Attempts to allocate and register the given number of preview callback buffers. - Android Camera

Android examples for Camera:Camera Preview

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Description

Attempts to allocate and register the given number of preview callback buffers.

Demo Code


//package com.java2s;
import java.lang.reflect.Method;

import android.hardware.Camera;

public class Main {
    static Method addPreviewBufferMethod;

    public static boolean createPreviewCallbackBuffers(Camera camera,
            int nbuffers) {
        if (addPreviewBufferMethod == null)
            return false;

        Camera.Size previewSize = camera.getParameters().getPreviewSize();

        int bufferSize = previewSize.width * previewSize.height * 3 / 2;
        for (int i = 0; i < nbuffers; i++) {
            byte[] buffer = new byte[bufferSize];
            try {
                addPreviewBufferMethod.invoke(camera, buffer);
            } catch (Exception ignored) {
                return false;
            }//from w ww  .ja v a 2s. com
        }
        return true;
    }
}

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