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When converting the input image to a subsampled YUV format, chroma
components are averaged horizontally to emulate the VSP internal
conversion to YUV444. If the image is subsequently cropped to emulate
the RPF cropping, the edge chroma values end up effectively taking into
account pixels outside of the crop rectangle. This doesn't match the
hardware mode of operation which crops the image when reading it through
DMA, before performing any other operation.
Fix this by cropping the image just after reading it, before format
conversion.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Introduce a new utility which prefixes a monotonic timestamp rendered in the
same format as the kernel logs to all lines fed in through stdin.
Signed-off-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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Standardize on the usage of SPDX tags. No change in copyright is
included.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
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Add SPDX tags to describe license and copyright information to all files
in the repository.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
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Add a new histogram type HGT to be able to compute HGT histogram frame
from RGB data. This is needed to test the HGT module together with the
HST module in the VSP pipeline to convert a image from RGB to HSV.
This also includes a new command line option to be able to specify the
user configuration of the HGT hue areas. This is needed to verify that the
HGT driver can operate with different hue area configurations.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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The VSP hardware can compute both 1D (HGO) and 2D (HGT) histograms. The
gen-image utility needs to know which histogram type it should generate
a reference frame for. Add a command line option which allows the user
to set the type.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Allow the user to specify an input crop in the form (X,Y)/WxH
Signed-off-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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Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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When the input format is YUV, subsample the chroma during RGB to YUV
conversion based on the YUV format parameters. This matches the RGB to
YUV conversion performed to generate the test input frame fed to the
RPF.
A better fix would be to add support for unpacking all RGB and YUV
formats instead of converting the .pnm reference frames.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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gen-image averages consecutive chroma values when subsampling chroma
horizontally. This matches the hardware behaviour, but isn't desired to
produce test input frames in subsampled formats as otherwise the
hardware will average the values a second time in the RPF to interpolate
missing chroma components.
Add a -C argument to disable chroma averaging on output, to be used to
generate test input frames.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Replace the -y argument with a more flexible -i argument that allows
specifying the input format. This is useful to generate reference frames
based on an RGB pipeline input format that uses less than 8 bits per
pixel.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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The tool is used to generate test images in a variety of formats from a
PNM input image.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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