Imported Upstream version 1.1.1+rev1207upstream/1.1.1+rev1207

1 files changed, 87 insertions, 0 deletions

diff --git a/lib/libucsi/mpeg/iod_descriptor.h b/lib/libucsi/mpeg/iod_descriptor.h
new file mode 100644
index 0000000..61de153
--- /dev/null
+++ b/lib/libucsi/mpeg/iod_descriptor.h
@@ -0,0 +1,87 @@
+/*
+ * 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_MPEG_IOD_DESCRIPTOR
+#define _UCSI_MPEG_IOD_DESCRIPTOR 1
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#include <libucsi/descriptor.h>
+#include <libucsi/endianops.h>
+
+/**
+ * mpeg_iod_descriptor structure.
+ */
+struct mpeg_iod_descriptor {
+	struct descriptor d;
+
+	uint8_t scope_of_iod_label;
+	uint8_t iod_label;
+	/* uint8_t iod[] */
+} __ucsi_packed;
+
+/**
+ * Process an mpeg_iod_descriptor.
+ *
+ * @param d Generic descriptor structure.
+ * @return Pointer to an mpeg_iod_descriptor structure, or NULL on error.
+ */
+static inline struct mpeg_iod_descriptor*
+	mpeg_iod_descriptor_codec(struct descriptor* d)
+{
+	if (d->len < (sizeof(struct mpeg_iod_descriptor) - 2))
+		return NULL;
+
+	return (struct mpeg_iod_descriptor*) d;
+}
+
+/**
+ * Retrieve pointer to iod field of an mpeg_iod_descriptor structure.
+ *
+ * @param d Pointer to mpeg_iod_descriptor structure.
+ * @return Pointer to the iod field.
+ */
+static inline uint8_t *
+	mpeg_iod_descriptor_iod(struct mpeg_iod_descriptor *d)
+{
+	return (uint8_t *) d + sizeof(struct mpeg_iod_descriptor);
+}
+
+/**
+ * Calculate the length of the iod field of an mpeg_iod_descriptor structure.
+ *
+ * @param d Pointer to mpeg_iod_descriptor structure.
+ * @return The number of bytes.
+ */
+static inline int
+	mpeg_iod_descriptor_iod_length(struct mpeg_iod_descriptor *d)
+{
+	return d->d.len - 2;
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif