device-manager: Reroute streams when they change allowing the media.role to be updated mid-stream.

We do not handle the _EVENT_NEW subscription here as the PA_CORE_HOOK_SINK_INPUT_NEW/PA_CORE_HOOK_SOURCE_OUTPUT_NEW
hook should handle the initial routing.
This commit is contained in:
Colin Guthrie 2009-09-20 21:19:41 +01:00
parent d3460e3498
commit 1d43230006

View file

@ -221,6 +221,16 @@ static pa_bool_t entries_equal(const struct entry *a, const struct entry *b) {
return TRUE;
}
static char *get_name(const char *key, const char *prefix) {
char *t;
if (strncmp(key, prefix, strlen(prefix)))
return NULL;
t = pa_xstrdup(key + strlen(prefix));
return t;
}
static inline struct entry *load_or_initialize_entry(struct userdata *u, struct entry *entry, const char *name, const char *prefix) {
struct entry *old;
@ -275,139 +285,6 @@ static inline struct entry *load_or_initialize_entry(struct userdata *u, struct
return old;
}
static void subscribe_callback(pa_core *c, pa_subscription_event_type_t t, uint32_t idx, void *userdata) {
struct userdata *u = userdata;
struct entry entry, *old = NULL;
char *name = NULL;
pa_datum key, data;
pa_assert(c);
pa_assert(u);
if (t != (PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_NEW) &&
t != (PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE) &&
t != (PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_NEW) &&
t != (PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE))
return;
pa_zero(entry);
entry.version = ENTRY_VERSION;
if ((t & PA_SUBSCRIPTION_EVENT_FACILITY_MASK) == PA_SUBSCRIPTION_EVENT_SINK) {
pa_sink *sink;
if (!(sink = pa_idxset_get_by_index(c->sinks, idx)))
return;
name = pa_sprintf_malloc("sink:%s", sink->name);
old = load_or_initialize_entry(u, &entry, name, "sink:");
pa_strlcpy(entry.description, pa_strnull(pa_proplist_gets(sink->proplist, PA_PROP_DEVICE_DESCRIPTION)), sizeof(entry.description));
} else {
pa_source *source;
pa_assert((t & PA_SUBSCRIPTION_EVENT_FACILITY_MASK) == PA_SUBSCRIPTION_EVENT_SOURCE);
if (!(source = pa_idxset_get_by_index(c->sources, idx)))
return;
if (source->monitor_of)
return;
name = pa_sprintf_malloc("source:%s", source->name);
old = load_or_initialize_entry(u, &entry, name, "source:");
pa_strlcpy(entry.description, pa_strnull(pa_proplist_gets(source->proplist, PA_PROP_DEVICE_DESCRIPTION)), sizeof(entry.description));
}
if (old) {
if (entries_equal(old, &entry)) {
pa_xfree(old);
pa_xfree(name);
return;
}
pa_xfree(old);
}
key.data = name;
key.size = strlen(name);
data.data = &entry;
data.size = sizeof(entry);
pa_log_info("Storing device %s.", name);
pa_database_set(u->database, &key, &data, TRUE);
pa_xfree(name);
trigger_save(u);
}
static pa_hook_result_t sink_new_hook_callback(pa_core *c, pa_sink_new_data *new_data, struct userdata *u) {
char *name;
struct entry *e;
pa_assert(c);
pa_assert(new_data);
pa_assert(u);
name = pa_sprintf_malloc("sink:%s", new_data->name);
if ((e = read_entry(u, name))) {
if (strncmp(e->description, pa_proplist_gets(new_data->proplist, PA_PROP_DEVICE_DESCRIPTION), sizeof(e->description)) != 0) {
pa_log_info("Restoring description for sink %s.", new_data->name);
pa_proplist_sets(new_data->proplist, PA_PROP_DEVICE_DESCRIPTION, e->description);
}
pa_xfree(e);
}
pa_xfree(name);
return PA_HOOK_OK;
}
static pa_hook_result_t source_new_hook_callback(pa_core *c, pa_source_new_data *new_data, struct userdata *u) {
char *name;
struct entry *e;
pa_assert(c);
pa_assert(new_data);
pa_assert(u);
name = pa_sprintf_malloc("source:%s", new_data->name);
if ((e = read_entry(u, name))) {
if (strncmp(e->description, pa_proplist_gets(new_data->proplist, PA_PROP_DEVICE_DESCRIPTION), sizeof(e->description)) != 0) {
/* NB, We cannot detect if we are a monitor here... this could mess things up a bit... */
pa_log_info("Restoring description for source %s.", new_data->name);
pa_proplist_sets(new_data->proplist, PA_PROP_DEVICE_DESCRIPTION, e->description);
}
pa_xfree(e);
}
pa_xfree(name);
return PA_HOOK_OK;
}
static char *get_name(const char *key, const char *prefix) {
char *t;
if (strncmp(key, prefix, strlen(prefix)))
return NULL;
t = pa_xstrdup(key + strlen(prefix));
return t;
}
static uint32_t get_role_index(const char* role) {
pa_assert(role);
@ -521,84 +398,6 @@ static void update_highest_priority_device_indexes(struct userdata *u, const cha
}
static pa_hook_result_t sink_input_new_hook_callback(pa_core *c, pa_sink_input_new_data *new_data, struct userdata *u) {
pa_assert(c);
pa_assert(new_data);
pa_assert(u);
if (!u->do_routing)
return PA_HOOK_OK;
if (new_data->sink)
pa_log_debug("Not restoring device for stream, because already set.");
else {
const char *role;
uint32_t role_index;
if (!(role = pa_proplist_gets(new_data->proplist, PA_PROP_MEDIA_ROLE)))
role_index = get_role_index("");
else
role_index = get_role_index(role);
if (PA_INVALID_INDEX != role_index) {
uint32_t device_index;
device_index = u->preferred_sinks[role_index];
if (PA_INVALID_INDEX != device_index) {
pa_sink *sink;
if ((sink = pa_idxset_get_by_index(u->core->sinks, device_index))) {
new_data->sink = sink;
new_data->save_sink = TRUE;
}
}
}
}
return PA_HOOK_OK;
}
static pa_hook_result_t source_output_new_hook_callback(pa_core *c, pa_source_output_new_data *new_data, struct userdata *u) {
pa_assert(c);
pa_assert(new_data);
pa_assert(u);
if (!u->do_routing)
return PA_HOOK_OK;
if (new_data->direct_on_input)
return PA_HOOK_OK;
if (new_data->source)
pa_log_debug("Not restoring device for stream, because already set");
else {
const char *role;
uint32_t role_index;
if (!(role = pa_proplist_gets(new_data->proplist, PA_PROP_MEDIA_ROLE)))
role_index = get_role_index("");
else
role_index = get_role_index(role);
if (PA_INVALID_INDEX != role_index) {
uint32_t device_index;
device_index = u->preferred_sources[role_index];
if (PA_INVALID_INDEX != device_index) {
pa_source *source;
if ((source = pa_idxset_get_by_index(u->core->sources, device_index))) {
new_data->source = source;
new_data->save_source = TRUE;
}
}
}
}
return PA_HOOK_OK;
}
static void route_sink_input(struct userdata *u, pa_sink_input *si) {
const char *role;
uint32_t role_index, device_index;
@ -718,6 +517,238 @@ static pa_hook_result_t route_source_outputs(struct userdata *u, pa_source* igno
return PA_HOOK_OK;
}
static void subscribe_callback(pa_core *c, pa_subscription_event_type_t t, uint32_t idx, void *userdata) {
struct userdata *u = userdata;
struct entry entry, *old = NULL;
char *name = NULL;
pa_datum key, data;
pa_assert(c);
pa_assert(u);
if (t != (PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_NEW) &&
t != (PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE) &&
t != (PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_NEW) &&
t != (PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE) &&
/*t != (PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_NEW) &&*/
t != (PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE) &&
/*t != (PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_NEW) &&*/
t != (PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE))
return;
pa_zero(entry);
entry.version = ENTRY_VERSION;
if ((t & PA_SUBSCRIPTION_EVENT_FACILITY_MASK) == PA_SUBSCRIPTION_EVENT_SINK_INPUT) {
pa_sink_input *si;
if (!u->do_routing)
return;
if (!(si = pa_idxset_get_by_index(c->sink_inputs, idx)))
return;
/* The role may change mid-stream, so we reroute */
route_sink_input(u, si);
return;
} else if ((t & PA_SUBSCRIPTION_EVENT_FACILITY_MASK) == PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT) {
pa_source_output *so;
if (!u->do_routing)
return;
if (!(so = pa_idxset_get_by_index(c->source_outputs, idx)))
return;
/* The role may change mid-stream, so we reroute */
route_source_output(u, so);
return;
} else if ((t & PA_SUBSCRIPTION_EVENT_FACILITY_MASK) == PA_SUBSCRIPTION_EVENT_SINK) {
pa_sink *sink;
if (!(sink = pa_idxset_get_by_index(c->sinks, idx)))
return;
name = pa_sprintf_malloc("sink:%s", sink->name);
old = load_or_initialize_entry(u, &entry, name, "sink:");
pa_strlcpy(entry.description, pa_strnull(pa_proplist_gets(sink->proplist, PA_PROP_DEVICE_DESCRIPTION)), sizeof(entry.description));
} else if ((t & PA_SUBSCRIPTION_EVENT_FACILITY_MASK) == PA_SUBSCRIPTION_EVENT_SOURCE) {
pa_source *source;
pa_assert((t & PA_SUBSCRIPTION_EVENT_FACILITY_MASK) == PA_SUBSCRIPTION_EVENT_SOURCE);
if (!(source = pa_idxset_get_by_index(c->sources, idx)))
return;
if (source->monitor_of)
return;
name = pa_sprintf_malloc("source:%s", source->name);
old = load_or_initialize_entry(u, &entry, name, "source:");
pa_strlcpy(entry.description, pa_strnull(pa_proplist_gets(source->proplist, PA_PROP_DEVICE_DESCRIPTION)), sizeof(entry.description));
}
pa_assert(name);
if (old) {
if (entries_equal(old, &entry)) {
pa_xfree(old);
pa_xfree(name);
return;
}
pa_xfree(old);
}
key.data = name;
key.size = strlen(name);
data.data = &entry;
data.size = sizeof(entry);
pa_log_info("Storing device %s.", name);
pa_database_set(u->database, &key, &data, TRUE);
pa_xfree(name);
trigger_save(u);
}
static pa_hook_result_t sink_new_hook_callback(pa_core *c, pa_sink_new_data *new_data, struct userdata *u) {
char *name;
struct entry *e;
pa_assert(c);
pa_assert(new_data);
pa_assert(u);
name = pa_sprintf_malloc("sink:%s", new_data->name);
if ((e = read_entry(u, name))) {
if (strncmp(e->description, pa_proplist_gets(new_data->proplist, PA_PROP_DEVICE_DESCRIPTION), sizeof(e->description)) != 0) {
pa_log_info("Restoring description for sink %s.", new_data->name);
pa_proplist_sets(new_data->proplist, PA_PROP_DEVICE_DESCRIPTION, e->description);
}
pa_xfree(e);
}
pa_xfree(name);
return PA_HOOK_OK;
}
static pa_hook_result_t source_new_hook_callback(pa_core *c, pa_source_new_data *new_data, struct userdata *u) {
char *name;
struct entry *e;
pa_assert(c);
pa_assert(new_data);
pa_assert(u);
name = pa_sprintf_malloc("source:%s", new_data->name);
if ((e = read_entry(u, name))) {
if (strncmp(e->description, pa_proplist_gets(new_data->proplist, PA_PROP_DEVICE_DESCRIPTION), sizeof(e->description)) != 0) {
/* NB, We cannot detect if we are a monitor here... this could mess things up a bit... */
pa_log_info("Restoring description for source %s.", new_data->name);
pa_proplist_sets(new_data->proplist, PA_PROP_DEVICE_DESCRIPTION, e->description);
}
pa_xfree(e);
}
pa_xfree(name);
return PA_HOOK_OK;
}
static pa_hook_result_t sink_input_new_hook_callback(pa_core *c, pa_sink_input_new_data *new_data, struct userdata *u) {
pa_assert(c);
pa_assert(new_data);
pa_assert(u);
if (!u->do_routing)
return PA_HOOK_OK;
if (new_data->sink)
pa_log_debug("Not restoring device for stream, because already set.");
else {
const char *role;
uint32_t role_index;
if (!(role = pa_proplist_gets(new_data->proplist, PA_PROP_MEDIA_ROLE)))
role_index = get_role_index("");
else
role_index = get_role_index(role);
if (PA_INVALID_INDEX != role_index) {
uint32_t device_index;
device_index = u->preferred_sinks[role_index];
if (PA_INVALID_INDEX != device_index) {
pa_sink *sink;
if ((sink = pa_idxset_get_by_index(u->core->sinks, device_index))) {
new_data->sink = sink;
new_data->save_sink = TRUE;
}
}
}
}
return PA_HOOK_OK;
}
static pa_hook_result_t source_output_new_hook_callback(pa_core *c, pa_source_output_new_data *new_data, struct userdata *u) {
pa_assert(c);
pa_assert(new_data);
pa_assert(u);
if (!u->do_routing)
return PA_HOOK_OK;
if (new_data->direct_on_input)
return PA_HOOK_OK;
if (new_data->source)
pa_log_debug("Not restoring device for stream, because already set");
else {
const char *role;
uint32_t role_index;
if (!(role = pa_proplist_gets(new_data->proplist, PA_PROP_MEDIA_ROLE)))
role_index = get_role_index("");
else
role_index = get_role_index(role);
if (PA_INVALID_INDEX != role_index) {
uint32_t device_index;
device_index = u->preferred_sources[role_index];
if (PA_INVALID_INDEX != device_index) {
pa_source *source;
if ((source = pa_idxset_get_by_index(u->core->sources, device_index))) {
new_data->source = source;
new_data->save_source = TRUE;
}
}
}
}
return PA_HOOK_OK;
}
static pa_hook_result_t sink_put_hook_callback(pa_core *c, PA_GCC_UNUSED pa_sink *sink, struct userdata *u) {
pa_assert(c);
pa_assert(u);
@ -1133,7 +1164,7 @@ int pa__init(pa_module*m) {
u->connection_unlink_hook_slot = pa_hook_connect(&pa_native_protocol_hooks(u->protocol)[PA_NATIVE_HOOK_CONNECTION_UNLINK], PA_HOOK_NORMAL, (pa_hook_cb_t) connection_unlink_hook_cb, u);
u->subscription = pa_subscription_new(m->core, PA_SUBSCRIPTION_MASK_SINK|PA_SUBSCRIPTION_MASK_SOURCE, subscribe_callback, u);
u->subscription = pa_subscription_new(m->core, PA_SUBSCRIPTION_MASK_SINK|PA_SUBSCRIPTION_MASK_SOURCE|PA_SUBSCRIPTION_MASK_SINK_INPUT|PA_SUBSCRIPTION_MASK_SOURCE_OUTPUT, subscribe_callback, u);
/* Used to handle device description management */
u->sink_new_hook_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_NEW], PA_HOOK_EARLY, (pa_hook_cb_t) sink_new_hook_callback, u);