I want to keep the remaining buffer constant.

[brodiddev]

Have you read the Tutorials?
yes

Have you read the FAQ and checked for duplicate open issues?
yes

If the question is related to FairPlay, have you read the tutorial?

yes

What version of Shaka Player are you using?
4.8.4

What browser and OS are you using?
window chrome

Please ask your question
I want to keep the remaining buffer constant.
leftFormatted in the code below is currently staying at 5-6 seconds.

I want to keep it at 3-4 seconds, so how about adjusting liveSegmentsDelay to 2 if the remaining buffer (leftFormatted) is more than 5, and 4 if it is less than 2?

Is there a better way?

leftBuffer

	calculateBufferedInfo(videoElement) {
		const position = videoElement.currentTime;
		let bufferedInfo = { total: 0, played: 0, left: 0 };

		for (let i = 0; i < videoElement.buffered.length; i++) {
			const start = videoElement.buffered.start(i);
			const end = videoElement.buffered.end(i);
			const duration = end - start;

			if (start <= position && end > position) {
				bufferedInfo.played += Math.max(0, position - start);
				bufferedInfo.left += Math.max(0, end - position);
			} else if (start > position) {
				bufferedInfo.left += duration;
			} else {
				bufferedInfo.played += duration;
			}

			bufferedInfo.total += duration;
		}
		const leftFormatted = bufferedInfo.left.toFixed(3);
		const playedFormatted = bufferedInfo.played.toFixed(3);
		const totalFormatted = bufferedInfo.total.toFixed(3);

		return { leftFormatted, playedFormatted, totalFormatted };
	}

config

		abr: { enabled: false },
		streaming: {
			rebufferingGoal: 2,
			bufferingGoal: 10,
			bufferBehind: 30,
            }

[joeyparrish]

I want to keep the remaining buffer constant.

How strictly do you expect "constant" to be? Shaka downloads whole segments by default, so you can be at your target +/- (segment length + network delay).

[brodiddev]

Can I use liveSyncMinLatency and liveSyncMaxLatency to set the settings below to keep the remaining buffer between 2 and 2.5 seconds?

streaming: {
rebufferingGoal: 2;
bufferingGoal: 5,
useNativeHlsOnSafari: true;
lowLatencyMode: true,
liveSync: true;
liveSyncMaxLatency: 2.5,
liveSyncMinLatency: 2,
},
manifest: {
hls: {
liveSegmentsDelay: 1.5,
},
},

#EXTM3U
#EXT-X-VERSION:7
#EXT-X-TARGETDURATION:2
#EXT-X-MEDIA-SEQUENCE:19373
#EXT-X-MAP:URI="https://test.com/a69cf780-4d6c-4722-9473-d5be143585b4/brodi/pF86M5TirQgf3KmVjSWBF8QHyNWDh26McsGGQYC3eRHCk3Jt9fKp30yvBNS4ksArSjZ57EPqyUKd-J0sm5VbzA==/video/1920x1080/surplus.m4s"
#EXT-X-PROGRAM-DATE-TIME:2024-05-21T07:49:17.027Z
#EXTINF:1,
https://test.com/a69cf780-4d6c-4722-9473-d5be143585b4/brodi/pF86M5TirQgf3KmVjSWBF8QHyNWDh26McsGGQYC3eRHCk3Jt9fKp30yvBNS4ksArSjZ57EPqyUKd-J0sm5VbzA==/video/1920x1080/19373.mp4v
#EXT-X-PROGRAM-DATE-TIME:2024-05-21T07:49:18.027Z
#EXTINF:1,
https://test.com/a69cf780-4d6c-4722-9473-d5be143585b4/brodi/pF86M5TirQgf3KmVjSWBF8QHyNWDh26McsGGQYC3eRHCk3Jt9fKp30yvBNS4ksArSjZ57EPqyUKd-J0sm5VbzA==/video/1920x1080/19374.mp4v
#EXT-X-PROGRAM-DATE-TIME:2024-05-21T07:49:19.027Z
#EXTINF:1,
https://test.com/a69cf780-4d6c-4722-9473-d5be143585b4/brodi/pF86M5TirQgf3KmVjSWBF8QHyNWDh26McsGGQYC3eRHCk3Jt9fKp30yvBNS4ksArSjZ57EPqyUKd-J0sm5VbzA==/video/1920x1080/19375.mp4v
#EXT-X-PROGRAM-DATE-TIME:2024-05-21T07:49:20.027Z
#EXTINF:1,
https://test.com/a69cf780-4d6c-4722-9473-d5be143585b4/brodi/pF86M5TirQgf3KmVjSWBF8QHyNWDh26McsGGQYC3eRHCk3Jt9fKp30yvBNS4ksArSjZ57EPqyUKd-J0sm5VbzA==/video/1920x1080/19376.mp4v
#EXT-X-PROGRAM-DATE-TIME:2024-05-21T07:49:21.027Z
#EXTINF:1,
https://test.com/a69cf780-4d6c-4722-9473-d5be143585b4/brodi/pF86M5TirQgf3KmVjSWBF8QHyNWDh26McsGGQYC3eRHCk3Jt9fKp30yvBNS4ksArSjZ57EPqyUKd-J0sm5VbzA==/video/1920x1080/19377.mp4v

[joeyparrish]

Seems reasonable

[brodiddev]

many thanks :)