GPAC is a Free Software multimedia framework. The project covers different aspects of multimedia, with a focus on multimedia packaging and presentation technologies (graphics, animation, interactivity, VR). We provide popular packagers, streamers and players on http://www.gpac.io.
The GPAC team builds tomorrow multimedia standards. The GPAC team is renowned for its participation in standards (ISO/MPEG, W3C, etc.). GPAC is the reference software for some core multimedia technologies and drives innovative technologies (scalable and interactive video, etc.).
The internship aims at exploring the CMAF standard. CMAF aims at unifying all the existing video streaming formats and is backed by Apple and Microsoft. The role of the intern is to participate in the development of a CMAF validation service.
Continue reading Internship: next-generation video streaming analyzer (Paris, France)
As described here, GPAC supports HEVC tile-based adaptation in DASH. This post gives a quick walkthrough on how to build such sequences.
Continue reading HEVC Tile-based adaptation guide
This was the first Google Summer of Code (GSoC) for the GPAC team. GSoC is a program organized by Google “Google Summer of Code (GSoC) is an online, international program designed to encourage university student participation in open source software development”.
Continue reading GPAC report from GSoC 2016
As some of you may already know, Apple has announced during WWDC2016 the support for fragmented MP4 files in HLS:
We have been adding support in GPAC for fmp4 HLS, both at the client side and at MP4Box side.
Continue reading Support for Apple latest adaptive streaming format
There is often a lot of confusion from people using MP4Box to create MP4 files or DASH content with a specific aspect ratio. This confusion often comes from badly-chosen acronyms in the MP4/DASH standards. In this post, we clarify what MP4Box uses and does. Continue reading Aspect Ratios
We were at MMSys 2016 talking about new nice features in GPAC: support for MPEG-DASH Spatial Relation Description and HEVC motion-constrained tiling!
We had a quick poster presenting our two demos
Continue reading MPEG-DASH SRD and HEVC tiling for VR videos
Like every year the GPAC team went to the FOSDEM conference. FOSDEM is the biggest worldwide event about Open-Source Software (OSS). It occurs every year in January in Brussels, Belgium.
Continue reading MP4Box.js : our FOSDEM 2016 talk
GPAC GSoC page: https://summerofcode.withgoogle.com/organizations/6481702784335872/
The timeline to see the subject and apply is quite short (25 March for student application deadline): https://developers.google.com/open-source/gsoc/timeline
Please pass along the message. GSoC is a good opportunity for projects to improve and find contributors!
If you have any question, please contact email@example.com.
Release of GPAC 0.6.0.
Release notes are available at: https://github.com/gpac/gpac/releases/tag/v0.6.0
Bug tracker at: https://github.com/gpac/gpac/issues
Enjoy and spread the news!
Dear adaptive streaming followers,
Many of you reported issues when packaging your encoded content to respectively HLS or MPEG-DASH using GPAC (resp. the MP42TS and MP4Box tools). Most of the time, this is due to misalignment of key-frames across the different encoded qualities. In this article, we are going to show how to check key-frame alignment.
Continue reading Check key-frame alignment with MP4Box