Shopify / Shopify/react-native-skia

Different Issues (Android and iOS) with useSkiaFrameProcessor

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bug
Dominant language
TypeScript
Stars
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Forks
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Avg merge
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Merged PRs (30d)
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Description

Description

Android
Samsung S8 with android 9:
Exception:
ERROR Frame Processor Error: Exception in HostFunction: Failed to convert NativeBuffer to SkImage!, js engine: VisionCamera

Some other devices, for example Pixel 9 with android 15:
Black Screen:
Image

iOS
Memory Leak, memory increase until app crashes:
https://youtube.com/shorts/kShery3nVW0

React Native Skia Version

1.11.7

React Native Version

0.76.7

Using New Architecture
  • Enabled
Steps to Reproduce

Start sample app linked below, just add useSkiaFrameProcessor to vision-camera.
Relevant dependencies:
"react-native-vision-camera": "4.6.3"
"react-native-worklets-core": "1.5.0"

Snack, Code Example, Screenshot, or Link to Repository

https://github.com/maxximee/skiaIssues

    const frameProcessor = useSkiaFrameProcessor((frame) => {
        'worklet';
        frame.render();
    }, []);
    return (
        <Camera
            style={StyleSheet.absoluteFill}
            device={device}
            isActive={true}
            frameProcessor={frameProcessor}
        />
    );

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with the linked skiaIssues sample app and its useSkiaFrameProcessor callback, using the listed React Native Skia, VisionCamera, and Worklets Core versions. Reproduce the Android NativeBuffer exception or black screen and the iOS memory increase, then verify that the affected behavior is resolved on the reported devices and platforms.

Written by the indexing model from the issue text.

Assessment

Tech stack
react-native, typescript
Domain
computer-graphics, mobile
Issue type
Bug
Difficulty
5/5
Estimated time
Over a week
Activity status
Quiet
Clarity
Needs clarification
Newbie friendliness
32/100

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