Question

我有一个相机应用程序，它有两个输出目标Surface，一个用于ImageReader进行分析，另一个用于SurfaceTexture的Surface。但是，当我将两者都用作CaptureRequestBuilder的目标（或更糟糕的是，两个单独的CaptureRequests）时，每个输出流的感觉就像5-10 fps一样，效果非常差。因此，要解决此问题，我使用了ImageWriter（至少是我的想法），该图像在ImageReader的onImageAvaiableListener（）回调中将图像写入SurfaceTexture的Surface：

mImageWriter = ImageWriter.newInstance(surface, 1); 
mImageReader = ImageReader.newInstance(1280, 720, PixelFormat.RGBA_8888, 1);

 try {
        final CaptureRequest.Builder captureRequestBuilder = cameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_RECORD);
        captureRequestBuilder.addTarget(mImageReader.getSurface());
        session.setRepeatingRequest(captureRequestBuilder.build(),  new CameraCaptureCallback(), cameraThreadHandler);
} catch (CameraAccessException e) {
    reportError("Failed to start capture request. " + e);
    return;
  }

localListener= new ImageReader.OnImageAvailableListener() {
  @Override
  public void onImageAvailable(ImageReader imageReader) {
    Image image = imageReader.acquireLatestImage();
    mImageWriter.queueInputImage(image);
  }
};

mImageReader.setOnImageAvailableListener(localListener, null);

据我所知，这应该就像使用“ surface”作为目标制作单独的CapturerRequestBuilder一样。但是，在执行时，我在SurfaceTexture的updateTexImage函数中收到以下错误：

E/GLConsumer: [SurfaceTexture-1-20518-1] doGLFenceWait: error dup'ing fence fd: 9

    --------- beginning of crash
03-14 23:08:48.246 20518-20750 E/AndroidRuntime: FATAL EXCEPTION: main

    java.lang.RuntimeException: Error during updateTexImage (see logcat for details)
        at android.graphics.SurfaceTexture.nativeUpdateTexImage(Native Method)
        at android.graphics.SurfaceTexture.updateTexImage(SurfaceTexture.java:240)
        at org.webrtc.SurfaceTextureHelper.updateTexImage(SurfaceTextureHelper.java:266)
        at org.webrtc.SurfaceTextureHelper.tryDeliverTextureFrame(SurfaceTextureHelper.java:280)
        at org.webrtc.SurfaceTextureHelper.lambda$new$0(SurfaceTextureHelper.java:137)
        at org.webrtc.-$$Lambda$SurfaceTextureHelper$7YTfC0byyd0o_zI7mNhfP12Gm0Q.onFrameAvailable(lambda)
        at android.graphics.SurfaceTexture$1.handleMessage(SurfaceTexture.java:203)
        at android.os.Handler.dispatchMessage(Handler.java:102)
        at android.os.Looper.loop(Looper.java:148)
        at android.os.HandlerThread.run(HandlerThread.java:61)

有人可以向我解释该错误的含义是什么，我该如何解决？甚至可以像我一样将图像写入SurfaceTexture吗？还是我的代码错了？

使用ImageWriter将图像写入SurfaceTexture时出现“ updateTexImage期间出错”

0 个答案: