From 4e15f6d658139fca773b76088bf1523839c20ffd Mon Sep 17 00:00:00 2001
From: Klaus Schmidinger <vdr@tvdr.de>
Date: Mon, 6 Jan 2003 14:44:27 +0100
Subject: Implemented 'Link Layer' based CAM support

---
 libdtv/libsi/include/libsi.h | 23 +++++++++++++++++++++++
 libdtv/libsi/si_parser.c     |  7 ++++++-
 2 files changed, 29 insertions(+), 1 deletion(-)

(limited to 'libdtv/libsi')

diff --git a/libdtv/libsi/include/libsi.h b/libdtv/libsi/include/libsi.h
index 366387a3..8e9e2605 100644
--- a/libdtv/libsi/include/libsi.h
+++ b/libdtv/libsi/include/libsi.h
@@ -315,6 +315,29 @@ struct Descriptor {
 };
 
 
+/* ConditionalAccessDescriptor */
+
+struct ConditionalAccessDescriptor {
+   struct NODE          Node;
+   unsigned short       Tag;
+   unsigned short       Amount;        /* Data */
+   unsigned char       *Data;
+};
+
+#define CreateConditionalAccessDescriptor(descr, amount, data) \
+   do \
+   { \
+      unsigned char *tmpptr; \
+      \
+      xMemAlloc (amount, &tmpptr); \
+      memcpy (tmpptr, data, amount); \
+      xCreateNode (((struct ConditionalAccessDescriptor *)descr), NULL); \
+      ((struct ConditionalAccessDescriptor *)descr)->Tag = DESCR_CA; \
+      ((struct ConditionalAccessDescriptor *)descr)->Amount = amount; \
+      ((struct ConditionalAccessDescriptor *)descr)->Data = tmpptr; \
+   } while (0)
+
+
 /* Iso639LanguageDescriptor */
 
 struct Iso639LanguageDescriptor {
diff --git a/libdtv/libsi/si_parser.c b/libdtv/libsi/si_parser.c
index be0d2549..ccca6e5e 100644
--- a/libdtv/libsi/si_parser.c
+++ b/libdtv/libsi/si_parser.c
@@ -705,6 +705,12 @@ void siParseDescriptor (struct LIST *Descriptors, u_char *Buffer)
             HILO (CastTimeShiftedEventDescriptor(Ptr)->reference_event_id));
       break;
 
+      case DESCR_CA:
+         CreateConditionalAccessDescriptor (Descriptor,
+            *(Ptr + 1) + 2, // we'll need the entire raw data!
+            Ptr);
+      break;
+
       case DESCR_ISO_639_LANGUAGE:
          CreateIso639LanguageDescriptor (Descriptor,
                    CastIso639LanguageDescriptor(Buffer)->lang_code1,
@@ -790,7 +796,6 @@ void siParseDescriptor (struct LIST *Descriptors, u_char *Buffer)
       case DESCR_DATA_STREAM_ALIGN:
       case DESCR_TARGET_BACKGRID:
       case DESCR_VIDEO_WINDOW:
-      case DESCR_CA:
       case DESCR_SYSTEM_CLOCK:
       case DESCR_MULTIPLEX_BUFFER_UTIL:
       case DESCR_COPYRIGHT:
-- 
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