I recently upgraded my Audacity installation from 2.3.0 to 2.4.1 on Mac OS Mojave 10.14.6. I got a popup on first run informing me I needed to reinstall ffmpeg, which I understand is due to the switch to 64-bit. It appears to be configured correctly now, but I’m not able to import an Opus audio file any more. I think the ffmpeg installation is set up correctly, I tried a WMA file and it imported fine. I can find lots of threads about Audacity lacking Opus export support, but everyone seems to say that imports should work fine (and they used to). Here’s the relevant bits from the log…
18:05:50: Audacity 2.4.1 18:05:50: Trying to load FFmpeg libraries... 18:05:50: mLibAVFormatPath ('/Library/Application Support/audacity/libs/ffmpeg.55.64bit.dylib') is not empty. Loading from it. 18:05:50: Checking for monolithic avformat from '/Library/Application Support/audacity/libs/ffmpeg.55.64bit.dylib'. 18:05:50: avformat not monolithic 18:05:50: Loading avutil from '/Library/Application Support/audacity/libs/ffmpeg_utils.52.64bit.dylib'. 18:05:50: Loading avcodec from '/Library/Application Support/audacity/libs/ffmpeg_codecs.55.64bit.dylib'. 18:05:50: Loading avformat from '/Library/Application Support/audacity/libs/ffmpeg.55.64bit.dylib'. 18:05:50: Actual avutil path /Library/Application Support/audacity/libs/ffmpeg_utils.52.64bit.dylib 18:05:50: Actual avcodec path /Library/Application Support/audacity/libs/ffmpeg_codecs.55.64bit.dylib 18:05:50: Actual avformat path /Library/Application Support/audacity/libs/ffmpeg.55.64bit.dylib 18:05:50: Importing symbols... 18:05:50: All symbols loaded successfully. Initializing the library. 18:05:50: Retrieving FFmpeg library version numbers: 18:05:50: AVCodec version 0x373466 - 55.52.102 (built against 0x373466 - 55.52.102) 18:05:50: AVFormat version 0x372164 - 55.33.100 (built against 0x372164 - 55.33.100) 18:05:50: AVUtil version 0x344264 - 52.66.100 (built against 0x344264 - 52.66.100) 18:05:50: FFmpeg libraries loaded successfully. ... 18:39:18: Mime type is * 18:39:18: Opening with libsndfile 18:39:18: Opening with liboggvorbis 18:39:18: Opening with libflac 18:39:18: Opening with lof 18:39:18: Opening with libav 18:39:18: Error: FFmpeg : avcodec_find_decoder() failed. Index, Codec[4f505553 - opus] 18:39:18: Error: Importer::Import: Opening failed.
What should I try next to get this working again?