daniel-c-harvey
79bbbd4956
Processors now emit a ProcessedAudio plan with a streamed writer instead of a whole-file AudioBinary; vault writes stream via RegisterResourceStreamingAsync. Header parsing is bounded. Wave 2 (waveform/Opus) still re-reads the full file by design.
43 lines
1.8 KiB
C#
43 lines
1.8 KiB
C#
using DeepDrftContent.FileDatabase.Models;
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namespace DeepDrftContent.Processors;
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/// <summary>
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/// Dispatches an audio file to the correct format processor by extension. The single seam through
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/// which <see cref="TrackContentService"/> processes uploads, so callers depend on one abstraction
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/// rather than three concrete processors.
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/// </summary>
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public class AudioProcessorRouter
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{
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private readonly AudioProcessor _wavProcessor;
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private readonly Mp3AudioProcessor _mp3Processor;
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private readonly FlacAudioProcessor _flacProcessor;
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public AudioProcessorRouter(
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AudioProcessor wavProcessor,
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Mp3AudioProcessor mp3Processor,
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FlacAudioProcessor flacProcessor)
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{
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_wavProcessor = wavProcessor;
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_mp3Processor = mp3Processor;
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_flacProcessor = flacProcessor;
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}
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/// <summary>
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/// Processes <paramref name="filePath"/> with the processor matching its extension, returning a
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/// <see cref="ProcessedAudio"/> store plan (extracted metadata plus a streamed writer for the
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/// canonical vault bytes). Throws <see cref="ArgumentException"/> for unsupported extensions.
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/// </summary>
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public async Task<ProcessedAudio?> ProcessAudioFileAsync(string filePath, CancellationToken cancellationToken = default)
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{
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var ext = Path.GetExtension(filePath).ToLowerInvariant();
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return ext switch
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{
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".wav" => await _wavProcessor.ProcessWavFileAsync(filePath, cancellationToken),
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".mp3" => await _mp3Processor.ProcessMp3FileAsync(filePath, cancellationToken),
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".flac" => await _flacProcessor.ProcessFlacFileAsync(filePath, cancellationToken),
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_ => throw new ArgumentException($"Unsupported audio format: {ext}", nameof(filePath)),
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};
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}
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}
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