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feature: Phase 18.1 — derive Opus 320 + seek-index sidecar at ingest

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Background-job transcode (ffmpeg/libopus) after source store; pure C# Ogg
walker builds the 0.5s-bucketed granule→byte seek index + captures the
OpusHead/OpusTags setup header into a per-track sidecar in a new track-opus
vault. Best-effort, additive, regenerated on replace-audio.
This commit is contained in:
daniel-c-harvey
2026-06-23 06:30:10 -04:00
parent 8752fc0c98
commit 33d6f34d8a
17 changed files with 1111 additions and 0 deletions
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DeepDrftAPI/Program.cs
+8
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@@ -4,6 +4,7 @@ using DeepDrftAPI;
using DeepDrftAPI.Middleware;
using DeepDrftAPI.Models;
using DeepDrftAPI.Services;
using DeepDrftAPI.Services.Opus;
using DeepDrftData;
using DeepDrftData.Data;
using DeepDrftData.Repositories;
@@ -66,6 +67,13 @@ builder.Services
.AddScoped<ITrackService>(sp => sp.GetRequiredService<TrackManager>());
builder.Services.AddScoped<UnifiedTrackService>();
// Background Opus transcode (Phase 18.1, OQ6). One singleton is both the enqueue seam
// (IOpusTranscodeQueue, injected into the scoped UnifiedTrackService) and the hosted drain loop
// (IHostedService). It resolves OpusTranscodeService — a singleton — so no scope is captured.
builder.Services.AddSingleton<OpusTranscodeBackgroundService>();
builder.Services.AddSingleton<IOpusTranscodeQueue>(sp => sp.GetRequiredService<OpusTranscodeBackgroundService>());
builder.Services.AddHostedService(sp => sp.GetRequiredService<OpusTranscodeBackgroundService>());
// Phase 16 anonymous telemetry — append-only event logs + incremental play-counter rollup (all SQL).
// EventManager is the IEventService boundary; EventRepository owns the EF writes and the
// release-resolution + counter-bump transaction.