header.c File Reference
H.264 Slice headers. More...
#include "global.h"
#include "elements.h"
#include "defines.h"
#include "fmo.h"
#include "vlc.h"
#include "mbuffer.h"
#include "header.h"
#include "ctx_tables.h"
Go to the source code of this file.
Defines | |
| #define | SYMTRACESTRING(s) |
Functions | |
| static void | ref_pic_list_reordering (Slice *currSlice) |
| static void | pred_weight_table (Slice *currSlice) |
| unsigned | CeilLog2 (unsigned uiVal) |
| unsigned | CeilLog2_sf (unsigned uiVal) |
| int | FirstPartOfSliceHeader (Slice *currSlice) |
| int | RestOfSliceHeader (Slice *currSlice) |
| static void | reset_wp_params (ImageParameters *img) |
| void | dec_ref_pic_marking (Bitstream *currStream) |
| void | decode_poc (ImageParameters *img) |
| int | dumppoc (ImageParameters *img) |
| int | picture_order (ImageParameters *img) |
Variables | |
| StorablePicture * | dec_picture |
| int | UsedBits |
Detailed Description
H.264 Slice headers.
Definition in file header.c.
Function Documentation
| unsigned CeilLog2 | ( | unsigned | uiVal | ) |
calculate Ceil(Log2(uiVal))
Definition at line 42 of file header.c.
Referenced by interpret_motion_constrained_slice_group_set_info(), and RestOfSliceHeader().
| void dec_ref_pic_marking | ( | Bitstream * | currStream | ) |
read the memory control operations
Definition at line 528 of file header.c.
References DecRefPicMarking_s::difference_of_pic_nums_minus1, DecRefPicMarking_s::long_term_frame_idx, DecRefPicMarking_s::long_term_pic_num, DecRefPicMarking_s::max_long_term_frame_idx_plus1, DecRefPicMarking_s::memory_management_control_operation, DecRefPicMarking_s::Next, u_1(), and ue_v().
Referenced by interpret_dec_ref_pic_marking_repetition_info(), and RestOfSliceHeader().
| void decode_poc | ( | ImageParameters * | img | ) |
To calculate the poc values based upon JVT-F100d2 POC200301: Until Jan 2003, this function will calculate the correct POC values, but the management of POCs in buffered pictures may need more work.
- Returns:
- none
Definition at line 608 of file header.c.
References error().
Referenced by fill_frame_num_gap(), and init_picture().
| int dumppoc | ( | ImageParameters * | img | ) |
| int FirstPartOfSliceHeader | ( | Slice * | currSlice | ) |
read the first part of the header (only the pic_parameter_set_id)
- Returns:
- Length of the first part of the slice header (in bits)
Definition at line 76 of file header.c.
References assignSE2partition, datapartition::bitstream, Slice::dp_mode, Bitstream::frame_bitoffset, img, Slice::partArr, Slice::pic_parameter_set_id, Slice::picture_type, SE_HEADER, Slice::start_mb_nr, u_v(), and ue_v().
Referenced by read_new_slice().
| int picture_order | ( | ImageParameters * | img | ) |
| static void pred_weight_table | ( | Slice * | currSlice | ) | [static] |
read the weighted prediction tables
Definition at line 425 of file header.c.
References assignSE2partition, datapartition::bitstream, Slice::dp_mode, Slice::partArr, SE_HEADER, se_v(), u_1(), and ue_v().
Referenced by RestOfSliceHeader().
| static void ref_pic_list_reordering | ( | Slice * | currSlice | ) | [static] |
read the reference picture reordering information
Definition at line 332 of file header.c.
References Slice::abs_diff_pic_num_minus1_l0, Slice::abs_diff_pic_num_minus1_l1, alloc_ref_pic_list_reordering_buffer(), assignSE2partition, datapartition::bitstream, Slice::dp_mode, img, Slice::long_term_pic_idx_l0, Slice::long_term_pic_idx_l1, Slice::partArr, redundant_slice_ref_idx, Slice::ref_pic_list_reordering_flag_l0, Slice::ref_pic_list_reordering_flag_l1, Slice::reordering_of_pic_nums_idc_l0, Slice::reordering_of_pic_nums_idc_l1, SE_HEADER, u_1(), and ue_v().
Referenced by RestOfSliceHeader().
| int RestOfSliceHeader | ( | Slice * | currSlice | ) |
read the scond part of the header (without the pic_parameter_set_id
- Returns:
- Length of the second part of the Slice header in bits
redundant_pic_cnt is missing here
Definition at line 112 of file header.c.
References assignSE2partition, datapartition::bitstream, CeilLog2(), dec_ref_pic_marking(), Slice::DFAlphaC0Offset, Slice::DFBetaOffset, Slice::DFDisableIdc, Slice::dp_mode, error(), img, params, Slice::partArr, Slice::picture_type, pred_weight_table(), Slice::qp, Slice::qs, ref_pic_list_reordering(), SE_HEADER, se_v(), Slice::slice_qp_delta, Slice::slice_qs_delta, Slice::structure, u_1(), u_v(), and ue_v().
Referenced by read_new_slice().
