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我有一個Android應用程序，拍攝沒有預覽表面的照片。我曾與棒棒堂新camera2實現這一點 - API 21分鐘undequeued緩衝區計數超過相機2
的代碼是這樣的：
final CaptureRequest.Builder jpegRequest = camera.createCaptureRequest(CameraDevice.TEMPLATE_STILL_CAPTURE);
// Render to our image reader:
jpegRequest.addTarget(imageReaderSurface);
// Configure auto-focus (AF) and auto-exposure (AE) modes:
jpegRequest.set(CaptureRequest.CONTROL_AF_MODE, CameraMetadata.CONTROL_AF_MODE_CONTINUOUS_PICTURE);
jpegRequest.set(CaptureRequest.CONTROL_AE_MODE, autoExposureModeFinal);
jpegRequest.set(CaptureRequest.JPEG_ORIENTATION, correctOrientation(context, characteristics));
if (previews == 0) {
saveImage(camera, session, jpegRequest.build());
} else {
// Take previews to dummySurface to allow camera to warm up before saving jpeg:
final CaptureRequest.Builder captureBuilder = camera.createCaptureRequest(CameraDevice.TEMPLATE_PREVIEW);
// Render to our dummy preview surface:
captureBuilder.addTarget(outputSurfaces.get(1));
// Configure auto-focus (AF) and auto-exposure (AE) modes:
captureBuilder.set(CaptureRequest.CONTROL_AF_MODE, CameraMetadata.CONTROL_AF_MODE_CONTINUOUS_PICTURE);
captureBuilder.set(CaptureRequest.CONTROL_AE_MODE, autoExposureModeFinal);
session.setRepeatingRequest(captureBuilder.build(), new CameraCaptureSession.CaptureCallback() {
int mNumCaptures;
@Override
public void onCaptureCompleted(CameraCaptureSession completedSession, CaptureRequest request, TotalCaptureResult result) {
//Log.d("mNumCaptures", String.valueOf(mNumCaptures));
if (++mNumCaptures == previews) {
try {
completedSession.stopRepeating();
saveImage(camera, session, jpegRequest.build());
//session.abortCaptures();
closeCamera(camera, looper);
} catch (CameraAccessException e) {
error("Error saving image", e);
closeCamera(camera, looper);
}
}
}
}, null);
}
我已經與Android 6 Nexus 5X保護測試這和它的作品。預覽設置爲20 - 您需要捕捉更多圖像以便相機適應光線。
我已經測試了這個代碼與銀河s5 - Android 5，它不工作。 我得到這個錯誤：分鐘undequeued緩衝計數超過
03-16 15:01:09.569: W/ArrayUtils(30646): Ignoring invalid value emboss
03-16 15:01:09.569: W/ArrayUtils(30646): Ignoring invalid value sketch
03-16 15:01:09.569: W/ArrayUtils(30646): Ignoring invalid value neon
03-16 15:01:09.599: I/CameraManager(30646): Using legacy camera HAL.
03-16 15:01:10.059: W/ArrayUtils(30646): Ignoring invalid value emboss
03-16 15:01:10.059: W/ArrayUtils(30646): Ignoring invalid value sketch
03-16 15:01:10.059: W/ArrayUtils(30646): Ignoring invalid value neon
03-16 15:01:10.089: W/ArrayUtils(30646): Ignoring invalid value emboss
03-16 15:01:10.089: W/ArrayUtils(30646): Ignoring invalid value sketch
03-16 15:01:10.089: W/ArrayUtils(30646): Ignoring invalid value neon
03-16 15:01:10.109: I/CameraDeviceState(30646): Legacy camera service transitioning to state CONFIGURING
03-16 15:01:10.109: I/RequestThread-0(30646): Configure outputs: 2 surfaces configured.
03-16 15:01:10.109: D/Camera(30646): app passed NULL surface
03-16 15:01:10.119: I/RequestThread-0(30646): configureOutputs - set take picture size to 800x480
03-16 15:01:10.209: I/CameraDeviceState(30646): Legacy camera service transitioning to state IDLE
03-16 15:01:10.219: D/info(30646): Not using a front facing camera.
03-16 15:01:10.229: D/info(30646): Sensor orientation: 90 degrees
03-16 15:01:10.229: D/info(30646): Device orientation: 0 degrees
03-16 15:01:10.229: D/info(30646): Returning JPEG orientation of 90 degrees
03-16 15:01:10.229: I/RequestQueue(30646): Repeating capture request set.
03-16 15:01:10.239: W/LegacyRequestMapper(30646): convertRequestMetadata - control.awbRegions setting is not supported, ignoring value
03-16 15:01:10.239: W/LegacyRequestMapper(30646): Only received metering rectangles with weight 0.
03-16 15:01:10.239: W/LegacyRequestMapper(30646): Only received metering rectangles with weight 0.
03-16 15:01:11.019: I/CameraDeviceState(30646): Legacy camera service transitioning to state CAPTURING
03-16 15:01:11.209: E/BufferQueueProducer(30646): [unnamed-30646-2] dequeueBuffer: min undequeued buffer count (2) exceeded (dequeued=5 undequeued=1)
03-16 15:01:14.039: I/RequestQueue(30646): Repeating capture request cancelled.
03-16 15:01:14.439: E/BufferQueueProducer(30646): [unnamed-30646-2] cancelBuffer: BufferQueue has been abandoned
03-16 15:01:14.439: E/BufferQueueProducer(30646): [unnamed-30646-2] cancelBuffer: BufferQueue has been abandoned
03-16 15:01:14.439: E/BufferQueueProducer(30646): [unnamed-30646-2] cancelBuffer: BufferQueue has been abandoned
03-16 15:01:14.439: E/BufferQueueProducer(30646): [unnamed-30646-2] cancelBuffer: BufferQueue has been abandoned
我得到即使我設置預覽爲0
同樣的錯誤我發現有關該錯誤的一些議題「分undequeued緩衝器計數超標」但所有這些都與已棄用的相機類有關。 做喲知道我是否可以在Android 5上修復此問題？
感謝