Convert youtube videos to audios

• Account creation
• Login to your account
• Search for youtube videos
• Download/convert youtube videos to audios
• Addition to audio library
• Deleting from audio library

VideoConverterLSM/app/src/main/java/com/mobiledevices/videoconverter
.
├── core
│   ├── dao
│   │   └── FirestoreRepository.kt
│   ├── service
│   │   └── MusicService.kt
│   ├── utils
│   │   ├── PasswordUtils.kt
│   │   ├── SessionManager.kt
│   │   └── UserManager.kt
│   └── validation
│       └── Validator.kt
├── model
│   ├── Music.kt
│   └── User.kt
├── ui
│   ├── adapter
│   │   ├── MusicHomeAdapter.kt
│   │   └── MusicLibraryAdapter.kt
│   ├── application
│   │   ├── ApplicationActivity.kt
│   │   ├── HomeFragment.kt
│   │   ├── LibraryFragment.kt
│   │   └── SettingsFragment.kt
│   └── connection
│       ├── ConnectionActivity.kt
│       ├── LoginFragment.kt
│       ├── SignupFragment.kt
│       └── WelcomeFragment.kt
└── viewModel
    ├── LoginViewModel.kt
    ├── MusicViewModel.kt
    ├── SettingsViewModel.kt
    ├── SharedViewModel.kt
    └── SignupViewModel.kt

In the Core, we find:

• the DAO branch with the database, created on Firestore, which allows it to be stored directly on the Cloud
• the Service branch which allows you to retrieve Youtube search results
• the Utils branch to hash the password and manage connection/disconnection
• the Validation branch to check usernames and passwords when login in

In the Model, we find: the initializing the two tables: Music and User

In the UI, we find:

• the Adapter branch to manage interactions and displays for the RecyclerView in the Home and Library fragment
• the Application branch to manage the activity of the application once connected and the various associated fragments (home, library, settings)
• the Connection branch to manage the activity of the application in the connection part and the different associated fragments (welcome, login, signup)

In the ViewModel, we find: the entire front end part for the different pages of the application (login, signup, music, settings, library)

When the user open the app, he is directly on the Welcome Page, on which he can choose to Login or to Signup.

On the Signup Page, he has to fill different data such as his username, email, password and a confirmation of his password.

On the Login Page, he can directly connect with his username and password, that must have been chosen previously.

Once the user is connected inside the app, he is directed to the Home Page. He can use the "search music" button, on which he can type his research. The 6 first results from Youtube will be displayed on the page. Then, he can download the videos he wants.

All these videos will be added on the Library page, which gathers all the downloads videos, converted to audio. On this same page, the user has the possibility to delete the audio, by clicking on the bin icon. That is also where there is the button to listen to the song.

The last page is the Setting Page, in which the user can change his password, clear his search and logout of his account.

• Front-End: Kotlin
• Back-End: Kotlin, Python, Firestore, SQL

We worked in a team of three people. We used Github to share the progress of our project. We separated front-end development and back-end development for the basic actions at first and then, we gathered them. After that, we implemented few improvements.

• Gradle
• Android Studio with its SDK
• Python 11

To launch the app in Android Studio, we need the prerequisites above. It is not possible yet to install it through the Play Store but you can download the APK file.

We implemented unit tests to test the different functionalities separately. To launch them, we just have to go to the test class and run it:

app/src/test/java/com/mobiledevices/videoconverter/ExampleUnitTest.kt

app/src/test/java/com/mobiledevices/videoconverter/MusicTest.kt

app/src/test/java/com/mobiledevices/videoconverter/UserTest.kt

We're facing an SSL certificate issue with an emulator in our mobile app, which is intended for downloading YouTube videos as audio. This problem involves a conflict between PyTube, a Python library we use for downloading YouTube videos, and the emulator.

Sometimes, the connection test fails, even if the user is connected. In this case, you have to uncomment the return in isConnected() method in the HomeFragment.kt file.

The main improvement we want to make is to be able to download the audio from youtube on the device directly. Indeed, in the current version of the app, the audio is playing on the youtube app from the library.

This application aims to be used on Android devices.

• [Mathis]
• [Shaina BAKILI MUMBUKU]
• [Lucie GALLOIS]