[PATCH v3 4/6] ipa: simple: Report black levels in metadata

[Laurent Pinchart]

Hi Milan,

Thank you for the patch.

On Mon, Jan 13, 2025 at 02:34:03PM +0100, Milan Zamazal wrote:
> From: Kieran Bingham <kieran.bingham at ideasonboard.com>
> 
> Provide the determined black level values in the metadata
> to add to the completed requests.

Reflow to 72 columns.

Reviewed-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>

> Signed-off-by: Kieran Bingham <kieran.bingham at ideasonboard.com>
> Signed-off-by: Milan Zamazal <mzamazal at redhat.com>
> ---
>  src/ipa/simple/algorithms/blc.cpp | 9 ++++++++-
>  1 file changed, 8 insertions(+), 1 deletion(-)
> 
> diff --git a/src/ipa/simple/algorithms/blc.cpp b/src/ipa/simple/algorithms/blc.cpp
> index 1d7d370b..d5759f92 100644
> --- a/src/ipa/simple/algorithms/blc.cpp
> +++ b/src/ipa/simple/algorithms/blc.cpp
> @@ -11,6 +11,8 @@
>  
>  #include <libcamera/base/log.h>
>  
> +#include "control_ids.h"
> +
>  namespace libcamera {
>  
>  namespace ipa::soft::algorithms {
> @@ -49,8 +51,13 @@ void BlackLevel::process(IPAContext &context,
>  			 [[maybe_unused]] const uint32_t frame,
>  			 IPAFrameContext &frameContext,
>  			 const SwIspStats *stats,
> -			 [[maybe_unused]] ControlList &metadata)
> +			 ControlList &metadata)
>  {
> +	/* Assign each of the R G G B channels as the same black level. */
> +	const int32_t blackLevel = context.activeState.blc.level * 256;
> +	const int32_t blackLevels[] = { blackLevel, blackLevel, blackLevel, blackLevel };
> +	metadata.set(controls::SensorBlackLevels, blackLevels);
> +
>  	if (context.configuration.black.level.has_value())
>  		return;
>  

-- 
Regards,

Laurent Pinchart