libcamera: formats: Expose PixelFormatInfo as an internal API

To prepare for storing more information about pixel formats in
PixelFormatInfo, move the class to formats.cpp and document it. The
pixel formats database is moved to the same file, and a new static
function is added to PixelFormatInfo to retrieve a PixelFormatInfo for a
PixelFormat.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>

1 files changed, 15 insertions, 0 deletions

diff --git a/src/libcamera/include/formats.h b/src/libcamera/include/formats.h
index f43bc8c0..560df07c 100644
--- a/src/libcamera/include/formats.h
+++ b/src/libcamera/include/formats.h
@@ -12,6 +12,9 @@
 #include <vector>
 
 #include <libcamera/geometry.h>
+#include <libcamera/pixelformats.h>
+
+#include "v4l2_pixelformat.h"
 
 namespace libcamera {
 
@@ -29,6 +32,18 @@ private:
 	std::map<unsigned int, std::vector<SizeRange>> data_;
 };
 
+class PixelFormatInfo
+{
+public:
+	bool isValid() const { return format.isValid(); }
+
+	static const PixelFormatInfo &info(const PixelFormat &format);
+
+	/* \todo Add support for non-contiguous memory planes */
+	PixelFormat format;
+	V4L2PixelFormat v4l2Format;
+};
+
 } /* namespace libcamera */
 
 #endif /* __LIBCAMERA_FORMATS_H__ */