Implement the service location descriptor (0xa1), and small cleanups.
Signed-off-by: André Roth <neolynx@xxxxxxxxx>
---
lib/include/descriptors.h | 4 +-
lib/include/descriptors/desc_service_location.h | 69 +++++++++++++++++++++++
lib/libdvbv5/Makefile.am | 3 +-
lib/libdvbv5/descriptors.c | 2 +-
lib/libdvbv5/descriptors/desc_service_location.c | 70 ++++++++++++++++++++++++
5 files changed, 145 insertions(+), 3 deletions(-)
create mode 100644 lib/include/descriptors/desc_service_location.h
create mode 100644 lib/libdvbv5/descriptors/desc_service_location.c
diff --git a/lib/include/descriptors.h b/lib/include/descriptors.h
index 2e614f0..5ab29a0 100644
--- a/lib/include/descriptors.h
+++ b/lib/include/descriptors.h
@@ -1,4 +1,4 @@
- /*
+/*
* Copyright (c) 2011-2012 - Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
*
* This program is free software; you can redistribute it and/or
@@ -216,6 +216,8 @@ enum descriptors {
/* SCTE 35 2004 */
CUE_identifier_descriptor = 0x8a,
+ extended_channel_name = 0xa0,
+ service_location = 0xa1,
/* From http://www.etherguidesystems.com/Help/SDOs/ATSC/Semantics/Descriptors/Default.aspx */
component_name_descriptor = 0xa3,
diff --git a/lib/include/descriptors/desc_service_location.h b/lib/include/descriptors/desc_service_location.h
new file mode 100644
index 0000000..89ed055
--- /dev/null
+++ b/lib/include/descriptors/desc_service_location.h
@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2013 - Andre Roth <neolynx@xxxxxxxxx>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation version 2
+ * of the License.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ * Or, point your browser to http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
+ *
+ */
+
+#ifndef _SERVICE_LOCATION_H
+#define _SERVICE_LOCATION_H
+
+#include <stdint.h>
+#include <unistd.h> /* ssize_t */
+
+struct dvb_desc_service_location_element {
+ uint8_t stream_type;
+ union {
+ uint16_t bitfield;
+ struct {
+ uint16_t elementary_pid:13;
+ uint16_t reserved:3;
+ };
+ };
+ uint8_t language[4];
+} __attribute__((packed));
+
+struct dvb_desc_service_location {
+ uint8_t type;
+ uint8_t length;
+ struct dvb_desc *next;
+
+ union {
+ uint16_t bitfield;
+ struct {
+ uint16_t pcr_pid:13;
+ uint16_t reserved:3;
+ };
+ };
+ uint8_t elements;
+ struct dvb_desc_service_location_element *element;
+} __attribute__((packed));
+
+struct dvb_v5_fe_parms;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void dvb_desc_service_location_init (struct dvb_v5_fe_parms *parms, const uint8_t *buf, struct dvb_desc *desc);
+void dvb_desc_service_location_print(struct dvb_v5_fe_parms *parms, const struct dvb_desc *desc);
+void dvb_desc_service_location_free (struct dvb_desc *desc);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/lib/libdvbv5/Makefile.am b/lib/libdvbv5/Makefile.am
index 2ad5902..80e8adb 100644
--- a/lib/libdvbv5/Makefile.am
+++ b/lib/libdvbv5/Makefile.am
@@ -48,7 +48,8 @@ libdvbv5_la_SOURCES = \
descriptors/nit.c ../include/descriptors/nit.h \
descriptors/sdt.c ../include/descriptors/sdt.h \
descriptors/vct.c ../include/descriptors/vct.h \
- descriptors/eit.c ../include/descriptors/eit.h
+ descriptors/eit.c ../include/descriptors/eit.h \
+ descriptors/desc_service_location.c ../include/descriptors/desc_service_location.h
libdvbv5_la_CPPFLAGS = $(ENFORCE_LIBDVBV5_STATIC)
libdvbv5_la_LDFLAGS = $(LIBDVBV5_VERSION) $(ENFORCE_LIBDVBV5_STATIC) -lm
diff --git a/lib/libdvbv5/descriptors.c b/lib/libdvbv5/descriptors.c
index 5ce9241..437b2f4 100644
--- a/lib/libdvbv5/descriptors.c
+++ b/lib/libdvbv5/descriptors.c
@@ -69,7 +69,7 @@ void dvb_desc_default_init(struct dvb_v5_fe_parms *parms, const uint8_t *buf, st
void dvb_desc_default_print(struct dvb_v5_fe_parms *parms, const struct dvb_desc *desc)
{
- dvb_log("| %s (0x%02x)", dvb_descriptors[desc->type].name, desc->type);
+ dvb_log("| %s (%#02x)", dvb_descriptors[desc->type].name, desc->type);
hexdump(parms, "| ", desc->data, desc->length);
}
diff --git a/lib/libdvbv5/descriptors/desc_service_location.c b/lib/libdvbv5/descriptors/desc_service_location.c
new file mode 100644
index 0000000..3759665
--- /dev/null
+++ b/lib/libdvbv5/descriptors/desc_service_location.c
@@ -0,0 +1,70 @@
+/*
+ * Copyright (c) 2013 - Andre Roth <neolynx@xxxxxxxxx>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation version 2
+ * of the License.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ * Or, point your browser to http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
+ *
+ */
+
+#include "descriptors/desc_service_location.h"
+#include "descriptors.h"
+#include "dvb-fe.h"
+
+void dvb_desc_service_location_init(struct dvb_v5_fe_parms *parms, const uint8_t *buf, struct dvb_desc *desc)
+{
+ struct dvb_desc_service_location *service_location = (struct dvb_desc_service_location *) desc;
+ /* copy from .next */
+ memcpy(((uint8_t *) service_location )
+ + sizeof(service_location->type)
+ + sizeof(service_location->length)
+ + sizeof(service_location->next),
+ buf,
+ sizeof(service_location->bitfield) + sizeof(service_location->elements));
+ buf += sizeof(service_location->bitfield) + sizeof(service_location->elements);
+
+ bswap16(service_location->bitfield);
+
+ // FIXME: handle elements == 0
+ service_location->element = malloc(service_location->elements * sizeof(struct dvb_desc_service_location_element));
+ int i;
+ struct dvb_desc_service_location_element *element = service_location->element;
+ for(i = 0; i < service_location->elements; i++) {
+ memcpy(element, buf, sizeof(struct dvb_desc_service_location_element) - 1); /* no \0 in lang */
+ buf += sizeof(struct dvb_desc_service_location_element) - 1;
+ element->language[3] = '\0';
+ bswap16(element->bitfield);
+ element++;
+ }
+}
+
+void dvb_desc_service_location_print(struct dvb_v5_fe_parms *parms, const struct dvb_desc *desc)
+{
+ const struct dvb_desc_service_location *service_location = (const struct dvb_desc_service_location *) desc;
+ dvb_log("| pcr pid %d", service_location->pcr_pid);
+ dvb_log("| streams:");
+ int i;
+ struct dvb_desc_service_location_element *element = service_location->element;
+ for(i = 0; i < service_location->elements; i++) {
+ dvb_log("| pid %d, type %d: %s", element[i].elementary_pid, element[i].stream_type, element[i].language);
+ }
+ dvb_log("| %d elements", service_location->elements);
+}
+
+void dvb_desc_service_location_free(struct dvb_desc *desc)
+{
+ const struct dvb_desc_service_location *service_location = (const struct dvb_desc_service_location *) desc;
+ free(service_location->element);
+}
+
--
1.8.3.2
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