signalapp / signalapp/Signal-Android
Heic pictures black bars on the sides
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- Dominant language
- Kotlin
- Stars
- 29.4k
- Forks
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Description
Guidelines
- I have searched open and closed issues for duplicates
- I am submitting a bug report for existing functionality that does not work as intended
- This isn't a feature request or a discussion topic
Bug description
When sending a heic picture though signal 8.23.2 there will be a black bar added to the picture on both the left and the right side, which will also persist onto desktop clients or downloads of the file.
Screenshots
Device
Samsung S24 FE
Android version
16
Signal version
8.23.2
Link to debug log
No response
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
No source file or test is identified. Start by reproducing HEIC image sending on a Samsung S24 FE with Android 16 and Signal 8.23.2, then trace the attachment-processing path and compare the original, sent, desktop, and downloaded images. Done means HEIC images no longer gain black bars on either side across those outputs.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- android, kotlin
- Domain
- mobile
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Quiet
- Clarity
- Needs clarification
- Newbie friendliness
- 38/100