code.delx.au - pulseaudio/blob - src/modules/module-role-cork.c

   1 /***
   2   This file is part of PulseAudio.
   3
   4   Copyright 2009 Lennart Poettering
   5
   6   PulseAudio is free software; you can redistribute it and/or modify
   7   it under the terms of the GNU Lesser General Public License as published
   8   by the Free Software Foundation; either version 2.1 of the License,
   9   or (at your option) any later version.
  10
  11   PulseAudio is distributed in the hope that it will be useful, but
  12   WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14   General Public License for more details.
  15
  16   You should have received a copy of the GNU Lesser General Public License
  17   along with PulseAudio; if not, write to the Free Software
  18   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  19   USA.
  20 ***/
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <pulse/xmalloc.h>
  27
  28 #include <pulsecore/macro.h>
  29 #include <pulsecore/hashmap.h>
  30 #include <pulsecore/hook-list.h>
  31 #include <pulsecore/core.h>
  32 #include <pulsecore/core-util.h>
  33 #include <pulsecore/sink-input.h>
  34 #include <pulsecore/modargs.h>
  35
  36 #include "module-role-cork-symdef.h"
  37
  38 PA_MODULE_AUTHOR("Lennart Poettering");
  39 PA_MODULE_DESCRIPTION("Mute & cork streams with certain roles while others exist");
  40 PA_MODULE_VERSION(PACKAGE_VERSION);
  41 PA_MODULE_LOAD_ONCE(true);
  42 PA_MODULE_USAGE(
  43         "trigger_roles=<Comma separated list of roles which will trigger a cork> "
  44         "cork_roles=<Comma separated list of roles which will be corked> "
  45         "global=<Should we operate globally or only inside the same device?>");
  46
  47 static const char* const valid_modargs[] = {
  48     "trigger_roles",
  49     "cork_roles",
  50     "global",
  51     NULL
  52 };
  53
  54 struct userdata {
  55     pa_core *core;
  56     pa_hashmap *cork_state;
  57     pa_idxset *trigger_roles;
  58     pa_idxset *cork_roles;
  59     bool global:1;
  60     pa_hook_slot
  61         *sink_input_put_slot,
  62         *sink_input_unlink_slot,
  63         *sink_input_move_start_slot,
  64         *sink_input_move_finish_slot;
  65 };
  66
  67 static bool shall_cork(struct userdata *u, pa_sink *s, pa_sink_input *ignore) {
  68     pa_sink_input *j;
  69     uint32_t idx, role_idx;
  70     const char *trigger_role;
  71
  72     pa_assert(u);
  73     pa_sink_assert_ref(s);
  74
  75     for (j = PA_SINK_INPUT(pa_idxset_first(s->inputs, &idx)); j; j = PA_SINK_INPUT(pa_idxset_next(s->inputs, &idx))) {
  76         const char *role;
  77
  78         if (j == ignore)
  79             continue;
  80
  81         if (!(role = pa_proplist_gets(j->proplist, PA_PROP_MEDIA_ROLE)))
  82             continue;
  83
  84         PA_IDXSET_FOREACH(trigger_role, u->trigger_roles, role_idx) {
  85             if (pa_streq(role, trigger_role)) {
  86                 pa_log_debug("Found a '%s' stream that will trigger the auto-cork.", trigger_role);
  87                 return true;
  88             }
  89         }
  90     }
  91
  92     return false;
  93 }
  94
  95 static inline void apply_cork_to_sink(struct userdata *u, pa_sink *s, pa_sink_input *ignore, bool cork) {
  96     pa_sink_input *j;
  97     uint32_t idx, role_idx;
  98     const char *cork_role;
  99     bool trigger = false;
 100
 101     pa_assert(u);
 102     pa_sink_assert_ref(s);
 103
 104     for (j = PA_SINK_INPUT(pa_idxset_first(s->inputs, &idx)); j; j = PA_SINK_INPUT(pa_idxset_next(s->inputs, &idx))) {
 105         bool corked, muted, corked_here;
 106         const char *role;
 107
 108         if (j == ignore)
 109             continue;
 110
 111         if (!(role = pa_proplist_gets(j->proplist, PA_PROP_MEDIA_ROLE)))
 112             continue;
 113
 114         PA_IDXSET_FOREACH(cork_role, u->cork_roles, role_idx) {
 115             if ((trigger = pa_streq(role, cork_role)))
 116                 break;
 117         }
 118         if (!trigger)
 119             continue;
 120
 121         corked = (pa_sink_input_get_state(j) == PA_SINK_INPUT_CORKED);
 122         muted = pa_sink_input_get_mute(j);
 123         corked_here = !!pa_hashmap_get(u->cork_state, j);
 124
 125         if (cork && !corked && !muted) {
 126             pa_log_debug("Found a '%s' stream that should be corked/muted.", cork_role);
 127             if (!corked_here)
 128                 pa_hashmap_put(u->cork_state, j, PA_INT_TO_PTR(1));
 129             pa_sink_input_set_mute(j, true, false);
 130             pa_sink_input_send_event(j, PA_STREAM_EVENT_REQUEST_CORK, NULL);
 131         } else if (!cork) {
 132             pa_hashmap_remove(u->cork_state, j);
 133
 134             if (corked_here && (corked || muted)) {
 135                 pa_log_debug("Found a '%s' stream that should be uncorked/unmuted.", cork_role);
 136                 if (muted)
 137                     pa_sink_input_set_mute(j, false, false);
 138                 if (corked)
 139                     pa_sink_input_send_event(j, PA_STREAM_EVENT_REQUEST_UNCORK, NULL);
 140             }
 141         }
 142     }
 143 }
 144
 145 static void apply_cork(struct userdata *u, pa_sink *s, pa_sink_input *ignore, bool cork) {
 146     pa_assert(u);
 147
 148     if (u->global) {
 149         uint32_t idx;
 150         PA_IDXSET_FOREACH(s, u->core->sinks, idx)
 151             apply_cork_to_sink(u, s, ignore, cork);
 152     } else
 153         apply_cork_to_sink(u, s, ignore, cork);
 154 }
 155
 156 static pa_hook_result_t process(struct userdata *u, pa_sink_input *i, bool create) {
 157     bool cork = false;
 158     const char *role;
 159
 160     pa_assert(u);
 161     pa_sink_input_assert_ref(i);
 162
 163     if (!create)
 164         pa_hashmap_remove(u->cork_state, i);
 165
 166     if (!(role = pa_proplist_gets(i->proplist, PA_PROP_MEDIA_ROLE)))
 167         return PA_HOOK_OK;
 168
 169     if (!i->sink)
 170         return PA_HOOK_OK;
 171
 172     cork = shall_cork(u, i->sink, create ? NULL : i);
 173     apply_cork(u, i->sink, create ? NULL : i, cork);
 174
 175     return PA_HOOK_OK;
 176 }
 177
 178 static pa_hook_result_t sink_input_put_cb(pa_core *core, pa_sink_input *i, struct userdata *u) {
 179     pa_core_assert_ref(core);
 180     pa_sink_input_assert_ref(i);
 181
 182     return process(u, i, true);
 183 }
 184
 185 static pa_hook_result_t sink_input_unlink_cb(pa_core *core, pa_sink_input *i, struct userdata *u) {
 186     pa_sink_input_assert_ref(i);
 187
 188     return process(u, i, false);
 189 }
 190
 191 static pa_hook_result_t sink_input_move_start_cb(pa_core *core, pa_sink_input *i, struct userdata *u) {
 192     pa_core_assert_ref(core);
 193     pa_sink_input_assert_ref(i);
 194
 195     return process(u, i, false);
 196 }
 197
 198 static pa_hook_result_t sink_input_move_finish_cb(pa_core *core, pa_sink_input *i, struct userdata *u) {
 199     pa_core_assert_ref(core);
 200     pa_sink_input_assert_ref(i);
 201
 202     return process(u, i, true);
 203 }
 204
 205 int pa__init(pa_module *m) {
 206     pa_modargs *ma = NULL;
 207     struct userdata *u;
 208     const char *roles;
 209     bool global = false;
 210
 211     pa_assert(m);
 212
 213     if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
 214         pa_log("Failed to parse module arguments");
 215         goto fail;
 216     }
 217
 218     m->userdata = u = pa_xnew(struct userdata, 1);
 219
 220     u->core = m->core;
 221     u->cork_state = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
 222
 223     u->trigger_roles = pa_idxset_new(NULL, NULL);
 224     roles = pa_modargs_get_value(ma, "trigger_roles", NULL);
 225     if (roles) {
 226         const char *split_state = NULL;
 227         char *n = NULL;
 228         while ((n = pa_split(roles, ",", &split_state))) {
 229             if (n[0] != '\0')
 230                 pa_idxset_put(u->trigger_roles, n, NULL);
 231             else
 232                 pa_xfree(n);
 233         }
 234     }
 235     if (pa_idxset_isempty(u->trigger_roles)) {
 236         pa_log_debug("Using role 'phone' as trigger role.");
 237         pa_idxset_put(u->trigger_roles, pa_xstrdup("phone"), NULL);
 238     }
 239
 240     u->cork_roles = pa_idxset_new(NULL, NULL);
 241     roles = pa_modargs_get_value(ma, "cork_roles", NULL);
 242     if (roles) {
 243         const char *split_state = NULL;
 244         char *n = NULL;
 245         while ((n = pa_split(roles, ",", &split_state))) {
 246             if (n[0] != '\0')
 247                 pa_idxset_put(u->cork_roles, n, NULL);
 248             else
 249                 pa_xfree(n);
 250         }
 251     }
 252     if (pa_idxset_isempty(u->cork_roles)) {
 253         pa_log_debug("Using roles 'music' and 'video' as cork roles.");
 254         pa_idxset_put(u->cork_roles, pa_xstrdup("music"), NULL);
 255         pa_idxset_put(u->cork_roles, pa_xstrdup("video"), NULL);
 256     }
 257
 258     if (pa_modargs_get_value_boolean(ma, "global", &global) < 0) {
 259         pa_log("Invalid boolean parameter: global");
 260         goto fail;
 261     }
 262     u->global = global;
 263
 264     u->sink_input_put_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_INPUT_PUT], PA_HOOK_LATE, (pa_hook_cb_t) sink_input_put_cb, u);
 265     u->sink_input_unlink_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_INPUT_UNLINK], PA_HOOK_LATE, (pa_hook_cb_t) sink_input_unlink_cb, u);
 266     u->sink_input_move_start_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_INPUT_MOVE_START], PA_HOOK_LATE, (pa_hook_cb_t) sink_input_move_start_cb, u);
 267     u->sink_input_move_finish_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_INPUT_MOVE_FINISH], PA_HOOK_LATE, (pa_hook_cb_t) sink_input_move_finish_cb, u);
 268
 269     pa_modargs_free(ma);
 270
 271     return 0;
 272
 273 fail:
 274     pa__done(m);
 275
 276     if (ma)
 277         pa_modargs_free(ma);
 278
 279     return -1;
 280
 281 }
 282
 283 void pa__done(pa_module *m) {
 284     struct userdata* u;
 285
 286     pa_assert(m);
 287
 288     if (!(u = m->userdata))
 289         return;
 290
 291     if (u->trigger_roles)
 292         pa_idxset_free(u->trigger_roles, pa_xfree);
 293
 294     if (u->cork_roles)
 295         pa_idxset_free(u->cork_roles, pa_xfree);
 296
 297     if (u->sink_input_put_slot)
 298         pa_hook_slot_free(u->sink_input_put_slot);
 299     if (u->sink_input_unlink_slot)
 300         pa_hook_slot_free(u->sink_input_unlink_slot);
 301     if (u->sink_input_move_start_slot)
 302         pa_hook_slot_free(u->sink_input_move_start_slot);
 303     if (u->sink_input_move_finish_slot)
 304         pa_hook_slot_free(u->sink_input_move_finish_slot);
 305
 306     if (u->cork_state)
 307         pa_hashmap_free(u->cork_state);
 308
 309     pa_xfree(u);
 310
 311 }