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152 lines
5 KiB
C
152 lines
5 KiB
C
#ifndef ENCODER_H_
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#define ENCODER_H_
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/*****************************************************************************
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* This file is part of Kvazaar HEVC encoder.
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*
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* Copyright (C) 2013-2014 Tampere University of Technology and others (see
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* COPYING file).
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*
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* Kvazaar is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation.
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*
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* Kvazaar 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Kvazaar. If not, see <http://www.gnu.org/licenses/>.
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****************************************************************************/
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/*
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* \file
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* \brief The highest level of the encoder.
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*/
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#include "global.h"
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#include "picture.h"
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#include "bitstream.h"
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#include "cabac.h"
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#include "config.h"
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#include "tables.h"
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#include "scalinglist.h"
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/* TODO: add ME data */
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typedef struct
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{
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void (*IME)();
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void (*FME)();
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int range;
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} encoder_me;
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enum { FORMAT_400 = 0, FORMAT_420, FORMAT_422, FORMAT_444 };
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/* Input info struct */
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typedef struct
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{
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FILE *file;
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int32_t real_width; /*!< \brief real input picture width */
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int32_t real_height; /*!< \brief real input picture width */
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picture *cur_pic;
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int8_t video_format;
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int8_t bitdepth; /*!< \brief input bit depth (8,10) */
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} encoder_input;
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/* Encoder control options, the main struct */
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typedef struct
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{
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int32_t frame;
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int32_t poc; /*!< \brief picture order count */
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const config *cfg;
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encoder_input in;
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encoder_me me;
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bitstream stream;
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FILE *output;
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picture_list *ref;
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int8_t ref_list;
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int8_t ref_idx_num[2];
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int8_t QP; // \brief Quantization parameter
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int8_t bitdepth;
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/* Filtering */
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int8_t deblock_enable; // \brief Flag to enable deblocking filter
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int8_t sao_enable; // \brief Flag to enable sample adaptive offset filter
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int8_t rdoq_enable; // \brief Whether RDOQ is enabled or not.
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int8_t rdo; // \brief RDO level
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int8_t trskip_enable; // \brief Flag to enable transform skipping (4x4 intra)
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int8_t beta_offset_div2; // \brief (deblocking) beta offset (div 2), range -6...6
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int8_t tc_offset_div2; // \brief (deblocking)tc offset (div 2), range -6...6
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/* VUI */
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struct
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{
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int16_t sar_width;
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int16_t sar_height;
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int8_t overscan;
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int8_t videoformat;
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int8_t fullrange;
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int8_t colorprim;
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int8_t transfer;
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int8_t colormatrix;
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int8_t chroma_loc;
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} vui;
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int8_t aud_enable;
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//scaling list
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scaling_list scaling_list;
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} encoder_control;
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void init_lambda(const encoder_control * const encoder);
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encoder_control *init_encoder_control(config *cfg);
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void init_encoder_input(encoder_input *input, FILE* inputfile,
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int32_t width, int32_t height);
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void encode_one_frame(encoder_control *encoder);
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int read_one_frame(FILE *file, const encoder_control * const encoder);
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void encode_seq_parameter_set(encoder_control * const encoder);
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void encode_pic_parameter_set(encoder_control * const encoder);
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void encode_vid_parameter_set(encoder_control * const encoder);
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void encode_slice_header(encoder_control * const encoder);
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void encode_access_unit_delimiter(encoder_control * const encoder);
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void encode_prefix_sei_version(encoder_control * const encoder);
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void encode_coding_tree(const encoder_control * const encoder, cabac_data *cabac, uint16_t x_ctb,
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uint16_t y_ctb, uint8_t depth);
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void encode_last_significant_xy(cabac_data *cabac,
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uint8_t lastpos_x, uint8_t lastpos_y,
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uint8_t width, uint8_t height,
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uint8_t type, uint8_t scan);
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void encode_coeff_nxn(const encoder_control * const encoder, cabac_data *cabac, int16_t *coeff, uint8_t width,
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uint8_t type, int8_t scan_mode, int8_t tr_skip);
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void encode_transform_tree(const encoder_control * const encoder, cabac_data* cabac, int32_t x, int32_t y, uint8_t depth, lcu_t* lcu );
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void encode_transform_coeff(const encoder_control * const encoder, cabac_data *cabac, int32_t x_cu, int32_t y_cu,
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int8_t depth, int8_t tr_depth, uint8_t parent_coeff_u, uint8_t parent_coeff_v);
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void encode_block_residual(const encoder_control * const encoder,
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uint16_t x_ctb, uint16_t y_ctb, uint8_t depth);
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extern double g_lambda_cost[55];
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extern double g_cur_lambda_cost;
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static const uint8_t g_group_idx[32] = {
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0, 1, 2, 3, 4, 4, 5, 5, 6, 6,
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6, 6, 7, 7, 7, 7, 8, 8, 8, 8,
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8, 8, 8, 8, 9, 9, 9, 9, 9, 9,
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9, 9 };
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static const uint8_t g_min_in_group[10] = {
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0, 1, 2, 3, 4, 6, 8, 12, 16, 24 };
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#define C1FLAG_NUMBER 8 // maximum number of largerThan1 flag coded in one chunk
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#define C2FLAG_NUMBER 1 // maximum number of largerThan2 flag coded in one chunk
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#endif
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