📄 parsetcommon.h
字号:
/*! ************************************************************************************** * \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 <stewe@cs.tu-berlin.de> *************************************************************************************** */// 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_#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 128//! Boolean Typetypedef enum { FALSE, TRUE} Boolean;#define MAXIMUMVALUEOFcpb_cnt 32typedef struct{ unsigned cpb_cnt; // ue(v) unsigned bit_rate_scale; // u(4) unsigned cpb_size_scale; // u(4) unsigned bit_rate_value [MAXIMUMVALUEOFcpb_cnt]; // ue(v) unsigned cpb_size_value[MAXIMUMVALUEOFcpb_cnt]; // ue(v) unsigned vbr_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_location_frame; // ue(v) unsigned chroma_location_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 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 max_dec_frame_reordering; // ue(v) unsigned max_dec_frame_buffering; // ue(v)} vui_seq_parameters_t;#define MAXnum_slice_groups_minus1 8typedef 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) // 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) Boolean deblocking_filter_control_present_flag; // u(1) Boolean constrained_intra_pred_flag; // u(1) Boolean redundant_pic_cnt_present_flag; // u(1) Boolean vui_pic_parameters_flag; // u(1)#ifndef G50_SPS 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)#endif} pic_parameter_set_rbsp_t;#define MAXnum_ref_frames_in_pic_order_cnt_cycle 256typedef struct{ Boolean Valid; // indicates the parameter set is valid unsigned profile_idc; // u(8)#ifdef G50_SPS Boolean constrained_set0_flag; // u(1) Boolean constrained_set1_flag; // u(1) Boolean constrained_set2_flag; // u(1)#endif unsigned level_idc; // u(8)#ifndef G50_SPS Boolean more_than_one_slice_group_allowed_flag; // u(1) Boolean arbitrary_slice_order_allowed_flag; // u(1) Boolean redundant_slices_allowed_flag; // u(1)#endif unsigned seq_parameter_set_id; // 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)#ifdef G50_SPS 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)#endif 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);#endif⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -