Example #1
0
bool pa_speex_ec_init(pa_core *c, pa_echo_canceller *ec,
                      pa_sample_spec *rec_ss, pa_channel_map *rec_map,
                      pa_sample_spec *play_ss, pa_channel_map *play_map,
                      pa_sample_spec *out_ss, pa_channel_map *out_map,
                      uint32_t *nframes, const char *args) {
    int rate;
    uint32_t frame_size_ms, filter_size_ms;
    pa_modargs *ma;

    if (!(ma = pa_modargs_new(args, valid_modargs))) {
        pa_log("Failed to parse submodule arguments.");
        goto fail;
    }

    filter_size_ms = DEFAULT_FILTER_SIZE_MS;
    if (pa_modargs_get_value_u32(ma, "filter_size_ms", &filter_size_ms) < 0 || filter_size_ms < 1 || filter_size_ms > 2000) {
        pa_log("Invalid filter_size_ms specification");
        goto fail;
    }

    frame_size_ms = DEFAULT_FRAME_SIZE_MS;
    if (pa_modargs_get_value_u32(ma, "frame_size_ms", &frame_size_ms) < 0 || frame_size_ms < 1 || frame_size_ms > 200) {
        pa_log("Invalid frame_size_ms specification");
        goto fail;
    }

    pa_speex_ec_fixate_spec(rec_ss, rec_map, play_ss, play_map, out_ss, out_map);

    rate = out_ss->rate;
    *nframes = pa_echo_canceller_blocksize_power2(rate, frame_size_ms);

    pa_log_debug ("Using nframes %d, channels %d, rate %d", *nframes, out_ss->channels, out_ss->rate);
    ec->params.priv.speex.state = speex_echo_state_init_mc(*nframes, (rate * filter_size_ms) / 1000, out_ss->channels, out_ss->channels);

    if (!ec->params.priv.speex.state)
        goto fail;

    speex_echo_ctl(ec->params.priv.speex.state, SPEEX_ECHO_SET_SAMPLING_RATE, &rate);

    if (!pa_speex_ec_preprocessor_init(ec, out_ss, *nframes, ma))
        goto fail;

    pa_modargs_free(ma);
    return true;

fail:
    if (ma)
        pa_modargs_free(ma);
    if (ec->params.priv.speex.pp_state) {
        speex_preprocess_state_destroy(ec->params.priv.speex.pp_state);
        ec->params.priv.speex.pp_state = NULL;
    }
    if (ec->params.priv.speex.state) {
        speex_echo_state_destroy(ec->params.priv.speex.state);
        ec->params.priv.speex.state = NULL;
    }
    return false;
}
Example #2
0
int pa__init(pa_module*m) {
    pa_modargs *ma = NULL;
    struct userdata *u;
    pa_volume_t volume_limit = PA_CLAMP_VOLUME(PA_VOLUME_NORM*3/2);
    pa_volume_t volume_step = PA_VOLUME_NORM/20;

    pa_assert(m);

    if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
        pa_log("Failed to parse module arguments");
        goto fail;
    }

    if (pa_modargs_get_value_u32(ma, "volume_limit", &volume_limit) < 0) {
        pa_log("Failed to parse volume limit");
        goto fail;
    }

    if (pa_modargs_get_value_u32(ma, "volume_step", &volume_step) < 0) {
        pa_log("Failed to parse volume step");
        goto fail;
    }

    m->userdata = u = pa_xnew(struct userdata, 1);
    u->module = m;
    u->io = NULL;
    u->config = NULL;
    u->sink_name = pa_xstrdup(pa_modargs_get_value(ma, "sink", NULL));
    u->lirc_fd = -1;
    u->mute_toggle_save = 0;
    u->volume_limit = PA_CLAMP_VOLUME(volume_limit);
    u->volume_step = PA_CLAMP_VOLUME(volume_step);

    if ((u->lirc_fd = lirc_init((char*) pa_modargs_get_value(ma, "appname", "pulseaudio"), 1)) < 0) {
        pa_log("lirc_init() failed.");
        goto fail;
    }

    if (lirc_readconfig((char*) pa_modargs_get_value(ma, "config", NULL), &u->config, NULL) < 0) {
        pa_log("lirc_readconfig() failed.");
        goto fail;
    }

    u->io = m->core->mainloop->io_new(m->core->mainloop, u->lirc_fd, PA_IO_EVENT_INPUT|PA_IO_EVENT_HANGUP, io_callback, u);

    pa_modargs_free(ma);

    return 0;

fail:

    if (ma)
        pa_modargs_free(ma);

    pa__done(m);
    return -1;
}
Example #3
0
pa_bool_t pa_speex_ec_init(pa_core *c, pa_echo_canceller *ec,
                           pa_sample_spec *source_ss, pa_channel_map *source_map,
                           pa_sample_spec *sink_ss, pa_channel_map *sink_map,
                           uint32_t *blocksize, const char *args)
{
    int framelen, y, rate;
    uint32_t frame_size_ms, filter_size_ms;
    pa_modargs *ma;

    if (!(ma = pa_modargs_new(args, valid_modargs))) {
        pa_log("Failed to parse submodule arguments.");
        goto fail;
    }

    filter_size_ms = DEFAULT_FILTER_SIZE_MS;
    if (pa_modargs_get_value_u32(ma, "filter_size_ms", &filter_size_ms) < 0 || filter_size_ms < 1 || filter_size_ms > 2000) {
        pa_log("Invalid filter_size_ms specification");
        goto fail;
    }

    frame_size_ms = DEFAULT_FRAME_SIZE_MS;
    if (pa_modargs_get_value_u32(ma, "frame_size_ms", &frame_size_ms) < 0 || frame_size_ms < 1 || frame_size_ms > 200) {
        pa_log("Invalid frame_size_ms specification");
        goto fail;
    }

    pa_speex_ec_fixate_spec(source_ss, source_map, sink_ss, sink_map);

    rate = source_ss->rate;
    framelen = (rate * frame_size_ms) / 1000;
    /* framelen should be a power of 2, round down to nearest power of two */
    y = 1 << ((8 * sizeof (int)) - 2);
    while (y > framelen)
      y >>= 1;
    framelen = y;

    *blocksize = framelen * pa_frame_size (source_ss);

    pa_log_debug ("Using framelen %d, blocksize %u, channels %d, rate %d", framelen, *blocksize, source_ss->channels, source_ss->rate);

    ec->params.priv.speex.state = speex_echo_state_init_mc (framelen, (rate * filter_size_ms) / 1000, source_ss->channels, source_ss->channels);

    if (!ec->params.priv.speex.state)
	goto fail;

    speex_echo_ctl(ec->params.priv.speex.state, SPEEX_ECHO_SET_SAMPLING_RATE, &rate);

    pa_modargs_free(ma);
    return TRUE;

fail:
    if (ma)
	pa_modargs_free(ma);
    return FALSE;
}
int pa__init(pa_module*m) {
    pa_modargs *ma = NULL;
    int ret = -1;
    uint32_t pid = 0;

    pa_assert(m);

    if (!(ma = pa_modargs_new(m->argument, valid_modargs)) ||
        pa_modargs_get_value_u32(ma, "pid", &pid) < 0 ||
        !pid) {
        pa_log("Failed to parse module arguments");
        goto finish;
    }

    if (kill((pid_t) pid, SIGUSR1) < 0)
        pa_log_warn("kill(%u) failed: %s", pid, pa_cstrerror(errno));

    pa_module_unload_request(m, true);

    ret = 0;

finish:
    if (ma)
        pa_modargs_free(ma);

    return ret;
}
int pa__init(pa_module*m) {
    pa_modargs *ma = NULL;
    struct userdata *u;
    uint32_t timeout = 5;
    uint32_t idx;
    pa_sink *sink;
    pa_source *source;

    pa_assert(m);

    if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
        pa_log("Failed to parse module arguments.");
        goto fail;
    }

    if (pa_modargs_get_value_u32(ma, "timeout", &timeout) < 0) {
        pa_log("Failed to parse timeout value.");
        goto fail;
    }

    m->userdata = u = pa_xnew(struct userdata, 1);
    u->core = m->core;
    u->timeout = timeout;
    u->device_infos = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);

    PA_IDXSET_FOREACH(sink, m->core->sinks, idx)
        device_new_hook_cb(m->core, PA_OBJECT(sink), u);

    PA_IDXSET_FOREACH(source, m->core->sources, idx)
        device_new_hook_cb(m->core, PA_OBJECT(source), u);

    u->sink_new_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_PUT], PA_HOOK_NORMAL, (pa_hook_cb_t) device_new_hook_cb, u);
    u->source_new_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_PUT], PA_HOOK_NORMAL, (pa_hook_cb_t) device_new_hook_cb, u);
    u->sink_unlink_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_UNLINK_POST], PA_HOOK_NORMAL, (pa_hook_cb_t) device_unlink_hook_cb, u);
    u->source_unlink_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_UNLINK_POST], PA_HOOK_NORMAL, (pa_hook_cb_t) device_unlink_hook_cb, u);
    u->sink_state_changed_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_STATE_CHANGED], PA_HOOK_NORMAL, (pa_hook_cb_t) device_state_changed_hook_cb, u);
    u->source_state_changed_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_STATE_CHANGED], PA_HOOK_NORMAL, (pa_hook_cb_t) device_state_changed_hook_cb, u);

    u->sink_input_new_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_INPUT_FIXATE], PA_HOOK_NORMAL, (pa_hook_cb_t) sink_input_fixate_hook_cb, u);
    u->source_output_new_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_FIXATE], PA_HOOK_NORMAL, (pa_hook_cb_t) source_output_fixate_hook_cb, u);
    u->sink_input_unlink_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_INPUT_UNLINK_POST], PA_HOOK_NORMAL, (pa_hook_cb_t) sink_input_unlink_hook_cb, u);
    u->source_output_unlink_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK_POST], PA_HOOK_NORMAL, (pa_hook_cb_t) source_output_unlink_hook_cb, u);
    u->sink_input_move_start_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_INPUT_MOVE_START], PA_HOOK_NORMAL, (pa_hook_cb_t) sink_input_move_start_hook_cb, u);
    u->source_output_move_start_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_START], PA_HOOK_NORMAL, (pa_hook_cb_t) source_output_move_start_hook_cb, u);
    u->sink_input_move_finish_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_INPUT_MOVE_FINISH], PA_HOOK_NORMAL, (pa_hook_cb_t) sink_input_move_finish_hook_cb, u);
    u->source_output_move_finish_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FINISH], PA_HOOK_NORMAL, (pa_hook_cb_t) source_output_move_finish_hook_cb, u);
    u->sink_input_state_changed_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_INPUT_STATE_CHANGED], PA_HOOK_NORMAL, (pa_hook_cb_t) sink_input_state_changed_hook_cb, u);
    u->source_output_state_changed_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_STATE_CHANGED], PA_HOOK_NORMAL, (pa_hook_cb_t) source_output_state_changed_hook_cb, u);

    pa_modargs_free(ma);
    return 0;

fail:

    if (ma)
        pa_modargs_free(ma);

    return -1;
}
Example #6
0
pa_bool_t pa_adrian_ec_init(pa_core *c, pa_echo_canceller *ec,
                            pa_sample_spec *rec_ss, pa_channel_map *rec_map,
                            pa_sample_spec *play_ss, pa_channel_map *play_map,
                            pa_sample_spec *out_ss, pa_channel_map *out_map,
                            uint32_t *nframes, const char *args)
{
    int rate, have_vector = 0;
    uint32_t frame_size_ms;
    pa_modargs *ma;

    if (!(ma = pa_modargs_new(args, valid_modargs))) {
        pa_log("Failed to parse submodule arguments.");
        goto fail;
    }

    frame_size_ms = DEFAULT_FRAME_SIZE_MS;
    if (pa_modargs_get_value_u32(ma, "frame_size_ms", &frame_size_ms) < 0 || frame_size_ms < 1 || frame_size_ms > 200) {
        pa_log("Invalid frame_size_ms specification");
        goto fail;
    }

    pa_adrian_ec_fixate_spec(rec_ss, rec_map, play_ss, play_map, out_ss, out_map);

    rate = out_ss->rate;
    *nframes = (rate * frame_size_ms) / 1000;
    ec->params.priv.adrian.blocksize = (*nframes) * pa_frame_size(out_ss);

    pa_log_debug ("Using nframes %d, blocksize %u, channels %d, rate %d", *nframes, ec->params.priv.adrian.blocksize, out_ss->channels, out_ss->rate);

    /* For now we only support SSE */
    if (c->cpu_info.cpu_type == PA_CPU_X86 && (c->cpu_info.flags.x86 & PA_CPU_X86_SSE))
        have_vector = 1;

    ec->params.priv.adrian.aec = AEC_init(rate, have_vector);
    if (!ec->params.priv.adrian.aec)
        goto fail;

    pa_modargs_free(ma);
    return TRUE;

fail:
    if (ma)
        pa_modargs_free(ma);
    return FALSE;
}
int pa__init(pa_module*m) {
    struct userdata *u;
    pa_modargs *ma;
    pa_source_new_data data;
    uint32_t frequency;
    pa_sample_spec ss;

    pa_assert(m);

    if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
        pa_log("failed to parse module arguments.");
        goto fail;
    }

    ss.format = PA_SAMPLE_FLOAT32;
    ss.channels = 1;
    ss.rate = 44100;

    if (pa_modargs_get_value_u32(ma, "rate", &ss.rate) < 0 || ss.rate <= 1) {
        pa_log("Invalid rate specification");
        goto fail;
    }

    frequency = 440;
    if (pa_modargs_get_value_u32(ma, "frequency", &frequency) < 0 || frequency < 1 || frequency > ss.rate/2) {
        pa_log("Invalid frequency specification");
        goto fail;
    }

    m->userdata = u = pa_xnew0(struct userdata, 1);
    u->core = m->core;
    u->module = m;
    u->rtpoll = pa_rtpoll_new();
    pa_thread_mq_init(&u->thread_mq, m->core->mainloop, u->rtpoll);

    u->peek_index = 0;
    pa_memchunk_sine(&u->memchunk, m->core->mempool, ss.rate, frequency);

    pa_source_new_data_init(&data);
    data.driver = __FILE__;
    data.module = m;
    pa_source_new_data_set_name(&data, pa_modargs_get_value(ma, "source_name", DEFAULT_SOURCE_NAME));
    pa_proplist_setf(data.proplist, PA_PROP_DEVICE_DESCRIPTION, "Sine source at %u Hz", (unsigned) frequency);
    pa_proplist_sets(data.proplist, PA_PROP_DEVICE_CLASS, "abstract");
    pa_proplist_setf(data.proplist, "sine.hz", "%u", frequency);
    pa_source_new_data_set_sample_spec(&data, &ss);

    if (pa_modargs_get_proplist(ma, "source_properties", data.proplist, PA_UPDATE_REPLACE) < 0) {
        pa_log("Invalid properties");
        pa_source_new_data_done(&data);
        goto fail;
    }

    u->source = pa_source_new(m->core, &data, PA_SOURCE_LATENCY);
    pa_source_new_data_done(&data);

    if (!u->source) {
        pa_log("Failed to create source.");
        goto fail;
    }

    u->source->parent.process_msg = source_process_msg;
    u->source->update_requested_latency = source_update_requested_latency_cb;
    u->source->userdata = u;

    u->block_usec = BLOCK_USEC;

    pa_source_set_asyncmsgq(u->source, u->thread_mq.inq);
    pa_source_set_rtpoll(u->source, u->rtpoll);
    pa_source_set_fixed_latency(u->source, u->block_usec);

    if (!(u->thread = pa_thread_new("sine-source", thread_func, u))) {
        pa_log("Failed to create thread.");
        goto fail;
    }

    pa_source_put(u->source);

    pa_modargs_free(ma);

    return 0;

fail:
    if (ma)
        pa_modargs_free(ma);

    pa__done(m);

    return -1;
}
int pa__init(pa_module*m) {
    struct userdata *u = NULL;
    pa_sample_spec ss;
    pa_channel_map map;
    pa_modargs *ma = NULL;
    jack_status_t status;
    const char *server_name, *client_name;
    uint32_t channels = 0;
    pa_bool_t do_connect = TRUE;
    unsigned i;
    const char **ports = NULL, **p;
    pa_sink_new_data data;

    pa_assert(m);

    jack_set_error_function(jack_error_func);

    if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
        pa_log("Failed to parse module arguments.");
        goto fail;
    }

    if (pa_modargs_get_value_boolean(ma, "connect", &do_connect) < 0) {
        pa_log("Failed to parse connect= argument.");
        goto fail;
    }

    server_name = pa_modargs_get_value(ma, "server_name", NULL);
    client_name = pa_modargs_get_value(ma, "client_name", "PulseAudio JACK Sink");

    m->userdata = u = pa_xnew0(struct userdata, 1);
    u->core = m->core;
    u->module = m;
    u->saved_frame_time_valid = FALSE;
    u->rtpoll = pa_rtpoll_new();
    pa_thread_mq_init(&u->thread_mq, m->core->mainloop, u->rtpoll);

    /* The queue linking the JACK thread and our RT thread */
    u->jack_msgq = pa_asyncmsgq_new(0);

    /* The msgq from the JACK RT thread should have an even higher
     * priority than the normal message queues, to match the guarantee
     * all other drivers make: supplying the audio device with data is
     * the top priority -- and as long as that is possible we don't do
     * anything else */
    u->rtpoll_item = pa_rtpoll_item_new_asyncmsgq_read(u->rtpoll, PA_RTPOLL_EARLY-1, u->jack_msgq);

    if (!(u->client = jack_client_open(client_name, server_name ? JackServerName : JackNullOption, &status, server_name))) {
        pa_log("jack_client_open() failed.");
        goto fail;
    }

    ports = jack_get_ports(u->client, NULL, JACK_DEFAULT_AUDIO_TYPE, JackPortIsPhysical|JackPortIsInput);

    channels = 0;
    for (p = ports; *p; p++)
        channels++;

    if (!channels)
        channels = m->core->default_sample_spec.channels;

    if (pa_modargs_get_value_u32(ma, "channels", &channels) < 0 ||
        channels <= 0 ||
        channels > PA_CHANNELS_MAX) {
        pa_log("Failed to parse channels= argument.");
        goto fail;
    }

    if (channels == m->core->default_channel_map.channels)
        map = m->core->default_channel_map;
    else
        pa_channel_map_init_extend(&map, channels, PA_CHANNEL_MAP_ALSA);

    if (pa_modargs_get_channel_map(ma, NULL, &map) < 0 || map.channels != channels) {
        pa_log("Failed to parse channel_map= argument.");
        goto fail;
    }

    pa_log_info("Successfully connected as '%s'", jack_get_client_name(u->client));

    u->channels = ss.channels = (uint8_t) channels;
    ss.rate = jack_get_sample_rate(u->client);
    ss.format = PA_SAMPLE_FLOAT32NE;

    pa_assert(pa_sample_spec_valid(&ss));

    for (i = 0; i < ss.channels; i++) {
        if (!(u->port[i] = jack_port_register(u->client, pa_channel_position_to_string(map.map[i]), JACK_DEFAULT_AUDIO_TYPE, JackPortIsOutput|JackPortIsTerminal, 0))) {
            pa_log("jack_port_register() failed.");
            goto fail;
        }
    }

    pa_sink_new_data_init(&data);
    data.driver = __FILE__;
    data.module = m;
    pa_sink_new_data_set_name(&data, pa_modargs_get_value(ma, "sink_name", DEFAULT_SINK_NAME));
    pa_sink_new_data_set_sample_spec(&data, &ss);
    pa_sink_new_data_set_channel_map(&data, &map);
    pa_proplist_sets(data.proplist, PA_PROP_DEVICE_API, "jack");
    if (server_name)
        pa_proplist_sets(data.proplist, PA_PROP_DEVICE_STRING, server_name);
    pa_proplist_setf(data.proplist, PA_PROP_DEVICE_DESCRIPTION, "Jack sink (%s)", jack_get_client_name(u->client));
    pa_proplist_sets(data.proplist, "jack.client_name", jack_get_client_name(u->client));

    if (pa_modargs_get_proplist(ma, "sink_properties", data.proplist, PA_UPDATE_REPLACE) < 0) {
        pa_log("Invalid properties");
        pa_sink_new_data_done(&data);
        goto fail;
    }

    u->sink = pa_sink_new(m->core, &data, PA_SINK_LATENCY);
    pa_sink_new_data_done(&data);

    if (!u->sink) {
        pa_log("Failed to create sink.");
        goto fail;
    }

    u->sink->parent.process_msg = sink_process_msg;
    u->sink->userdata = u;

    pa_sink_set_asyncmsgq(u->sink, u->thread_mq.inq);
    pa_sink_set_rtpoll(u->sink, u->rtpoll);
    pa_sink_set_max_request(u->sink, jack_get_buffer_size(u->client) * pa_frame_size(&u->sink->sample_spec));

    jack_set_process_callback(u->client, jack_process, u);
    jack_on_shutdown(u->client, jack_shutdown, u);
    jack_set_thread_init_callback(u->client, jack_init, u);
    jack_set_buffer_size_callback(u->client, jack_buffer_size, u);

    if (!(u->thread = pa_thread_new(thread_func, u))) {
        pa_log("Failed to create thread.");
        goto fail;
    }

    if (jack_activate(u->client)) {
        pa_log("jack_activate() failed");
        goto fail;
    }

    if (do_connect) {
        for (i = 0, p = ports; i < ss.channels; i++, p++) {

            if (!*p) {
                pa_log("Not enough physical output ports, leaving unconnected.");
                break;
            }

            pa_log_info("Connecting %s to %s", jack_port_name(u->port[i]), *p);

            if (jack_connect(u->client, jack_port_name(u->port[i]), *p)) {
                pa_log("Failed to connect %s to %s, leaving unconnected.", jack_port_name(u->port[i]), *p);
                break;
            }
        }
    }

    pa_sink_put(u->sink);

    free(ports);
    pa_modargs_free(ma);

    return 0;

fail:
    if (ma)
        pa_modargs_free(ma);

    free(ports);

    pa__done(m);

    return -1;
}
Example #9
0
int pa__init(pa_module*m) {
    struct userdata *u;
    pa_modargs *ma = NULL;
    const char *dst_addr;
    const char *src_addr;
    uint32_t port = DEFAULT_PORT, mtu;
    uint32_t ttl = DEFAULT_TTL;
    sa_family_t af;
    int fd = -1, sap_fd = -1;
    pa_source *s;
    pa_sample_spec ss;
    pa_channel_map cm;
    struct sockaddr_in dst_sa4, dst_sap_sa4, src_sa4, src_sap_sa4;
#ifdef HAVE_IPV6
    struct sockaddr_in6 dst_sa6, dst_sap_sa6, src_sa6, src_sap_sa6;
#endif
    struct sockaddr_storage sa_dst;
    pa_source_output *o = NULL;
    uint8_t payload;
    char *p;
    int r, j;
    socklen_t k;
    char hn[128], *n;
    bool loop = false;
    enum inhibit_auto_suspend inhibit_auto_suspend = INHIBIT_AUTO_SUSPEND_ONLY_WITH_NON_MONITOR_SOURCES;
    const char *inhibit_auto_suspend_str;
    pa_source_output_new_data data;

    pa_assert(m);

    if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
        pa_log("Failed to parse module arguments");
        goto fail;
    }

    if (!(s = pa_namereg_get(m->core, pa_modargs_get_value(ma, "source", NULL), PA_NAMEREG_SOURCE))) {
        pa_log("Source does not exist.");
        goto fail;
    }

    if (pa_modargs_get_value_boolean(ma, "loop", &loop) < 0) {
        pa_log("Failed to parse \"loop\" parameter.");
        goto fail;
    }

    if ((inhibit_auto_suspend_str = pa_modargs_get_value(ma, "inhibit_auto_suspend", NULL))) {
        if (pa_streq(inhibit_auto_suspend_str, "always"))
            inhibit_auto_suspend = INHIBIT_AUTO_SUSPEND_ALWAYS;
        else if (pa_streq(inhibit_auto_suspend_str, "never"))
            inhibit_auto_suspend = INHIBIT_AUTO_SUSPEND_NEVER;
        else if (pa_streq(inhibit_auto_suspend_str, "only_with_non_monitor_sources"))
            inhibit_auto_suspend = INHIBIT_AUTO_SUSPEND_ONLY_WITH_NON_MONITOR_SOURCES;
        else {
            pa_log("Failed to parse the \"inhibit_auto_suspend\" parameter.");
            goto fail;
        }
    }

    ss = s->sample_spec;
    pa_rtp_sample_spec_fixup(&ss);
    cm = s->channel_map;
    if (pa_modargs_get_sample_spec(ma, &ss) < 0) {
        pa_log("Failed to parse sample specification");
        goto fail;
    }

    if (!pa_rtp_sample_spec_valid(&ss)) {
        pa_log("Specified sample type not compatible with RTP");
        goto fail;
    }

    if (ss.channels != cm.channels)
        pa_channel_map_init_auto(&cm, ss.channels, PA_CHANNEL_MAP_AIFF);

    payload = pa_rtp_payload_from_sample_spec(&ss);

    mtu = (uint32_t) pa_frame_align(DEFAULT_MTU, &ss);

    if (pa_modargs_get_value_u32(ma, "mtu", &mtu) < 0 || mtu < 1 || mtu % pa_frame_size(&ss) != 0) {
        pa_log("Invalid MTU.");
        goto fail;
    }

    port = DEFAULT_PORT + ((uint32_t) (rand() % 512) << 1);
    if (pa_modargs_get_value_u32(ma, "port", &port) < 0 || port < 1 || port > 0xFFFF) {
        pa_log("port= expects a numerical argument between 1 and 65535.");
        goto fail;
    }

    if (port & 1)
        pa_log_warn("Port number not even as suggested in RFC3550!");

    if (pa_modargs_get_value_u32(ma, "ttl", &ttl) < 0 || ttl < 1 || ttl > 0xFF) {
        pa_log("ttl= expects a numerical argument between 1 and 255.");
        goto fail;
    }

    src_addr = pa_modargs_get_value(ma, "source_ip", DEFAULT_SOURCE_IP);

    if (inet_pton(AF_INET, src_addr, &src_sa4.sin_addr) > 0) {
        src_sa4.sin_family = af = AF_INET;
        src_sa4.sin_port = htons(0);
        memset(&src_sa4.sin_zero, 0, sizeof(src_sa4.sin_zero));
        src_sap_sa4 = src_sa4;
#ifdef HAVE_IPV6
    } else if (inet_pton(AF_INET6, src_addr, &src_sa6.sin6_addr) > 0) {
        src_sa6.sin6_family = af = AF_INET6;
        src_sa6.sin6_port = htons(0);
        src_sa6.sin6_flowinfo = 0;
        src_sa6.sin6_scope_id = 0;
        src_sap_sa6 = src_sa6;
#endif
    } else {
        pa_log("Invalid source address '%s'", src_addr);
        goto fail;
    }

    dst_addr = pa_modargs_get_value(ma, "destination", NULL);
    if (dst_addr == NULL)
        dst_addr = pa_modargs_get_value(ma, "destination_ip", DEFAULT_DESTINATION_IP);

    if (inet_pton(AF_INET, dst_addr, &dst_sa4.sin_addr) > 0) {
        dst_sa4.sin_family = af = AF_INET;
        dst_sa4.sin_port = htons((uint16_t) port);
        memset(&dst_sa4.sin_zero, 0, sizeof(dst_sa4.sin_zero));
        dst_sap_sa4 = dst_sa4;
        dst_sap_sa4.sin_port = htons(SAP_PORT);
#ifdef HAVE_IPV6
    } else if (inet_pton(AF_INET6, dst_addr, &dst_sa6.sin6_addr) > 0) {
        dst_sa6.sin6_family = af = AF_INET6;
        dst_sa6.sin6_port = htons((uint16_t) port);
        dst_sa6.sin6_flowinfo = 0;
        dst_sa6.sin6_scope_id = 0;
        dst_sap_sa6 = dst_sa6;
        dst_sap_sa6.sin6_port = htons(SAP_PORT);
#endif
    } else {
        pa_log("Invalid destination '%s'", dst_addr);
        goto fail;
    }

    if ((fd = pa_socket_cloexec(af, SOCK_DGRAM, 0)) < 0) {
        pa_log("socket() failed: %s", pa_cstrerror(errno));
        goto fail;
    }

    if (af == AF_INET && bind(fd, (struct sockaddr*) &src_sa4, sizeof(src_sa4)) < 0) {
        pa_log("bind() failed: %s", pa_cstrerror(errno));
        goto fail;
#ifdef HAVE_IPV6
    } else if (af == AF_INET6 && bind(fd, (struct sockaddr*) &src_sa6, sizeof(src_sa6)) < 0) {
        pa_log("bind() failed: %s", pa_cstrerror(errno));
        goto fail;
#endif
    }

    if (af == AF_INET && connect(fd, (struct sockaddr*) &dst_sa4, sizeof(dst_sa4)) < 0) {
        pa_log("connect() failed: %s", pa_cstrerror(errno));
        goto fail;
#ifdef HAVE_IPV6
    } else if (af == AF_INET6 && connect(fd, (struct sockaddr*) &dst_sa6, sizeof(dst_sa6)) < 0) {
        pa_log("connect() failed: %s", pa_cstrerror(errno));
        goto fail;
#endif
    }

    if ((sap_fd = pa_socket_cloexec(af, SOCK_DGRAM, 0)) < 0) {
        pa_log("socket() failed: %s", pa_cstrerror(errno));
        goto fail;
    }

    if (af == AF_INET && bind(sap_fd, (struct sockaddr*) &src_sap_sa4, sizeof(src_sap_sa4)) < 0) {
        pa_log("bind() failed: %s", pa_cstrerror(errno));
        goto fail;
#ifdef HAVE_IPV6
    } else if (af == AF_INET6 && bind(sap_fd, (struct sockaddr*) &src_sap_sa6, sizeof(src_sap_sa6)) < 0) {
        pa_log("bind() failed: %s", pa_cstrerror(errno));
        goto fail;
#endif
    }

    if (af == AF_INET && connect(sap_fd, (struct sockaddr*) &dst_sap_sa4, sizeof(dst_sap_sa4)) < 0) {
        pa_log("connect() failed: %s", pa_cstrerror(errno));
        goto fail;
#ifdef HAVE_IPV6
    } else if (af == AF_INET6 && connect(sap_fd, (struct sockaddr*) &dst_sap_sa6, sizeof(dst_sap_sa6)) < 0) {
        pa_log("connect() failed: %s", pa_cstrerror(errno));
        goto fail;
#endif
    }

    j = loop;
    if (setsockopt(fd, IPPROTO_IP, IP_MULTICAST_LOOP, &j, sizeof(j)) < 0 ||
        setsockopt(sap_fd, IPPROTO_IP, IP_MULTICAST_LOOP, &j, sizeof(j)) < 0) {
        pa_log("IP_MULTICAST_LOOP failed: %s", pa_cstrerror(errno));
        goto fail;
    }

    if (ttl != DEFAULT_TTL) {
        int _ttl = (int) ttl;

        if (setsockopt(fd, IPPROTO_IP, IP_MULTICAST_TTL, &_ttl, sizeof(_ttl)) < 0) {
            pa_log("IP_MULTICAST_TTL failed: %s", pa_cstrerror(errno));
            goto fail;
        }

        if (setsockopt(sap_fd, IPPROTO_IP, IP_MULTICAST_TTL, &_ttl, sizeof(_ttl)) < 0) {
            pa_log("IP_MULTICAST_TTL (sap) failed: %s", pa_cstrerror(errno));
            goto fail;
        }
    }

    /* If the socket queue is full, let's drop packets */
    pa_make_fd_nonblock(fd);
    pa_make_udp_socket_low_delay(fd);

    pa_source_output_new_data_init(&data);
    pa_proplist_sets(data.proplist, PA_PROP_MEDIA_NAME, "RTP Monitor Stream");
    pa_proplist_sets(data.proplist, "rtp.source", src_addr);
    pa_proplist_sets(data.proplist, "rtp.destination", dst_addr);
    pa_proplist_setf(data.proplist, "rtp.mtu", "%lu", (unsigned long) mtu);
    pa_proplist_setf(data.proplist, "rtp.port", "%lu", (unsigned long) port);
    pa_proplist_setf(data.proplist, "rtp.ttl", "%lu", (unsigned long) ttl);
    data.driver = __FILE__;
    data.module = m;
    pa_source_output_new_data_set_source(&data, s, false, true);
    pa_source_output_new_data_set_sample_spec(&data, &ss);
    pa_source_output_new_data_set_channel_map(&data, &cm);
    data.flags |= get_dont_inhibit_auto_suspend_flag(s, inhibit_auto_suspend);

    pa_source_output_new(&o, m->core, &data);
    pa_source_output_new_data_done(&data);

    if (!o) {
        pa_log("failed to create source output.");
        goto fail;
    }

    o->parent.process_msg = source_output_process_msg;
    o->push = source_output_push_cb;
    o->moving = source_output_moving_cb;
    o->kill = source_output_kill_cb;

    pa_log_info("Configured source latency of %llu ms.",
                (unsigned long long) pa_source_output_set_requested_latency(o, pa_bytes_to_usec(mtu, &o->sample_spec)) / PA_USEC_PER_MSEC);

    m->userdata = o->userdata = u = pa_xnew(struct userdata, 1);
    u->module = m;
    u->source_output = o;

    u->memblockq = pa_memblockq_new(
            "module-rtp-send memblockq",
            0,
            MEMBLOCKQ_MAXLENGTH,
            MEMBLOCKQ_MAXLENGTH,
            &ss,
            1,
            0,
            0,
            NULL);

    u->mtu = mtu;

    k = sizeof(sa_dst);
    pa_assert_se((r = getsockname(fd, (struct sockaddr*) &sa_dst, &k)) >= 0);

    n = pa_xstrdup(pa_modargs_get_value(ma, "stream_name", NULL));
    if (n == NULL)
        n = pa_sprintf_malloc("PulseAudio RTP Stream on %s", pa_get_fqdn(hn, sizeof(hn)));

    if (af == AF_INET) {
        p = pa_sdp_build(af,
                     (void*) &((struct sockaddr_in*) &sa_dst)->sin_addr,
                     (void*) &dst_sa4.sin_addr,
                     n, (uint16_t) port, payload, &ss);
#ifdef HAVE_IPV6
    } else {
        p = pa_sdp_build(af,
                     (void*) &((struct sockaddr_in6*) &sa_dst)->sin6_addr,
                     (void*) &dst_sa6.sin6_addr,
                     n, (uint16_t) port, payload, &ss);
#endif
    }

    pa_xfree(n);

    pa_rtp_context_init_send(&u->rtp_context, fd, m->core->cookie, payload, pa_frame_size(&ss));
    pa_sap_context_init_send(&u->sap_context, sap_fd, p);

    pa_log_info("RTP stream initialized with mtu %u on %s:%u from %s ttl=%u, SSRC=0x%08x, payload=%u, initial sequence #%u", mtu, dst_addr, port, src_addr, ttl, u->rtp_context.ssrc, payload, u->rtp_context.sequence);
    pa_log_info("SDP-Data:\n%s\nEOF", p);

    pa_sap_send(&u->sap_context, 0);

    u->sap_event = pa_core_rttime_new(m->core, pa_rtclock_now() + SAP_INTERVAL, sap_event_cb, u);
    u->inhibit_auto_suspend = inhibit_auto_suspend;

    pa_source_output_put(u->source_output);

    pa_modargs_free(ma);

    return 0;

fail:
    if (ma)
        pa_modargs_free(ma);

    if (fd >= 0)
        pa_close(fd);

    if (sap_fd >= 0)
        pa_close(sap_fd);

    return -1;
}
int pa__init(pa_module*m) {

    pa_modargs *ma = NULL;
    struct userdata *u;
    int version;
    struct input_id input_id;
    char name[256];
    uint8_t evtype_bitmask[EV_MAX/8 + 1];
    pa_volume_t volume_limit = PA_VOLUME_NORM*3/2;
    pa_volume_t volume_step = PA_VOLUME_NORM/20;

    pa_assert(m);

    if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
        pa_log("Failed to parse module arguments");
        goto fail;
    }

    if (pa_modargs_get_value_u32(ma, "volume_limit", &volume_limit) < 0) {
        pa_log("Failed to parse volume limit");
        goto fail;
    }

    if (pa_modargs_get_value_u32(ma, "volume_step", &volume_step) < 0) {
        pa_log("Failed to parse volume step");
        goto fail;
    }

    m->userdata = u = pa_xnew(struct userdata, 1);
    u->module = m;
    u->io = NULL;
    u->sink_name = pa_xstrdup(pa_modargs_get_value(ma, "sink", NULL));
    u->fd = -1;
    u->fd_type = 0;
    u->volume_limit = PA_CLAMP_VOLUME(volume_limit);
    u->volume_step = PA_CLAMP_VOLUME(volume_step);

    if ((u->fd = pa_open_cloexec(pa_modargs_get_value(ma, "device", DEFAULT_DEVICE), O_RDONLY, 0)) < 0) {
        pa_log("Failed to open evdev device: %s", pa_cstrerror(errno));
        goto fail;
    }

    if (ioctl(u->fd, EVIOCGVERSION, &version) < 0) {
        pa_log("EVIOCGVERSION failed: %s", pa_cstrerror(errno));
        goto fail;
    }

    pa_log_info("evdev driver version %i.%i.%i", version >> 16, (version >> 8) & 0xff, version & 0xff);

    if (ioctl(u->fd, EVIOCGID, &input_id)) {
        pa_log("EVIOCGID failed: %s", pa_cstrerror(errno));
        goto fail;
    }

    pa_log_info("evdev vendor 0x%04hx product 0x%04hx version 0x%04hx bustype %u",
                input_id.vendor, input_id.product, input_id.version, input_id.bustype);

    memset(name, 0, sizeof(name));
    if (ioctl(u->fd, EVIOCGNAME(sizeof(name)), name) < 0) {
        pa_log("EVIOCGNAME failed: %s", pa_cstrerror(errno));
        goto fail;
    }

    pa_log_info("evdev device name: %s", name);

    memset(evtype_bitmask, 0, sizeof(evtype_bitmask));
    if (ioctl(u->fd, EVIOCGBIT(0, EV_MAX), evtype_bitmask) < 0) {
        pa_log("EVIOCGBIT failed: %s", pa_cstrerror(errno));
        goto fail;
    }

    if (!test_bit(EV_KEY, evtype_bitmask)) {
        pa_log("Device has no keys.");
        goto fail;
    }

    u->io = m->core->mainloop->io_new(m->core->mainloop, u->fd, PA_IO_EVENT_INPUT|PA_IO_EVENT_HANGUP, io_callback, u);

    pa_modargs_free(ma);

    return 0;

fail:

    if (ma)
        pa_modargs_free(ma);

    pa__done(m);
    return -1;
}
Example #11
0
int pa__init(pa_module*m) {
    pa_modargs *ma = NULL;
    struct userdata *u;
    pa_sink *sink;
    pa_sample_spec ss;
    uint32_t frequency;
    pa_sink_input_new_data data;

    if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
        pa_log("Failed to parse module arguments");
        goto fail;
    }

    if (!(sink = pa_namereg_get(m->core, pa_modargs_get_value(ma, "sink", NULL), PA_NAMEREG_SINK))) {
        pa_log("No such sink.");
        goto fail;
    }

    ss.format = PA_SAMPLE_FLOAT32;
    ss.rate = sink->sample_spec.rate;
    ss.channels = 1;

    frequency = 440;
    if (pa_modargs_get_value_u32(ma, "frequency", &frequency) < 0 || frequency < 1 || frequency > ss.rate/2) {
        pa_log("Invalid frequency specification");
        goto fail;
    }

    m->userdata = u = pa_xnew0(struct userdata, 1);
    u->core = m->core;
    u->module = m;
    u->sink_input = NULL;

    u->peek_index = 0;
    pa_memchunk_sine(&u->memchunk, m->core->mempool, ss.rate, frequency);

    pa_sink_input_new_data_init(&data);
    data.driver = __FILE__;
    data.module = m;
    pa_sink_input_new_data_set_sink(&data, sink, false);
    pa_proplist_setf(data.proplist, PA_PROP_MEDIA_NAME, "%u Hz Sine", frequency);
    pa_proplist_sets(data.proplist, PA_PROP_MEDIA_ROLE, "abstract");
    pa_proplist_setf(data.proplist, "sine.hz", "%u", frequency);
    pa_sink_input_new_data_set_sample_spec(&data, &ss);

    pa_sink_input_new(&u->sink_input, m->core, &data);
    pa_sink_input_new_data_done(&data);

    if (!u->sink_input)
        goto fail;

    u->sink_input->pop = sink_input_pop_cb;
    u->sink_input->process_rewind = sink_input_process_rewind_cb;
    u->sink_input->kill = sink_input_kill_cb;
    u->sink_input->state_change = sink_input_state_change_cb;
    u->sink_input->userdata = u;

    pa_sink_input_put(u->sink_input);

    pa_modargs_free(ma);
    return 0;

fail:
    if (ma)
        pa_modargs_free(ma);

    pa__done(m);
    return -1;
}
Example #12
0
pa_source *pa_droid_source_new(pa_module *m,
                                 pa_modargs *ma,
                                 const char *driver,
                                 pa_droid_card_data *card_data,
                                 pa_droid_mapping *am,
                                 pa_card *card) {

    struct userdata *u = NULL;
    char *thread_name = NULL;
    pa_source_new_data data;
    const char *module_id = NULL;
    /* const char *tmp; */
    uint32_t sample_rate;
    uint32_t alternate_sample_rate;
    audio_devices_t dev_in;
    pa_sample_spec sample_spec;
    pa_channel_map channel_map;
    bool namereg_fail = false;
    pa_droid_config_audio *config = NULL; /* Only used when source is created without card */
    uint32_t source_buffer = 0;
    char audio_source[32];
    int ret;

    audio_format_t hal_audio_format = 0;
    audio_channel_mask_t hal_channel_mask = 0;

    pa_assert(m);
    pa_assert(ma);
    pa_assert(driver);

    /* When running under card use hw module name for source by default. */
    if (card && ma)
        module_id = am->input->module->name;
    else
        module_id = pa_modargs_get_value(ma, "module_id", DEFAULT_MODULE_ID);

    sample_spec = m->core->default_sample_spec;
    channel_map = m->core->default_channel_map;

    if (pa_modargs_get_sample_spec_and_channel_map(ma, &sample_spec, &channel_map, PA_CHANNEL_MAP_AIFF) < 0) {
        pa_log("Failed to parse sample specification and channel map.");
        goto fail;
    }

    alternate_sample_rate = m->core->alternate_sample_rate;
    if (pa_modargs_get_alternate_sample_rate(ma, &alternate_sample_rate) < 0) {
        pa_log("Failed to parse alternate sample rate.");
        goto fail;
    }

    if (pa_modargs_get_value_u32(ma, "source_buffer", &source_buffer) < 0) {
        pa_log("Failed to parse source_buffer. Needs to be integer >= 0.");
        goto fail;
    }

    u = pa_xnew0(struct userdata, 1);
    u->core = m->core;
    u->module = m;
    u->card = card;
    u->rtpoll = pa_rtpoll_new();
    pa_thread_mq_init(&u->thread_mq, m->core->mainloop, u->rtpoll);

    /* Enabled routing changes by default. */
    u->routing_changes_enabled = true;

    if (card_data) {
        pa_assert(card);
        u->card_data = card_data;
        pa_assert_se((u->hw_module = pa_droid_hw_module_get(u->core, NULL, card_data->module_id)));
    } else {
        /* Stand-alone source */

        if (!(config = pa_droid_config_load(ma)))
            goto fail;

        /* Ownership of config transfers to hw_module if opening of hw module succeeds. */
        if (!(u->hw_module = pa_droid_hw_module_get(u->core, config, module_id)))
            goto fail;
    }

    if (!pa_convert_format(sample_spec.format, CONV_FROM_PA, &hal_audio_format)) {
        pa_log("Sample spec format %u not supported.", sample_spec.format);
        goto fail;
    }

    for (int i = 0; i < channel_map.channels; i++) {
        audio_channel_mask_t c;
        if (!pa_convert_input_channel(channel_map.map[i], CONV_FROM_PA, &c)) {
            pa_log("Failed to convert channel map.");
            goto fail;
        }
        hal_channel_mask |= c;
    }

    struct audio_config config_in = {
        .sample_rate = sample_spec.rate,
        .channel_mask = hal_channel_mask,
        .format = hal_audio_format
    };

    /* Default routing */
    /* FIXME So while setting routing through stream with HALv2 API fails, creation of stream
     * requires HALv2 style device to work properly. So until that oddity is resolved we always
     * set AUDIO_DEVICE_IN_BUILTIN_MIC as initial device here. */
#if 0
    pa_assert_se(pa_string_convert_input_device_str_to_num("AUDIO_DEVICE_IN_BUILTIN_MIC", &dev_in));

    if ((tmp = pa_modargs_get_value(ma, "input_devices", NULL))) {
        audio_devices_t tmp_dev;

        if (parse_device_list(tmp, &tmp_dev) && tmp_dev)
            dev_in = tmp_dev;

        pa_log_debug("Set initial devices %s", tmp);
    }
#else
    pa_log_info("FIXME: Setting AUDIO_DEVICE_IN_BUILTIN_MIC as initial device.");
    dev_in = AUDIO_DEVICE_IN_BUILTIN_MIC;
#endif
    pa_droid_hw_module_lock(u->hw_module);
    ret = u->hw_module->device->open_input_stream(u->hw_module->device,
                                                  u->hw_module->stream_in_id,
                                                  dev_in,
                                                  &config_in,
                                                  &u->stream);
    /* On some devices the first call will fail if the config parameters are
     * not supported, but it'll automatically set the right ones, expecting
     * the caller to call it again, so let's try at least one more time */
    if (!u->stream)
        ret = u->hw_module->device->open_input_stream(u->hw_module->device,
                                                      u->hw_module->stream_in_id,
                                                      dev_in,
                                                      &config_in,
                                                      &u->stream);

    u->hw_module->stream_in_id++;
    pa_droid_hw_module_unlock(u->hw_module);

    if (ret < 0) {
        pa_log("Failed to open input stream.");
        goto fail;
    }

    if ((sample_rate = u->stream->common.get_sample_rate(&u->stream->common)) != sample_spec.rate) {
        pa_log_warn("Requested sample rate %u but got %u instead.", sample_spec.rate, sample_rate);
        sample_spec.rate = sample_rate;
    }

    u->buffer_size = u->stream->common.get_buffer_size(&u->stream->common);
    if (source_buffer) {
        if (source_buffer < u->buffer_size)
            pa_log_warn("Requested buffer size %u less than HAL reported buffer size (%u).", source_buffer, u->buffer_size);
        else if (source_buffer % u->buffer_size) {
            uint32_t trunc = (source_buffer / u->buffer_size) * u->buffer_size;
            pa_log_warn("Requested buffer size %u not multiple of HAL buffer size (%u). Using buffer size %u", source_buffer, u->buffer_size, trunc);
            u->buffer_size = trunc;
        } else {
            pa_log_info("Using requested buffer size %u.", source_buffer);
            u->buffer_size = source_buffer;
        }
    }

    pa_log_info("Created Android stream with device: %u sample rate: %u channel mask: %u format: %u buffer size: %u",
            dev_in,
            sample_rate,
            config_in.channel_mask,
            config_in.format,
            u->buffer_size);

    /* Setting audio source to MIC by default */
    pa_snprintf(audio_source, sizeof(audio_source), "%s=%u", AUDIO_PARAMETER_STREAM_INPUT_SOURCE, AUDIO_SOURCE_MIC);
    u->stream->common.set_parameters(&u->stream->common, audio_source);
    pa_log_debug("Setting audio source to AUDIO_SOURCE_MIC by default");

    pa_source_new_data_init(&data);
    data.driver = driver;
    data.module = m;
    data.card = card;

    source_set_name(ma, &data, module_id);

    /* We need to give pa_modargs_get_value_boolean() a pointer to a local
     * variable instead of using &data.namereg_fail directly, because
     * data.namereg_fail is a bitfield and taking the address of a bitfield
     * variable is impossible. */
    namereg_fail = data.namereg_fail;
    if (pa_modargs_get_value_boolean(ma, "namereg_fail", &namereg_fail) < 0) {
        pa_log("Failed to parse namereg_fail argument.");
        pa_source_new_data_done(&data);
        goto fail;
    }
    data.namereg_fail = namereg_fail;

    pa_source_new_data_set_sample_spec(&data, &sample_spec);
    pa_source_new_data_set_channel_map(&data, &channel_map);
    pa_source_new_data_set_alternate_sample_rate(&data, alternate_sample_rate);

    if (am)
        pa_droid_add_ports(data.ports, am, card);

    u->source = pa_source_new(m->core, &data, PA_SOURCE_HARDWARE);
    pa_source_new_data_done(&data);

    if (!u->source) {
        pa_log("Failed to create source.");
        goto fail;
    }

    u->source->userdata = u;

    u->source->parent.process_msg = source_process_msg;

    source_set_mute_control(u);

    u->source->set_port = source_set_port_cb;

    pa_source_set_asyncmsgq(u->source, u->thread_mq.inq);
    pa_source_set_rtpoll(u->source, u->rtpoll);

    /* Disable rewind for droid source */
    pa_source_set_max_rewind(u->source, 0);

    thread_name = pa_sprintf_malloc("droid-source-%s", module_id);
    if (!(u->thread = pa_thread_new(thread_name, thread_func, u))) {
        pa_log("Failed to create thread.");
        goto fail;
    }
    pa_xfree(thread_name);
    thread_name = NULL;

    pa_source_set_fixed_latency(u->source, pa_bytes_to_usec(u->buffer_size, &sample_spec));
    pa_log_debug("Set fixed latency %" PRIu64 " usec", pa_bytes_to_usec(u->buffer_size, &sample_spec));

    if (u->source->active_port)
        source_set_port_cb(u->source, u->source->active_port);

    pa_source_put(u->source);

    return u->source;

fail:
    pa_xfree(thread_name);

    if (config)
        pa_xfree(config);

    if (u)
        userdata_free(u);

    return NULL;
}

void pa_droid_source_free(pa_source *s) {
    struct userdata *u;

    pa_source_assert_ref(s);
    pa_assert_se(u = s->userdata);

    userdata_free(u);
}

static void userdata_free(struct userdata *u) {

    if (u->source)
        pa_source_unlink(u->source);

    if (u->thread) {
        pa_asyncmsgq_send(u->thread_mq.inq, NULL, PA_MESSAGE_SHUTDOWN, NULL, 0, NULL);
        pa_thread_free(u->thread);
    }

    pa_thread_mq_done(&u->thread_mq);

    if (u->source)
        pa_source_unref(u->source);

    if (u->memchunk.memblock)
        pa_memblock_unref(u->memchunk.memblock);

    if (u->hw_module && u->stream) {
        pa_droid_hw_module_lock(u->hw_module);
        u->hw_module->device->close_input_stream(u->hw_module->device, u->stream);
        pa_droid_hw_module_unlock(u->hw_module);
    }

    // Stand alone source
    if (u->hw_module)
        pa_droid_hw_module_unref(u->hw_module);

    pa_xfree(u);
}
int pa__init(pa_module*m) {
    struct userdata *u = NULL;
    pa_sample_spec ss;
    pa_channel_map map;
    pa_modargs *ma = NULL;
    pa_source_new_data data;
    uint32_t latency_time = DEFAULT_LATENCY_TIME;

    pa_assert(m);

    if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
        pa_log("Failed to parse module arguments.");
        goto fail;
    }

    ss = m->core->default_sample_spec;
    map = m->core->default_channel_map;
    if (pa_modargs_get_sample_spec_and_channel_map(ma, &ss, &map, PA_CHANNEL_MAP_DEFAULT) < 0) {
        pa_log("Invalid sample format specification or channel map");
        goto fail;
    }

    m->userdata = u = pa_xnew0(struct userdata, 1);
    u->core = m->core;
    u->module = m;
    u->rtpoll = pa_rtpoll_new();
    pa_thread_mq_init(&u->thread_mq, m->core->mainloop, u->rtpoll);

    pa_source_new_data_init(&data);
    data.driver = __FILE__;
    data.module = m;
    pa_source_new_data_set_name(&data, pa_modargs_get_value(ma, "source_name", DEFAULT_SOURCE_NAME));
    pa_source_new_data_set_sample_spec(&data, &ss);
    pa_source_new_data_set_channel_map(&data, &map);
    pa_proplist_sets(data.proplist, PA_PROP_DEVICE_DESCRIPTION, pa_modargs_get_value(ma, "description", "Null Input"));
    pa_proplist_sets(data.proplist, PA_PROP_DEVICE_CLASS, "abstract");

    u->source = pa_source_new(m->core, &data, PA_SOURCE_LATENCY | PA_SOURCE_DYNAMIC_LATENCY);
    pa_source_new_data_done(&data);

    if (!u->source) {
        pa_log("Failed to create source object.");
        goto fail;
    }

    u->latency_time = DEFAULT_LATENCY_TIME;
    if (pa_modargs_get_value_u32(ma, "latency_time", &latency_time) < 0) {
        pa_log("Failed to parse latency_time value.");
        goto fail;
    }
    u->latency_time = latency_time;

    u->source->parent.process_msg = source_process_msg;
    u->source->update_requested_latency = source_update_requested_latency_cb;
    u->source->userdata = u;

    pa_source_set_asyncmsgq(u->source, u->thread_mq.inq);
    pa_source_set_rtpoll(u->source, u->rtpoll);

    pa_source_set_latency_range(u->source, 0, MAX_LATENCY_USEC);
    u->block_usec = u->source->thread_info.max_latency;

    u->source->thread_info.max_rewind =
        pa_usec_to_bytes(u->block_usec, &u->source->sample_spec);

    if (!(u->thread = pa_thread_new("null-source", thread_func, u))) {
        pa_log("Failed to create thread.");
        goto fail;
    }

    pa_source_put(u->source);

    pa_modargs_free(ma);

    return 0;

fail:
    if (ma)
        pa_modargs_free(ma);

    pa__done(m);

    return -1;
}
int pa__init(pa_module*m) {
    pa_modargs *ma = NULL;
    struct userdata *u = NULL;

#if defined(USE_TCP_SOCKETS)
    uint32_t port = IPV4_PORT;
    pa_bool_t port_fallback = TRUE;
    const char *listen_on;
#else
    int r;
#endif

#if defined(USE_PROTOCOL_NATIVE) || defined(USE_PROTOCOL_HTTP)
    char t[256];
#endif

    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_xnew0(struct userdata, 1);
    u->module = m;

#if defined(USE_PROTOCOL_SIMPLE)
    u->simple_protocol = pa_simple_protocol_get(m->core);

    u->simple_options = pa_simple_options_new();
    if (pa_simple_options_parse(u->simple_options, m->core, ma) < 0)
        goto fail;
    u->simple_options->module = m;
#elif defined(USE_PROTOCOL_CLI)
    u->cli_protocol = pa_cli_protocol_get(m->core);
#elif defined(USE_PROTOCOL_HTTP)
    u->http_protocol = pa_http_protocol_get(m->core);
#elif defined(USE_PROTOCOL_NATIVE)
    u->native_protocol = pa_native_protocol_get(m->core);

    u->native_options = pa_native_options_new();
    if (pa_native_options_parse(u->native_options, m->core, ma) < 0)
        goto fail;
    u->native_options->module = m;
#else
    u->esound_protocol = pa_esound_protocol_get(m->core);

    u->esound_options = pa_esound_options_new();
    if (pa_esound_options_parse(u->esound_options, m->core, ma) < 0)
        goto fail;
    u->esound_options->module = m;
#endif

#if defined(USE_TCP_SOCKETS)

    if (pa_in_system_mode() || pa_modargs_get_value(ma, "port", NULL))
        port_fallback = FALSE;

    if (pa_modargs_get_value_u32(ma, "port", &port) < 0 || port < 1 || port > 0xFFFF) {
        pa_log("port= expects a numerical argument between 1 and 65535.");
        goto fail;
    }

    listen_on = pa_modargs_get_value(ma, "listen", NULL);

    if (listen_on) {
#  ifdef HAVE_IPV6
        u->socket_server_ipv6 = pa_socket_server_new_ipv6_string(m->core->mainloop, listen_on, (uint16_t) port, port_fallback, TCPWRAP_SERVICE);
#  endif
        u->socket_server_ipv4 = pa_socket_server_new_ipv4_string(m->core->mainloop, listen_on, (uint16_t) port, port_fallback, TCPWRAP_SERVICE);
    } else {
#  ifdef HAVE_IPV6
        u->socket_server_ipv6 = pa_socket_server_new_ipv6_any(m->core->mainloop, (uint16_t) port, port_fallback, TCPWRAP_SERVICE);
#  endif
        u->socket_server_ipv4 = pa_socket_server_new_ipv4_any(m->core->mainloop, (uint16_t) port, port_fallback, TCPWRAP_SERVICE);
    }

#  ifdef HAVE_IPV6
    if (!u->socket_server_ipv4 && !u->socket_server_ipv6)
#  else
    if (!u->socket_server_ipv4)
#  endif
        goto fail;

    if (u->socket_server_ipv4)
        pa_socket_server_set_callback(u->socket_server_ipv4, socket_server_on_connection_cb, u);
#  ifdef HAVE_IPV6
    if (u->socket_server_ipv6)
        pa_socket_server_set_callback(u->socket_server_ipv6, socket_server_on_connection_cb, u);
#  endif

#else

#  if defined(USE_PROTOCOL_ESOUND)

#    if defined(USE_PER_USER_ESOUND_SOCKET)
    u->socket_path = pa_sprintf_malloc("/tmp/.esd-%lu/socket", (unsigned long) getuid());
#    else
    u->socket_path = pa_xstrdup("/tmp/.esd/socket");
#    endif

    /* This socket doesn't reside in our own runtime dir but in
     * /tmp/.esd/, hence we have to create the dir first */

    if (pa_make_secure_parent_dir(u->socket_path, pa_in_system_mode() ? 0755U : 0700U, (uid_t)-1, (gid_t)-1) < 0) {
        pa_log("Failed to create socket directory '%s': %s\n", u->socket_path, pa_cstrerror(errno));
        goto fail;
    }

#  else
    if (!(u->socket_path = pa_runtime_path(pa_modargs_get_value(ma, "socket", UNIX_SOCKET)))) {
        pa_log("Failed to generate socket path.");
        goto fail;
    }
#  endif

    if ((r = pa_unix_socket_remove_stale(u->socket_path)) < 0) {
        pa_log("Failed to remove stale UNIX socket '%s': %s", u->socket_path, pa_cstrerror(errno));
        goto fail;
    } else if (r > 0)
        pa_log_info("Removed stale UNIX socket '%s'.", u->socket_path);

    if (!(u->socket_server_unix = pa_socket_server_new_unix(m->core->mainloop, u->socket_path)))
        goto fail;

    pa_socket_server_set_callback(u->socket_server_unix, socket_server_on_connection_cb, u);

#endif

#if defined(USE_PROTOCOL_NATIVE)
#  if defined(USE_TCP_SOCKETS)
    if (u->socket_server_ipv4)
        if (pa_socket_server_get_address(u->socket_server_ipv4, t, sizeof(t)))
            pa_native_protocol_add_server_string(u->native_protocol, t);

#    ifdef HAVE_IPV6
    if (u->socket_server_ipv6)
        if (pa_socket_server_get_address(u->socket_server_ipv6, t, sizeof(t)))
            pa_native_protocol_add_server_string(u->native_protocol, t);
#    endif
#  else
    if (pa_socket_server_get_address(u->socket_server_unix, t, sizeof(t)))
        pa_native_protocol_add_server_string(u->native_protocol, t);

#  endif
#endif

#if defined(USE_PROTOCOL_HTTP)
#if defined(USE_TCP_SOCKETS)
    if (u->socket_server_ipv4)
        if (pa_socket_server_get_address(u->socket_server_ipv4, t, sizeof(t)))
            pa_http_protocol_add_server_string(u->http_protocol, t);

#ifdef HAVE_IPV6
    if (u->socket_server_ipv6)
        if (pa_socket_server_get_address(u->socket_server_ipv6, t, sizeof(t)))
            pa_http_protocol_add_server_string(u->http_protocol, t);
#endif /* HAVE_IPV6 */
#else /* USE_TCP_SOCKETS */
    if (pa_socket_server_get_address(u->socket_server_unix, t, sizeof(t)))
        pa_http_protocol_add_server_string(u->http_protocol, t);

#endif /* USE_TCP_SOCKETS */
#endif /* USE_PROTOCOL_HTTP */

    if (ma)
        pa_modargs_free(ma);

    return 0;

fail:

    if (ma)
        pa_modargs_free(ma);

    pa__done(m);

    return -1;
}
Example #15
0
int pa__init(pa_module *m) {
    struct userdata *u = NULL;
    bool record = true, playback = true;
    pa_sample_spec ss;
    pa_channel_map map;
    pa_modargs *ma = NULL;
    uint32_t buffer_length_msec;
    int fd = -1;
    pa_sink_new_data sink_new_data;
    pa_source_new_data source_new_data;
    char const *name;
    char *name_buf;
    bool namereg_fail;

    pa_assert(m);

    if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
        pa_log("failed to parse module arguments.");
        goto fail;
    }

    if (pa_modargs_get_value_boolean(ma, "record", &record) < 0 || pa_modargs_get_value_boolean(ma, "playback", &playback) < 0) {
        pa_log("record= and playback= expect a boolean argument.");
        goto fail;
    }

    if (!playback && !record) {
        pa_log("neither playback nor record enabled for device.");
        goto fail;
    }

    u = pa_xnew0(struct userdata, 1);

    if (!(u->smoother = pa_smoother_new(PA_USEC_PER_SEC, PA_USEC_PER_SEC * 2, true, true, 10, pa_rtclock_now(), true)))
        goto fail;

    /*
     * For a process (or several processes) to use the same audio device for both
     * record and playback at the same time, the device's mixer must be enabled.
     * See mixerctl(1). It may be turned off for playback only or record only.
     */
    u->mode = (playback && record) ? O_RDWR : (playback ? O_WRONLY : (record ? O_RDONLY : 0));

    ss = m->core->default_sample_spec;
    if (pa_modargs_get_sample_spec_and_channel_map(ma, &ss, &map, PA_CHANNEL_MAP_DEFAULT) < 0) {
        pa_log("failed to parse sample specification");
        goto fail;
    }
    u->frame_size = pa_frame_size(&ss);

    u->minimum_request = pa_usec_to_bytes(PA_USEC_PER_SEC / MAX_RENDER_HZ, &ss);

    buffer_length_msec = 100;
    if (pa_modargs_get_value_u32(ma, "buffer_length", &buffer_length_msec) < 0) {
        pa_log("failed to parse buffer_length argument");
        goto fail;
    }
    u->buffer_size = pa_usec_to_bytes(1000 * buffer_length_msec, &ss);
    if (u->buffer_size < 2 * u->minimum_request) {
        pa_log("buffer_length argument cannot be smaller than %u",
               (unsigned)(pa_bytes_to_usec(2 * u->minimum_request, &ss) / 1000));
        goto fail;
    }
    if (u->buffer_size > MAX_BUFFER_SIZE) {
        pa_log("buffer_length argument cannot be greater than %u",
               (unsigned)(pa_bytes_to_usec(MAX_BUFFER_SIZE, &ss) / 1000));
        goto fail;
    }

    u->device_name = pa_xstrdup(pa_modargs_get_value(ma, "device", DEFAULT_DEVICE));

    if ((fd = open_audio_device(u, &ss)) < 0)
        goto fail;

    u->core = m->core;
    u->module = m;
    m->userdata = u;

    pa_memchunk_reset(&u->memchunk);

    u->rtpoll = pa_rtpoll_new();
    pa_thread_mq_init(&u->thread_mq, m->core->mainloop, u->rtpoll);

    u->rtpoll_item = NULL;
    build_pollfd(u);

    if (u->mode != O_WRONLY) {
        name_buf = NULL;
        namereg_fail = true;

        if (!(name = pa_modargs_get_value(ma, "source_name", NULL))) {
            name = name_buf = pa_sprintf_malloc("solaris_input.%s", pa_path_get_filename(u->device_name));
            namereg_fail = false;
        }

        pa_source_new_data_init(&source_new_data);
        source_new_data.driver = __FILE__;
        source_new_data.module = m;
        pa_source_new_data_set_name(&source_new_data, name);
        source_new_data.namereg_fail = namereg_fail;
        pa_source_new_data_set_sample_spec(&source_new_data, &ss);
        pa_source_new_data_set_channel_map(&source_new_data, &map);
        pa_proplist_sets(source_new_data.proplist, PA_PROP_DEVICE_STRING, u->device_name);
        pa_proplist_sets(source_new_data.proplist, PA_PROP_DEVICE_API, "solaris");
        pa_proplist_sets(source_new_data.proplist, PA_PROP_DEVICE_DESCRIPTION, "Solaris PCM source");
        pa_proplist_sets(source_new_data.proplist, PA_PROP_DEVICE_ACCESS_MODE, "serial");
        pa_proplist_setf(source_new_data.proplist, PA_PROP_DEVICE_BUFFERING_BUFFER_SIZE, "%lu", (unsigned long) u->buffer_size);

        if (pa_modargs_get_proplist(ma, "source_properties", source_new_data.proplist, PA_UPDATE_REPLACE) < 0) {
            pa_log("Invalid properties");
            pa_source_new_data_done(&source_new_data);
            goto fail;
        }

        u->source = pa_source_new(m->core, &source_new_data, PA_SOURCE_HARDWARE|PA_SOURCE_LATENCY);
        pa_source_new_data_done(&source_new_data);
        pa_xfree(name_buf);

        if (!u->source) {
            pa_log("Failed to create source object");
            goto fail;
        }

        u->source->userdata = u;
        u->source->parent.process_msg = source_process_msg;

        pa_source_set_asyncmsgq(u->source, u->thread_mq.inq);
        pa_source_set_rtpoll(u->source, u->rtpoll);
        pa_source_set_fixed_latency(u->source, pa_bytes_to_usec(u->buffer_size, &u->source->sample_spec));

        pa_source_set_get_volume_callback(u->source, source_get_volume);
        pa_source_set_set_volume_callback(u->source, source_set_volume);
        u->source->refresh_volume = true;
    } else
        u->source = NULL;

    if (u->mode != O_RDONLY) {
        name_buf = NULL;
        namereg_fail = true;
        if (!(name = pa_modargs_get_value(ma, "sink_name", NULL))) {
            name = name_buf = pa_sprintf_malloc("solaris_output.%s", pa_path_get_filename(u->device_name));
            namereg_fail = false;
        }

        pa_sink_new_data_init(&sink_new_data);
        sink_new_data.driver = __FILE__;
        sink_new_data.module = m;
        pa_sink_new_data_set_name(&sink_new_data, name);
        sink_new_data.namereg_fail = namereg_fail;
        pa_sink_new_data_set_sample_spec(&sink_new_data, &ss);
        pa_sink_new_data_set_channel_map(&sink_new_data, &map);
        pa_proplist_sets(sink_new_data.proplist, PA_PROP_DEVICE_STRING, u->device_name);
        pa_proplist_sets(sink_new_data.proplist, PA_PROP_DEVICE_API, "solaris");
        pa_proplist_sets(sink_new_data.proplist, PA_PROP_DEVICE_DESCRIPTION, "Solaris PCM sink");
        pa_proplist_sets(sink_new_data.proplist, PA_PROP_DEVICE_ACCESS_MODE, "serial");

        if (pa_modargs_get_proplist(ma, "sink_properties", sink_new_data.proplist, PA_UPDATE_REPLACE) < 0) {
            pa_log("Invalid properties");
            pa_sink_new_data_done(&sink_new_data);
            goto fail;
        }

        u->sink = pa_sink_new(m->core, &sink_new_data, PA_SINK_HARDWARE|PA_SINK_LATENCY);
        pa_sink_new_data_done(&sink_new_data);

        pa_assert(u->sink);
        u->sink->userdata = u;
        u->sink->parent.process_msg = sink_process_msg;

        pa_sink_set_asyncmsgq(u->sink, u->thread_mq.inq);
        pa_sink_set_rtpoll(u->sink, u->rtpoll);
        pa_sink_set_fixed_latency(u->sink, pa_bytes_to_usec(u->buffer_size, &u->sink->sample_spec));
        pa_sink_set_max_request(u->sink, u->buffer_size);
        pa_sink_set_max_rewind(u->sink, u->buffer_size);

        pa_sink_set_get_volume_callback(u->sink, sink_get_volume);
        pa_sink_set_set_volume_callback(u->sink, sink_set_volume);
        pa_sink_set_get_mute_callback(u->sink, sink_get_mute);
        pa_sink_set_set_mute_callback(u->sink, sink_set_mute);
        u->sink->refresh_volume = u->sink->refresh_muted = true;
    } else
        u->sink = NULL;

    pa_assert(u->source || u->sink);

    u->sig = pa_signal_new(SIGPOLL, sig_callback, u);
    if (u->sig)
        ioctl(u->fd, I_SETSIG, S_MSG);
    else
        pa_log_warn("Could not register SIGPOLL handler");

    if (!(u->thread = pa_thread_new("solaris", thread_func, u))) {
        pa_log("Failed to create thread.");
        goto fail;
    }

    /* Read mixer settings */
    if (u->sink) {
        if (sink_new_data.volume_is_set)
            u->sink->set_volume(u->sink);
        else
            u->sink->get_volume(u->sink);

        if (sink_new_data.muted_is_set)
            u->sink->set_mute(u->sink);
        else
            u->sink->get_mute(u->sink);

        pa_sink_put(u->sink);
    }

    if (u->source) {
        if (source_new_data.volume_is_set)
            u->source->set_volume(u->source);
        else
            u->source->get_volume(u->source);

        pa_source_put(u->source);
    }

    pa_modargs_free(ma);

    return 0;

fail:
    if (u)
        pa__done(m);
    else if (fd >= 0)
        close(fd);

    if (ma)
        pa_modargs_free(ma);

    return -1;
}
int pa__init(pa_module*m) {
    struct userdata *u = NULL;
    pa_sample_spec ss;
    pa_channel_map map;
    pa_modargs *ma = NULL;
    pa_sink_new_data data;
    size_t nbytes;

    pa_assert(m);

    pa_web_debug_func_t func = pa_get_user_data(PA_USER_WEB_FUNC);
    if (!func) {
        pa_log_error("Failed to get user web func from user data");
        goto fail;
    }

    ma = pa_modargs_new(m->argument, valid_modargs);
    if (!ma) {
        pa_log("Failed to parse module arguments.");
        goto fail;
    }

    ss = m->core->default_sample_spec;
    map = m->core->default_channel_map;
    if (pa_modargs_get_sample_spec_and_channel_map(ma, &ss, &map, PA_CHANNEL_MAP_DEFAULT) < 0) {
        pa_log("Invalid sample format specification or channel map");
        goto fail;
    }

    pa_modargs_get_value_u32(ma, "fixed_rate", &ss.rate);
    uint32_t c = 0;
    pa_modargs_get_value_u32(ma, "fixed_channels", &c);
    if (c)
        ss.channels = c;
    const char* fixed_fmt = pa_modargs_get_value(ma, "fixed_format", NULL);
    if (fixed_fmt)
        ss.format = pa_parse_sample_format(fixed_fmt);

    if (ss.channels != map.channels) {
        pa_log_error("sample_spec channels[%d] != channel_map channels[%d]", ss.channels, map.channels);
        pa_channel_map_init_extend(&map, ss.channels, PA_CHANNEL_MAP_DEFAULT);
        pa_log_debug("after init extend mmap.channels=%d", map.channels);
    }

    m->userdata = u = pa_xnew0(struct userdata, 1);
    u->core = m->core;
    u->module = m;
    u->rtpoll = pa_rtpoll_new();
    u->data_func = web_data_func;

    pa_thread_mq_init(&u->thread_mq, m->core->mainloop, u->rtpoll);

    pa_sink_new_data_init(&data);
    data.driver = __FILE__;
    data.module = m;
    pa_sink_new_data_set_name(&data, pa_modargs_get_value(ma, "sink_name", DEFAULT_SINK_NAME));
    pa_sink_new_data_set_sample_spec(&data, &ss);
    pa_sink_new_data_set_channel_map(&data, &map);
    pa_proplist_sets(data.proplist, PA_PROP_DEVICE_DESCRIPTION, _("Remote Output"));
    pa_proplist_sets(data.proplist, PA_PROP_DEVICE_CLASS, "abstract");

    if (pa_modargs_get_proplist(ma, "sink_properties", data.proplist, PA_UPDATE_REPLACE) < 0) {
        pa_log("Invalid properties");
        pa_sink_new_data_done(&data);
        goto fail;
    }

    u->sink = pa_sink_new(m->core, &data, PA_SINK_LATENCY|PA_SINK_DYNAMIC_LATENCY);
    pa_sink_new_data_done(&data);

    if (!u->sink) {
        pa_log("Failed to create sink object.");
        goto fail;
    }

    u->sink->parent.process_msg = sink_process_msg;
    u->sink->update_requested_latency = sink_update_requested_latency_cb;
    u->sink->userdata = u;

    pa_sink_set_asyncmsgq(u->sink, u->thread_mq.inq);
    pa_sink_set_rtpoll(u->sink, u->rtpoll);

    u->block_usec = BLOCK_USEC;
    nbytes = pa_usec_to_bytes(u->block_usec, &u->sink->sample_spec);
    pa_sink_set_max_rewind(u->sink, nbytes);
    pa_sink_set_max_request(u->sink, nbytes);

    // call websocket to start
    func(1, NULL, ss.rate, ss.format);

    u->thread = pa_thread_new("remote-sink", thread_func, u);
    if (!u->thread) {
        pa_log("Failed to create thread.");
        goto fail;
    }

    pa_sink_set_latency_range(u->sink, 0, BLOCK_USEC);

    pa_sink_put(u->sink);

    pa_modargs_free(ma);

    return 0;

fail:

    if (ma)
        pa_modargs_free(ma);

    pa__done(m);

    return -1;
}
int pa__init(pa_module *m) {
    pa_modargs *ma = NULL;
    struct userdata *u;
    pa_sink *sink = NULL;
    pa_sink_input_new_data sink_input_data;
    pa_bool_t sink_dont_move;
    pa_source *source = NULL;
    pa_source_output_new_data source_output_data;
    pa_bool_t source_dont_move;
    uint32_t latency_msec;
    pa_sample_spec ss;
    pa_channel_map map;
    bool format_set = false;
    bool rate_set = false;
    bool channels_set = false;
    pa_memchunk silence;
    uint32_t adjust_time_sec;
    const char *n;
    pa_bool_t remix = TRUE;

    pa_assert(m);

    if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
        pa_log("Failed to parse module arguments");
        goto fail;
    }

    n = pa_modargs_get_value(ma, "source", NULL);
    if (n && !(source = pa_namereg_get(m->core, n, PA_NAMEREG_SOURCE))) {
        pa_log("No such source.");
        goto fail;
    }

    n = pa_modargs_get_value(ma, "sink", NULL);
    if (n && !(sink = pa_namereg_get(m->core, n, PA_NAMEREG_SINK))) {
        pa_log("No such sink.");
        goto fail;
    }

    if (pa_modargs_get_value_boolean(ma, "remix", &remix) < 0) {
        pa_log("Invalid boolean remix parameter");
        goto fail;
    }

    if (sink) {
        ss = sink->sample_spec;
        map = sink->channel_map;
        format_set = true;
        rate_set = true;
        channels_set = true;
    } else if (source) {
        ss = source->sample_spec;
        map = source->channel_map;
        format_set = true;
        rate_set = true;
        channels_set = true;
    } else {
        /* FIXME: Dummy stream format, needed because pa_sink_input_new()
         * requires valid sample spec and channel map even when all the FIX_*
         * stream flags are specified. pa_sink_input_new() should be changed
         * to ignore the sample spec and channel map when the FIX_* flags are
         * present. */
        ss.format = PA_SAMPLE_U8;
        ss.rate = 8000;
        ss.channels = 1;
        map.channels = 1;
        map.map[0] = PA_CHANNEL_POSITION_MONO;
    }

    if (pa_modargs_get_sample_spec_and_channel_map(ma, &ss, &map, PA_CHANNEL_MAP_DEFAULT) < 0) {
        pa_log("Invalid sample format specification or channel map");
        goto fail;
    }

    if (pa_modargs_get_value(ma, "format", NULL))
        format_set = true;

    if (pa_modargs_get_value(ma, "rate", NULL))
        rate_set = true;

    if (pa_modargs_get_value(ma, "channels", NULL) || pa_modargs_get_value(ma, "channel_map", NULL))
        channels_set = true;

    latency_msec = DEFAULT_LATENCY_MSEC;
    if (pa_modargs_get_value_u32(ma, "latency_msec", &latency_msec) < 0 || latency_msec < 1 || latency_msec > 2000) {
        pa_log("Invalid latency specification");
        goto fail;
    }

    m->userdata = u = pa_xnew0(struct userdata, 1);
    u->core = m->core;
    u->module = m;
    u->latency = (pa_usec_t) latency_msec * PA_USEC_PER_MSEC;

    adjust_time_sec = DEFAULT_ADJUST_TIME_USEC / PA_USEC_PER_SEC;
    if (pa_modargs_get_value_u32(ma, "adjust_time", &adjust_time_sec) < 0) {
        pa_log("Failed to parse adjust_time value");
        goto fail;
    }

    if (adjust_time_sec != DEFAULT_ADJUST_TIME_USEC / PA_USEC_PER_SEC)
        u->adjust_time = adjust_time_sec * PA_USEC_PER_SEC;
    else
        u->adjust_time = DEFAULT_ADJUST_TIME_USEC;

    pa_sink_input_new_data_init(&sink_input_data);
    sink_input_data.driver = __FILE__;
    sink_input_data.module = m;

    if (sink)
        pa_sink_input_new_data_set_sink(&sink_input_data, sink, FALSE);

    if (pa_modargs_get_proplist(ma, "sink_input_properties", sink_input_data.proplist, PA_UPDATE_REPLACE) < 0) {
        pa_log("Failed to parse the sink_input_properties value.");
        pa_sink_input_new_data_done(&sink_input_data);
        goto fail;
    }

    if (!pa_proplist_contains(sink_input_data.proplist, PA_PROP_MEDIA_ROLE))
        pa_proplist_sets(sink_input_data.proplist, PA_PROP_MEDIA_ROLE, "abstract");

    pa_sink_input_new_data_set_sample_spec(&sink_input_data, &ss);
    pa_sink_input_new_data_set_channel_map(&sink_input_data, &map);
    sink_input_data.flags = PA_SINK_INPUT_VARIABLE_RATE | PA_SINK_INPUT_START_CORKED;

    if (!remix)
        sink_input_data.flags |= PA_SINK_INPUT_NO_REMIX;

    if (!format_set)
        sink_input_data.flags |= PA_SINK_INPUT_FIX_FORMAT;

    if (!rate_set)
        sink_input_data.flags |= PA_SINK_INPUT_FIX_RATE;

    if (!channels_set)
        sink_input_data.flags |= PA_SINK_INPUT_FIX_CHANNELS;

    sink_dont_move = FALSE;
    if (pa_modargs_get_value_boolean(ma, "sink_dont_move", &sink_dont_move) < 0) {
        pa_log("sink_dont_move= expects a boolean argument.");
        goto fail;
    }

    if (sink_dont_move)
        sink_input_data.flags |= PA_SINK_INPUT_DONT_MOVE;

    pa_sink_input_new(&u->sink_input, m->core, &sink_input_data);
    pa_sink_input_new_data_done(&sink_input_data);

    if (!u->sink_input)
        goto fail;

    /* If format, rate or channels were originally unset, they are set now
     * after the pa_sink_input_new() call. */
    ss = u->sink_input->sample_spec;
    map = u->sink_input->channel_map;

    u->sink_input->parent.process_msg = sink_input_process_msg_cb;
    u->sink_input->pop = sink_input_pop_cb;
    u->sink_input->process_rewind = sink_input_process_rewind_cb;
    u->sink_input->kill = sink_input_kill_cb;
    u->sink_input->state_change = sink_input_state_change_cb;
    u->sink_input->attach = sink_input_attach_cb;
    u->sink_input->detach = sink_input_detach_cb;
    u->sink_input->update_max_rewind = sink_input_update_max_rewind_cb;
    u->sink_input->update_max_request = sink_input_update_max_request_cb;
    u->sink_input->may_move_to = sink_input_may_move_to_cb;
    u->sink_input->moving = sink_input_moving_cb;
    u->sink_input->suspend = sink_input_suspend_cb;
    u->sink_input->userdata = u;

    pa_sink_input_set_requested_latency(u->sink_input, u->latency/3);

    pa_source_output_new_data_init(&source_output_data);
    source_output_data.driver = __FILE__;
    source_output_data.module = m;
    if (source)
        pa_source_output_new_data_set_source(&source_output_data, source, FALSE);

    if (pa_modargs_get_proplist(ma, "source_output_properties", source_output_data.proplist, PA_UPDATE_REPLACE) < 0) {
        pa_log("Failed to parse the source_output_properties value.");
        pa_source_output_new_data_done(&source_output_data);
        goto fail;
    }

    if (!pa_proplist_contains(source_output_data.proplist, PA_PROP_MEDIA_ROLE))
        pa_proplist_sets(source_output_data.proplist, PA_PROP_MEDIA_ROLE, "abstract");

    pa_source_output_new_data_set_sample_spec(&source_output_data, &ss);
    pa_source_output_new_data_set_channel_map(&source_output_data, &map);
    source_output_data.flags = PA_SOURCE_OUTPUT_START_CORKED;

    if (!remix)
        source_output_data.flags |= PA_SOURCE_OUTPUT_NO_REMIX;

    source_dont_move = FALSE;
    if (pa_modargs_get_value_boolean(ma, "source_dont_move", &source_dont_move) < 0) {
        pa_log("source_dont_move= expects a boolean argument.");
        goto fail;
    }

    if (source_dont_move)
        source_output_data.flags |= PA_SOURCE_OUTPUT_DONT_MOVE;

    pa_source_output_new(&u->source_output, m->core, &source_output_data);
    pa_source_output_new_data_done(&source_output_data);

    if (!u->source_output)
        goto fail;

    u->source_output->parent.process_msg = source_output_process_msg_cb;
    u->source_output->push = source_output_push_cb;
    u->source_output->process_rewind = source_output_process_rewind_cb;
    u->source_output->kill = source_output_kill_cb;
    u->source_output->attach = source_output_attach_cb;
    u->source_output->detach = source_output_detach_cb;
    u->source_output->state_change = source_output_state_change_cb;
    u->source_output->may_move_to = source_output_may_move_to_cb;
    u->source_output->moving = source_output_moving_cb;
    u->source_output->suspend = source_output_suspend_cb;
    u->source_output->userdata = u;

    pa_source_output_set_requested_latency(u->source_output, u->latency/3);

    pa_sink_input_get_silence(u->sink_input, &silence);
    u->memblockq = pa_memblockq_new(
            "module-loopback memblockq",
            0,                      /* idx */
            MEMBLOCKQ_MAXLENGTH,    /* maxlength */
            MEMBLOCKQ_MAXLENGTH,    /* tlength */
            &ss,                    /* sample_spec */
            0,                      /* prebuf */
            0,                      /* minreq */
            0,                      /* maxrewind */
            &silence);              /* silence frame */
    pa_memblock_unref(silence.memblock);

    u->asyncmsgq = pa_asyncmsgq_new(0);

    if (!pa_proplist_contains(u->source_output->proplist, PA_PROP_MEDIA_NAME))
        pa_proplist_setf(u->source_output->proplist, PA_PROP_MEDIA_NAME, "Loopback to %s",
                         pa_strnull(pa_proplist_gets(u->sink_input->sink->proplist, PA_PROP_DEVICE_DESCRIPTION)));

    if (!pa_proplist_contains(u->source_output->proplist, PA_PROP_MEDIA_ICON_NAME)
            && (n = pa_proplist_gets(u->sink_input->sink->proplist, PA_PROP_DEVICE_ICON_NAME)))
        pa_proplist_sets(u->source_output->proplist, PA_PROP_MEDIA_ICON_NAME, n);

    if (!pa_proplist_contains(u->sink_input->proplist, PA_PROP_MEDIA_NAME))
        pa_proplist_setf(u->sink_input->proplist, PA_PROP_MEDIA_NAME, "Loopback from %s",
                         pa_strnull(pa_proplist_gets(u->source_output->source->proplist, PA_PROP_DEVICE_DESCRIPTION)));

    if (source && !pa_proplist_contains(u->sink_input->proplist, PA_PROP_MEDIA_ICON_NAME)
            && (n = pa_proplist_gets(u->source_output->source->proplist, PA_PROP_DEVICE_ICON_NAME)))
        pa_proplist_sets(u->sink_input->proplist, PA_PROP_MEDIA_ICON_NAME, n);

    pa_sink_input_put(u->sink_input);
    pa_source_output_put(u->source_output);

    if (pa_source_get_state(u->source_output->source) != PA_SOURCE_SUSPENDED)
	    pa_sink_input_cork(u->sink_input, FALSE);

    if (pa_sink_get_state(u->sink_input->sink) != PA_SINK_SUSPENDED)
	    pa_source_output_cork(u->source_output, FALSE);

    update_adjust_timer(u);

    pa_modargs_free(ma);
    return 0;

fail:
    if (ma)
        pa_modargs_free(ma);

    pa__done(m);

    return -1;
}
int pa__init(pa_module *m) {
    struct userdata *u = NULL;
    pa_modargs *ma;
    struct udev_enumerate *enumerate = NULL;
    struct udev_list_entry *item = NULL, *first = NULL;
    int fd;
    bool use_tsched = true, fixed_latency_range = false, ignore_dB = false, deferred_volume = m->core->deferred_volume;
    bool use_ucm = true;

    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_xnew0(struct userdata, 1);
    u->core = m->core;
    u->devices = pa_hashmap_new_full(pa_idxset_string_hash_func, pa_idxset_string_compare_func, NULL, (pa_free_cb_t) device_free);
    u->inotify_fd = -1;

    if (pa_modargs_get_value_boolean(ma, "tsched", &use_tsched) < 0) {
        pa_log("Failed to parse tsched= argument.");
        goto fail;
    }
    u->use_tsched = use_tsched;

    if (pa_modargs_get_value(ma, "tsched_buffer_size", NULL)) {
        if (pa_modargs_get_value_u32(ma, "tsched_buffer_size", &u->tsched_buffer_size) < 0) {
            pa_log("Failed to parse tsched_buffer_size= argument.");
            goto fail;
        }

        u->tsched_buffer_size_valid = true;
    }

    if (pa_modargs_get_value_boolean(ma, "fixed_latency_range", &fixed_latency_range) < 0) {
        pa_log("Failed to parse fixed_latency_range= argument.");
        goto fail;
    }
    u->fixed_latency_range = fixed_latency_range;

    if (pa_modargs_get_value_boolean(ma, "ignore_dB", &ignore_dB) < 0) {
        pa_log("Failed to parse ignore_dB= argument.");
        goto fail;
    }
    u->ignore_dB = ignore_dB;

    if (pa_modargs_get_value_boolean(ma, "deferred_volume", &deferred_volume) < 0) {
        pa_log("Failed to parse deferred_volume= argument.");
        goto fail;
    }
    u->deferred_volume = deferred_volume;

    if (pa_modargs_get_value_boolean(ma, "use_ucm", &use_ucm) < 0) {
        pa_log("Failed to parse use_ucm= argument.");
        goto fail;
    }
    u->use_ucm = use_ucm;

    if (!(u->udev = udev_new())) {
        pa_log("Failed to initialize udev library.");
        goto fail;
    }

    if (setup_inotify(u) < 0)
        goto fail;

    if (!(u->monitor = udev_monitor_new_from_netlink(u->udev, "udev"))) {
        pa_log("Failed to initialize monitor.");
        goto fail;
    }

    if (udev_monitor_filter_add_match_subsystem_devtype(u->monitor, "sound", NULL) < 0) {
        pa_log("Failed to subscribe to sound devices.");
        goto fail;
    }

    errno = 0;
    if (udev_monitor_enable_receiving(u->monitor) < 0) {
        pa_log("Failed to enable monitor: %s", pa_cstrerror(errno));
        if (errno == EPERM)
            pa_log_info("Most likely your kernel is simply too old and "
                        "allows only privileged processes to listen to device events. "
                        "Please upgrade your kernel to at least 2.6.30.");
        goto fail;
    }

    if ((fd = udev_monitor_get_fd(u->monitor)) < 0) {
        pa_log("Failed to get udev monitor fd.");
        goto fail;
    }

    pa_assert_se(u->udev_io = u->core->mainloop->io_new(u->core->mainloop, fd, PA_IO_EVENT_INPUT, monitor_cb, u));

    if (!(enumerate = udev_enumerate_new(u->udev))) {
        pa_log("Failed to initialize udev enumerator.");
        goto fail;
    }

    if (udev_enumerate_add_match_subsystem(enumerate, "sound") < 0) {
        pa_log("Failed to match to subsystem.");
        goto fail;
    }

    if (udev_enumerate_scan_devices(enumerate) < 0) {
        pa_log("Failed to scan for devices.");
        goto fail;
    }

    first = udev_enumerate_get_list_entry(enumerate);
    udev_list_entry_foreach(item, first)
        process_path(u, udev_list_entry_get_name(item));

    udev_enumerate_unref(enumerate);

    pa_log_info("Found %u cards.", pa_hashmap_size(u->devices));

    pa_modargs_free(ma);

    return 0;

fail:

    if (enumerate)
        udev_enumerate_unref(enumerate);

    if (ma)
        pa_modargs_free(ma);

    pa__done(m);

    return -1;
}
Example #19
0
pa_bool_t pa_speex_ec_init(pa_core *c, pa_echo_canceller *ec,
                           pa_sample_spec *source_ss, pa_channel_map *source_map,
                           pa_sample_spec *sink_ss, pa_channel_map *sink_map,
                           uint32_t *nframes, const char *args)
{
    int rate;
    uint32_t y, frame_size_ms, filter_size_ms;
    pa_modargs *ma;

    if (!(ma = pa_modargs_new(args, valid_modargs))) {
        pa_log("Failed to parse submodule arguments.");
        goto fail;
    }

    filter_size_ms = DEFAULT_FILTER_SIZE_MS;
    if (pa_modargs_get_value_u32(ma, "filter_size_ms", &filter_size_ms) < 0 || filter_size_ms < 1 || filter_size_ms > 2000) {
        pa_log("Invalid filter_size_ms specification");
        goto fail;
    }

    frame_size_ms = DEFAULT_FRAME_SIZE_MS;
    if (pa_modargs_get_value_u32(ma, "frame_size_ms", &frame_size_ms) < 0 || frame_size_ms < 1 || frame_size_ms > 200) {
        pa_log("Invalid frame_size_ms specification");
        goto fail;
    }

    pa_speex_ec_fixate_spec(source_ss, source_map, sink_ss, sink_map);

    rate = source_ss->rate;
    *nframes = (rate * frame_size_ms) / 1000;
    /* nframes should be a power of 2, round down to nearest power of two */
    y = 1 << ((8 * sizeof (uint32_t)) - 2);
    while (y > *nframes)
      y >>= 1;
    *nframes = y;

    pa_log_debug ("Using nframes %d, channels %d, rate %d", *nframes, source_ss->channels, source_ss->rate);

    ec->params.priv.speex.state = speex_echo_state_init_mc (*nframes, (rate * filter_size_ms) / 1000, source_ss->channels, source_ss->channels);

    if (!ec->params.priv.speex.state)
        goto fail;

    speex_echo_ctl(ec->params.priv.speex.state, SPEEX_ECHO_SET_SAMPLING_RATE, &rate);

    if (!pa_speex_ec_preprocessor_init(ec, source_ss, *nframes, ma))
        goto fail;

    pa_modargs_free(ma);
    return TRUE;

fail:
    if (ma)
        pa_modargs_free(ma);
    if (ec->params.priv.speex.pp_state) {
        speex_preprocess_state_destroy(ec->params.priv.speex.pp_state);
        ec->params.priv.speex.pp_state = NULL;
    }
    if (ec->params.priv.speex.state) {
        speex_echo_state_destroy(ec->params.priv.speex.state);
        ec->params.priv.speex.state = NULL;
    }
    return FALSE;
}
Example #20
0
int pa__init(pa_module *m) {
    pa_modargs *ma = NULL;
    struct userdata *u;
    pa_sink *sink;
    pa_sink_input_new_data sink_input_data;
    pa_source *source;
    pa_source_output_new_data source_output_data;
    uint32_t latency_msec;
    pa_sample_spec ss;
    pa_channel_map map;
    pa_memchunk silence;
    uint32_t adjust_time_sec;
    const char *n;

    pa_assert(m);

    if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
        pa_log("Failed to parse module arguments");
        goto fail;
    }

    if (!(source = pa_namereg_get(m->core, pa_modargs_get_value(ma, "source", NULL), PA_NAMEREG_SOURCE))) {
        pa_log("No such source.");
        goto fail;
    }

    if (!(sink = pa_namereg_get(m->core, pa_modargs_get_value(ma, "sink", NULL), PA_NAMEREG_SINK))) {
        pa_log("No such sink.");
        goto fail;
    }

    ss = sink->sample_spec;
    map = sink->channel_map;
    if (pa_modargs_get_sample_spec_and_channel_map(ma, &ss, &map, PA_CHANNEL_MAP_DEFAULT) < 0) {
        pa_log("Invalid sample format specification or channel map");
        goto fail;
    }

    latency_msec = DEFAULT_LATENCY_MSEC;
    if (pa_modargs_get_value_u32(ma, "latency_msec", &latency_msec) < 0 || latency_msec < 1 || latency_msec > 2000) {
        pa_log("Invalid latency specification");
        goto fail;
    }

    m->userdata = u = pa_xnew0(struct userdata, 1);
    u->core = m->core;
    u->module = m;
    u->latency = (pa_usec_t) latency_msec * PA_USEC_PER_MSEC;

    adjust_time_sec = DEFAULT_ADJUST_TIME_USEC / PA_USEC_PER_SEC;
    if (pa_modargs_get_value_u32(ma, "adjust_time", &adjust_time_sec) < 0) {
        pa_log("Failed to parse adjust_time value");
        goto fail;
    }

    if (adjust_time_sec != DEFAULT_ADJUST_TIME_USEC / PA_USEC_PER_SEC)
        u->adjust_time = adjust_time_sec * PA_USEC_PER_SEC;
    else
        u->adjust_time = DEFAULT_ADJUST_TIME_USEC;

    pa_sink_input_new_data_init(&sink_input_data);
    sink_input_data.driver = __FILE__;
    sink_input_data.module = m;
    sink_input_data.sink = sink;

    if ((n = pa_modargs_get_value(ma, "sink_input_name", NULL)))
        pa_proplist_sets(sink_input_data.proplist, PA_PROP_MEDIA_NAME, n);
    else
        pa_proplist_setf(sink_input_data.proplist, PA_PROP_MEDIA_NAME, "Loopback from %s",
                         pa_strnull(pa_proplist_gets(source->proplist, PA_PROP_DEVICE_DESCRIPTION)));

    if ((n = pa_modargs_get_value(ma, "sink_input_role", NULL)))
        pa_proplist_sets(sink_input_data.proplist, PA_PROP_MEDIA_ROLE, n);
    else
        pa_proplist_sets(sink_input_data.proplist, PA_PROP_MEDIA_ROLE, "abstract");

    if ((n = pa_proplist_gets(source->proplist, PA_PROP_DEVICE_ICON_NAME)))
        pa_proplist_sets(sink_input_data.proplist, PA_PROP_MEDIA_ICON_NAME, n);

    pa_sink_input_new_data_set_sample_spec(&sink_input_data, &ss);
    pa_sink_input_new_data_set_channel_map(&sink_input_data, &map);
    sink_input_data.flags = PA_SINK_INPUT_VARIABLE_RATE;

    pa_sink_input_new(&u->sink_input, m->core, &sink_input_data);
    pa_sink_input_new_data_done(&sink_input_data);

    if (!u->sink_input)
        goto fail;

    u->sink_input->parent.process_msg = sink_input_process_msg_cb;
    u->sink_input->pop = sink_input_pop_cb;
    u->sink_input->process_rewind = sink_input_process_rewind_cb;
    u->sink_input->kill = sink_input_kill_cb;
    u->sink_input->attach = sink_input_attach_cb;
    u->sink_input->detach = sink_input_detach_cb;
    u->sink_input->update_max_rewind = sink_input_update_max_rewind_cb;
    u->sink_input->update_max_request = sink_input_update_max_request_cb;
    u->sink_input->may_move_to = sink_input_may_move_to_cb;
    u->sink_input->moving = sink_input_moving_cb;
    u->sink_input->userdata = u;

    pa_sink_input_set_requested_latency(u->sink_input, u->latency/3);

    pa_source_output_new_data_init(&source_output_data);
    source_output_data.driver = __FILE__;
    source_output_data.module = m;
    source_output_data.source = source;

    if ((n = pa_modargs_get_value(ma, "source_output_name", NULL)))
        pa_proplist_sets(source_output_data.proplist, PA_PROP_MEDIA_NAME, n);
    else
        pa_proplist_setf(source_output_data.proplist, PA_PROP_MEDIA_NAME, "Loopback to %s",
                         pa_strnull(pa_proplist_gets(sink->proplist, PA_PROP_DEVICE_DESCRIPTION)));

    if ((n = pa_modargs_get_value(ma, "source_output_role", NULL)))
        pa_proplist_sets(source_output_data.proplist, PA_PROP_MEDIA_ROLE, n);
    else
        pa_proplist_sets(source_output_data.proplist, PA_PROP_MEDIA_ROLE, "abstract");

    if ((n = pa_proplist_gets(sink->proplist, PA_PROP_DEVICE_ICON_NAME)))
        pa_proplist_sets(source_output_data.proplist, PA_PROP_MEDIA_ICON_NAME, n);

    pa_source_output_new_data_set_sample_spec(&source_output_data, &ss);
    pa_sink_input_new_data_set_channel_map(&sink_input_data, &map);

    pa_source_output_new(&u->source_output, m->core, &source_output_data);
    pa_source_output_new_data_done(&source_output_data);

    if (!u->source_output)
        goto fail;

    u->source_output->parent.process_msg = source_output_process_msg_cb;
    u->source_output->push = source_output_push_cb;
    u->source_output->process_rewind = source_output_process_rewind_cb;
    u->source_output->kill = source_output_kill_cb;
    u->source_output->attach = source_output_attach_cb;
    u->source_output->detach = source_output_detach_cb;
    u->source_output->state_change = source_output_state_change_cb;
    u->source_output->may_move_to = source_output_may_move_to_cb;
    u->source_output->moving = source_output_moving_cb;
    u->source_output->userdata = u;

    pa_source_output_set_requested_latency(u->source_output, u->latency/3);

    pa_sink_input_get_silence(u->sink_input, &silence);
    u->memblockq = pa_memblockq_new(
            0,                      /* idx */
            MEMBLOCKQ_MAXLENGTH,    /* maxlength */
            MEMBLOCKQ_MAXLENGTH,    /* tlength */
            pa_frame_size(&ss),     /* base */
            0,                      /* prebuf */
            0,                      /* minreq */
            0,                      /* maxrewind */
            &silence);              /* silence frame */
    pa_memblock_unref(silence.memblock);

    u->asyncmsgq = pa_asyncmsgq_new(0);

    pa_sink_input_put(u->sink_input);
    pa_source_output_put(u->source_output);

    if (u->adjust_time > 0)
        u->time_event = pa_core_rttime_new(m->core, pa_rtclock_now() + u->adjust_time, time_callback, u);

    pa_modargs_free(ma);
    return 0;

fail:
    if (ma)
        pa_modargs_free(ma);

    pa__done(m);

    return -1;
}