riff-reader

riff-reader

RIFF (Resource Interchange File Format) file reader.

see https://msdn.microsoft.com/en-us/library/windows/desktop/dd798636(v=vs.85).aspx

Installation

  npm install riff-reader --save

Usage

var reader = require('riff-reader');
 
reader('.../hogehoge.riff', 'HOGE')
    .readSync(function(chunkId, data) {
        // do something with id and data buffer
    },['HOGE','FUGA']);
 
 
// you can also use buffer.
var buffer = fs.readFileSync('.../hogehoge.riff');
 
reader(buffer, 'HOGE')
    .readSync(function(chunkId, data) {
        // do something with id and data buffer
    },['HOGE','FUGA']);

API

reader(file, formType)

create new reader instance.

file

Type: String or instance of Buffer

The file path or buffer of file content.

formType

Type: String

The form type of the RIFF content.

reader.readSync(callback, [subscribeIds])

read file synchronously.

callback

Type: function(id, data)

id

Type: String

The chunk ID.

data

Type: instance of Buffer

The buffer of chunk data content. id and size are not contained.

subscribeIds

Type: array of String, Optional, Default: all chunks.

The array of chunk id to read for.

TODO

• asynchronous read operation