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restore-stream: expose stream restore info in metadata

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This commit is contained in:
Wim Taymans 2020-11-20 18:01:20 +01:00
parent 5af2efdaa6
commit b922f99293
1 changed files with 25 additions and 6 deletions
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31
src/examples/media-session/restore-stream.c
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@ -57,6 +57,7 @@ struct impl {
struct pw_context *context;
struct spa_source *idle_timeout;
struct pw_metadata *metadata;
struct spa_hook meta_listener;
struct pw_properties *props;
@ -163,10 +164,19 @@ static char *serialize_props(struct stream *str, const struct spa_pod *param)
return ptr;
}
static void sync_metadata(struct impl *impl)
{
const struct spa_dict_item *it;
spa_dict_for_each(it, &impl->props->dict)
pw_metadata_set_property(impl->metadata, 0, it->key, "Spa:String", it->value);
}
static int handle_props(struct stream *str, struct sm_param *p)
{
struct impl *impl = str->impl;
const char *key;
int changed = 0;
key = str->key;
if (key == NULL)
@ -175,10 +185,12 @@ static int handle_props(struct stream *str, struct sm_param *p)
if (p->param) {
char *val = serialize_props(str, p->param);
pw_log_debug("stream %d: current props %s %s", str->id, key, val);
pw_properties_set(impl->props, key, val);
changed += pw_properties_set(impl->props, key, val);
free(val);
add_idle_timeout(impl);
}
if (changed)
sync_metadata(impl);
return 0;
}
@ -402,19 +414,26 @@ int sm_restore_stream_start(struct sm_media_session *session)
impl->context = session->context;
impl->props = pw_properties_new(NULL, NULL);
if (impl->props == NULL) {
res = -errno;
goto exit_free;
}
if (impl->props == NULL)
goto exit_errno;
impl->metadata = sm_media_session_export_metadata(session, "route-settings");
if (impl->metadata == NULL)
goto exit_errno;
if ((res = sm_media_session_load_state(impl->session, SESSION_KEY, impl->props)) < 0)
pw_log_info("can't load "SESSION_KEY" state: %s", spa_strerror(res));
sync_metadata(impl);
sm_media_session_add_listener(impl->session, &impl->listener, &session_events, impl);
return 0;
exit_free:
exit_errno:
res = -errno;
if (impl->props)
pw_properties_free(impl->props);
free(impl);
return res;
}