Implement JSON configuration file

A JSON configuration file can now be read as "/etc/
pulseaudio-agl.cfg", and a sample one is provided by the
package. If it exists and is valid, it will override the
default configuration.

As a result, the module now depends on json-c.

Change-Id: I3f5deccc6f9b89cbd54bea7004271b8aec727538
Signed-off-by: Manuel Bachmann <manuel.bachmann@iot.bzh>

1 files changed, 1 insertions, 0 deletions

diff --git a/node.h b/node.h
index 837ff5a..1e37d85 100644
--- a/node.h
+++ b/node.h
@@ -105,6 +105,7 @@ int agl_nodeset_add_role (struct userdata *, const char *, agl_node_type, agl_no
 
 agl_node *agl_node_create (struct userdata *, agl_node *);
 void agl_node_destroy (struct userdata *, agl_node *);
+agl_node_type agl_node_type_from_str (const char *);
 const char *agl_node_type_str (agl_node_type);
 const char *agl_node_direction_str (agl_direction);