7 This file is part of PulseAudio.
9 Copyright 2004-2006 Lennart Poettering
11 PulseAudio is free software; you can redistribute it and/or modify
12 it under the terms of the GNU Lesser General Public License as
13 published by the Free Software Foundation; either version 2 of the
14 License, or (at your option) any later version.
16 PulseAudio is distributed in the hope that it will be useful, but
17 WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 General Public License for more details.
21 You should have received a copy of the GNU Lesser General Public
22 License along with PulseAudio; if not, write to the Free Software
23 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
27 #include <pulse/mainloop-api.h>
28 #include <pulse/sample.h>
29 #include <pulse/channelmap.h>
30 #include <pulse/cdecl.h>
33 * An abstract interface for Zeroconf browsing of PulseAudio servers */
37 /** An opaque Zeroconf service browser object */
38 typedef struct pa_browser pa_browser;
40 /** Opcodes for pa_browser_cb_t callbacks */
41 typedef enum pa_browse_opcode {
42 PA_BROWSE_NEW_SERVER = 0, /**< New server found */
43 PA_BROWSE_NEW_SINK, /**< New sink found */
44 PA_BROWSE_NEW_SOURCE, /**< New source found */
45 PA_BROWSE_REMOVE_SERVER, /**< Server disappeared */
46 PA_BROWSE_REMOVE_SINK, /**< Sink disappeared */
47 PA_BROWSE_REMOVE_SOURCE /**< Source disappeared */
50 typedef enum pa_browse_flags {
51 PA_BROWSE_FOR_SERVERS = 1, /**< Browse for servers */
52 PA_BROWSE_FOR_SINKS = 2, /**< Browse for sinks */
53 PA_BROWSE_FOR_SOURCES = 4 /** Browse for sources */
56 /** Create a new browser object on the specified main loop */
57 pa_browser *pa_browser_new(pa_mainloop_api *mainloop);
59 /** Same pa_browser_new, but pass additional flags parameter. */
60 pa_browser *pa_browser_new_full(pa_mainloop_api *mainloop, pa_browse_flags_t flags, const char **error_string);
62 /** Increase reference counter of the specified browser object */
63 pa_browser *pa_browser_ref(pa_browser *z);
65 /** Decrease reference counter of the specified browser object */
66 void pa_browser_unref(pa_browser *z);
68 /** Information about a sink/source/server found with Zeroconf */
69 typedef struct pa_browse_info {
70 const char *name; /**< Unique service name; always available */
72 const char *server; /**< Server name; always available */
73 const char *server_version; /**< Server version string; optional */
74 const char *user_name; /**< User name of the server process; optional */
75 const char *fqdn; /* Server version; optional */
76 const uint32_t *cookie; /* Server cookie; optional */
78 const char *device; /* Device name; always available when this information is of a sink/source */
79 const char *description; /* Device description; optional */
80 const pa_sample_spec *sample_spec; /* Sample specification of the device; optional */
83 /** Callback prototype */
84 typedef void (*pa_browse_cb_t)(pa_browser *z, pa_browse_opcode_t c, const pa_browse_info *i, void *userdata);
86 /** Set the callback pointer for the browser object */
87 void pa_browser_set_callback(pa_browser *z, pa_browse_cb_t cb, void *userdata);
89 /** Callback prototype for errors */
90 typedef void (*pa_browser_error_cb_t)(pa_browser *z, const char *error_string, void *userdata);
92 /** Set a callback function that is called whenever the browser object
93 * becomes invalid due to an error. After this function has been
94 * called the browser object has become invalid and should be
96 void pa_browser_set_error_callback(pa_browser *z, pa_browser_error_cb_t, void *userdata);