av1.h

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#pragma once
 
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
 
#include <smolrtsp/priv/compiler_attrs.h>
 
#define SMOLRTSP_AV1_AGGREGATION_HEADER_SIZE 1
 
#define SMOLRTSP_AV1_LEB128_MAX_SIZE 10
 
#define SMOLRTSP_AV1_OBU_RESERVED_0             0
#define SMOLRTSP_AV1_OBU_SEQUENCE_HEADER        1
#define SMOLRTSP_AV1_OBU_TEMPORAL_DELIMITER     2
#define SMOLRTSP_AV1_OBU_FRAME_HEADER           3
#define SMOLRTSP_AV1_OBU_TILE_GROUP             4
#define SMOLRTSP_AV1_OBU_METADATA               5
#define SMOLRTSP_AV1_OBU_FRAME                  6
#define SMOLRTSP_AV1_OBU_REDUNDANT_FRAME_HEADER 7
#define SMOLRTSP_AV1_OBU_TILE_LIST              8
#define SMOLRTSP_AV1_OBU_PADDING                15
 
typedef struct {
    bool z;
    bool y;
    uint8_t w;
    bool n;
} SmolRTSP_Av1AggregationHeader;
 
void SmolRTSP_Av1AggregationHeader_serialize(
    SmolRTSP_Av1AggregationHeader self, uint8_t buffer[restrict]);
 
size_t smolrtsp_av1_leb128_encode(uint64_t value, uint8_t buffer[restrict])
    SMOLRTSP_PRIV_MUST_USE;
 
size_t smolrtsp_av1_leb128_decode(
    const uint8_t *buffer, size_t buffer_len,
    uint64_t *value) SMOLRTSP_PRIV_MUST_USE;
 
size_t smolrtsp_av1_leb128_size(uint64_t value) SMOLRTSP_PRIV_MUST_USE;
 
static inline uint8_t smolrtsp_av1_obu_type(uint8_t header_byte) {
    return (header_byte >> 3) & 0x0Fu;
}
 
static inline bool smolrtsp_av1_obu_has_extension(uint8_t header_byte) {
    return ((header_byte >> 2) & 0x01u) != 0;
}
 
static inline bool smolrtsp_av1_obu_has_size_field(uint8_t header_byte) {
    return ((header_byte >> 1) & 0x01u) != 0;
}
 
static inline uint8_t smolrtsp_av1_obu_clear_size_field(uint8_t header_byte) {
    return (uint8_t)(header_byte & ~0x02u);
}