remotion-dev/remotion · error · Error

EXTINF has no value

Error message

EXTINF has no value

What it means

Thrown by parseM3uDirective() at parse-directive.ts:53 when a line matches #EXTINF but has no value. Every #EXTINF directive must specify a decimal duration in seconds and optionally a title: #EXTINF:<duration>[,<title>]. The parser splits on the first colon; if no value follows, it throws before attempting parseFloat().

Source

Thrown at packages/media-parser/src/containers/m3u/parse-directive.ts:53

		const parsed = parseM3uMediaDirective(value);

		return parsed;
	}

	if (directive === '#EXT-X-TARGETDURATION') {
		if (!value) {
			throw new Error('EXT-X-TARGETDURATION directive must have a value');
		}

		return {
			type: 'm3u-target-duration',
			duration: parseFloat(value),
		};
	}

	if (directive === '#EXTINF') {
		if (!value) {
			throw new Error('EXTINF has no value');
		}

		return {
			type: 'm3u-extinf',
			value: parseFloat(value),
		};
	}

	if (directive === '#EXT-X-ENDLIST') {
		return {
			type: 'm3u-endlist',
		};
	}

	if (directive === '#EXT-X-PLAYLIST-TYPE') {
		if (!value) {
			throw new Error('#EXT-X-PLAYLIST-TYPE. directive must have a value');
		}

View on GitHub (pinned to 78fe4bb3fd)

Solutions

  1. Ensure every #EXTINF line has a duration: #EXTINF:10.0,
  2. Check the playlist response was not truncated by the network
  3. Regenerate with a compliant packager if the encoder is producing malformed entries

Example fix

// before
#EXTINF:
segment0.ts

// after
#EXTINF:10.0,
segment0.ts
Defensive patterns

Strategy: validation

Validate before calling

// Pre-fetch and check every EXTINF has a duration
const text = await (await fetch(url)).text();
for (const line of text.split('\n')) {
  const trimmed = line.trim();
  if (trimmed.startsWith('#EXTINF')) {
    const colonIdx = trimmed.indexOf(':');
    const val = colonIdx === -1 ? '' : trimmed.slice(colonIdx + 1).split(',')[0];
    if (!val || isNaN(Number(val))) {
      throw new Error('#EXTINF is missing its duration value');
    }
  }
}

Try / catch

try {
  await parseMedia({src: url});
} catch (e) {
  if (e instanceof Error && e.message === 'EXTINF has no value') {
    // fix the malformed EXTINF line or regenerate the playlist
  }
  throw e;
}

Prevention

When it happens

Trigger: A playlist line '#EXTINF' with no colon, or '#EXTINF:' with an empty duration value — the segment duration is missing.

Common situations: Truncated media playlist where the segment entry is cut off after the directive name; hand-edited playlist with a deleted duration value; encoder producing malformed segment entries.

Related errors

AI-assisted analysis of remotion-dev/remotion@78fe4bb3fd (2026-08-12). Data as JSON: /api/errors/eddf1114ebc9fdd9. Report an issue: GitHub.