Messages in this thread | | | From | Tomasz Figa <> | Date | Tue, 9 Jul 2019 15:15:05 +0900 | Subject | Re: [PATCH v5] media: docs-rst: Document m2m stateless video decoder interface |
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On Thu, Jun 20, 2019 at 4:35 PM Alexandre Courbot <acourbot@chromium.org> wrote: [snip] > +Initialization > +============== > + [snip] > +5. *[optional]* Choose a different ``CAPTURE`` format than suggested via > + :c:func:`VIDIOC_S_FMT` on ``CAPTURE`` queue. It is possible for the client to > + choose a different format than selected/suggested by the driver in > + :c:func:`VIDIOC_G_FMT`. > + > + * **Required fields:** > + > + ``type`` > + a ``V4L2_BUF_TYPE_*`` enum appropriate for ``CAPTURE``. > + > + ``pixelformat`` > + a raw pixel format.
We should be able to set different width and height as well, to allow strided and padded frame buffers. Otherwise we wouldn't be able to import DMA-bufs allocated from some other sources.
(FYI, I've posted a similar comment to the stateful interface too.)
Best regards, Tomasz
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