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-rw-r--r--src/fig/FIG0_13.cpp158
1 files changed, 67 insertions, 91 deletions
diff --git a/src/fig/FIG0_13.cpp b/src/fig/FIG0_13.cpp
index 84e426f..2fa9a54 100644
--- a/src/fig/FIG0_13.cpp
+++ b/src/fig/FIG0_13.cpp
@@ -50,7 +50,6 @@ struct FIG0_13_app {
typeHigh = type >> 3;
typeLow = type & 0x1f;
}
- uint16_t xpad;
} PACKED;
@@ -90,18 +89,39 @@ FillStatus FIG0_13::fill(uint8_t *buf, size_t max_size)
}
const auto type = (*subchannel)->type;
- if ( m_transmit_programme and
+ if ( (m_transmit_programme and
(type == subchannel_type_t::DABPlusAudio or type == subchannel_type_t::DABAudio) and
- (*componentFIG0_13)->audio.uaTypes.size() != 0) {
+ (*componentFIG0_13)->audio.uaTypes.size() != 0)
+ or (not m_transmit_programme and
+ (*subchannel)->type == subchannel_type_t::Packet and
+ (*componentFIG0_13)->packet.uaTypes.size() != 0)) {
+
+ const std::vector<userApplication>& uaTypes = m_transmit_programme ?
+ (*componentFIG0_13)->audio.uaTypes : (*componentFIG0_13)->packet.uaTypes;
- const size_t num_apps = (*componentFIG0_13)->audio.uaTypes.size();
+ const size_t num_apps = uaTypes.size();
const size_t xpadapp_length = 2;
static_assert(sizeof(FIG0_13_shortAppInfo) == 3);
- static_assert(sizeof(FIG0_13_app) == 4);
- int required_size = sizeof(FIG0_13_shortAppInfo);
- for (const auto& ua : (*componentFIG0_13)->audio.uaTypes) {
- required_size += sizeof(FIG0_13_app) + xpadapp_length;
+ static_assert(sizeof(FIG0_13_longAppInfo) == 5);
+ static_assert(sizeof(FIG0_13_app) == 2);
+
+ int required_size = 0;
+ if (m_transmit_programme) {
+ required_size += sizeof(FIG0_13_shortAppInfo);
+ }
+ else {
+ required_size += sizeof(FIG0_13_longAppInfo);
+ }
+
+ for (const auto& ua : uaTypes) {
+ if (m_transmit_programme) {
+ required_size += sizeof(FIG0_13_app) + xpadapp_length;
+ }
+ else {
+ required_size += sizeof(FIG0_13_app);
+ }
+
if (ua.uaType == FIG0_13_APPTYPE_SPI) {
required_size += 2; // For the "basic profile" user application data
}
@@ -116,7 +136,7 @@ FillStatus FIG0_13::fill(uint8_t *buf, size_t max_size)
fig0->Length = 1;
fig0->CN = 0;
fig0->OE = 0;
- fig0->PD = 0;
+ fig0->PD = m_transmit_programme ? 0 : 1;
fig0->Extension = 13;
buf += 2;
remaining -= 2;
@@ -125,15 +145,26 @@ FillStatus FIG0_13::fill(uint8_t *buf, size_t max_size)
break;
}
- FIG0_13_shortAppInfo* info = (FIG0_13_shortAppInfo*)buf;
- info->SId = htonl((*componentFIG0_13)->serviceId) >> 16;
- info->SCIdS = (*componentFIG0_13)->SCIdS;
- info->No = num_apps;
- buf += sizeof(FIG0_13_shortAppInfo);
- remaining -= sizeof(FIG0_13_shortAppInfo);
- fig0->Length += sizeof(FIG0_13_shortAppInfo);
+ if (m_transmit_programme) {
+ FIG0_13_shortAppInfo* info = (FIG0_13_shortAppInfo*)buf;
+ info->SId = htonl((*componentFIG0_13)->serviceId) >> 16;
+ info->SCIdS = (*componentFIG0_13)->SCIdS;
+ info->No = num_apps;
+ buf += sizeof(FIG0_13_shortAppInfo);
+ remaining -= sizeof(FIG0_13_shortAppInfo);
+ fig0->Length += sizeof(FIG0_13_shortAppInfo);
+ }
+ else {
+ FIG0_13_longAppInfo* info = (FIG0_13_longAppInfo*)buf;
+ info->SId = htonl((*componentFIG0_13)->serviceId);
+ info->SCIdS = (*componentFIG0_13)->SCIdS;
+ 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) {
+ for (const auto& ua : uaTypes) {
FIG0_13_app* app = (FIG0_13_app*)buf;
app->setType(ua.uaType);
app->length = xpadapp_length;
@@ -141,91 +172,36 @@ FillStatus FIG0_13::fill(uint8_t *buf, size_t max_size)
app->length += 2;
}
- 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);
- if (ua.uaType == FIG0_13_APPTYPE_SPI) {
- buf[0] = 0x01; // = basic profile
- buf[1] = 0x00; // = list terminator
+ if (m_transmit_programme) {
+ const uint8_t dscty = 60; // TS 101 756 Table 2b (MOT)
+ const uint16_t xpadapp = 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)
+ */
+
+ memcpy(buf, &xpadapp, 2);
buf += 2;
remaining -= 2;
fig0->Length += 2;
}
- }
- }
- else if (not m_transmit_programme and
- (*subchannel)->type == subchannel_type_t::Packet and
- (*componentFIG0_13)->packet.uaTypes.size() != 0) {
-
- 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) {
- break;
- }
- fig0 = (FIGtype0*)buf;
- fig0->FIGtypeNumber = 0;
- fig0->Length = 1;
- fig0->CN = 0;
- fig0->OE = 0;
- fig0->PD = 1;
- fig0->Extension = 13;
- buf += 2;
- remaining -= 2;
- }
- else if (remaining < required_size) {
- break;
- }
-
- FIG0_13_longAppInfo* info = (FIG0_13_longAppInfo*)buf;
- info->SId = htonl((*componentFIG0_13)->serviceId);
- info->SCIdS = (*componentFIG0_13)->SCIdS;
- 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[0] = 0x01; // = basic profile
+ buf[1] = 0x00; // = list terminator
+ buf += 2;
+ remaining -= 2;
+ fig0->Length += 2;
}
-
- buf += effective_length;
- remaining -= effective_length;
- fig0->Length += effective_length;
}
}
}
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