fMP4 parser in Javascript
npm install fmp4.jsA Javascript library to parse ISO Base Media File Format (MPEG-4 Part 12) ISO/IEC 14496-12
``
npm install --save fmp4.js
The library implements the Writable stream interface and acts a a "sink". For example to download
and parse an MP4 fragment:
`
const request = require("request");
const fMP4 = require("fmp4.js");
request.get("http://example.com/video.dash")
.pipe(fMP4.parse())
.on("finish", function() {
// Obtain all boxes found in the fragment
const boxes = fMP4.boxes;
// Parse each box
for (let i = 0; i < boxes.length; i++) {
let parsedBox = boxes[i].parse(); // MP4Box
/**
*
* MP4Box {
* hdr: { size, type, hdrsize },
* $type: {
* key/value pairs,
* array of child boxes (if available)
* }
* }
*/
console.log(parsedBox);
}
});
`
An example implementation of the library that parses and dump the contents of an ISOBMFF file is included:
`
node mp4dump.js test/support/testassets/cmaf_chunk.mp4