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Merge pull request #261 from ericdaddario02/feature/replay-gain-flac

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feat(downloads): save replay gain tags to FLAC metadata
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edidealt 2026-03-01 12:15:00 +02:00 committed by GitHub
commit de3e125bac
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3 changed files with 28 additions and 1 deletions
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13
js/api.js
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@ -1254,7 +1254,18 @@ export class LosslessAPI {
message: 'Adding metadata...', message: 'Adding metadata...',
}); });
} }
blob = await addMetadataToAudio(blob, track, this, quality);
const enrichedTrack = { ...track };
if (lookup.info) {
enrichedTrack.replayGain = {
trackReplayGain: lookup.info.trackReplayGain,
trackPeakAmplitude: lookup.info.trackPeakAmplitude,
albumReplayGain: lookup.info.albumReplayGain,
albumPeakAmplitude: lookup.info.albumPeakAmplitude,
};
}
blob = await addMetadataToAudio(blob, enrichedTrack, this, quality);
} }
// Detect actual format and fix filename extension if needed // Detect actual format and fix filename extension if needed

9
js/downloads.js
View file

@ -323,6 +323,15 @@ async function downloadTrackBlob(track, quality, api, lyricsManager = null, sign
} }
} }
if (lookup.info) {
enrichedTrack.replayGain = {
trackReplayGain: lookup.info.trackReplayGain,
trackPeakAmplitude: lookup.info.trackPeakAmplitude,
albumReplayGain: lookup.info.albumReplayGain,
albumPeakAmplitude: lookup.info.albumPeakAmplitude,
};
}
// Handle DASH streams (blob URLs) // Handle DASH streams (blob URLs)
let blob; let blob;
if (streamUrl.startsWith('blob:')) { if (streamUrl.startsWith('blob:')) {

7
js/metadata.js
View file

@ -587,6 +587,13 @@ function createVorbisCommentBlock(track) {
if (track.album?.numberOfTracks) { if (track.album?.numberOfTracks) {
comments.push(['TRACKTOTAL', String(track.album.numberOfTracks)]); comments.push(['TRACKTOTAL', String(track.album.numberOfTracks)]);
} }
if (track.replayGain) {
const { albumReplayGain, albumPeakAmplitude, trackReplayGain, trackPeakAmplitude } = track.replayGain;
if (albumReplayGain) comments.push(['REPLAYGAIN_ALBUM_GAIN', String(albumReplayGain)]);
if (albumPeakAmplitude) comments.push(['REPLAYGAIN_ALBUM_PEAK', String(albumPeakAmplitude)]);
if (trackReplayGain) comments.push(['REPLAYGAIN_TRACK_GAIN', String(trackReplayGain)]);
if (trackPeakAmplitude) comments.push(['REPLAYGAIN_TRACK_PEAK', String(trackPeakAmplitude)]);
}
const releaseDateStr = const releaseDateStr =
track.album?.releaseDate || (track.streamStartDate ? track.streamStartDate.split('T')[0] : ''); track.album?.releaseDate || (track.streamStartDate ? track.streamStartDate.split('T')[0] : '');