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#include <sys/socket.h>
#include "midimonster.h"
int init();
static int rtpmidi_configure(char* option, char* value);
static int rtpmidi_configure_instance(instance* instance, char* option, char* value);
static instance* rtpmidi_instance();
static channel* rtpmidi_channel(instance* instance, char* spec, uint8_t flags);
static int rtpmidi_set(instance* inst, size_t num, channel** c, channel_value* v);
static int rtpmidi_handle(size_t num, managed_fd* fds);
static int rtpmidi_start();
static int rtpmidi_shutdown();
#define RTPMIDI_DEFAULT_PORTBASE "9001"
#define RTPMIDI_RECV_BUF 4096
#define RTPMIDI_MDNS_PORT "5353"
#define RTPMIDI_HEADER_MAGIC htobe16(0x80E1)
enum /*_rtpmidi_channel_type*/ {
none = 0,
note = 0x90,
cc = 0xB0,
pressure = 0xA0,
aftertouch = 0xD0,
pitchbend = 0xE0
};
typedef enum /*_rtpmidi_instance_mode*/ {
unconfigured = 0,
direct,
apple
} rtpmidi_instance_mode;
typedef union {
struct {
uint8_t pad[5];
uint8_t type;
uint8_t channel;
uint8_t control;
} fields;
uint64_t label;
} rtpmidi_channel_ident;
typedef struct /*_rtpmidi_peer*/ {
struct sockaddr_storage dest;
socklen_t dest_len;
uint32_t ssrc;
} rtpmidi_peer;
typedef struct /*_rtmidi_instance_data*/ {
rtpmidi_instance_mode mode;
int fd;
int control_fd;
size_t peers;
rtpmidi_peer* peer;
uint32_t ssrc;
//apple-midi config
char* session_name;
char* invite_peers;
char* invite_accept;
//direct mode config
uint8_t learn_peers;
} rtpmidi_instance_data;
#pragma pack(push, 1)
typedef struct /*_apple_session_command*/ {
uint16_t res1;
uint8_t command[2];
uint32_t version;
uint32_t token;
uint32_t ssrc;
//char* name
} apple_command;
typedef struct /*_apple_session_sync*/ {
uint16_t res1;
uint8_t command[2];
uint32_t ssrc;
uint8_t count;
uint8_t res2[3];
uint64_t timestamp[3];
} apple_sync;
typedef struct /*_apple_session_feedback*/ {
uint16_t res1;
uint8_t command[2];
uint32_t ssrc;
uint32_t sequence;
} apple_feedback;
typedef struct /*_rtp_midi_header*/ {
uint16_t vpxccmpt; //this is really just an amalgamated constant value
uint16_t sequence;
uint32_t timestamp;
uint32_t ssrc;
} rtpmidi_header;
typedef struct /*_rtp_midi_command*/ {
uint8_t flags;
uint8_t additional_length;
} rtpmidi_command;
#pragma pack(pop)
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