Comment 20 for bug 602934

I have installed SVN FFmpeg and compiled Audacity with USE_SYSTEM_FFMPEG. It
compiled (which means that all required functions are available) and Audacity
gave me the options to use FFmpeg for exporting audio, but here's the sad part:
Importing and exporting through FFmpeg failed. In the log I found this:

Export ac3 file:
Error: can't open file '/' (error 21: is a directory)
Error: FFmpeg: ERROR - Can't open output file "/home/foo/bar/baz.ac3" to write.
Error code is -2.

Import mp4 file:
Opening with libav
Error: can't read from file descriptor 20 (error 21: is a directory)
Error: av_open_input_file() failed for file /home/foo/bar/baz.mp4
Error: Importer::Import: Opening failed.

I will give a full explanation how I compiled everything in the forum:
http://forum.audacityteam.org/viewtopic.php?f=18&t=53227