Dolby Laboratories announced a strategic intellectual property partnership with OPPO. The partnership will result in OPPO collaborating with Dolby on High-Efficiency Advanced Audio Coding (HE-AAC), JPEG-HDR and other audio and video technologies.
High-Efficiency Advanced Audio Coding (HE-AAC) is an international standard for audio encoding by Dolby Laboratories that is currently being used by hundreds of companies around the world. JPEG-HDR is part of the static image encoding standard whilst also storing data in a highly dynamic range of more than 8 bits so users can sample the entire range during post-processing.
http://www.fonearena.com/blog/247336/dolby-oppo-high-efficiency-aac-jpeg-hdr.html