Re: [PATCH] media: imx: Skip every second frame in VDIC DIRECT mode

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On 07/04/18 15:04, Marek Vasut wrote:
> In VDIC direct mode, the VDIC applies combing filter during and
> doubles the framerate, that is, after the first two half-frames
> are received and the first frame is emitted by the VDIC, every
> subsequent half-frame is patched into the result and a full frame
> is produced. The half-frame order in the full frames is as follows
> 12 32 34 54 etc.
> 
> Drop every second frame to trim the framerate back to the original
> one of the signal and skip the odd patched frames.
> 
> Signed-off-by: Marek Vasut <marex@xxxxxxx>
> Cc: Steve Longerbeam <steve_longerbeam@xxxxxxxxxx>
> Cc: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>

Steve, Philipp,

I saw there was a discussion about this patch, but no clear answer whether
or not this patch is OK. If it is, then please Ack this patch.

Regards,

	Hans

> ---
>  drivers/staging/media/imx/imx-media-vdic.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/staging/media/imx/imx-media-vdic.c b/drivers/staging/media/imx/imx-media-vdic.c
> index 482250d47e7c..b538bbebedc5 100644
> --- a/drivers/staging/media/imx/imx-media-vdic.c
> +++ b/drivers/staging/media/imx/imx-media-vdic.c
> @@ -289,6 +289,7 @@ static int vdic_setup_direct(struct vdic_priv *priv)
>  	/* set VDIC to receive from CSI for direct path */
>  	ipu_fsu_link(priv->ipu, IPUV3_CHANNEL_CSI_DIRECT,
>  		     IPUV3_CHANNEL_CSI_VDI_PREV);
> +	ipu_set_vdi_skip(priv->ipu, 0x2);
>  
>  	return 0;
>  }
> @@ -313,6 +314,8 @@ static int vdic_setup_indirect(struct vdic_priv *priv)
>  	const struct imx_media_pixfmt *incc;
>  	int in_size, ret;
>  
> +	ipu_set_vdi_skip(priv->ipu, 0x0);
> +
>  	infmt = &priv->format_mbus[VDIC_SINK_PAD_IDMAC];
>  	incc = priv->cc[VDIC_SINK_PAD_IDMAC];
>  
> 




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