Re: [PATCH v5 2/3] media: test-drivers: Use V4L2_FMT_FLAG_ENUM_ALL flag

[Benjamin Gaignard <benjamin.gaignard@xxxxxxxxxxxxx>]

Le 30/07/2024 à 09:13, Hans Verkuil a écrit :
> On 22/07/2024 17:05, Benjamin Gaignard wrote:
> > Since V4L2_FMT_FLAG_ENUM_ALL flag mostly targeting stateless
> > decoder pixel formats enumeration, update vicodec visl test
> > drivers to use it.
> >
> > Signed-off-by: Benjamin Gaignard <benjamin.gaignard@xxxxxxxxxxxxx>
> > ---
> >   drivers/media/test-drivers/vicodec/vicodec-core.c |  7 ++++---
> >   drivers/media/test-drivers/visl/visl-video.c      | 11 +++++++----
> >   2 files changed, 11 insertions(+), 7 deletions(-)
> >
> > diff --git a/drivers/media/test-drivers/vicodec/vicodec-core.c b/drivers/media/test-drivers/vicodec/vicodec-core.c
> > index 3e011fe62ae1..1b4cd8ddd7c2 100644
> > --- a/drivers/media/test-drivers/vicodec/vicodec-core.c
> > +++ b/drivers/media/test-drivers/vicodec/vicodec-core.c
> > @@ -706,6 +706,7 @@ static int enum_fmt(struct v4l2_fmtdesc *f, struct vicodec_ctx *ctx,
> >   		    bool is_out)
> >   {
> >   	bool is_uncomp = (ctx->is_enc && is_out) || (!ctx->is_enc && !is_out);
> > +	u32 index = f->index & ~V4L2_FMT_FLAG_ENUM_ALL;
> This is not what I am looking for: to properly test this in v4l2-compliance this
> flag actually has to make a difference in the result. I.e. you actually have to
> add some limitation. This might be easier to do in visl than vicodec. As long as
> at least one test-driver support this, then that's good enough for me.

Ok I will focus on visl and made it return another list of formats when the
flag is set.

Regards,
Benjamin

> Regards,
>
> 	Hans
>
> >   
> >   	if (V4L2_TYPE_IS_MULTIPLANAR(f->type) && !multiplanar)
> >   		return -EINVAL;
> > @@ -718,18 +719,18 @@ static int enum_fmt(struct v4l2_fmtdesc *f, struct vicodec_ctx *ctx,
> >   
> >   		if (ctx->is_enc ||
> >   		    !vb2_is_streaming(&ctx->fh.m2m_ctx->cap_q_ctx.q))
> > -			info = v4l2_fwht_get_pixfmt(f->index);
> > +			info = v4l2_fwht_get_pixfmt(index);
> >   		else
> >   			info = v4l2_fwht_find_nth_fmt(info->width_div,
> >   						     info->height_div,
> >   						     info->components_num,
> >   						     info->pixenc,
> > -						     f->index);
> > +						     index);
> >   		if (!info)
> >   			return -EINVAL;
> >   		f->pixelformat = info->id;
> >   	} else {
> > -		if (f->index)
> > +		if (index)
> >   			return -EINVAL;
> >   		f->pixelformat = ctx->is_stateless ?
> >   			V4L2_PIX_FMT_FWHT_STATELESS : V4L2_PIX_FMT_FWHT;
> > diff --git a/drivers/media/test-drivers/visl/visl-video.c b/drivers/media/test-drivers/visl/visl-video.c
> > index f8d970319764..c5f3e13b4198 100644
> > --- a/drivers/media/test-drivers/visl/visl-video.c
> > +++ b/drivers/media/test-drivers/visl/visl-video.c
> > @@ -341,21 +341,24 @@ static int visl_enum_fmt_vid_cap(struct file *file, void *priv,
> >   				 struct v4l2_fmtdesc *f)
> >   {
> >   	struct visl_ctx *ctx = visl_file_to_ctx(file);
> > +	u32 index = f->index & ~V4L2_FMT_FLAG_ENUM_ALL;
> >   
> > -	if (f->index >= ctx->coded_format_desc->num_decoded_fmts)
> > +	if (index >= ctx->coded_format_desc->num_decoded_fmts)
> >   		return -EINVAL;
> >   
> > -	f->pixelformat = ctx->coded_format_desc->decoded_fmts[f->index];
> > +	f->pixelformat = ctx->coded_format_desc->decoded_fmts[index];
> >   	return 0;
> >   }
> >   
> >   static int visl_enum_fmt_vid_out(struct file *file, void *priv,
> >   				 struct v4l2_fmtdesc *f)
> >   {
> > -	if (f->index >= ARRAY_SIZE(visl_coded_fmts))
> > +	u32 index = f->index & ~V4L2_FMT_FLAG_ENUM_ALL;
> > +
> > +	if (index >= ARRAY_SIZE(visl_coded_fmts))
> >   		return -EINVAL;
> >   
> > -	f->pixelformat = visl_coded_fmts[f->index].pixelformat;
> > +	f->pixelformat = visl_coded_fmts[index].pixelformat;
> >   	return 0;
> >   }
> >