Original launch command (public reply)

python .\screen-recording.py --config .\.arena-device-local\screen-recording-fixture.json

Original worker screen-recording-result.json

{
  "kind": "arena-screen-recording",
  "event": "summary",
  "pid": 38520,
  "pipelineControl": false,
  "output": "C:\\Users\\DELL\\AppData\\Local\\arena-recording-workspaces\\arena-dsh-workspace-c7e37020-4ac5afe2\\screen-recordings\\screen-8907220938fd4359b58c01dee63b4720.mp4",
  "command": [
    "C:\\Users\\DELL\\AppData\\Local\\Microsoft\\WinGet\\Packages\\Gyan.FFmpeg.Essentials_Microsoft.Winget.Source_8wekyb3d8bbwe\\ffmpeg-9.0.1-essentials_build\\bin\\ffmpeg.exe",
    "-hide_banner",
    "-nostdin",
    "-loglevel",
    "info",
    "-n",
    "-f",
    "gdigrab",
    "-draw_mouse",
    "0",
    "-framerate",
    "10",
    "-video_size",
    "3840x2160",
    "-offset_x",
    "0",
    "-offset_y",
    "0",
    "-i",
    "desktop",
    "-t",
    "20",
    "-an",
    "-c:v",
    "libx264",
    "-preset",
    "ultrafast",
    "-crf",
    "28",
    "-pix_fmt",
    "yuv420p",
    "-fs",
    "134217728",
    "-movflags",
    "+faststart",
    "screen-recordings\\screen-8907220938fd4359b58c01dee63b4720.mp4"
  ],
  "completed": false,
  "timedOut": false,
  "started": true,
  "mediaSaved": false,
  "deleted": false,
  "durationSeconds": 20,
  "exitCode": 4294967274,
  "stdout": "",
  "stderr": "[in#0 @ 0000020a682b7d80] Capturing whole desktop as 3840x2160x32 at (0,0)\r\n[in#0/gdigrab @ 0000020a682b7d80] Failed to capture image (error 5)\r\n[in#0/gdigrab @ 0000020a682b7d80] Could not find codec parameters for stream 0 (Video: bmp, none, 2654212 kb/s): unspecified size\r\nConsider increasing the value for the 'analyzeduration' (0) and 'probesize' (5000000) options\r\nInput #0, gdigrab, from 'desktop':\r\n  Duration: N/A, bitrate: 2654212 kb/s\r\n  Stream #0:0: Video: bmp, none, 2654212 kb/s, 10 fps, 1000k tbr, 1000k tbn\r\nOutput #0, mp4, to 'screen-recordings\\screen-8907220938fd4359b58c01dee63b4720.mp4':\r\n[out#0/mp4 @ 0000020a682b60c0] Output file does not contain any stream\r\nError opening output file screen-recordings\\screen-8907220938fd4359b58c01dee63b4720.mp4.\r\nError opening output files: Invalid argument\r\n",
  "bytes": 0
}