File indexing completed on 2024-05-05 04:51:47

 /*
     SPDX-FileCopyrightText: 2010 Michal Malek <michalm@jabster.pl>
     SPDX-FileCopyrightText: 1998-2008 Sebastian Trueg <trueg@k3b.org>
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #include "k3bmusicbrainztrackloopupjob.h"
 #include "k3btrm.h"
 #include "k3bmusicbrainz.h"
 #include "k3baudiotrack.h"
 #include "k3baudiotrackreader.h"
 
 #include <KLocalizedString>
 
 
 class K3b::MusicBrainzTrackLookupJob::Private
 {
 public:
     K3b::AudioTrack* track;
     K3b::TRM trm;
     K3b::MusicBrainz mb;
     int results;
 };
 
 
 K3b::MusicBrainzTrackLookupJob::MusicBrainzTrackLookupJob( K3b::JobHandler* hdl, QObject* parent )
     : K3b::ThreadJob( hdl, parent ),
       d( new Private() )
 {
     d->track = 0;
 }
 
 
 K3b::MusicBrainzTrackLookupJob::~MusicBrainzTrackLookupJob()
 {
     delete d;
 }
 
 
 void K3b::MusicBrainzTrackLookupJob::setAudioTrack( K3b::AudioTrack* track )
 {
     d->track = track;
 }
 
 
 int K3b::MusicBrainzTrackLookupJob::results()
 {
     return d->results;
 }
 
 
 QString K3b::MusicBrainzTrackLookupJob::title( int i ) const
 {
     return d->mb.title( i );
 }
 
 
 QString K3b::MusicBrainzTrackLookupJob::artist( int i ) const
 {
     return d->mb.artist( i );
 }
 
 
 bool K3b::MusicBrainzTrackLookupJob::run()
 {
     if ( !d->track ) {
         emit infoMessage( "Internal error: no track set. This is a bug!", MessageError );
         return false;
     }
 
     emit infoMessage( i18n("Generating fingerprint for track %1.",
                            d->track->trackNumber()), MessageInfo );
 
     AudioTrackReader trackReader( *d->track );
     d->trm.start( d->track->length() );
 
     char buffer[2352*10];
     qint64 len = 0;
     qint64 dataRead = 0;
     while( !canceled() &&
            (len = trackReader.read( buffer, sizeof(buffer) )) > 0 ) {
 
         dataRead += len;
 
         // swap data
         char buf;
         for( qint64 i = 0; i < len-1; i+=2 ) {
             buf = buffer[i];
             buffer[i] = buffer[i+1];
             buffer[i+1] = buf;
         }
 
         if( d->trm.generate( buffer, len ) ) {
             len = 0;
             break;
         }
 
         // FIXME: useless since libmusicbrainz does never need all the data
         emit percent( 100LL*dataRead/trackReader.size() );
     }
 
     if( canceled() ) {
         return false;
     }
     else if( len != 0 ||
              !d->trm.finalize() ) {
         return false;
     }
 
     emit infoMessage( i18n("Querying MusicBrainz for track %1.",
                            d->track->trackNumber()), MessageInfo );
 
     d->results = d->mb.query( d->trm.signature() );
     return( d->results > 0 );
 }
 
 #include "moc_k3bmusicbrainztrackloopupjob.cpp"