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 <samuel@xxxxxxxxxxxx>" 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.dufresne@xxxxxxxxxxxxx> > --- > 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; > }
