diff options
Diffstat (limited to 'src/dabOutput')
| -rw-r--r-- | src/dabOutput/dabOutput.h | 21 | ||||
| -rw-r--r-- | src/dabOutput/dabOutputTcp.cpp | 2 | ||||
| -rw-r--r-- | src/dabOutput/dabOutputUdp.cpp | 65 | ||||
| -rw-r--r-- | src/dabOutput/edi/AFPacket.cpp | 96 | ||||
| -rw-r--r-- | src/dabOutput/edi/AFPacket.h | 61 | ||||
| -rw-r--r-- | src/dabOutput/edi/Config.h | 77 | ||||
| -rw-r--r-- | src/dabOutput/edi/Interleaver.cpp | 122 | ||||
| -rw-r--r-- | src/dabOutput/edi/Interleaver.h | 75 | ||||
| -rw-r--r-- | src/dabOutput/edi/PFT.cpp | 327 | ||||
| -rw-r--r-- | src/dabOutput/edi/PFT.h | 78 | ||||
| -rw-r--r-- | src/dabOutput/edi/TagItems.cpp | 216 | ||||
| -rw-r--r-- | src/dabOutput/edi/TagItems.h | 149 | ||||
| -rw-r--r-- | src/dabOutput/edi/TagPacket.cpp | 79 | ||||
| -rw-r--r-- | src/dabOutput/edi/TagPacket.h | 56 | ||||
| -rw-r--r-- | src/dabOutput/edi/Transport.cpp | 182 | ||||
| -rw-r--r-- | src/dabOutput/edi/Transport.h | 69 |
16 files changed, 34 insertions, 1641 deletions
diff --git a/src/dabOutput/dabOutput.h b/src/dabOutput/dabOutput.h index 9cc18d7..c7e570b 100644 --- a/src/dabOutput/dabOutput.h +++ b/src/dabOutput/dabOutput.h @@ -28,8 +28,7 @@ #pragma once -#include "UdpSocket.h" -#include "TcpSocket.h" +#include "Socket.h" #include "Log.h" #include "string.h" #include <stdexcept> @@ -57,6 +56,8 @@ class DabOutput { return Open(name.c_str()); } + + // Return -1 on failure virtual int Write(void* buffer, int size) = 0; virtual int Close() = 0; @@ -145,15 +146,7 @@ class DabOutputRaw : public DabOutput class DabOutputUdp : public DabOutput { public: - DabOutputUdp() { - packet_ = new UdpPacket(6144); - socket_ = new UdpSocket(); - } - - virtual ~DabOutputUdp() { - delete socket_; - delete packet_; - } + DabOutputUdp(); int Open(const char* name); int Write(void* buffer, int size); @@ -171,8 +164,8 @@ class DabOutputUdp : public DabOutput DabOutputUdp operator=(const DabOutputUdp& other) = delete; std::string uri_; - UdpSocket* socket_; - UdpPacket* packet_; + Socket::UDPSocket socket_; + Socket::UDPPacket packet_; }; // -------------- TCP ------------------ @@ -190,7 +183,7 @@ class DabOutputTcp : public DabOutput private: std::string uri_; - std::shared_ptr<TCPDataDispatcher> dispatcher_; + std::shared_ptr<Socket::TCPDataDispatcher> dispatcher_; }; // -------------- Simul ------------------ diff --git a/src/dabOutput/dabOutputTcp.cpp b/src/dabOutput/dabOutputTcp.cpp index 87dbfd5..4dc3538 100644 --- a/src/dabOutput/dabOutputTcp.cpp +++ b/src/dabOutput/dabOutputTcp.cpp @@ -94,7 +94,7 @@ int DabOutputTcp::Open(const char* name) uri_ = name; if (success) { - dispatcher_ = make_shared<TCPDataDispatcher>(MAX_QUEUED_ETI_FRAMES); + dispatcher_ = make_shared<Socket::TCPDataDispatcher>(MAX_QUEUED_ETI_FRAMES); dispatcher_->start(port, address); } else { diff --git a/src/dabOutput/dabOutputUdp.cpp b/src/dabOutput/dabOutputUdp.cpp index c129569..b9c22db 100644 --- a/src/dabOutput/dabOutputUdp.cpp +++ b/src/dabOutput/dabOutputUdp.cpp @@ -38,18 +38,12 @@ #include <cstdio> #include <limits.h> #include "dabOutput.h" -#include "UdpSocket.h" - -#ifdef _WIN32 -# include <fscfg.h> -# include <sdci.h> -#else -# include <netinet/in.h> -# include <sys/types.h> -# include <sys/socket.h> -# include <sys/ioctl.h> -# include <net/if_arp.h> -#endif +#include "Socket.h" + +DabOutputUdp::DabOutputUdp() : + socket_(), + packet_(6144) +{ } int DabOutputUdp::Open(const char* name) { @@ -64,12 +58,6 @@ int DabOutputUdp::Open(const char* name) regex_constants::match_default)) { string address = what[1]; - if (this->packet_->getAddress().setAddress(address.c_str()) == -1) { - etiLog.level(error) << "can't set address " << - address << "(" << inetErrDesc << ": " << inetErrMsg << ")"; - return -1; - } - string port_str = what[2]; long port = std::strtol(port_str.c_str(), nullptr, 0); @@ -79,7 +67,7 @@ int DabOutputUdp::Open(const char* name) return -1; } - this->packet_->getAddress().setPort(port); + packet_.address.resolveUdpDestination(address, port); string query_params = what[3]; smatch query_what; @@ -87,28 +75,25 @@ int DabOutputUdp::Open(const char* name) regex_constants::match_default)) { string src = query_what[1]; - int err = socket_->setMulticastSource(src.c_str()); - if (err) { - etiLog.level(error) << "UDP output socket set source failed!"; - return -1; - } + try { + socket_.setMulticastSource(src.c_str()); - string ttl_str = query_what[2]; + string ttl_str = query_what[2]; - if (not ttl_str.empty()) { - long ttl = std::strtol(ttl_str.c_str(), nullptr, 0); - if ((ttl <= 0) || (ttl >= 255)) { - etiLog.level(error) << "Invalid TTL setting in " << - uri_without_proto; - return -1; - } + if (not ttl_str.empty()) { + long ttl = std::strtol(ttl_str.c_str(), nullptr, 0); + if ((ttl <= 0) || (ttl >= 255)) { + etiLog.level(error) << "Invalid TTL setting in " << + uri_without_proto; + return -1; + } - err = socket_->setMulticastTTL(ttl); - if (err) { - etiLog.level(error) << "UDP output socket set TTL failed!"; - return -1; + socket_.setMulticastTTL(ttl); } } + catch (const std::runtime_error& e) { + etiLog.level(error) << "Failed to set UDP output settings" << e.what(); + } } else if (not query_params.empty()) { etiLog.level(error) << "UDP output: could not parse parameters " << @@ -129,9 +114,11 @@ int DabOutputUdp::Open(const char* name) int DabOutputUdp::Write(void* buffer, int size) { - this->packet_->setSize(0); - this->packet_->addData(buffer, size); - return this->socket_->send(*this->packet_); + const uint8_t *buf = reinterpret_cast<uint8_t*>(buffer); + packet_.buffer.resize(0); + std::copy(buf, buf + size, std::back_inserter(packet_.buffer)); + socket_.send(packet_); + return 0; } #endif // defined(HAVE_OUTPUT_UDP) diff --git a/src/dabOutput/edi/AFPacket.cpp b/src/dabOutput/edi/AFPacket.cpp deleted file mode 100644 index a58a980..0000000 --- a/src/dabOutput/edi/AFPacket.cpp +++ /dev/null @@ -1,96 +0,0 @@ -/* - Copyright (C) 2014 - Matthias P. Braendli, matthias.braendli@mpb.li - - http://www.opendigitalradio.org - - EDI output. - This implements an AF Packet as defined ETSI TS 102 821. - Also see ETSI TS 102 693 - - */ -/* - This file is part of ODR-DabMux. - - ODR-DabMux is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as - published by the Free Software Foundation, either version 3 of the - License, or (at your option) any later version. - - ODR-DabMux is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with ODR-DabMux. If not, see <http://www.gnu.org/licenses/>. - */ -#include "config.h" -#include "crc.h" -#include "AFPacket.h" -#include "TagItems.h" -#include "TagPacket.h" -#include <vector> -#include <string> -#include <iostream> -#include <cstdio> -#include <stdint.h> -#include <arpa/inet.h> - -namespace edi { - -// Header PT field. AF packet contains TAG payload -const uint8_t AFHEADER_PT_TAG = 'T'; - -// AF Packet Major (3 bits) and Minor (4 bits) version -const uint8_t AFHEADER_VERSION = 0x10; // MAJ=1, MIN=0 - -AFPacket AFPacketiser::Assemble(TagPacket tag_packet) -{ - std::vector<uint8_t> payload = tag_packet.Assemble(); - - if (m_verbose) - std::cerr << "Assemble AFPacket " << seq << std::endl; - - std::string pack_data("AF"); // SYNC - std::vector<uint8_t> packet(pack_data.begin(), pack_data.end()); - - uint32_t taglength = payload.size(); - - if (m_verbose) - std::cerr << " AFPacket payload size " << payload.size() << std::endl; - - // write length into packet - packet.push_back((taglength >> 24) & 0xFF); - packet.push_back((taglength >> 16) & 0xFF); - packet.push_back((taglength >> 8) & 0xFF); - packet.push_back(taglength & 0xFF); - - // 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); - - // insert payload, must have a length multiple of 8 bytes - packet.insert(packet.end(), payload.begin(), payload.end()); - - // calculate CRC over AF Header and payload - uint16_t crc = 0xffff; - crc = crc16(crc, &(packet.front()), packet.size()); - crc ^= 0xffff; - - if (m_verbose) - fprintf(stderr, " AFPacket crc %x\n", crc); - - packet.push_back((crc >> 8) & 0xFF); - packet.push_back(crc & 0xFF); - - if (m_verbose) - std::cerr << " AFPacket length " << packet.size() << std::endl; - - return packet; -} - -} diff --git a/src/dabOutput/edi/AFPacket.h b/src/dabOutput/edi/AFPacket.h deleted file mode 100644 index b4ccef1..0000000 --- a/src/dabOutput/edi/AFPacket.h +++ /dev/null @@ -1,61 +0,0 @@ -/* - Copyright (C) 2014 - Matthias P. Braendli, matthias.braendli@mpb.li - - http://www.opendigitalradio.org - - EDI output. - This implements an AF Packet as defined ETSI TS 102 821. - Also see ETSI TS 102 693 - - */ -/* - This file is part of ODR-DabMux. - - ODR-DabMux is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as - published by the Free Software Foundation, either version 3 of the - License, or (at your option) any later version. - - ODR-DabMux is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with ODR-DabMux. If not, see <http://www.gnu.org/licenses/>. - */ - -#pragma once - -#include "config.h" -#include <vector> -#include <stdint.h> -#include "TagItems.h" -#include "TagPacket.h" - -namespace edi { - -typedef std::vector<uint8_t> AFPacket; - -// ETSI TS 102 821, 6.1 AF packet structure -class AFPacketiser -{ - public: - AFPacketiser() : - m_verbose(false) {}; - AFPacketiser(bool verbose) : - m_verbose(verbose) {}; - - AFPacket Assemble(TagPacket tag_packet); - - private: - static const bool have_crc = true; - - uint16_t seq = 0; //counter that overflows at 0xFFFF - - bool m_verbose; -}; - -} - diff --git a/src/dabOutput/edi/Config.h b/src/dabOutput/edi/Config.h deleted file mode 100644 index 55d5f0f..0000000 --- a/src/dabOutput/edi/Config.h +++ /dev/null @@ -1,77 +0,0 @@ -/* - Copyright (C) 2019 - Matthias P. Braendli, matthias.braendli@mpb.li - - http://www.opendigitalradio.org - - EDI output, - UDP and TCP transports and their configuration - - */ -/* - This file is part of ODR-DabMux. - - ODR-DabMux is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as - published by the Free Software Foundation, either version 3 of the - License, or (at your option) any later version. - - ODR-DabMux is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with ODR-DabMux. If not, see <http://www.gnu.org/licenses/>. - */ - -#pragma once - -#include "config.h" -#include <vector> -#include <string> -#include <memory> -#include <cstdint> - -namespace edi { - -/** Configuration for EDI output */ - -struct destination_t { - virtual ~destination_t() {}; -}; - -// Can represent both unicast and multicast destinations -struct udp_destination_t : public destination_t { - std::string dest_addr; - std::string source_addr; - unsigned int source_port = 0; - unsigned int ttl = 10; -}; - -// TCP server that can accept multiple connections -struct tcp_destination_t : public destination_t { - unsigned int listen_port = 0; - size_t max_frames_queued = 1024; -}; - -struct configuration_t { - unsigned chunk_len = 207; // RSk, data length of each chunk - unsigned fec = 0; // number of fragments that can be recovered - bool dump = false; // dump a file with the EDI packets - bool verbose = false; - bool enable_pft = false; // Enable protection and fragmentation - unsigned int tagpacket_alignment = 0; - std::vector<std::shared_ptr<destination_t> > destinations; - unsigned int dest_port = 0; // common destination port, because it's encoded in the transport layer - unsigned int latency_frames = 0; // if nonzero, enable interleaver with a latency of latency_frames * 24ms - - bool enabled() const { return destinations.size() > 0; } - bool interleaver_enabled() const { return latency_frames > 0; } - - void print() const; -}; - -} - - diff --git a/src/dabOutput/edi/Interleaver.cpp b/src/dabOutput/edi/Interleaver.cpp deleted file mode 100644 index f26a50e..0000000 --- a/src/dabOutput/edi/Interleaver.cpp +++ /dev/null @@ -1,122 +0,0 @@ -/* - Copyright (C) 2017 - Matthias P. Braendli, matthias.braendli@mpb.li - - http://www.opendigitalradio.org - - EDI output, - Interleaving of PFT fragments to increase robustness against - burst packet loss. - - This is possible because EDI has to assume that fragments may reach - the receiver out of order. - - */ -/* - This file is part of ODR-DabMux. - - ODR-DabMux is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as - published by the Free Software Foundation, either version 3 of the - License, or (at your option) any later version. - - ODR-DabMux is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with ODR-DabMux. If not, see <http://www.gnu.org/licenses/>. - */ - -#include "Interleaver.h" -#include <cassert> - -namespace edi { - -void Interleaver::SetLatency(size_t latency_frames) -{ - m_latency = latency_frames; -} - -Interleaver::fragment_vec Interleaver::Interleave(fragment_vec &fragments) -{ - m_fragment_count = fragments.size(); - - // Create vectors containing Fcount*latency fragments in total - // and store them into the deque - if (m_buffer.empty()) { - m_buffer.emplace_back(); - } - - auto& last_buffer = m_buffer.back(); - - for (auto& fragment : fragments) { - const bool last_buffer_is_complete = - (last_buffer.size() >= m_fragment_count * m_latency); - - if (last_buffer_is_complete) { - m_buffer.emplace_back(); - last_buffer = m_buffer.back(); - } - - last_buffer.push_back(std::move(fragment)); - } - - fragments.clear(); - - while ( not m_buffer.empty() and - (m_buffer.front().size() >= m_fragment_count * m_latency)) { - - auto& first_buffer = m_buffer.front(); - - assert(first_buffer.size() == m_fragment_count * m_latency); - - /* Assume we have 5 fragments per AF frame, and latency of 3. - * This will give the following strides: - * 0 1 2 - * +-------+-------+---+ - * | 0 1 | 2 3 | 4 | - * | | +---+ | - * | 5 6 | 7 | 8 9 | - * | +---+ | | - * |10 |11 12 |13 14 | - * +---+-------+-------+ - * - * ix will be 0, 5, 10, 1, 6 in the first loop - */ - - for (size_t i = 0; i < m_fragment_count; i++) { - const size_t ix = m_interleave_offset + m_fragment_count * m_stride; - m_interleaved_fragments.push_back(first_buffer.at(ix)); - - m_stride += 1; - if (m_stride >= m_latency) { - m_interleave_offset++; - m_stride = 0; - } - } - - if (m_interleave_offset >= m_fragment_count) { - m_interleave_offset = 0; - m_stride = 0; - m_buffer.pop_front(); - } - } - - std::vector<PFTFragment> interleaved_frags; - - const size_t n = std::min(m_fragment_count, m_interleaved_fragments.size()); - std::move(m_interleaved_fragments.begin(), - m_interleaved_fragments.begin() + n, - std::back_inserter(interleaved_frags)); - m_interleaved_fragments.erase( - m_interleaved_fragments.begin(), - m_interleaved_fragments.begin() + n); - - return interleaved_frags; -} - -} - - diff --git a/src/dabOutput/edi/Interleaver.h b/src/dabOutput/edi/Interleaver.h deleted file mode 100644 index f1cff30..0000000 --- a/src/dabOutput/edi/Interleaver.h +++ /dev/null @@ -1,75 +0,0 @@ -/* - Copyright (C) 2017 - Matthias P. Braendli, matthias.braendli@mpb.li - - http://www.opendigitalradio.org - - EDI output, - Interleaving of PFT fragments to increase robustness against - burst packet loss. - - This is possible because EDI has to assume that fragments may reach - the receiver out of order. - - */ -/* - This file is part of ODR-DabMux. - - ODR-DabMux is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as - published by the Free Software Foundation, either version 3 of the - License, or (at your option) any later version. - - ODR-DabMux is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with ODR-DabMux. If not, see <http://www.gnu.org/licenses/>. - */ - -#pragma once - -#include "config.h" -#include <vector> -#include <deque> -#include <stdexcept> -#include <stdint.h> -#include "Log.h" -#include "PFT.h" - -namespace edi { - -class Interleaver { - public: - using fragment_vec = std::vector<PFTFragment>; - - /* Configure the interleaver to use latency_frames number of AF - * packets for interleaving. Total delay through the interleaver - * will be latency_frames * 24ms - */ - void SetLatency(size_t latency_frames); - - /* Move the fragments for an AF Packet into the interleaver and - * return interleaved fragments to be transmitted. - */ - fragment_vec Interleave(fragment_vec &fragments); - - private: - size_t m_latency = 0; - size_t m_fragment_count = 0; - size_t m_interleave_offset = 0; - size_t m_stride = 0; - - /* Buffer that accumulates enough fragments to interleave */ - std::deque<fragment_vec> m_buffer; - - /* Buffer that contains fragments that have been interleaved, - * to avoid that the interleaver output is too bursty - */ - std::deque<PFTFragment> m_interleaved_fragments; -}; - -} - diff --git a/src/dabOutput/edi/PFT.cpp b/src/dabOutput/edi/PFT.cpp deleted file mode 100644 index 5b93016..0000000 --- a/src/dabOutput/edi/PFT.cpp +++ /dev/null @@ -1,327 +0,0 @@ -/* - Copyright (C) 2019 - Matthias P. Braendli, matthias.braendli@mpb.li - - http://www.opendigitalradio.org - - EDI output, - Protection, Fragmentation and Transport. (PFT) - - Are supported: - Reed-Solomon and Fragmentation - - This implements part of PFT as defined ETSI TS 102 821. - - */ -/* - This file is part of ODR-DabMux. - - ODR-DabMux is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as - published by the Free Software Foundation, either version 3 of the - License, or (at your option) any later version. - - ODR-DabMux is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with ODR-DabMux. If not, see <http://www.gnu.org/licenses/>. - */ - -#include "config.h" -#include <vector> -#include <list> -#include <cstdio> -#include <cstring> -#include <stdint.h> -#include <arpa/inet.h> -#include <stdexcept> -#include <sstream> -#include "PFT.h" -#include "crc.h" -#include "ReedSolomon.h" - -namespace edi { - -using namespace std; - -// An integer division that rounds up, i.e. ceil(a/b) -#define CEIL_DIV(a, b) (a % b == 0 ? a / b : a / b + 1) - -PFT::PFT() { } - -PFT::PFT(const configuration_t &conf) : - m_k(conf.chunk_len), - m_m(conf.fec), - m_dest_port(conf.dest_port), - m_pseq(0), - m_num_chunks(0), - m_verbose(conf.verbose) - { - if (m_k > 207) { - etiLog.level(warn) << - "EDI PFT: maximum chunk size is 207."; - throw std::out_of_range("EDI PFT Chunk size too large."); - } - - if (m_m > 5) { - etiLog.level(warn) << - "EDI PFT: high number of recoverable fragments" - " may lead to large overhead"; - // See TS 102 821, 7.2.1 Known values, list entry for 'm' - } - } - -RSBlock PFT::Protect(AFPacket af_packet) -{ - RSBlock rs_block; - - // 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(), m_k); - - if (m_verbose) { - fprintf(stderr, "Protect %zu chunks of size %zu\n", - m_num_chunks, af_packet.size()); - } - - // calculate size of chunk: - // TS 102 821 7.2.2: k = ceil(l / c) - // chunk_len does not include the 48 bytes of protection. - const size_t chunk_len = CEIL_DIV(af_packet.size(), m_num_chunks); - if (chunk_len > 207) { - std::stringstream ss; - ss << "Chunk length " << chunk_len << " too large (>207)"; - throw std::runtime_error(ss.str()); - } - - // The last RS chunk is zero padded - // TS 102 821 7.2.2: z = c*k - l - const size_t zero_pad = m_num_chunks * chunk_len - af_packet.size(); - - // Create the RS(k+p,k) encoder - const int firstRoot = 1; // Discovered by analysing EDI dump - const int gfPoly = 0x11d; - const bool reverse = false; - // The encoding has to be 255, 207 always, because the chunk has to - // be padded at the end, and not at the beginning as libfec would - // do - ReedSolomon rs_encoder(255, 207, reverse, gfPoly, firstRoot); - - // add zero padding to last chunk - for (size_t i = 0; i < zero_pad; i++) { - af_packet.push_back(0); - } - - if (m_verbose) { - fprintf(stderr, " add %zu zero padding\n", zero_pad); - } - - // Calculate RS for each chunk and assemble RS block - for (size_t i = 0; i < af_packet.size(); i+= chunk_len) { - vector<uint8_t> chunk(207); - vector<uint8_t> protection(PARITYBYTES); - - // copy chunk_len bytes into new chunk - memcpy(&chunk.front(), &af_packet[i], chunk_len); - - // calculate RS for chunk with padding - rs_encoder.encode(&chunk.front(), &protection.front(), 207); - - // Drop the padding - chunk.resize(chunk_len); - - // append new chunk and protection to the RS Packet - rs_block.insert(rs_block.end(), chunk.begin(), chunk.end()); - rs_block.insert(rs_block.end(), protection.begin(), protection.end()); - } - - return rs_block; -} - -vector< vector<uint8_t> > PFT::ProtectAndFragment(AFPacket af_packet) -{ - const bool enable_RS = (m_m > 0); - - if (enable_RS) { - RSBlock rs_block = Protect(af_packet); - -#if 0 - fprintf(stderr, " af_packet (%zu):", af_packet.size()); - for (size_t i = 0; i < af_packet.size(); i++) { - fprintf(stderr, "%02x ", af_packet[i]); - } - fprintf(stderr, "\n"); - - fprintf(stderr, " rs_block (%zu):", rs_block.size()); - for (size_t i = 0; i < rs_block.size(); i++) { - fprintf(stderr, "%02x ", rs_block[i]); - } - fprintf(stderr, "\n"); -#endif - - // TS 102 821 7.2.2: s_max = MIN(floor(c*p/(m+1)), MTU - h)) - const size_t max_payload_size = ( m_num_chunks * PARITYBYTES ) / (m_m + 1); - - // Calculate fragment count and size - // TS 102 821 7.2.2: ceil((l + c*p + z) / s_max) - // l + c*p + z = length of RS block - const size_t num_fragments = CEIL_DIV(rs_block.size(), max_payload_size); - - // TS 102 821 7.2.2: ceil((l + c*p + z) / f) - const size_t fragment_size = CEIL_DIV(rs_block.size(), num_fragments); - - if (m_verbose) - fprintf(stderr, " PnF fragment_size %zu, num frag %zu\n", - fragment_size, num_fragments); - - vector< vector<uint8_t> > fragments(num_fragments); - - for (size_t i = 0; i < num_fragments; i++) { - fragments[i].resize(fragment_size); - for (size_t j = 0; j < fragment_size; j++) { - const size_t ix = j*num_fragments + i; - if (ix < rs_block.size()) { - fragments[i][j] = rs_block[ix]; - } - else { - fragments[i][j] = 0; - } - } - } - - return fragments; - } - else { // No RS, only fragmentation - // TS 102 821 7.2.2: s_max = MTU - h - // Ethernet MTU is 1500, but maybe you are routing over a network which - // has some sort of packet encapsulation. Add some margin. - const size_t max_payload_size = 1400; - - // Calculate fragment count and size - // TS 102 821 7.2.2: ceil((l + c*p + z) / s_max) - // l + c*p + z = length of AF packet - const size_t num_fragments = CEIL_DIV(af_packet.size(), max_payload_size); - - // TS 102 821 7.2.2: ceil((l + c*p + z) / f) - const size_t fragment_size = CEIL_DIV(af_packet.size(), num_fragments); - vector< vector<uint8_t> > fragments(num_fragments); - - for (size_t i = 0; i < num_fragments; i++) { - fragments[i].reserve(fragment_size); - - for (size_t j = 0; j < fragment_size; j++) { - const size_t ix = i*fragment_size + j; - if (ix < af_packet.size()) { - fragments[i].push_back(af_packet.at(ix)); - } - else { - break; - } - } - } - - return fragments; - } -} - -std::vector< PFTFragment > PFT::Assemble(AFPacket af_packet) -{ - vector< vector<uint8_t> > fragments = ProtectAndFragment(af_packet); - vector< vector<uint8_t> > pft_fragments; // These contain PF headers - - const bool enable_RS = (m_m > 0); - const bool enable_transport = true; - - unsigned int findex = 0; - - unsigned fcount = fragments.size(); - - // calculate size of chunk: - // TS 102 821 7.2.2: k = ceil(l / c) - // chunk_len does not include the 48 bytes of protection. - const size_t chunk_len = enable_RS ? - CEIL_DIV(af_packet.size(), m_num_chunks) : 0; - - // The last RS chunk is zero padded - // TS 102 821 7.2.2: z = c*k - l - const size_t zero_pad = enable_RS ? - m_num_chunks * chunk_len - af_packet.size() : 0; - - for (const auto &fragment : fragments) { - // Psync - std::string psync("PF"); - std::vector<uint8_t> packet(psync.begin(), psync.end()); - - // Pseq - packet.push_back(m_pseq >> 8); - packet.push_back(m_pseq & 0xFF); - - // Findex - packet.push_back(findex >> 16); - packet.push_back(findex >> 8); - packet.push_back(findex & 0xFF); - findex++; - - // Fcount - packet.push_back(fcount >> 16); - packet.push_back(fcount >> 8); - packet.push_back(fcount & 0xFF); - - // RS (1 bit), transport (1 bit) and Plen (14 bits) - unsigned int plen = fragment.size(); - if (enable_RS) { - plen |= 0x8000; // Set FEC bit - } - - if (enable_transport) { - plen |= 0x4000; // Set ADDR bit - } - - packet.push_back(plen >> 8); - packet.push_back(plen & 0xFF); - - if (enable_RS) { - packet.push_back(chunk_len); // RSk - packet.push_back(zero_pad); // RSz - } - - if (enable_transport) { - // Source (16 bits) - uint16_t addr_source = 0; - packet.push_back(addr_source >> 8); - packet.push_back(addr_source & 0xFF); - - // Dest (16 bits) - packet.push_back(m_dest_port >> 8); - packet.push_back(m_dest_port & 0xFF); - } - - // calculate CRC over AF Header and payload - uint16_t crc = 0xffff; - crc = crc16(crc, &(packet.front()), packet.size()); - crc ^= 0xffff; - - packet.push_back((crc >> 8) & 0xFF); - packet.push_back(crc & 0xFF); - - // insert payload, must have a length multiple of 8 bytes - packet.insert(packet.end(), fragment.begin(), fragment.end()); - - pft_fragments.push_back(packet); - -#if 0 - fprintf(stderr, "* PFT pseq %d, findex %d, fcount %d, plen %d\n", - m_pseq, findex, fcount, plen & ~0x8000); -#endif - } - - m_pseq++; - - return pft_fragments; -} - -} - diff --git a/src/dabOutput/edi/PFT.h b/src/dabOutput/edi/PFT.h deleted file mode 100644 index 4076bf3..0000000 --- a/src/dabOutput/edi/PFT.h +++ /dev/null @@ -1,78 +0,0 @@ -/* - Copyright (C) 2019 - Matthias P. Braendli, matthias.braendli@mpb.li - - http://www.opendigitalradio.org - - EDI output, - Protection, Fragmentation and Transport. (PFT) - - Are supported: - Reed-Solomon and Fragmentation - - This implements part of PFT as defined ETSI TS 102 821. - - */ -/* - This file is part of ODR-DabMux. - - ODR-DabMux is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as - published by the Free Software Foundation, either version 3 of the - License, or (at your option) any later version. - - ODR-DabMux is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with ODR-DabMux. If not, see <http://www.gnu.org/licenses/>. - */ - -#pragma once - -#include "config.h" -#include <vector> -#include <list> -#include <stdexcept> -#include <stdint.h> -#include "AFPacket.h" -#include "Log.h" -#include "ReedSolomon.h" -#include "dabOutput/edi/Config.h" - -namespace edi { - -typedef std::vector<uint8_t> RSBlock; -typedef std::vector<uint8_t> PFTFragment; - -class PFT -{ - public: - static constexpr int PARITYBYTES = 48; - - PFT(); - PFT(const configuration_t& conf); - - // return a list of PFT fragments with the correct - // PFT headers - std::vector< PFTFragment > Assemble(AFPacket af_packet); - - // Apply Reed-Solomon FEC to the AF Packet - RSBlock Protect(AFPacket af_packet); - - // Cut a RSBlock into several fragments that can be transmitted - std::vector< std::vector<uint8_t> > ProtectAndFragment(AFPacket af_packet); - - private: - unsigned int m_k = 207; // length of RS data word - unsigned int m_m = 3; // number of fragments that can be recovered if lost - unsigned int m_dest_port = 12000; // Destination port for transport header - uint16_t m_pseq = 0; - size_t m_num_chunks = 0; - bool m_verbose = 0; -}; - -} - diff --git a/src/dabOutput/edi/TagItems.cpp b/src/dabOutput/edi/TagItems.cpp deleted file mode 100644 index dfb4934..0000000 --- a/src/dabOutput/edi/TagItems.cpp +++ /dev/null @@ -1,216 +0,0 @@ -/* - EDI output. - This defines a few TAG items as defined ETSI TS 102 821 and - ETSI TS 102 693 - - Copyright (C) 2019 - Matthias P. Braendli, matthias.braendli@mpb.li - - http://www.opendigitalradio.org - - */ -/* - This file is part of ODR-DabMux. - - ODR-DabMux is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as - published by the Free Software Foundation, either version 3 of the - License, or (at your option) any later version. - - ODR-DabMux is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with ODR-DabMux. If not, see <http://www.gnu.org/licenses/>. - */ - -#include "config.h" -#include "TagItems.h" -#include <vector> -#include <iostream> -#include <string> -#include <stdint.h> -#include <stdexcept> - -namespace edi { - -std::vector<uint8_t> TagStarPTR::Assemble() -{ - //std::cerr << "TagItem *ptr" << std::endl; - std::string pack_data("*ptr"); - std::vector<uint8_t> packet(pack_data.begin(), pack_data.end()); - - packet.push_back(0); - packet.push_back(0); - packet.push_back(0); - packet.push_back(0x40); - - std::string protocol("DETI"); - packet.insert(packet.end(), protocol.begin(), protocol.end()); - - // Major - packet.push_back(0); - packet.push_back(0); - - // Minor - packet.push_back(0); - packet.push_back(0); - return packet; -} - -std::vector<uint8_t> TagDETI::Assemble() -{ - std::string pack_data("deti"); - std::vector<uint8_t> packet(pack_data.begin(), pack_data.end()); - packet.reserve(256); - - // Placeholder for length - packet.push_back(0); - packet.push_back(0); - packet.push_back(0); - packet.push_back(0); - - uint8_t fct = dlfc % 250; - uint8_t fcth = dlfc / 250; - - - uint16_t detiHeader = fct | (fcth << 8) | (rfudf << 13) | (ficf << 14) | (atstf << 15); - packet.push_back(detiHeader >> 8); - packet.push_back(detiHeader & 0xFF); - - uint32_t etiHeader = mnsc | (rfu << 16) | (rfa << 17) | - (fp << 19) | (mid << 22) | (stat << 24); - packet.push_back((etiHeader >> 24) & 0xFF); - packet.push_back((etiHeader >> 16) & 0xFF); - packet.push_back((etiHeader >> 8) & 0xFF); - packet.push_back(etiHeader & 0xFF); - - if (atstf) { - packet.push_back(utco); - - packet.push_back((seconds >> 24) & 0xFF); - packet.push_back((seconds >> 16) & 0xFF); - packet.push_back((seconds >> 8) & 0xFF); - packet.push_back(seconds & 0xFF); - - packet.push_back((tsta >> 16) & 0xFF); - packet.push_back((tsta >> 8) & 0xFF); - packet.push_back(tsta & 0xFF); - } - - if (ficf) { - for (size_t i = 0; i < fic_length; i++) { - packet.push_back(fic_data[i]); - } - } - - if (rfudf) { - packet.push_back((rfud >> 16) & 0xFF); - packet.push_back((rfud >> 8) & 0xFF); - packet.push_back(rfud & 0xFF); - } - - // calculate and update size - // remove TAG name and TAG length fields and convert to bits - uint32_t taglength = (packet.size() - 8) * 8; - - // write length into packet - packet[4] = (taglength >> 24) & 0xFF; - packet[5] = (taglength >> 16) & 0xFF; - packet[6] = (taglength >> 8) & 0xFF; - packet[7] = taglength & 0xFF; - - dlfc = (dlfc+1) % 5000; - - /* - std::cerr << "TagItem deti, packet.size " << packet.size() << std::endl; - std::cerr << " fic length " << fic_length << std::endl; - std::cerr << " length " << taglength / 8 << std::endl; - */ - return packet; -} - -void TagDETI::set_edi_time(const std::time_t t, int tai_utc_offset) -{ - utco = tai_utc_offset - 32; - - const std::time_t posix_timestamp_1_jan_2000 = 946684800; - - seconds = t - posix_timestamp_1_jan_2000 + utco; -} - -std::vector<uint8_t> TagESTn::Assemble() -{ - std::string pack_data("est"); - std::vector<uint8_t> packet(pack_data.begin(), pack_data.end()); - packet.reserve(mst_length*8 + 16); - - packet.push_back(id); - - // Placeholder for length - packet.push_back(0); - packet.push_back(0); - packet.push_back(0); - packet.push_back(0); - - if (tpl > 0x3F) { - throw std::runtime_error("TagESTn: invalid TPL value"); - } - - if (sad > 0x3FF) { - throw std::runtime_error("TagESTn: invalid SAD value"); - } - - if (scid > 0x3F) { - throw std::runtime_error("TagESTn: invalid SCID value"); - } - - uint32_t sstc = (scid << 18) | (sad << 8) | (tpl << 2) | rfa; - packet.push_back((sstc >> 16) & 0xFF); - packet.push_back((sstc >> 8) & 0xFF); - packet.push_back(sstc & 0xFF); - - for (size_t i = 0; i < mst_length * 8; i++) { - packet.push_back(mst_data[i]); - } - - // calculate and update size - // remove TAG name and TAG length fields and convert to bits - uint32_t taglength = (packet.size() - 8) * 8; - - // write length into packet - packet[4] = (taglength >> 24) & 0xFF; - packet[5] = (taglength >> 16) & 0xFF; - packet[6] = (taglength >> 8) & 0xFF; - packet[7] = taglength & 0xFF; - - /* - std::cerr << "TagItem ESTn, length " << packet.size() << std::endl; - std::cerr << " mst_length " << mst_length << std::endl; - */ - return packet; -} - -std::vector<uint8_t> TagStarDMY::Assemble() -{ - std::string pack_data("*dmy"); - std::vector<uint8_t> packet(pack_data.begin(), pack_data.end()); - - packet.resize(4 + 4 + length_); - - const uint32_t length_bits = length_ * 8; - - packet[4] = (length_bits >> 24) & 0xFF; - packet[5] = (length_bits >> 16) & 0xFF; - packet[6] = (length_bits >> 8) & 0xFF; - packet[7] = length_bits & 0xFF; - - // The remaining bytes in the packet are "undefined data" - - return packet; -} - -} - diff --git a/src/dabOutput/edi/TagItems.h b/src/dabOutput/edi/TagItems.h deleted file mode 100644 index b29a142..0000000 --- a/src/dabOutput/edi/TagItems.h +++ /dev/null @@ -1,149 +0,0 @@ -/* - EDI output. - This defines a few TAG items as defined ETSI TS 102 821 and - ETSI TS 102 693 - - Copyright (C) 2019 - Matthias P. Braendli, matthias.braendli@mpb.li - - http://www.opendigitalradio.org - - */ -/* - This file is part of ODR-DabMux. - - ODR-DabMux is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as - published by the Free Software Foundation, either version 3 of the - License, or (at your option) any later version. - - ODR-DabMux is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with ODR-DabMux. If not, see <http://www.gnu.org/licenses/>. - */ - -#pragma once - -#include "config.h" -#include "Eti.h" -#include <vector> -#include <chrono> -#include <string> -#include <stdint.h> - -namespace edi { - -class TagItem -{ - public: - virtual std::vector<uint8_t> Assemble() = 0; -}; - -// ETSI TS 102 693, 5.1.1 Protocol type and revision -class TagStarPTR : public TagItem -{ - public: - std::vector<uint8_t> Assemble(); -}; - -// ETSI TS 102 693, 5.1.3 DAB ETI(LI) Management (deti) -class TagDETI : public TagItem -{ - public: - std::vector<uint8_t> Assemble(); - - /***** DATA in intermediary format ****/ - // For the ETI Header: must be defined ! - uint8_t stat = 0; - uint8_t mid = 0; - uint8_t fp = 0; - uint8_t rfa = 0; - uint8_t rfu = 0; // MNSC is valid - uint16_t mnsc = 0; - uint16_t dlfc = 0; // modulo 5000 frame counter - - // ATST (optional) - bool atstf = false; // presence of atst data - - /* UTCO: Offset (in seconds) between UTC and the Seconds value. The - * value is expressed as an unsigned 8-bit quantity. As of February - * 2009, the value shall be 2 and shall change as a result of each - * modification of the number of leap seconds, as proscribed by - * International Earth Rotation and Reference Systems Service (IERS). - * - * According to Annex F - * EDI = TAI - 32s (constant) - * EDI = UTC + UTCO - * we derive - * UTCO = TAI-UTC - 32 - * where the TAI-UTC offset is given by the USNO bulletin using - * the ClockTAI module. - */ - uint8_t utco = 0; - - /* Update the EDI time. t is in UTC */ - void set_edi_time(const std::time_t t, int tai_utc_offset); - - /* The number of SI seconds since 2000-01-01 T 00:00:00 UTC as an - * unsigned 32-bit quantity. Contrary to POSIX, this value also - * counts leap seconds. - */ - uint32_t seconds = 0; - - /* TSTA: Shall be the 24 least significant bits of the Time Stamp - * (TIST) field from the STI-D(LI) Frame. The full definition for the - * STI TIST can be found in annex B of EN 300 797 [4]. The most - * significant 8 bits of the TIST field of the incoming STI-D(LI) - * frame, if required, may be carried in the RFAD field. - */ - uint32_t tsta = 0xFFFFFF; - - // the FIC (optional) - bool ficf = false; - const unsigned char* fic_data; - size_t fic_length; - - // rfu - bool rfudf = false; - uint32_t rfud = 0; - - -}; - -// ETSI TS 102 693, 5.1.5 ETI Sub-Channel Stream <n> -class TagESTn : public TagItem -{ - public: - std::vector<uint8_t> Assemble(); - - // SSTCn - uint8_t scid; - uint16_t sad; - uint8_t tpl; - uint8_t rfa; - - // Pointer to MSTn data - uint8_t* mst_data; - size_t mst_length; // STLn * 8 bytes - - uint8_t id; -}; - -// ETSI TS 102 821, 5.2.2.2 Dummy padding -class TagStarDMY : public TagItem -{ - public: - /* length is the TAG value length in bytes */ - TagStarDMY(uint32_t length) : length_(length) {} - std::vector<uint8_t> Assemble(); - - private: - uint32_t length_; -}; - -} - diff --git a/src/dabOutput/edi/TagPacket.cpp b/src/dabOutput/edi/TagPacket.cpp deleted file mode 100644 index b16dc33..0000000 --- a/src/dabOutput/edi/TagPacket.cpp +++ /dev/null @@ -1,79 +0,0 @@ -/* - Copyright (C) 2014 - Matthias P. Braendli, matthias.braendli@mpb.li - - http://www.opendigitalradio.org - - EDI output. - This defines a TAG Packet. - */ -/* - This file is part of ODR-DabMux. - - ODR-DabMux is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as - published by the Free Software Foundation, either version 3 of the - License, or (at your option) any later version. - - ODR-DabMux is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with ODR-DabMux. If not, see <http://www.gnu.org/licenses/>. - */ - -#include "config.h" -#include "Eti.h" -#include "TagPacket.h" -#include "TagItems.h" -#include <vector> -#include <iostream> -#include <string> -#include <list> -#include <stdint.h> -#include <cassert> - -namespace edi { - -TagPacket::TagPacket(unsigned int alignment) : m_alignment(alignment) -{ } - -std::vector<uint8_t> TagPacket::Assemble() -{ - std::list<TagItem*>::iterator tag; - - std::vector<uint8_t> packet; - - //std::cerr << "Assemble TAGPacket" << std::endl; - - for (tag = tag_items.begin(); tag != tag_items.end(); ++tag) { - std::vector<uint8_t> tag_data = (*tag)->Assemble(); - packet.insert(packet.end(), tag_data.begin(), tag_data.end()); - - //std::cerr << " Add TAGItem of length " << tag_data.size() << std::endl; - } - - if (m_alignment == 0) { /* no padding */ } - else if (m_alignment == 8) { - // Add padding inside TAG packet - while (packet.size() % 8 > 0) { - packet.push_back(0); // TS 102 821, 5.1, "padding shall be undefined" - } - } - else if (m_alignment > 8) { - TagStarDMY dmy(m_alignment - 8); - auto dmy_data = dmy.Assemble(); - packet.insert(packet.end(), dmy_data.begin(), dmy_data.end()); - } - else { - std::cerr << "Invalid alignment requirement " << m_alignment << - " defined in TagPacket" << std::endl; - } - - return packet; -} - -} - diff --git a/src/dabOutput/edi/TagPacket.h b/src/dabOutput/edi/TagPacket.h deleted file mode 100644 index a861cbb..0000000 --- a/src/dabOutput/edi/TagPacket.h +++ /dev/null @@ -1,56 +0,0 @@ -/* - Copyright (C) 2014 - Matthias P. Braendli, matthias.braendli@mpb.li - - http://www.opendigitalradio.org - - EDI output. - This defines a TAG Packet. - */ -/* - This file is part of ODR-DabMux. - - ODR-DabMux is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as - published by the Free Software Foundation, either version 3 of the - License, or (at your option) any later version. - - ODR-DabMux is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with ODR-DabMux. If not, see <http://www.gnu.org/licenses/>. - */ - -#pragma once - -#include "config.h" -#include "TagItems.h" -#include <vector> -#include <string> -#include <list> -#include <stdint.h> - -namespace edi { - -// A TagPacket is nothing else than a list of tag items, with an -// Assemble function that puts the bytestream together and adds -// padding such that the total length is a multiple of 8 Bytes. -// -// ETSI TS 102 821, 5.1 Tag Packet -class TagPacket -{ - public: - TagPacket(unsigned int alignment); - std::vector<uint8_t> Assemble(); - - std::list<TagItem*> tag_items; - - private: - unsigned int m_alignment; -}; - -} - diff --git a/src/dabOutput/edi/Transport.cpp b/src/dabOutput/edi/Transport.cpp deleted file mode 100644 index d99e987..0000000 --- a/src/dabOutput/edi/Transport.cpp +++ /dev/null @@ -1,182 +0,0 @@ -/* - Copyright (C) 2019 - Matthias P. Braendli, matthias.braendli@mpb.li - - http://www.opendigitalradio.org - - EDI output, - UDP and TCP transports and their configuration - - */ -/* - This file is part of ODR-DabMux. - - ODR-DabMux is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as - published by the Free Software Foundation, either version 3 of the - License, or (at your option) any later version. - - ODR-DabMux is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with ODR-DabMux. If not, see <http://www.gnu.org/licenses/>. - */ - -#include "Transport.h" -#include <iterator> - -using namespace std; - -namespace edi { - -void configuration_t::print() const -{ - etiLog.level(info) << "EDI"; - etiLog.level(info) << " verbose " << verbose; - for (auto edi_dest : destinations) { - if (auto udp_dest = dynamic_pointer_cast<edi::udp_destination_t>(edi_dest)) { - etiLog.level(info) << " UDP to " << udp_dest->dest_addr << ":" << dest_port; - if (not udp_dest->source_addr.empty()) { - etiLog.level(info) << " source " << udp_dest->source_addr; - etiLog.level(info) << " ttl " << udp_dest->ttl; - } - etiLog.level(info) << " source port " << udp_dest->source_port; - } - else if (auto tcp_dest = dynamic_pointer_cast<edi::tcp_destination_t>(edi_dest)) { - etiLog.level(info) << " TCP listening on port " << tcp_dest->listen_port; - etiLog.level(info) << " max frames queued " << tcp_dest->max_frames_queued; - } - else { - throw std::logic_error("EDI destination not implemented"); - } - } - if (interleaver_enabled()) { - etiLog.level(info) << " interleave " << latency_frames * 24 << " ms"; - } -} - - -Sender::Sender(const configuration_t& conf) : - m_conf(conf), - edi_pft(m_conf) -{ - if (m_conf.verbose) { - etiLog.log(info, "Setup EDI"); - } - - for (const auto& edi_dest : m_conf.destinations) { - if (const auto udp_dest = dynamic_pointer_cast<edi::udp_destination_t>(edi_dest)) { - auto udp_socket = std::make_shared<UdpSocket>(udp_dest->source_port); - - if (not udp_dest->source_addr.empty()) { - int err = udp_socket->setMulticastSource(udp_dest->source_addr.c_str()); - if (err) { - throw runtime_error("EDI socket set source failed!"); - } - err = udp_socket->setMulticastTTL(udp_dest->ttl); - if (err) { - throw runtime_error("EDI socket set TTL failed!"); - } - } - - udp_sockets.emplace(udp_dest.get(), udp_socket); - } - else if (auto tcp_dest = dynamic_pointer_cast<edi::tcp_destination_t>(edi_dest)) { - auto dispatcher = make_shared<TCPDataDispatcher>(tcp_dest->max_frames_queued); - dispatcher->start(tcp_dest->listen_port, "0.0.0.0"); - tcp_dispatchers.emplace(tcp_dest.get(), dispatcher); - } - else { - throw std::logic_error("EDI destination not implemented"); - } - } - - if (m_conf.interleaver_enabled()) { - edi_interleaver.SetLatency(m_conf.latency_frames); - } - - if (m_conf.dump) { - edi_debug_file.open("./edi.debug"); - } - - if (m_conf.verbose) { - etiLog.log(info, "EDI set up"); - } -} - -void Sender::write(const TagPacket& tagpacket) -{ - // Assemble into one AF Packet - edi::AFPacket af_packet = edi_afPacketiser.Assemble(tagpacket); - - if (m_conf.enable_pft) { - // Apply PFT layer to AF Packet (Reed Solomon FEC and Fragmentation) - vector<edi::PFTFragment> edi_fragments = edi_pft.Assemble(af_packet); - - if (m_conf.verbose) { - fprintf(stderr, "EDI number of PFT fragment before interleaver %zu", - edi_fragments.size()); - } - - if (m_conf.interleaver_enabled()) { - edi_fragments = edi_interleaver.Interleave(edi_fragments); - } - - // Send over ethernet - for (const auto& edi_frag : edi_fragments) { - for (auto& dest : m_conf.destinations) { - if (const auto& udp_dest = dynamic_pointer_cast<edi::udp_destination_t>(dest)) { - InetAddress addr; - addr.setAddress(udp_dest->dest_addr.c_str()); - addr.setPort(m_conf.dest_port); - - udp_sockets.at(udp_dest.get())->send(edi_frag, addr); - } - else if (auto tcp_dest = dynamic_pointer_cast<edi::tcp_destination_t>(dest)) { - tcp_dispatchers.at(tcp_dest.get())->write(edi_frag); - } - else { - throw std::logic_error("EDI destination not implemented"); - } - } - - if (m_conf.dump) { - std::ostream_iterator<uint8_t> debug_iterator(edi_debug_file); - std::copy(edi_frag.begin(), edi_frag.end(), debug_iterator); - } - } - - if (m_conf.verbose) { - fprintf(stderr, "EDI number of PFT fragments %zu", - edi_fragments.size()); - } - } - else { - // Send over ethernet - for (auto& dest : m_conf.destinations) { - if (const auto& udp_dest = dynamic_pointer_cast<edi::udp_destination_t>(dest)) { - InetAddress addr; - addr.setAddress(udp_dest->dest_addr.c_str()); - addr.setPort(m_conf.dest_port); - - udp_sockets.at(udp_dest.get())->send(af_packet, addr); - } - else if (auto tcp_dest = dynamic_pointer_cast<edi::tcp_destination_t>(dest)) { - tcp_dispatchers.at(tcp_dest.get())->write(af_packet); - } - else { - throw std::logic_error("EDI destination not implemented"); - } - } - - if (m_conf.dump) { - std::ostream_iterator<uint8_t> debug_iterator(edi_debug_file); - std::copy(af_packet.begin(), af_packet.end(), debug_iterator); - } - } -} - -} diff --git a/src/dabOutput/edi/Transport.h b/src/dabOutput/edi/Transport.h deleted file mode 100644 index 7b0a0db..0000000 --- a/src/dabOutput/edi/Transport.h +++ /dev/null @@ -1,69 +0,0 @@ -/* - Copyright (C) 2019 - Matthias P. Braendli, matthias.braendli@mpb.li - - http://www.opendigitalradio.org - - EDI output, - UDP and TCP transports and their configuration - - */ -/* - This file is part of ODR-DabMux. - - ODR-DabMux is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as - published by the Free Software Foundation, either version 3 of the - License, or (at your option) any later version. - - ODR-DabMux is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with ODR-DabMux. If not, see <http://www.gnu.org/licenses/>. - */ - -#pragma once - -#include "config.h" -#include "dabOutput/edi/Config.h" -#include "AFPacket.h" -#include "PFT.h" -#include "Interleaver.h" -#include <vector> -#include <unordered_map> -#include <stdexcept> -#include <cstdint> -#include "dabOutput/dabOutput.h" - -namespace edi { - -/** Configuration for EDI output */ - -class Sender { - public: - Sender(const configuration_t& conf); - - void write(const TagPacket& tagpacket); - - private: - configuration_t m_conf; - std::ofstream edi_debug_file; - - // The TagPacket will then be placed into an AFPacket - edi::AFPacketiser edi_afPacketiser; - - // The AF Packet will be protected with reed-solomon and split in fragments - edi::PFT edi_pft; - - // To mitigate for burst packet loss, PFT fragments can be sent out-of-order - edi::Interleaver edi_interleaver; - - std::unordered_map<udp_destination_t*, std::shared_ptr<UdpSocket>> udp_sockets; - std::unordered_map<tcp_destination_t*, std::shared_ptr<TCPDataDispatcher>> tcp_dispatchers; -}; - -} - |