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-rw-r--r--src/fig/FIG0_13.cpp119
-rw-r--r--src/fig/FIG0_13.h2
-rw-r--r--src/fig/FIG0structs.h4
3 files changed, 74 insertions, 51 deletions
diff --git a/src/fig/FIG0_13.cpp b/src/fig/FIG0_13.cpp
index 314c6e1..582e28e 100644
--- a/src/fig/FIG0_13.cpp
+++ b/src/fig/FIG0_13.cpp
@@ -3,7 +3,7 @@
2011, 2012 Her Majesty the Queen in Right of Canada (Communications
Research Center Canada)
- Copyright (C) 2016
+ Copyright (C) 2020
Matthias P. Braendli, matthias.braendli@mpb.li
*/
/*
@@ -92,9 +92,14 @@ FillStatus FIG0_13::fill(uint8_t *buf, size_t max_size)
const auto type = (*subchannel)->type;
if ( m_transmit_programme and
(type == subchannel_type_t::DABPlusAudio or type == subchannel_type_t::DABAudio) and
- (*componentFIG0_13)->audio.uaType != 0xffff) {
+ (*componentFIG0_13)->audio.uaTypes.size() != 0) {
- const int required_size = 3+4+11;
+ const size_t num_apps = (*componentFIG0_13)->audio.uaTypes.size();
+
+ const size_t app_length = 2;
+ static_assert(sizeof(FIG0_13_shortAppInfo) == 3);
+ static_assert(sizeof(FIG0_13_app) == 4);
+ const int required_size = sizeof(FIG0_13_shortAppInfo) + num_apps * (sizeof(FIG0_13_app) + app_length);
if (fig0 == NULL) {
if (remaining < 2 + required_size) {
@@ -117,34 +122,42 @@ FillStatus FIG0_13::fill(uint8_t *buf, size_t max_size)
FIG0_13_shortAppInfo* info = (FIG0_13_shortAppInfo*)buf;
info->SId = htonl((*componentFIG0_13)->serviceId) >> 16;
info->SCIdS = (*componentFIG0_13)->SCIdS;
- info->No = 1;
- buf += 3;
- remaining -= 3;
- fig0->Length += 3;
-
- FIG0_13_app* app = (FIG0_13_app*)buf;
- app->setType((*componentFIG0_13)->audio.uaType);
- app->length = 2;
- app->xpad = htons(0x0c3c);
- /* xpad meaning
- CA = 0
- CAOrg = 0
- Rfu = 0
- AppTy(5) = 12 (MOT, start of X-PAD data group)
- DG = 0 (MSC data groups used)
- Rfu = 0
- DSCTy(6) = 60 (MOT)
- */
-
- buf += 2 + app->length;
- remaining -= 2 + app->length;
- fig0->Length += 2 + app->length;
+ info->No = num_apps;
+ buf += sizeof(FIG0_13_shortAppInfo);
+ remaining -= sizeof(FIG0_13_shortAppInfo);
+ fig0->Length += sizeof(FIG0_13_shortAppInfo);
+
+ for (const auto& ua : (*componentFIG0_13)->audio.uaTypes) {
+ FIG0_13_app* app = (FIG0_13_app*)buf;
+ app->setType(ua.uaType);
+ app->length = app_length;
+
+ const uint8_t dscty = 60; // TS 101 756 Table 2b (MOT)
+ app->xpad = htons((ua.xpadAppType << 8) | dscty);
+ /* xpad meaning
+ CA = 0
+ CAOrg = 0 (CAOrg field absent)
+ Rfu = 0
+ AppTy(5) = depending on config
+ DG = 0 (MSC data groups used)
+ Rfu = 0
+ DSCTy(6) = 60 (MOT)
+ */
+
+ buf += sizeof(FIG0_13_app);
+ remaining -= sizeof(FIG0_13_app);
+ fig0->Length += sizeof(FIG0_13_app);
+ }
}
- else if (!m_transmit_programme &&
- (*subchannel)->type == subchannel_type_t::Packet &&
- (*componentFIG0_13)->packet.appType != 0xffff) {
+ else if (not m_transmit_programme and
+ (*subchannel)->type == subchannel_type_t::Packet and
+ (*componentFIG0_13)->packet.uaTypes.size() != 0) {
- const int required_size = 5+2+2;
+ const size_t num_apps = (*componentFIG0_13)->audio.uaTypes.size();
+
+ const size_t app_length = 2;
+ const int required_size = sizeof(FIG0_13_longAppInfo) + num_apps * (sizeof(FIG0_13_app) + app_length);
+ /* is conservative because app_length can be 0 */
if (fig0 == NULL) {
if (remaining < 2 + required_size) {
@@ -167,26 +180,36 @@ FillStatus FIG0_13::fill(uint8_t *buf, size_t max_size)
FIG0_13_longAppInfo* info = (FIG0_13_longAppInfo*)buf;
info->SId = htonl((*componentFIG0_13)->serviceId);
info->SCIdS = (*componentFIG0_13)->SCIdS;
- info->No = 1;
- buf += 5;
- remaining -= 5;
- fig0->Length += 5;
-
- FIG0_13_app* app = (FIG0_13_app*)buf;
- app->setType((*componentFIG0_13)->packet.appType);
- if (app->typeLow == FIG0_13_APPTYPE_EPG) {
- app->length = 2;
- app->xpad = htons(0x0100);
- /* xpad used to hold two bytes of EPG profile information
- 01 = basic profile
- 00 = list terminator */
- }
- else {
- app->length = 0;
+ info->No = num_apps;
+ buf += sizeof(FIG0_13_longAppInfo);
+ remaining -= sizeof(FIG0_13_longAppInfo);
+ fig0->Length += sizeof(FIG0_13_longAppInfo);
+
+ for (const auto& ua : (*componentFIG0_13)->audio.uaTypes) {
+ FIG0_13_app* app = (FIG0_13_app*)buf;
+ app->setType(ua.uaType);
+
+ size_t effective_length = sizeof(FIG0_13_app);
+
+ if (ua.uaType == FIG0_13_APPTYPE_SPI) {
+ // TODO This should probably be user configurable...
+ app->length = app_length;
+ app->xpad = htons(0x0100);
+ /* xpad is actually not the "X-PAD data" as in Figure 25, but is the actual user application data.
+ * We just recycle the same structure, even though it's a bit ugly.
+ * It holds two bytes of EPG profile information:
+ * 01 = basic profile
+ * 00 = list terminator */
+ }
+ else {
+ app->length = 0;
+ effective_length = 1; // FIG0_13_app without xpad
+ }
+
+ buf += effective_length;
+ remaining -= effective_length;
+ fig0->Length += effective_length;
}
- buf += 2 + app->length;
- remaining -= 2 + app->length;
- fig0->Length += 2 + app->length;
}
}
diff --git a/src/fig/FIG0_13.h b/src/fig/FIG0_13.h
index bac5b25..18159f0 100644
--- a/src/fig/FIG0_13.h
+++ b/src/fig/FIG0_13.h
@@ -3,7 +3,7 @@
2011, 2012 Her Majesty the Queen in Right of Canada (Communications
Research Center Canada)
- Copyright (C) 2016
+ Copyright (C) 2020
Matthias P. Braendli, matthias.braendli@mpb.li
*/
/*
diff --git a/src/fig/FIG0structs.h b/src/fig/FIG0structs.h
index d022dc4..a82e59e 100644
--- a/src/fig/FIG0structs.h
+++ b/src/fig/FIG0structs.h
@@ -3,7 +3,7 @@
2011, 2012 Her Majesty the Queen in Right of Canada (Communications
Research Center Canada)
- Copyright (C) 2017
+ Copyright (C) 2020
Matthias P. Braendli, matthias.braendli@mpb.li
*/
/*
@@ -36,7 +36,7 @@
#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_SPI 0x7
#define FIG0_13_APPTYPE_DABJAVA 0x8
#define FIG0_13_APPTYPE_JOURNALINE 0x441
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-28 01:09:23 +0000