libtgvoip/controller/Constants.h

#pragma once

// Common macros
#define IS_MOBILE_NETWORK(x) (x == NET_TYPE_GPRS || x == NET_TYPE_EDGE || x == NET_TYPE_3G || x == NET_TYPE_HSPA || x == NET_TYPE_LTE || x == NET_TYPE_OTHER_MOBILE)
#define CHECK_ENDPOINT_PROTOCOL(endpointType, packetProtocol) ((endpointType != Endpoint::Type::TCP_RELAY && packetProtocol == NetworkProtocol::UDP) || (endpointType == Endpoint::Type::TCP_RELAY && packetProtocol == NetworkProtocol::TCP))
#define PAD4(x) (4 - (x + (x <= 253 ? 1 : 0)) % 4)

inline int pad4(int x)
{
    int r = PAD4(x);
    if (r == 4)
        return 0;
    return r;
}
// Max recent packets
#define MAX_RECENT_PACKETS 128

// Packet types (all deprecated)
#define PKT_INIT 1
#define PKT_INIT_ACK 2
#define PKT_STREAM_DATA 4
#define PKT_PING 6
#define PKT_PONG 7
#define PKT_NOP 14

#define PKT_STREAM_EC 17 // Deprecated

#define PKT_STREAM_DATA_X2 8 // Deprecated
#define PKT_STREAM_DATA_X3 9 // Deprecated

#define PKT_STREAM_STATE 3     // Deprecated, use extra
#define PKT_LAN_ENDPOINT 10    // Deprecated, use extra
#define PKT_NETWORK_CHANGED 11 // Deprecated, use extra

// #define PKT_UPDATE_STREAMS 5 // Not used anymore
// #define PKT_SWITCH_PREF_RELAY 12 // Not used anymore
// #define PKT_SWITCH_TO_P2P 13 // Not used anymore
// #define PKT_GROUP_CALL_KEY 15		// replaced with 'extra' in 2.1 (protocol v6)
// #define PKT_REQUEST_GROUP 16

// Stream data flags
#define STREAM_DATA_FLAG_LEN16 0x40
#define STREAM_DATA_FLAG_HAS_MORE_FLAGS 0x80 // Not used

// Since the data can't be larger than the MTU anyway,
// 5 top bits of data length are allocated for these flags
#define STREAM_DATA_XFLAG_KEYFRAME (1 << 15)
#define STREAM_DATA_XFLAG_FRAGMENTED (1 << 14)
#define STREAM_DATA_XFLAG_EXTRA_FEC (1 << 13)

// Extra packet flags
#define XPFLAG_HAS_EXTRA 1   // Signaling
#define XPFLAG_HAS_RECV_TS 2 // Video calls

// Old codec identifiers
#define CODEC_OPUS_OLD 1

// MTU
#define DEFAULT_MTU 1100

// Video flags
#define INIT_VIDEO_RES_NONE 0
#define INIT_VIDEO_RES_240 1
#define INIT_VIDEO_RES_360 2
#define INIT_VIDEO_RES_480 3
#define INIT_VIDEO_RES_720 4
#define INIT_VIDEO_RES_1080 5
#define INIT_VIDEO_RES_1440 6
#define INIT_VIDEO_RES_4K 7

#define VIDEO_FRAME_FLAG_KEYFRAME 1

#define VIDEO_ROTATION_MASK 3
#define VIDEO_ROTATION_0 0
#define VIDEO_ROTATION_90 1
#define VIDEO_ROTATION_180 2
#define VIDEO_ROTATION_270 3

#define FEC_SCHEME_XOR 1
#define FEC_SCHEME_CM256 2

// TLIDs of reflector signaling
#define TLID_DECRYPTED_AUDIO_BLOCK 0xDBF948C1
#define TLID_SIMPLE_AUDIO_BLOCK 0xCC0D0E76
#define TLID_UDP_REFLECTOR_PEER_INFO 0x27D9371C
#define TLID_UDP_REFLECTOR_PEER_INFO_IPV6 0x83fc73b1
#define TLID_UDP_REFLECTOR_SELF_INFO 0xc01572c7
#define TLID_UDP_REFLECTOR_REQUEST_PACKETS_INFO 0x1a06fc96
#define TLID_UDP_REFLECTOR_LAST_PACKETS_INFO 0x0e107305
#define TLID_VECTOR 0x1cb5c415

// Rating flags
#define NEED_RATE_FLAG_SHITTY_INTERNET_MODE 1
#define NEED_RATE_FLAG_UDP_NA 2
#define NEED_RATE_FLAG_UDP_BAD 4
#define NEED_RATE_FLAG_RECONNECTING 8

// Crypto stuff
#define SHA1_LENGTH 20
#define SHA256_LENGTH 32

#ifdef _MSC_VER
#define MSC_STACK_FALLBACK(a, b) (b)
#else
#define MSC_STACK_FALLBACK(a, b) (a)
#endif

// Legacy flags
/*flags:# voice_call_id:flags.2?int128 in_seq_no:flags.4?int out_seq_no:flags.4?int
	 * recent_received_mask:flags.5?int proto:flags.3?int extra:flags.1?string raw_data:flags.0?string*/
#define LEGACY_PFLAG_HAS_DATA 1
#define LEGACY_PFLAG_HAS_EXTRA 2
#define LEGACY_PFLAG_HAS_CALL_ID 4
#define LEGACY_PFLAG_HAS_PROTO 8
#define LEGACY_PFLAG_HAS_SEQ 16
#define LEGACY_PFLAG_HAS_RECENT_RECV 32
#define LEGACY_PFLAG_HAS_SENDER_TAG_HASH 64