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-rw-r--r--doc/example.mux7
-rw-r--r--src/DabMultiplexer.cpp31
-rw-r--r--src/DabMux.cpp3
-rw-r--r--src/UdpSocket.cpp2
-rw-r--r--src/UdpSocket.h2
-rw-r--r--src/dabOutput/dabOutput.h2
-rw-r--r--src/dabOutput/edi/AFPacket.cpp3
-rw-r--r--src/dabOutput/edi/PFT.cpp2
-rw-r--r--src/dabOutput/edi/PFT.h8
9 files changed, 35 insertions, 25 deletions
diff --git a/doc/example.mux b/doc/example.mux
index abf01bc..1e6495b 100644
--- a/doc/example.mux
+++ b/doc/example.mux
@@ -296,6 +296,13 @@ outputs {
; Enable the PFT subsystem. If false, AFPackets are sent.
enable_pft false
+ ; How many lost fragments can be recovered by Reed-Solomon
+ fec 3
+
+ ; Length of a RS chunk, can be overriden
+ ;default=207
+ ;chunk_len 207
+
; Save the packets sent over ethernet to the file ./edi.debug
dump false
diff --git a/src/DabMultiplexer.cpp b/src/DabMultiplexer.cpp
index 4ca93aa..a894621 100644
--- a/src/DabMultiplexer.cpp
+++ b/src/DabMultiplexer.cpp
@@ -157,7 +157,7 @@ void DabMultiplexer::set_edi_config(const edi_configuration_t& new_edi_conf)
edi_afPacketiser = afPacketiser;
// The AF Packet will be protected with reed-solomon and split in fragments
- PFT pft(207, 3, edi_conf);
+ PFT pft(edi_conf);
edi_pft = pft;
#endif
}
@@ -419,7 +419,9 @@ void DabMultiplexer::mux_frame(std::vector<boost::shared_ptr<DabOutput> >& outpu
// The above Tag Items will be assembled into a TAG Packet
TagPacket edi_tagpacket;
- edi_tagDETI.atstf = 0; // TODO add ATST support
+ edi_tagDETI.atstf = 1;
+ edi_tagDETI.utco = 0;
+ edi_tagDETI.seconds = 0;
date = getDabTime();
@@ -1698,6 +1700,8 @@ void DabMultiplexer::mux_frame(std::vector<boost::shared_ptr<DabOutput> >& outpu
tist->TIST = htonl(0xffffff) | 0xff;
}
+ edi_tagDETI.tsta = tist->TIST;
+
timestamp += 3 << 17;
if (timestamp > 0xf9ffff)
{
@@ -1738,9 +1742,8 @@ void DabMultiplexer::mux_frame(std::vector<boost::shared_ptr<DabOutput> >& outpu
edi_tagpacket.tag_items.push_back(&edi_tagStarPtr);
edi_tagpacket.tag_items.push_back(&edi_tagDETI);
- list<TagESTn>::iterator tag;
- for (tag = edi_subchannels.begin(); tag != edi_subchannels.end(); ++tag) {
- edi_tagpacket.tag_items.push_back(&(*tag));
+ for (auto& tag : edi_subchannels) {
+ edi_tagpacket.tag_items.push_back(&tag);
}
// Assemble into one AF Packet
@@ -1752,24 +1755,20 @@ void DabMultiplexer::mux_frame(std::vector<boost::shared_ptr<DabOutput> >& outpu
edi_pft.Assemble(edi_afpacket);
// Send over ethernet
- vector< vector<uint8_t> >::iterator edi_frag;
- for (edi_frag = edi_fragments.begin();
- edi_frag != edi_fragments.end();
- ++edi_frag) {
-
+ for (const auto& edi_frag : edi_fragments) {
UdpPacket udppacket;
InetAddress& addr = udppacket.getAddress();
addr.setAddress(edi_conf.dest_addr.c_str());
addr.setPort(edi_conf.dest_port);
- udppacket.addData(&(edi_frag->front()), edi_frag->size());
+ udppacket.addData(&(edi_frag.front()), edi_frag.size());
edi_output.send(udppacket);
if (edi_conf.dump) {
std::ostream_iterator<uint8_t> debug_iterator(edi_debug_file);
- std::copy(edi_frag->begin(), edi_frag->end(), debug_iterator);
+ std::copy(edi_frag.begin(), edi_frag.end(), debug_iterator);
}
}
@@ -1790,11 +1789,11 @@ void DabMultiplexer::mux_frame(std::vector<boost::shared_ptr<DabOutput> >& outpu
udppacket.addData(&(edi_afpacket.front()), edi_afpacket.size());
edi_output.send(udppacket);
- }
- if (edi_conf.dump) {
- std::ostream_iterator<uint8_t> debug_iterator(edi_debug_file);
- std::copy(edi_afpacket.begin(), edi_afpacket.end(), debug_iterator);
+ if (edi_conf.dump) {
+ std::ostream_iterator<uint8_t> debug_iterator(edi_debug_file);
+ std::copy(edi_afpacket.begin(), edi_afpacket.end(), debug_iterator);
+ }
}
}
#endif // HAVE_OUTPUT_EDI
diff --git a/src/DabMux.cpp b/src/DabMux.cpp
index 20dc31d..854c311 100644
--- a/src/DabMux.cpp
+++ b/src/DabMux.cpp
@@ -331,6 +331,9 @@ int main(int argc, char *argv[])
edi_conf.enable_pft = pt_edi.get<bool>("enable_pft");
edi_conf.verbose = pt_edi.get<bool>("verbose");
+ edi_conf.fec = pt_edi.get<unsigned int>("fec");
+ edi_conf.chunk_len = pt_edi.get<unsigned int>("chunk_len", 207);
+
mux.set_edi_config(edi_conf);
#else
throw runtime_error("EDI output not compiled in");
diff --git a/src/UdpSocket.cpp b/src/UdpSocket.cpp
index 6d2728b..74730e9 100644
--- a/src/UdpSocket.cpp
+++ b/src/UdpSocket.cpp
@@ -333,7 +333,7 @@ char *UdpPacket::getData()
* @param data Pointer to the data to add
* @param size Size in bytes of new data
*/
-void UdpPacket::addData(void *data, unsigned size)
+void UdpPacket::addData(const void *data, unsigned size)
{
if (length + size > this->size) {
setSize(this->size << 1);
diff --git a/src/UdpSocket.h b/src/UdpSocket.h
index f1487b3..109732f 100644
--- a/src/UdpSocket.h
+++ b/src/UdpSocket.h
@@ -106,7 +106,7 @@ class UdpPacket {
~UdpPacket();
char *getData();
- void addData(void *data, unsigned size);
+ void addData(const void *data, unsigned size);
unsigned long getLength();
unsigned long getSize();
unsigned long getOffset();
diff --git a/src/dabOutput/dabOutput.h b/src/dabOutput/dabOutput.h
index f6980fe..c8ce9f2 100644
--- a/src/dabOutput/dabOutput.h
+++ b/src/dabOutput/dabOutput.h
@@ -55,6 +55,8 @@
// Configuration for EDI output
struct edi_configuration_t {
+ unsigned chunk_len; // RSk, data length of each chunk
+ unsigned fec; // number of fragments that can be recovered
bool enabled;
unsigned int source_port;
bool dump;
diff --git a/src/dabOutput/edi/AFPacket.cpp b/src/dabOutput/edi/AFPacket.cpp
index 3b69f1c..a1d39b9 100644
--- a/src/dabOutput/edi/AFPacket.cpp
+++ b/src/dabOutput/edi/AFPacket.cpp
@@ -39,7 +39,7 @@
#define AFHEADER_PT_TAG 'T'
// AF Packet Major (3 bits) and Minor (4 bits) version
-#define AFHEADER_VERSION 0x8 // MAJ=1, MIN=0
+#define AFHEADER_VERSION 0x10 // MAJ=1, MIN=0
AFPacket AFPacketiser::Assemble(TagPacket tag_packet)
{
@@ -65,6 +65,7 @@ AFPacket AFPacketiser::Assemble(TagPacket tag_packet)
// fill rest of header
packet.push_back(seq >> 8);
packet.push_back(seq & 0xFF);
+ seq++;
packet.push_back((have_crc ? 0x80 : 0) | AFHEADER_VERSION); // ar_cf: CRC=1
packet.push_back(AFHEADER_PT_TAG);
diff --git a/src/dabOutput/edi/PFT.cpp b/src/dabOutput/edi/PFT.cpp
index e1c8249..7f463cc 100644
--- a/src/dabOutput/edi/PFT.cpp
+++ b/src/dabOutput/edi/PFT.cpp
@@ -52,7 +52,7 @@ RSBlock PFT::Protect(AFPacket af_packet)
// number of chunks is ceil(afpacketsize / m_k)
// TS 102 821 7.2.2: c = ceil(l / k_max)
- m_num_chunks = CEIL_DIV(af_packet.size(), 207);
+ m_num_chunks = CEIL_DIV(af_packet.size(), m_k);
if (m_verbose) {
fprintf(stderr, "Protect %zu chunks of size %zu\n",
diff --git a/src/dabOutput/edi/PFT.h b/src/dabOutput/edi/PFT.h
index 9c6f7bd..e17d282 100644
--- a/src/dabOutput/edi/PFT.h
+++ b/src/dabOutput/edi/PFT.h
@@ -57,11 +57,9 @@ class PFT
m_verbose(false)
{ }
- PFT(unsigned int RSDataWordLength,
- unsigned int NumRecoverableFragments,
- const edi_configuration_t &conf) :
- m_k(RSDataWordLength),
- m_m(NumRecoverableFragments),
+ PFT(const edi_configuration_t &conf) :
+ m_k(conf.chunk_len),
+ m_m(conf.fec),
m_dest_port(conf.dest_port),
m_pseq(0),
m_verbose(conf.verbose)
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-25 08:07:35 +0000