138 lines
5.2 KiB
C++
138 lines
5.2 KiB
C++
#include "./matroskachapter.h"
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#include "./ebmlelement.h"
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#include "./matroskaid.h"
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#include "../diagnostics.h"
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#include <c++utilities/conversion/stringbuilder.h>
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#include <memory>
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using namespace std;
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using namespace CppUtilities;
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namespace TagParser {
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/*!
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* \class MatroskaChapter
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* \brief The MatroskaChapter class provides an implementation of AbstractAttachment for Matroska files.
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*/
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/*!
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* \brief Constructs a new MatroskaChapter for the specified \a chapterAtomElement.
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*/
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MatroskaChapter::MatroskaChapter(EbmlElement *chapterAtomElement)
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: m_chapterAtomElement(chapterAtomElement)
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{
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}
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/*!
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* \brief Destroys the chapter.
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*/
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MatroskaChapter::~MatroskaChapter()
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{
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}
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/*!
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* \brief Parses the "ChapterAtom"-element which has been specified when constructing the object.
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* \remarks
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* - Fetches nested chapters but does not parse them.
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* - Clears all previous parsing results.
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*/
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void MatroskaChapter::internalParse(Diagnostics &diag)
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{
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// clear previous values and status
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static const string context("parsing \"ChapterAtom\"-element");
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clear();
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// iterate through children of "ChapterAtom"-element
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for (EbmlElement *chapterAtomChild = m_chapterAtomElement->firstChild(); chapterAtomChild; chapterAtomChild = chapterAtomChild->nextSibling()) {
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chapterAtomChild->parse(diag);
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switch (chapterAtomChild->id()) {
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case MatroskaIds::ChapterUID:
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m_id = chapterAtomChild->readUInteger();
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break;
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case MatroskaIds::ChapterStringUID:
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break;
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case MatroskaIds::ChapterTimeStart:
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m_startTime = TimeSpan(chapterAtomChild->readUInteger() / 100);
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break;
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case MatroskaIds::ChapterTimeEnd:
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m_endTime = TimeSpan(chapterAtomChild->readUInteger() / 100);
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break;
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case MatroskaIds::ChapterFlagHidden:
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m_hidden = chapterAtomChild->readUInteger() == 1;
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break;
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case MatroskaIds::ChapterFlagEnabled:
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m_enabled = chapterAtomChild->readUInteger() == 1;
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break;
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case MatroskaIds::ChapterSegmentUID:
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case MatroskaIds::ChapterSegmentEditionUID:
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case MatroskaIds::ChapterPhysicalEquiv:
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break;
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case MatroskaIds::ChapterTrack:
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for (EbmlElement *chapterTrackElement = chapterAtomChild->firstChild(); chapterTrackElement;
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chapterTrackElement = chapterTrackElement->nextSibling()) {
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chapterTrackElement->parse(diag);
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switch (chapterTrackElement->id()) {
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case MatroskaIds::ChapterTrack:
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m_tracks.emplace_back(chapterTrackElement->readUInteger());
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break;
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default:
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diag.emplace_back(DiagLevel::Warning,
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"\"ChapterTrack\"-element contains unknown child element \"" % chapterAtomChild->idToString() + "\". It will be ignored.",
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context);
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}
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}
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break;
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case MatroskaIds::ChapterDisplay:
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m_names.emplace_back();
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for (EbmlElement *chapterDisplayElement = chapterAtomChild->firstChild(); chapterDisplayElement;
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chapterDisplayElement = chapterDisplayElement->nextSibling()) {
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chapterDisplayElement->parse(diag);
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switch (chapterDisplayElement->id()) {
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case MatroskaIds::ChapString:
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if (m_names.back().empty()) {
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m_names.back().assign(chapterDisplayElement->readString());
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} else {
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diag.emplace_back(DiagLevel::Warning,
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"\"ChapterDisplay\"-element contains multiple \"ChapString\"-elements. Surplus occurrences will be ignored.", context);
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}
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break;
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case MatroskaIds::ChapLanguage:
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m_names.back().locale().emplace_back(chapterDisplayElement->readString(), LocaleFormat::ISO_639_2_B);
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break;
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case MatroskaIds::ChapLanguageIETF:
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m_names.back().locale().emplace_back(chapterDisplayElement->readString(), LocaleFormat::BCP_47);
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break;
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case MatroskaIds::ChapCountry:
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m_names.back().locale().emplace_back(chapterDisplayElement->readString(), LocaleFormat::DomainCountry);
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break;
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}
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}
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break;
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case MatroskaIds::ChapProcess:
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break;
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case MatroskaIds::ChapterAtom:
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m_nestedChapters.emplace_back(make_unique<MatroskaChapter>(chapterAtomChild));
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break;
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default:
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diag.emplace_back(DiagLevel::Warning,
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"\"ChapterAtom\"-element contains unknown child element \"" % chapterAtomChild->idToString() + "\". It will be ignored.", context);
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}
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}
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// "eng" is default language
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for (LocaleAwareString &name : m_names) {
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if (name.locale().empty()) {
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name.locale().emplace_back("eng"sv, LocaleFormat::ISO_639_2_B);
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}
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}
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}
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void MatroskaChapter::clear()
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{
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AbstractChapter::clear();
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m_nestedChapters.clear();
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}
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} // namespace TagParser
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