630 lines
17 KiB
Go
630 lines
17 KiB
Go
package handler
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import (
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"encoding/binary"
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"facette.io/natsort"
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"fmt"
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"git.gammaspectra.live/S.O.N.G/Hibiki/panako"
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"git.gammaspectra.live/S.O.N.G/Hibiki/utilities/specializedstore"
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"git.gammaspectra.live/S.O.N.G/Kirika/audio"
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"git.gammaspectra.live/S.O.N.G/Kirika/audio/format"
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"git.gammaspectra.live/S.O.N.G/Kirika/audio/format/guess"
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"git.gammaspectra.live/S.O.N.G/Kirika/audio/replaygain"
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"git.gammaspectra.live/S.O.N.G/Kirika/hasher"
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"git.gammaspectra.live/S.O.N.G/METANOIA/metadata"
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"git.gammaspectra.live/S.O.N.G/METANOIA/utilities"
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"github.com/dhowden/tag"
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"github.com/oriser/regroup"
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"io"
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"io/ioutil"
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"log"
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"os"
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"path"
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"sort"
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"strconv"
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"strings"
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"sync"
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"sync/atomic"
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"time"
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"unicode"
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)
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type fileEntryList []fileEntry
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const separatorTrimSet = ",.-_()[]{}"
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func isSeparator(b byte) bool {
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if b == ' ' {
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return true
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}
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for i := 0; i < len(separatorTrimSet); i++ {
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if separatorTrimSet[i] == b {
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return true
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}
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}
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return false
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}
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type analyzeEntry struct {
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fileEntry
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fileHandle *os.File
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audioMetadata struct {
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sampleRate int
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channels int
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samples int
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}
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replayGain struct {
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albumGain float64
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albumPeak float64
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trackGain float64
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trackPeak float64
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}
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fileMetadata tag.Metadata
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panakoFingerprints []*panako.Fingerprint
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hasherCrc32 *hasher.Hasher
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hasherCueToolsCrc32 *hasher.Hasher
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hasherAccurateRipV1 *hasher.Hasher
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hasherAccurateRipV2 *hasher.Hasher
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}
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func (l fileEntryList) analyze(directory string, panakoInstance *panako.Instance) (entries []*analyzeEntry, fullCRC32 uint32, fullCTDBCRC32 uint32) {
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var waitGroups []*sync.WaitGroup
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printStrategy := panakoInstance.GetStrategy(specializedstore.NewMemoryStore(), audio.Linear)
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var joinedCTDBChannels []format.AnalyzerChannel
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var joinedChannels []format.AnalyzerChannel
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var preLastTotalSamplesWaitGroup sync.WaitGroup
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preLastTotalSamples := uint32(0)
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var replayGainSources []audio.Source
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for trackIndex, e := range l {
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f, err := os.Open(path.Join(directory, e.Name))
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if err != nil {
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//TODO
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log.Print(err)
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continue
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}
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var source audio.Source
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var analyzer format.AnalyzerChannel
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meta, err := tag.ReadFrom(f)
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if err != nil {
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log.Print(err)
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err = nil
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}
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f.Seek(0, io.SeekStart)
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decoders, err := guess.GetDecoders(f, f.Name())
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if err != nil { //cannot decode
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//TODO
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log.Print(err)
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f.Close()
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continue
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}
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if source, analyzer, err = guess.OpenAnalyzer(f, decoders); err != nil || source.Blocks == nil {
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analyzer = nil
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source, err = guess.Open(f, decoders)
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}
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if err != nil { //cannot decode
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//TODO
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log.Print(err)
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f.Close()
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continue
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}
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if source.Blocks == nil { //no known decoder
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//TODO
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log.Print(fmt.Errorf("no known decoder for %s", f.Name()))
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f.Close()
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continue
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}
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entry := &analyzeEntry{
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fileEntry: e,
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fileHandle: f,
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fileMetadata: meta,
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}
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sources := source.Split(3)
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var sinkWaitGroup sync.WaitGroup
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sinkWaitGroup.Add(1)
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preLastTotalSamplesWaitGroup.Add(1)
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go func(add bool) {
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defer sinkWaitGroup.Done()
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defer preLastTotalSamplesWaitGroup.Done()
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entry.audioMetadata.sampleRate = sources[0].SampleRate
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entry.audioMetadata.channels = sources[0].Channels
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var samples int
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for block := range sources[0].Blocks {
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samples += len(block) / sources[0].Channels
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}
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entry.audioMetadata.samples = samples
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if add {
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atomic.AddUint32(&preLastTotalSamples, uint32(samples))
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}
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}(trackIndex < len(l)-1)
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sinkWaitGroup.Add(1)
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go func(add bool) {
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defer sinkWaitGroup.Done()
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entry.panakoFingerprints = printStrategy.BlockChannelToFingerprints(sources[1].Blocks)
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}(trackIndex < len(l)-1)
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replayGainSources = append(replayGainSources, sources[2])
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//TODO: handle extra appended/prepended silence
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if analyzer != nil {
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if trackIndex == 0 {
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channels := analyzer.Split(4)
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joinedChannels = append(joinedChannels, channels[0])
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ctChannels := channels[1].SkipStartSamples(metadata.Int16SamplesPerSector * 10).Split(2)
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joinedCTDBChannels = append(joinedCTDBChannels, ctChannels[0])
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entry.hasherCueToolsCrc32 = hasher.NewHasher(ctChannels[1], hasher.HashtypeCrc32)
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arChannels := channels[2].SkipStartSamples(metadata.Int16SamplesPerSector*5 - 1).Split(2)
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entry.hasherAccurateRipV1 = hasher.NewHasher(arChannels[0], hasher.HashtypeAccurateRipV1Start)
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entry.hasherAccurateRipV2 = hasher.NewHasher(arChannels[1], hasher.HashtypeAccurateRipV2Start)
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entry.hasherCrc32 = hasher.NewHasher(channels[3], hasher.HashtypeCrc32)
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} else if trackIndex == len(l)-1 {
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channels := analyzer.Split(4)
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joinedChannels = append(joinedChannels, channels[0])
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ctChannels := channels[1].SkipEndSamplesMultiple(&preLastTotalSamplesWaitGroup, &preLastTotalSamples, metadata.Int16SamplesPerSector*10).Split(2)
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joinedCTDBChannels = append(joinedCTDBChannels, ctChannels[0])
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entry.hasherCueToolsCrc32 = hasher.NewHasher(ctChannels[1], hasher.HashtypeCrc32)
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arChannels := channels[2].SkipEndSamples(metadata.Int16SamplesPerSector * 5).Split(2)
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entry.hasherAccurateRipV1 = hasher.NewHasher(arChannels[0], hasher.HashtypeAccurateRipV1)
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entry.hasherAccurateRipV2 = hasher.NewHasher(arChannels[1], hasher.HashtypeAccurateRipV2)
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entry.hasherCrc32 = hasher.NewHasher(channels[3], hasher.HashtypeCrc32)
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} else {
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channels := analyzer.Split(5)
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joinedChannels = append(joinedChannels, channels[0])
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joinedCTDBChannels = append(joinedCTDBChannels, channels[1])
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entry.hasherCrc32 = hasher.NewHasher(channels[2], hasher.HashtypeCrc32)
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entry.hasherAccurateRipV1 = hasher.NewHasher(channels[3], hasher.HashtypeAccurateRipV1)
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entry.hasherAccurateRipV2 = hasher.NewHasher(channels[4], hasher.HashtypeAccurateRipV2)
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}
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waitGroups = append(waitGroups, entry.hasherCrc32.GetWaitGroup(), entry.hasherAccurateRipV1.GetWaitGroup(), entry.hasherAccurateRipV2.GetWaitGroup())
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if entry.hasherCueToolsCrc32 != nil {
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waitGroups = append(waitGroups, entry.hasherCueToolsCrc32.GetWaitGroup())
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}
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}
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waitGroups = append(waitGroups, &sinkWaitGroup)
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entries = append(entries, entry)
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}
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var rgwg sync.WaitGroup
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rgwg.Add(1)
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go func() {
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defer rgwg.Done()
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albumGain, albumPeak, trackGains, trackPeaks, err := replaygain.GetAlbumReplayGain(replayGainSources)
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if err != nil {
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return
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}
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for i, e := range entries {
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e.replayGain.albumGain = albumGain
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e.replayGain.albumPeak = albumPeak
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e.replayGain.trackGain = trackGains[i]
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e.replayGain.trackPeak = trackPeaks[i]
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}
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}()
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waitGroups = append(waitGroups, &rgwg)
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fullHasher := hasher.NewHasher(format.MergeHasherChannels(joinedChannels...), hasher.HashtypeCrc32)
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fullCTDBHasher := hasher.NewHasher(format.MergeHasherChannels(joinedCTDBChannels...), hasher.HashtypeCrc32)
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fullHasher.Wait()
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fullCTDBHasher.Wait()
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fullCRC32 = binary.BigEndian.Uint32(fullHasher.GetResult())
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fullCTDBCRC32 = binary.BigEndian.Uint32(fullCTDBHasher.GetResult())
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//Wait for all tasks
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for _, wg := range waitGroups {
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wg.Wait()
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}
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return
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}
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type fileEntry struct {
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Name string
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NormalizedSortName string
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NormalizedName string
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}
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func processAudioFiles(files []string) (result fileEntryList) {
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result = make(fileEntryList, 0, len(files))
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for _, f := range files {
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normalized := utilities.NormalizeUnicode(f)
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ext := strings.LastIndex(normalized, ".")
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for k := 0; k < ext; k++ {
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index := strings.IndexFunc(normalized[k:], unicode.IsNumber)
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if index == -1 {
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//wtf, no numbers?
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result = append(result, fileEntry{
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Name: f,
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NormalizedSortName: strings.TrimSpace(strings.TrimLeft(strings.TrimSpace(normalized[:ext]), separatorTrimSet)),
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NormalizedName: strings.TrimSpace(strings.TrimLeft(strings.TrimSpace(normalized[:ext]), separatorTrimSet)),
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})
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break
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}
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index += k
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if index == 0 || isSeparator(normalized[index-1]) { //If it's start of string or prefixed by a space
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normalized = normalized[index:ext]
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firstNotNumber := strings.IndexFunc(normalized, func(r rune) bool {
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return !unicode.IsNumber(r)
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})
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r := fileEntry{
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Name: f,
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NormalizedSortName: strings.TrimSpace(strings.TrimLeft(strings.TrimSpace(normalized), separatorTrimSet)),
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NormalizedName: strings.TrimSpace(strings.TrimLeft(strings.TrimSpace(normalized[firstNotNumber:]), separatorTrimSet)),
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}
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result = append(result, r)
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break
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}
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k = index
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}
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}
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//Sort files naturally
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sort.SliceStable(result, func(i, j int) bool {
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return natsort.Compare(result[i].NormalizedSortName, result[j].NormalizedSortName)
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})
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return
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}
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type DiscHandlerResult struct {
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TOC metadata.TOC
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CRC32 uint32
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CueToolsCRC32 uint32
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Directory string
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Tracks []DiscHandlerTrack
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CommonMetadata map[string]string
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Identifiers []metadata.Name
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Album string
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}
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type DiscHandlerTrack struct {
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FileName string
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TrackName string
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SortName string
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Fingerprints struct {
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Panako []*panako.Fingerprint
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CRC32 uint32
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CueToolsCRC32 uint32
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AccurateRipV1 uint32
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AccurateRipV2 uint32
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}
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FileMetadata struct {
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DiscNumber int
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Artists []metadata.Name
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Album string
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Year int
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TrackNumber int
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Title string
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OriginalTitle string
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Lyrics string
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EmbeddedPicture []byte
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}
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AudioMetadata struct {
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SampleRate int
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Channels int
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NumberOfFullSamples int
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Duration time.Duration
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}
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}
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func HandleDiscEntry(panakoInstance *panako.Instance, pathEntry string) *DiscHandlerResult {
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log.Printf("Handling %q", pathEntry)
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entries, err := ioutil.ReadDir(pathEntry)
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if err != nil {
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return nil
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}
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var audioFiles []string
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var imageFiles []string
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var metadataFiles []string
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var folders []string
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for _, entry := range entries {
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if !entry.IsDir() {
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ext := path.Ext(entry.Name())
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mime := utilities.GetMimeTypeFromExtension(ext)
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isAudio := mime[0:6] == "audio/"
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isAudioMetadata := mime == "text/x-log" || mime == "text/x-accurip" || mime == "text/x-cue" || mime == "text/x-toc"
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isImage := mime[0:6] == "image/"
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if isAudio {
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audioFiles = append(audioFiles, entry.Name())
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} else if isImage {
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imageFiles = append(imageFiles, entry.Name())
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} else if isAudioMetadata {
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metadataFiles = append(metadataFiles, entry.Name())
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}
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} else {
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folders = append(folders, entry.Name())
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}
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}
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if len(audioFiles) == 0 {
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return nil
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}
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sortedAudioEntries := processAudioFiles(audioFiles)
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disc := &DiscHandlerResult{
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Directory: pathEntry,
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TOC: metadata.TOC{metadata.TocPregap},
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CommonMetadata: make(map[string]string),
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}
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result, fullCRC32, fullCTDBCRC32 := sortedAudioEntries.analyze(pathEntry, panakoInstance)
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defer func() {
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for _, entry := range result {
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entry.fileHandle.Close()
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}
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}()
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disc.CRC32 = fullCRC32
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disc.CueToolsCRC32 = fullCTDBCRC32
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for _, entry := range result {
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track := DiscHandlerTrack{
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FileName: entry.Name,
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TrackName: entry.NormalizedName,
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SortName: entry.NormalizedSortName,
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}
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track.AudioMetadata.SampleRate = entry.audioMetadata.sampleRate
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track.AudioMetadata.Channels = entry.audioMetadata.channels
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track.AudioMetadata.NumberOfFullSamples = entry.audioMetadata.samples
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track.AudioMetadata.Duration = time.Duration(float64(time.Second) * float64(track.AudioMetadata.NumberOfFullSamples) / float64(track.AudioMetadata.SampleRate))
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track.Fingerprints.Panako = entry.panakoFingerprints
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disc.TOC = append(disc.TOC, disc.TOC[len(disc.TOC)-1]+track.AudioMetadata.NumberOfFullSamples/metadata.Int16SamplesPerSector)
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if entry.hasherCrc32 != nil {
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track.Fingerprints.CRC32 = binary.BigEndian.Uint32(entry.hasherCrc32.GetResult())
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track.Fingerprints.CueToolsCRC32 = track.Fingerprints.CRC32
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}
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if entry.hasherCueToolsCrc32 != nil {
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track.Fingerprints.CueToolsCRC32 = binary.BigEndian.Uint32(entry.hasherCueToolsCrc32.GetResult())
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}
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if entry.hasherAccurateRipV1 != nil {
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track.Fingerprints.AccurateRipV1 = binary.BigEndian.Uint32(entry.hasherAccurateRipV1.GetResult())
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}
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if entry.hasherAccurateRipV2 != nil {
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track.Fingerprints.AccurateRipV2 = binary.BigEndian.Uint32(entry.hasherAccurateRipV2.GetResult())
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}
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track.FileMetadata.DiscNumber, _ = entry.fileMetadata.Disc()
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track.FileMetadata.TrackNumber, _ = entry.fileMetadata.Track()
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track.FileMetadata.Year = entry.fileMetadata.Year()
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if entry.fileMetadata.Artist() != "" {
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track.FileMetadata.Artists = append(track.FileMetadata.Artists, metadata.Name{
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Kind: "artist",
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Name: entry.fileMetadata.Artist(),
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})
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}
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if entry.fileMetadata.AlbumArtist() != "" {
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track.FileMetadata.Artists = append(track.FileMetadata.Artists, metadata.Name{
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Kind: "albumartist",
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Name: entry.fileMetadata.AlbumArtist(),
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})
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}
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if entry.fileMetadata.Composer() != "" {
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track.FileMetadata.Artists = append(track.FileMetadata.Artists, metadata.Name{
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Kind: "composer",
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Name: entry.fileMetadata.Composer(),
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})
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}
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rawValues := entry.fileMetadata.Raw()
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for k, v := range rawValues {
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str, ok := v.(string)
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if !ok {
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var number int
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number, ok = v.(int)
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if ok {
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str = fmt.Sprint(number)
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}
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}
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if ok && len(str) > 0 {
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if k == "mastering" {
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track.FileMetadata.Artists = append(track.FileMetadata.Artists, metadata.Name{
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Kind: "mastering",
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Name: str,
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})
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}
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if k == "lyricist" {
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track.FileMetadata.Artists = append(track.FileMetadata.Artists, metadata.Name{
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Kind: "lyrics",
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Name: str,
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})
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}
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if k == "guitar" {
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track.FileMetadata.Artists = append(track.FileMetadata.Artists, metadata.Name{
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Kind: "performer, guitar",
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Name: str,
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})
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}
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if k == "arrange" {
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track.FileMetadata.Artists = append(track.FileMetadata.Artists, metadata.Name{
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Kind: "arranger",
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Name: str,
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})
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}
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if k == "vocal" {
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track.FileMetadata.Artists = append(track.FileMetadata.Artists, metadata.Name{
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Kind: "vocals",
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Name: str,
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})
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}
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if k == "chorus" {
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track.FileMetadata.Artists = append(track.FileMetadata.Artists, metadata.Name{
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Kind: "vocals",
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Name: str,
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})
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}
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if k == "performer" {
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track.FileMetadata.Artists = append(track.FileMetadata.Artists, metadata.Name{
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Kind: "performer",
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Name: str,
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})
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}
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if k == "originaltitle" {
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track.FileMetadata.OriginalTitle = str
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}
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if k == "unsyncedlyrics" {
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track.FileMetadata.Lyrics = str
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}
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value, exists := disc.CommonMetadata[k]
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if !exists {
|
|
disc.CommonMetadata[k] = str
|
|
} else if len(value) > 0 && value != str {
|
|
disc.CommonMetadata[k] = ""
|
|
}
|
|
}
|
|
}
|
|
|
|
for k := range disc.CommonMetadata {
|
|
_, exists := rawValues[k]
|
|
if !exists {
|
|
disc.CommonMetadata[k] = ""
|
|
}
|
|
}
|
|
|
|
track.FileMetadata.Album = entry.fileMetadata.Album()
|
|
track.FileMetadata.Title = entry.fileMetadata.Title()
|
|
|
|
if entry.fileMetadata.Picture() != nil {
|
|
track.FileMetadata.EmbeddedPicture = entry.fileMetadata.Picture().Data
|
|
}
|
|
|
|
disc.Tracks = append(disc.Tracks, track)
|
|
}
|
|
|
|
for k, v := range disc.CommonMetadata {
|
|
if v == "" {
|
|
delete(disc.CommonMetadata, k)
|
|
}
|
|
}
|
|
|
|
if catno, ok := disc.CommonMetadata["catalogid"]; ok {
|
|
for _, n := range strings.Split(catno, ";") {
|
|
disc.Identifiers = append(disc.Identifiers, metadata.Name{
|
|
Kind: "catalog",
|
|
Name: n,
|
|
})
|
|
}
|
|
}
|
|
|
|
if catno, ok := disc.CommonMetadata["catalognumber"]; ok {
|
|
for _, n := range strings.Split(catno, ";") {
|
|
disc.Identifiers = append(disc.Identifiers, metadata.Name{
|
|
Kind: "catalog",
|
|
Name: n,
|
|
})
|
|
}
|
|
}
|
|
|
|
if catno, ok := disc.CommonMetadata["labelno"]; ok {
|
|
for _, n := range strings.Split(catno, ";") {
|
|
disc.Identifiers = append(disc.Identifiers, metadata.Name{
|
|
Kind: "catalog",
|
|
Name: n,
|
|
})
|
|
}
|
|
}
|
|
|
|
album, ok := disc.CommonMetadata["TALB"] //ID3v2
|
|
if ok {
|
|
disc.Identifiers = append(disc.Identifiers, metadata.Name{
|
|
Kind: "album",
|
|
Name: album,
|
|
})
|
|
disc.Album = album
|
|
}
|
|
|
|
album, ok = disc.CommonMetadata["album"]
|
|
if ok {
|
|
disc.Identifiers = append(disc.Identifiers, metadata.Name{
|
|
Kind: "album",
|
|
Name: album,
|
|
})
|
|
disc.Album = album
|
|
}
|
|
|
|
discid, ok := disc.CommonMetadata["discid"]
|
|
if ok {
|
|
disc.Identifiers = append(disc.Identifiers, metadata.Name{
|
|
Kind: "discid",
|
|
Name: discid,
|
|
})
|
|
}
|
|
|
|
cdtoc, ok := disc.CommonMetadata["cdtoc"]
|
|
if ok {
|
|
toc := metadata.TOC{}
|
|
for _, v := range strings.Split(cdtoc, "+")[1:] {
|
|
number, err := strconv.ParseInt(v, 16, 0)
|
|
if err != nil {
|
|
toc = metadata.TOC{}
|
|
break
|
|
}
|
|
toc = append(toc, int(number))
|
|
}
|
|
if len(toc) > 0 {
|
|
toc = append(metadata.TOC{toc[len(toc)-1]}, toc[0:len(toc)-1]...)
|
|
disc.Identifiers = append(disc.Identifiers, metadata.Name{
|
|
Kind: "toc",
|
|
Name: toc.String(),
|
|
})
|
|
}
|
|
}
|
|
|
|
catalogRE := regroup.MustCompile(`(?i)[\[\(\{](?P<catno>(?:[a-z]{2,}-?[0-9][a-z0-9\-~]*)|(?:[0-9 ]{5,}))[\}\)\]]`)
|
|
m := &struct {
|
|
CatalogNumber string `regroup:"catno"`
|
|
}{}
|
|
err = catalogRE.MatchToTarget(utilities.NormalizeUnicode(disc.Directory), m)
|
|
if err == nil {
|
|
disc.Identifiers = append(disc.Identifiers, metadata.Name{
|
|
Kind: "catalog",
|
|
Name: m.CatalogNumber,
|
|
})
|
|
}
|
|
|
|
disc.TOC = append(metadata.TOC{disc.TOC[len(disc.TOC)-1]}, disc.TOC[0:len(disc.TOC)-1]...)
|
|
|
|
return disc
|
|
}
|