Music

[Krimsonknite]

Music Player that provides a synchronized listening experience for users connected to the audio and chat room.

Support:

• [ ] Playback speed
• [ ] Pause/Play
• [ ] Synchronize times for all users
• [ ] Consume YouTube link for song request
• [ ] Consume Spotify link for song request
• [ ] Resize player
• [ ] Chatroom
• [ ] Chatroom - Userlist

[Krimsonknite]

• [ ] Functionality for a music queue.
• [ ] All users can add songs to the queue.
• [ ] Songs can be deleted from the queue.
• [ ] Songs can be skipped.
• [ ] Songs can be rearranged in the queue.

[Krimsonknite]

Local Player:

• Database (holds .mp3 / .flac)
• Structured data (object, properties (metadata))
• Load song onto database
• Player (Play/Pause/Skip/Queue/Playback Speed/Loop)(Timesync)
• Page (MUSIC page)
• Chat

Online Player:

• YouTube
• Spotify
• Soundcloud

Uploads:

• hash the file ( identify if 1:1 match - if match retrieve , if not upload then retrieve )

Extended Features

• from structuredData (AI STEM Split / Genre Classification - audio finger printing / short term or long term song storage on server / preloading songs during current song / background ai processing of songs / listener categorization - song recommendations from recent history , from entire history , from set genre )
• from stemSplit ( vocal swap / ai audio model training - e.g. train lead singer into a model / )
• USER ID ( music profile, songs requested , favorite genres )

[Krimsonknite]

• Track
• Track ID (e.g. 11dFghVXANMlKmJXsNCbNl - find good generation scheme / algo)

GetTrack() {}

• album id
• album URI
• duration_ms
• International Standard Recording Code (ISRC) - Unique identification of sound and music video recordings
• href (track Web API Endpoint)
• track id
• track name
• track popularity
• track uri
• is_local

[Krimsonknite]

Spotify: Get Playback State

device: the device playing back music (my audio driver?)

• id
• name
• type (e.g. computer)
• volume_percent

Flup: Serverside Player

• currentSong
• songProgress
• repeatState (if true, replay the song when it ends)
• shuffleState (if true, shuffle the playlist / choose random song in playlist to play next)
• skipCurrentValue
• skipThreshold (if skipCurrentValue > skipThreshold, skip the song)
• playlistObject (list of current songs in queue, each song is an object)
• parseSongObject()

Client to Server:

• syncUserToServer (client loops at <5,20,30,60,120> seconds for requesting songProgress from serverside player. if userSongProgress > songDelta, then perform resyncUserToServer )

Clientside User

• userID
• userName
• userPrivs (set volume, skip song, ...)
• userTimesyncStatus (object, used to track the user's synchronization with song)

[Krimsonknite]

Example of fetch

fetch():

cURL: curl --request GET \ --url https://api.spotify.com/v1/me/player \ --header 'Authorization: Bearer 1POdFZRZbvb...qqillRxMr2z'

[Krimsonknite]

WebSockets:

• two-way interactive communication session
• send messages to a server and receive event-driven responses without having to poll the server for a reply
• Interfaces (WebSocket, CloseEvent, MessageEvent)

WebSocket Interface:

• WebSocket.send() - enqueues data - increments bufferedAmount - if buffer is full it closes the socket
• • Exception handling - CONNECTING > exception, CLOSING/CLOSED - silent discard
• • send data - stringified json CloseEvent Interface: MessageEvent Interface:

[Krimsonknite]

Audio Player: https://svelte-audio-player.vercel.app/docs