7 NEWSFEED Updates & upgrades
DPP SPEC FOR UHD BROADCAST DELIVERY LAUNCHED
The Digital Production Partnership (DPP) has announced a new tech specification for UHD programme delivery, AMWA AS-11 X1 – MXF Programme Contribution DPP UHD. In partnership with the Advanced Media Workflow Association (AMWA), the DPP built the new spec on AMWA AS-11 UK DPP v1.1, a standardised delivery specification for air-ready masters, implemented by UK broadcasters. The new AMWA AS-11 X1 brings UHD delivery to the AMWA AS-11 family of formats and is aimed at the DPP’s international membership. The AMWA AS-11 specifications define media file formats for the delivery of finished media assets to a broadcaster or publisher. In order to facilitate automated workflows, AS-11 specifications have been developed as block-based, machine-readable specifications. The AMWA AS-11 X1 – MXF Programme Contribution DPP UHD
specification will be first implemented in UHD deliveries to the BBC iPlayer in 2019. The next additions to the AMWA
AS-11 family will be AMWA AS-11 X8 and X9, which aim to provide HD delivery formats for the North American market.
CHROME BROWSER ADDS PIP, AV1
Google’s Chrome browser has been updated to support several new video features. With Chrome 70, web developers can now control picture-in-picture (PiP) for videos via a new PiP API. Picture-in-picture allows users to watch videos in a floating window on top of other windows, while interacting with other sites or applications. The Chrome picture-in-picture API followed in the footsteps of Safari’s PiP support in macOS Sierra. Chrome Desktop x86-64 now supports the AV1 decoder. AV1 is a new codec established by the Alliance for
to improve compression efficiency by more than 30% over the VP9 codec. Chrome 70 adds an AV1 decoder to Chrome Desktop x86-64 based on the official bitstream specification. The supported container is MP4. Cross-codec and cross-bytestream buffering and playback is possible in Google’s MSE (Media Source
Extensions) and Chrome also now supports the audio codec Opus in MP4. Additionally, in Chrome 70
Open Media, a consortium of video technology companies, seeking to create an open, royalty-free solution for media delivery over the web. AV1 is said
for Android the default value of the ‘protected content’ setting has been changed from ‘Ask First’ to ‘Allowed’ to reduce friction for video consumers.
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