Guide

Music, Audiobooks and Videos on the GKD Pixel 2

By Tarik Caramanico · · 3 min read

The GKD Pixel 2 has a good screen, a speaker, a headphone jack and room for a big card, so it makes a handy music and video player too. ZyperOS has one built in, called MP4, for music, audiobooks and videos. SELECT opens it from anywhere, even from a paused game. This guide shows where files go, which ones play well, and the controls.

On this page
  1. Where files go
  2. Formats that play
  3. The shelf and Now Playing
  4. Lock the screen for a pocket
  5. Covers
  6. Headphones
  7. Sources

Where files go

WhatFolderExample
MusicMusic/, a folder per artist, one per albumMusic/Radiohead/The Bends/01 Planet Telex.mp3
AudiobooksAudiobooks/, a folder per book, an author's folder above it if you likeAudiobooks/Iain M. Banks/The Hydrogen Sonata/
VideosVideos/, a film on its own or a folder per seriesVideos/Planet Earth/01 From Pole to Pole.mp4

Send them as you send games: with the card in a computer, or on the File Transfer page over Wi-Fi or the USB cable. The adding games guide shows how.

  • An album folder put straight into Music/ moves under its artist when its tags name one. Songs in no folder at all move into Music/Singles/.
  • A book is one M4B file or a folder of MP3s, played in name order.
  • A picture named like a film, Where the Light Is.jpg, is its cover. Otherwise MP4 takes one from the video itself.

Formats that play

Music and books: MP3, M4A, M4B, MP4, AAC, FLAC, Ogg, Opus and WAV.

Video is where the Pixel 2 needs care. It has no hardware video decoder its Linux can use, so its four CPU cores decode in software:

VideoOn the Pixel 2
H.264 in an .mp4, up to 720pPlays smoothly
H.264 at 854x480 or 640x360The size to make for its 640x480 screen, at a fraction of the battery
HEVC and VP9Play up to about 480p
1080pOnly just keeps up, and drops frames when the picture moves a lot
AV1Does not play

MKV, WebM, MOV and AVI files play too, if the video inside them is one of those. For a long trip, convert films to H.264 at 854x480: they look as sharp on this screen and the battery lasts much longer.

The shelf and Now Playing

MP4 opens on a shelf of album covers, the way a console opens on its games. MENU > Show switches between music, books and videos. A on an album opens its tracks; A on a book carries on where you left it.

MP4's Now Playing screen: the album cover, the track, where in it you are and what comes next
Now Playing: the cover, the track and what comes next.
ButtonOn Now Playing
APause or play
L1 / R1The previous or next track, or a book's chapter
Left / RightBack or ahead ten seconds; held, a minute a step, then five
YThe play mode for music; the speed for a book, 0.75x to 2x
SELECTClose MP4; the music keeps playing

Leave MP4 and the music goes on behind the menus. On the home and a games shelf, L2 and R2 then skip tracks, and Zyper pops up with what plays now. While music plays, a running game is silent; pause the music and the game is heard again.

On a video, Y switches between full screen, where the controls show only when you press a button, and a view with the controls always on screen. Every video and every book remembers where you stopped, even through a power-off.

Lock the screen for a pocket

Press X on any MP4 screen while something plays. With music or a book the screen goes dark, and every button is ignored except the volume keys. On a book, that took about 6 hours of listening to 10. A video stays in sight. Hold SELECT and START together for two seconds to unlock.

Covers

An album's cover comes from its own files, or a picture in its folder. For albums with none, or only a small one, MENU > Album Art on MP4's shelf fetches a sharper cover over Wi-Fi from MusicBrainz's Cover Art Archive. It needs a USB Wi-Fi adapter on the Pixel 2.

Headphones

Wired headphones in the jack, or a USB-C headphone adapter in the port, take the sound the moment they are plugged in. The Pixel 2 has no Bluetooth, so Bluetooth headphones do not work on it.

Sources

  1. ZyperOS README, FAQ: adding music, audiobooks and videos, the video formats on the Pixel 2, Bluetooth.
  2. The ZyperOS user guide, MP4 and Audio: the shelf, Now Playing, Lock Screen, Album Art, where sound goes.