00001
00002
00003
00004
00005
00006
00007
00008
00009
00010
00011
00012
00013
00014
00015
00016
00017
00018
00019
00020
00021
00022
00023
00024
00025
00026
00027 #ifndef __JACK_NET_PACKET_H__
00028 #define __JACK_NET_PACKET_H__
00029
00030 #ifdef __cplusplus
00031 extern "C"
00032 {
00033 #endif
00034
00035 #include <jack/jack.h>
00036 #include <jack/types.h>
00037 #include <jack/jslist.h>
00038 #include <jack/midiport.h>
00039
00040
00041
00042 #define CELT_MODE 1000 // Magic bitdepth value that indicates CELT compression
00043 #define MASTER_FREEWHEELS 0x80000000
00044
00045 typedef struct _jacknet_packet_header jacknet_packet_header;
00046
00047 struct _jacknet_packet_header {
00048
00049 jack_nframes_t capture_channels_audio;
00050 jack_nframes_t playback_channels_audio;
00051 jack_nframes_t capture_channels_midi;
00052 jack_nframes_t playback_channels_midi;
00053 jack_nframes_t period_size;
00054 jack_nframes_t sample_rate;
00055
00056
00057 jack_nframes_t sync_state;
00058 jack_nframes_t transport_frame;
00059 jack_nframes_t transport_state;
00060
00061
00062 jack_nframes_t framecnt;
00063 jack_nframes_t latency;
00064
00065 jack_nframes_t reply_port;
00066 jack_nframes_t mtu;
00067 jack_nframes_t fragment_nr;
00068 };
00069
00070 typedef union _int_float int_float_t;
00071
00072 union _int_float {
00073 uint32_t i;
00074 float f;
00075 };
00076
00077
00078 typedef struct _cache_packet cache_packet;
00079
00080 struct _cache_packet {
00081 int valid;
00082 int num_fragments;
00083 int packet_size;
00084 int mtu;
00085 jack_time_t recv_timestamp;
00086 jack_nframes_t framecnt;
00087 char * fragment_array;
00088 char * packet_buf;
00089 };
00090
00091 typedef struct _packet_cache packet_cache;
00092
00093 struct _packet_cache {
00094 int size;
00095 cache_packet *packets;
00096 int mtu;
00097 struct sockaddr_in master_address;
00098 int master_address_valid;
00099 jack_nframes_t last_framecnt_retreived;
00100 int last_framecnt_retreived_valid;
00101 };
00102
00103
00104
00105 packet_cache *packet_cache_new(int num_packets, int pkt_size, int mtu);
00106 void packet_cache_free(packet_cache *pkt_cache);
00107
00108 cache_packet *packet_cache_get_packet(packet_cache *pkt_cache, jack_nframes_t framecnt);
00109 cache_packet *packet_cache_get_oldest_packet(packet_cache *pkt_cache);
00110 cache_packet *packet_cache_get_free_packet(packet_cache *pkt_cache);
00111
00112 void cache_packet_reset(cache_packet *pack);
00113 void cache_packet_set_framecnt(cache_packet *pack, jack_nframes_t framecnt);
00114 void cache_packet_add_fragment(cache_packet *pack, char *packet_buf, int rcv_len);
00115 int cache_packet_is_complete(cache_packet *pack);
00116
00117 void packet_cache_drain_socket( packet_cache *pcache, int sockfd );
00118 void packet_cache_reset_master_address( packet_cache *pcache );
00119 float packet_cache_get_fill( packet_cache *pcache, jack_nframes_t expected_framecnt );
00120 int packet_cache_retreive_packet_pointer( packet_cache *pcache, jack_nframes_t framecnt, char **packet_buf, int pkt_size, jack_time_t *timestamp );
00121 int packet_cache_release_packet( packet_cache *pcache, jack_nframes_t framecnt );
00122 int packet_cache_get_next_available_framecnt( packet_cache *pcache, jack_nframes_t expected_framecnt, jack_nframes_t *framecnt );
00123 int packet_cache_get_highest_available_framecnt( packet_cache *pcache, jack_nframes_t *framecnt );
00124 int packet_cache_find_latency( packet_cache *pcache, jack_nframes_t expected_framecnt, jack_nframes_t *framecnt );
00125
00126
00127
00128 int netjack_poll_deadline (int sockfd, jack_time_t deadline);
00129 void netjack_sendto(int sockfd, char *packet_buf, int pkt_size, int flags, struct sockaddr *addr, int addr_size, int mtu);
00130 int get_sample_size(int bitdepth);
00131 void packet_header_hton(jacknet_packet_header *pkthdr);
00132 void packet_header_ntoh(jacknet_packet_header *pkthdr);
00133 void render_payload_to_jack_ports(int bitdepth, void *packet_payload, jack_nframes_t net_period_down, JSList *capture_ports, JSList *capture_srcs, jack_nframes_t nframes, int dont_htonl_floats );
00134 void render_jack_ports_to_payload(int bitdepth, JSList *playback_ports, JSList *playback_srcs, jack_nframes_t nframes, void *packet_payload, jack_nframes_t net_period_up, int dont_htonl_floats );
00135
00136
00137
00138 int netjack_poll(int sockfd, int timeout);
00139
00140 void decode_midi_buffer (uint32_t *buffer_uint32, unsigned int buffer_size_uint32, jack_default_audio_sample_t* buf);
00141 void encode_midi_buffer (uint32_t *buffer_uint32, unsigned int buffer_size_uint32, jack_default_audio_sample_t* buf);
00142
00143 #ifdef __cplusplus
00144 }
00145 #endif
00146 #endif
00147