HKUDS/DeepTutor · error · ManimRenderError

Rendered video duration could not be parsed for visual revie

Error message

Rendered video duration could not be parsed for visual review.

What it means

Error "Rendered video duration could not be parsed for visual review." thrown in HKUDS/DeepTutor.

Source

Thrown at deeptutor/agents/math_animator/visual_review.py:116

            "-of",
            "default=noprint_wrappers=1:nokey=1",
            str(video_path),
        ]
        process = await asyncio.create_subprocess_exec(
            *command,
            stdout=asyncio.subprocess.PIPE,
            stderr=asyncio.subprocess.PIPE,
        )
        stdout, stderr = await process.communicate()
        if process.returncode != 0:
            raise ManimRenderError(
                "Failed to inspect rendered video duration: "
                + stderr.decode(errors="ignore").strip()
            )
        try:
            return max(float(stdout.decode().strip() or "0"), 0.0)
        except ValueError as exc:
            raise ManimRenderError(
                "Rendered video duration could not be parsed for visual review."
            ) from exc

    @staticmethod
    def _choose_timestamps(duration: float) -> list[float]:
        if duration <= 0:
            return [0.0]
        if duration < 2:
            return [0.0, min(duration / 2, duration), max(duration - 0.05, 0.0)]
        return [
            max(duration * 0.15, 0.0),
            min(duration * 0.5, duration),
            max(duration * 0.85, 0.0),
        ]

    @staticmethod
    def _path_to_attachment(path: Path) -> Attachment:
        suffix = path.suffix.lower()

View on GitHub (pinned to 3e82f13042)

When it happens

Trigger: Thrown at deeptutor/agents/math_animator/visual_review.py:116 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of HKUDS/DeepTutor@3e82f13042 (2026-08-27). Data as JSON: /api/errors/17d8866301bd3721. Report an issue: GitHub.