On Mon, 2020-07-06 at 09:45 +0000, Jonas Karlman wrote:
> On 2020-06-26 19:11, Ezequiel Garcia wrote:
> > The hardware only supports 4:2:2, 4:2:0 or 4:0:0 (monochrome),
> > 8-bit or 10-bit depth content.
> > 
> > Verify that the PPS refers to a supported bitstream, and refuse
> 
> This should be SPS not PPS, same for hantro patch.
> 

Yup.

> > unsupported bitstreams by failing at TRY_EXT_CTRLS time.
> > 
> > The driver is currently broken on 10-bit and 4:2:2
> > so disallow those as well.
> > 
> > Signed-off-by: Ezequiel Garcia <[email protected]>
> > ---
> >  drivers/staging/media/rkvdec/rkvdec.c | 27 +++++++++++++++++++++++++++
> >  1 file changed, 27 insertions(+)
> > 
> > diff --git a/drivers/staging/media/rkvdec/rkvdec.c 
> > b/drivers/staging/media/rkvdec/rkvdec.c
> > index 225eeca73356..0f81b47792f6 100644
> > --- a/drivers/staging/media/rkvdec/rkvdec.c
> > +++ b/drivers/staging/media/rkvdec/rkvdec.c
> > @@ -27,6 +27,32 @@
> >  #include "rkvdec.h"
> >  #include "rkvdec-regs.h"
> >  
> > +static int rkvdec_try_ctrl(struct v4l2_ctrl *ctrl)
> > +{
> > +   if (ctrl->id == V4L2_CID_MPEG_VIDEO_H264_SPS) {
> > +           const struct v4l2_ctrl_h264_sps *sps = ctrl->p_cur.p;
> 
> This should be p_new and not p_cur to validate the new ctrl value, same for 
> hantro patch.
> 
> With both fixed this and the hantro patch is,
> 
> Reviewed-by: Jonas Karlman <[email protected]>
> 

Ah, nice catch. Will fix.

Thanks,
Ezequiel

> Regards,
> Jonas
> 
> > +           /*
> > +            * TODO: The hardware supports 10-bit and 4:2:2 profiles,
> > +            * but it's currently broken in the driver.
> > +            * Reject them for now, until it's fixed.
> > +            */
> > +           if (sps->chroma_format_idc > 1)
> > +                   /* Only 4:0:0 and 4:2:0 are supported */
> > +                   return -EINVAL;
> > +           if (sps->bit_depth_luma_minus8 != sps->bit_depth_chroma_minus8)
> > +                   /* Luma and chroma bit depth mismatch */
> > +                   return -EINVAL;
> > +           if (sps->bit_depth_luma_minus8 != 0)
> > +                   /* Only 8-bit is supported */
> > +                   return -EINVAL;
> > +   }
> > +   return 0;
> > +}
> > +
> > +static const struct v4l2_ctrl_ops rkvdec_ctrl_ops = {
> > +   .try_ctrl = rkvdec_try_ctrl,
> > +};
> > +
> >  static const struct rkvdec_ctrl_desc rkvdec_h264_ctrl_descs[] = {
> >     {
> >             .per_request = true,
> > @@ -42,6 +68,7 @@ static const struct rkvdec_ctrl_desc 
> > rkvdec_h264_ctrl_descs[] = {
> >             .per_request = true,
> >             .mandatory = true,
> >             .cfg.id = V4L2_CID_MPEG_VIDEO_H264_SPS,
> > +           .cfg.ops = &rkvdec_ctrl_ops,
> >     },
> >     {
> >             .per_request = true,
> > 


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