Add partial FIG2 label support

Add support for Ensemble label, programme services and components,
although the implementation for the component label is not properly
tested. (data services still to be done)

Neither short labels nor UCS-2 are not yet implemented.

Also, support for draftETSI TS 103 176 which redefines the meaning of
Rfa is still pending.

1 files changed, 176 insertions, 0 deletions

diff --git a/src/fig/FIG2.h b/src/fig/FIG2.h
new file mode 100644
index 0000000..b742c89
--- /dev/null
+++ b/src/fig/FIG2.h
@@ -0,0 +1,176 @@
+/*
+   Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
+   2011, 2012 Her Majesty the Queen in Right of Canada (Communications
+   Research Center Canada)
+
+   Copyright (C) 2019
+   Matthias P. Braendli, matthias.braendli@mpb.li
+   */
+/*
+   This file is part of ODR-DabMux.
+
+   ODR-DabMux 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, either version 3 of the
+   License, or (at your option) any later version.
+
+   ODR-DabMux 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 ODR-DabMux.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __FIG2_H_
+#define __FIG2_H_
+
+#include <cstdint>
+#include <map>
+
+#include "fig/FIG.h"
+
+namespace FIC {
+
+class FIG2_Segments {
+    public:
+        void clear();
+        void load(const std::string& label);
+
+        size_t segment_count() const;
+        std::vector<uint8_t> advance_segment();
+        size_t current_segment_length() const;
+        size_t current_segment_index() const;
+
+        bool ready() const;
+        bool complete() const;
+        int toggle_flag() const;
+
+    private:
+        using vv = std::vector<std::vector<uint8_t> >;
+        vv segments;
+        vv::iterator current_segment_it;
+
+        std::string label_on_last_load;
+        bool toggle = true;
+};
+
+// FIG type 2/0, Multiplex Configuration Info (MCI),
+// Ensemble information
+class FIG2_0 : public IFIG
+{
+    public:
+        FIG2_0(FIGRuntimeInformation* rti) :
+            m_rti(rti) {}
+        virtual FillStatus fill(uint8_t *buf, size_t max_size);
+        virtual FIG_rate repetition_rate() const { return FIG_rate::B; }
+
+        virtual int figtype() const { return 2; }
+        virtual int figextension() const { return 0; }
+
+    private:
+        FIGRuntimeInformation *m_rti;
+        FIG2_Segments m_segments;
+};
+
+// FIG type 2/1, programme service label
+class FIG2_1 : public IFIG
+{
+    public:
+        FIG2_1(FIGRuntimeInformation* rti) :
+            m_rti(rti), m_initialised(false) {}
+        virtual FillStatus fill(uint8_t *buf, size_t max_size);
+        virtual FIG_rate repetition_rate() const { return FIG_rate::B; }
+
+        virtual int figtype() const { return 2; }
+        virtual int figextension() const { return 1; }
+
+    private:
+        FIGRuntimeInformation *m_rti;
+        bool m_initialised;
+        vec_sp_service::iterator service;
+        std::map<uint32_t, FIG2_Segments> segment_per_service;
+};
+
+// FIG type 2/4, service component label
+class FIG2_4 : public IFIG
+{
+    public:
+        FIG2_4(FIGRuntimeInformation* rti) :
+            m_rti(rti), m_initialised(false) {}
+        virtual FillStatus fill(uint8_t *buf, size_t max_size);
+        virtual FIG_rate repetition_rate() const { return FIG_rate::B; }
+
+        virtual int figtype() const { return 2; }
+        virtual int figextension() const { return 4; }
+
+    private:
+        FIGRuntimeInformation *m_rti;
+        bool m_initialised;
+        vec_sp_component::iterator component;
+        std::map<std::pair<uint32_t, uint8_t>, FIG2_Segments> segment_per_component;
+};
+
+// FIG type 2/5, data service label
+class FIG2_5 : public IFIG
+{
+    public:
+        FIG2_5(FIGRuntimeInformation* rti) :
+            m_rti(rti), m_initialised(false) {}
+        virtual FillStatus fill(uint8_t *buf, size_t max_size);
+        virtual FIG_rate repetition_rate() const { return FIG_rate::B; }
+
+        virtual int figtype() const { return 2; }
+        virtual int figextension() const { return 5; }
+
+    private:
+        FIGRuntimeInformation *m_rti;
+        bool m_initialised;
+        vec_sp_service::iterator service;
+};
+
+#ifdef _WIN32
+#   pragma pack(push)
+#endif
+
+struct FIGtype2 {
+    uint8_t Length:5;
+    uint8_t FIGtypeNumber:3;
+
+    uint8_t Extension:3;
+    uint8_t Rfu:1;
+    uint8_t SegmentIndex:3;
+    uint8_t ToggleFlag:1;
+} PACKED;
+
+struct FIGtype2_4_Programme_Identifier {
+    uint8_t SCIdS:4;
+    uint8_t rfa:3;
+    uint8_t PD:1;
+    uint16_t SId;
+} PACKED;
+
+struct FIGtype2_4_Data_Identifier {
+    uint8_t SCIdS:4;
+    uint8_t rfa:3;
+    uint8_t PD:1;
+    uint32_t SId;
+} PACKED;
+
+struct FIG2_Extended_Label {
+    uint8_t Rfa:4;
+    uint8_t SegmentCount:3;
+    uint8_t EncodingFlag:1;
+
+    uint16_t CharacterFlag;
+} PACKED;
+
+#ifdef _WIN32
+#   pragma pack(pop)
+#endif
+
+} // namespace FIC
+
+#endif // __FIG2_H_
+