wehub-resource-sync
56 lines
2.0 KiB
C#
56 lines
2.0 KiB
C#
using System;
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using System.IO;
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using System.Threading;
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using T3.Core.Video;
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using Xunit;
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namespace T3.VideoServices.Tests;
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/// <summary>
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/// Confirms the proxy-eligibility probe is codec-agnostic: a real long-GOP H.264 is "recommended", and the
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/// all-intra ProRes proxy transcoded from it is "not needed" — proving the decision rides on measured keyframe
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/// spacing, not a codec allow-list.
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/// </summary>
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public class ProxyEligibilityTests
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{
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[Fact]
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public void LongGopSource_IsRecommended()
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{
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// test-720p.mp4 is H.264 with a ~1 s GOP (keyframe every 30 frames) — a normal inter-frame cadence.
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var result = ProxyEligibility.Evaluate(TestAssets.Video720p);
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Assert.Equal(ProxyEligibility.Recommendation.Recommended, result.Recommendation);
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Assert.True(result.KeyframeIntervalSeconds > ProxyEligibility.LongGopSeconds,
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$"expected a long GOP, measured {result.KeyframeIntervalSeconds:0.00}s ({result.Reason})");
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}
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[Fact]
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public void AllIntraProxy_IsNotNeeded()
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{
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var proxy = Path.Combine(Path.GetTempPath(), $"tixl-eligibility-{Guid.NewGuid():N}.mov");
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try
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{
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var error = ProxyTranscoder.Generate(TestAssets.Video720p, proxy, VideoExportCodec.ProRes, 0.5, null, CancellationToken.None);
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Assert.Null(error);
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var result = ProxyEligibility.Evaluate(proxy);
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Assert.Equal(ProxyEligibility.Recommendation.NotNeeded, result.Recommendation);
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Assert.True(result.KeyframeIntervalSeconds < ProxyEligibility.LongGopSeconds,
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$"all-intra should seek cheaply, measured {result.KeyframeIntervalSeconds:0.00}s ({result.Reason})");
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}
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finally
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{
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if (File.Exists(proxy))
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File.Delete(proxy);
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}
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}
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[Fact]
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public void MissingSource_IsUnknown()
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{
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var result = ProxyEligibility.Evaluate("does-not-exist.mp4");
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Assert.Equal(ProxyEligibility.Recommendation.Unknown, result.Recommendation);
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}
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}
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