flag = sps->amp_enabled_flag, |
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.strong_intra_smoothing_enabled_flag = sps->sps_strong_intra_smoothing_enable_flag, |
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.sign_data_hiding_enabled_flag = pps->sign_data_hiding_flag, |
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.constrained_intra_pred_flag = pps->constrained_intra_pred_flag, |
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.cu_qp_delta_enabled_flag = pps->cu_qp_delta_enabled_flag, |
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.weighted_pred_flag = pps->weighted_pred_flag, |
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.weighted_bipred_flag = pps->weighted_bipred_flag, |
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.transquant_bypass_enabled_flag = pps->transquant_bypass_enable_flag, |
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.entropy_coding_sync_enabled_flag = pps->entropy_coding_sync_enabled_flag, |
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.pps_loop_filter_across_slices_enabled_flag = pps->seq_loop_filter_across_slices_enabled_flag, |
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.loop_filter_across_tiles_enabled_flag = pps->loop_filter_across_tiles_enabled_flag, |
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.pcm_loop_filter_disabled_flag = sps->pcm.loop_filter_disable_flag, |
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}, |
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.slice_parsing_fields.bits = { |
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.lists_modification_present_flag = pps->lists_modification_present_flag, |
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.long_term_ref_pics_present_flag = sps->long_term_ref_pics_present_flag, |
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.sps_temporal_mvp_enabled_flag = sps->sps_temporal_mvp_enabled_flag, |
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.cabac_init_present_flag = pps->cabac_init_present_flag, |
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.output_flag_present_flag = pps->output_flag_present_flag, |
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.dependent_slice_segments_enabled_flag = pps->dependent_slice_segments_enabled_flag, |
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.pps_slice_chroma_qp_offsets_present_flag = pps->pic_slice_level_chroma_qp_offsets_present_flag, |
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.sample_adaptive_offset_enabled_flag = sps->sao_enabled, |
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.deblocking_filter_override_enabled_flag = pps->deblocking_filter_override_enabled_flag, |
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.pps_disable_deblocking_filter_flag = pps->disable_dbf, |
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.slice_segment_header_extension_present_flag = pps->slice_header_extension_present_flag, |
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.RapPicFlag = IS_IRAP(h), |
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.IdrPicFlag = IS_IDR(h), |
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.IntraPicFlag = IS_IRAP(h), |
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}, |
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}; |
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fill_vaapi_pic(&pic->pic_param.CurrPic, h->ref, 0); |
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fill_vaapi_reference_frames(h, &pic->pic_param); |
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if (pps->tiles_enabled_flag) { |
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pic->pic_param.num_tile_columns_minus1 = pps->num_tile_columns - 1; |
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pic->pic_param.num_tile_rows_minus1 = pps->num_tile_rows - 1; |
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for (i = 0; i < pps->num_tile_columns; i++) |
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pic->pic_param.column_width_minus1[i] = pps->column_width[i] - 1; |
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for (i = 0; i < pps->num_tile_rows; i++) |
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pic->pic_param.row_height_minus1[i] = pps->row_height[i] - 1; |
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} |
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if (h->sh.short_term_ref_pic_set_sps_flag == 0 && h->sh.short_term_rps) { |
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pic->pic_param.st_rps_bits = h->sh.short_term_ref_pic_set_size; |
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} else { |
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pic->pic_param.st_rps_bits = 0; |
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} |
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err = ff_vaapi_decode_make_param_buffer(avctx, &pic->pic, |
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VAPictureParameterBufferType, |
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&pic->pic_param, sizeof(pic->pic_param)); |
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if (err < 0) |
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goto fail; |
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if (pps->scaling_list_data_present_flag) |
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scaling_list = &pps->scaling_list; |
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else if (sps->scaling_list_enable_flag) |
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scaling_list = &sps->scaling_list; |
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if (scaling_list) { |
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VAIQMatrixBufferHEVC iq_matrix; |
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int j; |
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for (i = 0; i < 6; i++) { |
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for (j = 0; j < 16; j++) |
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iq_matrix.ScalingList4x4[i][j] = scaling_list->sl[0][i][j]; |
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for (j = 0; j < 64; j++) { |
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iq_matrix.ScalingList8x8[i][j] = scaling_list->sl[1][i][j]; |
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iq_matrix.ScalingList16x16[i][j] = scaling_list->sl[2][i][j]; |
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if (i < 2) |
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iq_matrix.ScalingList32x32[i][j] = scaling_list->sl[3][i][j]; |
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} |
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iq_matrix.ScalingListDC16x16[i] = scaling_list->sl_dc[0][i]; |
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if (i < 2) |
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iq_matrix.ScalingListDC32x32[i] = scaling_list->sl_dc[1][i]; |
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} |
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err = ff_vaapi_decode_make_param_buffer(avctx, &pic->pic, |
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VAIQMatrixBufferType, |
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&iq_matrix, sizeof(iq_matrix)); |
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if (err < 0) |
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goto fail; |
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} |
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return 0; |
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fail: |
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ff_vaapi_decode_cancel(avctx, &pic->pic); |
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return err; |
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} |
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static int vaapi_hevc_end_frame(AVCodecContext *avctx) |
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{ |
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const HEVCContext *h = avctx->priv_data; |
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VAAPIDecodePictureHEVC *pic = h->ref->hwaccel_picture_private; |
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int ret; |
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if (pic->last_size) { |
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pic->last_slice_param.LongSliceFlags.fields.LastSliceOfPic = 1; |
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ret = ff_vaapi_decode_make_slice_buffer(avctx, &pic->pic, |
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&pic->last_slice_param, sizeof(pic->last_slice_param), |
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pic->last_buffer, pic->last_size); |
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if (ret < 0) |
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goto fail; |
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} |
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ret = ff_vaapi_decode_issue(avctx, &pic->pic); |
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if (ret < 0) |
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goto fail; |
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return 0; |
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fail: |
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ff_vaapi_decode_cancel(avctx, &pic->pic); |
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return ret; |
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} |
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static void fill_pred_weight_table(const HEVCContext *h, |
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const SliceHeader *sh, |
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VASliceParameterBufferHEVC *slice_param) |
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{ |
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int i; |
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memset(slice_param->delta_luma_weight_l0, 0, sizeof(slice_param->delta_luma_weight_l0)); |
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memset(slice_param->delta_luma_weight_l1, 0, sizeof(slice_param->delta_luma_weight_l1)); |
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memset(slice_param->luma_offset_l0, 0, sizeof(slice_param->luma_offset_l0)); |
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memset(slice_param->luma_offset_l1, 0, sizeof(slice_param->luma_offset_l1)); |
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memset(slice_param->delta_chroma_weight_l0, 0, sizeof(slice_param->delta_chroma_weight_l0)); |
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memset(slice_param->delta_chroma_weight_l1, 0, sizeof(slice_param->delta_chroma_weight_l1)); |
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memset(slice_param->ChromaOffsetL0, 0, sizeof(slice_param->ChromaOffsetL0)); |
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memset(slice_param->ChromaOffsetL1, 0, sizeof(slice_param->ChromaOffsetL1)); |
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slice_param->delta_chroma_log2_weight_denom = 0; |
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slice_param->luma_log2_weight_denom = 0; |
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if (sh->slice_type == HEVC_SLICE_I || |
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(sh->slice_type == HEVC_SLICE_P && !h->ps.pps->weighted_pred_flag) || |
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(sh->slice_type == HEVC_SLICE_B && !h->ps.pps->weighted_bipred_flag)) |
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return; |
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slice_param->luma_log2_weight_denom = sh->luma_log2_weight_denom; |
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if (h->ps.sps->chroma_format_idc) { |
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slice_param->delta_chroma_log2_weight_denom = sh->chroma_log2_weight_denom - sh->luma_log2_weight_denom; |
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} |
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for (i = 0; i < 15 && i < sh->nb_refs[L0]; i++) { |
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slice_param->delta_luma_weight_l0[i] = sh->luma_weight_l0[i] - (1 << sh->luma_log2_weight_denom); |
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slice_param->luma_offset_l0[i] = sh->luma_offset_l0[i]; |
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slice_param->delta_chroma_weight_l0[i][0] = sh->chroma_weight_l0[i][0] - (1 << sh->chroma_log2_weight_denom); |
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slice_param->delta_chroma_weight_l0[i][1] = sh->chroma_weight_l0[i][1] - (1 << sh->chroma_log2_weight_denom); |
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slice_param->ChromaOffsetL0[i][0] = sh->chroma_offset_l0[i][0]; |
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slice_param->ChromaOffsetL0[i][1] = sh->chroma_offset_l0[i][1]; |
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} |
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if (sh->slice_type == HEVC_SLICE_B) { |
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for (i = 0; i < 15 && i < sh->nb_refs[L1]; i++) { |
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slice_param->delta_luma_weight_l1[i] = sh->luma_weight_l1[i] - (1 << sh->luma_log2_weight_denom); |
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slice_param->luma_offset_l1[i] = sh->luma_offset_l1[i]; |
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slice_param->delta_chroma_weight_l1[i][0] = sh->chroma_weight_l1[i][0] - (1 << sh->chroma_log2_weight_denom); |
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slice_param->delta_chroma_weight_l1[i][1] = sh->chroma_weight_l1[i][1] - (1 << sh->chroma_log2_weight_denom); |
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slice_param->ChromaOffsetL1[i][0] = sh->chroma_offset_l1[i][0]; |
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slice_param->ChromaOffsetL1[i][1] = sh->chroma_offset_l1[i][1]; |
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} |
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} |
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} |
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static uint8_t get_ref_pic_index(const HEVCContext *h, const HEVCFrame *frame) |
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{ |
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VAAPIDecodePictureHEVC *pic = h->ref->hwaccel_picture_private; |
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VAPictureParameterBufferHEVC *pp = &pic->pic_param; |
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uint8_t i; |
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if (!frame) |
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return 0xff; |
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for (i = 0; i < FF_ARRAY_ELEMS(pp->ReferenceFrames); i++) { |
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VASurfaceID pid = pp->ReferenceFrames[i].picture_id; |
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int poc = pp->ReferenceFrames[i].pic_order_cnt; |
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if (pid != VA_INVALID_ID && pid == ff_vaapi_get_surface_id(frame->frame) && poc == frame->poc) |
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return i; |
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} |
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return 0xff; |
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} |
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static int vaapi_hevc_decode_slice(AVCodecContext *avctx, |
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const uint8_t *buffer, |
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uint32_t size) |
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{ |
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const HEVCContext *h = avctx->priv_data; |
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const SliceHeader *sh = &h->sh; |
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VAAPIDecodePictureHEVC *pic = h->ref->hwaccel_picture_private; |
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int nb_list = (sh->slice_type == HEVC_SLICE_B) ? |
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2 : (sh->slice_type == HEVC_SLICE_I ? 0 : 1); |
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int err, i, list_idx; |
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if (!sh->first_slice_in_pic_flag) { |
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err = ff_vaapi_decode_make_slice_buffer(avctx, &pic->pic, |
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&pic->last_slice_param, sizeof(pic->last_slice_param), |
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pic->last_buffer, pic->last_size); |
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pic->last_buffer = NULL; |
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pic->last_size = 0; |
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if (err) { |
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ff_vaapi_decode_cancel(avctx, &pic->pic); |
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return err; |
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} |
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} |
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pic->last_slice_param = (VASliceParameterBufferHEVC) { |
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.slice_data_size = size, |
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.slice_data_offset = 0, |
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.slice_data_flag = VA_SLICE_DATA_FLAG_ALL, |
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/* Add 1 to the bits count here to account for the byte_alignment bit, which
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* always is at least one bit and not accounted for otherwise. */ |
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.slice_data_byte_offset = (get_bits_count(&h->HEVClc.gb) + 1 + 7) / 8, |
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.slice_segment_address = sh->slice_segment_addr, |
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.slice_qp_delta = sh->slice_qp_delta, |
||||
.slice_cb_qp_offset = sh->slice_cb_qp_offset, |
||||
.slice_cr_qp_offset = sh->slice_cr_qp_offset, |
||||
.slice_beta_offset_div2 = sh->beta_offset / 2, |
||||
.slice_tc_offset_div2 = sh->tc_offset / 2, |
||||
.collocated_ref_idx = sh->slice_temporal_mvp_enabled_flag ? sh->collocated_ref_idx : 0xFF, |
||||
.five_minus_max_num_merge_cand = sh->slice_type == HEVC_SLICE_I ? 0 : 5 - sh->max_num_merge_cand, |
||||
.num_ref_idx_l0_active_minus1 = sh->nb_refs[L0] ? sh->nb_refs[L0] - 1 : 0, |
||||
.num_ref_idx_l1_active_minus1 = sh->nb_refs[L1] ? sh->nb_refs[L1] - 1 : 0, |
||||
|
||||
.LongSliceFlags.fields = { |
||||
.dependent_slice_segment_flag = sh->dependent_slice_segment_flag, |
||||
.slice_type = sh->slice_type, |
||||
.color_plane_id = sh->colour_plane_id, |
||||
.mvd_l1_zero_flag = sh->mvd_l1_zero_flag, |
||||
.cabac_init_flag = sh->cabac_init_flag, |
||||
.slice_temporal_mvp_enabled_flag = sh->slice_temporal_mvp_enabled_flag, |
||||
.slice_deblocking_filter_disabled_flag = sh->disable_deblocking_filter_flag, |
||||
.collocated_from_l0_flag = sh->collocated_list == L0 ? 1 : 0, |
||||
.slice_loop_filter_across_slices_enabled_flag = sh->slice_loop_filter_across_slices_enabled_flag, |
||||
.slice_sao_luma_flag = sh->slice_sample_adaptive_offset_flag[0], |
||||
.slice_sao_chroma_flag = sh->slice_sample_adaptive_offset_flag[1], |
||||
}, |
||||
}; |
||||
|
||||
memset(pic->last_slice_param.RefPicList, 0xFF, sizeof(pic->last_slice_param.RefPicList)); |
||||
|
||||
for (list_idx = 0; list_idx < nb_list; list_idx++) { |
||||
RefPicList *rpl = &h->ref->refPicList[list_idx]; |
||||
|
||||
for (i = 0; i < rpl->nb_refs; i++) |
||||
pic->last_slice_param.RefPicList[list_idx][i] = get_ref_pic_index(h, rpl->ref[i]); |
||||
} |
||||
|
||||
fill_pred_weight_table(h, sh, &pic->last_slice_param); |
||||
|
||||
pic->last_buffer = buffer; |
||||
pic->last_size = size; |
||||
|
||||
return 0; |
||||
} |
||||
|
||||
AVHWAccel ff_hevc_vaapi_hwaccel = { |
||||
.name = "hevc_vaapi", |
||||
.type = AVMEDIA_TYPE_VIDEO, |
||||
.id = AV_CODEC_ID_HEVC, |
||||
.pix_fmt = AV_PIX_FMT_VAAPI, |
||||
.start_frame = vaapi_hevc_start_frame, |
||||
.end_frame = vaapi_hevc_end_frame, |
||||
.decode_slice = vaapi_hevc_decode_slice, |
||||
.frame_priv_data_size = sizeof(VAAPIDecodePictureHEVC), |
||||
.init = ff_vaapi_decode_init, |
||||
.uninit = ff_vaapi_decode_uninit, |
||||
.priv_data_size = sizeof(VAAPIDecodeContext), |
||||
.caps_internal = HWACCEL_CAP_ASYNC_SAFE, |
||||
}; |
||||
Loading…
Reference in new issue