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
  43 static const char* const valid_modargs[] = {
  44     NULL
  45 };
  46
  47 struct userdata {
  48     pa_core *core;
  49     pa_hashmap *cork_state;
  50     pa_hook_slot
  51         *sink_input_put_slot,
  52         *sink_input_unlink_slot,
  53         *sink_input_move_start_slot,
  54         *sink_input_move_finish_slot;
  55 };
  56
  57 static pa_bool_t shall_cork(pa_sink *s, pa_sink_input *ignore) {
  58     pa_sink_input *j;
  59     uint32_t idx;
  60     pa_sink_assert_ref(s);
  61
  62     for (j = PA_SINK_INPUT(pa_idxset_first(s->inputs, &idx)); j; j = PA_SINK_INPUT(pa_idxset_next(s->inputs, &idx))) {
  63         const char *role;
  64
  65         if (j == ignore)
  66             continue;
  67
  68         if (!(role = pa_proplist_gets(j->proplist, PA_PROP_MEDIA_ROLE)))
  69             continue;
  70
  71         if (pa_streq(role, "phone")) {
  72             pa_log_debug("Found a phone stream that will trigger the auto-cork.");
  73             return TRUE;
  74         }
  75     }
  76
  77     return FALSE;
  78 }
  79
  80 static void apply_cork(struct userdata *u, pa_sink *s, pa_sink_input *ignore, pa_bool_t cork) {
  81     pa_sink_input *j;
  82     uint32_t idx;
  83
  84     pa_assert(u);
  85     pa_sink_assert_ref(s);
  86
  87     for (j = PA_SINK_INPUT(pa_idxset_first(s->inputs, &idx)); j; j = PA_SINK_INPUT(pa_idxset_next(s->inputs, &idx))) {
  88         pa_bool_t corked, muted, corked_here;
  89         const char *role;
  90
  91         if (j == ignore)
  92             continue;
  93
  94         if (!(role = pa_proplist_gets(j->proplist, PA_PROP_MEDIA_ROLE)))
  95             continue;
  96
  97         if (!pa_streq(role, "video") &&
  98             !pa_streq(role, "music"))
  99             continue;
 100
 101         corked = (pa_sink_input_get_state(j) == PA_SINK_INPUT_CORKED);
 102         muted = pa_sink_input_get_mute(j);
 103         corked_here = !!pa_hashmap_get(u->cork_state, j);
 104
 105         if (cork && !corked && !muted) {
 106             pa_log_debug("Found a music/video stream that should be corked/muted.");
 107             if (!corked_here)
 108                 pa_hashmap_put(u->cork_state, j, PA_INT_TO_PTR(1));
 109             pa_sink_input_set_mute(j, TRUE, FALSE);
 110             pa_sink_input_send_event(j, PA_STREAM_EVENT_REQUEST_CORK, NULL);
 111         } else if (!cork) {
 112             pa_hashmap_remove(u->cork_state, j);
 113
 114             if (corked_here && (corked || muted)) {
 115                 pa_log_debug("Found a music/video stream that should be uncorked/unmuted.");
 116                 if (muted)
 117                     pa_sink_input_set_mute(j, FALSE, FALSE);
 118                 if (corked)
 119                     pa_sink_input_send_event(j, PA_STREAM_EVENT_REQUEST_UNCORK, NULL);
 120             }
 121         }
 122     }
 123 }
 124
 125 static pa_hook_result_t process(struct userdata *u, pa_sink_input *i, pa_bool_t create) {
 126     pa_bool_t cork = FALSE;
 127     const char *role;
 128
 129     pa_assert(u);
 130     pa_sink_input_assert_ref(i);
 131
 132     if (!create)
 133         pa_hashmap_remove(u->cork_state, i);
 134
 135     if (!(role = pa_proplist_gets(i->proplist, PA_PROP_MEDIA_ROLE)))
 136         return PA_HOOK_OK;
 137
 138     if (!pa_streq(role, "phone") &&
 139         !pa_streq(role, "music") &&
 140         !pa_streq(role, "video"))
 141         return PA_HOOK_OK;
 142
 143     if (!i->sink)
 144         return PA_HOOK_OK;
 145
 146     cork = shall_cork(i->sink, create ? NULL : i);
 147     apply_cork(u, i->sink, create ? NULL : i, cork);
 148
 149     return PA_HOOK_OK;
 150 }
 151
 152 static pa_hook_result_t sink_input_put_cb(pa_core *core, pa_sink_input *i, struct userdata *u) {
 153     pa_core_assert_ref(core);
 154     pa_sink_input_assert_ref(i);
 155
 156     return process(u, i, TRUE);
 157 }
 158
 159 static pa_hook_result_t sink_input_unlink_cb(pa_core *core, pa_sink_input *i, struct userdata *u) {
 160     pa_sink_input_assert_ref(i);
 161
 162     return process(u, i, FALSE);
 163 }
 164
 165 static pa_hook_result_t sink_input_move_start_cb(pa_core *core, pa_sink_input *i, struct userdata *u) {
 166     pa_core_assert_ref(core);
 167     pa_sink_input_assert_ref(i);
 168
 169     return process(u, i, FALSE);
 170 }
 171
 172 static pa_hook_result_t sink_input_move_finish_cb(pa_core *core, pa_sink_input *i, struct userdata *u) {
 173     pa_core_assert_ref(core);
 174     pa_sink_input_assert_ref(i);
 175
 176     return process(u, i, TRUE);
 177 }
 178
 179 int pa__init(pa_module *m) {
 180     pa_modargs *ma = NULL;
 181     struct userdata *u;
 182
 183     pa_assert(m);
 184
 185     if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
 186         pa_log("Failed to parse module arguments");
 187         goto fail;
 188     }
 189
 190     m->userdata = u = pa_xnew(struct userdata, 1);
 191
 192     u->core = m->core;
 193     u->cork_state = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
 194
 195     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);
 196     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);
 197     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);
 198     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);
 199
 200     pa_modargs_free(ma);
 201
 202     return 0;
 203
 204 fail:
 205     pa__done(m);
 206
 207     if (ma)
 208         pa_modargs_free(ma);
 209
 210     return -1;
 211
 212
 213 }
 214
 215 void pa__done(pa_module *m) {
 216     struct userdata* u;
 217
 218     pa_assert(m);
 219
 220     if (!(u = m->userdata))
 221         return;
 222
 223     if (u->sink_input_put_slot)
 224         pa_hook_slot_free(u->sink_input_put_slot);
 225     if (u->sink_input_unlink_slot)
 226         pa_hook_slot_free(u->sink_input_unlink_slot);
 227     if (u->sink_input_move_start_slot)
 228         pa_hook_slot_free(u->sink_input_move_start_slot);
 229     if (u->sink_input_move_finish_slot)
 230         pa_hook_slot_free(u->sink_input_move_finish_slot);
 231
 232     if (u->cork_state)
 233         pa_hashmap_free(u->cork_state, NULL, NULL);
 234
 235     pa_xfree(u);
 236
 237 }