LiVES 2.4.6

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jack.h
Go to the documentation of this file.
1 // jack.h
2 // LiVES (lives-exe)
3 // (c) G. Finch 2005 - 2013
4 // Released under the GPL 3 or later
5 // see file ../COPYING for licensing details
6
7 #ifndef HAS_LIVES_JACK_H
8 #define HAS_LIVES_JACK_H
9
10 #ifdef ENABLE_JACK
11
12
13
14
16 // Transport
17
18 #include <jack/jack.h>
19 #include <jack/transport.h>
20
21 boolean lives_jack_init(void);
22 boolean lives_jack_poll(void);
23 void lives_jack_end(void);
24
25 int lives_start_ready_callback(jack_transport_state_t state, jack_position_t *pos, void *arg);
26
27 void jack_pb_start(void);
28 void jack_pb_stop(void);
31 // Audio
33
34 #include "audio.h"
35
36 #define JACK_MAX_OUTPUT_PORTS 10
37 #define JACK_MAX_INPUT_PORTS 10
38
39 #define ERR_PORT_NOT_FOUND 10
40
41
42 typedef jack_nframes_t nframes_t;
43
44
45
46 // let's hope these are well above the standard jack transport states...
47 #define JackTClosed 1024
48 #define JackTReset 1025
49 #define JackTStopped 1026
50
51 typedef struct {
52 int dev_idx;
53 int64_t sample_out_rate;
54 int64_t sample_in_rate;
55 uint64_t num_input_channels;
56 uint64_t num_output_channels;
57 uint64_t bytes_per_channel;
58
59 uint64_t num_calls;
61 jack_port_t *output_port[JACK_MAX_OUTPUT_PORTS];
62 jack_port_t *input_port[JACK_MAX_INPUT_PORTS];
63 jack_client_t *client;
65 char **jack_port_name;
66 unsigned int jack_port_name_count;
67 uint64_t jack_port_flags;
69 lives_audio_loop_t loop;
70
71 jack_transport_state_t state;
72
73 float volume[JACK_MAX_OUTPUT_PORTS];
74
75 boolean in_use;
76 boolean mute;
77
78 volatile aserver_message_t *msgq;
80 off_t seek_pos;
81 off_t seek_end;
82 boolean usigned;
83 boolean reverse_endian;
84
85 lives_whentostop_t *whentostop;
86 volatile lives_cancel_t *cancelled;
87
88 /* variables used for trying to restart the connection to jack */
89 boolean jackd_died;
90 struct timeval last_reconnect_attempt;
91
92 boolean play_when_stopped;
93 uint64_t audio_ticks;
94 uint64_t frames_written;
95
96 int out_chans_available;
97 int in_chans_available;
98
99 boolean is_paused;
100
101 boolean is_output;
102
103 boolean is_silent;
104
105 boolean is_active;
106
107 int playing_file;
108
109 volatile float jack_pulse[1024];
110
111 lives_audio_buf_t **abufs;
112 volatile int read_abuf;
113
114 volatile int astream_fd;
115
116 } jack_driver_t;
117
118
119 #define JACK_MAX_OUTDEVICES 10
120 #define JACK_MAX_INDEVICES 10
121
122
124
125 jack_driver_t *jack_get_driver(int dev_idx, boolean is_output);
126
127 int jack_audio_init(void);
128 int jack_audio_read_init(void);
129
130 int jack_open_device(jack_driver_t *);
131 int jack_open_device_read(jack_driver_t *);
132
133 int jack_driver_activate(jack_driver_t *);
134 int jack_read_driver_activate(jack_driver_t *, boolean autocon);
135
136 void jack_close_device(jack_driver_t *);
137
138 boolean jack_try_reconnect(void);
139
140 void jack_aud_pb_ready(int fileno);
141
142
143 // utils
144 volatile aserver_message_t *jack_get_msgq(jack_driver_t *);
145 uint64_t lives_jack_get_time(jack_driver_t *, boolean absolute);
146 boolean jack_audio_seek_frame(jack_driver_t *, int frame);
147 int64_t jack_audio_seek_bytes(jack_driver_t *, int64_t bytes);
148
149 void jack_get_rec_avals(jack_driver_t *);
150
151 uint64_t jack_transport_get_time(void);
152
153 double lives_jack_get_pos(jack_driver_t *);
154
155
156 #endif
157
158
159 #endif
audio.h
lives_audio_loop_t
lives_audio_loop_t
Definition: audio.h:143
lives_audio_buf_t
Definition: audio.h:77
lives_whentostop_t
lives_whentostop_t
which stream end should cause playback to finish ?
Definition: main.h:369
aserver_message_t
Definition: audio.h:59
lives_cancel_t
lives_cancel_t
cancel reason
Definition: main.h:377