avTranscoder/src/AvTranscoder/properties/util.hpp at develop · valnoel/avTranscoder · GitHub

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#ifndef _AV_TRANSCODER_MEDIA_PROPERTY_UTIL_HPP_
#define _AV_TRANSCODER_MEDIA_PROPERTY_UTIL_HPP_

#include <AvTranscoder/common.hpp>

extern "C" {
#include <libavutil/dict.h>
}

#include <vector>
#include <utility>
#include <map>
#include <string>
#include <sstream>
#include <iomanip>

namespace avtranscoder
{

/**
 * @brief PropertyVector is a vector of pair, because the order of properties matters to us.
 */
typedef std::vector<std::pair<std::string, std::string> > PropertyVector;
typedef std::map<std::string, std::string> PropertyMap;

namespace detail
{

/**
 * Variables to print properties class to the terminal.
 */
const size_t keyWidth = 32;
const std::string separator = "====================";

/**
 * If cannot access the property, get this value.
 */
const std::string propertyValueIfError = "null";

template <typename T>
void add(PropertyVector& propertyVector, const std::string& key, const T& value)
{
    std::stringstream ss;
    ss << value;
    add(propertyVector, key, ss.str());
}

template <>
void add(PropertyVector& propertyVector, const std::string& key, const size_t& value);

template <>
void add(PropertyVector& propertyVector, const std::string& key, const float& value);

template <>
void add(PropertyVector& propertyVector, const std::string& key, const std::string& value);

template <>
void add(PropertyVector& propertyVector, const std::string& key, const bool& value);

template <>
void add(PropertyVector& propertyVector, const std::string& key, const Rational& value);

/**
 * @brief Fill metadata parameter with the given AVDictionary.
 */
void AvExport fillMetadataDictionnary(AVDictionary* avdictionnary, PropertyVector& metadata);
}
}

#endif