Ben Stull
19104f94cd
Per sub-project-2 plan Task 3 / spec §5.1. Parses ffprobe JSON into a Probe (streams + format); subprocess runner injectable so tests never shell out. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
35 lines
765 B
Python
35 lines
765 B
Python
"""ffprobe wrapper -> parsed streams/format. Subprocess runner is injectable."""
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from __future__ import annotations
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import json
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import subprocess
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from dataclasses import dataclass
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@dataclass
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class Probe:
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streams: list
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format: dict
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def _default_runner(args) -> str:
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return subprocess.run(args, capture_output=True, text=True, check=True).stdout
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def probe_file(path, *, runner=_default_runner) -> Probe:
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out = runner(
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[
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"ffprobe",
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"-v",
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"quiet",
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"-print_format",
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"json",
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"-show_format",
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"-show_streams",
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str(path),
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]
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)
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data = json.loads(out)
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return Probe(streams=data.get("streams", []), format=data.get("format", {}))
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