/*! ************************************************************************************** * \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 *************************************************************************************** */ // 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