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#!/bin/bash
# SPDX-License-Identifier: GPL-2.0-or-later
# Copyright (C) 2018, Google Inc.
#
# Author: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
#
# ipu3-process.sh - Process raw frames with the Intel IPU3
#
# The scripts makes use of the following tools, which are expected to be
# found in $PATH:
#
# - media-ctl (from v4l-utils git://linuxtv.org/v4l-utils.git)
# - raw2pnm (from nvt https://github.com/intel/nvt.git)
# - yavta (from git://git.ideasonboard.org/yavta.git)
# Locate the media device
find_media_device() {
local mdev
for mdev in /dev/media* ; do
media-ctl -d $mdev -p | grep -q "^driver[ \t]*ipu3-imgu$" && break
mdev=
done
if [[ -z $mdev ]] ; then
echo "IPU3 media device not found." >&2
exit 1
fi
echo $mdev
}
# Configure the pipeline
configure_pipeline() {
local enable_3a=1
local enable_out=1
local enable_vf=1
$mediactl -r
$mediactl -l "\"ipu3-imgu 0 input\":0 -> \"ipu3-imgu 0\":0[1]"
$mediactl -l "\"ipu3-imgu 0\":2 -> \"ipu3-imgu 0 output\":0[$enable_out]"
$mediactl -l "\"ipu3-imgu 0\":3 -> \"ipu3-imgu 0 viewfinder\":0[$enable_vf]"
$mediactl -l "\"ipu3-imgu 0\":4 -> \"ipu3-imgu 0 3a stat\":0[$enable_3a]"
}
# Perform frame processing through the IMGU
process_frames() {
configure_pipeline
local yavta="yavta -n $nbufs -c$frame_count"
# Save the main and viewfinder outputs to disk, capture and drop 3A
# statistics. Sleep 500ms between each execution of yavta to keep the
# stdout messages readable.
$yavta -f $IMGU_OUT_PIXELFORMAT -s $out_size "-F$output_dir/frame-out-#.bin" \
$($mediactl -e "ipu3-imgu 0 output") &
sleep 0.5
$yavta -f $IMGU_VF_PIXELFORMAT -s $vf_size "-F$output_dir/frame-vf-#.bin" \
$($mediactl -e "ipu3-imgu 0 viewfinder") &
sleep 0.5
$yavta $($mediactl -e "ipu3-imgu 0 3a stat") &
sleep 0.5
# Feed the IMGU input.
$yavta -f $IMGU_IN_PIXELFORMAT -s $in_size "-F$in_file" \
$($mediactl -e "ipu3-imgu 0 input")
}
# Convert captured files to ppm
convert_files() {
local index=$1
local type=$2
local size=$3
local format=$4
local width=$(echo $size | awk -F 'x' '{print $1}')
local height=$(echo $size | awk -F 'x' '{print $2}')
local padded_width=$(expr $(expr $width + 63) / 64 \* 64)
raw2pnm -x$padded_width -y$height -f$format \
$output_dir/frame-$type-$index.bin \
$output_dir/frame-$type-$index.ppm
}
run_test() {
IMGU_IN_PIXELFORMAT=IPU3_SGRBG10
IMGU_OUT_PIXELFORMAT=NV12
IMGU_VF_PIXELFORMAT=NV12
echo "==== Test ===="
echo "input: $in_file"
echo "output: $IMGU_OUT_PIXELFORMAT/$out_size"
echo "vf: $IMGU_VF_PIXELFORMAT/$vf_size"
process_frames
for i in `seq -f '%06.0f' 0 $(($frame_count - 1))`; do
convert_files $i out $out_size $IMGU_OUT_PIXELFORMAT
convert_files $i vf $vf_size $IMGU_VF_PIXELFORMAT
done
}
validate_size() {
local size=$1
local width=$(echo $size | awk -F 'x' '{print $1}')
local height=$(echo $size | awk -F 'x' '{print $2}')
[[ "x${size}" == "x${width}x${height}" ]]
}
# Print usage message
usage() {
echo "Usage: $(basename $1) [options] <input-file>"
echo "Supported options:"
echo "--out size output frame size (defaults to input size)"
echo "--vf size viewfinder frame size (defaults to input size)"
echo ""
echo "Where the input file name and size are"
echo ""
echo "input-file = prefix '-' width 'x' height '.' extension"
echo "size = width 'x' height"
}
# Parse command line arguments
while (( "$#" )) ; do
case $1 in
--out)
out_size=$2
if ! validate_size $out_size ; then
echo "Invalid size '$out_size'"
usage $0
exit 1
fi
shift 2
;;
--vf)
vf_size=$2
if ! validate_size $vf_size ; then
echo "Invalid size '$vf_size'"
usage $0
exit 1
fi
shift 2
;;
-*)
echo "Unsupported option $1" >&2
usage $0
exit 1
;;
*)
break
;;
esac
done
if [ $# != 1 ] ; then
usage $0
exit 1
fi
in_file=$1
# Parse the size from the input file name and perform minimal sanity
# checks.
in_size=$(echo $in_file | sed 's/.*-\([0-9]*\)x\([0-9]*\)\.[a-z0-9]*$/\1x\2/')
validate_size $in_size
if [[ $? != 0 ]] ; then
echo "Invalid input file name $in_file" >&2
usage $0
exit 1
fi
out_size=${out_size:-$in_size}
vf_size=${vf_size:-$in_size}
mdev=$(find_media_device) || exit
mediactl="media-ctl -d $mdev"
echo "Using device $mdev"
output_dir="/tmp"
frame_count=5
nbufs=7
run_test
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