101 lines
2.2 KiB
C++
101 lines
2.2 KiB
C++
/*
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* Copyright (C) 2015 Emeric Poupon
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*
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* This file is part of LMS.
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*
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* LMS 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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*
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* LMS 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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*
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* You should have received a copy of the GNU General Public License
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* along with LMS. If not, see <http://www.gnu.org/licenses/>.
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*/
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/* This file contains some classes in order to get info from file using the libavconv */
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#pragma once
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extern "C"
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{
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#define __STDC_CONSTANT_MACROS
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#include <libavcodec/avcodec.h>
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#include <libavformat/avformat.h>
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#include <libavutil/error.h>
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}
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#include <vector>
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#include <string>
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#include <cstdint>
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#include <map>
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#include <chrono>
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#include <boost/optional.hpp>
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#include <boost/filesystem/path.hpp>
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#include "utils/Exception.hpp"
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namespace Av
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{
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void AvInit();
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struct Picture
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{
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std::string mimeType;
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std::vector<uint8_t> data;
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};
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struct StreamInfo
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{
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size_t id;
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std::size_t bitrate;
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};
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class AvException : public LmsException
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{
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public:
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AvException(const std::string& msg) : LmsException(msg) {}
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};
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class MediaFileException : public AvException
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{
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public:
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MediaFileException(int avError);
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};
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class MediaFile
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{
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public:
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MediaFile(const boost::filesystem::path& p);
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~MediaFile();
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// non copyable
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MediaFile(const MediaFile&) = delete;
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MediaFile& operator=(const MediaFile&) = delete;
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const boost::filesystem::path& getPath() const {return _p;};
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std::chrono::milliseconds getDuration() const;
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std::map<std::string, std::string> getMetaData(void);
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std::vector<StreamInfo> getStreamInfo() const;
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boost::optional<std::size_t> getBestStream() const; // none if failure/unknown
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bool hasAttachedPictures(void) const;
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std::vector<Picture> getAttachedPictures(std::size_t nbMaxPictures) const;
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private:
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MediaFile();
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boost::filesystem::path _p;
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AVFormatContext* _context;
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};
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} // namespace Av
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