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SubjectRe: [PATCH] media: cedrus: Propagate OUTPUT resolution to CAPTURE
Hi,

On Wed 15 Jul 20, 08:57, Ezequiel Garcia wrote:
> It seems this one felt thru the cracks. Sorry for the delay.
>
> On Thu, 2020-05-14 at 11:39 -0400, Nicolas Dufresne wrote:
> > As per spec, the CAPTURE resolution should be automatically set based on
> > the OTUPUT resolution. This patch properly propagate width/height to the
> > capture when the OUTPUT format is set and override the user provided
> > width/height with configured OUTPUT resolution when the CAPTURE fmt is
> > updated.
> >
> > This also prevents userspace from selecting a CAPTURE resolution that is
> > too small, avoiding unwanted page faults.
> >
> > Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
>
> This looks correct.

Looks like there's no issue with alignment (that will get applied as well),
which was a possible concern.

Thanks for reviewing!

Acked-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>

Cheers,

Paul

> Reviewed-by: Ezequiel Garcia <ezequiel@collabora.com>
>
> Thanks,
> Ezequiel
>
> > ---
> > drivers/staging/media/sunxi/cedrus/cedrus_video.c | 7 ++++++-
> > 1 file changed, 6 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/staging/media/sunxi/cedrus/cedrus_video.c b/drivers/staging/media/sunxi/cedrus/cedrus_video.c
> > index 16d82309e7b6..a6d6b15adc2e 100644
> > --- a/drivers/staging/media/sunxi/cedrus/cedrus_video.c
> > +++ b/drivers/staging/media/sunxi/cedrus/cedrus_video.c
> > @@ -247,6 +247,8 @@ static int cedrus_try_fmt_vid_cap(struct file *file, void *priv,
> > return -EINVAL;
> >
> > pix_fmt->pixelformat = fmt->pixelformat;
> > + pix_fmt->width = ctx->src_fmt.width;
> > + pix_fmt->height = ctx->src_fmt.height;
> > cedrus_prepare_format(pix_fmt);
> >
> > return 0;
> > @@ -319,11 +321,14 @@ static int cedrus_s_fmt_vid_out(struct file *file, void *priv,
> > break;
> > }
> >
> > - /* Propagate colorspace information to capture. */
> > + /* Propagate format information to capture. */
> > ctx->dst_fmt.colorspace = f->fmt.pix.colorspace;
> > ctx->dst_fmt.xfer_func = f->fmt.pix.xfer_func;
> > ctx->dst_fmt.ycbcr_enc = f->fmt.pix.ycbcr_enc;
> > ctx->dst_fmt.quantization = f->fmt.pix.quantization;
> > + ctx->dst_fmt.width = ctx->src_fmt.width;
> > + ctx->dst_fmt.height = ctx->src_fmt.height;
> > + cedrus_prepare_format(&ctx->dst_fmt);
> >
> > return 0;
> > }
> > --
> > 2.26.2
> >
> >
>
>

--
Paul Kocialkowski, Bootlin
Embedded Linux and kernel engineering
https://bootlin.com
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