add some more useful defines

Add define to match all ids for nodes and params.
Add define for invalid permissions

src/examples/audio-src.c

@@ -150,7 +150,7 @@ int main(int argc, char *argv[])
 	 * called in a realtime thread. */
 	pw_stream_connect(data.stream,
 			  PW_DIRECTION_OUTPUT,
-			  argc > 1 ? (uint32_t)atoi(argv[1]) : SPA_ID_INVALID,
+			  argc > 1 ? (uint32_t)atoi(argv[1]) : PW_ID_ANY,
 			  PW_STREAM_FLAG_AUTOCONNECT |
 			  PW_STREAM_FLAG_MAP_BUFFERS |
 			  PW_STREAM_FLAG_RT_PROCESS,

src/examples/export-sink.c

@@ -486,11 +486,9 @@ static void set_permissions(struct data *data)
 
 	/* an example, set specific permissions on one object, this is the
 	 * core object. */
-	permissions[0].id = 0;
-	permissions[0].permissions = PW_PERM_R | PW_PERM_X;
+	permissions[0] = PW_PERMISSION_INIT(PW_ID_CORE, PW_PERM_R | PW_PERM_X);
 	/* remove WX from all other objects */
-	permissions[1].id = SPA_ID_INVALID;
-	permissions[1].permissions = PW_PERM_R;
+	permissions[1] = PW_PERMISSION_INIT(PW_ID_ANY, PW_PERM_R);
 
 	pw_client_update_permissions(
 			pw_core_get_client(data->core),

src/examples/video-play.c

@@ -442,7 +442,7 @@ int main(int argc, char *argv[])
 	 */
 	if ((res = pw_stream_connect(data.stream,
 			  PW_DIRECTION_INPUT,
-			  data.path ? (uint32_t)atoi(data.path) : SPA_ID_INVALID,
+			  data.path ? (uint32_t)atoi(data.path) : PW_ID_ANY,
 			  PW_STREAM_FLAG_AUTOCONNECT |	/* try to automatically connect this stream */
 			  PW_STREAM_FLAG_INACTIVE |	/* we will activate ourselves */
 			  PW_STREAM_FLAG_EXCLUSIVE |	/* require exclusive access */

src/examples/video-src-alloc.c

@@ -401,7 +401,7 @@ int main(int argc, char *argv[])
 	 * the server.  */
 	pw_stream_connect(data.stream,
 			  PW_DIRECTION_OUTPUT,
-			  SPA_ID_INVALID,
+			  PW_ID_ANY,
 			  PW_STREAM_FLAG_DRIVER |
 			  PW_STREAM_FLAG_ALLOC_BUFFERS,
 			  params, 1);

src/examples/video-src.c

@@ -311,7 +311,7 @@ int main(int argc, char *argv[])
 
 	pw_stream_connect(data.stream,
 			  PW_DIRECTION_OUTPUT,
-			  SPA_ID_INVALID,
+			  PW_ID_ANY,
 			  PW_STREAM_FLAG_DRIVER |
 			  PW_STREAM_FLAG_MAP_BUFFERS,
 			  params, 1);