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filter: implement enum and set_param on the filter

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This commit is contained in:
Wim Taymans 2021-06-22 16:29:40 +02:00
parent 79866a93cd
commit f5f79cc0b9
1 changed files with 67 additions and 39 deletions
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106
src/pipewire/filter.c
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@ -395,6 +395,69 @@ static bool filter_set_state(struct pw_filter *filter, enum pw_filter_state stat
return res;
}
static int enum_params(struct filter *d, struct spa_list *param_list, int seq,
uint32_t id, uint32_t start, uint32_t num, const struct spa_pod *filter)
{
struct spa_result_node_params result;
uint8_t buffer[1024];
struct spa_pod_builder b = { 0 };
uint32_t count = 0;
struct param *p;
bool found = false;
spa_return_val_if_fail(num != 0, -EINVAL);
result.id = id;
result.next = 0;
pw_log_debug(NAME" %p: %p param id %d (%s) start:%d num:%d", d, param_list, id,
spa_debug_type_find_name(spa_type_param, id),
start, num);
spa_list_for_each(p, param_list, link) {
struct spa_pod *param;
result.index = result.next++;
if (result.index < start)
continue;
param = p->param;
if (param == NULL || p->id != id)
continue;
found = true;
spa_pod_builder_init(&b, buffer, sizeof(buffer));
if (spa_pod_filter(&b, &result.param, param, filter) != 0)
continue;
spa_node_emit_result(&d->hooks, seq, 0, SPA_RESULT_TYPE_NODE_PARAMS, &result);
if (++count == num)
break;
}
return found ? 0 : -ENOENT;
}
static int impl_enum_params(void *object, int seq, uint32_t id, uint32_t start, uint32_t num,
const struct spa_pod *filter)
{
struct filter *impl = object;
return enum_params(impl, &impl->param_list, seq, id, start, num, filter);
}
static int impl_set_param(void *object, uint32_t id, uint32_t flags, const struct spa_pod *param)
{
struct filter *impl = object;
struct pw_filter *filter = &impl->this;
if (id != SPA_PARAM_Props)
return -ENOTSUP;
pw_filter_emit_param_changed(filter, NULL, id, param);
return 0;
}
static int
do_set_position(struct spa_loop *loop,
bool async, uint32_t seq, const void *data, size_t size, void *user_data)
@ -558,48 +621,11 @@ static int impl_port_enum_params(void *object, int seq,
{
struct filter *d = object;
struct port *port;
struct spa_result_node_params result;
uint8_t buffer[1024];
struct spa_pod_builder b = { 0 };
uint32_t count = 0;
struct param *p;
bool found = false;
spa_return_val_if_fail(num != 0, -EINVAL);
result.id = id;
result.next = 0;
if ((port = get_port(d, direction, port_id)) == NULL)
return -EINVAL;
pw_log_debug(NAME" %p: port %p param id %d (%s) start:%d num:%d", d, port, id,
spa_debug_type_find_name(spa_type_param, id),
start, num);
spa_list_for_each(p, &port->param_list, link) {
struct spa_pod *param;
result.index = result.next++;
if (result.index < start)
continue;
param = p->param;
if (param == NULL || p->id != id)
continue;
found = true;
spa_pod_builder_init(&b, buffer, sizeof(buffer));
if (spa_pod_filter(&b, &result.param, param, filter) != 0)
continue;
spa_node_emit_result(&d->hooks, seq, 0, SPA_RESULT_TYPE_NODE_PARAMS, &result);
if (++count == num)
break;
}
return found ? 0 : -ENOENT;
return enum_params(d, &port->param_list, seq, id, start, num, filter);
}
static int update_params(struct filter *impl, struct port *port, uint32_t id,
@ -1067,6 +1093,8 @@ static const struct spa_node_methods impl_node = {
SPA_VERSION_NODE_METHODS,
.add_listener = impl_add_listener,
.set_callbacks = impl_set_callbacks,
.enum_params = impl_enum_params,
.set_param = impl_set_param,
.set_io = impl_set_io,
.send_command = impl_send_command,
.port_set_io = impl_port_set_io,
@ -1441,7 +1469,7 @@ pw_filter_connect(struct pw_filter *filter,
impl->info.flags = impl->process_rt ? SPA_NODE_FLAG_RT : 0;
impl->info.props = &filter->properties->dict;
impl->params[IDX_Props] = SPA_PARAM_INFO(SPA_PARAM_Props, SPA_PARAM_INFO_WRITE);
impl->params[IDX_ProcessLatency] = SPA_PARAM_INFO(SPA_PARAM_ProcessLatency, SPA_PARAM_INFO_WRITE);
impl->params[IDX_ProcessLatency] = SPA_PARAM_INFO(SPA_PARAM_ProcessLatency, 0);
impl->info.params = impl->params;
impl->info.n_params = N_NODE_PARAMS;
impl->info.change_mask = impl->change_mask_all;