C++ (Cpp) pa_namereg_register Examples

Example #1

File: core-scache.c Project: KimT/pulseaudio_kt

static pa_scache_entry* scache_add_item(pa_core *c, const char *name) {
    pa_scache_entry *e;

    pa_assert(c);
    pa_assert(name);

    if ((e = pa_namereg_get(c, name, PA_NAMEREG_SAMPLE))) {
        if (e->memchunk.memblock)
            pa_memblock_unref(e->memchunk.memblock);

        pa_xfree(e->filename);
        pa_proplist_clear(e->proplist);

        pa_assert(e->core == c);

        pa_subscription_post(c, PA_SUBSCRIPTION_EVENT_SAMPLE_CACHE|PA_SUBSCRIPTION_EVENT_CHANGE, e->index);
    } else {
        e = pa_xnew(pa_scache_entry, 1);

        if (!pa_namereg_register(c, name, PA_NAMEREG_SAMPLE, e, TRUE)) {
            pa_xfree(e);
            return NULL;
        }

        e->name = pa_xstrdup(name);
        e->core = c;
        e->proplist = pa_proplist_new();

        pa_idxset_put(c->scache, e, &e->index);

        pa_subscription_post(c, PA_SUBSCRIPTION_EVENT_SAMPLE_CACHE|PA_SUBSCRIPTION_EVENT_NEW, e->index);
    }

    e->last_used_time = 0;
    pa_memchunk_reset(&e->memchunk);
    e->filename = NULL;
    e->lazy = FALSE;
    e->last_used_time = 0;

    pa_sample_spec_init(&e->sample_spec);
    pa_channel_map_init(&e->channel_map);
    pa_cvolume_init(&e->volume);
    e->volume_is_set = FALSE;

    pa_proplist_sets(e->proplist, PA_PROP_MEDIA_ROLE, "event");

    return e;
}

Example #2

File: source.c Project: felfert/pulseaudio

/* Called from main context */
pa_source* pa_source_new(
        pa_core *core,
        pa_source_new_data *data,
        pa_source_flags_t flags) {

    pa_source *s;
    const char *name;
    char st[PA_SAMPLE_SPEC_SNPRINT_MAX], cm[PA_CHANNEL_MAP_SNPRINT_MAX];
    char *pt;

    pa_assert(core);
    pa_assert(data);
    pa_assert(data->name);
    pa_assert_ctl_context();

    s = pa_msgobject_new(pa_source);

    if (!(name = pa_namereg_register(core, data->name, PA_NAMEREG_SOURCE, s, data->namereg_fail))) {
        pa_log_debug("Failed to register name %s.", data->name);
        pa_xfree(s);
        return NULL;
    }

    pa_source_new_data_set_name(data, name);

    if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SOURCE_NEW], data) < 0) {
        pa_xfree(s);
        pa_namereg_unregister(core, name);
        return NULL;
    }

    /* FIXME, need to free s here on failure */

    pa_return_null_if_fail(!data->driver || pa_utf8_valid(data->driver));
    pa_return_null_if_fail(data->name && pa_utf8_valid(data->name) && data->name[0]);

    pa_return_null_if_fail(data->sample_spec_is_set && pa_sample_spec_valid(&data->sample_spec));

    if (!data->channel_map_is_set)
        pa_return_null_if_fail(pa_channel_map_init_auto(&data->channel_map, data->sample_spec.channels, PA_CHANNEL_MAP_DEFAULT));

    pa_return_null_if_fail(pa_channel_map_valid(&data->channel_map));
    pa_return_null_if_fail(data->channel_map.channels == data->sample_spec.channels);

    if (!data->volume_is_set)
        pa_cvolume_reset(&data->volume, data->sample_spec.channels);

    pa_return_null_if_fail(pa_cvolume_valid(&data->volume));
    pa_return_null_if_fail(pa_cvolume_compatible(&data->volume, &data->sample_spec));

    if (!data->muted_is_set)
        data->muted = FALSE;

    if (data->card)
        pa_proplist_update(data->proplist, PA_UPDATE_MERGE, data->card->proplist);

    pa_device_init_description(data->proplist);
    pa_device_init_icon(data->proplist, FALSE);
    pa_device_init_intended_roles(data->proplist);

    if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SOURCE_FIXATE], data) < 0) {
        pa_xfree(s);
        pa_namereg_unregister(core, name);
        return NULL;
    }

    s->parent.parent.free = source_free;
    s->parent.process_msg = pa_source_process_msg;

    s->core = core;
    s->state = PA_SOURCE_INIT;
    s->flags = flags;
    s->priority = 0;
    s->suspend_cause = 0;
    s->name = pa_xstrdup(name);
    s->proplist = pa_proplist_copy(data->proplist);
    s->driver = pa_xstrdup(pa_path_get_filename(data->driver));
    s->module = data->module;
    s->card = data->card;

    s->priority = pa_device_init_priority(s->proplist);

    s->sample_spec = data->sample_spec;
    s->channel_map = data->channel_map;

    s->outputs = pa_idxset_new(NULL, NULL);
    s->n_corked = 0;
    s->monitor_of = NULL;
    s->output_from_master = NULL;

    s->volume = data->volume;
    pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
    s->base_volume = PA_VOLUME_NORM;
    s->n_volume_steps = PA_VOLUME_NORM+1;
    s->muted = data->muted;
    s->refresh_volume = s->refresh_muted = FALSE;

    reset_callbacks(s);
    s->userdata = NULL;

    s->asyncmsgq = NULL;

    /* As a minor optimization we just steal the list instead of
     * copying it here */
    s->ports = data->ports;
    data->ports = NULL;

    s->active_port = NULL;
    s->save_port = FALSE;

    if (data->active_port && s->ports)
        if ((s->active_port = pa_hashmap_get(s->ports, data->active_port)))
            s->save_port = data->save_port;

    if (!s->active_port && s->ports) {
        void *state;
        pa_device_port *p;

        PA_HASHMAP_FOREACH(p, s->ports, state)
            if (!s->active_port || p->priority > s->active_port->priority)
                s->active_port = p;
    }