Imported Debian patch 1.1.1+rev1207-1debian/1.1.1+rev1207-1

1 files changed, 94 insertions, 0 deletions

diff --git a/lib/libucsi/dvb/ca_identifier_descriptor.h b/lib/libucsi/dvb/ca_identifier_descriptor.h
new file mode 100644
index 0000000..ac670a9
--- /dev/null
+++ b/lib/libucsi/dvb/ca_identifier_descriptor.h
@@ -0,0 +1,94 @@
+/*
+ * 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_CA_IDENTIFIER_DESCRIPTOR
+#define _UCSI_DVB_CA_IDENTIFIER_DESCRIPTOR 1
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#include <libucsi/descriptor.h>
+#include <libucsi/endianops.h>
+
+/**
+ * dvb_ca_identifier_descriptor structure.
+ */
+struct dvb_ca_identifier_descriptor {
+	struct descriptor d;
+
+	/* uint16_t ca_system_ids[] */
+} __ucsi_packed;
+
+/**
+ * Process a dvb_ca_identifier_descriptor.
+ *
+ * @param d Generic descriptor pointer.
+ * @return dvb_ca_identifier_descriptor pointer, or NULL on error.
+ */
+static inline struct dvb_ca_identifier_descriptor*
+	dvb_ca_identifier_descriptor_codec(struct descriptor* d)
+{
+	uint32_t len = d->len;
+	uint8_t *buf = (uint8_t*) d + 2;
+	uint32_t pos = 0;
+
+	if (len % 2)
+		return NULL;
+
+	while(pos < len) {
+		bswap16(buf+pos);
+		pos+=2;
+	}
+
+	return (struct dvb_ca_identifier_descriptor*) d;
+}
+
+/**
+ * Accessor for the ca_system_ids field of a dvb_ca_identifier_descriptor.
+ *
+ * @param d Generic descriptor pointer.
+ * @return Pointer to the field.
+ */
+static inline uint16_t *
+	dvb_ca_identifier_descriptor_ca_system_ids(struct dvb_ca_identifier_descriptor *d)
+{
+	return (uint16_t *) ((uint8_t *) d + sizeof(struct dvb_ca_identifier_descriptor));
+}
+
+/**
+ * Calculate the number of entries in the ca_system_ids field of a dvb_ca_identifier_descriptor.
+ *
+ * @param d dvb_ca_identifier_descriptor pointer.
+ * @return Number of entries.
+ */
+static inline int
+	dvb_ca_identifier_descriptor_ca_system_ids_count(struct dvb_ca_identifier_descriptor *d)
+{
+	return d->d.len >> 1;
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif