feat: publish av-tools 0.2.0

tests/unit/commands.test.ts

@@ -2,6 +2,7 @@ import { describe, expect, it } from 'vitest';
 import {
   buildConvertPlan,
   buildFastConcatPlan,
+  buildNormalizedConcatPlan,
   buildPreviewProxyPlan,
   buildRemuxPlan,
   buildSplitPlan,
@@ -276,6 +277,64 @@ describe('concat and transform validation', () => {
     expect(plan.expectedDurationSeconds).toBe(5);
   });
 
+  it('builds bounded chained audio/video crossfades for normalized concat', () => {
+    const preset = findBuiltInPreset('mp4-h264-balanced');
+    const sources = [
+      { ...SOURCES[0]!, durationSeconds: 4 },
+      { ...SOURCES[1]!, durationSeconds: 5 },
+      {
+        ...SOURCES[1]!,
+        id: 'three',
+        sourceIndex: 2,
+        fileName: 'three.mp4',
+        durationSeconds: 3,
+      },
+    ];
+    const plan = buildNormalizedConcatPlan({
+      jobId: 'crossfade',
+      sources,
+      targetExtension: 'mp4',
+      targetMuxer: 'mp4',
+      preset: preset!,
+      width: 640,
+      height: 360,
+      frameRate: 25,
+      sampleRate: 48_000,
+      channelLayout: 'stereo',
+      missingAudioPolicy: 'reject',
+      subtitlePolicy: 'reject',
+      crossfadeSeconds: 0.5,
+    });
+    const graph = plan.args[plan.args.indexOf('-filter_complex') + 1] ?? '';
+    expect(graph).toContain(
+      '[v0][v1]xfade=transition=fade:duration=0.5:offset=3.5[vxf1]'
+    );
+    expect(graph).toContain(
+      '[vxf1][v2]xfade=transition=fade:duration=0.5:offset=8[vout]'
+    );
+    expect(graph).toContain('[a0][a1]acrossfade=d=0.5:c1=tri:c2=tri[axf1]');
+    expect(graph).not.toContain('concat=n=3');
+    expect(plan.expectedDurationSeconds).toBe(11);
+    expect(plan.requiredCapabilities.filters).toEqual(
+      expect.arrayContaining(['xfade', 'acrossfade'])
+    );
+    expect(() =>
+      buildNormalizedConcatPlan({
+        jobId: 'too-long-crossfade',
+        sources: SOURCES,
+        targetExtension: 'mp4',
+        targetMuxer: 'mp4',
+        preset: preset!,
+        width: 640,
+        height: 360,
+        frameRate: 25,
+        missingAudioPolicy: 'reject',
+        subtitlePolicy: 'reject',
+        crossfadeSeconds: 2.5,
+      })
+    ).toThrow(/Clip 1 needs at least/iu);
+  });
+
   it('corrects crop to even bounds and calculates aspect-preserving resize', () => {
     expect(
       validateCrop({