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node: Add port_info event

Browse source 
Add a port_info event. With this, we get updates to ports pushed to
us, which is more convenient and also allows for better dynamic
add/remove of ports.
We don't need to the PortChanged event anymore
We can remove the get_port_ids/get_n_ports/port_get_info methods.
Update plugins
This commit is contained in:
Wim Taymans 2019-02-14 17:08:46 +01:00
parent 3c78036a97
commit 21957e9e8d
37 changed files with 1068 additions and 2288 deletions
Download patch file Download diff file Expand all files Collapse all files

117
spa/plugins/volume/volume.c
View file

@ -240,6 +240,15 @@ static int impl_node_send_command(struct spa_node *node, const struct spa_comman
return 0;
}
static void emit_port_info(struct impl *this, enum spa_direction direction, uint32_t id)
{
struct port *port = GET_PORT(this, direction, id);
if (this->callbacks && this->callbacks->port_info && port->info.change_mask) {
this->callbacks->port_info(this->callbacks_data, direction, id, &port->info);
port->info.change_mask = 0;
}
}
static int
impl_node_set_callbacks(struct spa_node *node,
const struct spa_node_callbacks *callbacks,
@ -254,48 +263,12 @@ impl_node_set_callbacks(struct spa_node *node,
this->callbacks = callbacks;
this->callbacks_data = data;
return 0;
}
static int
impl_node_get_n_ports(struct spa_node *node,
uint32_t *n_input_ports,
uint32_t *max_input_ports,
uint32_t *n_output_ports,
uint32_t *max_output_ports)
{
spa_return_val_if_fail(node != NULL, -EINVAL);
if (n_input_ports)
*n_input_ports = 1;
if (max_input_ports)
*max_input_ports = 1;
if (n_output_ports)
*n_output_ports = 1;
if (max_output_ports)
*max_output_ports = 1;
emit_port_info(this, SPA_DIRECTION_INPUT, 0);
emit_port_info(this, SPA_DIRECTION_OUTPUT, 0);
return 0;
}
static int
impl_node_get_port_ids(struct spa_node *node,
uint32_t *input_ids,
uint32_t n_input_ids,
uint32_t *output_ids,
uint32_t n_output_ids)
{
spa_return_val_if_fail(node != NULL, -EINVAL);
if (n_input_ids > 0 && input_ids)
input_ids[0] = 0;
if (n_output_ids > 0 && output_ids)
output_ids[0] = 0;
return 0;
}
static int impl_node_add_port(struct spa_node *node, enum spa_direction direction, uint32_t port_id)
{
return -ENOTSUP;
@ -307,28 +280,6 @@ impl_node_remove_port(struct spa_node *node, enum spa_direction direction, uint3
return -ENOTSUP;
}
static int
impl_node_port_get_info(struct spa_node *node,
enum spa_direction direction,
uint32_t port_id,
const struct spa_port_info **info)
{
struct impl *this;
struct port *port;
spa_return_val_if_fail(node != NULL, -EINVAL);
spa_return_val_if_fail(info != NULL, -EINVAL);
this = SPA_CONTAINER_OF(node, struct impl, node);
spa_return_val_if_fail(CHECK_PORT(this, direction, port_id), -EINVAL);
port = GET_PORT(this, direction, port_id);
*info = &port->info;
return 0;
}
static int port_enum_formats(struct spa_node *node,
enum spa_direction direction, uint32_t port_id,
uint32_t *index,
@ -785,23 +736,20 @@ static int impl_node_process(struct spa_node *node)
static const struct spa_node impl_node = {
SPA_VERSION_NODE,
impl_node_enum_params,
impl_node_set_param,
impl_node_set_io,
impl_node_send_command,
impl_node_set_callbacks,
impl_node_get_n_ports,
impl_node_get_port_ids,
impl_node_add_port,
impl_node_remove_port,
impl_node_port_get_info,
impl_node_port_enum_params,
impl_node_port_set_param,
impl_node_port_use_buffers,
impl_node_port_alloc_buffers,
impl_node_port_set_io,
impl_node_port_reuse_buffer,
impl_node_process,
.enum_params = impl_node_enum_params,
.set_param = impl_node_set_param,
.set_io = impl_node_set_io,
.send_command = impl_node_send_command,
.set_callbacks = impl_node_set_callbacks,
.add_port = impl_node_add_port,
.remove_port = impl_node_remove_port,
.port_enum_params = impl_node_port_enum_params,
.port_set_param = impl_node_port_set_param,
.port_use_buffers = impl_node_port_use_buffers,
.port_alloc_buffers = impl_node_port_alloc_buffers,
.port_set_io = impl_node_port_set_io,
.port_reuse_buffer = impl_node_port_reuse_buffer,
.process = impl_node_process,
};
static int impl_get_interface(struct spa_handle *handle, uint32_t type, void **interface)
@ -841,6 +789,7 @@ impl_init(const struct spa_handle_factory *factory,
uint32_t n_support)
{
struct impl *this;
struct port *port;
uint32_t i;
spa_return_val_if_fail(factory != NULL, -EINVAL);
@ -859,13 +808,19 @@ impl_init(const struct spa_handle_factory *factory,
this->node = impl_node;
reset_props(&this->props);
this->in_ports[0].info.flags = SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS |
port = GET_IN_PORT(this, 0);
port->info = SPA_PORT_INFO_INIT();
port->info.change_mask = SPA_PORT_CHANGE_MASK_FLAGS;
port->info.flags = SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS |
SPA_PORT_INFO_FLAG_IN_PLACE;
spa_list_init(&this->in_ports[0].empty);
spa_list_init(&port->empty);
this->out_ports[0].info.flags = SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS |
port = GET_OUT_PORT(this, 0);
port->info = SPA_PORT_INFO_INIT();
port->info.change_mask = SPA_PORT_CHANGE_MASK_FLAGS;
port->info.flags = SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS |
SPA_PORT_INFO_FLAG_NO_REF;
spa_list_init(&this->out_ports[0].empty);
spa_list_init(&port->empty);
return 0;
}