staticnoise 0 Posted July 3, 2016 Share Posted July 3, 2016 (edited) I'm not sure if this is a known issue. I am running elementary OS, which is based on Ubuntu 14.04. After installing, attempting to play transcoded streams gave me: Video Error. There was an error playing the video. The logs told me FFmpeg had exited with error code 1. When I attempted to run the ffmpeg command myself, it turned out to be a symlink to avconv, which gave me: avconv version 9.18-6:9.18-0ubuntu0.14.04.1, Copyright © 2000-2014 the Libav developers built on Mar 16 2015 13:19:10 with gcc 4.8 (Ubuntu 4.8.2-19ubuntu1)Unrecognized option 'avoid_negative_ts'.Error splitting the argument list: Option not found I found the solution on this forum. Apparently Ubuntu 14.04 includes libav instead of the original ffmpeg, and they are not 100% compatible. I had to install the original ffmpeg from a PPA to fix the issue. I am posting it here because this likely affects all Ubuntu 14.04 installs. For reference, this was the log output: 2016-07-03 16:26:58.1187 Info App: /usr/bin/ffmpeg -fflags +genpts -i file:"/media/data/somefile.mkv" -map 0:0 -map 0:1 -codec:v:0 libx264 -force_key_frames expr:gte(t,n_forced*5) -copyts -avoid_negative_ts disabled -start_at_zero -pix_fmt yuv420p -preset superfast -crf 23 -b:v 7026752 -maxrate 7026752 -bufsize 14053504 -vsync vfr -profile:v high -level 51 -filter_complex "[0:3]format=yuva444p,scale=1920:1080,lut=u=128:v=128:y=gammaval(.3)[sub] ; [0:0] [sub] overlay" -map_metadata -1 -threads 0 -codec:a:0 libmp3lame -ac 2 -ab 128000 -af "aresample=async=1" -y "/var/lib/emby-server/transcoding-temp/42e6e4097c3e1841e03b65e72f16bab9.mkv" 2016-07-03 16:26:58.1895 Info App: FFMpeg exited with code 1 2016-07-03 16:26:59.2427 Error App: Error streaming media. The client has most likely disconnected or transcoding has failed. *** Error Report *** Version: 3.0.5973.0 Command line: /usr/lib/emby-server/bin/MediaBrowser.Server.Mono.exe -programdata /var/lib/emby-server -ffmpeg /usr/bin/ffmpeg -restartpath /usr/lib/emby-server/restart.sh Operating system: Unix 3.16.0.38 Processor count: 4 64-Bit OS: True 64-Bit Process: True Program data path: /var/lib/emby-server Mono: 4.2.1 (Stable 4.2.1.102/6dd2d0d Thu Dec 3 04:04:55 UTC 2015) Application Path: /usr/lib/emby-server/bin/MediaBrowser.Server.Mono.exe One or more errors occurred. System.AggregateException at System.Threading.Tasks.Task.WaitAll (System.Threading.Tasks.Task[] tasks, Int32 millisecondsTimeout, CancellationToken cancellationToken) <0x7f7c4df83110 + 0x005a9> in <filename unknown>:0 at System.Threading.Tasks.Task.WaitAll (System.Threading.Tasks.Task[] tasks, Int32 millisecondsTimeout) <0x7f7c4df830b0 + 0x00028> in <filename unknown>:0 at System.Threading.Tasks.Task.WaitAll (System.Threading.Tasks.Task[] tasks) <0x7f7c4df83020 + 0x00016> in <filename unknown>:0 at MediaBrowser.Api.Playback.Progressive.ProgressiveStreamWriter.WriteToInternal (System.IO.Stream responseStream) <0x4189b910 + 0x000e4> in <filename unknown>:0 InnerException: System.IO.FileNotFoundException Could not find file "/var/lib/emby-server/transcoding-temp/42e6e4097c3e1841e03b65e72f16bab9.mkv". at System.IO.FileStream..ctor (System.String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, Boolean anonymous, FileOptions options) <0x7f7c4e03f060 + 0x005cd> in <filename unknown>:0 at System.IO.FileStream..ctor (System.String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize) <0x7f7c4e03ed20 + 0x0004d> in <filename unknown>:0 at (wrapper remoting-invoke-with-check) System.IO.FileStream:.ctor (string,System.IO.FileMode,System.IO.FileAccess,System.IO.FileShare,int) at CommonIO.ManagedFileSystem.GetFileStream (System.String path, FileMode mode, FileAccess access, FileShare share, Boolean isAsync) <0x414a90c0 + 0x000bd> in <filename unknown>:0 at MediaBrowser.Api.Playback.Progressive.ProgressiveFileCopier+<StreamFile>c__async0.MoveNext () <0x4189bfe0 + 0x000d6> in <filename unknown>:0 Edited July 3, 2016 by staticnoise Link to comment Share on other sites More sharing options...
Luke 37029 Posted July 3, 2016 Share Posted July 3, 2016 Thanks for the report. I think this only affects 14.04 if I'm not mistaken, right? In other words, i think newer versions have ffmpeg available, no?. Link to comment Share on other sites More sharing options...
anderbytes 139 Posted July 4, 2016 Share Posted July 4, 2016 @@staticnoise, for your situation, I suggest you to download a static version of FFMpeg and configure FFMpeg path in latest stable Emby, inside "Playback" > "Transcoding" Some options of static: - http://johnvansickle.com/ffmpeg/ (I use this one today) - https://ffmpeg.zeranoe.com/builds/ - https://sourceforge.net/projects/ffmpeg-hi/ (Thinking about moving to this one, because of libfdk_aac , much better than regular aac) @@Luke, two questions: 1. That FFMpeg path above is used for all purposed, or only transcoding? 2. Changing to a static FFMpeg build that supports libfdk_aac would improve something in Emby? Because AAC is a very common standard, with good quality and is well known that libdfk_aac is better than regular libaac in every aspect. Link to comment Share on other sites More sharing options...
Luke 37029 Posted July 4, 2016 Share Posted July 4, 2016 I'm not sure. Try it and see if it sounds better. Link to comment Share on other sites More sharing options...
anderbytes 139 Posted July 4, 2016 Share Posted July 4, 2016 (edited) I'm not sure. Try it and see if it sounds better. I can try but I'm no sound expert... I probably won't notice the difference in quality. One of the benefits of using AAC-HC (possible with libfdk_aac) is that HC with low bitrate maintains a good quality and requires less bandwidth to be used. Also... libfdk_aac permits the use of AAC and VBR , which can't be done with libaac Edited July 4, 2016 by anderbytes Link to comment Share on other sites More sharing options...
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