feat: complete Phase 11.4 - comprehensive audio file import
Implemented advanced audio import capabilities: **Import Features:** - Support for WAV, MP3, OGG, FLAC, M4A, AIFF formats - Sample rate conversion using OfflineAudioContext - Stereo to mono conversion (equal channel mixing) - Normalize on import option (99% peak with 1% headroom) - Comprehensive codec detection from MIME types and extensions **API Enhancements:** - ImportOptions interface (convertToMono, targetSampleRate, normalizeOnImport) - importAudioFile() function returning buffer + metadata - AudioFileInfo with AudioMetadata (codec, duration, channels, sample rate, file size) - Enhanced decodeAudioFile() with optional import transformations **UI Components:** - ImportDialog component with import settings controls - Sample rate selector (44.1kHz - 192kHz) - Checkbox options for mono conversion and normalization - File info display (original sample rate and channels) - Updated FileUpload to show AIFF support **Technical Implementation:** - Offline resampling for quality preservation - Equal-power channel mixing for stereo-to-mono - Peak detection across all channels - Metadata extraction with codec identification Phase 11 (Export & Import) now complete! 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
152
components/dialogs/ImportDialog.tsx
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152
components/dialogs/ImportDialog.tsx
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'use client';
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import { useState } from 'react';
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import { ImportOptions } from '@/lib/audio/decoder';
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export interface ImportDialogProps {
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onImport: (options: ImportOptions) => void;
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onCancel: () => void;
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fileName: string;
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originalSampleRate?: number;
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originalChannels?: number;
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}
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export function ImportDialog({
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onImport,
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onCancel,
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fileName,
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originalSampleRate,
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originalChannels,
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}: ImportDialogProps) {
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const [options, setOptions] = useState<ImportOptions>({
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convertToMono: false,
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targetSampleRate: undefined,
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normalizeOnImport: false,
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});
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const handleImport = () => {
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onImport(options);
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};
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const sampleRateOptions = [44100, 48000, 88200, 96000, 176400, 192000];
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return (
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<div className="fixed inset-0 bg-black/50 flex items-center justify-center z-50">
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<div className="bg-white dark:bg-gray-800 rounded-lg p-6 w-full max-w-md shadow-xl">
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<h2 className="text-xl font-bold mb-4 text-gray-900 dark:text-white">
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Import Audio File
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</h2>
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<div className="mb-4">
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<div className="text-sm text-gray-600 dark:text-gray-400 mb-2">
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<strong>File:</strong> {fileName}
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</div>
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{originalSampleRate && (
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<div className="text-sm text-gray-600 dark:text-gray-400 mb-1">
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<strong>Sample Rate:</strong> {originalSampleRate} Hz
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</div>
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)}
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{originalChannels && (
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<div className="text-sm text-gray-600 dark:text-gray-400 mb-3">
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<strong>Channels:</strong> {originalChannels === 1 ? 'Mono' : originalChannels === 2 ? 'Stereo' : `${originalChannels} channels`}
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</div>
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)}
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</div>
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<div className="space-y-4">
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{/* Convert to Mono */}
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{originalChannels && originalChannels > 1 && (
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<div>
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<label className="flex items-center space-x-2">
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<input
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type="checkbox"
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checked={options.convertToMono}
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onChange={(e) => setOptions({ ...options, convertToMono: e.target.checked })}
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className="rounded border-gray-300 text-blue-600 focus:ring-blue-500"
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/>
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<span className="text-sm text-gray-700 dark:text-gray-300">
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Convert to Mono
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</span>
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</label>
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<p className="text-xs text-gray-500 dark:text-gray-400 mt-1 ml-6">
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Mix all channels equally into a single mono channel
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</p>
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</div>
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)}
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{/* Resample */}
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<div>
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<label className="flex items-center space-x-2 mb-2">
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<input
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type="checkbox"
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checked={options.targetSampleRate !== undefined}
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onChange={(e) => setOptions({
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...options,
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targetSampleRate: e.target.checked ? 48000 : undefined
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})}
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className="rounded border-gray-300 text-blue-600 focus:ring-blue-500"
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/>
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<span className="text-sm text-gray-700 dark:text-gray-300">
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Resample Audio
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</span>
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</label>
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{options.targetSampleRate !== undefined && (
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<select
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value={options.targetSampleRate}
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onChange={(e) => setOptions({
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...options,
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targetSampleRate: parseInt(e.target.value)
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})}
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className="ml-6 w-full max-w-xs px-3 py-1.5 text-sm border border-gray-300 dark:border-gray-600 rounded bg-white dark:bg-gray-700 text-gray-900 dark:text-white focus:outline-none focus:ring-2 focus:ring-blue-500"
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>
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{sampleRateOptions.map((rate) => (
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<option key={rate} value={rate}>
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{rate} Hz {rate === originalSampleRate ? '(original)' : ''}
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</option>
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))}
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</select>
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)}
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<p className="text-xs text-gray-500 dark:text-gray-400 mt-1 ml-6">
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Convert to a different sample rate (may affect quality)
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</p>
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</div>
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{/* Normalize */}
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<div>
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<label className="flex items-center space-x-2">
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<input
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type="checkbox"
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checked={options.normalizeOnImport}
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onChange={(e) => setOptions({ ...options, normalizeOnImport: e.target.checked })}
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className="rounded border-gray-300 text-blue-600 focus:ring-blue-500"
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/>
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<span className="text-sm text-gray-700 dark:text-gray-300">
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Normalize on Import
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</span>
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</label>
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<p className="text-xs text-gray-500 dark:text-gray-400 mt-1 ml-6">
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Adjust peak amplitude to 99% (1% headroom)
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</p>
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</div>
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</div>
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<div className="flex justify-end space-x-3 mt-6">
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<button
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onClick={onCancel}
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className="px-4 py-2 text-sm font-medium text-gray-700 dark:text-gray-300 bg-gray-100 dark:bg-gray-700 hover:bg-gray-200 dark:hover:bg-gray-600 rounded transition-colors"
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>
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Cancel
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</button>
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<button
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onClick={handleImport}
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className="px-4 py-2 text-sm font-medium text-white bg-blue-600 hover:bg-blue-700 rounded transition-colors"
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>
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Import
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</button>
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</div>
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</div>
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</div>
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);
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}
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