Using `wavinfo` from the Command Line
=====================================

`wavinfo` installs a command-line entry point that will read wav files
from the command line and output metadata to stdout.

.. code-block:: shell

    $ wavinfo [--ixml | --adm] INFILE +

By default, `wavinfo` will output a JSON dictionary for each file argument.


Options
-------

Two option flags will change the behavior of the command:

``--ixml``
    The *\-\-ixml* flag will cause `wavinfo` to output the iXML metadata payload
    of each input wave file, or will emit an error message to stderr if iXML 
    metadata is not present.

``--adm``
    The *\-\-adm* flag will cause `wavinfo` to output the ADM XML metadata 
    payload of each input wave file, or will emit an error message to stderr if
    ADM XML metadata is not present.

These options are mutually-exclusive, with `\-\-adm` taking precedence. 


Example Output
--------------

.. code-block:: javascript

    {
    "filename": "tests/test_files/sounddevices/A101_1.WAV",
    "run_date": "2022-11-26T17:56:38.342935",
    "application": "wavinfo 2.1.0",
    "scopes": {
        "fmt": {
        "audio_format": 1,
        "channel_count": 2,
        "sample_rate": 48000,
        "byte_rate": 288000,
        "block_align": 6,
        "bits_per_sample": 24
        },
        "data": {
        "byte_count": 1441434,
        "frame_count": 240239
        },
        "ixml": {
        "track_list": [
            {
            "channel_index": "1",
            "interleave_index": "1",
            "name": "MKH516 A",
            "function": ""
            },
            {
            "channel_index": "2",
            "interleave_index": "2",
            "name": "Boom",
            "function": ""
            }
        ],
        "project": "BMH",
        "scene": "A101",
        "take": "1",
        "tape": "18Y12M31",
        "family_uid": "USSDVGR1112089007124001008206300",
        "family_name": null
        },
        "bext": {
        "description": "sSPEED=023.976-ND\r\nsTAKE=1\r\nsUBITS=$12311801\r\nsSWVER=2.67\r\nsPROJECT=BMH\r\nsSCENE=A101\r\nsFILENAME=A101_1.WAV\r\nsTAPE=18Y12M31\r\nsTRK1=MKH516 A\r\nsTRK2=Boom\r\nsNOTE=\r\n",
        "originator": "Sound Dev: 702T S#GR1112089007",
        "originator_ref": "USSDVGR1112089007124001008206301",
        "originator_date": "2018-12-31",
        "originator_time": "12:40:00",
        "time_reference": 2190940753,
        "version": 1,
        "umid": "0000000000000000000000000000000000000000000000000000000000000000",
        "coding_history": "A=PCM,F=48000,W=24,M=stereo,R=48000,T=2 Ch\r\n",
        "loudness_value": null,
        "loudness_range": null,
        "max_true_peak": null,
        "max_momentary_loudness": null,
        "max_shortterm_loudness": null
        }
    }
    }