Le jeudi 14 mai 2020 à 11:39 -0400, Nicolas Dufresne a écrit :
> 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.
Side note, this patch is based on top of "Samuel Holland <sam...@sholland.org>"
patches:
[PATCH v3 1/2] media: cedrus: Program output format during each run
[PATCH v3 2/2] media: cedrus: Implement runtime PM
As the patchset also fixes concurrent decoding issues. This was tested using
GStreamer implementation, which strictly follow the Stateless CODEC spec and
expect OUTPUT to CAPTURE width/height propagation.
>
> Signed-off-by: Nicolas Dufresne <nicolas.dufre...@collabora.com>
> ---
> 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;
> }
_______________________________________________
devel mailing list
de...@linuxdriverproject.org
http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
