diff options
Diffstat (limited to 'src/input/File.h')
-rw-r--r-- | src/input/File.h | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/src/input/File.h b/src/input/File.h new file mode 100644 index 0000000..080d6b5 --- /dev/null +++ b/src/input/File.h @@ -0,0 +1,91 @@ +/* + Copyright (C) 2009 Her Majesty the Queen in Right of Canada (Communications + Research Center Canada) + + Copyright (C) 2016 Matthias P. Braendli + 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 <vector> +#include <array> +#include <string> +#include <stdint.h> +#include "input/inputs.h" +#include "ManagementServer.h" + +namespace Inputs { + +class FileBase : public InputBase { + public: + virtual int open(const std::string& name); + virtual int readFrame(uint8_t* buffer, size_t size) = 0; + virtual int setBitrate(int bitrate); + virtual int close(); + + /* Rewind the file + * Returns -1 on failure, 0 on success + */ + virtual int rewind(); + protected: + /* Read len bytes from the file into buf, and return + * the number of bytes read, or -1 in case of error. + */ + virtual ssize_t readFromFile(uint8_t* buf, size_t len); + + // We use unix open() instead of fopen() because + // we might want to do non-blocking I/O in the future + int m_fd = -1; +}; + +class MPEGFile : public FileBase { + public: + virtual int readFrame(uint8_t* buffer, size_t size); + virtual int setBitrate(int bitrate); + + private: + bool m_parity = false; +}; + +class RawFile : public FileBase { + public: + virtual int readFrame(uint8_t* buffer, size_t size); +}; + +class PacketFile : public FileBase { + public: + PacketFile(bool enhancedPacketMode); + virtual int readFrame(uint8_t* buffer, size_t size); + + protected: + std::array<uint8_t,96> m_packetData; + size_t m_packetLength; + + /* Enhanced packet mode enables FEC for MSC packet mode + * as described in EN 300 401 Clause 5.3.5 + */ + bool m_enhancedPacketEnabled = false; + std::array<std::array<uint8_t, 204>,12> m_enhancedPacketData; + size_t m_enhancedPacketWaiting; + size_t m_enhancedPacketLength; +}; + +}; |