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

View File

@ -810,7 +810,7 @@ bool MediaFileInfo::hasTracksOfType(MediaType type) const
if(m_singleTrack && m_singleTrack->mediaType() == type) {
return true;
} 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) {
return true;
}
@ -831,15 +831,36 @@ bool MediaFileInfo::hasTracksOfType(MediaType type) const
*/
ChronoUtilities::TimeSpan MediaFileInfo::duration() const
{
TimeSpan res;
if(m_container) {
res = m_container->duration();
} else {
for(const AbstractTrack *track : tracks()) {
if(track->duration() > res) {
res = track->duration();
return m_container->duration();
} else if(m_singleTrack) {
return m_singleTrack->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;
}

View File

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