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node: add port and node params

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Add a new struct spa_param_info that lists the available params on
a node/port and if they are readable/writable/updated. We can use
this to replace and improve the PARAM_List and also to notify
property change and updates.

Update elements and code to deal with this new param stuff. Add
port and node info to most elements and signal changes.

Use async enum_params in -inspect and use the param info to know
which ones to enumerate.

Use the port info to know what parameters to update in the
remote-node.
This commit is contained in:
Wim Taymans 2019-02-27 16:43:01 +01:00
parent 3d25adc598
commit 499dd3ff22
52 changed files with 1979 additions and 1461 deletions
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36
src/modules/module-client-node/client-stream.c
View file

@ -137,20 +137,6 @@ static int impl_node_enum_params(struct spa_node *node, int seq,
spa_pod_builder_init(&b, buffer, sizeof(buffer));
switch (id) {
case SPA_PARAM_List:
{
uint32_t list[] = { SPA_PARAM_Props,
SPA_PARAM_EnumFormat,
SPA_PARAM_Format };
if (result.index < SPA_N_ELEMENTS(list))
param = spa_pod_builder_add_object(&b,
SPA_TYPE_OBJECT_ParamList, id,
SPA_PARAM_LIST_id, SPA_POD_Id(list[result.index]));
else
return 0;
break;
}
case SPA_PARAM_Props:
if (impl->adapter == impl->cnode)
return 0;
@ -326,6 +312,26 @@ static const struct spa_node_callbacks adapter_node_callbacks = {
.result = adapter_result,
};
static void emit_node_info(struct node *this)
{
if (this->callbacks && this->callbacks->info) {
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;
this->callbacks->info(this->callbacks_data, &info);
}
}
static int
impl_node_set_callbacks(struct spa_node *node,
const struct spa_node_callbacks *callbacks,
@ -342,6 +348,8 @@ impl_node_set_callbacks(struct spa_node *node,
this->callbacks = callbacks;
this->callbacks_data = data;
emit_node_info(this);
if (this->callbacks && impl->adapter && impl->adapter != impl->cnode)
spa_node_set_callbacks(impl->adapter, &adapter_node_callbacks, impl);