Re: [PATCH 3/6] hantro: Rework how encoder and decoder are identified

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On Fri, 2020-06-26 at 09:58 +0200, Philipp Zabel wrote:
> Hi Ezequiel,
> 
> On Thu, 2020-06-25 at 13:35 -0300, Ezequiel Garcia wrote:
> > So far we've been using the .buf_finish hook to distinguish
> > decoder from encoder. This is unnecessarily obfuscated.
> > 
> > Moreover, we want to move the buf_finish, so use a cleaner
> > scheme to distinguish the driver decoder/encoder type.
> > 
> > Signed-off-by: Ezequiel Garcia <ezequiel@xxxxxxxxxxxxx>
> > ---
> >  drivers/staging/media/hantro/hantro.h     | 2 ++
> >  drivers/staging/media/hantro/hantro_drv.c | 4 +++-
> >  2 files changed, 5 insertions(+), 1 deletion(-)
> > 
> > diff --git a/drivers/staging/media/hantro/hantro.h b/drivers/staging/media/hantro/hantro.h
> > index 3005207fc6fb..028b788ad50f 100644
> > --- a/drivers/staging/media/hantro/hantro.h
> > +++ b/drivers/staging/media/hantro/hantro.h
> > @@ -199,6 +199,7 @@ struct hantro_dev {
> >   *
> >   * @dev:		VPU driver data to which the context belongs.
> >   * @fh:			V4L2 file handler.
> > + * @is_encoder:		Decoder or encoder context?
> >   *
> >   * @sequence_cap:       Sequence counter for capture queue
> >   * @sequence_out:       Sequence counter for output queue
> > @@ -223,6 +224,7 @@ struct hantro_dev {
> >  struct hantro_ctx {
> >  	struct hantro_dev *dev;
> >  	struct v4l2_fh fh;
> > +	bool is_encoder;
> >  
> >  	u32 sequence_cap;
> >  	u32 sequence_out;
> > diff --git a/drivers/staging/media/hantro/hantro_drv.c b/drivers/staging/media/hantro/hantro_drv.c
> > index 0db8ad455160..112ed556eb90 100644
> > --- a/drivers/staging/media/hantro/hantro_drv.c
> > +++ b/drivers/staging/media/hantro/hantro_drv.c
> > @@ -197,7 +197,7 @@ static void device_run(void *priv)
> >  
> >  bool hantro_is_encoder_ctx(const struct hantro_ctx *ctx)
> >  {
> > -	return ctx->buf_finish == hantro_enc_buf_finish;
> > +	return ctx->is_encoder;
> >  }
> 
> Now this function feels a little superfluous. Why not replace
>   hantro_is_encoder_ctx(ctx)
> with
>   ctx->is_encoder
> everywhere?
> 

Absolutely.

Thanks for reviewing,
Ezequiel




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