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client-stream: implement enum_param and set_param better

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Make it possible to enumerate the parameters and get/set properties
when available on the adapter.
This commit is contained in:
Wim Taymans 2018-10-18 12:59:31 +02:00
parent c0a6c83227
commit 842abad9e1
1 changed files with 52 additions and 3 deletions
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55
src/modules/module-client-node/client-stream.c
View file

@ -31,6 +31,7 @@
#include <spa/node/node.h>
#include <spa/buffer/alloc.h>
#include <spa/pod/parser.h>
#include <spa/pod/filter.h>
#include <spa/param/audio/format-utils.h>
#include "pipewire/pipewire.h"
@ -110,18 +111,60 @@ static int impl_node_enum_params(struct spa_node *node,
{
struct node *this;
struct impl *impl;
int res;
struct spa_pod *param;
struct spa_pod_builder b = { 0 };
uint8_t buffer[1024];
spa_return_val_if_fail(node != NULL, -EINVAL);
spa_return_val_if_fail(index != NULL, -EINVAL);
spa_return_val_if_fail(builder != NULL, -EINVAL);
this = SPA_CONTAINER_OF(node, struct node, node);
impl = this->impl;
res = spa_node_port_enum_params(impl->cnode,
next:
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 (*index < SPA_N_ELEMENTS(list))
param = spa_pod_builder_object(&b,
SPA_TYPE_OBJECT_ParamList, id,
SPA_PARAM_LIST_id, &SPA_POD_Id(list[*index]),
0);
else
return 0;
break;
}
case SPA_PARAM_Props:
if (impl->adapter != impl->cnode) {
return spa_node_enum_params(impl->adapter,
id, index,
filter, result, builder);
}
return 0;
case SPA_PARAM_EnumFormat:
case SPA_PARAM_Format:
return spa_node_port_enum_params(impl->cnode,
impl->direction, 0,
id, index,
filter, result, builder);
return res;
default:
return -ENOENT;
}
(*index)++;
if (spa_pod_filter(builder, result, param, filter) < 0)
goto next;
return 1;
}
static void try_link_controls(struct impl *impl)
@ -183,6 +226,12 @@ static int impl_node_set_param(struct spa_node *node, uint32_t id, uint32_t flag
try_link_controls(impl);
}
break;
case SPA_PARAM_Props:
if (impl->adapter != impl->cnode) {
if ((res = spa_node_set_param(impl->adapter, id, flags, param)) < 0)
return res;
}
break;
default:
res = -ENOTSUP;
break;