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interfaces: add subscribe params method

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Add a node subscribe params method that automatically emits the new
params when they change so that we can avoid an enum_params.
Use this in the stream object.

Remove the control messages to update controls in stream, use the
set_param. This is more overhead but allows for notifications to other
clients.

Make it possible to update many controls in one go.
This commit is contained in:
Wim Taymans 2019-03-18 16:12:27 +01:00
parent b163dc9114
commit ae7e60d790
6 changed files with 201 additions and 92 deletions
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34
src/modules/module-protocol-native/protocol-native.c
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@ -970,6 +970,38 @@ static int node_demarshal_param(void *object, void *data, size_t size)
seq, id, index, next, param);
}
static int node_marshal_subscribe_params(void *object, uint32_t *ids, uint32_t n_ids)
{
struct pw_proxy *proxy = object;
struct spa_pod_builder *b;
b = pw_protocol_native_begin_proxy(proxy, PW_NODE_PROXY_METHOD_SUBSCRIBE_PARAMS, NULL);
spa_pod_builder_add_struct(b,
SPA_POD_Array(sizeof(uint32_t), SPA_TYPE_Id, n_ids, ids));
return pw_protocol_native_end_proxy(proxy, b);
}
static int node_demarshal_subscribe_params(void *object, void *data, size_t size)
{
struct pw_resource *resource = object;
struct spa_pod_parser prs;
uint32_t csize, ctype, n_ids;
uint32_t *ids;
spa_pod_parser_init(&prs, data, size);
if (spa_pod_parser_get_struct(&prs,
SPA_POD_Array(&csize, &ctype, &n_ids, &ids)) < 0)
return -EINVAL;
if (ctype != SPA_TYPE_Id)
return -EINVAL;
return pw_resource_do(resource, struct pw_node_proxy_methods, subscribe_params, 0,
ids, n_ids);
}
static int node_marshal_enum_params(void *object, int seq, uint32_t id,
uint32_t index, uint32_t num, const struct spa_pod *filter)
{
@ -1769,12 +1801,14 @@ static const struct pw_protocol_marshal pw_protocol_native_device_marshal = {
static const struct pw_node_proxy_methods pw_protocol_native_node_method_marshal = {
PW_VERSION_NODE_PROXY_METHODS,
&node_marshal_subscribe_params,
&node_marshal_enum_params,
&node_marshal_set_param,
&node_marshal_send_command,
};
static const struct pw_protocol_native_demarshal pw_protocol_native_node_method_demarshal[] = {
{ &node_demarshal_subscribe_params, 0, },
{ &node_demarshal_enum_params, 0, },
{ &node_demarshal_set_param, PW_PERM_W, },
{ &node_demarshal_send_command, PW_PERM_W, },