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radek-k / FFMediaToolkit

FFMediaToolkit is a cross-platform video decoder/encoder library for .NET that uses FFmpeg native libraries. It supports video frames extraction, reading stream metadata and creating videos from bitmaps in any format supported by FFmpeg.
MIT License
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FFmpegLoader.FFmpegPath on linux: Whre is this directory located/ How can I find it ? #80

Closed yagarea closed 3 years ago

yagarea commented 3 years ago

I am using arch linux. When I run whereis ffmpeg I get:

ffmpeg: /usr/bin/ffmpeg /usr/share/ffmpeg /usr/share/man/man1/ffmpeg.1.gz

but when I put any of these direcotries in to FFmpegLoader.FFmpegPath is says:

Unhandled exception. System.DllNotFoundException: Cannot load required FFmpeg libraries from /usr/share/ffmpeg/ directory.
Make sure the "Build"Prefer 32-bit" option in the project settings is turned off.
For more informations please see https://github.com/radek-k/FFMediaToolkit#setup
 ---> System.DllNotFoundException: Unable to load DLL 'avutil.56 under /usr/share/ffmpeg/': The specified module could not be found.
   at FFmpeg.AutoGen.ffmpeg.LoadLibrary(String libraryName, Boolean throwException)
   at FFmpeg.AutoGen.ffmpeg.<>c.<.cctor>b__6_0(String libraryName)
   at FFmpeg.AutoGen.ffmpeg.<>c.<.cctor>b__6_727()
   at FFmpeg.AutoGen.ffmpeg.av_version_info()
   at FFMediaToolkit.FFmpegLoader.LoadFFmpeg()
   --- End of inner exception stack trace ---
   at FFMediaToolkit.FFmpegLoader.HandleLibraryLoadError(Exception exception)
   at FFMediaToolkit.FFmpegLoader.LoadFFmpeg()
   at FFMediaToolkit.Encoding.Internal.OutputContainer.Create(String extension)
   at FFMediaToolkit.Encoding.MediaBuilder..ctor(String path, Nullable`1 format)
   at FFMediaToolkit.Encoding.MediaBuilder.CreateContainer(String path)
   at Slimulator.AnimationBuffer..ctor(String videoPath, Int32 height, Int32 width, Int32 frameRate) in /home/john/Projects/Slimulator/AnimationBuffer.cs:line 13
   at Slimulator.Simulation..ctor(Space space, String seed, String outputVideoPath) in /home/john/Projects/Slimulator/Simulation.cs:line 12
   at Slimulator.Launcher.Main(String[] args) in /home/john/Projects/Slimulator/Launcher.cs:line 8

How can I fix this ?
Thank you for help.

yagarea commented 3 years ago

Solution was to set:

FFmpegLoader.FFmpegPath = "/usr/lib/";

because arch linux has different installation location than other distributions.