6#include "../exceptions.h"
8#include <c++utilities/conversion/stringconversion.h>
9#include <c++utilities/io/binarywriter.h>
90 for (
auto i = range.first; i != range.second; ++i) {
91 const auto &extendedField = i->second;
92 if (extendedId.matches(extendedField)) {
93 values.emplace_back(&extendedField.value());
94 for (
const auto &additionalData : extendedField.additionalData()) {
95 values.emplace_back(&additionalData.value);
111 for (
auto i = range.first; i != range.second; ++i) {
112 if (i->second.mean() == mean && i->second.name() == name) {
113 return i->second.value();
121 using namespace Mp4TagAtomIds;
189 using namespace Mp4TagAtomIds;
201 case PreDefinedGenre:
261 if (!field.value().isEmpty()) {
262 values.emplace_back(&field.value());
264 for (
const auto &
value : field.additionalData()) {
298 auto valuesIterator =
values.cbegin();
300 for (; valuesIterator !=
values.cend() && range.first != range.second;) {
301 if (!valuesIterator->isEmpty()) {
302 auto &extendedField = range.first->second;
303 if (extendedId.matches(extendedField) && (!extendedId.updateOnly || !extendedField.value().isEmpty())) {
304 extendedField.clearValue();
305 extendedField.setValue(*valuesIterator);
316 for (; valuesIterator !=
values.cend(); ++valuesIterator) {
317 if (valuesIterator->isEmpty()) {
319 std::forward_as_tuple(extendedId.mean, extendedId.name, *valuesIterator));
322 for (; range.first != range.second; ++range.first) {
323 range.first->second.clearValue();
339 for (
auto i = range.first; i != range.second; ++i) {
340 if (i->second.mean() == mean && i->second.name() == name) {
341 i->second.setValue(
value);
368 static const string context(
"parsing MP4 tag");
370 istream &stream = metaAtom.
container().stream();
371 BinaryReader &reader = metaAtom.
container().reader();
372 if (metaAtom.
totalSize() > numeric_limits<std::uint32_t>::max()) {
380 diag.emplace_back(
DiagLevel::Critical,
"Unable to parse child atoms of meta atom (stores hdlr and ilst atoms).", context);
384 int versionByte = reader.readByte();
385 if (versionByte != 0) {
388 if (reader.readUInt24BE()) {
391 if (reader.readInt32BE()) {
392 diag.emplace_back(
DiagLevel::Warning,
"Predefined 32-bit integer (hdlr atom) isn't set to 0.", context);
394 std::uint64_t handlerType = reader.readUInt64BE();
395 if ( (handlerType != 0x6d6469726170706c)) {
396 diag.emplace_back(
DiagLevel::Warning,
"Handler type (value in hdlr atom) is unknown. Trying to parse meta information anyhow.", context);
405 diag.emplace_back(
DiagLevel::Critical,
"Unable to parse child atoms of meta atom (stores hdlr and ilst atoms).", context);
408 diag.emplace_back(
DiagLevel::Warning,
"No ilst atom found (stores attached meta information).", context);
411 for (
auto *child = subAtom->
firstChild(); child; child = child->nextSibling()) {
415 tagField.
reparse(*child, diag);
416 fields().emplace(child->id(), std::move(tagField));
469 m_omitPreDefinedGenre(m_tag.fields().count(m_tag.hasField(Mp4TagAtomIds::
Genre)))
471 m_maker.reserve(m_tag.fields().size());
472 for (
auto &field : m_tag.
fields()) {
475 m_ilstSize += m_maker.emplace_back(field.second.prepareMaking(diag)).requiredSize();
476 }
catch (
const Failure &) {
480 if (m_ilstSize != 8) {
481 m_metaSize += m_ilstSize;
483 if (m_metaSize >= numeric_limits<std::uint32_t>::max()) {
484 diag.emplace_back(
DiagLevel::Critical,
"Making such big tags is not implemented.",
"making MP4 tag");
485 throw NotImplementedException();
499 BinaryWriter writer(&stream);
500 writer.writeUInt32BE(
static_cast<std::uint32_t
>(m_metaSize));
503 static const std::uint8_t hdlrData[37] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x21, 0x68, 0x64, 0x6C, 0x72, 0x00, 0x00, 0x00, 0x00, 0x00,
504 0x00, 0x00, 0x00, 0x6D, 0x64, 0x69, 0x72, 0x61, 0x70, 0x70, 0x6C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
505 stream.write(
reinterpret_cast<const char *
>(hdlrData),
sizeof(hdlrData));
506 if (m_ilstSize != 8) {
508 writer.writeUInt32BE(
static_cast<std::uint32_t
>(m_ilstSize));
511 for (
auto &maker : m_maker) {
The Diagnostics class is a container for DiagMessage.
The class inherits from std::exception and serves as base class for exceptions thrown by the elements...
bool setValue(const IdentifierType &id, const TagValue &value)
Assigns the given value to the field with the specified id.
bool hasField(KnownField field) const
Returns an indication whether the specified field is present.
typename FieldMapBasedTagTraits< Mp4Tag >::FieldType::IdentifierType IdentifierType
const TagValue & value(const IdentifierType &id) const
Returns the value of the field with the specified id.
const std::multimap< IdentifierType, FieldType, Compare > & fields() const
Returns the fields of the tag by providing direct access to the field map of the tag.
typename FieldMapBasedTagTraits< Mp4Tag >::FieldType FieldType
std::vector< const TagValue * > values(const IdentifierType &id) const
Returns the values of the field with the specified id.
bool setValues(const IdentifierType &id, const std::vector< TagValue > &values)
Assigns the given values to the field with the specified id.
std::uint64_t startOffset() const
Returns the start offset in the related stream.
std::uint32_t headerSize() const
Returns the header size of the element in byte.
ImplementationType * childById(const IdentifierType &id, Diagnostics &diag)
Returns the first child with the specified id.
ImplementationType * firstChild()
Returns the first child of the element.
std::uint64_t totalSize() const
Returns the total size of the element.
ContainerType & container()
Returns the related container.
The Mp4Atom class helps to parse MP4 files.
The Mp4TagField class is used by Mp4Tag to store the fields.
void reparse(Mp4Atom &ilstChild, Diagnostics &diag)
Parses field information from the specified Mp4Atom.
The Mp4TagMaker class helps writing MP4 tags.
void make(std::ostream &stream, Diagnostics &diag)
Saves the tag (specified when constructing the object) to the specified stream.
Implementation of TagParser::Tag for the MP4 container.
std::vector< const TagValue * > values(KnownField field) const override
Returns the values of the specified field.
const TagValue & value(KnownField value) const override
Returns the value of the specified field.
bool hasField(KnownField value) const override
Returns an indication whether the specified field is present.
bool setValue(KnownField field, const TagValue &value) override
Assigns the given value to the specified field.
IdentifierType internallyGetFieldId(KnownField field) const
Mp4TagMaker prepareMaking(Diagnostics &diag)
Prepares making.
bool setValues(KnownField field, const std::vector< TagValue > &values) override
Assigns the given values to the field with the specified id.
void parse(Mp4Atom &metaAtom, Diagnostics &diag)
Parses tag information from the specified metaAtom.
void make(std::ostream &stream, Diagnostics &diag)
Writes tag information to the specified stream.
bool canEncodingBeUsed(TagTextEncoding encoding) const override
Returns an indication whether the specified encoding can be used to provide string values for the tag...
KnownField internallyGetKnownField(const IdentifierType &id) const
void internallyGetValuesFromField(const FieldType &field, std::vector< const TagValue * > &values) const
Adds values from additional data atoms as well.
The exception that is thrown when the data to be parsed holds no parsable information (e....
This exception is thrown when the an operation is invoked that has not been implemented yet.
The TagValue class wraps values of different types.
TagDataType type() const
Returns the type of the assigned value.
static const TagValue & empty()
Returns a default-constructed TagValue where TagValue::isNull() and TagValue::isEmpty() both return t...
bool isEmpty() const
Returns whether no or an empty value is assigned.
Contains all classes and functions of the TagInfo library.
KnownField
Specifies the field.
TagTextEncoding
Specifies the text encoding.
The Mp4ExtendedFieldId specifies parameter for an extended field denoted via Mp4TagAtomIds::Extended.
bool updateOnly
Whether only existing fields should be updated but no new extended field should be created.
std::string_view mean
mean parameter, usually Mp4TagExtendedMeanIds::iTunes
Mp4ExtendedFieldId(std::string_view mean, std::string_view name, bool updateOnly=false)
Constructs a new instance with the specified parameter.
std::string_view name
name parameter