Echonest API for Zotonic

This is a Zotonic module which hooks into media files uploads and augments any uploaded audio media files with info from the echonest API.

After the upload of any audio media file, it calls the Echonest API to identiy the uploaded MP3 file. After identification, it will store the found metadata in the rsc record of the audio file, ready for use in Zotonic templates.

{
        "analyzer_version": "3.01a", 
        "artist": "How to Destroy Angels", 
        "audio_md5": "97507e1eeda3e62abeabcc8dd51e6bd6", 
        "audio_summary": {
            "analysis_url": "https://echonest-analysis.s3.amazonaws.com:443/TR/TRGOVKX128F7FA5920/3/full.json?Signature=5RpVgJbbI9V9GyWApJnYGlMcTfw%3D&Expires=1308071436&AWSAccessKeyId=AKIAJRDFEY23UEVW42BQ", 
            "danceability": 0.59608747988903843, 
            "duration": 240.27383, 
            "energy": 0.74113818413872323, 
            "key": 2, 
            "loudness": -6.0359999999999996, 
            "mode": 1, 
            "tempo": 124.033, 
            "time_signature": 4
        }, 
        "bitrate": 320, 
        "id": "TRGOVKX128F7FA5920", 
        "md5": "cd9276287838f11f2d7f39cd10391195", 
        "release": "How to Destroy Angels", 
        "samplerate": 44100, 
        "status": "complete", 
        "title": "Fur Lined"
    }
}

Configuration

The config key mod_audio_echonest.api_key needs to contain a valid Echonest API key, which can be obtained from this URL: https://developer.echonest.com/account/register

Known issues

• It only works for MP3 files currently.