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:shower: The awesome JPEG minifying power of mozjpeg wrapped up as a `.pipe` friendly stream.

License: ISC License

JavaScript 100.00%

mozjpeg-stream's Introduction

mozjpeg-stream

The awesome JPEG minifying power of mozjpeg wrapped up as a .pipe friendly node duplex stream.

Grab flying pugs over http and automagically minify them with mozjpeg before letting them near your hard drive.

var fs = require('fs')
var http = require('http')
var mozjpeg = require('mozjpeg-stream')

http.get('http://aboutpug.com/wp-content/uploads/2015/01/flying-monkey-cute-pug.jpg')
  .on('response', function (resp) {
    resp
      .pipe(mozjpeg())
      .pipe(fs.createWriteStream('flying-pug.min.jpg'))
  })

And so this chunky 1.5M of raw pug

...becomes 132K of optimal, progressive, mozjpeg'd, flying pug:

mozjpeg sets the compression quality to 75 by default, but you can adjust it:

fs.createReadStream('flying-pug.jpg')
  .pipe(mozjpeg({quality: 50}))
  .pipe(fs.createWriteStream('flying-pug.q50.jpg'))

So you can wring out further byte savings, and for many pictures, nothing of importance is lost...

84K of -quality 50, piped, progressive, mozjpeg'd, flying pug

More info

mozjpeg-stream wraps the most excellent mozjpeg module by the imagemin crew, which in turn wraps mozjpeg from the most excellent Mozilla. So it's good stuff all the way down.

A (╯°□°）╯︵TABLEFLIP side project.

mozjpeg-stream's People

Contributors

Stargazers

Watchers

Forkers

rmehner nekodex pepkin88 joshhighland kleopatra999 amacou japrescott

mozjpeg-stream's Issues

Update dependencies 'npm audit fix'

[email protected]
added 332 packages from 144 contributors and audited 2784 packages in 54.441s
found 7 vulnerabilities (5 low, 2 moderate)
run npm audit fix to fix them, or npm audit for details

Command failed: Unrecognized input file format --- perhaps you need -targa

req.busboy.on('file', function (fieldname, file, filename, encoding, mimetype) {

    gm(file, dirname + '/' + filename)
                        .resize(200, 200)
                        .stream('png')
                        .on('error', function (err) {
                            sails.log.error("error in input stream ", err);
                            return res.negotiate(err);
                        }).on('end', function (end) {
                                ApiService.standardJsonResponse(err, menus && menus[0], req, res);
                            });
                        })
                        .pipe(mozjpeg({ quality: jpgQuality }))
                        .pipe(fs.createWriteStream(saveTo));
            }

        });
.....

Fires error:

events.js:141
      throw er; // Unhandled 'error' event
      ^

Error: Command failed: Unrecognized input file format --- perhaps you need -targa

  at ChildProcess.onExit (****\node_modules\duplex-child-process\index.js:116:12)
  at ChildProcess.g (events.js:260:16)
  at emitTwo (events.js:87:13)
  at ChildProcess.emit (events.js:172:7)
  at maybeClose (internal/child_process.js:818:16)
  at Socket.<anonymous> (internal/child_process.js:319:11)
  at emitOne (events.js:77:13)
  at Socket.emit (events.js:169:7)
  at Pipe._onclose (net.js:469:12)

Please move `tape` to `devDependencies`

Tape is used only for testing, it shouldn't be in dependencies.

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