h264.h

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#pragma once
 
#include <stdbool.h>
#include <stdint.h>
 
#include <slice99.h>
 
#include <compy/priv/compiler_attrs.h>
 
#define COMPY_H264_NAL_HEADER_SIZE sizeof(uint8_t)
 
#define COMPY_H264_FU_HEADER_SIZE                                              \
    (/* fu-identifier */ sizeof(uint8_t) + /* fu-header */ sizeof(uint8_t))
 
typedef struct {
    bool forbidden_zero_bit;
 
    uint8_t ref_idc;
 
    uint8_t unit_type;
} Compy_H264NalHeader;
 
typedef struct {
    Compy_H264NalHeader header;
 
    U8Slice99 payload;
} Compy_H264NalUnit;
 
Compy_H264NalHeader
Compy_H264NalHeader_parse(uint8_t byte_header) COMPY_PRIV_MUST_USE;
 
uint8_t
Compy_H264NalHeader_serialize(Compy_H264NalHeader self) COMPY_PRIV_MUST_USE;
 
bool Compy_H264NalHeader_is_vps(Compy_H264NalHeader self) COMPY_PRIV_MUST_USE;
 
bool Compy_H264NalHeader_is_sps(Compy_H264NalHeader self) COMPY_PRIV_MUST_USE;
 
bool Compy_H264NalHeader_is_pps(Compy_H264NalHeader self) COMPY_PRIV_MUST_USE;
 
bool Compy_H264NalHeader_is_coded_slice_idr(Compy_H264NalHeader self)
    COMPY_PRIV_MUST_USE;
 
bool Compy_H264NalHeader_is_coded_slice_non_idr(Compy_H264NalHeader self)
    COMPY_PRIV_MUST_USE;
 
void Compy_H264NalHeader_write_fu_header(
    Compy_H264NalHeader self, uint8_t buffer[restrict], bool is_first_fragment,
    bool is_last_fragment);
 
#define COMPY_H264_NAL_UNIT_UNSPECIFIED 0
 
#define COMPY_H264_NAL_UNIT_CODED_SLICE_NON_IDR 1
 
#define COMPY_H264_NAL_UNIT_CODED_SLICE_DATA_PARTITION_A 2
 
#define COMPY_H264_NAL_UNIT_CODED_SLICE_DATA_PARTITION_B 3
 
#define COMPY_H264_NAL_UNIT_CODED_SLICE_DATA_PARTITION_C 4
 
#define COMPY_H264_NAL_UNIT_CODED_SLICE_IDR 5
 
#define COMPY_H264_NAL_UNIT_SEI 6
 
#define COMPY_H264_NAL_UNIT_SPS 7
 
#define COMPY_H264_NAL_UNIT_PPS 8
 
#define COMPY_H264_NAL_UNIT_AUD 9
 
#define COMPY_H264_NAL_UNIT_END_OF_SEQUENCE 10
 
#define COMPY_H264_NAL_UNIT_END_OF_STREAM 11
 
#define COMPY_H264_NAL_UNIT_FILLER 12
 
#define COMPY_H264_NAL_UNIT_SPS_EXT 13
 
#define COMPY_H264_NAL_UNIT_PREFIX 14
 
#define COMPY_H264_NAL_UNIT_SUBSET_SPS 15
 
#define COMPY_H264_NAL_UNIT_DPS 16
 
#define COMPY_H264_NAL_UNIT_CODED_SLICE_AUX 19
 
#define COMPY_H264_NAL_UNIT_CODED_SLICE_EXT 20
 
#define COMPY_H264_NAL_UNIT_CODED_SLICE_EXT_DEPTH_VIEW 21