We build libcamera with -Wno-unused-parameter and this doesn't cause
much issue internally. However, it prevents catching unused parameters
in inline functions defined in public headers. This can lead to
compilation warnings for applications compiled without
-Wno-unused-parameter.
To catch those issues, remove -Wno-unused-parameter and fix all the
related warnings with [[maybe_unused]].
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Rename Camera::name() to camera::id() to better describe what it
represents, a unique and stable ID for the camera. While at it improve
the documentation for the camera ID to describe it needs to be stable
for a camera between resets of the system.
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
This patch improves the colour information recorded in DNG files using
the ColourCorrectionMatrix metadata for the image. Note that we are
not supplying a full calibration using two illuminants, nonetheless
the single matrix here appears to be respected by a number of tools.
Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
If the EXIF directory is empty due to no metadata being available tools
such as tiffinfo complains that the directory is malformed.
TIFFFetchDirectory: Sanity check on directory count failed, this is probably not a valid IFD offset.
TIFFReadCustomDirectory: Failed to read custom directory at offset 0.
Always record the creation time in the EXIF directory instead of adding
complexity to skip creating the EXIF directory if there is no metadata
to record. This ensures there are at least some entries in the EXIF
directory and that makes tiffinfo happy.
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Add support for the Bayer formats produced on the IPU3. The format uses
a memory layout that is hard to repack and keep the 10-bit sample size,
therefore scale the samples to 16-bit when creating the scanlines.
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
The EXIF IFD is incorrectly chained to IFD 0 in addition to being a
referenced as a sub IFD through the EXIFIFD tag. While the libtiff API
doesn't clearly document why this happens, inspection of the
TIFFWriteDirectory() source code show that the function treats the IFD
being written as containing an image, which isn't correct for the EXIF
IFD. Use TIFFWriteCustomDirectory() instead, which fixes the problem.
The resulting DNG file can now be opened with darktable in addition to
rawtherapee.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
While the DNG specification supports greyscale ("BlackIsZero") for
thumbnails, RawTherapee seems to have trouble reading them. Generate
thumbnails in RGB instead (but still with greyscale content, to avoid
having to interpolate colour components).
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Populate the DNG black level, ISO speed rating and exposure time from
metadata. The ISO speed rating and exposure time are standardized as
EXIF tags, not TIFF tags, and require a separate EXIF IFD.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Generate a greyscale, 1/16 resolution thumbnail and add it to the DNG
file. This requires shuffling the RAW image generation as the thumbnail
has to be stored in the main IFD as per the DNG and TIFF/EP
specifications.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Name arguments to the FormatInfo::packScanline function pointer to make
it easier to understand its usage when reading the function declaration.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Add an initial DNG file writer. The writer can only deal with a small
set of pixel formats. The generated file is consumable by standard
tools. The writer needs to be extended to write more metadata to the
generated file.
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Niklas Söderlund
Laurent Pinchart
David PlowmanandLaurent Pinchart