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libcamera: bayer_format: Add PixelFormat conversion helpers to BayerFormat class

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Add BayerFormat::toPixelFormat() and BayerFormat::fromPixelFormat() helper
functions to convert between BayerFormat and PixelFormat types.

Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
[Kieran: Minor checkstyle fix]
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
This commit is contained in:
Naushir Patuck 2021-11-01 09:15:06 +00:00 • committed by Kieran Bingham
parent 16ab13eaa9
commit 91bd175c8f
2 changed files with 33 additions and 0 deletions
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4
include/libcamera/internal/bayer_format.h
View file

@ -10,6 +10,8 @@
#include <stdint.h>
#include <string>
#include <libcamera/pixel_format.h>
#include "libcamera/internal/v4l2_pixelformat.h"
namespace libcamera {
@ -50,6 +52,8 @@ public:
V4L2PixelFormat toV4L2PixelFormat() const;
static BayerFormat fromV4L2PixelFormat(V4L2PixelFormat v4l2Format);
PixelFormat toPixelFormat() const;
static BayerFormat fromPixelFormat(PixelFormat format);
BayerFormat transform(Transform t) const;
Order order;

29
src/libcamera/bayer_format.cpp
View file

@ -307,6 +307,35 @@ BayerFormat BayerFormat::fromV4L2PixelFormat(V4L2PixelFormat v4l2Format)
return BayerFormat();
}
/**
* \brief Convert a BayerFormat into the corresponding PixelFormat
* \return The PixelFormat corresponding to this BayerFormat
*/
PixelFormat BayerFormat::toPixelFormat() const
{
const auto it = bayerToFormat.find(*this);
if (it != bayerToFormat.end())
return it->second.pixelFormat;
return PixelFormat();
}
/**
* \brief Convert a PixelFormat into the corresponding BayerFormat
* \return The BayerFormat corresponding to this PixelFormat
*/
BayerFormat BayerFormat::fromPixelFormat(PixelFormat format)
{
const auto it = std::find_if(bayerToFormat.begin(), bayerToFormat.end(),
[format](const auto &i) {
return i.second.pixelFormat == format;
});
if (it != bayerToFormat.end())
return it->first;
return BayerFormat();
}
/**
* \brief Apply a transform to this BayerFormat
* \param[in] t The transform to apply