From a729786637ddcccf41591c74eca357a8e8a63f2c Mon Sep 17 00:00:00 2001 From: Lennart Poettering Date: Thu, 12 Feb 2009 03:19:40 +0100 Subject: implement a module that corks music/video streams automatically when a phone call is active --- src/modules/module-cork-music-on-phone.c | 224 +++++++++++++++++++++++++++++++ 1 file changed, 224 insertions(+) create mode 100644 src/modules/module-cork-music-on-phone.c (limited to 'src/modules/module-cork-music-on-phone.c') diff --git a/src/modules/module-cork-music-on-phone.c b/src/modules/module-cork-music-on-phone.c new file mode 100644 index 00000000..fb90cf34 --- /dev/null +++ b/src/modules/module-cork-music-on-phone.c @@ -0,0 +1,224 @@ +/*** + This file is part of PulseAudio. + + Copyright 2009 Lennart Poettering + + 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. +***/ + +#ifdef HAVE_CONFIG_H +#include +#endif + +#include +#include +#include +#include +#include +#include +#include + +#include "module-cork-music-on-phone-symdef.h" + +PA_MODULE_AUTHOR("Lennart Poettering"); +PA_MODULE_DESCRIPTION("Mute or cork music while a phone stream exists"); +PA_MODULE_VERSION(PACKAGE_VERSION); +PA_MODULE_LOAD_ONCE(TRUE); + +static const char* const valid_modargs[] = { + NULL +}; + +struct userdata { + pa_core *core; + pa_hashmap *cork_state; + pa_hook_slot + *sink_input_put_slot, + *sink_input_unlink_slot, + *sink_input_move_start_slot, + *sink_input_move_finish_slot; +}; + +static pa_bool_t shall_cork(pa_sink *s, pa_sink_input *ignore) { + pa_sink_input *j; + uint32_t idx; + pa_sink_assert_ref(s); + + for (j = PA_SINK_INPUT(pa_idxset_first(s->inputs, &idx)); j; j = PA_SINK_INPUT(pa_idxset_next(s->inputs, &idx))) { + const char *role; + + if (j == ignore) + continue; + + if (!(role = pa_proplist_gets(j->proplist, PA_PROP_MEDIA_ROLE))) + continue; + + if (pa_streq(role, "phone")) + return TRUE; + } + + return FALSE; +} + +static void apply_cork(struct userdata *u, pa_sink *s, pa_sink_input *ignore, pa_bool_t cork) { + pa_sink_input *j; + uint32_t idx; + + pa_assert(u); + pa_sink_assert_ref(s); + + for (j = PA_SINK_INPUT(pa_idxset_first(s->inputs, &idx)); j; j = PA_SINK_INPUT(pa_idxset_next(s->inputs, &idx))) { + pa_bool_t corked; + const char *role; + + if (j == ignore) + continue; + + if (!(role = pa_proplist_gets(j->proplist, PA_PROP_MEDIA_ROLE))) + continue; + + if (!pa_streq(role, "video") && + !pa_streq(role, "music")) + continue; + + corked = !!pa_hashmap_get(u->cork_state, j); + + if (cork && !corked) { + pa_hashmap_put(u->cork_state, j, PA_INT_TO_PTR(1)); + pa_sink_input_set_mute(j, TRUE, FALSE); + pa_sink_input_send_event(j, PA_STREAM_EVENT_REQUEST_CORK, NULL); + } else if (!cork) { + pa_hashmap_remove(u->cork_state, j); + + if (corked) { + pa_sink_input_set_mute(j, FALSE, FALSE); + pa_sink_input_send_event(j, PA_STREAM_EVENT_REQUEST_UNCORK, NULL); + } + } + } +} + +static pa_hook_result_t process(struct userdata *u, pa_sink_input *i, pa_bool_t create) { + pa_bool_t cork = FALSE; + const char *role; + + pa_assert(u); + pa_sink_input_assert_ref(i); + + if (!create) + pa_hashmap_remove(u->cork_state, i); + + if (!(role = pa_proplist_gets(i->proplist, PA_PROP_MEDIA_ROLE))) + return PA_HOOK_OK; + + if (!pa_streq(role, "phone") && + !pa_streq(role, "music") && + !pa_streq(role, "video")) + return PA_HOOK_OK; + + cork = shall_cork(i->sink, create ? NULL : i); + apply_cork(u, i->sink, create ? NULL : i, cork); + + return PA_HOOK_OK; +} + +static pa_hook_result_t sink_input_put_cb(pa_core *core, pa_sink_input *i, struct userdata *u) { + pa_core_assert_ref(core); + pa_sink_input_assert_ref(i); + + return process(u, i, TRUE); +} + +static pa_hook_result_t sink_input_unlink_cb(pa_core *core, pa_sink_input *i, struct userdata *u) { + pa_core_assert_ref(core); + pa_sink_input_assert_ref(i); + + return process(u, i, FALSE); +} + +static pa_hook_result_t sink_input_move_start_cb(pa_core *core, pa_sink_input *i, struct userdata *u) { + pa_core_assert_ref(core); + pa_sink_input_assert_ref(i); + + return process(u, i, FALSE); +} + +static pa_hook_result_t sink_input_move_finish_cb(pa_core *core, pa_sink_input *i, struct userdata *u) { + pa_core_assert_ref(core); + pa_sink_input_assert_ref(i); + + return process(u, i, TRUE); +} + +int pa__init(pa_module *m) { + pa_modargs *ma = NULL; + struct userdata *u; + + pa_assert(m); + + if (!(ma = pa_modargs_new(m->argument, valid_modargs))) { + pa_log("Failed to parse module arguments"); + goto fail; + } + + m->userdata = u = pa_xnew(struct userdata, 1); + + u->core = m->core; + u->cork_state = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func); + + 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); + 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); + 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); + 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); + + pa_modargs_free(ma); + + return 0; + +fail: + pa__done(m); + + if (ma) + pa_modargs_free(ma); + + return -1; + + +} + +void pa__done(pa_module *m) { + struct userdata* u; + + pa_assert(m); + + if (!(u = m->userdata)) + return; + + if (u->sink_input_put_slot) + pa_hook_slot_free(u->sink_input_put_slot); + if (u->sink_input_unlink_slot) + pa_hook_slot_free(u->sink_input_unlink_slot); + if (u->sink_input_move_start_slot) + pa_hook_slot_free(u->sink_input_move_start_slot); + if (u->sink_input_move_finish_slot) + pa_hook_slot_free(u->sink_input_move_finish_slot); + + if (u->cork_state) + pa_hashmap_free(u->cork_state, NULL, NULL); + + pa_xfree(u); + +} -- cgit