Added support for HbbTV to libsi

7 files changed, 86 insertions, 8 deletions

diff --git a/CONTRIBUTORS b/CONTRIBUTORS
index bea4f5af..482a74db 100644
--- a/CONTRIBUTORS
+++ b/CONTRIBUTORS
@@ -2260,6 +2260,7 @@ Christoph Haubrich <christoph1.haubrich@arcor.de>
  for suggesting to implement a function to determine the length of a recording's
  index file
  for fixing setting the start time of an edited recording
+ for adding support for HbbTV to libsi
 
 Pekka Mauno <pekka.mauno@iki.fi>
  for fixing cSchedule::GetFollowingEvent() in case there is currently no present
diff --git a/HISTORY b/HISTORY
index 241a04ee..7b8b197c 100644
--- a/HISTORY
+++ b/HISTORY
@@ -6795,3 +6795,4 @@ Video Disk Recorder Revision History
 - Added HasSnr to the DEBUG_SIGNALQUALITY output in cDvbTuner::GetSignalQuality()
   (triggered by Ville Skyttä pointing out that the variable HasSnr was unused).
 - Updated the Finnish OSD texts (thanks to Rolf Ahrenberg).
+- Added support for HbbTV to libsi (thanks to Christoph Haubrich).
diff --git a/libsi/descriptor.c b/libsi/descriptor.c
index 06a58c0a..5efa421c 100644
--- a/libsi/descriptor.c
+++ b/libsi/descriptor.c
@@ -6,7 +6,7 @@
  *   the Free Software Foundation; either version 2 of the License, or     *
  *   (at your option) any later version.                                   *
  *                                                                         *
- *   $Id: descriptor.c 2.2 2011/06/15 21:26:00 kls Exp $
+ *   $Id: descriptor.c 2.3 2011/12/10 15:47:15 kls Exp $
  *                                                                         *
  ***************************************************************************/
 
@@ -1005,8 +1005,14 @@ int MHP_TransportProtocolDescriptor::getComponentTag() const {
    return componentTag;
 }
 
+char *MHP_TransportProtocolDescriptor::getUrlBase(char *buffer, int size) {
+   return UrlBase.getText(buffer, size);
+}
+
 void MHP_TransportProtocolDescriptor::Parse() {
    int offset=0;
+   remote=false;
+   componentTag=-1;
    data.setPointerAndOffset<const descr_transport_protocol>(s, offset);
    if (getProtocolId() == ObjectCarousel) {
       const transport_via_oc *oc;
@@ -1021,12 +1027,24 @@ void MHP_TransportProtocolDescriptor::Parse() {
          data.setPointerAndOffset<const transport_via_oc_end>(rem, offset);
          componentTag=rem->component_tag;
       }
-   } else { //unimplemented
-      remote=false;
-      componentTag=-1;
+   } else if (getProtocolId() == HTTPoverInteractionChannel) {
+      const transport_via_http *http;
+      data.setPointerAndOffset<const transport_via_http>(http, offset);
+      UrlBase.setDataAndOffset(data+offset, http->url_base_length, offset);
+
+      // fill URL Extension,
+      UrlExtensionLoop.setData(data+offset, getLength()-offset);
+   } else {
+      //unimplemented
    }
 }
 
+void MHP_TransportProtocolDescriptor::UrlExtensionEntry::Parse() {
+   const descr_url_extension_entry *s;
+   s=data.getData<const descr_url_extension_entry>();
+   UrlExtension.setData(data, s->url_extension_length);
+}
+
 void MHP_DVBJApplicationDescriptor::Parse() {
    applicationLoop.setData(data+sizeof(descr_dvbj_application), getLength()-sizeof(descr_dvbj_application));
 }
@@ -1059,6 +1077,17 @@ void MHP_ApplicationIconsDescriptor::Parse() {
    data.setPointerAndOffset<const descr_application_icons_descriptor_end>(s, offset);
 }
 
+char *MHP_SimpleApplicationLocationDescriptor::getLocation(char *buffer, int size) {
+   return location.getText(buffer, size);
+}
+
+void MHP_SimpleApplicationLocationDescriptor::Parse() {
+   int offset=0;
+   const descr_simple_application_location_descriptor *loc;
+   data.setPointerAndOffset<const descr_simple_application_location_descriptor>(loc, offset);
+   location.setDataAndOffset(data+offset, loc->descriptor_length, offset);
+}
+
 int RegistrationDescriptor::getFormatIdentifier() const {
    return HILOHILO(s->format_identifier);
 }
diff --git a/libsi/descriptor.h b/libsi/descriptor.h
index f105f7a0..bce6c9e9 100644
--- a/libsi/descriptor.h
+++ b/libsi/descriptor.h
@@ -6,7 +6,7 @@
  *   the Free Software Foundation; either version 2 of the License, or     *
  *   (at your option) any later version.                                   *
  *                                                                         *
- *   $Id: descriptor.h 2.2 2011/06/15 21:26:00 kls Exp $
+ *   $Id: descriptor.h 2.3 2011/12/10 15:47:15 kls Exp $
  *                                                                         *
  ***************************************************************************/
 
@@ -639,17 +639,29 @@ protected:
 
 class MHP_TransportProtocolDescriptor : public Descriptor {
 public:
+   class UrlExtensionEntry : public LoopElement {
+   public:
+      virtual int getLength() { return sizeof(descr_url_extension_entry)+UrlExtension.getLength(); }
+      String UrlExtension;
+   protected:
+      virtual void Parse();
+   };
+
    enum Protocol { ObjectCarousel = 0x01, IPviaDVB = 0x02, HTTPoverInteractionChannel = 0x03 };
    int getProtocolId() const;
    int getProtocolLabel() const;
    bool isRemote() const;
    int getComponentTag() const;
+   char *getUrlBase(char *buffer, int size);
+   StructureLoop<UrlExtensionEntry> UrlExtensionLoop;
+
 protected:
    virtual void Parse();
 private:
    const descr_transport_protocol *s;
    bool remote;
    int componentTag;
+   String UrlBase;
 };
 
 class MHP_DVBJApplicationDescriptor : public Descriptor {
@@ -685,6 +697,15 @@ private:
    const descr_application_icons_descriptor_end *s;
 };
 
+class MHP_SimpleApplicationLocationDescriptor : public Descriptor {
+public:
+   char *getLocation(char *buffer, int size);
+protected:
+   virtual void Parse();
+private:
+   String location;
+};
+
 class RegistrationDescriptor : public Descriptor {
 public:
    int getFormatIdentifier() const;
diff --git a/libsi/headers.h b/libsi/headers.h
index 6867d2c9..d94f053c 100644
--- a/libsi/headers.h
+++ b/libsi/headers.h
@@ -10,7 +10,7 @@
  *   the Free Software Foundation; either version 2 of the License, or     *
  *   (at your option) any later version.                                   *
  *                                                                         *
- *   $Id: headers.h 2.2 2011/06/15 21:26:00 kls Exp $
+ *   $Id: headers.h 2.3 2011/12/10 15:47:15 kls Exp $
  *                                                                         *
  ***************************************************************************/
 
@@ -1907,6 +1907,11 @@ struct descr_transport_protocol {
    /* protocol_id-specific selector bytes follow */
 };
 
+struct descr_url_extension_entry {
+   u_char url_extension_length                   :8;
+   /* URL extension string */
+};
+
 #define TRANSPORT_VIA_OC_LEN 1
 
 struct transport_via_oc {
@@ -1940,6 +1945,12 @@ struct transport_via_oc_end {
    u_char component_tag                          :8;
 };
 
+#define TRANSPORT_VIA_HTTP_LEN 1
+
+struct transport_via_http {
+   u_char url_base_length                        :8;
+};
+
 /* 0x03 dvb_j_application_descriptor() */
 
 #define DESCR_DVBJ_APPLICATION_LEN 2
@@ -1991,6 +2002,16 @@ struct descr_application_icons_descriptor_end {
    u_char icon_flags_lo                          :8;
 };
 
+/* 0x15 simple application location descrptor */
+
+#define DESCR_SIMPLE_APPLICATION_LOCATION_LEN 3
+
+struct descr_simple_application_location_descriptor {
+   u_char descriptor_tag                         :8;
+   u_char descriptor_length                      :8;
+   /* inital_path_bytes */
+};
+
 // Private DVB Descriptor  Premiere.de
 // 0xF2  Content Transmission Descriptor
 // http://dvbsnoop.sourceforge.net/examples/example-private-section.html
diff --git a/libsi/si.c b/libsi/si.c
index 82123e17..4db917be 100644
--- a/libsi/si.c
+++ b/libsi/si.c
@@ -6,7 +6,7 @@
  *   the Free Software Foundation; either version 2 of the License, or     *
  *   (at your option) any later version.                                   *
  *                                                                         *
- *   $Id: si.c 2.5 2011/12/04 15:06:18 kls Exp $
+ *   $Id: si.c 2.6 2011/12/10 15:47:15 kls Exp $
  *                                                                         *
  ***************************************************************************/
 
@@ -690,6 +690,9 @@ Descriptor *Descriptor::getDescriptor(CharArray da, DescriptorTagDomain domain,
          case MHP_DVBJApplicationLocationDescriptorTag:
             d=new MHP_DVBJApplicationLocationDescriptor();
             break;
+         case MHP_SimpleApplicationLocationDescriptorTag:
+            d=new MHP_SimpleApplicationLocationDescriptor();
+            break;
       // 0x05 - 0x0A is unimplemented this library
          case MHP_ExternalApplicationAuthorisationDescriptorTag:
          case MHP_IPv4RoutingDescriptorTag:
diff --git a/libsi/si.h b/libsi/si.h
index d6a1dc19..f5f0b634 100644
--- a/libsi/si.h
+++ b/libsi/si.h
@@ -6,7 +6,7 @@
  *   the Free Software Foundation; either version 2 of the License, or     *
  *   (at your option) any later version.                                   *
  *                                                                         *
- *   $Id: si.h 2.3 2010/02/13 10:31:34 kls Exp $
+ *   $Id: si.h 2.4 2011/12/10 15:47:15 kls Exp $
  *                                                                         *
  ***************************************************************************/
 
@@ -153,6 +153,8 @@ enum DescriptorTag {
                MHP_PrefetchDescriptorTag = 0x0C,
                MHP_DelegatedApplicationDescriptorTag = 0x0E,
                MHP_ApplicationStorageDescriptorTag = 0x10,
+               MHP_SimpleApplicationLocationDescriptorTag = 0x15,
+               MHP_SimpleApplicationBoundaryDescriptorTag = 0x17,
   // Premiere private Descriptor Tags
                PremiereContentTransmissionDescriptorTag = 0xF2,