gstramer error when second video recording attemp at qml camera

[Laikas]

Hello, I thought the camera, video recording and photo taking application that I made was working without any problems, but when I try to record video through the application for the second time, I get an error like the following. Can someone help me out with this error?

I can view the videos and photos I took on the application without any problem.

Hardware features

• Rasberry Pi 3 B+
• Buildroot 2020.02.9 version
• Qt 5.15.2
• Qt Creator 4.14.0

**The code below is my test code **

import QtQuick 2.12
import QtQuick.Window 2.12
import QtMultimedia 5.12
import QtQuick.Controls 2.12
import QtQuick.Controls.Styles 1.4
import Qt.labs.folderlistmodel 2.12

//import "qrc:/TestGrid.qml"

Window {
    id: root
    width: 800
    height: 480
    visible: true
    title: qsTr("v1.0")

    property int i: 0

    //MainPage
    Item{

        id:pageMain
        width: root.width
        height: root.height
        visible: true

        x:0
        y:0
        z:0

        Camera{
            id: camera
            captureMode: Camera.CaptureVideo
            flash.mode: Camera.FlashOff

            videoRecorder{

                outputLocation: "/root"
                mediaContainer: "video/mpeg, mpegversion=(int)4"
                videoCodec: "video/mpeg, mpegversion=(int)4"
                //outputLocation: "file:///root/rec"+i+".mp4"
                resolution: "640x480"
                frameRate: 30


                muted: true

                onErrorStringChanged: {
                    console.log(("Error: "+camera.videoRecorder.errorString))
                }

                onRecorderStatusChanged: {

                    console.log("Status: "+camera.videoRecorder.recorderStatus)
                }

                onRecorderStateChanged: {

                    console.log("State: "+camera.videoRecorder.recorderState)
                }

                onMediaContainerChanged: {
                    console.log(camera.videoRecorder.mediaContainer)
                                    }

                onActualLocationChanged:{
                    console.log(camera.videoRecorder.actualLocation)
                                    }
            }
        }

        VideoOutput{
            id: videoOutput
            source: camera
            anchors.fill: parent
            focus: visible
            fillMode: VideoOutput.Stretch
        }

        //CaptureButton
        Button{
            x:50
            y:390

            palette {
                button: "#00000000"
            }

            icon: {
               icon.source="qrc:/images/camera_icon.png"
               icon.width=100
               icon.height=100
            }

            onPressed: {
                camera.captureMode= Camera.CaptureStillImage
                icon.source = "qrc:/images/pause_icon.png"
                console.log("btnCaptureOn Click");
            }

            onReleased: {
                if( camera.cameraState !== Camera.ActiveState){
                    camera.start()
                }

                camera.imageCapture.capture()

                icon.source = "qrc:/images/camera_icon.png"
                console.log("btnCaptureOff Click");
            }
        }

        //RecordButton
        Button{

            property bool stateToggle: false
            x:670
            y:390

            palette {
                button: "#00000000"
            }

            icon: {
               icon.source="qrc:/images/record_icon.png"
               icon.width=100
               icon.height=100
            }

            onClicked: {
                if(!stateToggle){

                    /*if( camera.captureMode != Camera.CaptureVideo ){
                        camera.captureMode= Camera.CaptureVideo
                    }

                    if( camera.cameraState != Camera.ActiveState){
                        camera.start()
                        console.log("girdi toogle Start")
                    }*/


                    camera.start()
                    camera.captureMode= Camera.CaptureVideo

                    camera.videoRecorder.setMetadata("Date", new Date())
                    camera.videoRecorder.setMetadata("Title", "hb"+i++)

                    mTimer.start()

                    icon.source = "qrc:/images/pause_icon.png"
                    ceylanFile.ceylanLog("Record Start");

                    stateToggle = true;
                }else{

                    camera.videoRecorder.setRecorderState(CameraRecorder.StoppedState)
                    camera.stop()
                    //i++;
                    //camera.videoRecorder.outputLocation= "file:///root/rec"+i+".mpeg"

                    icon.source = "qrc:/images/record_icon.png"
                    ceylanFile.ceylanLog("Record Stop");

                    stateToggle = false;
                }
            }
        }

        Button{
            x:10
            y:10

            palette {
                button: "#00000000"
            }

            icon: {
               icon.source="qrc:/images/file_icon.png"
               icon.width=68
               icon.height=53
            }

            onClicked: {
                pageSettings.visible=true
                pageMain.visible=false
                console.log("btnPageOpen Click");
            }
        }

        Timer{
            id:mTimer
            running: false
            interval: 1000

            onTriggered: {

                camera.videoRecorder.record()

                console.log("geldi")
                mTimer.stop()
            }
        }
    }

Below are the debug outputs of the program while it is running.

[SGaist]

Hi and welcome to devnet,

I haven't used that component yet but why don't you use the its stop method ?

[Laikas]

"camera.videoRecorder.stop()" I tried this too but again the result is the same
I've been trying different methods to fix the problem so I removed "videoRecord.stop".

[SGaist]

Did you try the Declarative Camera example to see if it shows the same behaviour ?

[Laikas]

Camera Example
This application fails while taking video.
How can I do a more detailed error analysis?
I will be glad if you tell me where to look.

In addition I got an error like this.

[SGaist]

That looks like a kernel issue.

Do you have a different camera to test ?