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truewhile
63 lines
3.0 KiB
TypeScript
63 lines
3.0 KiB
TypeScript
import { strict as assert } from 'node:assert'
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import { applyPendingHlsSeek, attachNativeHls, bindPendingHlsSeek, hlsManifestTimeoutMs, playbackPositionSec, playbackTimeSec } from './hlsPlayback.ts'
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class FakeVideo extends EventTarget {
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src = ''
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rejectSeek = false
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position = 0
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playCalls = 0
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get currentTime() { return this.position }
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set currentTime(value: number) {
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if (this.rejectSeek) throw new Error('metadata not ready')
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this.position = value
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}
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play() { this.playCalls += 1; return Promise.resolve() }
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}
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const video = new FakeVideo()
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const pending = { current: 420 as number | null }
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const detach = attachNativeHls(video, '/cloud/master.m3u8', pending)
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assert.equal(video.src, '/cloud/master.m3u8')
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assert.equal(video.playCalls, 1)
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assert.equal(video.currentTime, 0, 'seek must wait for the new source metadata')
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video.rejectSeek = true
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video.dispatchEvent(new Event('loadedmetadata'))
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assert.equal(pending.current, 420, 'a rejected seek must survive until canplay')
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video.rejectSeek = false
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video.dispatchEvent(new Event('canplay'))
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assert.equal(video.currentTime, 420, 'native HLS must restore the absolute cloud position')
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assert.equal(pending.current, null)
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pending.current = 600
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detach()
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video.dispatchEvent(new Event('loadedmetadata'))
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assert.equal(video.currentTime, 420, 'a detached source must not apply late metadata events')
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assert.equal(pending.current, 600)
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const msePending = { current: 120 as number | null }
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video.rejectSeek = true
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assert.equal(applyPendingHlsSeek(video, msePending), false)
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assert.equal(msePending.current, 120)
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video.rejectSeek = false
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assert.equal(applyPendingHlsSeek(video, msePending), true)
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assert.equal(msePending.current, null)
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const lateMsePending = { current: 900 as number | null }
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video.rejectSeek = true
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const detachMse = bindPendingHlsSeek(video, lateMsePending)
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assert.equal(applyPendingHlsSeek(video, lateMsePending), false)
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video.rejectSeek = false
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video.dispatchEvent(new Event('loadedmetadata'))
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assert.equal(video.currentTime, 900, 'hls.js seeks rejected during manifest parsing must retry after metadata')
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assert.equal(lateMsePending.current, null)
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detachMse()
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assert.ok(hlsManifestTimeoutMs('local', 1800) > 120_000, 'deep seeks must outlast the server readiness deadline')
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assert.equal(hlsManifestTimeoutMs('local', 0), 60_000)
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assert.equal(hlsManifestTimeoutMs('cloud', 1800), 60_000)
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assert.equal(playbackPositionSec('hls', 'cloud', 420, 600), 600, 'cloud subtitle/quality switches must not add an old local offset')
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assert.equal(playbackPositionSec('hls', 'local', 420, 60), 480, 'local subtitle switches preserve the source position')
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assert.equal(playbackPositionSec('direct', 'local', 420, 60), 60)
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assert.equal(playbackTimeSec('hls', 'cloud', 600, 640), 640, 'cloud skip/undo uses the absolute target, not target minus a former local offset')
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assert.equal(playbackTimeSec('hls', 'local', 600, 640), 40)
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assert.equal(playbackTimeSec('direct', 'local', 600, 640), 640)
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assert.equal(playbackTimeSec('hls', 'local', 600, 100), 0, 'targets before a local start clamp to zero')
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console.log('hlsPlayback.test.ts ok')
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