char *pa_sw_cvolume_snprint_dB(char *s, size_t l, const pa_cvolume *c) {
unsigned channel;
pa_bool_t first = TRUE;
char *e;
pa_assert(s);
pa_assert(l > 0);
pa_assert(c);
pa_init_i18n();
if (!pa_cvolume_valid(c)) {
pa_snprintf(s, l, _("(invalid)"));
return s;
}
*(e = s) = 0;
for (channel = 0; channel < c->channels && l > 1; channel++) {
double f = pa_sw_volume_to_dB(c->values[channel]);
l -= pa_snprintf(e, l, "%s%u: %0.2f dB",
first ? "" : " ",
channel,
isinf(f) < 0 || f <= PA_DECIBEL_MININFTY ? -INFINITY : f);
e = strchr(e, 0);
first = FALSE;
}
return s;
}
char *pa_cvolume_snprint(char *s, size_t l, const pa_cvolume *c) {
unsigned channel;
pa_bool_t first = TRUE;
char *e;
pa_assert(s);
pa_assert(l > 0);
pa_assert(c);
pa_init_i18n();
if (!pa_cvolume_valid(c)) {
pa_snprintf(s, l, _("(invalid)"));
return s;
}
*(e = s) = 0;
for (channel = 0; channel < c->channels && l > 1; channel++) {
l -= pa_snprintf(e, l, "%s%u: %3u%%",
first ? "" : " ",
channel,
(c->values[channel]*100+PA_VOLUME_NORM/2)/PA_VOLUME_NORM);
e = strchr(e, 0);
first = FALSE;
}
return s;
}
pa_cvolume* pa_cvolume_merge(pa_cvolume *dest, const pa_cvolume *a, const pa_cvolume *b) {
unsigned i;
pa_assert(dest);
pa_assert(a);
pa_assert(b);
pa_return_val_if_fail(pa_cvolume_valid(a), NULL);
pa_return_val_if_fail(pa_cvolume_valid(b), NULL);
for (i = 0; i < a->channels && i < b->channels; i++)
dest->values[i] = PA_MAX(a->values[i], b->values[i]);
dest->channels = (uint8_t) i;
return dest;
}
int pa_cvolume_compatible_with_channel_map(const pa_cvolume *v, const pa_channel_map *cm) {
pa_assert(v);
pa_assert(cm);
pa_return_val_if_fail(pa_cvolume_valid(v), 0);
pa_return_val_if_fail(pa_channel_map_valid(cm), 0);
return v->channels == cm->channels;
}
int pa_cvolume_compatible(const pa_cvolume *v, const pa_sample_spec *ss) {
pa_assert(v);
pa_assert(ss);
pa_return_val_if_fail(pa_cvolume_valid(v), 0);
pa_return_val_if_fail(pa_sample_spec_valid(ss), 0);
return v->channels == ss->channels;
}
int pa_cvolume_equal(const pa_cvolume *a, const pa_cvolume *b) {
int i;
pa_assert(a);
pa_assert(b);
pa_return_val_if_fail(pa_cvolume_valid(a), 0);
if (PA_UNLIKELY(a == b))
return 1;
pa_return_val_if_fail(pa_cvolume_valid(b), 0);
if (a->channels != b->channels)
return 0;
for (i = 0; i < a->channels; i++)
if (a->values[i] != b->values[i])
return 0;
return 1;
}
pa_volume_t pa_cvolume_min(const pa_cvolume *a) {
pa_volume_t m = PA_VOLUME_MAX;
unsigned c;
pa_assert(a);
pa_return_val_if_fail(pa_cvolume_valid(a), PA_VOLUME_MUTED);
for (c = 0; c < a->channels; c++)
if (a->values[c] < m)
m = a->values[c];
return m;
}
int pa_cvolume_channels_equal_to(const pa_cvolume *a, pa_volume_t v) {
unsigned c;
pa_assert(a);
pa_return_val_if_fail(pa_cvolume_valid(a), 0);
pa_return_val_if_fail(PA_VOLUME_IS_VALID(v), 0);
for (c = 0; c < a->channels; c++)
if (a->values[c] != v)
return 0;
return 1;
}
pa_volume_t pa_cvolume_avg(const pa_cvolume *a) {
uint64_t sum = 0;
unsigned c;
pa_assert(a);
pa_return_val_if_fail(pa_cvolume_valid(a), PA_VOLUME_MUTED);
for (c = 0; c < a->channels; c++)
sum += a->values[c];
sum /= a->channels;
return (pa_volume_t) sum;
}
static struct entry* read_entry(struct userdata *u, const char *name) {
pa_datum key, data;
struct entry *e;
pa_assert(u);
pa_assert(name);
key.data = (char*) name;
key.size = strlen(name);
pa_zero(data);
if (!pa_database_get(u->database, &key, &data))
goto fail;
if (data.size != sizeof(struct entry)) {
pa_log_debug("Database contains entry for device %s of wrong size %lu != %lu. Probably due to upgrade, ignoring.", name, (unsigned long) data.size, (unsigned long) sizeof(struct entry));
goto fail;
}
e = (struct entry*) data.data;
if (e->version != ENTRY_VERSION) {
pa_log_debug("Version of database entry for device %s doesn't match our version. Probably due to upgrade, ignoring.", name);
goto fail;
}
if (!memchr(e->port, 0, sizeof(e->port))) {
pa_log_warn("Database contains entry for device %s with missing NUL byte in port name", name);
goto fail;
}
if (e->volume_valid && !pa_channel_map_valid(&e->channel_map)) {
pa_log_warn("Invalid channel map stored in database for device %s", name);
goto fail;
}
if (e->volume_valid && (!pa_cvolume_valid(&e->volume) || !pa_cvolume_compatible_with_channel_map(&e->volume, &e->channel_map))) {
pa_log_warn("Volume and channel map don't match in database entry for device %s", name);
goto fail;
}
return e;
fail:
pa_datum_free(&data);
return NULL;
}
static void stream_moved_cb(pa_stream *s, void *userdata)
{
audio_output_t *aout = userdata;
aout_sys_t *sys = aout->sys;
const char *name = pa_stream_get_device_name(s);
struct sink *sink = sink_find(sys, pa_stream_get_device_index(s));
msg_Dbg(aout, "connected to sink %s", name);
aout_DeviceReport(aout, name);
sys->base_volume = likely(sink != NULL) ? sink->base_volume
: PA_VOLUME_INVALID;
msg_Dbg(aout, "base volume: %"PRIu32, sys->base_volume);
if (pa_cvolume_valid(&sys->cvolume))
VolumeReport(aout);
}
pa_cvolume *pa_sw_cvolume_divide_scalar(pa_cvolume *dest, const pa_cvolume *a, pa_volume_t b) {
unsigned i;
pa_assert(dest);
pa_assert(a);
pa_return_val_if_fail(pa_cvolume_valid(a), NULL);
pa_return_val_if_fail(PA_VOLUME_IS_VALID(b), NULL);
for (i = 0; i < a->channels; i++)
dest->values[i] = pa_sw_volume_divide(a->values[i], b);
dest->channels = (uint8_t) i;
return dest;
}
pa_cvolume* pa_cvolume_dec(pa_cvolume *v, pa_volume_t dec) {
pa_volume_t m;
pa_assert(v);
pa_return_val_if_fail(pa_cvolume_valid(v), NULL);
pa_return_val_if_fail(PA_VOLUME_IS_VALID(dec), NULL);
m = pa_cvolume_max(v);
if (m <= PA_VOLUME_MUTED + dec)
m = PA_VOLUME_MUTED;
else
m -= dec;
return pa_cvolume_scale(v, m);
}
pa_cvolume* pa_cvolume_inc_clamp(pa_cvolume *v, pa_volume_t inc, pa_volume_t limit) {
pa_volume_t m;
pa_assert(v);
pa_return_val_if_fail(pa_cvolume_valid(v), NULL);
pa_return_val_if_fail(PA_VOLUME_IS_VALID(inc), NULL);
m = pa_cvolume_max(v);
if (m >= limit - inc)
m = limit;
else
m += inc;
return pa_cvolume_scale(v, m);
}
pa_cvolume* pa_cvolume_scale(pa_cvolume *v, pa_volume_t max) {
unsigned c;
pa_volume_t t = 0;
pa_assert(v);
pa_return_val_if_fail(pa_cvolume_valid(v), NULL);
pa_return_val_if_fail(PA_VOLUME_IS_VALID(max), NULL);
t = pa_cvolume_max(v);
if (t <= PA_VOLUME_MUTED)
return pa_cvolume_set(v, v->channels, max);
for (c = 0; c < v->channels; c++)
v->values[c] = (pa_volume_t) PA_CLAMP_VOLUME(((uint64_t) v->values[c] * (uint64_t) max) / (uint64_t) t);
return v;
}
char *pa_cvolume_snprint_verbose(char *s, size_t l, const pa_cvolume *c, const pa_channel_map *map, int print_dB) {
char *current = s;
bool first = true;
pa_assert(s);
pa_assert(l > 0);
pa_assert(c);
pa_init_i18n();
if (!pa_cvolume_valid(c)) {
pa_snprintf(s, l, _("(invalid)"));
return s;
}
pa_assert(!map || (map->channels == c->channels));
pa_assert(!map || pa_channel_map_valid(map));
current[0] = 0;
for (unsigned channel = 0; channel < c->channels && l > 1; channel++) {
char channel_position[32];
size_t bytes_printed;
char buf[PA_VOLUME_SNPRINT_VERBOSE_MAX];
if (map)
pa_snprintf(channel_position, sizeof(channel_position), "%s", pa_channel_position_to_string(map->map[channel]));
else
pa_snprintf(channel_position, sizeof(channel_position), "%u", channel);
bytes_printed = pa_snprintf(current, l, "%s%s: %s",
first ? "" : ", ",
channel_position,
pa_volume_snprint_verbose(buf, sizeof(buf), c->values[channel], print_dB));
l -= bytes_printed;
current += bytes_printed;
first = false;
}
return s;
}
int pa_scache_play_item(pa_core *c, const char *name, pa_sink *sink, pa_volume_t volume, pa_proplist *p, uint32_t *sink_input_idx) {
pa_scache_entry *e;
pa_cvolume r;
pa_proplist *merged;
pa_bool_t pass_volume;
pa_assert(c);
pa_assert(name);
pa_assert(sink);
if (!(e = pa_namereg_get(c, name, PA_NAMEREG_SAMPLE)))
return -1;
merged = pa_proplist_new();
pa_proplist_sets(merged, PA_PROP_MEDIA_NAME, name);
pa_proplist_sets(merged, PA_PROP_EVENT_ID, name);
if (e->lazy && !e->memchunk.memblock) {
pa_channel_map old_channel_map = e->channel_map;
if (pa_sound_file_load(c->mempool, e->filename, &e->sample_spec, &e->channel_map, &e->memchunk, merged) < 0)
goto fail;
pa_subscription_post(c, PA_SUBSCRIPTION_EVENT_SAMPLE_CACHE|PA_SUBSCRIPTION_EVENT_CHANGE, e->index);
if (e->volume_is_set) {
if (pa_cvolume_valid(&e->volume))
pa_cvolume_remap(&e->volume, &old_channel_map, &e->channel_map);
else
pa_cvolume_reset(&e->volume, e->sample_spec.channels);
}
}
if (!e->memchunk.memblock)
goto fail;
pa_log_debug("Playing sample \"%s\" on \"%s\"", name, sink->name);
pass_volume = TRUE;
if (e->volume_is_set && volume != PA_VOLUME_INVALID) {
pa_cvolume_set(&r, e->sample_spec.channels, volume);
pa_sw_cvolume_multiply(&r, &r, &e->volume);
} else if (e->volume_is_set)
r = e->volume;
else if (volume != PA_VOLUME_INVALID)
pa_cvolume_set(&r, e->sample_spec.channels, volume);
else
pass_volume = FALSE;
pa_proplist_update(merged, PA_UPDATE_REPLACE, e->proplist);
if (p)
pa_proplist_update(merged, PA_UPDATE_REPLACE, p);
if (pa_play_memchunk(sink,
&e->sample_spec, &e->channel_map,
&e->memchunk,
pass_volume ? &r : NULL,
merged,
PA_SINK_INPUT_NO_CREATE_ON_SUSPEND|PA_SINK_INPUT_KILL_ON_SUSPEND, sink_input_idx) < 0)
goto fail;
pa_proplist_free(merged);
if (e->lazy)
time(&e->last_used_time);
return 0;
fail:
pa_proplist_free(merged);
return -1;
}
/* Called from main context */
pa_source* pa_source_new(
pa_core *core,
pa_source_new_data *data,
pa_source_flags_t flags) {
pa_source *s;
const char *name;
char st[PA_SAMPLE_SPEC_SNPRINT_MAX], cm[PA_CHANNEL_MAP_SNPRINT_MAX];
char *pt;
pa_assert(core);
pa_assert(data);
pa_assert(data->name);
pa_assert_ctl_context();
s = pa_msgobject_new(pa_source);
if (!(name = pa_namereg_register(core, data->name, PA_NAMEREG_SOURCE, s, data->namereg_fail))) {
pa_log_debug("Failed to register name %s.", data->name);
pa_xfree(s);
return NULL;
}
pa_source_new_data_set_name(data, name);
if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SOURCE_NEW], data) < 0) {
pa_xfree(s);
pa_namereg_unregister(core, name);
return NULL;
}
/* FIXME, need to free s here on failure */
pa_return_null_if_fail(!data->driver || pa_utf8_valid(data->driver));
pa_return_null_if_fail(data->name && pa_utf8_valid(data->name) && data->name[0]);
pa_return_null_if_fail(data->sample_spec_is_set && pa_sample_spec_valid(&data->sample_spec));
if (!data->channel_map_is_set)
pa_return_null_if_fail(pa_channel_map_init_auto(&data->channel_map, data->sample_spec.channels, PA_CHANNEL_MAP_DEFAULT));
pa_return_null_if_fail(pa_channel_map_valid(&data->channel_map));
pa_return_null_if_fail(data->channel_map.channels == data->sample_spec.channels);
if (!data->volume_is_set)
pa_cvolume_reset(&data->volume, data->sample_spec.channels);
pa_return_null_if_fail(pa_cvolume_valid(&data->volume));
pa_return_null_if_fail(pa_cvolume_compatible(&data->volume, &data->sample_spec));
if (!data->muted_is_set)
data->muted = FALSE;
if (data->card)
pa_proplist_update(data->proplist, PA_UPDATE_MERGE, data->card->proplist);
pa_device_init_description(data->proplist);
pa_device_init_icon(data->proplist, FALSE);
pa_device_init_intended_roles(data->proplist);
if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SOURCE_FIXATE], data) < 0) {
pa_xfree(s);
pa_namereg_unregister(core, name);
return NULL;
}
s->parent.parent.free = source_free;
s->parent.process_msg = pa_source_process_msg;
s->core = core;
s->state = PA_SOURCE_INIT;
s->flags = flags;
s->priority = 0;
s->suspend_cause = 0;
s->name = pa_xstrdup(name);
s->proplist = pa_proplist_copy(data->proplist);
s->driver = pa_xstrdup(pa_path_get_filename(data->driver));
s->module = data->module;
s->card = data->card;
s->priority = pa_device_init_priority(s->proplist);
s->sample_spec = data->sample_spec;
s->channel_map = data->channel_map;
s->outputs = pa_idxset_new(NULL, NULL);
s->n_corked = 0;
s->monitor_of = NULL;
s->output_from_master = NULL;
s->volume = data->volume;
pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
s->base_volume = PA_VOLUME_NORM;
s->n_volume_steps = PA_VOLUME_NORM+1;
s->muted = data->muted;
s->refresh_volume = s->refresh_muted = FALSE;
reset_callbacks(s);
s->userdata = NULL;
s->asyncmsgq = NULL;
/* As a minor optimization we just steal the list instead of
* copying it here */
s->ports = data->ports;
data->ports = NULL;
s->active_port = NULL;
s->save_port = FALSE;
if (data->active_port && s->ports)
if ((s->active_port = pa_hashmap_get(s->ports, data->active_port)))
s->save_port = data->save_port;
if (!s->active_port && s->ports) {
void *state;
pa_device_port *p;
PA_HASHMAP_FOREACH(p, s->ports, state)
if (!s->active_port || p->priority > s->active_port->priority)
s->active_port = p;
}