[camera] Taking pictures is too slow on some devices #84957
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Hi @nero-angela flutter doctor -v[✓] Flutter (Channel stable, 2.2.2, on Microsoft Windows [Version 10.0.19043.1055], locale en-US)
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• SM M025F (mobile) • R9ZR205XX0A • android-arm • Android 11 (API 30)
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! Doctor found issues in 1 category.Can you please share Android version you're running? Are you using stock firmware or custom rom? |
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Hi @TahaTesser My android version is Android 9 (API 28) and I am using the S8 after factory reset. flutter doctor -vflash_test.mp4 |
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TahaTesser
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e: device-specific
Also reproducible on:
(This is currently only my own device ... I will update this list, when I can go back to the office, and have more real test devices available ...) flutter doctor -v[✓] Flutter (Channel stable, 2.2.2, on macOS 11.4 20F71 darwin-arm, locale en-DE)
• Flutter version 2.2.2 at /Users/davidwimmer/flutter
• Framework revision d79295af24 (2 weeks ago), 2021-06-11 08:56:01 -0700
• Engine revision 91c9fc8fe0
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[✓] Android toolchain - develop for Android devices (Android SDK version 30.0.3)
• Android SDK at /Users/davidwimmer/Library/Android/sdk
• Platform android-30, build-tools 30.0.3
• Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
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[✓] ... all my IDEs ...
[✓] Connected device (2 available)
• ONEPLUS A6003 (mobile) • b0a181c6 • android-arm64 • Android 10 (API 29)
• Chrome (web) • chrome • web-javascript • Google Chrome 91.0.4472.114 |
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I find the same problem in my device (Xiaomi MI 8, Android 10). The flash light terminates before the picture is taken, even with torch FlashMode on. |
TahaTesser
changed the title
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This problem is also reproducible on these devices:
The flash light turns off in the moment the photo is taken. |
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any update on this? same with Xiaomi Redmit Note 7 |
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Same problem with Google Pixel 4a (Android 12), Nokia 8.2 (Android 11). It seems like it takes long before the camera finds it's focus. |
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Independently of the flash, I too find the takePicture() method is rather slow (on my Pixel 4a 5G, same on Pixel 4a). With a very basic example, it takes over 3 seconds. You can find more detailed information below. codeconsole output` flutter doctor -v` |
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what's the best way to debug this and determine a fix? do we play around with AF or AE setup? |
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you can change the resolution to ResolutionPreset.medium. This are list of available values that you can experiment with /// 352x288 on iOS, 240p (320x240) on Android and Web /// 480p (640x480 on iOS, 720x480 on Android and Web) /// 720p (1280x720) /// 1080p (1920x1080) /// 2160p (3840x2160 on Android and iOS, 4096x2160 on Web) /// The highest resolution available. |
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I can report same behavior on flutter doctor -v |
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I faced this issue when I upgrade camera package from 0.6.3+4. That version was lightning fast compared to new versions(>=0.7.0) ps: observed in Galaxy A21s (Android 11) and Redmi Note 10 Pro (Android 12) |
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Same issue Pixel 5a (Android 12), camera package version is 0.9.8+1 |
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I think the problem is the Tested on a Pixel 6 and Samsung Galaxy S9. |
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Just like @Szugalew suggested I skipped the runPictureAutoFocus() and runPrecaptureSequence() in Camera.java and just running the takePictureAfterPrecapture() directly. This resulted in instant picture. Thanks sir. |
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any update? |
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We ran into a pretty similar issue. Users report that taking the picture takes too long, and sometimes the image is captured with a delay, not when they pushed the button. Can anybody provide more clear steps on how to edit and use the edited Edit: Tested on Samsung S22 Ultra and Pixel 5 |
flutter-triage-bot
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Building on @DmitrySikorsky's and @Szugalew's solution: This results in a sped up process. something like 0.5s-1s instead of 3s-4s |
It seems to only speed up the first photo. As soon as I want to take a 2nd photo, it is very slow again. Edit: Actually, it should be like this: await _controller!.setFocusMode(FocusMode.locked);
await _controller!.setExposureMode(ExposureMode.locked);
final picture = await _controller!.takePicture();
await _controller!.setFocusMode(FocusMode.auto);
await _controller!.setExposureMode(ExposureMode.auto); |
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Same issue on my Huawey P30 ...no fix? |
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Just mentioning that this is an issue for Samsung S9+ also (android 10), one ui 2.5. Rather old, the picture takes approx 2-5 sec to snap. |
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I am having this same issue on Galaxy s22. This is universal enough we really need a fix. I don't mind modifying the java for a solution but I can see the code is bypassing features and efficiency in the name of a quick image capture. A worthwhile trade but not a long term solution. |
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Same. When using this to take an image, then take another straight after I'm getting inconsistent results. Sometimes image 1 takes 1 second, other times 3 seconds. Image 2 can also take 1-3 seconds. Currently not a usable solution so please investigate asap. |
In this case exposure is not getting reset. and I'm getting this logs in console
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Pinning |
This definitely results in the camera capture being much faster for me when tested on Pixel 7. But it does have to be this exact version (0.10.8+3 of camera_android). More recent versions of camera_android than that are also really slow. |
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I have probably found the source of the autofocus timeout bug that delays image capture, but cannot verify. In this diff of changes between 0.10.8+3 and 0.10.8+4, there is a typo on line 34. There should be
instead of
Ping commit author @stuartmorgan |
Fixes a typo introduced during a testability refactor that caused the capture state machine to read the wrong value for autofocus state, breaking the state machine. Fixes flutter/flutter#135554 Part of flutter/flutter#84957
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@altermark Thanks for finding that mistake! I have a PR up to fix it. (This is not expected to fix the original issue here, since the issue was filed far earlier than that mistake was introduced.) |
Fixes a typo introduced during a testability refactor that caused the capture state machine to read the wrong value for autofocus state, breaking the state machine. Fixes flutter/flutter#135554 Part of flutter/flutter#84957
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Hello guys, Im seeing long time in taking a pic on xiaomi mi lite 5g android 13 (almost 3sec). What is the latest / most effective workaround for this, if any? |
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@delfme as |
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Thx @Tienisto, just checked the fix on my xiaomi mi lite 5g and it works 👍 |
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Also seeing delay in Samsung M31, Samsung M31s, Poco F4 when calling takePicture(). Please solve this issue as this issue has been lingering for almost 2.5 years now and for a basic and necessary package like camera, really limits the potential for flutter apps. |
Fixes a typo introduced during a testability refactor that caused the capture state machine to read the wrong value for autofocus state, breaking the state machine. Fixes flutter/flutter#135554 Part of flutter/flutter#84957
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This issue should be fixed in the CameraX implementation of the camera plugin, so please try it out! If you find a similar issue with that implementation (or any other issues), please feel free to file a separate issue. |
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@camsim99 camera: 0.10.5+2
camera_android_camerax: 0.6.1+1 |
camsim99
moved this from Camera issues to track
to camera_android issues solved by camera_android_camerax
in Android Camera Re-write
and others
Hi, I'm making a camera app with samsung s8 device and camera package.
However, there is a problem with the shooting speed being too slow on the Android device.
It takes about 0.5 to 1.5 second to shoot. (I used camera/example for testing)
The shooting speed on the Android(S8) is too slow, so even if I shoot with the flash on, the flash effect is not applied because the shooting is completed after the flash is off.
I wonder if it's a fundamental problem with the package, or it's a problem that only occurs on my S8.
Steps to Reproduce
Expected results:
Photo with flash effect applied.
Actual results:
Photos without flash effect applied.
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