sgl-project/sglang · error · ValueError

MiniMax H3 video material has no positive dimensions

Error message

MiniMax H3 video material has no positive dimensions

What it means

A video stream parsed successfully but reported width <= 0 or height <= 0, so the pipeline cannot compute geometry for it.

Source

Thrown at python/sglang/multimodal_gen/runtime/pipelines_core/stages/model_specific_stages/minimax_h3/material_io.py:438

        raise ValueError("MiniMax H3 media container format is not allowed")
    video_streams = [s for s in streams if s.get("codec_type") == "video"]
    audio_streams = [s for s in streams if s.get("codec_type") == "audio"]
    if condition_type in {"video", "video_audio"} and not video_streams:
        raise ValueError("MiniMax H3 video material has no video stream")
    if condition_type in {"audio", "video_audio"} and not audio_streams:
        raise ValueError("MiniMax H3 audio material has no audio stream")

    primary_video: dict[str, Any] | None = None
    for stream in video_streams:
        try:
            width = int(stream.get("width") or 0)
            height = int(stream.get("height") or 0)
        except (TypeError, ValueError) as exc:
            raise ValueError(
                "MiniMax H3 video material has invalid dimensions"
            ) from exc
        if width <= 0 or height <= 0:
            raise ValueError("MiniMax H3 video material has no positive dimensions")
        fps = _parse_frame_rate(stream.get("avg_frame_rate")) or _parse_frame_rate(
            stream.get("r_frame_rate")
        )
        if fps <= 0:
            raise ValueError("MiniMax H3 video material has no usable frame rate")
        if primary_video is None:
            primary_video = stream

    for stream in audio_streams:
        try:
            sample_rate = int(stream.get("sample_rate") or 0)
            channels = int(stream.get("channels") or 0)
        except (TypeError, ValueError) as exc:
            raise ValueError("MiniMax H3 audio material has invalid metadata") from exc
        if sample_rate <= 0:
            raise ValueError("MiniMax H3 audio material has no usable sample rate")
        if channels <= 0:
            raise ValueError("MiniMax H3 audio material has no usable channel count")

View on GitHub (pinned to 0132848349)

Solutions

  1. Re-encode keeping only the real video track: ffmpeg -map 0:v:0 -i in.mp4 -c:v libx264 out.mp4
  2. Remove attached-picture streams from the file
  3. Validate with ffprobe that every video stream has positive width/height
Defensive patterns

Strategy: validation

Validate before calling

assert all(int(s.get("width") or 0) > 0 and int(s.get("height") or 0) > 0 for s in video_streams)

Prevention

When it happens

Trigger: Video streams with missing dimension fields (int(stream.get('width') or 0) yields 0), e.g. attached pictures, subtitle/data streams misclassified, or streams with unset dimensions.

Common situations: Album-art video streams in audio files, cover-art mjpeg streams, or corrupt encodes.

Related errors

AI-assisted analysis of sgl-project/sglang@0132848349 (2026-08-28). Data as JSON: /api/errors/c608fe3d0241f0fe. Report an issue: GitHub.