Control Media Playback

Control Media Playback

Drive a media_player (and, for music, an optional music_visualizer) and handle its transport events.

Steps

1. Resolve the source. A named track/video → resolve a source_url +

media_type (audio|video). "Play music" with no title → a default playlist.

1. Start with play_media. Spawns a media_player (state:"playing").
2. For music, add ambience with show_music_visualizer (audio-reactive).
3. Handle controls (client.interaction, §5.11) with holo.update:

• play_pause → toggle state.
• seek{position_ms} → set position_ms.
• set_volume{volume} → set volume (0–1).
• stop → state:"stopped" or holo.destroy.

1. Map speech to actions: "turn it up" → volume += 0.1; "skip 30s" →

position_ms += 30000.

Output

media_player (play_media, props per registry.json):

{ "widget_type": "media_player",
  "transform": { "anchor": "world", "billboard": true },
  "props": { "title": "Lo-fi Beats", "source_url": "https://cdn.jarvisvr.app/audio/lofi.mp3",
             "media_type": "audio", "state": "playing", "position_ms": 0,
             "duration_ms": 180000, "volume": 0.6, "loop": true },
  "interactions": ["tap","grab","resize","slider"] }

music_visualizer (show_music_visualizer):

{ "widget_type": "music_visualizer",
  "props": { "track": "Lo-fi Beats", "artist": "Chillhop", "style": "bars",
             "amplitude": [0.2,0.6,0.9,0.4,0.7], "color": "#7FE7FF", "playing": true } }

Edge cases

• Source not found → say so; offer alternatives, don't fabricate a URL.
• Nothing playing ("pause") → no-op with a gentle note.
• Volume bounds → clamp to 0.0–1.0.
• Video vs audio → video uses a larger world-anchored player; keep it out of

the user's path (defer placement to stage-agent).

• Ambient background loop (rain, café) → that's set-soundscape.
• Generate cover art / imagery → create-image.

Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

• Author: sumitaich1998
• Source: sumitaich1998/jarvisvr
• License: MIT

Install and usage instructions live in the source repository linked above.