From 8222356f6c3dff6f66283c32354be033898749fc Mon Sep 17 00:00:00 2001
From: "Matthias P. Braendli" <matthias.braendli@mpb.li>
Date: Fri, 7 Aug 2015 15:38:43 +0200
Subject: Add FIG1/4

---
 src/fig/FIG1.cpp        | 86 +++++++++++++++++++++++++++++++++++++++++++++++++
 src/fig/FIG1.h          | 18 +++++++++++
 src/fig/FIGCarousel.cpp |  2 ++
 src/fig/FIGCarousel.h   |  1 +
 4 files changed, 107 insertions(+)

(limited to 'src')

diff --git a/src/fig/FIG1.cpp b/src/fig/FIG1.cpp
index fa8e380..2da9130 100644
--- a/src/fig/FIG1.cpp
+++ b/src/fig/FIG1.cpp
@@ -123,6 +123,92 @@ FillStatus FIG1_1::fill(uint8_t *buf, size_t max_size)
     return fs;
 }
 
+//=========== FIG 1/4 ===========
+
+FillStatus FIG1_4::fill(uint8_t *buf, size_t max_size)
+{
+    FillStatus fs;
+
+    ssize_t remaining = max_size;
+
+    if (not m_initialised) {
+        component = m_rti->ensemble->components.end();
+    }
+
+    auto ensemble = m_rti->ensemble;
+
+    // Rotate through the subchannels until there is no more
+    // space
+    if (component == ensemble->components.end()) {
+        component = ensemble->components.begin();
+        fs.complete_fig_transmitted = true;
+    }
+
+    for (; component != ensemble->components.end();
+            ++component) {
+
+        auto service = getService(*component, ensemble->services);
+
+        if (not (*component)->label.long_label().empty() ) {
+            if ((*service)->getType(ensemble) == subchannel_type_t::Audio) {
+
+                if (remaining < 5 + 16 + 2) {
+                    break;
+                }
+
+                // Programme
+                FIGtype1_4_programme *fig1_4;
+                fig1_4 = (FIGtype1_4_programme*)buf;
+
+                fig1_4->FIGtypeNumber = 1;
+                fig1_4->Length = 22;
+                fig1_4->Charset = 0;
+                fig1_4->OE = 0;
+                fig1_4->Extension = 4;
+                fig1_4->PD = 0;
+                fig1_4->rfa = 0;
+                fig1_4->SCIdS = (*component)->SCIdS;
+
+                fig1_4->SId = htons((*service)->id);
+                buf += 5;
+                remaining -= 5;
+            }
+            else {    // Data
+
+                if (remaining < 7 + 16 + 2) {
+                    break;
+                }
+
+                FIGtype1_4_data *fig1_4;
+                fig1_4 = (FIGtype1_4_data *)buf;
+                fig1_4->FIGtypeNumber = 1;
+                fig1_4->Length = 24;
+                fig1_4->Charset = 0;
+                fig1_4->OE = 0;
+                fig1_4->Extension = 4;
+                fig1_4->PD = 1;
+                fig1_4->rfa = 0;
+                fig1_4->SCIdS = (*component)->SCIdS;
+
+                fig1_4->SId = htonl((*service)->id);
+                buf += 7;
+                remaining -= 7;
+            }
+            (*component)->label.writeLabel(buf);
+            buf += 16;
+            remaining -= 16;
+
+            buf[0] = (*component)->label.flag() >> 8;
+            buf[1] = (*component)->label.flag() & 0xFF;
+            buf += 2;
+            remaining -= 2;
+        }
+    }
+
+    fs.num_bytes_written = max_size - remaining;
+    return fs;
+}
+
 //=========== FIG 1/5 ===========
 
 FillStatus FIG1_5::fill(uint8_t *buf, size_t max_size)
diff --git a/src/fig/FIG1.h b/src/fig/FIG1.h
index b322eab..786dae9 100644
--- a/src/fig/FIG1.h
+++ b/src/fig/FIG1.h
@@ -67,6 +67,24 @@ class FIG1_1 : public IFIG
         std::vector<std::shared_ptr<DabService> >::iterator service;
 };
 
+// FIG type 1/4, service component label
+class FIG1_4 : public IFIG
+{
+    public:
+        FIG1_4(FIGRuntimeInformation* rti) :
+            m_rti(rti), m_initialised(false) {}
+        virtual FillStatus fill(uint8_t *buf, size_t max_size);
+        virtual FIG_rate repetition_rate(void) { return FIG_rate::B; }
+
+        virtual const int figtype(void) const { return 1; }
+        virtual const int figextension(void) const { return 4; }
+
+    private:
+        FIGRuntimeInformation *m_rti;
+        bool m_initialised;
+        std::vector<DabComponent*>::iterator component;
+};
+
 // FIG type 1/5, data service label
 class FIG1_5 : public IFIG
 {
diff --git a/src/fig/FIGCarousel.cpp b/src/fig/FIGCarousel.cpp
index 932945a..0b25233 100644
--- a/src/fig/FIGCarousel.cpp
+++ b/src/fig/FIGCarousel.cpp
@@ -66,6 +66,7 @@ FIGCarousel::FIGCarousel(boost::shared_ptr<dabEnsemble> ensemble) :
     m_fig0_10(&m_rti),
     m_fig0_9(&m_rti),
     m_fig1_1(&m_rti),
+    m_fig1_4(&m_rti),
     m_fig1_5(&m_rti)
 {
     load_and_allocate(m_fig0_0, 0);
@@ -82,6 +83,7 @@ FIGCarousel::FIGCarousel(boost::shared_ptr<dabEnsemble> ensemble) :
 
     load_and_allocate(m_fig1_1, 2);
     load_and_allocate(m_fig1_5, 2);
+    load_and_allocate(m_fig1_4, 2);
 }
 
 void FIGCarousel::load_and_allocate(IFIG& fig, int fib)
diff --git a/src/fig/FIGCarousel.h b/src/fig/FIGCarousel.h
index 0e70f40..2fa0335 100644
--- a/src/fig/FIGCarousel.h
+++ b/src/fig/FIGCarousel.h
@@ -83,6 +83,7 @@ class FIGCarousel {
 
         // FIB 2 figs
         FIG1_1 m_fig1_1;
+        FIG1_4 m_fig1_4;
         FIG1_5 m_fig1_5;
 };
 
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