diff options
Diffstat (limited to 'binding/audiomixer-binding.c')
| -rw-r--r-- | binding/audiomixer-binding.c | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/binding/audiomixer-binding.c b/binding/audiomixer-binding.c index 652df0a..80c4482 100644 --- a/binding/audiomixer-binding.c +++ b/binding/audiomixer-binding.c @@ -1,5 +1,6 @@ /* * Copyright © 2019 Collabora Ltd. + * Copyright © 2019 Konsulko Group * @author George Kiagiadakis <george.kiagiadakis@collabora.com> * * SPDX-License-Identifier: MIT @@ -16,6 +17,13 @@ static afb_event_t controls_changed; static afb_event_t volume_changed; static afb_event_t mute_changed; +static const char *signalcomposer_events[] = { + "event.volume.up", + "event.volume.down", + "event.volume.mute", + NULL, +}; + static void audiomixer_controls_changed_deferred(int signum, void *arg) { @@ -96,6 +104,28 @@ cleanup(sd_event_source *s, void *data) static int init(afb_api_t api) { + int ret; + + ret = afb_daemon_require_api("signal-composer", 1); + if (ret) { + AFB_WARNING("unable to initialize signal-composer binding"); + } else { + const char **tmp = signalcomposer_events; + json_object *args = json_object_new_object(); + json_object *signals = json_object_new_array(); + + while (*tmp) { + json_object_array_add(signals, json_object_new_string(*tmp++)); + } + json_object_object_add(args, "signal", signals); + if(json_object_array_length(signals)) { + afb_api_call_sync(api, "signal-composer", "subscribe", + args, NULL, NULL, NULL); + } else { + json_object_put(args); + } + } + sd_event *e = afb_daemon_get_event_loop(); controls_changed = afb_api_make_event(api, "controls_changed"); @@ -319,6 +349,60 @@ unsubscribe_cb(afb_req_t request) afb_req_success(request, NULL, "Unsubscribed"); } +static void +onevent(afb_api_t api, const char *event, struct json_object *object) +{ + const struct mixer_control *ctl; + json_object *tmp = NULL; + const char *uid; + const char *value; + + json_object_object_get_ex(object, "uid", &tmp); + if (tmp == NULL) + return; + + uid = json_object_get_string(tmp); + if (strncmp(uid, "event.volume.", 13)) + return; + + json_object_object_get_ex(object, "value", &tmp); + if (tmp == NULL) + return; + + value = json_object_get_string(tmp); + if (strncmp(value, "true", 4)) + return; + + audiomixer_lock(audiomixer); + + ctl = audiomixer_find_control(audiomixer, "Master"); + if (!ctl) + goto unlock; + + if (!strcmp(uid, "event.volume.mute")) { + audiomixer_change_mute(audiomixer, ctl, !ctl->mute); + } else { + double volume = ctl->volume; + + if (!strcmp(uid, "event.volume.up")) { + volume += 0.05; // up 5% + if (volume > 1.0) + volume = 1.0; // clamp to 100% + } else if (!strcmp(uid, "event.volume.down")) { + volume -= 0.05; // down 5% + if (volume < 0.0) + volume = 0.0; // clamp to 0% + } else { + AFB_WARNING("Unhandled signal-composer uid '%s'", uid); + goto unlock; + } + audiomixer_change_volume(audiomixer, ctl, volume); + } + +unlock: + audiomixer_unlock(audiomixer); +} + static const afb_verb_t verbs[]= { { .verb = "list_controls", .callback = list_controls_cb, .info = "List the available controls" }, { .verb = "volume", .callback = volume_cb, .info = "Get/Set volume" }, @@ -332,5 +416,6 @@ const afb_binding_t afbBindingV3 = { .api = "audiomixer", .specification = "AudioMixer API", .verbs = verbs, + .onevent = onevent, .init = init, }; |