Docker - 4.5.0.50 ffprobe failed

[midnigh 0]

I have a movie that I cannot play.  Investigation of the logs reveals that emby cannot probe the file and/or save the metadata.

I am using the image `emby/embyserver`.

The error in the log that I think is relevant is;

Quote

*** Error Report ***
Version: 4.5.0.50
Command line: /system/EmbyServer.dll -programdata /config -ffdetect /bin/ffdetect -ffmpeg /bin/ffmpeg -ffprobe /bin/ffprobe -restartexitcode 3
Operating system: Linux version 4.2.8 (root@U16BuildServer123) (gcc version 4.9.2 (toolchain config: [gcc-4.9.2 binutils-2.25 glibc-2.21]) ) #1 SMP Mon Sep 7 05:02:27 C
Framework: .NET Core 3.1.7
OS/Process: x64/x64
Runtime: system/System.Private.CoreLib.dll
Processor count: 4
Data path: /config
Application path: /system
System.Exception: System.Exception: ffprobe failed for file:"*.mkv" - streams and format are both null:
{
}
ffprobe version 4.3.0-emby_2020_05_23 Copyright (c) 2007-2019 the FFmpeg developers and softworkz for Emby LLC
built with gcc 8.3.0 (crosstool-NG 1.24.0)
file:/mnt/movies/*.mkv: Permission denied
at Emby.Server.MediaEncoding.Probing.MediaProbeManager.GetMediaInfoInternal(String inputPath, String primaryPath, MediaProtocol protocol, String userAgent, Boolean extractChapters, String probeSizeArgument, Boolean isAudio, Boolean forceEnableLogging, CancellationToken cancellationToken)
at MediaBrowser.Providers.MediaInfo.FFProbeVideoInfo.ProbeVideo[T](MetadataResult`1 metadataResult, MetadataRefreshOptions options, LibraryOptions libraryOptions, CancellationToken cancellationToken)
at MediaBrowser.Providers.Manager.MetadataService`2.RunCustomProvider(ICustomMetadataProvider`1 provider, MetadataResult`1 itemResult, String logName, MetadataRefreshOptions options, RefreshResult refreshResult, CancellationToken cancellationToken)
Source: Emby.Server.MediaEncoding
TargetSite: Void MoveNext()

When I attach to the shell in the container and run `ffprobe` on the file this is the results;

Quote

ffprobe version 4.3.0-emby_2020_05_23 Copyright (c) 2007-2019 the FFmpeg developers and softworkz for Emby LLC
  built with gcc 8.3.0 (crosstool-NG 1.24.0)
Input #0, matroska,webm, from '*.mkv':
  Metadata:
    encoder         : libebml v1.3.6 + libmatroska v1.4.9
    creation_time   : 2020-08-28T04:01:43.000000Z
  Duration: 01:31:54.05, start: 0.000000, bitrate: 5348 kb/s
    Stream #0:0: Video: h264 (High), yuv420p(tv, bt709, progressive), 1920x1080 [SAR 1:1 DAR 16:9], Level 40, 23.98 fps, 23.98 tbr, 1k tbn, 47.95 tbc (default)
    Metadata:
      BPS-eng         : 4962463
      DURATION-eng    : 01:31:53.967000000
      NUMBER_OF_FRAMES-eng: 132203
      NUMBER_OF_BYTES-eng: 3420357443
    Stream #0:1(eng): Audio: ac3, 48000 Hz, 5.1(side), fltp, 384 kb/s (default)
    Metadata:
      BPS-eng         : 384000
      DURATION-eng    : 01:31:54.048000000
      NUMBER_OF_FRAMES-eng: 172314
      NUMBER_OF_BYTES-eng: 264674304

 

[Luke 37053]

Hi, I think you can see the answer right here:

file:/mnt/movies/*.mkv: Permission denied

The server is being denied permission to read the contents of your video file. Have you made sure the emby system user has permissions for your files? I would suggest taking a look at our file permissions guide:

Thanks.

[midnigh 0]

Quote

ls -al
total 3601400
drwxr-xr-x         3 root     root          4096 Sep 28 00:29 .
drwxrwxrwx   60 root     root          4096 Sep 28 00:23 ..
drwxrwxrwx    2 root     root          4096 Sep 28 18:00 .@__thumb
-rw-r-----            1 root     root     3686264546 Sep 28 00:29 VIDEO.mkv
-rw-r--r--            1 root     root          1553 Sep 28 00:32 VIDEO.nfo
-rw-r--r--            1 root     root        356543 Sep 20 15:07 fanart.jpg
-rw-r--r--            1 root     root       1187417 Sep 20 15:07 poster.jpg

This is after running `chown` within the container.
When I attach to the shell, I can run `cat/touch` on any file and it appears that I have access to the files appropriately.
I have set the GID and UID environment variables appropriately.  strangely other movies with the same permissions work appropriately.

It appears that I cannot `refresh the metadata` or play the video.  I can play the video directly in VLC.  Do I need to impersonate another user when I connect to the containers shell to validate the permissions?

Quote

cat /etc/passwd
root:x:0:0:root:/root:/bin/sh
daemon:x:1:1:daemon:/usr/sbin:/bin/false
bin:x:2:2:bin:/bin:/bin/false
sys:x:3:3:sys:/dev:/bin/false
sync:x:4:100:sync:/bin:/bin/sync
mail:x:8:8:mail:/var/spool/mail:/bin/false
www-data:x:33:33:www-data:/var/www:/bin/false
operator:x:37:37:Operator:/var:/bin/false
nobody:x:65534:65534:nobody:/home:/bin/false

Steve