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Add HlsInputFormatOptions.offsetTimestampsByDateTime option, add InputTrack.getUnixTimeForTimestamp()

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Vanilagy
2026-06-16 16:32:53 +02:00
parent 2f0c040fcd
commit 5b4a5db1a5
16 changed files with 200 additions and 9 deletions
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test/node/hls-input.test.ts
+46
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@@ -526,11 +526,14 @@ test.concurrent('Single-value PDT', { timeout: 15_000 }, async () => {
const tracks = await input.getTracks();
expect((await Promise.all(tracks.map(x => x.isRelativeToUnixEpoch()))).every(x => x)).toBe(true);
expect((await Promise.all(tracks.map(x => x.hasUnixTimeMapping()))).every(x => x)).toBe(true);
const track = tracks[0]!;
const firstTimestamp = await track.getFirstTimestamp();
expect(firstTimestamp).toBe(Date.parse('2013-05-08T17:40:50Z') / 1000);
expect(await track.getUnixTimeForTimestamp(firstTimestamp)).toBe(firstTimestamp);
const endTimestamp = await track.computeDuration();
expect(endTimestamp).toBe(firstTimestamp + 50);
@@ -600,6 +603,49 @@ test.concurrent('PDT with bad values', { timeout: 15_000 }, async () => {
expect(await audioTrack.isRelativeToUnixEpoch()).toBe(false);
});
test.concurrent('Single-value PDT with unix offsets disabled', { timeout: 15_000 }, async () => {
using input = new Input({
source: new UrlSource('https://playertest.longtailvideo.com/adaptive/aviion/manifest.m3u8'),
formats: ALL_FORMATS,
formatOptions: {
hls: {
offsetTimestampsByDateTime: false,
},
},
});
const tracks = await input.getTracks();
expect((await Promise.all(tracks.map(x => x.isRelativeToUnixEpoch()))).every(x => x)).toBe(false);
expect((await Promise.all(tracks.map(x => x.hasUnixTimeMapping()))).every(x => x)).toBe(true);
const track = tracks[0]!;
const firstTimestamp = await track.getFirstTimestamp();
expect(firstTimestamp).toBe(0);
const endTimestamp = await track.computeDuration();
expect(endTimestamp).toBe(firstTimestamp + 50);
const firstPacket = await new EncodedPacketSink(track).getFirstPacket();
assert(firstPacket);
expect(firstPacket.timestamp).toBe(firstTimestamp); // Kinda obvious check tbh
const unixStartTime = await track.getUnixTimeForTimestamp(firstTimestamp);
expect(unixStartTime).toBe(Date.parse('2013-05-08T17:40:50Z') / 1000);
const unixEndTime = await track.getUnixTimeForTimestamp(endTimestamp);
expect(unixEndTime).toBe(Date.parse('2013-05-08T17:41:40Z') / 1000);
const unixTimeBeforeStart = await track.getUnixTimeForTimestamp(firstTimestamp - 10);
expect(unixTimeBeforeStart).toBe(Date.parse('2013-05-08T17:40:40Z') / 1000);
const unixTimeAfterEnd = await track.getUnixTimeForTimestamp(endTimestamp + 10);
expect(unixTimeAfterEnd).toBe(Date.parse('2013-05-08T17:41:50Z') / 1000);
const timestampDt = 0.001;
const unixTimeDt = (await track.getUnixTimeForTimestamp(firstTimestamp + 0.001))! - unixStartTime!;
expect(unixTimeDt).toBeCloseTo(timestampDt);
});
test.concurrent('Alternative audio only', { timeout: 15_000 }, async () => {
using input = new Input({
source: new UrlSource('https://playertest.longtailvideo.com/adaptive/alt-audio-no-video/sintel/playlist.m3u8'),