102 lines
2.9 KiB
C++
102 lines
2.9 KiB
C++
#include "./tagtarget.h"
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#include "./matroska/matroskatagid.h"
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#include <c++utilities/conversion/stringconversion.h>
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#include <list>
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using namespace std;
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using namespace ConversionUtilities;
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namespace TagParser {
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/*!
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* \brief Returns a string representation for the specified \a tagTargetLevel.
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*/
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const char *tagTargetLevelName(TagTargetLevel tagTargetLevel)
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{
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switch (tagTargetLevel) {
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case TagTargetLevel::Shot:
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return "shot";
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case TagTargetLevel::Subtrack:
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return "subtrack, part, movement, scene";
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case TagTargetLevel::Track:
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return "track, song, chapter";
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case TagTargetLevel::Part:
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return "part, session";
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case TagTargetLevel::Album:
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return "album, opera, concert, movie, episode";
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case TagTargetLevel::Edition:
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return "edition, issue, volume, opus, season, sequel";
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case TagTargetLevel::Collection:
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return "collection";
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default:
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return "";
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}
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}
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/*!
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* \class Media::TagTarget
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* \brief The TagTarget class specifies the target of a tag.
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*
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* Tags might only target a specific track, chapter, ...
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*
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* Specifying a target is currently only fully supported by Matroska.
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*
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* Since Ogg saves tags at stream level, the stream can be specified
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* by passing a TagTarget instance to OggContainer::createTag().
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* However, only the first track in the tracks() array is considered
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* and any other values are just ignored.
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*
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* In any other tag formats, the specified target is (currently)
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* completely ignored.
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*/
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/*!
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* \brief Returns the string representation of the current instance.
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* \remarks Uses the specified \a tagTargetLevel if no levelName() is assigned.
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*/
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string TagTarget::toString(TagTargetLevel tagTargetLevel) const
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{
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string levelString;
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if (level()) {
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levelString += "level ";
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levelString += numberToString(level());
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}
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const char *defaultLevelName;
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if (!levelName().empty() || *(defaultLevelName = tagTargetLevelName(tagTargetLevel))) {
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if (!levelString.empty()) {
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levelString += ' ';
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}
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levelString += '\'';
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if (!levelName().empty()) {
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levelString += levelName();
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} else {
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levelString += defaultLevelName;
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}
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levelString += '\'';
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}
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list<string> parts;
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if (levelString.empty()) {
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parts.emplace_back("undefined target");
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} else {
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parts.emplace_back(move(levelString));
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}
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for (auto v : tracks()) {
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parts.emplace_back("track " + numberToString(v));
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}
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for (auto v : chapters()) {
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parts.emplace_back("chapter " + numberToString(v));
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}
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for (auto v : editions()) {
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parts.emplace_back("edition " + numberToString(v));
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}
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for (auto v : attachments()) {
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parts.emplace_back("attachment " + numberToString(v));
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}
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return joinStrings(parts, ", ");
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}
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} // namespace TagParser
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