audiotranscode

python module to transcode between audio formats using the CLI frontends of the codecs already installed on your system, e.g lame, vorbis-tools etc

supported python versions:

• 2.6
• 2.7
• 3.2
• 3.3
• pypy

supported formats

As of now audiotranscode can transcode between any of the following formats:

filetype (program used)

• mp3 (lame, ffmpeg)
• ogg (vorbis oggenc/oggdec, ffmpeg)
• aac/m4a (faac, faad)
• flac (flac)
• wav

command line usage

audiotranscoder [-b BITRATE] <infile> <outfile>

bitrate is specified in kbits/s. <input> is the path to the file that needs to be transcoded. <output> is the output path. The file extension of the output determines the output format

audiotranscoder --codecs

shows all installed codecs

programatical usage

Using audiotranscode is as easy as py:

import audiotranscode
at = audiotranscode.AudioTranscode()
at.transcode('path/to/some.mp3','output/path.ogg')

you can also set the bitrate of the output stream, like so:

at.transcode('path/to/some.aac','output/path.mp3',bitrate=128)

You can also get the encoded data on the fly for live transcoding:

for data in at.transcode_stream('path/to/some.flac','mp3'):
    # do something with chuck of data
    # e.g. sendDataToClient(data)

If you need to know which formats can be transcoded:

at = audiotranscode = AudioTranscode()
at.available_encoder_formats() #returns list like ['mp3','ogg', ...]
at.available_decoder_formats() #returns list like ['mp3','ogg', ...]

limitations

As of now, i have only tested 16bit, 44100Hz, 2 channel audio, since it is the most used, other formats might or might not work.

But feel free fork this repo and to add stuff!