rtspv2

const (
	SignalStreamRTPStop = iota
	SignalCodecUpdate
)

const (
	VIDEO = "video"
	AUDIO = "audio"
)

const (
	RTPHeaderSize      = 12
	RTCPSenderReport   = 200
	RTCPReceiverReport = 201
)

const (
	DESCRIBE = "DESCRIBE"
	OPTIONS  = "OPTIONS"
	PLAY     = "PLAY"
	SETUP    = "SETUP"
	TEARDOWN = "TEARDOWN"
)

const (
	// Keep-alive interval in seconds
	KeepAliveInterval = 25
	// Channel buffer sizes
	SignalChannelSize     = 100
	ProxyQueueSize        = 3000
	PacketQueueSize       = 3000
	MaxProxyQueueLoad     = 2000
	MaxPacketQueueLoad    = 2000
	MaxKeepAliveRespSize  = 768
	MinRTPPacketSize      = 12
	MaxRTPPacketSize      = 65535
	DefaultAudioTimeScale = 8000
)

const (
	// VideoTimeBase 视频 RTP 时钟频率 90kHz
	VideoTimeBase = 90000
	// TimeDelay 默认 CompositionTime 延迟（毫秒）
	TimeDelay = 1
	// MaxSeqNumHalf 序列号回绕检测阈值（16位序列号的一半）
	MaxSeqNumHalf = 0x8000
	// MaxTimestampHalf 时间戳回绕检测阈值（32位时间戳的一半）
	MaxTimestampHalf = 0x80000000
)

const (
	StartCodePS        = 0x000001ba
	StartCodeSYS       = 0x000001bb
	StartCodeMAP       = 0x000001bc
	StartCodeVideo     = 0x000001e0
	StartCodeAudio     = 0x000001c0
	MEPGProgramEndCode = 0x000001b9
)

const (
	StreamIDVideo = 0xe0
	StreamIDAudio = 0xc0
)

const (
	UDPTransfer        int = 0
	TCPTransferActive  int = 1
	TCPTransferPassive int = 2
	LocalCache         int = 3
)

const (
	StreamTypeH264 = 0x1b
	StreamTypeH265 = 0x24
	StreamTypeAAC  = 0x90
)