static void
alsa_configure(struct alsa_data *ad, const struct config_param *param)
{
ad->device = config_dup_block_string(param, "device", NULL);
ad->use_mmap = config_get_block_bool(param, "use_mmap", false);
ad->buffer_time = config_get_block_unsigned(param, "buffer_time",
MPD_ALSA_BUFFER_TIME_US);
ad->period_time = config_get_block_unsigned(param, "period_time", 0);
#ifdef SND_PCM_NO_AUTO_RESAMPLE
if (!config_get_block_bool(param, "auto_resample", true))
ad->mode |= SND_PCM_NO_AUTO_RESAMPLE;
#endif
#ifdef SND_PCM_NO_AUTO_CHANNELS
if (!config_get_block_bool(param, "auto_channels", true))
ad->mode |= SND_PCM_NO_AUTO_CHANNELS;
#endif
#ifdef SND_PCM_NO_AUTO_FORMAT
if (!config_get_block_bool(param, "auto_format", true))
ad->mode |= SND_PCM_NO_AUTO_FORMAT;
#endif
}
bool
input_stream_global_init(GError **error_r)
{
GError *error = NULL;
for (unsigned i = 0; input_plugins[i] != NULL; ++i) {
const struct input_plugin *plugin = input_plugins[i];
assert(plugin->name != NULL);
assert(*plugin->name != 0);
assert(plugin->open != NULL);
const struct config_param *param =
input_plugin_config(plugin->name, &error);
if (param == NULL && error != NULL) {
g_propagate_error(error_r, error);
return false;
}
if (!config_get_block_bool(param, "enabled", true))
/* the plugin is disabled in mpd.conf */
continue;
if (plugin->init == NULL || plugin->init(param, &error))
input_plugins_enabled[i] = true;
else {
g_propagate_prefixed_error(error_r, error,
"Failed to initialize input plugin '%s': ",
plugin->name);
return false;
}
}
return true;
}
void decoder_plugin_init_all(void)
{
for (unsigned i = 0; decoder_plugins[i] != NULL; ++i) {
const struct decoder_plugin *plugin = decoder_plugins[i];
const struct config_param *param =
decoder_plugin_config(plugin->name);
if (!config_get_block_bool(param, "enabled", true))
/* the plugin is disabled in mpd.conf */
continue;
if (decoder_plugin_init(plugin, param))
decoder_plugins_enabled[i] = true;
}
}
void
playlist_list_global_init(void)
{
for (unsigned i = 0; playlist_plugins[i] != NULL; ++i) {
const struct playlist_plugin *plugin = playlist_plugins[i];
const struct config_param *param =
playlist_plugin_config(plugin->name);
if (!config_get_block_bool(param, "enabled", true))
/* the plugin is disabled in mpd.conf */
continue;
playlist_plugins_enabled[i] =
playlist_plugin_init(playlist_plugins[i], param);
}
}
/**
* Determines the mixer type which should be used for the specified
* configuration block.
*
* This handles the deprecated options mixer_type (global) and
* mixer_enabled, if the mixer_type setting is not configured.
*/
static enum mixer_type
audio_output_mixer_type(const struct config_param *param)
{
/* read the local "mixer_type" setting */
const char *p = config_get_block_string(param, "mixer_type", NULL);
if (p != NULL)
return mixer_type_parse(p);
/* try the local "mixer_enabled" setting next (deprecated) */
if (!config_get_block_bool(param, "mixer_enabled", true))
return MIXER_TYPE_NONE;
/* fall back to the global "mixer_type" setting (also
deprecated) */
return mixer_type_parse(config_get_string("mixer_type", "hardware"));
}
static bool
dsdiff_init(const struct config_param *param)
{
lsbitfirst = config_get_block_bool(param, "lsbitfirst", false);
return true;
}
bool
audio_output_init(struct audio_output *ao, const struct config_param *param,
GError **error_r)
{
const struct audio_output_plugin *plugin = NULL;
GError *error = NULL;
if (param) {
const char *p;
p = config_get_block_string(param, AUDIO_OUTPUT_TYPE, NULL);
if (p == NULL) {
g_set_error(error_r, audio_output_quark(), 0,
"Missing \"type\" configuration");
return false;
}
plugin = audio_output_plugin_get(p);
if (plugin == NULL) {
g_set_error(error_r, audio_output_quark(), 0,
"No such audio output plugin: %s", p);
return false;
}
ao->name = config_get_block_string(param, AUDIO_OUTPUT_NAME,
NULL);
if (ao->name == NULL) {
g_set_error(error_r, audio_output_quark(), 0,
"Missing \"name\" configuration");
return false;
}
p = config_get_block_string(param, AUDIO_OUTPUT_FORMAT,
NULL);
if (p != NULL) {
bool success =
audio_format_parse(&ao->config_audio_format,
p, true, error_r);
if (!success)
return false;
} else
audio_format_clear(&ao->config_audio_format);
} else {
g_warning("No \"%s\" defined in config file\n",
CONF_AUDIO_OUTPUT);
plugin = audio_output_detect(error_r);
if (plugin == NULL)
return false;
g_message("Successfully detected a %s audio device",
plugin->name);
ao->name = "default detected output";
audio_format_clear(&ao->config_audio_format);
}
ao->plugin = plugin;
ao->always_on = config_get_block_bool(param, "always_on", false);
ao->enabled = config_get_block_bool(param, "enabled", true);
ao->really_enabled = false;
ao->open = false;
ao->pause = false;
ao->fail_timer = NULL;
pcm_buffer_init(&ao->cross_fade_buffer);
/* set up the filter chain */
ao->filter = filter_chain_new();
assert(ao->filter != NULL);
/* create the replay_gain filter */
const char *replay_gain_handler =
config_get_block_string(param, "replay_gain_handler",
"software");
if (strcmp(replay_gain_handler, "none") != 0) {
ao->replay_gain_filter = filter_new(&replay_gain_filter_plugin,
param, NULL);
assert(ao->replay_gain_filter != NULL);
ao->replay_gain_serial = 0;
ao->other_replay_gain_filter = filter_new(&replay_gain_filter_plugin,
param, NULL);
assert(ao->other_replay_gain_filter != NULL);
ao->other_replay_gain_serial = 0;
} else {
ao->replay_gain_filter = NULL;
ao->other_replay_gain_filter = NULL;
}
/* create the normalization filter (if configured) */
if (config_get_bool(CONF_VOLUME_NORMALIZATION, false)) {
struct filter *normalize_filter =
filter_new(&normalize_filter_plugin, NULL, NULL);
assert(normalize_filter != NULL);
filter_chain_append(ao->filter,
autoconvert_filter_new(normalize_filter));
}
filter_chain_parse(ao->filter,
config_get_block_string(param, AUDIO_FILTERS, ""),
&error
);
// It's not really fatal - Part of the filter chain has been set up already
// and even an empty one will work (if only with unexpected behaviour)
if (error != NULL) {
g_warning("Failed to initialize filter chain for '%s': %s",
ao->name, error->message);
g_error_free(error);
}
ao->thread = NULL;
ao->command = AO_COMMAND_NONE;
ao->mutex = g_mutex_new();
ao->cond = g_cond_new();
ao->data = ao_plugin_init(plugin,
&ao->config_audio_format,
param, error_r);
if (ao->data == NULL)
return false;
ao->mixer = audio_output_load_mixer(ao->data, param,
plugin->mixer_plugin,
ao->filter, &error);
if (ao->mixer == NULL && error != NULL) {
g_warning("Failed to initialize hardware mixer for '%s': %s",
ao->name, error->message);
g_error_free(error);
}
/* use the hardware mixer for replay gain? */
if (strcmp(replay_gain_handler, "mixer") == 0) {
if (ao->mixer != NULL)
replay_gain_filter_set_mixer(ao->replay_gain_filter,
ao->mixer, 100);
else
g_warning("No such mixer for output '%s'", ao->name);
} else if (strcmp(replay_gain_handler, "software") != 0 &&
ao->replay_gain_filter != NULL) {
g_set_error(error_r, audio_output_quark(), 0,
"Invalid \"replay_gain_handler\" value");
return false;
}
/* the "convert" filter must be the last one in the chain */
ao->convert_filter = filter_new(&convert_filter_plugin, NULL, NULL);
assert(ao->convert_filter != NULL);
filter_chain_append(ao->filter, ao->convert_filter);
/* done */
return true;
}
