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80 lines
2 KiB
C++
80 lines
2 KiB
C++
/***
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This file is part of snapcast
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Copyright (C) 2015 Johannes Pohl
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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***/
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#ifndef HEADER_MESSAGE_H
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#define HEADER_MESSAGE_H
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#include "message.h"
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namespace msg
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{
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/**
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* Codec dependend header of encoded data stream
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*/
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class Header : public BaseMessage
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{
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public:
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Header(const std::string& codecName = "", size_t size = 0) : BaseMessage(message_type::kHeader), payloadSize(size), codec(codecName)
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{
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payload = (char*)malloc(size);
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}
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virtual ~Header()
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{
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free(payload);
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}
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virtual void read(std::istream& stream)
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{
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int16_t size;
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stream.read(reinterpret_cast<char *>(&size), sizeof(int16_t));
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codec.resize(size);
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stream.read(&codec[0], size);
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stream.read(reinterpret_cast<char *>(&payloadSize), sizeof(uint32_t));
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payload = (char*)realloc(payload, payloadSize);
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stream.read(payload, payloadSize);
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}
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virtual uint32_t getSize() const
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{
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return sizeof(int16_t) + codec.size() + sizeof(uint32_t) + payloadSize;
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}
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uint32_t payloadSize;
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char* payload;
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std::string codec;
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protected:
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virtual void doserialize(std::ostream& stream) const
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{
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int16_t size(codec.size());
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stream.write(reinterpret_cast<const char *>(&size), sizeof(int16_t));
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stream.write(codec.c_str(), size);
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stream.write(reinterpret_cast<const char *>(&payloadSize), sizeof(uint32_t));
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stream.write(payload, payloadSize);
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}
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};
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}
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#endif
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