Audacity Forum

Posted: **Sun Nov 05, 2017 9:56 am**

Hi all,

I compiled Audacity on my Linux Mint Debian Edition 2, it runs but it cannot load the ffmpeg libraries:

10:51:36: Audacity 2.2.0
10:51:39: Trying to load FFmpeg libraries...
10:51:39: mLibAVFormatPath ('/usr/lib/x86_64-linux-gnu/libavformat.so.56') is not empty. Loading from it.
10:51:39: Checking for monolithic avformat from '/usr/lib/x86_64-linux-gnu/libavformat.so.56'.
10:51:39: avformat not monolithic
10:51:39: Loading avutil from '/usr/lib/x86_64-linux-gnu/libavutil.so.54.20.100'.
10:51:39: Loading avcodec from '/usr/lib/x86_64-linux-gnu/libavcodec.so.56.26.100'.
10:51:39: Loading avformat from '/usr/lib/x86_64-linux-gnu/libavformat.so.56'.
10:51:39: Actual avutil path /usr/lib/x86_64-linux-gnu/libavutil.so.54.20.100
10:51:39: Actual avcodec path /usr/lib/x86_64-linux-gnu/libavcodec.so.56.26.100
10:51:39: Actual avformat path /usr/lib/x86_64-linux-gnu/libavformat.so.56.25.101
10:51:39: Importing symbols...
10:51:39: All symbols loaded successfully. Initializing the library.
10:51:39: Retrieving FFmpeg library version numbers:
10:51:39:    AVCodec version 0x381a64 - 56.26.100 (built against 0x373466 - 55.52.102)
10:51:39:    AVFormat version 0x381965 - 56.25.101 (built against 0x372164 - 55.33.100)
10:51:39:    AVUtil version 0x361464 - 54.20.100 (built against 0x344264 - 52.66.100)
10:51:39: Error: AVCodec version mismatch = 1
10:51:39: Error: AVFormat version mismatch = 1
10:51:39: Error: AVUtil version mismatch = 2
10:51:39: Error: Version mismatch. FFmpeg libraries are unusable.
10:51:39: Trying to load FFmpeg libraries from system paths. File name is 'libavformat.so.55'.
10:51:39: Checking for monolithic avformat from 'libavformat.so.55'.
10:51:39: Error: libavformat.so.55: cannot open shared object file: No such file or directory
10:51:39: Loading avutil from ''.
10:51:39: Error: .so: cannot open shared object file: No such file or directory
10:51:39: Loading avcodec from ''.
10:51:39: Error: .so: cannot open shared object file: No such file or directory
10:51:39: Loading avformat from 'libavformat.so.55'.
10:51:39: Error: libavformat.so.55: cannot open shared object file: No such file or directory
10:51:39: Error: Failed to load FFmpeg libraries.
10:51:39: Error: Failed to find compatible FFmpeg libraries.

Does anyone have an idea why this may be? Any hints?

Thanks
Chris

Posted: **Sun Nov 05, 2017 12:15 pm**

Try disabling dynamic loading. To do that, add the following option to your ./configure command:

Code: Select all

--disable-dynamic-loading

Hint: to perform a "clean" rebuild, clean the previous build with:

Code: Select all

make distclean

Posted: **Sun Nov 05, 2017 12:34 pm**

Thanks Steve for your hint but it doesn't work, same errors.

Posted: **Sun Nov 05, 2017 12:48 pm**

You may still be compiling against the local headers.

Try:

Code: Select all

--with-ffmpeg="system" --disable-dynamic-loading

Before running "make", check the output from ./configure to ensure that configure found the necessary headers for FFmpeg (you need to have the FFmpeg development headers installed).

Posted: **Sun Nov 05, 2017 5:53 pm**

It works, thanks for your help!

Audacity Forum

Audacity 2.2.0 cannot load ffmpeg libs [SOLVED]

Audacity 2.2.0 cannot load ffmpeg libs [SOLVED]

Re: Audacity 2.2.0 cannot load ffmpeg libs

Re: Audacity 2.2.0 cannot load ffmpeg libs

Re: Audacity 2.2.0 cannot load ffmpeg libs

Re: Audacity 2.2.0 cannot load ffmpeg libs [SOLVED]