asked 2016-05-23 14:27:49 +0200
Hi, I would like to do something simple on my Jolla: set it up so it takes a picture every n seconds.
I'm a happy Jolla user and a semi-competent Linux scripter/programmer, but haven't programmed on Sailfish before.
So I'd like to write a script (or C++ program if I have to) to do this - but how do I get the camera to take a picture from (command line | scripting language | C++) ?
answered 2016-05-23 19:44:36 +0200
As @coderus already said, QtMultimedia is your friend. Depending on your skills, QML might be even easier. Start a new QtQuick app in the Sailfish SDK. Replace the main QML file, the one with ApplicationWindow with:
import QtQuick 2.0
import Sailfish.Silica 1.0
import QtMultimedia 5.0
ApplicationWindow {
Camera {
id: camera
}
VideoOutput {
source: camera
anchors.fill: parent
}
Timer {
interval: 5000
running: true
repeat: false
onTriggered: camera.imageCapture.capture()
}
}
This will take one photo after 5 seconds. You can find it in the gallery.
I think @MarkK wants to capture a timelapse, not a single picture. Or write a program which takes a picture and quits (this one doesn't, so it can't be called several times from the command line without killing it's process).
I've done something similar on a Raspberry Pi using a bash script set to run at boot. Taking timelapses on a Jolla could be more exiting as it has a battery (survives power outtakes, unlike my poor RPi) and you can fetch the images out of it wirelessly via sftp or sshfs.
@MarkK, @jollailija I hoped the "repeat: false" was easy enough to understand. Anyway, set the repeat property of the Time to true, and it'll take pictures for as long as you leave the app running.
Fuzzillogic ( 2016-05-25 20:17:10 +0200 )editanswered 2016-05-23 16:04:31 +0200
you need to write some application utilizing QtMultimedia QCamera
Asked: 2016-05-23 14:27:49 +0200
Seen: 956 times
Last updated: May 23 '16
Maybe you can find what you need at Finding Your Phone, the Linux Way
rgrnetalk ( 2016-05-23 15:03:33 +0200 )edit