1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
|
#ifndef foointernalhfoo
#define foointernalhfoo
/***
This file is part of PulseAudio.
Copyright 2004-2006 Lennart Poettering
Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
PulseAudio is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
PulseAudio is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with PulseAudio; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.
***/
#include <pulse/mainloop-api.h>
#include <pulse/context.h>
#include <pulse/stream.h>
#include <pulse/operation.h>
#include <pulse/subscribe.h>
#include <pulse/ext-stream-restore.h>
#include <pulsecore/socket-client.h>
#include <pulsecore/pstream.h>
#include <pulsecore/pdispatch.h>
#include <pulsecore/dynarray.h>
#include <pulsecore/llist.h>
#include <pulsecore/native-common.h>
#include <pulsecore/strlist.h>
#include <pulsecore/mcalign.h>
#include <pulsecore/memblockq.h>
#include <pulsecore/hashmap.h>
#include <pulsecore/refcnt.h>
#include <pulsecore/time-smoother.h>
#include "client-conf.h"
#define DEFAULT_TIMEOUT (30)
struct pa_context {
PA_REFCNT_DECLARE;
pa_proplist *proplist;
pa_mainloop_api* mainloop;
pa_socket_client *client;
pa_pstream *pstream;
pa_pdispatch *pdispatch;
pa_dynarray *record_streams, *playback_streams;
PA_LLIST_HEAD(pa_stream, streams);
PA_LLIST_HEAD(pa_operation, operations);
uint32_t version;
uint32_t ctag;
uint32_t csyncid;
int error;
pa_context_state_t state;
pa_context_notify_cb_t state_callback;
void *state_userdata;
pa_context_subscribe_cb_t subscribe_callback;
void *subscribe_userdata;
pa_mempool *mempool;
pa_bool_t is_local:1;
pa_bool_t do_shm:1;
pa_bool_t do_autospawn:1;
pa_spawn_api spawn_api;
pa_strlist *server_list;
char *server;
pa_client_conf *conf;
uint32_t client_index;
/* Extension specific data */
struct {
pa_ext_stream_restore_subscribe_cb_t callback;
void *userdata;
} ext_stream_restore;
};
#define PA_MAX_WRITE_INDEX_CORRECTIONS 32
typedef struct pa_index_correction {
uint32_t tag;
int64_t value;
pa_bool_t valid:1;
pa_bool_t absolute:1;
pa_bool_t corrupt:1;
} pa_index_correction;
struct pa_stream {
PA_REFCNT_DECLARE;
PA_LLIST_FIELDS(pa_stream);
pa_context *context;
pa_mainloop_api *mainloop;
uint32_t direct_on_input;
pa_stream_direction_t direction;
pa_stream_state_t state;
pa_stream_flags_t flags;
pa_sample_spec sample_spec;
pa_channel_map channel_map;
pa_proplist *proplist;
pa_bool_t channel_valid:1;
pa_bool_t suspended:1;
pa_bool_t corked:1;
pa_bool_t timing_info_valid:1;
pa_bool_t auto_timing_update_requested:1;
uint32_t channel;
uint32_t syncid;
uint32_t stream_index;
uint32_t requested_bytes;
pa_buffer_attr buffer_attr;
uint32_t device_index;
char *device_name;
pa_memchunk peek_memchunk;
void *peek_data;
pa_memblockq *record_memblockq;
/* Store latest latency info */
pa_timing_info timing_info;
/* Use to make sure that time advances monotonically */
pa_usec_t previous_time;
/* time updates with tags older than these are invalid */
uint32_t write_index_not_before;
uint32_t read_index_not_before;
/* Data about individual timing update correctoins */
pa_index_correction write_index_corrections[PA_MAX_WRITE_INDEX_CORRECTIONS];
int current_write_index_correction;
/* Latency interpolation stuff */
pa_time_event *auto_timing_update_event;
pa_smoother *smoother;
/* Callbacks */
pa_stream_notify_cb_t state_callback;
void *state_userdata;
pa_stream_request_cb_t read_callback;
void *read_userdata;
pa_stream_request_cb_t write_callback;
void *write_userdata;
pa_stream_notify_cb_t overflow_callback;
void *overflow_userdata;
pa_stream_notify_cb_t underflow_callback;
void *underflow_userdata;
pa_stream_notify_cb_t latency_update_callback;
void *latency_update_userdata;
pa_stream_notify_cb_t moved_callback;
void *moved_userdata;
pa_stream_notify_cb_t suspended_callback;
void *suspended_userdata;
pa_stream_notify_cb_t started_callback;
void *started_userdata;
};
typedef void (*pa_operation_cb_t)(void);
struct pa_operation {
PA_REFCNT_DECLARE;
pa_context *context;
pa_stream *stream;
PA_LLIST_FIELDS(pa_operation);
pa_operation_state_t state;
void *userdata;
pa_operation_cb_t callback;
void *private; /* some operations might need this */
};
void pa_command_request(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
void pa_command_stream_killed(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
void pa_command_subscribe_event(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
void pa_command_overflow_or_underflow(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
void pa_command_stream_suspended(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
void pa_command_stream_moved(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
void pa_command_stream_started(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
pa_operation *pa_operation_new(pa_context *c, pa_stream *s, pa_operation_cb_t callback, void *userdata);
void pa_operation_done(pa_operation *o);
void pa_create_stream_callback(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
void pa_stream_disconnect_callback(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
void pa_context_simple_ack_callback(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
void pa_stream_simple_ack_callback(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
void pa_context_fail(pa_context *c, int error);
int pa_context_set_error(pa_context *c, int error);
void pa_context_set_state(pa_context *c, pa_context_state_t st);
int pa_context_handle_error(pa_context *c, uint32_t command, pa_tagstruct *t, pa_bool_t fail);
pa_operation* pa_context_send_simple_command(pa_context *c, uint32_t command, void (*internal_callback)(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata), void (*cb)(void), void *userdata);
void pa_stream_set_state(pa_stream *s, pa_stream_state_t st);
pa_tagstruct *pa_tagstruct_command(pa_context *c, uint32_t command, uint32_t *tag);
#define PA_CHECK_VALIDITY(context, expression, error) \
do { \
if (!(expression)) \
return -pa_context_set_error((context), (error)); \
} while(FALSE)
#define PA_CHECK_VALIDITY_RETURN_ANY(context, expression, error, value) \
do { \
if (!(expression)) { \
pa_context_set_error((context), (error)); \
return value; \
} \
} while(FALSE)
#define PA_CHECK_VALIDITY_RETURN_NULL(context, expression, error) \
PA_CHECK_VALIDITY_RETURN_ANY(context, expression, error, NULL)
#define PA_FAIL(context, error) \
do { \
return -pa_context_set_error((context), (error)); \
} while(FALSE)
#define PA_FAIL_RETURN_ANY(context, error, value) \
do { \
pa_context_set_error((context), (error)); \
return value; \
} while(FALSE)
#define PA_FAIL_RETURN_NULL(context, error) \
PA_FAIL_RETURN_ANY(context, error, NULL)
void pa_ext_stream_restore_command(pa_context *c, uint32_t tag, pa_tagstruct *t);
#endif
|
