183 lines
3.7 KiB
Bash
Executable File
183 lines
3.7 KiB
Bash
Executable File
#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0-or-later
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# Copyright (C) 2018, Google Inc.
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#
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# Author: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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#
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# Capture raw frames from cameras based on the Intel IPU3
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#
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# The scripts makes use of the following tools, which are expected to be
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# executable from the system-wide path or from the local directory:
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#
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# - media-ctl (from v4l-utils git://linuxtv.org/v4l-utils.git)
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# - raw2pnm (from nvt https://github.com/intel/nvt.git)
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# - yavta (from git://git.ideasonboard.org/yavta.git)
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# Locate the sensor entity
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find_sensor() {
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local bus
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local sensor_name=$1
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bus=$(grep "$sensor_name" /sys/class/video4linux/v4l-subdev*/name | cut -d ' ' -f 2)
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if [[ -z $bus ]]; then
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echo "Sensor '$sensor_name' not found." >&2
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exit 1
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fi
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echo "$sensor_name $bus"
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}
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# Locate the media device
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find_media_device() {
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local mdev
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for mdev in /dev/media* ; do
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media-ctl -d $mdev -p | grep -q "^driver[ \t]*ipu3-cio2$" && break
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mdev=
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done
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if [[ -z $mdev ]] ; then
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echo "IPU3 media device not found." >&2
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exit 1
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fi
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echo $mdev
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}
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# Locate the CSI2 and CIO2 and get the sensor format
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parse_pipeline() {
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local cio2_queue
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local resolution
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local sensor=$1
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read cio2_queue bus_format sensor_size <<< $($mediactl -p | awk "
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/^- entity [0-9]*:/ {
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sensor=0;
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}
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/^- entity [0-9]*: $sensor/ {
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sensor=1;
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}
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/^[ \t]*(stream:0)?\[fmt:/ {
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if (sensor) {
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gsub(\".*fmt:\", \"\");
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gsub(\"[] ].*\", \"\");
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sub(\"/\", \" \");
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sub(\"@[0-9]+/[0-9]+\", \"\");
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format=\$0;
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}
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}
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/^[ \t]*->/ {
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if (sensor)
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cio2=substr(\$3, 0, 1);
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}
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END {
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print cio2 \" \" format;
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}
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")
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ipu3_csi2="ipu3-csi2 $cio2_queue"
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ipu3_capture="ipu3-cio2 $cio2_queue"
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sensor_width=$(echo $sensor_size | cut -d 'x' -f 1)
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sensor_height=$(echo $sensor_size | cut -d 'x' -f 2)
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echo "Using device $mdev with IPU3 CIO2 queue $cio2_queue"
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}
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# Configure the pipeline
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configure_pipeline() {
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local format="fmt:$bus_format/$sensor_size"
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echo "Configuring pipeline for $sensor in $format"
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$mediactl -r
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$mediactl -l "\"$sensor\":0 -> \"$ipu3_csi2\":0[1]"
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$mediactl -l "\"$ipu3_csi2\":1 -> \"$ipu3_capture\":0[1]"
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$mediactl -V "\"$sensor\":0 [$format]"
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$mediactl -V "\"$ipu3_csi2\":1 [$format]"
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}
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# Capture frames
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capture_frames() {
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local file_op
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local frame_count=$1
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local ipu3_format=IPU3_${bus_format/_1X10/}
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local save_file=$2
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if [[ $save_file -eq 1 ]]; then
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file_op="--file=/tmp/frame-#.bin"
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fi
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yavta -c$frame_count -n5 -I -f $ipu3_format -s $sensor_size $file_op \
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$($mediactl -e "$ipu3_capture")
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}
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# Convert captured files to ppm
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convert_files() {
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local frame_count=$1
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local format=${bus_format/_1X10/}
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local padded_width=$(expr \( $sensor_width + 49 \) / 50 \* 50)
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echo "Converting ${sensor_width}x${sensor_height} (${padded_width}x${sensor_height})"
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for i in `seq -f '%06.0f' 0 $(($frame_count - 1))`; do
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ipu3-unpack /tmp/frame-$i.bin /tmp/frame-$i.raw
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raw2pnm -x$padded_width -y$sensor_height -f$format /tmp/frame-$i.raw /tmp/frame-$i.ppm
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done
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}
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# Print usage message
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usage() {
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echo "Usage: $1 [options] sensor-name"
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echo "Supported options:"
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echo "-c,--count n Number of frame to capture"
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echo "--no-save Do not save captured frames to disk"
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}
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# Parse command line arguments
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frame_count=10
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save_file=1
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while (( "$#" )) ; do
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case $1 in
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-c|--count)
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frame_count=$2
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shift 2
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;;
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--no-save)
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save_file=0
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shift
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;;
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-*)
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echo "Unsupported option $1" >&2
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usage $0
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exit 1
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;;
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*)
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break
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;;
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esac
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done
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if [[ $# -ne 1 ]] ; then
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usage $0
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exit 1
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fi
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sensor_name=$1
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sensor=$(find_sensor $sensor_name) || exit
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mdev=$(find_media_device) || exit
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mediactl="media-ctl -d $mdev"
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parse_pipeline $sensor
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configure_pipeline
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capture_frames $frame_count $save_file
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[[ $save_file -eq 1 ]] && convert_files $frame_count
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