On 07/05/2024 16:09, Dmitry Baryshkov wrote:
Ah, I see. Then why do you require the DMA-ble buffer at all? If you are
providing data to VPU or DRM, then you should be able to get the buffer
from the data-consuming device.
Because we don't necessarily know what the consuming device is, if any.
Could be VPU, could be Zoom/Hangouts via pipewire, could for argument
sake be GPU or DSP.
Also if we introduce a dependency on another device to allocate the
output buffers - say always taking the output buffer from the GPU, then
we've added another dependency which is more difficult to guarantee
across different arches.
---
bod
