code.delx.au - pulseaudio/blob - src/pulse/ext-device-manager.h

   1 #ifndef foopulseextdevicemanagerhfoo
   2 #define foopulseextdevicemanagerhfoo
   3
   4 /***
   5   This file is part of PulseAudio.
   6
   7   Copyright 2008 Lennart Poettering
   8   Copyright 2009 Colin Guthrie
   9
  10   PulseAudio is free software; you can redistribute it and/or modify
  11   it under the terms of the GNU Lesser General Public License as published
  12   by the Free Software Foundation; either version 2.1 of the License,
  13   or (at your option) any later version.
  14
  15   PulseAudio is distributed in the hope that it will be useful, but
  16   WITHOUT ANY WARRANTY; without even the implied warranty of
  17   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  18   General Public License for more details.
  19
  20   You should have received a copy of the GNU Lesser General Public License
  21   along with PulseAudio; if not, write to the Free Software
  22   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  23   USA.
  24 ***/
  25
  26 #include <pulse/context.h>
  27 #include <pulse/version.h>
  28
  29 /** \file
  30  *
  31  * Routines for controlling module-device-manager
  32  */
  33
  34 PA_C_DECL_BEGIN
  35
  36 typedef struct pa_ext_device_manager_role_priority_info {
  37     const char *role;
  38     uint32_t priority;
  39 } pa_ext_device_manager_role_priority_info;
  40
  41 /** Stores information about one device in the device database that is
  42  * maintained by module-device-manager. \since 0.9.21 */
  43 typedef struct pa_ext_device_manager_info {
  44     const char *name;            /**< Identifier string of the device. A string like "sink:" or similar followed by the name of the device. */
  45     const char *description;     /**< The description of the device when it was last seen, if applicable and saved */
  46     const char *icon;            /**< The icon given to the device */
  47     uint32_t index;              /**< The device index if it is currently available or PA_INVALID_INDEX */
  48     uint32_t n_role_priorities;  /**< How many role priorities do we have? */
  49     pa_ext_device_manager_role_priority_info *role_priorities; /**< An array of role priority structures or NULL */
  50 } pa_ext_device_manager_info;
  51
  52 /** Callback prototype for pa_ext_device_manager_test(). \since 0.9.21 */
  53 typedef void (*pa_ext_device_manager_test_cb_t)(
  54         pa_context *c,
  55         uint32_t version,
  56         void *userdata);
  57
  58 /** Test if this extension module is available in the server. \since 0.9.21 */
  59 pa_operation *pa_ext_device_manager_test(
  60         pa_context *c,
  61         pa_ext_device_manager_test_cb_t cb,
  62         void *userdata);
  63
  64 /** Callback prototype for pa_ext_device_manager_read(). \since 0.9.21 */
  65 typedef void (*pa_ext_device_manager_read_cb_t)(
  66         pa_context *c,
  67         const pa_ext_device_manager_info *info,
  68         int eol,
  69         void *userdata);
  70
  71 /** Read all entries from the device database. \since 0.9.21 */
  72 pa_operation *pa_ext_device_manager_read(
  73         pa_context *c,
  74         pa_ext_device_manager_read_cb_t cb,
  75         void *userdata);
  76
  77 /** Sets the description for a device. \since 0.9.21 */
  78 pa_operation *pa_ext_device_manager_set_device_description(
  79         pa_context *c,
  80         const char* device,
  81         const char* description,
  82         pa_context_success_cb_t cb,
  83         void *userdata);
  84
  85 /** Delete entries from the device database. \since 0.9.21 */
  86 pa_operation *pa_ext_device_manager_delete(
  87         pa_context *c,
  88         const char *const s[],
  89         pa_context_success_cb_t cb,
  90         void *userdata);
  91
  92 /** Enable the role-based device-priority routing mode. \since 0.9.21 */
  93 pa_operation *pa_ext_device_manager_enable_role_device_priority_routing(
  94         pa_context *c,
  95         int enable,
  96         pa_context_success_cb_t cb,
  97         void *userdata);
  98
  99 /** Prefer a given device in the priority list. \since 0.9.21 */
 100 pa_operation *pa_ext_device_manager_reorder_devices_for_role(
 101         pa_context *c,
 102         const char* role,
 103         const char** devices,
 104         pa_context_success_cb_t cb,
 105         void *userdata);
 106
 107 /** Subscribe to changes in the device database. \since 0.9.21 */
 108 pa_operation *pa_ext_device_manager_subscribe(
 109         pa_context *c,
 110         int enable,
 111         pa_context_success_cb_t cb,
 112         void *userdata);
 113
 114 /** Callback prototype for pa_ext_device_manager_set_subscribe_cb(). \since 0.9.21 */
 115 typedef void (*pa_ext_device_manager_subscribe_cb_t)(
 116         pa_context *c,
 117         void *userdata);
 118
 119 /** Set the subscription callback that is called when
 120  * pa_ext_device_manager_subscribe() was called. \since 0.9.21 */
 121 void pa_ext_device_manager_set_subscribe_cb(
 122         pa_context *c,
 123         pa_ext_device_manager_subscribe_cb_t cb,
 124         void *userdata);
 125
 126 PA_C_DECL_END
 127
 128 #endif