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-rw-r--r--src/com/example/rotorm/CameraActivity.java134
-rw-r--r--src/com/example/rotorm/MainActivity.java316
-rw-r--r--src/com/example/rotorm/Preview.java160
3 files changed, 294 insertions, 316 deletions
diff --git a/src/com/example/rotorm/CameraActivity.java b/src/com/example/rotorm/CameraActivity.java
new file mode 100644
index 0000000..6b35995
--- /dev/null
+++ b/src/com/example/rotorm/CameraActivity.java
@@ -0,0 +1,134 @@
+package com.example.rotorm;
+
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
+
+import android.app.Activity;
+import android.content.Context;
+import android.hardware.Camera;
+import android.hardware.Camera.AutoFocusCallback;
+import android.hardware.Camera.PictureCallback;
+import android.hardware.Camera.ShutterCallback;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.SurfaceView;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.view.View.OnLongClickListener;
+import android.view.ViewGroup.LayoutParams;
+import android.view.Window;
+import android.view.WindowManager;
+import android.widget.Button;
+import android.widget.FrameLayout;
+
+
+//why is it so hard to put an eclipse project into git
+
+public class CameraActivity extends Activity {
+ public static final String TAG = "rotorM";
+ Preview preview;
+ Button buttonClick;
+ Camera camera;
+ String fileName;
+ Activity act;
+ Context ctx;
+
+ @Override
+ public void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+ ctx = this;
+ act = this;
+ requestWindowFeature(Window.FEATURE_NO_TITLE);
+ getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
+
+ setContentView(R.layout.main);
+
+ preview = new Preview(this, (SurfaceView)findViewById(R.id.surfaceView));
+ preview.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));
+ ((FrameLayout) findViewById(R.id.preview)).addView(preview);
+ preview.setKeepScreenOn(true);
+
+ buttonClick = (Button) findViewById(R.id.buttonClick);
+
+ buttonClick.setOnClickListener(new OnClickListener() {
+ public void onClick(View v) {
+ // preview.camera.takePicture(shutterCallback, rawCallback, jpegCallback);
+ camera.takePicture(shutterCallback, rawCallback, jpegCallback);
+ }
+ });
+
+ buttonClick.setOnLongClickListener(new OnLongClickListener(){
+ @Override
+ public boolean onLongClick(View arg0) {
+ camera.autoFocus(new AutoFocusCallback(){
+ @Override
+ public void onAutoFocus(boolean arg0, Camera arg1) {
+ //camera.takePicture(shutterCallback, rawCallback, jpegCallback);
+ }
+ });
+ return true;
+ }
+ });
+ }
+
+ @Override
+ protected void onResume() {
+ super.onResume();
+ // preview.camera = Camera.open();
+ camera = Camera.open();
+ camera.startPreview();
+ preview.setCamera(camera);
+ }
+
+ @Override
+ protected void onPause() {
+ if(camera != null) {
+ camera.stopPreview();
+ preview.setCamera(null);
+ camera.release();
+ camera = null;
+ }
+ super.onPause();
+ }
+
+ private void resetCam() {
+ camera.startPreview();
+ preview.setCamera(camera);
+ }
+
+ ShutterCallback shutterCallback = new ShutterCallback() {
+ public void onShutter() {
+ // Log.d(TAG, "onShutter'd");
+ }
+ };
+
+ PictureCallback rawCallback = new PictureCallback() {
+ public void onPictureTaken(byte[] data, Camera camera) {
+ // Log.d(TAG, "onPictureTaken - raw");
+ }
+ };
+
+ PictureCallback jpegCallback = new PictureCallback() {
+ public void onPictureTaken(byte[] data, Camera camera) {
+ FileOutputStream outStream = null;
+ try {
+ // Write to SD Card
+ fileName = String.format("/sdcard/camtest/%d.jpg", System.currentTimeMillis());
+ outStream = new FileOutputStream(fileName);
+ outStream.write(data);
+ outStream.close();
+ Log.d(TAG, "onPictureTaken - wrote bytes: " + data.length);
+
+ resetCam();
+
+ } catch (FileNotFoundException e) {
+ e.printStackTrace();
+ } catch (IOException e) {
+ e.printStackTrace();
+ } finally {
+ }
+ Log.d(TAG, "onPictureTaken - jpeg");
+ }
+ };
+}
diff --git a/src/com/example/rotorm/MainActivity.java b/src/com/example/rotorm/MainActivity.java
deleted file mode 100644
index 9ed025f..0000000
--- a/src/com/example/rotorm/MainActivity.java
+++ /dev/null
@@ -1,316 +0,0 @@
-package com.example.rotorm;
-
-
-import java.io.File;
-import java.io.IOException;
-import java.util.Date;
-import java.util.List;
-
-import android.hardware.Camera;
-import android.hardware.Camera.Parameters;
-import android.media.MediaPlayer;
-import android.media.MediaRecorder;
-import android.net.Uri;
-import android.os.Bundle;
-import android.os.Environment;
-import android.app.Activity;
-import android.content.Intent;
-import android.util.Log;
-import android.view.Menu;
-import android.view.MenuItem;
-import android.view.SurfaceHolder;
-import android.view.SurfaceView;
-import android.view.SurfaceHolder.Callback;
-import android.widget.Toast;
-
-//why is it so hard to put an eclipse project into git
-
-public class MainActivity extends Activity implements Callback {
-
- @Override
- protected void onDestroy() {
- stopRecording();
- super.onDestroy();
- }
-
- private SurfaceHolder surfaceHolder;
- private SurfaceView surfaceView;
- public MediaRecorder mrec = new MediaRecorder();
- private Camera mCamera;
- private Uri uriSound;
- MediaPlayer mp;
-
- @Override
- protected void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.activity_main);
-
- uriSound=Uri.parse("");
-
- Intent intent = new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Audio.Media.EXTERNAL_CONTENT_URI);
- startActivityForResult(intent, 10);
- }
-
- @Override
- public boolean onCreateOptionsMenu(Menu menu) {
- menu.add(0, 0, 0, "Start");
- //menu.add(0, 0, 0, "Pick audio track");
- return super.onCreateOptionsMenu(menu);
- // Inflate the menu; this adds items to the action bar if it is present.
- //getMenuInflater().inflate(R.menu.main, menu);
- //return true;
- }
-
- @Override
- public boolean onOptionsItemSelected(MenuItem item)
- {
- if(item.getTitle().equals("Start"))
- {
- try {
-
- startRecording();
- item.setTitle("Stop");
-
- } catch (Exception e) {
-
- String message = e.getMessage();
- Log.i(null, "Problem " + message);
- mrec.release();
- }
-
- }
- else if(item.getTitle().equals("Stop"))
- {
- mrec.stop();
- mrec.release();
- mrec = null;
- item.setTitle("Start");
- mp.stop();
- }
- else if(item.getTitle().equals("Pick audio track"))
- {
- Intent intent = new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Audio.Media.EXTERNAL_CONTENT_URI);
- startActivityForResult(intent, 10);
- }
-
- return super.onOptionsItemSelected(item);
- }
-
- protected void startPreview() throws IOException {
-
- //http://stackoverflow.com/questions/12098298/android-camera-app-passed-null-surface
- //http://developer.android.com/training/camera/cameradirect.html
-
- if (mCamera!=null){
- Log.e("Rotor", "Nulling camera");
- mCamera.stopPreview();
- mCamera.setPreviewCallback(null);
- mCamera.release();
- mCamera=null;
- }
-
- if(mCamera == null){
- mCamera = Camera.open();
- Log.e("Rotor", "Setting up camera");
-
- /*
- Camera.Parameters parameters = mCamera.getParameters();
- //get a list of supported preview sizes and assign one
- List<Camera.Size> previewSizes = parameters.getSupportedPreviewSizes();
- Camera.Size previewSize = previewSizes.get(0);
- parameters.setPreviewSize(previewSize.width, previewSize.height);
- //Set Frame rate
- parameters.setPreviewFrameRate(25);
- //Set Scene
- List<String> modes = parameters.getSupportedSceneModes();
- parameters.setSceneMode(modes.get(0));
- //Set focus mode
- List<String> focus = parameters.getSupportedFocusModes();
- parameters.setFocusMode(focus.get(0));
-
-
- */
-
-
-
-
-
- Camera.Parameters parameters = mCamera.getParameters();
- parameters.setPreviewSize(1280,720);
- parameters.setPreviewFrameRate(25);
- parameters.setSceneMode(Camera.Parameters.SCENE_MODE_SPORTS);
- parameters.setFocusMode(Camera.Parameters.FOCUS_MODE_AUTO);
- parameters.setColorEffect(Camera.Parameters.EFFECT_NONE);
- mCamera.setParameters(parameters);
-
- //Apply parameters to camera object
- mCamera.setParameters(parameters);
- Log.e("Rotor", "Camera configured");
- }
-
-
- if(mCamera==null) mCamera = Camera.open();
-
- setContentView(R.layout.main);
-
- surfaceView = (SurfaceView) findViewById(R.id.surface_camera);
-
- surfaceHolder = surfaceView.getHolder();
- surfaceHolder.addCallback(this);
- surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
-
- mCamera.lock();
- mCamera.unlock();
-
- ////crashes on nexus 10
- //09-07 15:36:21.850: E/AndroidRuntime(5418): java.lang.RuntimeException: getParameters failed (empty parameters)
-
- //Start the preview
- Log.e("Rotor", "Starting preview");
- //mCamera.setPreviewCallback(new cam_PreviewCallback());
- mCamera.setPreviewDisplay(surfaceHolder);
- mCamera.startPreview();
-
- }
-
- protected void startRecording() throws IOException
- {
- if(mCamera==null)
- mCamera = Camera.open();
-
- String filename;
- String path;
-
- path= Environment.getExternalStorageDirectory().getAbsolutePath().toString();
-
- Date date=new Date();
- filename="/rec"+date.toString().replace(" ", "_").replace(":", "_")+".mp4";
-
- Log.i(null, "Saving video file: " + filename);
-
- //create empty file it must use
- File file=new File(path,filename);
-
- mrec = new MediaRecorder();
-
- mCamera.lock();
- mCamera.unlock();
-
- // Please maintain sequence of following code.
-
- // If you change sequence it will not work.
- mrec.setCamera(mCamera);
- mrec.setVideoSource(MediaRecorder.VideoSource.CAMERA);
- //mrec.setAudioSource(MediaRecorder.AudioSource.MIC);
- mrec.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
- mrec.setVideoEncoder(MediaRecorder.VideoEncoder.MPEG_4_SP);
- //mrec.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
- mrec.setPreviewDisplay(surfaceHolder.getSurface());
- mrec.setOutputFile(path+filename);
- mrec.prepare();
- mrec.start();
-
- Log.i(null, "Audio file: " + uriSound);
-
- //try {
- //MediaPlayer mp = new MediaPlayer();
- //MediaPlayer mp = MediaPlayer.create(this, R.raw.stick);
- mp = MediaPlayer.create(this, uriSound);
- //mp.setDataSource(this, uriSound);
- mp.start();
- ///} catch (IllegalArgumentException e) {
- // TODO Auto-generated catch block
- // e.printStackTrace();
- //} catch (SecurityException e) {
- // TODO Auto-generated catch block
- // e.printStackTrace();
- //} catch (IllegalStateException e) {
- // TODO Auto-generated catch block
- // e.printStackTrace();
- //} catch (IOException e) {
- // TODO Auto-generated catch block
- // e.printStackTrace();
- //}
- }
-
- protected void stopRecording() {
-
- if(mrec!=null)
- {
- mrec.stop();
- mrec.release();
- mCamera.release();
- mCamera.lock();
- }
-
- mp.stop();
- }
-
- private void releaseMediaRecorder() {
-
- if (mrec != null) {
- mrec.reset(); // clear recorder configuration
- mrec.release(); // release the recorder object
- }
- }
-
- private void releaseCamera() {
- if (mCamera != null) {
- mCamera.release(); // release the camera for other applications
- mCamera = null;
- }
-
- }
-
- @Override
- public void surfaceChanged(SurfaceHolder holder, int format, int width,int height) {
-
- }
-
- @Override
- public void surfaceCreated(SurfaceHolder holder) {
-
- if (mCamera != null) {
- Parameters params = mCamera.getParameters();
- mCamera.setParameters(params);
- Log.i("Surface", "Created");
- }
- else {
- Toast.makeText(getApplicationContext(), "Camera not available!",
- Toast.LENGTH_LONG).show();
-
- finish();
- }
-
- }
-
- @Override
- public void surfaceDestroyed(SurfaceHolder holder) {
- mCamera.stopPreview();
- mCamera.release();
- //http://stackoverflow.com/questions/13235306/method-called-after-release-exception-camera-preview
- //mCamera=null;
- }
- @Override
- protected void onActivityResult(int requestCode, int resultCode, Intent data) {
-
- //if(requestCode == RESULT_OK && requestCode == 10){
- uriSound=data.getData();
-
- Log.i("Sound file",uriSound.toString());
-
- //String temp="audioFileName";
- //this.getIntent().getStringExtra(temp);
- //uriSound=Uri.parse(temp);
- //uriSound=Uri.parse("/Music/stick.mp3");
- try {
- startPreview();
- } catch (IOException e) {
- Log.e("Preview","Error");
- e.printStackTrace();
- }
-
- //}
- }
-
-}
diff --git a/src/com/example/rotorm/Preview.java b/src/com/example/rotorm/Preview.java
new file mode 100644
index 0000000..5fdea5a
--- /dev/null
+++ b/src/com/example/rotorm/Preview.java
@@ -0,0 +1,160 @@
+package com.example.rotorm;
+
+import java.io.IOException;
+import java.util.List;
+
+import android.content.Context;
+import android.hardware.Camera;
+import android.hardware.Camera.Size;
+import android.util.Log;
+import android.view.SurfaceHolder;
+import android.view.SurfaceView;
+import android.view.View;
+import android.view.ViewGroup;
+
+class Preview extends ViewGroup implements SurfaceHolder.Callback {
+ private final String TAG = "Preview";
+
+ SurfaceView mSurfaceView;
+ SurfaceHolder mHolder;
+ Size mPreviewSize;
+ List<Size> mSupportedPreviewSizes;
+ Camera mCamera;
+
+ Preview(Context context, SurfaceView sv) {
+ super(context);
+
+ mSurfaceView = sv;
+// addView(mSurfaceView);
+
+ mHolder = mSurfaceView.getHolder();
+ mHolder.addCallback(this);
+ mHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
+ }
+
+ public void setCamera(Camera camera) {
+ mCamera = camera;
+ if (mCamera != null) {
+ mSupportedPreviewSizes = mCamera.getParameters().getSupportedPreviewSizes();
+ requestLayout();
+
+ // get Camera parameters
+ Camera.Parameters params = mCamera.getParameters();
+
+ List<String> focusModes = params.getSupportedFocusModes();
+ if (focusModes.contains(Camera.Parameters.FOCUS_MODE_AUTO)) {
+ // set the focus mode
+ params.setFocusMode(Camera.Parameters.FOCUS_MODE_AUTO);
+ // set Camera parameters
+ mCamera.setParameters(params);
+ }
+ }
+ }
+
+ @Override
+ protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
+ // We purposely disregard child measurements because act as a
+ // wrapper to a SurfaceView that centers the camera preview instead
+ // of stretching it.
+ final int width = resolveSize(getSuggestedMinimumWidth(), widthMeasureSpec);
+ final int height = resolveSize(getSuggestedMinimumHeight(), heightMeasureSpec);
+ setMeasuredDimension(width, height);
+
+ if (mSupportedPreviewSizes != null) {
+ mPreviewSize = getOptimalPreviewSize(mSupportedPreviewSizes, width, height);
+ }
+ }
+
+ @Override
+ protected void onLayout(boolean changed, int l, int t, int r, int b) {
+ if (changed && getChildCount() > 0) {
+ final View child = getChildAt(0);
+
+ final int width = r - l;
+ final int height = b - t;
+
+ int previewWidth = width;
+ int previewHeight = height;
+ if (mPreviewSize != null) {
+ previewWidth = mPreviewSize.width;
+ previewHeight = mPreviewSize.height;
+ }
+
+ // Center the child SurfaceView within the parent.
+ if (width * previewHeight > height * previewWidth) {
+ final int scaledChildWidth = previewWidth * height / previewHeight;
+ child.layout((width - scaledChildWidth) / 2, 0,
+ (width + scaledChildWidth) / 2, height);
+ } else {
+ final int scaledChildHeight = previewHeight * width / previewWidth;
+ child.layout(0, (height - scaledChildHeight) / 2,
+ width, (height + scaledChildHeight) / 2);
+ }
+ }
+ }
+
+ public void surfaceCreated(SurfaceHolder holder) {
+ // The Surface has been created, acquire the camera and tell it where
+ // to draw.
+ try {
+ if (mCamera != null) {
+ mCamera.setPreviewDisplay(holder);
+ }
+ } catch (IOException exception) {
+ Log.e(TAG, "IOException caused by setPreviewDisplay()", exception);
+ }
+ }
+
+ public void surfaceDestroyed(SurfaceHolder holder) {
+ // Surface will be destroyed when we return, so stop the preview.
+ if (mCamera != null) {
+ mCamera.stopPreview();
+ }
+ }
+
+
+ private Size getOptimalPreviewSize(List<Size> sizes, int w, int h) {
+ final double ASPECT_TOLERANCE = 0.1;
+ double targetRatio = (double) w / h;
+ if (sizes == null) return null;
+
+ Size optimalSize = null;
+ double minDiff = Double.MAX_VALUE;
+
+ int targetHeight = h;
+
+ // 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) {
+ minDiff = Double.MAX_VALUE;
+ for (Size size : sizes) {
+ if (Math.abs(size.height - targetHeight) < minDiff) {
+ optimalSize = size;
+ minDiff = Math.abs(size.height - targetHeight);
+ }
+ }
+ }
+ return optimalSize;
+ }
+
+ public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) {
+ if(mCamera != null) {
+ Camera.Parameters parameters = mCamera.getParameters();
+ parameters.setPreviewSize(mPreviewSize.width, mPreviewSize.height);
+ requestLayout();
+
+ mCamera.setParameters(parameters);
+ mCamera.startPreview();
+ }
+ }
+
+}
generated by cgit v1.2.3 (git 2.39.1) at 2025-12-06 17:00:57 +0000