[libcamera-devel] [PATCH 5/5] libcamera: imx8-isi: Remove mbusCode from formatsMap_

Jacopo Mondi jacopo.mondi at ideasonboard.com
Mon Mar 13 09:59:09 CET 2023


Hi Laurent

On Sun, Mar 12, 2023 at 06:51:56PM +0200, Laurent Pinchart wrote:
> Hi Jacopo,
>
> Thank you for the patch.
>
> On Sun, Jan 29, 2023 at 02:58:30PM +0100, Jacopo Mondi via libcamera-devel wrote:
> > Now that the media bus code selection procedure does not depend
> > on the ISICameraConfiguration::formatsMap_ remove the association
> > between PixelFormat supported by the ISI and the media bus code produced
> > by the sensor.
> >
> > Signed-off-by: Jacopo Mondi <jacopo.mondi at ideasonboard.com>
> > ---
> >  src/libcamera/pipeline/imx8-isi/imx8-isi.cpp | 159 ++++---------------
> >  1 file changed, 29 insertions(+), 130 deletions(-)
> >
> > diff --git a/src/libcamera/pipeline/imx8-isi/imx8-isi.cpp b/src/libcamera/pipeline/imx8-isi/imx8-isi.cpp
> > index 0e1e87c7a2aa..f754f5d77f90 100644
> > --- a/src/libcamera/pipeline/imx8-isi/imx8-isi.cpp
> > +++ b/src/libcamera/pipeline/imx8-isi/imx8-isi.cpp
> > @@ -76,18 +76,6 @@ public:
> >  class ISICameraConfiguration : public CameraConfiguration
> >  {
> >  public:
> > -	/*
> > -	 * formatsMap_ records the association between an output pixel format
> > -	 * and the combination of V4L2 pixel format and media bus codes that have
> > -	 * to be applied to the pipeline.
> > -	 */
> > -	struct PipeFormat {
> > -		unsigned int isiCode;
> > -		unsigned int sensorCode;
> > -	};
> > -
> > -	using FormatMap = std::map<PixelFormat, PipeFormat>;
> > -
> >  	ISICameraConfiguration(ISICameraData *data)
> >  		: data_(data)
> >  	{
> > @@ -95,7 +83,7 @@ public:
> >
> >  	Status validate() override;
> >
> > -	static const FormatMap formatsMap_;
> > +	static const std::map<PixelFormat, unsigned int> formatsMap_;
> >
> >  	V4L2SubdeviceFormat sensorFormat_;
> >
> > @@ -333,121 +321,33 @@ unsigned int ISICameraData::getMediaBusFormat(PixelFormat *pixelFormat) const
> >   * Camera Configuration
> >   */
> >
> > -/**
> > - * \todo Do not associate the sensor format to non-RAW pixelformats, as
> > - * the ISI can do colorspace conversion.
> > +/*
> > + * ISICameraConfiguration::formatsMap_ records the association between an output
> > + * pixel format and the ISI source pixel format to be applied to the pipeline.
> >   */
> > -const ISICameraConfiguration::FormatMap ISICameraConfiguration::formatsMap_ = {
> > -	{
> > -		formats::YUYV,
> > -		{ MEDIA_BUS_FMT_YUV8_1X24,
> > -		  MEDIA_BUS_FMT_UYVY8_1X16 },
> > -	},
> > -	{
> > -		formats::AVUY8888,
> > -		{ MEDIA_BUS_FMT_YUV8_1X24,
> > -		  MEDIA_BUS_FMT_UYVY8_1X16 },
> > -	},
> > -	{
> > -		formats::NV12,
> > -		{ MEDIA_BUS_FMT_YUV8_1X24,
> > -		  MEDIA_BUS_FMT_UYVY8_1X16 },
> > -	},
> > -	{
> > -		formats::NV16,
> > -		{ MEDIA_BUS_FMT_YUV8_1X24,
> > -		  MEDIA_BUS_FMT_UYVY8_1X16 },
> > -	},
> > -	{
> > -		formats::YUV444,
> > -		{ MEDIA_BUS_FMT_YUV8_1X24,
> > -		  MEDIA_BUS_FMT_UYVY8_1X16 },
> > -	},
> > -	{
> > -		formats::RGB565,
> > -		{ MEDIA_BUS_FMT_RGB888_1X24,
> > -		  MEDIA_BUS_FMT_RGB565_1X16 },
> > -	},
> > -	{
> > -		formats::BGR888,
> > -		{ MEDIA_BUS_FMT_RGB888_1X24,
> > -		  MEDIA_BUS_FMT_RGB565_1X16 },
> > -	},
> > -	{
> > -		formats::RGB888,
> > -		{ MEDIA_BUS_FMT_RGB888_1X24,
> > -		  MEDIA_BUS_FMT_RGB565_1X16 },
> > -	},
> > -	{
> > -		formats::XRGB8888,
> > -		{ MEDIA_BUS_FMT_RGB888_1X24,
> > -		  MEDIA_BUS_FMT_RGB565_1X16 },
> > -	},
> > -	{
> > -		formats::ABGR8888,
> > -		{ MEDIA_BUS_FMT_RGB888_1X24,
> > -		  MEDIA_BUS_FMT_RGB565_1X16 },
> > -	},
> > -	{
> > -		formats::SBGGR8,
> > -		{ MEDIA_BUS_FMT_SBGGR8_1X8,
> > -		  MEDIA_BUS_FMT_SBGGR8_1X8 },
> > -	},
> > -	{
> > -		formats::SGBRG8,
> > -		{ MEDIA_BUS_FMT_SGBRG8_1X8,
> > -		  MEDIA_BUS_FMT_SGBRG8_1X8 },
> > -	},
> > -	{
> > -		formats::SGRBG8,
> > -		{ MEDIA_BUS_FMT_SGRBG8_1X8,
> > -		  MEDIA_BUS_FMT_SGRBG8_1X8 },
> > -	},
> > -	{
> > -		formats::SRGGB8,
> > -		{ MEDIA_BUS_FMT_SRGGB8_1X8,
> > -		  MEDIA_BUS_FMT_SRGGB8_1X8 },
> > -	},
> > -	{
> > -		formats::SBGGR10,
> > -		{ MEDIA_BUS_FMT_SBGGR10_1X10,
> > -		  MEDIA_BUS_FMT_SBGGR10_1X10 },
> > -	},
> > -	{
> > -		formats::SGBRG10,
> > -		{ MEDIA_BUS_FMT_SGBRG10_1X10,
> > -		  MEDIA_BUS_FMT_SGBRG10_1X10 },
> > -	},
> > -	{
> > -		formats::SGRBG10,
> > -		{ MEDIA_BUS_FMT_SGRBG10_1X10,
> > -		  MEDIA_BUS_FMT_SGRBG10_1X10 },
> > -	},
> > -	{
> > -		formats::SRGGB10,
> > -		{ MEDIA_BUS_FMT_SRGGB10_1X10,
> > -		  MEDIA_BUS_FMT_SRGGB10_1X10 },
> > -	},
> > -	{
> > -		formats::SBGGR12,
> > -		{ MEDIA_BUS_FMT_SBGGR12_1X12,
> > -		  MEDIA_BUS_FMT_SBGGR12_1X12 },
> > -	},
> > -	{
> > -		formats::SGBRG12,
> > -		{ MEDIA_BUS_FMT_SGBRG12_1X12,
> > -		  MEDIA_BUS_FMT_SGBRG12_1X12 },
> > -	},
> > -	{
> > -		formats::SGRBG12,
> > -		{ MEDIA_BUS_FMT_SGRBG12_1X12,
> > -		  MEDIA_BUS_FMT_SGRBG12_1X12 },
> > -	},
> > -	{
> > -		formats::SRGGB12,
> > -		{ MEDIA_BUS_FMT_SRGGB12_1X12,
> > -		  MEDIA_BUS_FMT_SRGGB12_1X12 },
> > -	},
> > +const std::map<PixelFormat, unsigned int> ISICameraConfiguration::formatsMap_ = {
> > +	{ formats::YUYV, MEDIA_BUS_FMT_UYVY8_1X16 },
> > +	{ formats::AVUY8888, MEDIA_BUS_FMT_UYVY8_1X16 },
> > +	{ formats::NV12, MEDIA_BUS_FMT_UYVY8_1X16 },
> > +	{ formats::NV16, MEDIA_BUS_FMT_UYVY8_1X16 },
> > +	{ formats::YUV444, MEDIA_BUS_FMT_UYVY8_1X16 },
> > +	{ formats::RGB565, MEDIA_BUS_FMT_RGB565_1X16 },
> > +	{ formats::BGR888, MEDIA_BUS_FMT_RGB565_1X16 },
> > +	{ formats::RGB888, MEDIA_BUS_FMT_RGB565_1X16 },
> > +	{ formats::XRGB8888, MEDIA_BUS_FMT_RGB565_1X16 },
> > +	{ formats::ABGR8888, MEDIA_BUS_FMT_RGB565_1X16 },
> > +	{ formats::SBGGR8, MEDIA_BUS_FMT_SBGGR8_1X8 },
> > +	{ formats::SGBRG8, MEDIA_BUS_FMT_SGBRG8_1X8 },
> > +	{ formats::SGRBG8, MEDIA_BUS_FMT_SGRBG8_1X8 },
> > +	{ formats::SRGGB8, MEDIA_BUS_FMT_SRGGB8_1X8 },
> > +	{ formats::SBGGR10, MEDIA_BUS_FMT_SBGGR10_1X10 },
> > +	{ formats::SGBRG10, MEDIA_BUS_FMT_SGBRG10_1X10 },
> > +	{ formats::SGRBG10, MEDIA_BUS_FMT_SGRBG10_1X10 },
> > +	{ formats::SRGGB10, MEDIA_BUS_FMT_SRGGB10_1X10 },
> > +	{ formats::SBGGR12, MEDIA_BUS_FMT_SBGGR12_1X12 },
> > +	{ formats::SGBRG12, MEDIA_BUS_FMT_SGBRG12_1X12 },
> > +	{ formats::SGRBG12, MEDIA_BUS_FMT_SGRBG12_1X12 },
> > +	{ formats::SRGGB12, MEDIA_BUS_FMT_SRGGB12_1X12 },
> >  };
> >
> >  /*
> > @@ -991,11 +891,10 @@ int PipelineHandlerISI::configure(Camera *camera, CameraConfiguration *c)
> >  		 * size is taken from the sink's COMPOSE (or source's CROP,
> >  		 * if any) rectangles.
> >  		 */
> > -		const ISICameraConfiguration::PipeFormat &pipeFormat =
> > -			ISICameraConfiguration::formatsMap_.at(config.pixelFormat);
> > +		unsigned int isiCode = ISICameraConfiguration::formatsMap_.at(config.pixelFormat);
> >
> >  		V4L2SubdeviceFormat isiFormat{};
> > -		isiFormat.mbus_code = pipeFormat.isiCode;
> > +		isiFormat.mbus_code = isiCode;
>
> Unless I'm mistaken, you've kept the sensorCore, not the isiCode, in the
> formatsMap_.
>

Mmmm, not really, the formatsMap_ collects the association between an
output pixelformat and the ISI source pad format.

The sensor format is dynamically computed by
ISICameraData::getMediaBusFormat() and propagated from the sensor to the
ISI sink pad during configure().

Does this answer your question ?

> >  		isiFormat.size = config.size;
> >
> >  		ret = pipe->isi->setFormat(1, &isiFormat);
>
> --
> Regards,
>
> Laurent Pinchart


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