On Wednesday, March 25, 2020 9:50 AM, Neil Armstrong <narmstrong@xxxxxxxxxxxx> wrote: > Amlogic uses a proprietary lossless image compression protocol and format > for their hardware video codec accelerators, either video decoders or > video input encoders. > > This introduces the Scatter Memory layout, means the header contains IOMMU > references to the compressed frames content to optimize memory access > and layout. > > In this mode, only the header memory address is needed, thus the content > memory organization is tied to the current producer execution and cannot > be saved/dumped neither transferrable between Amlogic SoCs supporting this > modifier. I don't think this is suitable for modifiers. User-space relies on being able to copy a buffer from one machine to another over the network. It would be pretty annoying for user-space to have a blacklist of modifiers that don't work this way. Example of such user-space: https://gitlab.freedesktop.org/mstoeckl/waypipe/ _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
