[英]CameraX - crash app on onPause() while recording video
if minimize app while recording video - everything all right, but once I deploy the application, ерут getting this error:如果在录制视频时最小化应用程序 - 一切正常,但是一旦我部署应用程序,就会收到此错误:
E/AndroidRuntime: FATAL EXCEPTION: CameraX-video encoding thread
Process: <pkgname>, PID: 12340
java.lang.IllegalStateException
at android.media.MediaCodec.native_dequeueOutputBuffer(Native Method)
at android.media.MediaCodec.dequeueOutputBuffer(MediaCodec.java:2698)
at androidx.camera.core.VideoCapture.videoEncode(VideoCapture.java:604)
at androidx.camera.core.VideoCapture$2.run(VideoCapture.java:348)
at android.os.Handler.handleCallback(Handler.java:873)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:214)
at android.os.HandlerThread.run(HandlerThread.java:65)
Or if I stopped recording on onPause videoCapture?.stopRecording()
, then getting this error:或者,如果我在 onPause videoCapture?.stopRecording()
上停止录制,则会出现此错误:
E/AndroidRuntime: FATAL EXCEPTION: CameraX-
Process: <pkgname>, PID: 9489
java.lang.IllegalStateException
at androidx.core.util.Preconditions.checkState(Preconditions.java:96)
at androidx.core.util.Preconditions.checkState(Preconditions.java:108)
at androidx.camera.camera2.impl.Camera.openCaptureSession(Camera.java:874)
at androidx.camera.camera2.impl.Camera.onUseCaseReset(Camera.java:625)
at androidx.camera.camera2.impl.Camera$11.run(Camera.java:611)
at android.os.Handler.handleCallback(Handler.java:873)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:214)
at android.os.HandlerThread.run(HandlerThread.java:65)
How right stop record video while minimize app???如何在最小化应用程序时正确停止录制视频???
here's my code: I collect configurations:这是我的代码:我收集配置:
CameraX.unbindAll()
getDisplayMetrics()
setPreviewConfig()
when (typeCapture) {
TYPE_IMAGE -> {
setImageCapture()
CameraX.bindToLifecycle(this, preview, imageCapture)
}
TYPE_VIDEO -> {
setVideoCapture()
CameraX.bindToLifecycle(this, preview, videoCapture)
}
}
set videoConfig and videoCapture:设置 videoConfig 和 videoCapture:
val videoCaptureConfig = VideoCaptureConfig.Builder().apply {
setLensFacing(lensFacing)
setTargetAspectRatioCustom(screenAspectRatio)
setTargetRotation(rotation)
}.build()
videoCapture = VideoCapture(videoCaptureConfig)
then I start recording video:然后我开始录制视频:
videoCapture?.startRecording(videoFile,
CameraXExecutors.mainThreadExecutor(), recordListener)
on onPause() the errors I get are described above在 onPause() 上,我得到的错误如上所述
Thanks谢谢
I had the same error when stoping the video on onPause.在 onPause 上停止视频时我遇到了同样的错误。 To solve it I added a delay before to call super.onPause()
( see: android: camera onPause/onResume issue ).为了解决这个问题,我在调用super.onPause()
之前添加了一个延迟(参见: android: camera onPause/onResume issue )。
private VideoCapture.OnVideoSavedListener videoSavedListener= new VideoCapture.OnVideoSavedListener() {
@Override
public void onVideoSaved(@NonNull File file) {
if(isRecording) {
isRecording = false;
// Do whatever you want
}
}
@Override
public void onError(@NonNull VideoCapture.VideoCaptureError videoCaptureError, @NonNull String message, @Nullable Throwable cause) {
}
};
button.setOnClickListener(v -> {
if(!isRecording){
videoCapture.startRecording(videoFile, CameraXExecutors.mainThreadExecutor(), videoSavedListener);
isRecording = true;
}else{
videoCapture.stopRecording();
}
});
@SuppressLint("RestrictedApi")
@Override
public void onPause() {
if(isRecording){
isRecording = false;
videoCapture.stopRecording();
try {
Thread.sleep(500);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
super.onPause();
}else
super.onPause();
}
Please note that video recording use case is currently marked as hidden in the API and is in a very preliminary state and subject to change.请注意,视频录制用例目前在 API 中标记为隐藏,处于非常初步的状态,可能会发生变化。
EDIT: With some devices the app still crash when calling onPause()
with the videoCapture use case set.编辑:对于某些设备,在使用 videoCapture 用例集调用onPause()
时,应用程序仍然会崩溃。 I added CameraX.unbindAll()
to remove all the use cases before calling super.onPause()
.我添加了CameraX.unbindAll()
以在调用super.onPause()
之前删除所有用例。 Then, in the onResume()
method I bind them again.然后,在onResume()
方法中我再次绑定它们。
Declare a boolean variable声明一个布尔变量
public class MyClass{
private boolean isSafe;
private boolean isPending
onPause{
isSafe=false;
}
onPostResume{
isSafe=true;
if(isPending)
methodForDoingUrAction();
}
methodForDoingUrAction(){
if(isSAfe){
//do your process
isPending=false;
}
else
isPending=true;
}
}
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