CameraModelImpl.java 文件源码

@Override
public void onPreviewFrame(final byte[] data, final Camera camera) {
    if (mInitAck && mDataAck) {
        mInitAck = false;
        mDataAck = false;
        previewMissedCount = 0;
        ThreadHandler.getInstance().doInBackground(new Runnable() {
            @Override
            public void run() {
                Camera.Size size = camera.getParameters().getPreviewSize();
                ByteArrayOutputStream out = new ByteArrayOutputStream();
                YuvImage yuvImage = new YuvImage(data, ImageFormat.NV21, size.width, size.height, null);
                yuvImage.compressToJpeg(new Rect(0, 0, size.width, size.height), 50, out);
                byte[] imageBytes = out.toByteArray();
                mBluetoothHandler.write(BluetoothHandler.DATA_START.getBytes());
                mPendingImageBytes = imageBytes;
            }
        });
    } else {
        previewMissedCount++;
        if (previewMissedCount > 50) {
            mInitAck = true;
            mDataAck = true;
        }
    }
}