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Diffstat (limited to 'Src/h264dec/ldecod/inc/parsetcommon.h')
| -rw-r--r-- | Src/h264dec/ldecod/inc/parsetcommon.h | 202 |
1 files changed, 202 insertions, 0 deletions
diff --git a/Src/h264dec/ldecod/inc/parsetcommon.h b/Src/h264dec/ldecod/inc/parsetcommon.h new file mode 100644 index 00000000..16a64098 --- /dev/null +++ b/Src/h264dec/ldecod/inc/parsetcommon.h @@ -0,0 +1,202 @@ + +/*! + ************************************************************************************** + * \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 <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 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 |