1 files changed, 98 insertions, 0 deletions
diff --git a/lib/libucsi/dvb/service_availability_descriptor.h b/lib/libucsi/dvb/service_availability_descriptor.h
new file mode 100644
index 0000000..64def75
--- /dev/null
+++ b/lib/libucsi/dvb/service_availability_descriptor.h
@@ -0,0 +1,98 @@
+/*
+ * section and descriptor parser
+ *
+ * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org)
+ * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net)
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ */
+
+#ifndef _UCSI_DVB_SERVICE_AVAILABILITY_DESCRIPTOR
+#define _UCSI_DVB_SERVICE_AVAILABILITY_DESCRIPTOR 1
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#include <libucsi/descriptor.h>
+#include <libucsi/endianops.h>
+
+/**
+ * dvb_service_availability_descriptor structure.
+ */
+struct dvb_service_availability_descriptor {
+	struct descriptor d;
+
+  EBIT2(uint8_t availability_flag	: 1; ,
+	uint8_t reserved		: 7; );
+	/* uint16_t cell_ids[] */
+} __ucsi_packed;
+
+/**
+ * Process a dvb_service_availability_descriptor.
+ *
+ * @param d Pointer to a generic descriptor structure.
+ * @return dvb_service_availability_descriptor pointer, or NULL on error.
+ */
+static inline struct dvb_service_availability_descriptor*
+	dvb_service_availability_descriptor_codec(struct descriptor* d)
+{
+	uint32_t pos = 0;
+	uint8_t* buf = (uint8_t*) d + 2;
+	uint32_t len = d->len;
+
+	pos += sizeof(struct dvb_service_availability_descriptor) - 2;
+
+	if ((len - pos) % 2)
+		return NULL;
+
+	while(pos < len) {
+		bswap16(buf+pos);
+		pos += 2;
+	}
+
+	return (struct dvb_service_availability_descriptor*) d;
+}
+
+/**
+ * Accessor for the cell_ids field of a dvb_service_availability_descriptor.
+ *
+ * @param d dvb_service_availability_descriptor pointer.
+ * @return Pointer to the field.
+ */
+static inline uint16_t *
+	dvb_service_availability_descriptor_cell_ids(struct dvb_service_availability_descriptor *d)
+{
+	return (uint16_t *) ((uint8_t *) d + sizeof(struct dvb_service_availability_descriptor));
+}
+
+/**
+ * Determine the number of entries in the cell_ids field of a dvb_service_availability_descriptor.
+ *
+ * @param d dvb_service_availability_descriptor pointer.
+ * @return The number of entries.
+ */
+static inline int
+	dvb_service_availability_descriptor_cell_ids_count(struct dvb_service_availability_descriptor *d)
+{
+	return (d->d.len - 1) >> 1;
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif