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core: infrastructure for alternate sampling rate

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New parameter to avoid resampling. BIG power savings here...

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
This commit is contained in:
Pierre-Louis Bossart 2011-08-02 18:37:27 -05:00 • committed by Arun Raghavan
parent 31a9f195fa
commit 5bcfd2b630
9 changed files with 97 additions and 2 deletions
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45
src/modules/dbus/iface-core.c
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@ -62,6 +62,8 @@ static void handle_get_default_sample_format(DBusConnection *conn, DBusMessage *
static void handle_set_default_sample_format(DBusConnection *conn, DBusMessage *msg, DBusMessageIter *iter, void *userdata);
static void handle_get_default_sample_rate(DBusConnection *conn, DBusMessage *msg, void *userdata);
static void handle_set_default_sample_rate(DBusConnection *conn, DBusMessage *msg, DBusMessageIter *iter, void *userdata);
static void handle_get_alternate_sample_rate(DBusConnection *conn, DBusMessage *msg, void *userdata);
static void handle_set_alternate_sample_rate(DBusConnection *conn, DBusMessage *msg, DBusMessageIter *iter, void *userdata);
static void handle_get_cards(DBusConnection *conn, DBusMessage *msg, void *userdata);
static void handle_get_sinks(DBusConnection *conn, DBusMessage *msg, void *userdata);
static void handle_get_fallback_sink(DBusConnection *conn, DBusMessage *msg, void *userdata);
@ -129,6 +131,7 @@ enum property_handler_index {
PROPERTY_HANDLER_DEFAULT_CHANNELS,
PROPERTY_HANDLER_DEFAULT_SAMPLE_FORMAT,
PROPERTY_HANDLER_DEFAULT_SAMPLE_RATE,
PROPERTY_HANDLER_ALTERNATE_SAMPLE_RATE,
PROPERTY_HANDLER_CARDS,
PROPERTY_HANDLER_SINKS,
PROPERTY_HANDLER_FALLBACK_SINK,
@ -154,6 +157,7 @@ static pa_dbus_property_handler property_handlers[PROPERTY_HANDLER_MAX] = {
[PROPERTY_HANDLER_DEFAULT_CHANNELS] = { .property_name = "DefaultChannels", .type = "au", .get_cb = handle_get_default_channels, .set_cb = handle_set_default_channels },
[PROPERTY_HANDLER_DEFAULT_SAMPLE_FORMAT] = { .property_name = "DefaultSampleFormat", .type = "u", .get_cb = handle_get_default_sample_format, .set_cb = handle_set_default_sample_format },
[PROPERTY_HANDLER_DEFAULT_SAMPLE_RATE] = { .property_name = "DefaultSampleRate", .type = "u", .get_cb = handle_get_default_sample_rate, .set_cb = handle_set_default_sample_rate },
[PROPERTY_HANDLER_ALTERNATE_SAMPLE_RATE] = { .property_name = "AlternateSampleRate", .type = "u", .get_cb = handle_get_alternate_sample_rate, .set_cb = handle_set_alternate_sample_rate },
[PROPERTY_HANDLER_CARDS] = { .property_name = "Cards", .type = "ao", .get_cb = handle_get_cards, .set_cb = NULL },
[PROPERTY_HANDLER_SINKS] = { .property_name = "Sinks", .type = "ao", .get_cb = handle_get_sinks, .set_cb = NULL },
[PROPERTY_HANDLER_FALLBACK_SINK] = { .property_name = "FallbackSink", .type = "o", .get_cb = handle_get_fallback_sink, .set_cb = handle_set_fallback_sink },
@ -540,7 +544,8 @@ static void handle_set_default_sample_rate(DBusConnection *conn, DBusMessage *ms
dbus_message_iter_get_basic(iter, &default_sample_rate);
if (default_sample_rate <= 0 || default_sample_rate > PA_RATE_MAX) {
if (default_sample_rate <= 0 || default_sample_rate > PA_RATE_MAX ||
!((default_sample_rate % 4000 == 0) || (default_sample_rate % 11025 == 0))) {
pa_dbus_send_error(conn, msg, DBUS_ERROR_INVALID_ARGS, "Invalid sample rate.");
return;
}
@ -550,6 +555,41 @@ static void handle_set_default_sample_rate(DBusConnection *conn, DBusMessage *ms
pa_dbus_send_empty_reply(conn, msg);
}
static void handle_get_alternate_sample_rate(DBusConnection *conn, DBusMessage *msg, void *userdata) {
pa_dbusiface_core *c = userdata;
dbus_uint32_t alternate_sample_rate;
pa_assert(conn);
pa_assert(msg);
pa_assert(c);
alternate_sample_rate = c->core->alternate_sample_rate;
pa_dbus_send_basic_variant_reply(conn, msg, DBUS_TYPE_UINT32, &alternate_sample_rate);
}
static void handle_set_alternate_sample_rate(DBusConnection *conn, DBusMessage *msg, DBusMessageIter *iter, void *userdata) {
pa_dbusiface_core *c = userdata;
dbus_uint32_t alternate_sample_rate;
pa_assert(conn);
pa_assert(msg);
pa_assert(iter);
pa_assert(c);
dbus_message_iter_get_basic(iter, &alternate_sample_rate);
if (alternate_sample_rate <= 0 || alternate_sample_rate > PA_RATE_MAX ||
!((alternate_sample_rate % 4000 == 0) || (alternate_sample_rate % 11025 == 0))) {
pa_dbus_send_error(conn, msg, DBUS_ERROR_INVALID_ARGS, "Invalid sample rate.");
return;
}
c->core->alternate_sample_rate = alternate_sample_rate;
pa_dbus_send_empty_reply(conn, msg);
}
/* The caller frees the array, but not the strings. */
static const char **get_cards(pa_dbusiface_core *c, unsigned *n) {
const char **cards;
@ -1015,6 +1055,7 @@ static void handle_get_all(DBusConnection *conn, DBusMessage *msg, void *userdat
unsigned n_default_channels;
dbus_uint32_t default_sample_format;
dbus_uint32_t default_sample_rate;
dbus_uint32_t alternate_sample_rate;
const char **cards;
unsigned n_cards;
const char **sinks;
@ -1050,6 +1091,7 @@ static void handle_get_all(DBusConnection *conn, DBusMessage *msg, void *userdat
default_channels = get_default_channels(c, &n_default_channels);
default_sample_format = c->core->default_sample_spec.format;
default_sample_rate = c->core->default_sample_spec.rate;
alternate_sample_rate = c->core->alternate_sample_rate;
cards = get_cards(c, &n_cards);
sinks = get_sinks(c, &n_sinks);
fallback_sink = c->fallback_sink
@ -1082,6 +1124,7 @@ static void handle_get_all(DBusConnection *conn, DBusMessage *msg, void *userdat
pa_dbus_append_basic_array_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_DEFAULT_CHANNELS].property_name, DBUS_TYPE_UINT32, default_channels, n_default_channels);
pa_dbus_append_basic_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_DEFAULT_SAMPLE_FORMAT].property_name, DBUS_TYPE_UINT32, &default_sample_format);
pa_dbus_append_basic_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_DEFAULT_SAMPLE_RATE].property_name, DBUS_TYPE_UINT32, &default_sample_rate);
pa_dbus_append_basic_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_ALTERNATE_SAMPLE_RATE].property_name, DBUS_TYPE_UINT32, &alternate_sample_rate);
pa_dbus_append_basic_array_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_CARDS].property_name, DBUS_TYPE_OBJECT_PATH, cards, n_cards);
pa_dbus_append_basic_array_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_SINKS].property_name, DBUS_TYPE_OBJECT_PATH, sinks, n_sinks);