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Previously the thumbnail buffer is destructed before even being used in
Exif. This patch moves the buffer into class Exif, so that the developer
won't need to worry about its lifetime.
Signed-off-by: Harvey Yang <chenghaoyang@chromium.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Signed-off-by: Umang Jain <umang.jain@ideasonboard.com>
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Usage of 'method' to refer to member functions comes from Java. The C++
standard uses the term 'function' only. Replace 'method' with 'function'
or 'member function' through the whole code base and documentation.
While at it, fix two typos (s/backeng/backend/).
The BoundMethod and Object::invokeMethod() are left as-is here, and will
be addressed separately.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Move the functionality for the following components to the new
base support library:
- BoundMethod
- EventDispatcher
- EventDispatcherPoll
- Log
- Message
- Object
- Signal
- Semaphore
- Thread
- Timer
While it would be preferable to see these split to move one component
per commit, these components are all interdependent upon each other,
which leaves us with one big change performing the move for all of them.
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Move the utils functionality to the libcamera/base library.
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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According to the EXIF specification, the GPS method should be UNDEFINED,
and the first 8 bytes will designate the type. However, CTS expects the
first 8 bytes to be part of the data. Remove the 8-byte encoding
designator by changing the encoding to NoEncoding to appease CTS.
This is part of the fix that allows the following CTS test to pass:
- android.hardware.cts.CameraTest#testJpegExif
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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There was a copy-paste error that caused the latitude to be set twice and
the longitude never. Fix this.
This is part of the fix that allows the following CTS test to pass:
- android.hardware.cts.CameraTest#testJpegExif
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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Now that setRational() supports setting multiple rational values, use
that in setGPSDateTimestamp and setGPSDMS which previously set every
rational manually.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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setRational was not working properly for EXIF tags in the GPS IFD due to
libexif not supporting those tags in exif_entry_initialize(). Manually
specify the size of the EXIF entry to fix this. While at it, add support
for setting multiple rationals, as that is a common use case for
rational EXIF tags.
As Rational types are no longer initialized by libexif directly, the
EXIF_TAG_{X,Y}_RESOLUTION exif tags will not have their default values
populated.
This allows the GPS altitude to be set properly, and is part of the fix
to allow the following CTS test to pass:
- android.hardware.cts.CameraTest#testJpegExif
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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Add functions for setting the following EXIF fields:
- GPSDatestamp
- GPSTimestamp
- GPSLocation
- GPSLatitudeRef
- GPSLatitude
- GPSLongitudeRef
- GPSLongitude
- GPSAltitudeRef
- GPSAltitude
- GPSProcessingMethod
- FocalLength
- ExposureTime
- FNumber
- ISO
- Flash
- WhiteBalance
- SubsecTime
- SubsecTimeOriginal
- SubsecTimeDigitized
These are in preparation for fixing the following CTS tests:
- android.hardware.camera2.cts.StillCaptureTest#testFocalLengths
- android.hardware.camera2.cts.StillCaptureTest#testJpegExif
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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The input to setOrientation is angle clockwise from the sensor
orientation, while the EXIF output values were swapped for 90
and 270 degrees.
From the EXIF spec:
6 = The 0th row is the visual right-hand side of the image, and the
0th column is the visual top.
8 = The 0th row is the visual left-hand side of the image, and the
0th column is the visual bottom.
6 should be 90 degrees clockwise, while 8 should 270 degrees clockwise.
Fix this.
As Android defines the rotation as the clockwise angle by which the
image needs to be rotated to appear in the correct orientation on the
device screen, the previous values would be correct if the input angle
was from the camera orientation. Since the correct input should be the
requested JPEG orientation, these new values are the correct ones.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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GPSProcessingMethod and UserComment in EXIF tags can be in UTF-16.
Expand setString to take an encoding when the field type is undefined.
Update callers accordingly.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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Embed a Jpeg-encoded thumbnail into Exif metadata using the Thumbnailer
class that got introduced.
Introduce a helper function in Exif class for setting the thumbnail
data.
Signed-off-by: Umang Jain <email@uajain.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
[Kieran: Add todo comment, and Compression enum]
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The jpeg components are licensed under GPL-2.0-or-later. This is an
oversight and unvoluntary. License them under the LGPL-2.1-or-later as
the rest of the camera HAL implementation.
Signed-off-by: Umang Jain <email@uajain.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Use the newly introduced utils::toAscii() utility to remove all
non-ASCII characters for EXIF_FORMAT_ASCII strings.
Signed-off-by: Umang Jain <email@uajain.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The exif object sets the byte ordering on construction, and then
during later calls re-states the byte ordering when setting values.
It could be argued that this ordering should already be known to the exif
library and is redundant, but even so we must provide it.
Ensure we are consistent in always using the same byte ordering by setting
a private class member to re-use a single value.
Reviewed-by: Umang Jain <email@uajain.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The EXIF specification defines three timezone related tags, namely
OffsetTime, OffsetTimeOriginal and OffsetTimeDigitized. However,
these are not supported by libexif (as of v0.6.21) hence, carry
the tags' positional values in our implementation until we get
this support from libexif itself.
Since these tags were introduced in EXIF specification v2.31, set
the exif version number explicitly too.
Signed-off-by: Umang Jain <email@uajain.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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The EXIF standard states that EXIF_FORMAT_UNDEFINED shall not be
terminated with NULL. The patch implements this particular detail and
pad one extra byte for EXIF_FORMAT_ASCII to null-terminate strings.
Signed-off-by: Umang Jain <email@uajain.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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The std::localtime() function isn't thread-safe, and we have no
guarantee whether other threads in the camera service may or may not
call it. Replace it with localtime_r(). This requires switching from
ctime to time.h, as there is no std::localtime_r() function.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Umang Jain <email@uajain.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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Create a Exif object with various metadata tags set, just before
the encoder starts to encode the frame. The object is passed
directly as libcamera::Span<> to make sure EXIF tags can be set
in a single place i.e. in CameraDevice and the encoder only has
the job to write the data in the final output.
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Umang Jain <email@uajain.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Provide helper classes to utilise the libexif interfaces and link
against libexif to support tag additions when creating JPEG images.
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Umang Jain <email@uajain.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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