packetFormats.hpp

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#ifndef RTCTK_STANDALONETOOLS_RAWRECORDER_PACKETFORMATS_HPP
#define RTCTK_STANDALONETOOLS_RAWRECORDER_PACKETFORMATS_HPP
 
 
#include <boost/endian/arithmetic.hpp>
 
struct MudpiHeader {
    boost::endian::big_int32_t  topic_id;
 
    boost::endian::big_uint16_t component_id;
 
    boost::endian::big_uint16_t application_tag;
 
    boost::endian::big_uint16_t reserved1;
 
    boost::endian::big_uint16_t version;
 
    boost::endian::big_uint32_t sample_id;
 
    boost::endian::big_float64_buf_t timestamp;
 
    boost::endian::big_uint16_t frame_id;
 
    boost::endian::big_uint16_t frame_count;
 
    boost::endian::big_uint16_t payload_size;
 
    boost::endian::big_uint16_t reserved2;
 
};
 
enum RtmsFrameInfo : uint8_t {
    PACKET_MASK = 0b1110'0000,
 
    RTMS_FRAME_INFO_IS_LITTLE_ENDIAN = 1 << 3,
 
    RTMS_FRAME_INFO_IS_SIM_SOURCE = 1 << 4,
 
    RTMS_FRAME_INFO_RTMS_PACKET_TYPE_MASK = 0b1110'0000,
    RTMS_FRAME_INFO_RTMS_PAYLOAD_PACKET = 0,
    RTMS_FRAME_INFO_RTMS_TRAILER_PACKET = 1 << 5,
    RTMS_FRAME_INFO_RTMS_LEADER_PACKET = 1 << 7,
};
 
struct RtmsCommonHeader {
    RtmsFrameInfo frame_info;
 
    boost::endian::big_uint8_t extended_info_size;
 
    boost::endian::big_uint16_t protocol_version;
 
    boost::endian::big_uint32_t status;
 
};
 
struct RtmsLeaderHeader {
    RtmsCommonHeader common;
};
 
 
struct RtmsPayloadHeader {
    RtmsCommonHeader common;
    boost::endian::big_uint16_t payload_size;
    boost::endian::big_uint8_t leading_padding_size;
    boost::endian::big_uint8_t trailling_padding_size;
    boost::endian::big_uint32_t payload_tag;
};
 
struct RtmsTrailerHeader {
    RtmsCommonHeader common;
};
 
union RtmsHeader {
    RtmsLeaderHeader leader;
    RtmsPayloadHeader payload;
    RtmsTrailerHeader trailer;
    RtmsCommonHeader common;
};
 
// ensure right struct sizes
static_assert(sizeof(MudpiHeader) == 32, "Invalid MudpiHeader struct size");
static_assert(sizeof(RtmsFrameInfo) == 1, "Invalid RtmsFrameInfo struct size");
static_assert(sizeof(RtmsCommonHeader) == 8, "Invalid RtmsCommonHeader struct size");
static_assert(sizeof(RtmsLeaderHeader) == 8, "Invalid RtmsLeaderHeader struct size");
static_assert(sizeof(RtmsPayloadHeader) == 16, "Invalid RtmsPayloadHeader struct size");
static_assert(sizeof(RtmsTrailerHeader) == 8, "Invalid RtmsTrailerHeader struct size");
 
 
#endif //RTCTK_STANDALONETOOLS_RAWRECORDER_PACKETFORMATS_HPP