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- /*!
- **************************************************************************************
- * \file
- * parsetcommon.h
- * \brief
- * Picture and Sequence Parameter Sets, structures common to encoder and decoder
- *
- * \date 25 November 2002
- * \author
- * Main contributors (see contributors.h for copyright, address and affiliation details)
- * - Stephan Wenger <[email protected]>
- ***************************************************************************************
- */
- // In the JVT syntax, frequently flags are used that indicate the presence of
- // certain pieces of information in the NALU. Here, these flags are also
- // present. In the encoder, those bits indicate that the values signaled to
- // be present are meaningful and that this part of the syntax should be
- // written to the NALU. In the decoder, the flag indicates that information
- // was received from the decoded NALU and should be used henceforth.
- // The structure names were chosen as indicated in the JVT syntax
- #ifndef _PARSETCOMMON_H_
- #define _PARSETCOMMON_H_
- #include "defines.h"
- #define MAXIMUMPARSETRBSPSIZE 1500
- #define MAXIMUMPARSETNALUSIZE 1500
- #define MAXSPS 32
- #define MAXPPS 256
- #define MAXIMUMVALUEOFcpb_cnt 32
- typedef struct
- {
- unsigned int cpb_cnt_minus1; // ue(v)
- unsigned int bit_rate_scale; // u(4)
- unsigned int cpb_size_scale; // u(4)
- unsigned int bit_rate_value_minus1 [MAXIMUMVALUEOFcpb_cnt]; // ue(v)
- unsigned int cpb_size_value_minus1 [MAXIMUMVALUEOFcpb_cnt]; // ue(v)
- unsigned int cbr_flag [MAXIMUMVALUEOFcpb_cnt]; // u(1)
- unsigned int initial_cpb_removal_delay_length_minus1; // u(5)
- unsigned int cpb_removal_delay_length_minus1; // u(5)
- unsigned int dpb_output_delay_length_minus1; // u(5)
- unsigned int time_offset_length; // u(5)
- } hrd_parameters_t;
- typedef struct
- {
- Boolean aspect_ratio_info_present_flag; // u(1)
- unsigned int aspect_ratio_idc; // u(8)
- unsigned short sar_width; // u(16)
- unsigned short sar_height; // u(16)
- Boolean overscan_info_present_flag; // u(1)
- Boolean overscan_appropriate_flag; // u(1)
- Boolean video_signal_type_present_flag; // u(1)
- unsigned int video_format; // u(3)
- Boolean video_full_range_flag; // u(1)
- Boolean colour_description_present_flag; // u(1)
- unsigned int colour_primaries; // u(8)
- unsigned int transfer_characteristics; // u(8)
- unsigned int matrix_coefficients; // u(8)
- Boolean chroma_location_info_present_flag; // u(1)
- unsigned int chroma_sample_loc_type_top_field; // ue(v)
- unsigned int chroma_sample_loc_type_bottom_field; // ue(v)
- Boolean timing_info_present_flag; // u(1)
- unsigned int num_units_in_tick; // u(32)
- unsigned int time_scale; // u(32)
- Boolean fixed_frame_rate_flag; // u(1)
- Boolean nal_hrd_parameters_present_flag; // u(1)
- hrd_parameters_t nal_hrd_parameters; // hrd_paramters_t
- Boolean vcl_hrd_parameters_present_flag; // u(1)
- hrd_parameters_t vcl_hrd_parameters; // hrd_paramters_t
- // if ((nal_hrd_parameters_present_flag || (vcl_hrd_parameters_present_flag))
- Boolean low_delay_hrd_flag; // u(1)
- Boolean pic_struct_present_flag; // u(1)
- Boolean bitstream_restriction_flag; // u(1)
- Boolean motion_vectors_over_pic_boundaries_flag; // u(1)
- unsigned int max_bytes_per_pic_denom; // ue(v)
- unsigned int max_bits_per_mb_denom; // ue(v)
- unsigned int log2_max_mv_length_vertical; // ue(v)
- unsigned int log2_max_mv_length_horizontal; // ue(v)
- unsigned int num_reorder_frames; // ue(v)
- unsigned int max_dec_frame_buffering; // ue(v)
- } vui_seq_parameters_t;
- #define MAXnum_slice_groups_minus1 8
- typedef struct
- {
- Boolean Valid; // indicates the parameter set is valid
- unsigned int pic_parameter_set_id; // ue(v)
- unsigned int seq_parameter_set_id; // ue(v)
- Boolean entropy_coding_mode_flag; // u(1)
- Boolean transform_8x8_mode_flag; // u(1)
- Boolean pic_scaling_matrix_present_flag; // u(1)
- int pic_scaling_list_present_flag[12]; // u(1)
- int ScalingList4x4[6][16]; // se(v)
- int ScalingList8x8[6][64]; // se(v)
- Boolean UseDefaultScalingMatrix4x4Flag[6];
- Boolean UseDefaultScalingMatrix8x8Flag[6];
- // if( pic_order_cnt_type < 2 ) in the sequence parameter set
- Boolean bottom_field_pic_order_in_frame_present_flag; // u(1)
- unsigned int num_slice_groups_minus1; // ue(v)
- unsigned int slice_group_map_type; // ue(v)
- // if( slice_group_map_type = = 0 )
- unsigned int run_length_minus1[MAXnum_slice_groups_minus1]; // ue(v)
- // else if( slice_group_map_type = = 2 )
- unsigned int top_left[MAXnum_slice_groups_minus1]; // ue(v)
- unsigned int bottom_right[MAXnum_slice_groups_minus1]; // ue(v)
- // else if( slice_group_map_type = = 3 || 4 || 5
- Boolean slice_group_change_direction_flag; // u(1)
- unsigned int slice_group_change_rate_minus1; // ue(v)
- // else if( slice_group_map_type = = 6 )
- unsigned int pic_size_in_map_units_minus1; // ue(v)
- byte *slice_group_id; // complete MBAmap u(v)
- int num_ref_idx_l0_active_minus1; // ue(v)
- int num_ref_idx_l1_active_minus1; // ue(v)
- Boolean weighted_pred_flag; // u(1)
- unsigned int weighted_bipred_idc; // u(2)
- int pic_init_qp_minus26; // se(v)
- int pic_init_qs_minus26; // se(v)
- int chroma_qp_index_offset; // se(v)
- int second_chroma_qp_index_offset; // se(v)
- Boolean deblocking_filter_control_present_flag; // u(1)
- Boolean constrained_intra_pred_flag; // u(1)
- Boolean redundant_pic_cnt_present_flag; // u(1)
- } pic_parameter_set_rbsp_t;
- #define MAXnum_ref_frames_in_pic_order_cnt_cycle 256
- typedef struct
- {
- Boolean Valid; // indicates the parameter set is valid
- unsigned int profile_idc; // u(8)
- Boolean constrained_set0_flag; // u(1)
- Boolean constrained_set1_flag; // u(1)
- Boolean constrained_set2_flag; // u(1)
- Boolean constrained_set3_flag; // u(1)
- unsigned int level_idc; // u(8)
- unsigned int seq_parameter_set_id; // ue(v)
- unsigned int chroma_format_idc; // ue(v)
- Boolean seq_scaling_matrix_present_flag; // u(1)
- int seq_scaling_list_present_flag[12]; // u(1)
- int ScalingList4x4[6][16]; // se(v)
- int ScalingList8x8[6][64]; // se(v)
- Boolean UseDefaultScalingMatrix4x4Flag[6];
- Boolean UseDefaultScalingMatrix8x8Flag[6];
- unsigned int bit_depth_luma_minus8; // ue(v)
- unsigned int bit_depth_chroma_minus8; // ue(v)
- unsigned int log2_max_frame_num_minus4; // ue(v)
- unsigned int pic_order_cnt_type;
- // if( pic_order_cnt_type == 0 )
- unsigned int log2_max_pic_order_cnt_lsb_minus4; // ue(v)
- // else if( pic_order_cnt_type == 1 )
- Boolean delta_pic_order_always_zero_flag; // u(1)
- int offset_for_non_ref_pic; // se(v)
- int offset_for_top_to_bottom_field; // se(v)
- unsigned int num_ref_frames_in_pic_order_cnt_cycle; // ue(v)
- // for( i = 0; i < num_ref_frames_in_pic_order_cnt_cycle; i++ )
- int offset_for_ref_frame[MAXnum_ref_frames_in_pic_order_cnt_cycle]; // se(v)
- unsigned int num_ref_frames; // ue(v)
- Boolean gaps_in_frame_num_value_allowed_flag; // u(1)
- unsigned int pic_width_in_mbs_minus1; // ue(v)
- unsigned int pic_height_in_map_units_minus1; // ue(v)
- Boolean frame_mbs_only_flag; // u(1)
- // if( !frame_mbs_only_flag )
- Boolean mb_adaptive_frame_field_flag; // u(1)
- Boolean direct_8x8_inference_flag; // u(1)
- Boolean frame_cropping_flag; // u(1)
- unsigned int frame_cropping_rect_left_offset; // ue(v)
- unsigned int frame_cropping_rect_right_offset; // ue(v)
- unsigned int frame_cropping_rect_top_offset; // ue(v)
- unsigned int frame_cropping_rect_bottom_offset; // ue(v)
- Boolean vui_parameters_present_flag; // u(1)
- vui_seq_parameters_t vui_seq_parameters; // vui_seq_parameters_t
- unsigned separate_colour_plane_flag; // u(1)
- } seq_parameter_set_rbsp_t;
- pic_parameter_set_rbsp_t *AllocPPS (void);
- seq_parameter_set_rbsp_t *AllocSPS (void);
- void FreePPS (pic_parameter_set_rbsp_t *pps);
- void FreeSPS (seq_parameter_set_rbsp_t *sps);
- int sps_is_equal(seq_parameter_set_rbsp_t *sps1, seq_parameter_set_rbsp_t *sps2);
- int pps_is_equal(pic_parameter_set_rbsp_t *pps1, pic_parameter_set_rbsp_t *pps2);
- #endif
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