# Media3 Video Playback

> Compact skill for Media3 1.10.1 video surfaces, aspect ratio, first frame, HDR, PiP, and feed-safe handoff.

- **Type:** Skill
- **Install:** `agentstack add skill-sunnat629-android-media-pack-media3-video-playback`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [sunnat629](https://agentstack.voostack.com/s/sunnat629)
- **Installs:** 0
- **Category:** [Content & Media](https://agentstack.voostack.com/c/content-and-media)
- **Latest version:** 0.1.0
- **License:** Apache-2.0
- **Upstream author:** [sunnat629](https://github.com/sunnat629)
- **Source:** https://github.com/sunnat629/android-media-pack/tree/main/.skills/media/playback/media3-video-playback

## Install

```sh
agentstack add skill-sunnat629-android-media-pack-media3-video-playback
```

Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent.

## About

## Trigger

Use for video rendering bugs, blink/flicker, wrong crop, first-frame handoff, PiP, HDR, or fullscreen behavior.

## Rules

- Start with `streaming-media-architecture` for ownership, KMP split, preload window, and telemetry.
- Pin Media3 to `1.10.1` through the version catalog.
- Keep Media3 APIs in Android source sets; expose KMP-safe state/events upward.
- Use `onRenderedFirstFrame` plus media identity to remove placeholders.
- Do not change surface type while the player is attached.
- `SurfaceView` is **PREFERRED** everywhere, including inline scrollers. Fall back to `TextureView` only when `SurfaceView` cannot satisfy the requirement, for example smooth scroll or transition animation on pre-API 24 devices. `TextureView` costs more power, has weaker frame timing, and cannot show HDR or secure (DRM) output.
- Aspect comes from `onVideoSizeChanged`, not thumbnail size.

## Example

```kotlin
val readyForVideo = state.mediaUri == uri && state.renderedMediaUri == uri
// thumbnail visible while !readyForVideo
```

## Related

- `media3-compose-ui-material3`
- `media3-analytics-telemetry`
- `streaming-media-architecture`

## Source & license

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

- **Author:** [sunnat629](https://github.com/sunnat629)
- **Source:** [sunnat629/android-media-pack](https://github.com/sunnat629/android-media-pack)
- **License:** Apache-2.0

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

## Pricing

- **Free** — Free

## Security capabilities

Automated source analysis of v0.1.0 — what this tool can access:

- **Network access:** no
- **Filesystem access:** no
- **Shell / process execution:** no
- **Environment & secrets:** no
- **Dynamic code execution:** no

*"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.*


## Versions

- **0.1.0** — security scan: passed — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/skill-sunnat629-android-media-pack-media3-video-playback
- Seller: https://agentstack.voostack.com/s/sunnat629
- Browse the marketplace: https://agentstack.voostack.com/browse

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