harry0703/MoneyPrinterTurbo · error · SoniloError

Sonilo video proxy is empty or exceeds the 300 MB limit

Error message

Sonilo video proxy is empty or exceeds the 300 MB limit

What it means

Raised after a successful FFmpeg run when the produced proxy file is 0 bytes or larger than MAX_PROXY_BYTES (300 MB). FFmpeg exiting 0 with an empty output usually means the command produced no frames (bad filter graph), and the size cap prevents uploading absurdly large intermediates to Sonilo. The proxy is deleted before raising.

Source

Thrown at app/services/sonilo.py:196

            capture_output=True,
            text=True,
            timeout=600,
            check=False,
        )
    except subprocess.TimeoutExpired as exc:
        _remove_file(proxy_path)
        raise SoniloError("Sonilo video proxy generation timed out") from exc
    except OSError as exc:
        _remove_file(proxy_path)
        raise SoniloError("failed to run FFmpeg for Sonilo video proxy") from exc
    if result.returncode != 0:
        _remove_file(proxy_path)
        detail = (result.stderr or "").strip().replace("\n", " ")[-500:]
        raise SoniloError(f"failed to generate Sonilo video proxy: {detail}")
    proxy_size = os.path.getsize(proxy_path) if os.path.isfile(proxy_path) else 0
    if proxy_size <= 0 or proxy_size > MAX_PROXY_BYTES:
        _remove_file(proxy_path)
        raise SoniloError("Sonilo video proxy is empty or exceeds the 300 MB limit")
    logger.info(
        f"Sonilo video proxy prepared: source={video_path}, size={proxy_size} bytes"
    )
    return proxy_path


def _parse_event(raw_line: bytes) -> dict[str, Any]:
    """严格解析单条 NDJSON，禁止静默忽略截断或非对象响应。"""
    try:
        event = json.loads(raw_line.decode("utf-8"))
    except (UnicodeDecodeError, json.JSONDecodeError) as exc:
        raise SoniloError("Sonilo returned malformed streaming data") from exc
    if not isinstance(event, dict) or not isinstance(event.get("type"), str):
        raise SoniloError("Sonilo returned an invalid streaming event")
    return event


def _stream_audio(response: requests.Response, temp_audio_path: str) -> tuple[int, str]:

View on GitHub (pinned to 1f9f19c202)

Solutions

  1. If size was exceeded: increase compression in the proxy command (lower CRF or cap bitrate) so the worst-case 360-second output stays under 300 MB, or raise MAX_PROXY_BYTES if Sonilo accepts larger uploads.
  2. If the file was empty: reproduce the exact ffmpeg command manually and inspect warnings; typically the result of a bad filter or a zero-duration stream.
  3. Check free space on the task temp volume.
  4. Validate the source video with ffprobe (duration, streams) before proxy generation.

Example fix

# before (proxy can exceed 300 MB for long clips)
"-c:v", "libx264", "-crf", "18"
# after (bounded bitrate keeps worst case under cap)
"-c:v", "libx264", "-crf", "23", "-maxrate", "6M", "-bufsize", "12M"
Defensive patterns

Strategy: validation

Validate before calling

proxy_size = os.path.getsize(proxy_path) if os.path.isfile(proxy_path) else 0
if not (0 < proxy_size <= sonilo.MAX_PROXY_BYTES):
    raise ValueError(
        f"proxy {proxy_size} bytes outside (0, {sonilo.MAX_PROXY_BYTES}]"
    )

Try / catch

try:
    proxy = generate_video_proxy(video)
except SoniloError as exc:
    if "empty or exceeds" in str(exc):
        re_encode_with_stricter_settings(video)  # bounded bitrate, see exampleFix
    raise

Prevention

When it happens

Trigger: A filter or graph configuration that writes no frames (for example zero-duration output after trimming a source whose duration was misdetected); a proxy encode of a near-360-second high-bitrate clip with quality settings high enough to exceed 300 MB; a full disk where FFmpeg silently truncates but still exits 0.

Common situations: Tweaked proxy arguments (CRF, preset, bitrate) that balloon output size; a source video whose header lies about duration causing FFmpeg to emit an empty file; disk-full conditions producing a truncated file.

Related errors

AI-assisted analysis of harry0703/MoneyPrinterTurbo@1f9f19c202 (2026-08-14). Data as JSON: /api/errors/cd20a60d52c4aba1. Report an issue: GitHub.