Subtitle extraction error

[revengineer 127]

Since upgrade to v4.4.3 on Windows I get a daily error for the extraction of subtitles for a particular movie. The error is listed in the dashboard. This movie has been in the library for years. Please advise how to fix. The log shows:

2020-06-06 05:00:08.135 Info SubtitleEncoder: ProcessRun 'ffmpeg-subtitle_extract' Process exited with code 1
2020-06-06 05:00:08.135 Error SubtitleEncoder: ffmpeg subtitle extraction failed for file:"C:\Users\admin\AppData\Roaming\Emby-Server\programdata\cache\temp\11e5849e-1d22-4572-9725-138a8f51afa1.txt" to C:\Users\admin\AppData\Roaming\Emby-Server\programdata\cache\subtitles\8\81cee1b8245cd0890b7198f773ce6385_637270308080613290_0_0_0_False.srt
2020-06-06 05:00:08.135 Error SubtitleEncoder: ProcessRun 'ffmpeg-subtitle_extract' Output:
	
2020-06-06 05:00:08.135 Error SubtitleEncoder: ProcessRun 'ffmpeg-subtitle_extract' Error Output:
	ffmpeg version 4.3.0-emby_2020_05_23-g8f222573e9+530 Copyright (c) 2000-2019 the FFmpeg developers and softworkz for Emby LLC
	  built with gcc 9.2.0 (Rev2, Built by MSYS2 project)
	Execution Date: 2020-06-06 05:00:08
	Input #0, tty, from 'file:C:\Users\admin\AppData\Roaming\Emby-Server\programdata\cache\temp\11e5849e-1d22-4572-9725-138a8f51afa1.txt':
	  Duration: 00:00:14.12, bitrate: 47 kb/s
	    Stream #0:0: Video: ansi, pal8, 640x400, 25 fps, 25 tbr, 25 tbn, 25 tbc
	Output #0, srt, to 'C:\Users\admin\AppData\Roaming\Emby-Server\programdata\cache\subtitles\8\81cee1b8245cd0890b7198f773ce6385_637270308080613290_0_0_0_False.srt':
	Output file #0 does not contain any stream
	
2020-06-06 05:00:08.137 Error App: Error downloading subtitles
	*** Error Report ***
	Version: 4.4.3.0
	Command line: C:\Users\admin\AppData\Roaming\Emby-Server\system\EmbyServer.dll -service
	Operating system: Microsoft Windows NT 6.2.9200.0
	64-Bit OS: True
	64-Bit Process: True
	User Interactive: True
	Runtime: file:///C:/Users/admin/AppData/Roaming/Emby-Server/system/System.Private.CoreLib.dll
	System.Environment.Version: 3.1.4
	Processor count: 4
	Program data path: C:\Users\admin\AppData\Roaming\Emby-Server\programdata
	Application directory: C:\Users\admin\AppData\Roaming\Emby-Server\system
	System.Exception: System.Exception: ffmpeg subtitle extraction failed for file:"C:\Users\admin\AppData\Roaming\Emby-Server\programdata\cache\temp\11e5849e-1d22-4572-9725-138a8f51afa1.txt" to C:\Users\admin\AppData\Roaming\Emby-Server\programdata\cache\subtitles\8\81cee1b8245cd0890b7198f773ce6385_637270308080613290_0_0_0_False.srt
	   at Emby.Server.MediaEncoding.Subtitles.SubtitleEncoder.ExtractTextSubtitleInternal(String inputPath, String inputSubtitleCodec, Int32 subtitleStreamIndex, String outputCodec, String outputPath, Int64 startTimeTicks, Int64 endTimeTicks, Boolean preserveOriginalTimestamps, CancellationToken cancellationToken)
	   at Emby.Server.MediaEncoding.Subtitles.SubtitleEncoder.ExtractTextSubtitle(ReadOnlyMemory`1 inputPath, String inputSubtitleCodec, MediaProtocol protocol, Int32 subtitleStreamIndex, String outputCodec, String outputPath, Int64 startTimeTicks, Int64 endTimeTicks, Boolean preserveOriginalTimestamps, CancellationToken cancellationToken)
	   at Emby.Server.MediaEncoding.Subtitles.SubtitleEncoder.GetReadableFile(String mediaPath, MediaProtocol mediaSourceProtocol, IDictionary`2 requestHeaders, MediaStream subtitleStream, ReadOnlyMemory`1 outputFormat, Int64 startTimeTicks, Int64 endTimeTicks, Boolean preserveOriginalTimestamps, CancellationToken cancellationToken)
	   at Emby.Server.MediaEncoding.Subtitles.SubtitleEncoder.GetSubtitles(String inputPath, MediaProtocol inputProtocol, IDictionary`2 requestHeaders, MediaStream subtitleStream, ReadOnlyMemory`1 outputFormat, Int64 startTimeTicks, Int64 endTimeTicks, Boolean preserveOriginalTimestamps, CancellationToken cancellationToken)
	   at MediaBrowser.Providers.Subtitles.SubtitleManager.GetConvertedStream(Stream downloadedSubtitleStream, SubtitleResponse response, CancellationToken cancellationToken)
	   at MediaBrowser.Providers.Subtitles.SubtitleManager.DownloadSubtitles(Video video, String subtitleId, LibraryOptions libraryOptions, CancellationToken cancellationToken)
	   at MediaBrowser.Providers.MediaInfo.SubtitleDownloader.DownloadSubtitles(Video video, LibraryOptions libraryOptions, List`1 mediaStreams, Boolean skipIfEmbeddedSubtitlesPresent, Boolean skipIfAudioTrackMatches, Boolean isHashMatch, Nullable`1 isForcedSubtitle, CultureDto language, String[] disabledSubtitleFetchers, String[] subtitleFetcherOrder, VideoContentType mediaType, CancellationToken cancellationToken)
	Source: Emby.Server.MediaEncoding
	TargetSite: Void MoveNext()

 

[neik 837]

Not really helpful for your issue but I am wondering how are extracting subs using Emby?

 

I do extract the subtitles as well but need to use mkvextract for it.

 

€dit: Or does this happen while transcoding?

Edited June 6, 2020 by neik

[revengineer 127]

Something obviously changed since v4.4.2 since the affected movie is old and the error was not previously reported.

 

I may have fixed the issue by manually downloading the subtitles file through the GUI. The most popular one had a download error which may have caused the issue. I simply selected another version. I had to rescan the library before the error stopped showing up during the subtitle download task.

[neik 837]

I think I misunderstood your initial post but for clarification:

You were not trying to extract subtitles within a mkv file, right?

[revengineer 127]

No this is an mp4 and does not contain subtitles. I also was not trying to do anything manually. I was reacting to a pesky daily error that shows up in the alerts on the dashboard.

[Luke 37178]

Can you provide a copy of the media info from the bottom of the web app detail screen? Thanks.

[revengineer 127]

See below.

[Luke 37178]

Can you please attach the complete emby server log? thanks.