www.pudn.com > JM.rar > parsetcommon.h
/*!
**************************************************************************************
* \file
* parsetcommon.h
* \brief
* Picture and Sequence Parameter Sets, structures common to encoder and decoder
* This code reflects JVT version xxx
* \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 signalled 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 SIZEslice_group_id (sizeof (int) * 60000) // should be sufficient for HUGE pictures, need one int per MB in a picture
#define MAXSPS 32
#define MAXPPS 256
//! Boolean Type
#ifdef FALSE
# define Boolean int
#else
typedef enum {
FALSE,
TRUE
} Boolean;
#endif
#define MAXIMUMVALUEOFcpb_cnt 32
typedef struct
{
unsigned cpb_cnt_minus1; // ue(v)
unsigned bit_rate_scale; // u(4)
unsigned cpb_size_scale; // u(4)
unsigned bit_rate_value_minus1 [MAXIMUMVALUEOFcpb_cnt]; // ue(v)
unsigned cpb_size_value_minus1 [MAXIMUMVALUEOFcpb_cnt]; // ue(v)
unsigned cbr_flag [MAXIMUMVALUEOFcpb_cnt]; // u(1)
unsigned initial_cpb_removal_delay_length_minus1; // u(5)
unsigned cpb_removal_delay_length_minus1; // u(5)
unsigned dpb_output_delay_length_minus1; // u(5)
unsigned time_offset_length; // u(5)
} hrd_parameters_t;
typedef struct
{
Boolean aspect_ratio_info_present_flag; // u(1)
unsigned aspect_ratio_idc; // u(8)
unsigned sar_width; // u(16)
unsigned 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 video_format; // u(3)
Boolean video_full_range_flag; // u(1)
Boolean colour_description_present_flag; // u(1)
unsigned colour_primaries; // u(8)
unsigned transfer_characteristics; // u(8)
unsigned matrix_coefficients; // u(8)
Boolean chroma_location_info_present_flag; // u(1)
unsigned chroma_sample_loc_type_top_field; // ue(v)
unsigned chroma_sample_loc_type_bottom_field; // ue(v)
Boolean timing_info_present_flag; // u(1)
unsigned num_units_in_tick; // u(32)
unsigned 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 max_bytes_per_pic_denom; // ue(v)
unsigned max_bits_per_mb_denom; // ue(v)
unsigned log2_max_mv_length_vertical; // ue(v)
unsigned log2_max_mv_length_horizontal; // ue(v)
unsigned num_reorder_frames; // ue(v)
unsigned 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 pic_parameter_set_id; // ue(v)
unsigned 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[8]; // u(1)
int ScalingList4x4[6][16]; // se(v)
int ScalingList8x8[2][64]; // se(v)
Boolean UseDefaultScalingMatrix4x4Flag[6];
Boolean UseDefaultScalingMatrix8x8Flag[2];
// if( pic_order_cnt_type < 2 ) in the sequence parameter set
Boolean pic_order_present_flag; // u(1)
unsigned num_slice_groups_minus1; // ue(v)
unsigned slice_group_map_type; // ue(v)
// if( slice_group_map_type = = 0 )
unsigned run_length_minus1[MAXnum_slice_groups_minus1]; // ue(v)
// else if( slice_group_map_type = = 2 )
unsigned top_left[MAXnum_slice_groups_minus1]; // ue(v)
unsigned 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 slice_group_change_rate_minus1; // ue(v)
// else if( slice_group_map_type = = 6 )
unsigned num_slice_group_map_units_minus1; // ue(v)
unsigned *slice_group_id; // complete MBAmap u(v)
unsigned num_ref_idx_l0_active_minus1; // ue(v)
unsigned num_ref_idx_l1_active_minus1; // ue(v)
Boolean weighted_pred_flag; // u(1)
Boolean 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 cb_qp_index_offset; // se(v)
int cr_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 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 level_idc; // u(8)
unsigned seq_parameter_set_id; // ue(v)
Boolean seq_scaling_matrix_present_flag; // u(1)
int seq_scaling_list_present_flag[8]; // u(1)
int ScalingList4x4[6][16]; // se(v)
int ScalingList8x8[2][64]; // se(v)
Boolean UseDefaultScalingMatrix4x4Flag[6];
Boolean UseDefaultScalingMatrix8x8Flag[2];
unsigned bit_depth_luma_minus8; // ue(v)
unsigned bit_depth_chroma_minus8; // ue(v)
unsigned log2_max_frame_num_minus4; // ue(v)
unsigned pic_order_cnt_type;
// if( pic_order_cnt_type == 0 )
unsigned 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 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 num_ref_frames; // ue(v)
Boolean gaps_in_frame_num_value_allowed_flag; // u(1)
unsigned pic_width_in_mbs_minus1; // ue(v)
unsigned 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 frame_cropping_rect_left_offset; // ue(v)
unsigned frame_cropping_rect_right_offset; // ue(v)
unsigned frame_cropping_rect_top_offset; // ue(v)
unsigned 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
} seq_parameter_set_rbsp_t;
pic_parameter_set_rbsp_t *AllocPPS ();
seq_parameter_set_rbsp_t *AllocSPS ();
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