Proposal:[camera] Add API to control JPEG compression quality #183229

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1. Bolling88 commented on Mar 4, 2026

   

   Bolling88

   on Mar 4, 2026

   Author

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   Design: setImageQuality implementation

   PR: flutter/packages#11155

   API

   /// Sets the JPEG compression quality for subsequent [takePicture] calls.
   ///
   /// The [quality] parameter must be between 1 (maximum compression) and
   /// 100 (maximum quality).
   Future<void> setImageQuality(int quality)

   Added to CameraPlatform (platform interface) and exposed via CameraController with 1–100 range validation.

   Platform implementations

   Android (Camera2) — New JpegQualityFeature that sets CaptureRequest.JPEG_QUALITY on the capture request builder. Lazily registered so users who never call setImageQuality keep the device HAL's native default.

   Android (CameraX) — CameraX only supports setJpegQuality at ImageCapture construction time, so setImageQuality unbinds the current ImageCapture and recreates it with the requested quality. Locked capture orientation is preserved across the recreation.

   iOS (AVFoundation) — When quality < 100 and format is JPEG, re-encodes the captured photo using CGImageDestination with kCGImageDestinationLossyCompressionQuality, preserving all EXIF metadata from the original capture. HEIF captures are passed through unmodified since CGImageDestination compression quality only applies to JPEG.

   Design decisions

   • No default override: Users who never call setImageQuality retain the platform's native default behavior (device HAL default on Camera2, typically 95 on CameraX, system default on iOS).
   • Post-creation setting: Modeled as a setter rather than a constructor parameter to match the pattern of other camera settings (setFlashMode, setExposureMode, etc.).
   • JPEG-only on iOS: The quality parameter maps directly to JPEG compression. HEIF uses a different encoding pipeline and is passed through unchanged.
2. puneetkukreja98

   added

   in triagePresently being triaged by the triage teamPresently being triaged by the triage team

   on Mar 6, 2026
3. puneetkukreja98

   changed the title [-][camera] Add API to control JPEG compression quality[/-] [+]Proposal:[camera] Add API to control JPEG compression quality[/+] on Mar 6, 2026
4. puneetkukreja98

   added

   c: new featureNothing broken; request for a new capabilityNothing broken; request for a new capability

   c: proposalA detailed proposal for a change to FlutterA detailed proposal for a change to Flutter

   team-ecosystemOwned by Ecosystem teamOwned by Ecosystem team

   p: cameraThe camera pluginThe camera plugin

   packageflutter/packages repository. See also p: labels.flutter/packages repository. See also p: labels.

   platform-androidAndroid applications specificallyAndroid applications specifically

   platform-iosiOS applications specificallyiOS applications specifically

   and removed

   in triagePresently being triaged by the triage teamPresently being triaged by the triage team

   on Mar 6, 2026
5. stuartmorgan-g

   added

   P2Important issues not at the top of the work listImportant issues not at the top of the work list

   triaged-ecosystemTriaged by Ecosystem teamTriaged by Ecosystem team

   on Mar 10, 2026
6. auto-submit

   closed this as completedin packages#11454on Apr 14, 2026
7. auto-submit

   added a commit that references this issue on Apr 14, 2026

   [camera_platform_interface] Add setJpegImageQuality method (#11454)

   ...

   This issue will close once commit 749abe9 is merged into the 'main' branch.

   749abe9
8. github-actions commented on Apr 28, 2026

   

   github-actionsbot

   on Apr 28, 2026 – with GitHub Actions

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   This thread has been automatically locked since there has not been any recent activity after it was closed. If you are still experiencing a similar issue, please open a new bug, including the output of flutter doctor -v and a minimal reproduction of the issue.
9. github-actions

   locked as resolved and limited conversation to collaborators on Apr 28, 2026
10. creatorpiyush

    added a commit that references this issue on Jun 10, 2026

    [camera_platform_interface] Add setJpegImageQuality method (flutter#1…

    ...

    This issue will close once commit cf2f2c8 is merged into the 'main' branch.

    cf2f2c8
11. Istiak-Ahmed78

    added a commit that references this issue on Jun 19, 2026

    [camera_platform_interface] Add setJpegImageQuality method (flutter#1…

    ...

    This issue will close once commit 02bfb74 is merged into the 'main' branch.

    02bfb74
12. Bolling88

    added 4 commits that reference this issue on Aug 26, 2026

    [camera] Add setJpegImageQuality for JPEG compression control

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    3546c40

    [camera] Add setJpegImageQuality for JPEG compression control

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    6ddce1c

    [camera] Add setJpegImageQuality for JPEG compression control

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    7d9beaa

    [camera] Add setJpegImageQuality for JPEG compression control

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    0337ec0
13. auto-submit

    added a commit that references this issue on Sep 3, 2026

    [camera] Add setImageQuality for JPEG compression control (#11155)

    ...

    1e3d875
14. victorsanni

    added 2 commits that reference this issue on Sep 9, 2026

    [camera] Add setImageQuality for JPEG compression control (flutter#11155

    ...

    4f6f8af

    [camera] Add setImageQuality for JPEG compression control (flutter#11155

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    41804a1