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pw-cat: use metadata to tag default device

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This commit is contained in:
Wim Taymans 2020-08-10 17:45:45 +02:00
parent 5e9091a285
commit a3350d44eb
1 changed files with 88 additions and 38 deletions
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74
src/tools/pw-cat.c
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@ -46,6 +46,7 @@
#include <pipewire/pipewire.h>
#include <pipewire/global.h>
#include <extensions/metadata.h>
#include "midifile.h"
@ -101,6 +102,11 @@ struct data {
struct spa_hook core_listener;
struct pw_registry *registry;
struct spa_hook registry_listener;
struct pw_metadata *metadata;
struct spa_hook metadata_listener;
uint32_t default_sink;
uint32_t default_source;
struct pw_stream *stream;
struct spa_hook stream_listener;
@ -140,6 +146,7 @@ struct data {
bool list_targets;
bool targets_listed;
struct spa_list targets;
int sync;
struct spa_io_position *position;
bool drained;
@ -615,7 +622,7 @@ static void on_core_done(void *userdata, uint32_t id, int seq)
printf("core done\n");
/* if we're listing targets just exist */
if (data->list_targets) {
if (data->sync == seq && data->list_targets) {
data->targets_listed = true;
pw_main_loop_quit(data->loop);
}
@ -638,6 +645,27 @@ static const struct pw_core_events core_events = {
.error = on_core_error,
};
static int metadata_property(void *object,
uint32_t subject, const char *key, const char *type, const char *value)
{
struct data *data = object;
uint32_t val;
if (key && strcmp(key, "default.audio.sink") == 0) {
val = value ? (uint32_t)atoi(value) : SPA_ID_INVALID;
data->default_sink = val;
} else if (key && strcmp(key, "default.audio.source") == 0) {
val = value ? (uint32_t)atoi(value) : SPA_ID_INVALID;
data->default_source = val;
}
return 0;
}
static const struct pw_metadata_events metadata_events = {
PW_VERSION_METADATA_EVENTS,
.property = metadata_property,
};
static void registry_event_global(void *userdata, uint32_t id,
uint32_t permissions, const char *type, uint32_t version,
const struct spa_dict *props)
@ -654,9 +682,22 @@ static void registry_event_global(void *userdata, uint32_t id,
return;
/* must be listing targets and interface must be a node */
if (!data->list_targets || strcmp(type, PW_TYPE_INTERFACE_Node))
if (!data->list_targets)
return;
if (strcmp(type, PW_TYPE_INTERFACE_Metadata) == 0) {
if (data->metadata != NULL)
return;
data->metadata = pw_registry_bind(data->registry,
id, type, PW_VERSION_METADATA, 0);
pw_metadata_add_listener(data->metadata,
&data->metadata_listener,
&metadata_events, data);
data->sync = pw_core_sync(data->core, 0, data->sync);
} else if (strcmp(type, PW_TYPE_INTERFACE_Node) == 0) {
name = spa_dict_lookup(props, PW_KEY_NODE_NAME);
desc = spa_dict_lookup(props, PW_KEY_NODE_DESCRIPTION);
media_class = spa_dict_lookup(props, PW_KEY_MEDIA_CLASS);
@ -692,6 +733,7 @@ static void registry_event_global(void *userdata, uint32_t id,
if (target)
spa_list_append(&data->targets, &target->link);
}
}
static void registry_event_global_remove(void *userdata, uint32_t id)
{
@ -1231,6 +1273,9 @@ int main(int argc, char *argv[])
else
prog = argv[0];
data.default_source = SPA_ID_INVALID;
data.default_sink = SPA_ID_INVALID;
/* prime the mode from the program name */
if (!strcmp(prog, "pw-play"))
data.mode = mode_playback;
@ -1465,7 +1510,7 @@ int main(int argc, char *argv[])
}
pw_registry_add_listener(data.registry, &data.registry_listener, &registry_events, &data);
pw_core_sync(data.core, 0, 0);
data.sync = pw_core_sync(data.core, 0, data.sync);
if (!data.list_targets) {
struct spa_audio_info_raw info;
@ -1556,24 +1601,27 @@ int main(int argc, char *argv[])
exit_code = EXIT_SUCCESS;
} else {
if (data.targets_listed) {
uint32_t default_id;
default_id = (data.mode == mode_record) ?
data.default_source : data.default_sink;
exit_code = EXIT_SUCCESS;
/* first find the highest priority */
target_default = NULL;
spa_list_for_each(target, &data.targets, link) {
if (!target_default) {
target_default = target;
continue;
}
if (target->prio > target_default->prio)
if (target_default == NULL ||
default_id == target->id ||
(default_id == SPA_ID_INVALID &&
target->prio > target_default->prio))
target_default = target;
}
printf("Available targets (\"*\" denotes default):\n");
printf("Available targets (\"*\" denotes default): %d\n", default_id);
spa_list_for_each(target, &data.targets, link) {
printf("%s\t%"PRIu32": name=\"%s\" description=\"%s\" prio=%d\n",
printf("%s\t%"PRIu32": description=\"%s\" prio=%d\n",
target == target_default ? "*" : "",
target->id, target->name, target->desc, target->prio);
target->id, target->desc, target->prio);
}
}
}
@ -1589,6 +1637,8 @@ error_connect_fail:
if (data.stream)
pw_stream_destroy(data.stream);
error_no_stream:
if (data.metadata)
pw_proxy_destroy((struct pw_proxy*)data.metadata);
if (data.registry)
pw_proxy_destroy((struct pw_proxy*)data.registry);
error_no_registry: