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client-stream: emit property change events

Browse source 
Emit a property (param) change event when the volume or mute is
changed on a stream.
This commit is contained in:
Wim Taymans 2019-03-14 16:40:17 +01:00
parent 306f0dd964
commit 3fb9fa06a9
2 changed files with 52 additions and 33 deletions
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49
src/modules/module-client-node/client-stream.c
View file

@ -67,6 +67,10 @@ struct node {
struct spa_log *log;
uint64_t info_all;
struct spa_node_info info;
struct spa_param_info params[4];
struct spa_hook_list hooks;
const struct spa_node_callbacks *callbacks;
void *callbacks_data;
@ -210,6 +214,16 @@ static void try_link_controls(struct impl *impl)
}
}
static void emit_node_info(struct node *this, bool full)
{
if (full)
this->info.change_mask = this->info_all;
if (this->info.change_mask) {
spa_node_emit_info(&this->hooks, &this->info);
this->info.change_mask = 0;
}
}
static int impl_node_set_param(struct spa_node *node, uint32_t id, uint32_t flags,
const struct spa_pod *param)
{
@ -236,6 +250,10 @@ static int impl_node_set_param(struct spa_node *node, uint32_t id, uint32_t flag
if (impl->adapter && impl->adapter != impl->cnode) {
if ((res = spa_node_set_param(impl->adapter, id, flags, param)) < 0)
return res;
this->info.change_mask = SPA_NODE_CHANGE_MASK_PARAMS;
this->params[1].flags ^= SPA_PARAM_INFO_SERIAL;
emit_node_info(this, false);
}
break;
default:
@ -314,24 +332,6 @@ static const struct spa_node_events adapter_node_events = {
.result = adapter_result,
};
static void emit_node_info(struct node *this)
{
struct spa_node_info info;
struct spa_param_info params[4];
info = SPA_NODE_INFO_INIT();
info.max_input_ports = 0;
info.max_output_ports = 0;
info.change_mask |= SPA_NODE_CHANGE_MASK_PARAMS;
params[0] = SPA_PARAM_INFO(SPA_PARAM_EnumFormat, SPA_PARAM_INFO_READ);
params[1] = SPA_PARAM_INFO(SPA_PARAM_Props, SPA_PARAM_INFO_READWRITE);
params[2] = SPA_PARAM_INFO(SPA_PARAM_Format, SPA_PARAM_INFO_READ);
params[3] = SPA_PARAM_INFO(SPA_PARAM_Profile, SPA_PARAM_INFO_WRITE);
info.params = params;
info.n_params = 4;
spa_node_emit_info(&this->hooks, &info);
}
static int impl_node_add_listener(struct spa_node *node,
struct spa_hook *listener,
const struct spa_node_events *events,
@ -350,7 +350,7 @@ static int impl_node_add_listener(struct spa_node *node,
pw_log_debug("%p: add listener %p", this, listener);
spa_hook_list_isolate(&this->hooks, &save, listener, events, data);
emit_node_info(this);
emit_node_info(this, true);
if (impl->adapter && impl->adapter != impl->cnode) {
spa_zero(l);
@ -923,6 +923,17 @@ node_init(struct node *this,
this->node = impl_node;
spa_hook_list_init(&this->hooks);
this->info_all = SPA_NODE_CHANGE_MASK_PARAMS;
this->info = SPA_NODE_INFO_INIT();
this->info.max_input_ports = 0;
this->info.max_output_ports = 0;
this->params[0] = SPA_PARAM_INFO(SPA_PARAM_EnumFormat, SPA_PARAM_INFO_READ);
this->params[1] = SPA_PARAM_INFO(SPA_PARAM_Props, SPA_PARAM_INFO_READWRITE);
this->params[2] = SPA_PARAM_INFO(SPA_PARAM_Format, SPA_PARAM_INFO_READ);
this->params[3] = SPA_PARAM_INFO(SPA_PARAM_Profile, SPA_PARAM_INFO_WRITE);
this->info.params = this->params;
this->info.n_params = 4;
return 0;
}