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libcamera: v4l2_subdevice: Expose media bus format info as internal API

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The V4L2SubdeviceFormatInfo structure, internal to the
v4l2_subdevice.cpp compilation unit, contains information about media
bus formats that will be useful in other parts of libcamera. To prepare
for this, expose the structure in the v4l2_subdevice.h header and turn
it into a class with a similar design as PixelFormatInfo.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
This commit is contained in:
Laurent Pinchart
2024-02-26 04:50:15 +02:00
parent 1a1cf4a2c1
commit d60fb23258
2 changed files with 76 additions and 31 deletions
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include/libcamera/internal/v4l2_subdevice.h
+13
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@@ -29,6 +29,19 @@ namespace libcamera {
class MediaDevice;
class MediaBusFormatInfo
{
public:
bool isValid() const { return code != 0; }
static const MediaBusFormatInfo &info(uint32_t code);
const char *name;
uint32_t code;
unsigned int bitsPerPixel;
PixelFormatInfo::ColourEncoding colourEncoding;
};
struct V4L2SubdeviceCapability final : v4l2_subdev_capability {
bool isReadOnly() const
{