Category: libde265 libde265 JS

libde265.js – JavaScript HEVC/H.265 bitstream decoder


libde265 logo.js

Imagine ultra low bandwidth HEVC/H.265 video streaming to your Linux laptop, your Android device, Chrome browser, Firefox. On Mac OS, Windows and the iPhone. A dream? Not anymore!

The libde265 team presents a demo of libde265.js, a JavaScript version of the libde265 H.265 High Efficiency Video decoder.

libde265.js

Simple HEVC/H.265 bitstream player in pure JavaScript.
Copyright © 2014 by struktur AG

 

The lib265.js HEVC/H.265 bitstream decoder entirely runs in JavaScript. Various browsers have been tested including Chrome and Firefox on Android, Linux and Windows, Safari 7 on OSX Mavericks, IE11 and Opera 20 on Windows.

libde265.js demo and source code is available on http://strukturag.github.io/libde265.js/

The HTML code from the demo can be used as an example on how to integrate libde265.js on a website:
https://github.com/strukturag/libde265.js/blob/gh-pages/index.html

Please note that the HEVC/H.265 bitstream file (here “spreedmovie.hevc”) must be located on the same server that provides the HTML as the HEVC movie file can’t be loaded cross-domain.

Playback speed on a fast PC is about: ~46 fps in Firefox, ~40 fps in Chrome. A Nexus 5 plays around 11fps.

Comments

  1. Nikolaos
    July 6th

    On Chrome OS 37.xxx. (dev channel), using ARM Samsung 3 Chromebook, I have 12 to 14,5 fps but with no sound on this demo. In your app from the Chrome store I tried an 720p/H.264 mkv file with AC3 audio, of a rather high bitrate, where for the first time I have audio but the video playback is very choppy. A message “Your computer is too slow to decode the movie in real time, playback performance may suffer” is displayed. With the latest Subtitle Videoplayer(v.1.7.0) I do not have sound in this copy but the video playback is fine. I then used another 720p/mkv/H.264 copy of a lower bitrate, with AAC audio, and the playback of both video and audio is fine using your H.265 / HEVC player app. Apparently you do not fully support Chrome OS and/or ARM CPUs. I will try to find a lower bitrate mkv/AC3 combo to see if the playback is OK. Thanks a lot for the effort, I hope i will soon be able to enjoy AC3 movies in my Chromebook.

  2. Gidion
    September 13th

    hello, i want to ask about this tutorial.

    Can we play another h265 format? such as mkv, mp4, or others?

    I change the filename in the file, but it seems the page doesn’t load the video..

    hope u have an answer for me about that.

    Thx u

  3. Any documentation on this library, I wanted to know if I wanted to go frame by frame. How would I do this? is there a get frame, or just to s specific time frame function?

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