180 lines
4.7 KiB
C++
180 lines
4.7 KiB
C++
#ifndef MP4TAG_H
|
|
#define MP4TAG_H
|
|
|
|
#include "./mp4tagfield.h"
|
|
|
|
#include "../fieldbasedtag.h"
|
|
|
|
namespace Media
|
|
{
|
|
|
|
class Mp4Atom;
|
|
class Mp4Tag;
|
|
|
|
struct TAG_PARSER_EXPORT Mp4ExtendedFieldId
|
|
{
|
|
Mp4ExtendedFieldId(const char *mean = nullptr, const char *name = nullptr, bool updateOnly = false);
|
|
Mp4ExtendedFieldId(KnownField field);
|
|
|
|
operator bool() const;
|
|
bool matches(const Mp4TagField &field) const;
|
|
|
|
/// \brief mean parameter, usually Mp4TagExtendedMeanIds::iTunes
|
|
const char *mean;
|
|
/// \brief name parameter
|
|
const char *name;
|
|
/// \brief Whether only existing fields should be updated but *no* new extended field should be created
|
|
bool updateOnly;
|
|
};
|
|
|
|
/*!
|
|
* \brief Constructs a new instance with the specified parameter.
|
|
*/
|
|
inline Mp4ExtendedFieldId::Mp4ExtendedFieldId(const char *mean, const char *name, bool updateOnly) :
|
|
mean(mean),
|
|
name(name),
|
|
updateOnly(updateOnly)
|
|
{}
|
|
|
|
/*!
|
|
* \brief Returns whether valid parameter are assigned.
|
|
*/
|
|
inline Mp4ExtendedFieldId::operator bool() const
|
|
{
|
|
return mean && name;
|
|
}
|
|
|
|
/*!
|
|
* \brief Returns whether the current parameter match the specified \a field.
|
|
*/
|
|
inline bool Mp4ExtendedFieldId::matches(const Mp4TagField &field) const
|
|
{
|
|
return field.mean() == mean && field.name() == name;
|
|
}
|
|
|
|
class TAG_PARSER_EXPORT Mp4TagMaker
|
|
{
|
|
friend class Mp4Tag;
|
|
|
|
public:
|
|
void make(std::ostream &stream);
|
|
const Mp4Tag &tag() const;
|
|
uint64 requiredSize() const;
|
|
|
|
private:
|
|
Mp4TagMaker(Mp4Tag &tag);
|
|
|
|
Mp4Tag &m_tag;
|
|
std::vector<Mp4TagFieldMaker> m_maker;
|
|
uint64 m_metaSize;
|
|
uint64 m_ilstSize;
|
|
bool m_omitPreDefinedGenre;
|
|
};
|
|
|
|
/*!
|
|
* \brief Returns the associated tag.
|
|
*/
|
|
inline const Mp4Tag &Mp4TagMaker::tag() const
|
|
{
|
|
return m_tag;
|
|
}
|
|
|
|
/*!
|
|
* \brief Returns the number of bytes which will be written when making the tag.
|
|
*/
|
|
inline uint64 Mp4TagMaker::requiredSize() const
|
|
{
|
|
return m_metaSize;
|
|
}
|
|
|
|
/*!
|
|
* \brief Defines traits for the TagField implementation of the Mp4Tag class.
|
|
*/
|
|
template <>
|
|
class TAG_PARSER_EXPORT FieldMapBasedTagTraits<Mp4Tag>
|
|
{
|
|
public:
|
|
typedef Mp4TagField FieldType;
|
|
typedef std::less<typename FieldType::IdentifierType> Compare;
|
|
};
|
|
|
|
class TAG_PARSER_EXPORT Mp4Tag : public FieldMapBasedTag<Mp4Tag>
|
|
{
|
|
friend class FieldMapBasedTag<Mp4Tag>;
|
|
|
|
public:
|
|
Mp4Tag();
|
|
|
|
static constexpr TagType tagType = TagType::Mp4Tag;
|
|
static constexpr const char *tagName = "MP4/iTunes tag";
|
|
static constexpr TagTextEncoding defaultTextEncoding = TagTextEncoding::Utf8;
|
|
bool canEncodingBeUsed(TagTextEncoding encoding) const;
|
|
|
|
bool supportsField(KnownField field) const;
|
|
using FieldMapBasedTag<Mp4Tag>::value;
|
|
const TagValue &value(KnownField value) const;
|
|
using FieldMapBasedTag<Mp4Tag>::values;
|
|
std::vector<const TagValue *> values(KnownField field) const;
|
|
#ifdef LEGACY_API
|
|
const TagValue &value(const std::string mean, const std::string name) const;
|
|
#endif
|
|
const TagValue &value(const std::string &mean, const std::string &name) const;
|
|
const TagValue &value(const char *mean, const char *name) const;
|
|
using FieldMapBasedTag<Mp4Tag>::setValue;
|
|
bool setValue(KnownField field, const TagValue &value);
|
|
using FieldMapBasedTag<Mp4Tag>::setValues;
|
|
bool setValues(KnownField field, const std::vector<TagValue> &values);
|
|
#ifdef LEGACY_API
|
|
bool setValue(const std::string mean, const std::string name, const TagValue &value);
|
|
#endif
|
|
bool setValue(const std::string &mean, const std::string &name, const TagValue &value);
|
|
bool setValue(const char *mean, const char *name, const TagValue &value);
|
|
using FieldMapBasedTag<Mp4Tag>::hasField;
|
|
bool hasField(KnownField value) const;
|
|
|
|
void parse(Mp4Atom &metaAtom);
|
|
Mp4TagMaker prepareMaking();
|
|
void make(std::ostream &stream);
|
|
|
|
protected:
|
|
IdentifierType internallyGetFieldId(KnownField field) const;
|
|
KnownField internallyGetKnownField(const IdentifierType &id) const;
|
|
|
|
};
|
|
|
|
/*!
|
|
* \brief Constructs a new tag.
|
|
*/
|
|
inline Mp4Tag::Mp4Tag()
|
|
{}
|
|
|
|
inline bool Mp4Tag::supportsField(KnownField field) const
|
|
{
|
|
switch(field) {
|
|
case KnownField::EncoderSettings:
|
|
return true;
|
|
default:
|
|
return FieldMapBasedTag<Mp4Tag>::supportsField(field);
|
|
}
|
|
}
|
|
|
|
/*!
|
|
* \brief Returns the value of the field with the specified \a mean and \a name attributes.
|
|
*/
|
|
inline const TagValue &Mp4Tag::value(const std::string &mean, const std::string &name) const
|
|
{
|
|
return value(mean.data(), name.data());
|
|
}
|
|
|
|
/*!
|
|
* \brief Assigns the given \a value to the field with the specified \a mean and \a name attributes.
|
|
*/
|
|
inline bool Mp4Tag::setValue(const std::string &mean, const std::string &name, const TagValue &value)
|
|
{
|
|
return setValue(mean.data(), name.data(), value);
|
|
}
|
|
|
|
}
|
|
|
|
#endif // MP4TAG_H
|