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The image uses the meta-cmf-video-reference-next layer (https://code.rdkcentral.com/r/plugins/gitiles/components/generic/rdk-oe/meta-cmf-video-reference-next), which is contains all the necessary recipes for building DAC on the Raspberry Pi.
For more instructions on how to build/install the image, see the documentation here: RDK reference image.
A pre-built binary for the Raspberry Pi 3B from 2020-10-13 is available to download and flash from here: https://drive.google.com/file/d/1zKLtNw0jG7VMqS4xlpSJW8GihqS4i5ib/view?usp=sharing. This can be flashed onto the SD card using Etcher (https://www.balena.io/etcher/). Make sure to resize the second partition afterwards to at least 2GB. Or else there is not enough space to download the DAC apps on the rootfs. This can be done with fdisk or gparted.
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