Method execute

src/tools/media/ffmpeg-tools.ts:27–56

(a: z.infer<typeof ProbeArgs>)

  isReadOnly = true; isDestructive = false; argsSchema = ProbeArgs;

  async execute(a: z.infer<typeof ProbeArgs>): Promise<ToolResult> {
    const r = await runProcess('ffprobe', ['-v', 'quiet', '-print_format', 'json', '-show_format', '-show_streams', a.file], { timeoutMs: 30_000 });
    if (r.notFound) return { content: notInstalledMessage('ffprobe', FFMPEG_HINT), isError: true };
    if (!r.ok) return { content: (r.stderr || r.stdout).trim() || 'ffprobe failed', isError: true };
    try {
      const data = JSON.parse(r.stdout);
      const fmt = data.format ?? {};
      const lines: string[] = [];
      lines.push(`File: ${fmt.filename ?? a.file}`);
      lines.push(`Format: ${fmt.format_long_name ?? fmt.format_name}`);
      if (fmt.duration) lines.push(`Duration: ${Number(fmt.duration).toFixed(2)}s`);
      if (fmt.bit_rate) lines.push(`Bitrate: ${Math.round(Number(fmt.bit_rate) / 1000)} kbps`);
      if (fmt.size) lines.push(`Size: ${(Number(fmt.size) / 1048576).toFixed(2)} MB`);
      for (const s of data.streams ?? []) {
        if (s.codec_type === 'video') {
          const fps = s.r_frame_rate && s.r_frame_rate !== '0/0'
            ? (() => { const [n, d] = s.r_frame_rate.split('/').map(Number); return d ? (n / d).toFixed(2) : s.r_frame_rate; })()
            : '?';
          lines.push(`  video: ${s.codec_name} ${s.width}x${s.height} @ ${fps}fps${s.pix_fmt ? ` (${s.pix_fmt})` : ''}`);
        } else if (s.codec_type === 'audio') {
          lines.push(`  audio: ${s.codec_name} ${s.sample_rate ? s.sample_rate + 'Hz' : ''} ${s.channels ? s.channels + 'ch' : ''}`);
        } else {
          lines.push(`  ${s.codec_type}: ${s.codec_name}`);
        }
      }
      return { content: lines.join('\n') };
    } catch {
      return { content: r.stdout.slice(0, 4000) };
    }
  }
}

// ---- media_transform ----