From 121059214ba508e9d51dc64b537eec7f44809d1c Mon Sep 17 00:00:00 2001
From: "Matthias P. Braendli" <matthias.braendli@mpb.li>
Date: Fri, 28 Feb 2014 13:21:55 +0100
Subject: Change FIG0/13 handling for MOT slideshow

---
 src/DabMux.cpp    | 45 +++++++++++++++++++++++++++++++++++++++++++--
 src/DabMux.h      | 11 +++++++++++
 src/MuxElements.h |  5 +++++
 3 files changed, 59 insertions(+), 2 deletions(-)

(limited to 'src')

diff --git a/src/DabMux.cpp b/src/DabMux.cpp
index de5b00f..7b6530d 100644
--- a/src/DabMux.cpp
+++ b/src/DabMux.cpp
@@ -1495,9 +1495,50 @@ int main(int argc, char *argv[])
                     goto EXIT;
                 }
 
-                if ((*subchannel)->type != 3) continue;
+                if ((*subchannel)->type == 0) { // audio
+                    if (fig0 == NULL) {
+                        fig0 = (FIGtype0*)&etiFrame[index];
+                        fig0->FIGtypeNumber = 0;
+                        fig0->Length = 1;
+                        fig0->CN = 0;
+                        fig0->OE = 0;
+                        fig0->PD = 1;
+                        fig0->Extension = 13;
+                        index += 2;
+                        figSize += 2;
+                    }
+
+                    FIG0_13_longAppInfo* info =
+                        (FIG0_13_longAppInfo*)&etiFrame[index];
+                    info->SId = htonl((*component)->serviceId);
+                    info->SCIdS = (*component)->SCIdS;
+                    info->No = 1;
+                    index += 5;
+                    figSize += 5;
+                    fig0->Length += 5;
+
+                    FIG0_13_app* app = (FIG0_13_app*)&etiFrame[index];
+                    app->setType(FIG0_13_APPTYPE_SLIDESHOW);
+                    app->length = 4;
+                    app->xpad = 0x0cbc0000;
+                    /* xpad meaning
+                       CA        = 0
+                       CAOrg     = 0
+                       Rfu       = 0
+                       AppTy(5)  = 12 (MOT, start of X-PAD data group)
+                       DG        = 1 (MSC data groups not used)
+                       Rfu       = 0
+                       DSCTy(6)  = 60 (MOT)
+                       CAOrg(16) = 0
+                    */
+
+                    index += 2 + app->length;
+                    figSize += 2 + app->length;
+                    fig0->Length += 2 + app->length;
+                }
+                else if ((*subchannel)->type == 3 && // packet
+                    (*component)->packet.appType != 0xffff) {
 
-                if ((*component)->packet.appType != 0xffff) {
                     if (fig0 == NULL) {
                         fig0 = (FIGtype0*)&etiFrame[index];
                         fig0->FIGtypeNumber = 0;
diff --git a/src/DabMux.h b/src/DabMux.h
index 7bc9481..3c03add 100644
--- a/src/DabMux.h
+++ b/src/DabMux.h
@@ -311,6 +311,7 @@ struct FIG_01_SubChannel_LongF {
 } PACKED;
 
 
+// See EN 300 401, Clause 8.1.20 for the FIG0_13 description
 struct FIG0_13_shortAppInfo {
     uint16_t SId;
     uint8_t No:4;
@@ -333,8 +334,18 @@ struct FIG0_13_app {
         typeHigh = type >> 3;
         typeLow = type & 0x1f;
     }
+    uint32_t xpad;
 } PACKED;
 
+#define FIG0_13_APPTYPE_SLIDESHOW  0x2
+#define FIG0_13_APPTYPE_WEBSITE    0x3
+#define FIG0_13_APPTYPE_TPEG       0x4
+#define FIG0_13_APPTYPE_DGPS       0x5
+#define FIG0_13_APPTYPE_TMC        0x6
+#define FIG0_13_APPTYPE_EPG        0x7
+#define FIG0_13_APPTYPE_DABJAVA    0x8
+// 0x441 is Frauenhofer IIS Journaline
+
 
 struct FIGtype1_0 {
     uint8_t Length:5;
diff --git a/src/MuxElements.h b/src/MuxElements.h
index c416314..d3227e9 100644
--- a/src/MuxElements.h
+++ b/src/MuxElements.h
@@ -127,6 +127,11 @@ struct dabSubchannel {
     const char* inputName;
     DabInputBase* input;
     unsigned char id;
+    /* The type is:
+     * 0 for mpeg, dabplus
+     * 1 for data, dmb
+     * 3 for packet
+     */
     unsigned char type;
     uint16_t startAddress;
     uint16_t bitrate;
-- 
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