codice di cattura delle immagini RAW per:
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.os.Environment;
import android.os.Looper;
import android.text.format.DateFormat;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.SurfaceHolder;
import android.view.Window;
import android.view.WindowManager;
import android.view.SurfaceHolder.Callback;
import android.hardware.Camera;
import android.hardware.Camera.PictureCallback;
import android.hardware.Camera.ShutterCallback;
import android.view.KeyEvent;
import android.app.ProgressDialog;
import android.app.Dialog;
import android.os.Handler;
import android.os.Message;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
import java.util.List;
import android.hardware.Camera.Size;
import android.view.Display;
import android.view.View;
import android.view.View.OnClickListener;
import android.util.Log;
public class Camera extends Activity implements SurfaceHolder.Callback {
private int mMode;
private boolean mIssdcardExist = false;
private VideoPreview mVideoPreview; //缺VideoPreview这个类
private int mPrvW = 640, mPrvH = 480;
private int mDispW = 640, mDispH = 480;
private int mPicW = 2560, mPicH = 1920;
private Camera mCamera;
private Camera.Parameters mCameraParam;
private int mIsPreviewing = 0;
private volatile int mIsFocused = 0;
private volatile int mIsCapture = 0;
private long mFocusStartTime;
private long mFocusCallbackTime;
private long mCaptureStartTime;
private long mShutterCallbackTime;
private long mRawPictureCallbackTime;
private long mJpegPictureCallbackTime;
private final AutoFocusCallback mAutoFocusCallback = new AutoFocusCallback();
private final ShutterCallback mShutterCallback = new ShutterCallback();
private final RawPictureCallback mRawPictureCallback = new RawPictureCallback();
private static final String CAMERA_IMAGE_BUCKET_NAME = Environment.getExternalStorageDirectory().toString() + "/DCIM/CameraEM/";
private int mAFEngMode = 0;
public static final int CAPTURE_ID = Menu.FIRST;
private String TAG = "EM-Camera";
private final int DIALOG_PROGRESS = 1000;
private ProgressDlgHandler mProgressDlgHandler = new ProgressDlgHandler();
private final int EVENT_FULL_SCAN_START = 100;
private final int EVENT_FULL_SCAN_COMPLETE = 101;
private boolean mIsTest = false;
private boolean mProgressDlgExists = false;
private boolean mIsRawCapture = false;
private String mRawCaptureFileName;
private boolean mIsOnPause = false;
private int mPos = 0;
private static final int MSG_AF_MODE1_EVENT = 1001;
private static final int MSG_AF_MODE3_EVENT = 1003;
private static final int MSG_AF_MODE4_EVENT = 1004;
private mAFMode1FirstThread threadFirst;
private AFMode1Thread mode1Thread;
private AFMode2Thread mode2Thread;
private AFMode3Thread mode3Thread;
private AFMode4Thread mode4Thread;
private RawCaptureThread mRawCaptureThread;
private boolean mCanBack = true;
private Button mButtonPass;
private Button mButtonFail;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.camera_test);
Window win = getWindow();
win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
if(Environment.getExternalStorageState().equals(Environment.MEDIA_REMOVED))
{
mIssdcardExist = false;
}
else
{
File file = new File(CAMERA_IMAGE_BUCKET_NAME);
if(!file.isDirectory())
{
file.mkdirs();
}
mIssdcardExist = true;
}
mButtonPass = (Button) findViewById(R.id.camera_test_pass);
mButtonPass.setOnClickListener(mButtonHandler);
mButtonFail = (Button) findViewById(R.id.camera_test_fail);
mButtonFail.setOnClickListener(mButtonHandler);
}
@Override
public void onResume() {
super.onResume();
Log.i(TAG, "onResume ");
mVideoPreview = (VideoPreview) findViewById(R.id.camera_preview);
mVideoPreview.setAspectRatio(mPrvW, mPrvH);
SurfaceHolder holder = mVideoPreview.getHolder();
holder.addCallback(this);
holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
mIsTest = false;
mIsOnPause = false;
}
@Override
public void onPause() {
mIsOnPause = true;
if(null != mode1Thread && true == mode1Thread.isAlive()){
try{
mode1Thread.join();
}catch(Exception e){
}
}
if(null != threadFirst && true == threadFirst.isAlive()){
try{
threadFirst.join();
}catch(Exception e){
}
}
if(null != mode2Thread && true == mode2Thread.isAlive()){
try{
mode2Thread.join();
}catch(Exception e){
}
}
if(null != mode3Thread && true == mode3Thread.isAlive()){
try{
mode3Thread.join();
}catch(Exception e){
}
}
if(null != mode4Thread && true == mode4Thread.isAlive()){
try{
mode4Thread.join();
}catch(Exception e){
}
}
if(null != mRawCaptureThread && true == mRawCaptureThread.isAlive()){
try{
mRawCaptureThread.join();
}catch(Exception e){
}
}
super.onPause();
Log.i(TAG, "super onPause.");
this.finish();
}
@Override
protected Dialog onCreateDialog(int id){
if(id == DIALOG_PROGRESS){
ProgressDialog dialog = new ProgressDialog(this);
dialog.setMessage("It is in full scan, please wait......");
dialog.setCancelable(false);
return dialog;
}
return null;
}
private class ProgressDlgHandler extends Handler {
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case EVENT_FULL_SCAN_START:
showDialog(DIALOG_PROGRESS);
mProgressDlgExists = true;
break;
case EVENT_FULL_SCAN_COMPLETE:
dismissDialog(DIALOG_PROGRESS);
mProgressDlgExists = false;
break;
}
}
}
public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) {
mDispW = w;
mDispH = h;
Log.i(TAG, "surfaceChanged width is : " + w);
Log.i(TAG, "surfaceChanged height is : " + h);
startPreview();
}
public void surfaceCreated(SurfaceHolder holder) {
openCamera();
try {
mCamera.setPreviewDisplay(holder);
} catch (IOException exception) {
closeCamera();
Log.i(TAG, "surfaceCreated closeCamera ");
}
}
public void surfaceDestroyed(SurfaceHolder arg0) {
stopPreview();
closeCamera();
Log.i(TAG, "surfaceDestroyed closeCamera ");
}
private void openCamera() {
if (mCamera == null) {
mCamera = Camera.open();
Log.i(TAG, "Enter openCamera to init the mCamera.");
if(null == mCamera){
Log.i(TAG, "init the mCamera is null.");
}
}
}
private void closeCamera() {
if(null != mCamera){
mCamera.release();
mCamera = null;
}
}
private void startPreview() {
mCameraParam = mCamera.getParameters();
//GW616 Camera preview problem
// Set a preview size that is closest to the viewfinder height and has
// the right aspect ratio.
Size size = mCameraParam.getPictureSize();
List<Size> sizes = mCameraParam.getSupportedPreviewSizes();
Size optimalSize = getOptimalPreviewSize(
sizes, (double) size.width/size.height);
if (optimalSize != null) {
mCameraParam.setPreviewSize(optimalSize.width, optimalSize.height);
}
//end
// mCameraParam.setPreviewSize(mPrvW, mPrvH);
mCameraParam.set("fps-mode", 0); // Frame rate is normal
mCameraParam.set("cam-mode", 0); // Cam mode is preview
mCamera.setParameters(mCameraParam);
Log.i(TAG, "startPreview width is : " + mPrvW);
Log.i(TAG, "startPreview height is : " + mPrvH);
mCamera.startPreview();
mIsPreviewing = 1;
}
private void stopPreview() {
if(null != mCamera){
mCamera.stopPreview();
}
mIsPreviewing = 0;
}
private Size getOptimalPreviewSize(List<Size> sizes, double targetRatio) {
final double ASPECT_TOLERANCE = 0.05;
if (sizes == null) return null;
Size optimalSize = null;
double minDiff = Double.MAX_VALUE;
// Because of bugs of overlay and layout, we sometimes will try to
// layout the viewfinder in the portrait orientation and thus get the
// wrong size of mSurfaceView. When we change the preview size, the
// new overlay will be created before the old one closed, which causes
// an exception. For now, just get the screen size
Display display = getWindowManager().getDefaultDisplay();
int targetHeight = Math.min(display.getHeight(), display.getWidth());
if (targetHeight <= 0) {
// We don't know the size of SurefaceView, use screen height
WindowManager windowManager = (WindowManager)
getSystemService(this.WINDOW_SERVICE);
targetHeight = windowManager.getDefaultDisplay().getHeight();
}
// Try to find an size match aspect ratio and size
for (Size size : sizes) {
double ratio = (double) size.width/size.height;
if (Math.abs(ratio - targetRatio) > ASPECT_TOLERANCE) continue;
if (Math.abs(size.height - targetHeight) < minDiff) {
optimalSize = size;
minDiff = Math.abs(size.height - targetHeight);
}
}
// Cannot find the one match the aspect ratio, ignore the requirement
if (optimalSize == null) {
Log.v(TAG, "No preview size match the aspect ratio");
minDiff = Double.MAX_VALUE;
for (Size size : sizes) {
if (Math.abs(size.height - targetHeight) < minDiff) {
optimalSize = size;
minDiff = Math.abs(size.height - targetHeight);
}
}
}
Log.v(TAG, String.format(
"Optimal preview size is %sx%s",
optimalSize.width, optimalSize.height));
return optimalSize;
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
switch (keyCode) {
case KeyEvent.KEYCODE_CAMERA:
this.CapturePicture();
return true;
case KeyEvent.KEYCODE_DPAD_CENTER:
return true;
case KeyEvent.KEYCODE_SEARCH:
return true;
case KeyEvent.KEYCODE_FOCUS:
return true;
}
return super.onKeyDown(keyCode, event);
}
private void CapturePicture(){
if(false == mIssdcardExist)
{
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("sdcard not available");
builder.setMessage("Please insert sdcard.");
builder.setPositiveButton("OK" , null);
builder.create().show();
return;
}
if(Environment.getExternalStorageState().equals(Environment.MEDIA_SHARED))
{
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("sdcard is busy");
builder.setMessage("Sorry, your SD card is busy.");
builder.setPositiveButton("OK" , null);
builder.create().show();
return;
}
if(true == mIsTest)
{
Toast.makeText(this,"It is in capturing, can not repeat capture.",Toast.LENGTH_LONG).show();
if(true == mProgressDlgExists)
{
showDialog(DIALOG_PROGRESS);
}
return;
}
Intent intent = getIntent();
int TestMode = intent.getIntExtra("TestMode", 0);
Log.i(TAG, "The value of TestMode is :" + TestMode);
if(1 == TestMode)//AF Mode
{
mMode = intent.getIntExtra("AFMode", 0);
switch(mMode){
case 1:
captureMode1();
break;
case 2:
captureMode2();
break;
case 3:
captureMode3();
break;
case 4:
captureMode4();
break;
}
}
else if(2 == TestMode)//RawCapture Mode
{
RawCapture();
}
else//not select mode yet
{
Toast.makeText(this,"Please select the test mode first!",Toast.LENGTH_LONG).show();
}
}
private void captureMode1()
{
Log.i(TAG, "Enter captureMode1 function.");
threadFirst = new mAFMode1FirstThread();
threadFirst.start();
}
class mAFMode1FirstThread extends Thread{
public void run(){
Log.i(TAG, "mAFMode1FirstThread");
mIsTest = true;
mAFEngMode = 0;
mCameraParam.set("afeng-mode", mAFEngMode);
mCameraParam.set("focus-mode", "auto");
mCameraParam.set("focus-meter", "spot");
mCamera.setParameters(mCameraParam);
mFocusStartTime = System.currentTimeMillis();
mIsFocused = 0;
mCamera.autoFocus(mAutoFocusCallback);
mCanBack = false;
takePicture();
mAFEngMode = 1;
mCameraParam.set("afeng-mode", mAFEngMode);
mCameraParam.set("focus-mode", "manual");
mCamera.setParameters(mCameraParam);
mPos = 0;
mCameraParam.set("afeng-pos", mPos);
mCamera.setParameters(mCameraParam);
startPreview();
mCanBack = true;
Sleep(2000);
mHandler.sendEmptyMessage(MSG_AF_MODE1_EVENT);
Log.i(TAG, "mAFMode1FirstThread finish.");
}
}
private Handler mHandler = new Handler(){
@Override
public void handleMessage(Message msg){
switch(msg.what){
case MSG_AF_MODE1_EVENT:
mode1Thread = new AFMode1Thread();
mode1Thread.start();
break;
case MSG_AF_MODE3_EVENT:
mode3Thread = new AFMode3Thread();
mode3Thread.start();
break;
case MSG_AF_MODE4_EVENT:
mode4Thread = new AFMode4Thread();
mode4Thread.start();
break;
default:
break;
}
}
};
@Override
public void onBackPressed() {
if(false == mCanBack){
return;
}
super.onBackPressed();
}
class AFMode1Thread extends Thread{
public void run(){
Log.i(TAG, "mAFMode1Thread");
if(true == mIsOnPause){
mHandler.removeMessages(MSG_AF_MODE1_EVENT);
return;
}
mCanBack = false;
takePicture();
mPos ++;
mCameraParam.set("afeng-pos", mPos);
mCamera.setParameters(mCameraParam);
startPreview();
mCanBack = true;
Sleep(2000);
if(false == mIsOnPause && mPos <= 50){
mHandler.sendEmptyMessage(MSG_AF_MODE1_EVENT);
}
if(mPos > 50){
mIsTest = false;
}
}
}
private void captureMode2()
{
Log.i(TAG, "Enter captureMode2 function.");
mode2Thread = new AFMode2Thread();
mode2Thread.start();
}
class AFMode2Thread extends Thread{
public void run(){
Log.i(TAG, "mAFMode2Thread");
mIsTest = true;
mCanBack = true;
mAFEngMode = 1;
mCameraParam.set("afeng-mode", mAFEngMode);
mCameraParam.set("focus-mode", "fullscan");
mCamera.setParameters(mCameraParam);
mIsFocused = 0;
mCamera.autoFocus(mAutoFocusCallback);
mProgressDlgHandler.sendEmptyMessage(EVENT_FULL_SCAN_START);
mCanBack = false;
takePicture();
startPreview();
mCanBack = true;
mIsTest = false;
Sleep(2000);
}
}
private void captureMode3()
{
Log.i(TAG, "Enter captureMode3 function.");
mPos = 0;
mode3Thread = new AFMode3Thread();
mode3Thread.start();
}
class AFMode3Thread extends Thread{
public void run(){
Log.i(TAG, "mAFMode3Thread");
if(true == mIsOnPause){
mHandler.removeMessages(MSG_AF_MODE3_EVENT);
return;
}
mIsTest = true;
mAFEngMode = 1;
mCameraParam.set("afeng-mode", mAFEngMode);
mCameraParam.set("focus-mode", "fullscan");
mCamera.setParameters(mCameraParam);
mIsFocused = 0;
mCamera.autoFocus(mAutoFocusCallback);
mProgressDlgHandler.sendEmptyMessage(EVENT_FULL_SCAN_START);
mCanBack = false;
takePicture();
mPos ++;
startPreview();
mCanBack = true;
Sleep(2000);
if(false == mIsOnPause && mPos <= 50){
mHandler.sendEmptyMessage(MSG_AF_MODE3_EVENT);
}
if(mPos > 50){
mIsTest = false;
}
}
}
private void captureMode4()
{
Log.i(TAG, "Enter captureMode4 function.");
mPos = 0;
mode4Thread = new AFMode4Thread();
mode4Thread.start();
}
class AFMode4Thread extends Thread{
public void run(){
Log.i(TAG, "mAFMode4Thread");
if(true == mIsOnPause){
mHandler.removeMessages(MSG_AF_MODE4_EVENT);
return;
}
mIsTest = true;
mAFEngMode = 0;
mCameraParam.set("afeng-mode", mAFEngMode);
mCameraParam.set("focus-mode", "auto");
mCameraParam.set("focus-meter", "spot");
mCamera.setParameters(mCameraParam);
mIsFocused = 0;
mCamera.autoFocus(mAutoFocusCallback);
mCanBack = false;
takePicture();
mPos ++;
startPreview();
mCanBack = true;
Sleep(2000);
if(false == mIsOnPause && mPos <= 50){
mHandler.sendEmptyMessage(MSG_AF_MODE4_EVENT);
}
if(mPos > 50){
mIsTest = false;
}
}
}
private void RawCapture()
{
Log.i(TAG, "Enter RawCapture function.");
mRawCaptureThread = new RawCaptureThread();
mRawCaptureThread.start();
}
class RawCaptureThread extends Thread{
public void run(){
Log.i(TAG, "mAFMode4Thread");
mCanBack = true;
mIsTest = true;
mIsRawCapture = true;
mCameraParam.set("rawsave-mode", "on");
long dateTaken = System.currentTimeMillis();
mRawCaptureFileName = CAMERA_IMAGE_BUCKET_NAME + createName(dateTaken);
mCameraParam.set("rawfname", mRawCaptureFileName + ".raw");
mCamera.setParameters(mCameraParam);
mCamera.autoFocus(mAutoFocusCallback);
mCanBack = false;
takePicture();
startPreview();
mCanBack = true;
mIsRawCapture = false;
mIsTest = false;
Sleep(2000);
}
}
private final class AutoFocusCallback implements android.hardware.Camera.AutoFocusCallback {
public void onAutoFocus(boolean focused, android.hardware.Camera camera) {
mFocusCallbackTime = System.currentTimeMillis();
mIsFocused = 1;
if(1 == mAFEngMode)
{
mProgressDlgHandler.sendEmptyMessage(EVENT_FULL_SCAN_COMPLETE);
}
}
}
private final class ShutterCallback implements android.hardware.Camera.ShutterCallback {
public void onShutter() {
mShutterCallbackTime = System.currentTimeMillis();
}
}
private final class RawPictureCallback implements PictureCallback {
public void onPictureTaken(byte [] rawData, android.hardware.Camera camera) {
mRawPictureCallbackTime = System.currentTimeMillis();
}
}
private final class JpegPictureCallback implements PictureCallback {
public void onPictureTaken(byte [] jpegData, android.hardware.Camera camera) {
mJpegPictureCallbackTime = System.currentTimeMillis();
if (jpegData != null) {
storeImage(jpegData);
}
mIsCapture = 0;
}
}
private void takePicture()
{
while (mIsFocused == 0) {
Sleep(100);
}
mIsCapture = 1;
mCaptureStartTime = System.currentTimeMillis();
mCamera.takePicture(mShutterCallback, mRawPictureCallback, new JpegPictureCallback());
while (mIsCapture == 1) {
Sleep(100);
}
}
private void Sleep(long time)
{
try{
Thread.sleep(time);
} catch (InterruptedException e){
e.printStackTrace();
}
}
private void storeImage(byte[] jpegData) {
long time;
long dateTaken = System.currentTimeMillis();
String name = CAMERA_IMAGE_BUCKET_NAME + createName(dateTaken) + ".jpg";
if(true == mIsRawCapture)
{
name = mRawCaptureFileName + ".jpg";
}
File fHandle = new File(name);
try {
OutputStream bos = new FileOutputStream(fHandle);
bos.write(jpegData);
bos.close();
time = System.currentTimeMillis();
} catch (Exception ex) {
fHandle.delete();
}
}
private static String createName(long dateTaken) {
return DateFormat.format("yyyy-MM-dd kk.mm.ss", dateTaken).toString();
}
OnClickListener mButtonHandler = new OnClickListener() {
public void onClick(View v) {
SharedPreferences sharedPre = getSharedPreferences("test_results", Context.MODE_PRIVATE);
SharedPreferences.Editor editor = sharedPre.edit();
if (v.getId() == R.id.camera_test_pass) {
Log.i("CameraTest", "-----mButtonHandler----onClick()----camera_test_pass");
editor.putBoolean("CameraTest", true);
} else if (v.getId() == R.id.camera_test_fail) {
Log.i("CameraTest", "-----mButtonHandler----onClick()----camera_test_fail");
editor.putBoolean("CameraTest", false);
}
editor.commit();
Intent intent = new Intent();
intent.setClass(CameraTest.this, SpeakerTest.class);
startActivity(intent);
finish();
}
};
}
per favore come si può dire che queste sono le immagini in realtà prime se sono salvate come bmp ? Per favore puoi aiutarmi a capire? Grazie per il post comunque !!! –
Scusa la mia dislessia che si sta riprendendo, il '.bmp' non era corretto e avrebbe dovuto essere '.raw', come in 1parameters.set (" rawfname "," /mnt/sdcard/test.raw ");'. L'output del file immagine è un'immagine 'bayer', non un'immagine RGB, quindi ogni pixel ha un solo valore a 10 bit rosso O verde O blu. Per creare un'immagine RGB, i pixel circostanti devono essere interpretati. –
Interessante, l'immagine bayer non è l'effettiva immagine "THE" raw. Quando si gioca con le pipe, in realtà viene creata prima un'altra immagine raw, che viene quindi trasformata in bayer, quindi il primo file viene eliminato. L'unico modo in cui ho visto la prima immagine è stato quando la fotocamera riattaccava mentre cercava di usare le pipe. Dal momento che il chip CMOS della telecamera è un array bayer, la mia ipotesi era che il cambiamento di formato fosse dovuto alla facilità di disporre dei dati sui limiti dei byte piuttosto che sui nibble o sui bit bound. –