[libcamera-devel] [PATCH v4 1/6] libcamera: formats: Reimplement V4L2 PixelFormatInfo::info()

Laurent Pinchart laurent.pinchart at ideasonboard.com
Tue Aug 2 18:31:30 CEST 2022


Hi Jacopo,

Thank you for the patch.

On Tue, Aug 02, 2022 at 06:01:31PM +0200, Jacopo Mondi via libcamera-devel wrote:
> The PixelFormatInfo::info(const V4L2PixelFormat &format) function
> returns the PixelFormatInfo associated with a V4L2 pixel format.
> 
> As the pixelFormatInfo map is indexed using PixelFormat and a V4L2
> format can easily be converted to a PixelFormat, simply return
> the info() function overload instead of maintaining two similar
> implementations of the same function.
> 
> Signed-off-by: Jacopo Mondi <jacopo at jmondi.org>

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

> ---
>  src/libcamera/formats.cpp | 12 ++----------
>  1 file changed, 2 insertions(+), 10 deletions(-)
> 
> diff --git a/src/libcamera/formats.cpp b/src/libcamera/formats.cpp
> index 283ecb3d89d8..53207b734143 100644
> --- a/src/libcamera/formats.cpp
> +++ b/src/libcamera/formats.cpp
> @@ -987,22 +987,14 @@ const PixelFormatInfo &PixelFormatInfo::info(const PixelFormat &format)
>  }
>  
>  /**
> - * \brief Retrieve information about a pixel format
> + * \brief Retrieve information about a V4L2 pixel format
>   * \param[in] format The V4L2 pixel format
>   * \return The PixelFormatInfo describing the V4L2 \a format if known, or an
>   * invalid PixelFormatInfo otherwise
>   */
>  const PixelFormatInfo &PixelFormatInfo::info(const V4L2PixelFormat &format)
>  {
> -	const auto &info = std::find_if(pixelFormatInfo.begin(), pixelFormatInfo.end(),
> -					[format](auto pair) {
> -						return pair.second.v4l2Formats.single == format ||
> -						       pair.second.v4l2Formats.multi == format;
> -					});
> -	if (info == pixelFormatInfo.end())
> -		return pixelFormatInfoInvalid;
> -
> -	return info->second;
> +	return info(format.toPixelFormat());
>  }
>  
>  /**

-- 
Regards,

Laurent Pinchart


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