NodeJS wrapper around ffprobe

npm install node-ffprobe
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FFProbe for NodeJS

A simple wrapper around ffprobe written in NodeJS

This module requires ffmpeg to be installed before it can function. The ffmpeg package comes bundled with ffprobe.


sudo apt-get install ffmpeg
npm install node-ffprobe


var probe = require('node-ffprobe');

var track = '/path/to/media/file.mp3';

probe(track, function(err, probeData) {

Calling probe will execute ffprobe and parse the data it sends to STDOUT. A sample object can be seen below.

The streams, format, and metadata fields are taken directly from ffprobe. probe_time is the total execution time for the given file.

    "filename": "Before We Dissolve.mp3",
    "filepath": "/path/to/media",
    "fileext": ".mp3",
    "file": "/path/to/media/Before We Dissolve.mp3",
    "probe_time": 642,
    "streams": [
            "codec_name": "mp3",
            "codec_long_name": "MP3 (MPEG audio layer 3)",
            "codec_type": "audio",
            "codec_time_base": "0/1",
            "codec_tag_string": "[0][0][0][0]",
            "codec_tag": "0x0000",
            "sample_rate": 44100,
            "channels": 2,
            "bits_per_sample": 0,
            "r_frame_rate": "0/0",
            "avg_frame_rate": "1225/32",
            "time_base": "1/14112000",
            "start_time": 0,
            "duration": 149.524898
    "format": {
        "nb_streams": 1,
        "format_name": "mp3",
        "format_long_name": "MPEG audio layer 2/3",
        "start_time": 0,
        "duration": 149.524898,
        "size": 2392815,
        "bit_rate": 128022
    "metadata": {}
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