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Earlier versions of [Self-hosted] Large video upload metadata unavailable, newest first.

Current version | Edited by Rex1d ago

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"msg": "Failed to strip attachment media metadata"}``` ### Checks- ☑ I searched existing issues.- ☑ I wrote this report in my own words, except for direct translation if needed.```

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[Self-hosted] Large video upload metadata unavailable

Summary

When uploading larger video files on self hosted instance, they get uploaded as plain files instead of an mp4 file that can be viewed in fluxer. The video in question was around 700mb. I have updated the reverse proxies as well as config limit to allow up to 1G and it upload itself finishes but not as a reproducible video. I've tried some uploads around 100/200mb and they seemed to be recognized as mp4 and play fine on the chat.

Steps to reproduce

Go into a community general chat
Upload file
select a large file (500+ mb)

Environment

Fluxer running on: Ubuntu server 26.04 2026.702.163118 Browser session: Helium Fedora 44

Logs or screenshots

Logs with filenames changed:

{
  "level": "error",
  "time": "2026-07-10T20:25:21.489Z",
  "service": "fluxer-api",
  "env": "production",
  "status": 400,
  "statusText": "Bad Request",
  "errorBody": "Bad Request",
  "body": {
    "type": "upload",
    "upload_filename": "8f3b1d6e-2a74-4c89-9e12-5a1f7d93c4b8",
    "filename": "file.mp4",
    "nsfw": "allow",
    "version": 2
  },
  "endpoint": "http://media-proxy:8080/_metadata",
  "msg": "Media proxy request failed"
}

{
  "level": "warn",
  "time": "2026-07-10T20:25:21.490Z",
  "service": "fluxer-api",
  "env": "production",
  "context": "message_attachment",
  "attachmentIndex": 0,
  "uploadFilename": "8f3b1d6e-2a74-4c89-9e12-5a1f7d93c4b8",
  "filename": "file.mp4",
  "msg": "Attachment media metadata unavailable; storing attachment as a plain file"
}

{
  "level": "error",
  "time": "2026-07-10T20:25:28.442Z",
  "service": "fluxer-api",
  "env": "production",
  "error": {
    "type": "Error",
    "message": "Command failed: ffmpeg -hide_banner -loglevel warning -i /tmp/input.mp4 -map 0 -map_metadata -1 -map_metadata:s -1 -map_metadata:c -1 -map_chapters -1 -c copy -y /tmp/output.mp4\n[NULL @ 0x5eb632fdfe40] Unable to find a suitable output format for '/tmp/output.mp4'\n/tmp/output.mp4: Invalid argument\n",
    "stack": "Error: Command failed: ffmpeg -hide_banner -loglevel warning -i /tmp/input.mp4 -map 0 -map_metadata -1 -map_metadata:s -1 -map_metadata:c -1 -map_chapters -1 -c copy -y /tmp/output.mp4\n[NULL @ 0x5eb632fdfe40] Unable to find a suitable output format for '/tmp/output.mp4'\n/tmp/output.mp4: Invalid argument\n\n    at genericNodeError (node:internal/errors:985:15)\n    at wrappedFn (node:internal/errors:539:14)\n    at ChildProcess.exithandler (node:child_process:417:12)\n    at ChildProcess.emit (node:events:509:28)\n    at maybeClose (node:internal/child_process:1124:16)\n    at ChildProcess._handle.onexit (node:internal/child_process:306:5)",
    "code": 1,
    "killed": false,
    "signal": null,
    "cmd": "ffmpeg -hide_banner -loglevel warning -i /tmp/input.mp4 -map 0 -map_metadata -1 -map_metadata:s -1 -map_metadata:c -1 -map_chapters -1 -c copy -y /tmp/output.mp4",
    "stdout": "",
    "stderr": "[NULL @ 0x5eb632fdfe40] Unable to find a suitable output format for '/tmp/output.mp4'\n/tmp/output.mp4: Invalid argument\n"
  },
  "contentType": "video/mp4",
  "sourceBucket": "fluxer-uploads",
  "sourceKey": "8f3b1d6e-2a74-4c89-9e12-5a1f7d93c4b8",
  "msg": "Failed to strip attachment media metadata"
}

Original by Rex2mo ago