How Can i get all audio files in any folder from root folder?

EmadDeve20

hello everybody!
I am trying to create a music player for a car with qml on orangepi.
I need to get any audio files from a flash drive. the music files can be inside any folder, but I need to get these.

this part of my code:

MediaPlayer {
           id: player
           autoPlay: true
         
       }

       Item {
           id: playLogic

           property int index: -1
           property MediaPlayer mediaPlayer: player
           property FolderListModel items: FolderListModel {
               //folder: "./music"
               folder: "/media/usb/"
               nameFilters: ["*.mp3", "*.ogg", "*.wav"]
               showDirs: false
               showFiles: true
           }

           function init(){
               if(mediaPlayer.playbackState===1){
                   mediaPlayer.pause();
               }else if(mediaPlayer.playbackState===2){
                   mediaPlayer.play();
               }else{
                   setIndex(0);
               }
           }

           function setIndex(i)
           {
               index = i;

               if (index < 0 || index >= items.count)
               {
                   index = -1;
                   mediaPlayer.source = "";
               }
               else{
                   mediaPlayer.source = items.get(index,"filePath");
                   mediaPlayer.play();
               }
           }

           function next(){
               setIndex(index + 1);
               player.play()
           }

           function previous(){
               setIndex(index - 1);
               player.play()
           }

           Connections {
               target: playLogic.mediaPlayer

               onPaused: {
                   playpuse_img.source = puse;
               }

               onPlaying: {
                    playpuse_img.source = play;
               }

               onStopped: {
                   playpuse_img.source = play;
                   if (playLogic.mediaPlayer.status == MediaPlayer.EndOfMedia)
                       playLogic.next();
               }

               onError: {
                   console.log(error+" error string is "+errorString);
               }

               onMediaObjectChanged: {
                   if (playLogic.mediaPlayer.mediaObject)
                       playLogic.mediaPlayer.mediaObject.notifyInterval = 50;
               }
           }

       }

how can I do that?

eyllanesc

@EmadDeve20 FolderListModel will not help as it only handles one folder, and not the subfolders. You have to implement the logic with C++, a similar example can be found in the following post: https://stackoverflow.com/questions/56406220/how-do-i-populate-a-playlist-qml-type-using-a-c-model/56411623#56411623

J.Hilk

I'm sure there is a way to do it in qml/js but I don't know how.

The Qt way to do it would be with QDir - with root set as start path - and QDirIterator.

here's an c++/Qwidget example that could get you startet:
https://doc.qt.io/qt-5/qtwidgets-dialogs-findfiles-example.html

EmadDeve20

Thank you @eyllanesc and @J-Hilk .
Now I need to try for this. because I using python backend and cpp is hard for me.
any way Thanks.

eyllanesc

@EmadDeve20 If you are using python then you should point it out, but the logic is the same. I am going to translate one of the several solutions that I post

EmadDeve20

@eyllanesc Thank You So much :)

eyllanesc

@EmadDeve20 PyQt5 or PySide2?

EmadDeve20

@eyllanesc PyQt5

eyllanesc

@EmadDeve20 Demo:

import os
import sys
from pathlib import Path
import threading

from PyQt5.QtCore import (
    QCoreApplication,
    QDir,
    QDirIterator,
    QObject,
    Qt,
    QUrl,
    pyqtSignal,
    pyqtSlot,
)
from PyQt5.QtGui import QGuiApplication
from PyQt5.QtQml import QQmlApplicationEngine

CURRENT_DIRECTORY = Path(__file__).resolve().parent


class PlayerHelper(QObject):
    loaded = pyqtSignal(list)

    @pyqtSlot(str, list)
    def load(self, directory, filters):
        threading.Thread(
            target=self._load, args=(directory, filters), daemon=True
        ).start()

    def _load(self, directory, filters):
        sources = []
        it = QDirIterator(directory, filters, QDir.Files, QDirIterator.Subdirectories)
        while it.hasNext():
            sources.append(QUrl.fromLocalFile(it.next()))
        self.loaded.emit(sources)


def main():
    app = QGuiApplication(sys.argv)
    engine = QQmlApplicationEngine()

    player_helper = PlayerHelper()

    engine.rootContext().setContextProperty("playerHelper", player_helper)
    filename = os.fspath(CURRENT_DIRECTORY / "main.qml")
    url = QUrl.fromLocalFile(filename)

    def handle_object_created(obj, obj_url):
        if obj is None and url == obj_url:
            QCoreApplication.exit(-1)

    engine.objectCreated.connect(handle_object_created, Qt.QueuedConnection)
    engine.load(url)

    ret = app.exec_()

    sys.exit(ret)


if __name__ == "__main__":
    main()

import QtQuick 2.15
import QtQuick.Controls 2.15
import QtMultimedia 5.15

ApplicationWindow {
    id: root

    width: 640
    height: 480
    visible: true

    ListView {
        model: playlist
        anchors.fill: parent

        delegate: Text {
            font.pixelSize: 16
            text: source
        }

    }

    QtObject {
        id: internals

        function load() {
            playlist.clear();
            playerHelper.load("/media/usb/", ["*.mp3", "*.ogg", "*.wav"]);
        }

    }

    MediaPlayer {
        id: player

        playlist: Playlist {
            id: playlist
        }

    }

    Connections {
        function onLoaded(sources) {
            playlist.addItems(sources);
            player.play();
        }

        target: playerHelper
    }

    Component.onCompleted: internals.load()

}

EmadDeve20

@eyllanesc how can I say thank you?
i go to testing this :D

EmadDeve20

@eyllanesc sorry, can I ask my code is true?
why this is not working?

import os
import sys
from pathlib import Path
import threading

from PyQt5.QtCore import (
    QCoreApplication,
    QDir,
    QDirIterator,
    QObject,
    Qt,
    QUrl,
    pyqtSignal,
    pyqtSlot,
)
from PyQt5.QtGui import QGuiApplication
from PyQt5.QtQml import QQmlApplicationEngine

CURRENT_DIRECTORY = Path(__file__).resolve().parent


class PlayerHelper(QObject):
    loaded = pyqtSignal(list)

    @pyqtSlot(str, list)
    def load(self, directory, filters):
        threading.Thread(
            target=self._load, args=("/home/$USER/test_music/", ["*.mp3", "*.ogg", "*.wav"]), daemon=True
        ).start()

    def _load(self, directory, filters):
        sources = []
        it = QDirIterator(directory, filters, QDir.Files, QDirIterator.Subdirectories)
        while it.hasNext():
            sources.append(QUrl.fromLocalFile(it.next()))
        self.loaded.emit(sources)


def main():
    app = QGuiApplication(sys.argv)
    engine = QQmlApplicationEngine()

    player_helper = PlayerHelper()

    engine.rootContext().setContextProperty("playerHelper", player_helper)
    filename = os.fspath(CURRENT_DIRECTORY / "main.qml")
    url = QUrl.fromLocalFile(filename)

    def handle_object_created(obj, obj_url):
        if obj is None and url == obj_url:
            QCoreApplication.exit(-1)

    engine.objectCreated.connect(handle_object_created, Qt.QueuedConnection)
    engine.load(url)

    ret = app.exec_()

    sys.exit(ret)


if __name__ == "__main__":
    main()

import QtQuick 2.12
import QtQuick.Controls 2.12
import QtMultimedia 5.12

ApplicationWindow {
    id: root

    width: 640
    height: 480
    visible: true

    ListView {
        model: playlist
        anchors.fill: parent

        delegate: Text {
            font.pixelSize: 16
            text: source
        }

    }

    QtObject {
        id: internals

        function load() {
            playlist.clear();
            playerHelper.load("/media/usb/", ["*.mp3", "*.ogg", "*.wav"]);
        }

    }

    MediaPlayer {
        id: player

        playlist: Playlist {
            id: playlist
        }

    }

    Connections {
        function onLoaded(sources) {
            playlist.addItems(sources);
            player.play();
        }

        target: playerHelper
    }

    Component.onCompleted: internals.load()

}

EmadDeve20

and this is

@pyqtSlot(str, list)
    def load(self, directory="/home/$USER/test_music/", filters=["*.mp3", "*.ogg", "*.wav"]):
        threading.Thread(
            target=self._load, args=(directory, filters), daemon=True
        ).start()

not working!

EmadDeve20

I think I am a super noob!
I know no what's happening!
I know no why this does not work!

eyllanesc

@EmadDeve20 Please avoid placing I know repeatedly as it is annoying and I do not understand what you intend to achieve with that action. With those kinds of immature actions you only discourage me from helping you.

eyllanesc

@EmadDeve20 If you want to change the directory then do it in QML : playerHelper.load("/home/qt_user/test_music/", ["*.mp3", "*.ogg", "*.wav"]);, Do not use $USER since this type of variable is not recognized but you must use the user's name.

EmadDeve20

@eyllanesc I'm a little tired, I do not know what to do and I still have my work left. I apologize if I upset you. Not a good day for me.

eyllanesc

@EmadDeve20 If you are tired and apathetic then go to rest since with those actions you annoy us and you infect us with your apathy. Bye Bye.

EmadDeve20

@eyllanesc You'r right.
But I just censored my username!
In real code, I use my own username.

EmadDeve20

@eyllanesc said in How Can i get all audio files in any folder from root folder?:

If you are tired and apathetic then go to rest since with those actions you annoy us and you infect us with your apathy. Bye Bye.

you right. i thank you so much :D