I managed to integrate Netflix on Android 6.0.1 Marshmallow BSP for the i.MX6DL, i.MX6Q and i.MX6QP. I posted the step by step procedure on the i.mxdev blog:
I believe the issue is related to AAC Plus Codec, could you please try the steps described in section "Adding AAC Plus Codec in the prebuilt image" of document below?
Thank you, that explains why Audio is not working with the default images. Do you know the reason why the AAC codecs are not part of the demo images? Did you also measure the busload?
The AAC codecs are not part of the demo images because it has a different license, you can have more informations about the license on the "i.MX AndroidTM Extended Codec Release Notes" Android OS for i.MX Applications Processors|NXP. I didn't measure the busload, but would be nice to have this information.