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generated by cgit v1.2.1 (git 2.18.0) at 2025-03-01 12:19:16 +0000
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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-capture.sh - Capture raw frames from cameras based on the Intel IPU3
#
# The scripts makes use of the following tools, which are expected to be
# executable from the system-wide path or from the local directory:
#
# - 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 sensor entity
find_sensor() {
	local bus
	local sensor_name=$1

	bus=$(grep "$sensor_name" /sys/class/video4linux/v4l-subdev*/name | cut -d ' ' -f 2)
	if [[ -z $bus ]]; then
		echo "Sensor '$sensor_name' not found." >&2
		exit 1
	fi

	echo "$sensor_name $bus"
}

# Locate the media device
find_media_device() {
	local mdev

	for mdev in /dev/media* ; do
		media-ctl -d $mdev -p | grep -q "^driver[ \t]*ipu3-cio2$" && break
		mdev=
	done

	if [[ -z $mdev ]] ; then
		echo "IPU3 media device not found." >&2
		exit 1
	fi

	echo $mdev
}

# Locate the CSI2 and CIO2 and get the sensor format
parse_pipeline() {
	local cio2_queue
	local resolution
	local sensor=$1

	read cio2_queue bus_format sensor_size <<< $($mediactl -p | awk "
	/^- entity [0-9]*:/ {
		sensor=0;
	}

	/^- entity [0-9]*: $sensor/ {
		sensor=1;
	}

	/^[ \t]*(stream:0)?\[fmt:/ {
		if (sensor) {
			gsub(\".*fmt:\", \"\");
			gsub(\"[] ].*\", \"\");
			sub(\"/\", \" \");
			sub(\"@[0-9]+/[0-9]+\", \"\");
			format=\$0;
		}
	}

	/^[ \t]*->/ {