CODEWITHSUNDEEP
pythonaudiomp3encoderpydub
Daniel Möller
Daniel Möller

Reputation: 86600

Pydub export error - Choose encoder manually

I'm trying to export a file as mp3 in pydub, but I get this error:

Automatic encoder selection failed for output stream #0:0. Default encoder for format mp3 is probably disabled. Please choose an encoder manually

How do I select an encoder manually, what is the default encoder, and how could I enable it?

PS: My Pydub opens mp3 files without any problem. I'm using Windows and Libav.

Upvotes: 6

Views: 11328

Answers (3)

user3755276
user3755276

Reputation: 31

I had the same problem as Emiel, where the ffmpeg version available in Anaconda did have an mp3 encoder. I solved the problem another way, by installing this version of ffmpeg from the conda-forge channel. I used:

conda install -n <anaconda-env> -c conda-forge ffmpeg

Now using ffmpeg -codecs | grep mp3 the mp3 encoders show up:

 DEA.L. mp3      MP3 (MPEG audio layer 3) (decoders: mp3float mp3 ) (encoders: libmp3lame libshine )

Upvotes: 3

Emiel
Emiel

Reputation: 388

The other solution did not work for me. The problem for me was that the ffmpeg version that came installed with Anaconda did not seem to be compiled with an encoder. So instead of:

DEA.L. mp3 MP3 (MPEG audio layer 3) (decoders: mp3 mp3float mp3_at ) (encoders: libmp3lame )

I saw:

DEA.L. mp3 MP3 (MPEG audio layer 3) (decoders: mp3 mp3float mp3_at )

Without the (encoders: ...) part.

My solution was to do this:

  • ffmpeg -codecs | grep mp3, to check if there is any encoder (there isn't!).
  • conda uninstall ffmpeg
  • Open new terminal window.
  • brew install ffmpeg --with-libmp3lame
  • ffmpeg -codecs | grep mp3, to check if there is any encoder (now there is!).

Upvotes: 7

Jiaaro
Jiaaro

Reputation: 76898

you can find which codecs are available with ffmpeg -codecs or avconv -codecs and on the line with mp3 you'll see something like:

DEA.L. mp3                  MP3 (MPEG audio layer 3) (decoders: mp3 mp3float mp3_at ) (encoders: libmp3lame )

D means ffmpeg can decode
E means it can encode
A means it's an audio codec
L means it's a lossy encoding

but the most important part is the encoders: … portion

I think you'll need to pick one of the encoders listed and tell pydub to use it (I'm not sure why, this isn't required on my machine - but it probably depends on your ffmpeg installation)

from pydub import AudioSegment
sound = AudioSegment.from_file(…)
sound.export("/path/to/output.mp3", codec="libmp3lame")

Upvotes: 3

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