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node: Add id to set_io

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Make it possible to configure multiple io areas on a port by giving
an id to set_io.
Add some types to enumerate the supported ids
Make an area to exchange buffers and one to specify pull ranges.
The idea is to make more area types for controlable properties.
Implement enumeration of IO areas in volume.
This commit is contained in:
Wim Taymans 2017-11-21 19:34:37 +01:00
parent 4288a634f4
commit 8efea3e1ea
40 changed files with 583 additions and 208 deletions
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12
src/examples/local-v4l2.c
View file

@ -26,6 +26,7 @@
#include <spa/param/format-utils.h>
#include <spa/param/video/format-utils.h>
#include <spa/param/props.h>
#include <spa/node/io.h>
#include <spa/lib/debug.h>
#include <pipewire/pipewire.h>
@ -79,7 +80,7 @@ struct data {
struct pw_link *link;
struct spa_node impl_node;
struct spa_port_io *io;
struct spa_io_buffers *io;
const struct spa_node_callbacks *callbacks;
void *callbacks_data;
@ -210,10 +211,15 @@ static int impl_get_port_ids(struct spa_node *node,
}
static int impl_port_set_io(struct spa_node *node, enum spa_direction direction, uint32_t port_id,
struct spa_port_io *io)
uint32_t id, void *io)
{
struct data *d = SPA_CONTAINER_OF(node, struct data, impl_node);
d->io = io;
if (id == d->t->io.Buffers)
d->io = io;
else
return -ENOENT;
return 0;
}