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tagparser
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Add method to find available languages

This commit is contained in:
Martchus 2017-08-17 18:55:17 +02:00
parent e1ab34d8fd
commit fd138f65ca
2 changed files with 30 additions and 7 deletions
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35
mediafileinfo.cpp
View File

@ -810,7 +810,7 @@ bool MediaFileInfo::hasTracksOfType(MediaType type) const
if(m_singleTrack && m_singleTrack->mediaType() == type) { if(m_singleTrack && m_singleTrack->mediaType() == type) {
return true; return true;
} else if(m_container) { } else if(m_container) {
for(size_t i = 0, count = m_container->trackCount(); i < count; ++i) { for(size_t i = 0, count = m_container->trackCount(); i != count; ++i) {
if(m_container->track(i)->mediaType() == type) { if(m_container->track(i)->mediaType() == type) {
return true; return true;
} }
@ -831,15 +831,36 @@ bool MediaFileInfo::hasTracksOfType(MediaType type) const
*/ */
ChronoUtilities::TimeSpan MediaFileInfo::duration() const ChronoUtilities::TimeSpan MediaFileInfo::duration() const
{ {
TimeSpan res;
if(m_container) { if(m_container) {
res = m_container->duration(); return m_container->duration();
} else { } else if(m_singleTrack) {
for(const AbstractTrack *track : tracks()) { return m_singleTrack->duration();
if(track->duration() > res) { }
res = track->duration(); return TimeSpan();
}
/*!
* \brief Determines the available languages for specified media type (by default MediaType::Audio).
*
* If \a type is MediaType::Unknown, all media types are considered.
*
* parseTracks() needs to be called before. Otherwise this
* method always returns an empty set.
*
* \sa parseTracks()
*/
unordered_set<string> MediaFileInfo::availableLanguages(MediaType type) const
{
unordered_set<string> res;
if(m_container) {
for(size_t i = 0, count = m_container->trackCount(); i != count; ++i) {
const AbstractTrack *track = m_container->track(i);
if((type == MediaType::Unknown || track->mediaType() == type) && !track->language().empty() && track->language() != "und") {
res.emplace(track->language());
} }
} }
} else if(m_singleTrack && (type == MediaType::Unknown || m_singleTrack->mediaType() == type) && !m_singleTrack->language().empty() && m_singleTrack->language() != "und") {
res.emplace(m_singleTrack->language());
} }
return res; return res;
} }

2
mediafileinfo.h
View File

@ -7,6 +7,7 @@
#include "./abstractcontainer.h" #include "./abstractcontainer.h"
#include <vector> #include <vector>
#include <unordered_set>
#include <memory> #include <memory>
namespace Media { namespace Media {
@ -95,6 +96,7 @@ public:
std::vector<AbstractTrack *> tracks() const; std::vector<AbstractTrack *> tracks() const;
bool hasTracksOfType(Media::MediaType type) const; bool hasTracksOfType(Media::MediaType type) const;
ChronoUtilities::TimeSpan duration() const; ChronoUtilities::TimeSpan duration() const;
std::unordered_set<std::string> availableLanguages(Media::MediaType type = Media::MediaType::Audio) const;
bool areTracksSupported() const; bool areTracksSupported() const;
// ... the tags // ... the tags
ParsingStatus tagsParsingStatus() const; ParsingStatus tagsParsingStatus() const;