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-rw-r--r--lib/libucsi/dvb/terrestrial_delivery_descriptor.h77
1 files changed, 77 insertions, 0 deletions
diff --git a/lib/libucsi/dvb/terrestrial_delivery_descriptor.h b/lib/libucsi/dvb/terrestrial_delivery_descriptor.h
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+/*
+ * 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_TERRESTRIAL_DELIVERY_DESCRIPTOR
+#define _UCSI_DVB_TERRESTRIAL_DELIVERY_DESCRIPTOR 1
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#include <libucsi/descriptor.h>
+#include <libucsi/endianops.h>
+
+/**
+ * dvb_terrestrial_delivery_descriptor structure.
+ */
+struct dvb_terrestrial_delivery_descriptor {
+ struct descriptor d;
+
+ uint32_t centre_frequency; // Normal integer, units 10Hz
+ EBIT5(uint8_t bandwidth : 3; ,
+ uint8_t priority : 1; ,
+ uint8_t time_slicing_indicator : 1; ,
+ uint8_t mpe_fec_indicator : 1; ,
+ uint8_t reserved_1 : 2; );
+ EBIT3(uint8_t constellation : 2; ,
+ uint8_t hierarchy_information : 3; ,
+ uint8_t code_rate_hp_stream : 3; );
+ EBIT4(uint8_t code_rate_lp_stream : 3; ,
+ uint8_t guard_interval : 2; ,
+ uint8_t transmission_mode : 2; ,
+ uint8_t other_frequency_flag : 1; );
+ uint32_t reserved_2;
+} __ucsi_packed;
+
+/**
+ * Process a dvb_terrestrial_delivery_descriptor.
+ *
+ * @param d Generic descriptor structure.
+ * @return dvb_terrestrial_delivery_descriptor pointer, or NULL on error.
+ */
+static inline struct dvb_terrestrial_delivery_descriptor*
+ dvb_terrestrial_delivery_descriptor_codec(struct descriptor* d)
+{
+ if (d->len != (sizeof(struct dvb_terrestrial_delivery_descriptor) - 2))
+ return NULL;
+
+ bswap32((uint8_t*) d + 2);
+ bswap32((uint8_t*) d + 9);
+
+ return (struct dvb_terrestrial_delivery_descriptor*) d;
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif