自定义原生相机+拍照+GLSurfaceView+Camera

自定义相主要通过 GLSurfaceView视图和Camera相机进行实现。由于GLSurfaceView进行视图的渲染 Camera进行拍照即回调处理
首先添加需要的权限否则会报打不开相机服务的异常需要添加动态权限的自己加一下

首先自定义相机view

public class CameraPreview extends GLSurfaceView implements GLSurfaceView.Renderer, SurfaceTexture.OnFrameAvailableListener {public String vss ="attribute vec2 vPosition;\n" +"attribute vec2 vTexCoord;\n" +"varying vec2 texCoord;\n" +"void main() {\n" +"  texCoord = vTexCoord;\n" +"  gl_Position = vec4 ( vPosition.y, vPosition.x, 0.0, 1.0 );\n" +"}";private final String fss_front ="#extension GL_OES_EGL_image_external : require\n" +"precision mediump float;\n" +"uniform samplerExternalOES sTexture;\n" +"varying vec2 texCoord;\n" +"void main() {\n" +"  gl_FragColor = texture2D(sTexture,texCoord);\n" +"}";private final String fss_back ="#extension GL_OES_EGL_image_external : require\n" +"precision mediump float;\n" +"uniform samplerExternalOES sTexture;\n" +"varying vec2 texCoord;\n" +"void main() {\n" +"  vec2 newText = vec2(1.0-texCoord.x, texCoord.y);\n" +"  gl_FragColor = texture2D(sTexture,newText);\n" +"}";private static String LOG_TAG = CameraPreview.class.getName();private List<Camera.Size> mSupportedPreviewSizes;private int[] mTextureId;private int[] fbo = new int[]{0};private SurfaceTexture mSurfaceTexture;private Camera mCamera;private FloatBuffer pVertex;private FloatBuffer pTexCoord;private ByteBuffer pixelBuffer;private MediaRecorder mMediarecorder;private File mOutputFile;public Boolean isPreviewing = false;private int nCameraFrontBack; //0: front  1:backprivate int hProgram;private int bufferWidth = 1040;private int bufferHeight = 1848;private int mWindowWidth = 1040;private int mWindowHeight = 1848;private static float mPreviewRatio = 640 / 480.0f;public static final int CameraFront = 0;public static final int CameraBack = 1;private OnTakePicCallBack mOnTakePicCallBack;private OnDrawFrameCallback mOnDrawFrameCallback;public interface OnDrawFrameCallback {void call(byte[] rgba, int w, int h);}public interface OnTakePicCallBack {void onPictureTaken(byte[] data);}public CameraPreview(Context context) {super(context);initView();}public CameraPreview(Context context, AttributeSet attrs) {super(context, attrs);TypedArray typedArray = context.obtainStyledAttributes(attrs, R.styleable.youtuattrs);nCameraFrontBack = typedArray.getInteger(R.styleable.youtuattrs_cameraPosition, 0);initView();}private void initView() {Log.d(LOG_TAG, "initView");float[] vtmp = {1.0f, -1.0f, -1.0f, -1.0f, 1.0f, 1.0f, -1.0f, 1.0f};float[] ttmp = {1.0f, 1.0f, 0.0f, 1.0f, 1.0f, 0.0f, 0.0f, 0.0f};pVertex = ByteBuffer.allocateDirect(8 * 4).order(ByteOrder.nativeOrder()).asFloatBuffer();pVertex.put(vtmp);pVertex.position(0);pTexCoord = ByteBuffer.allocateDirect(8 * 4).order(ByteOrder.nativeOrder()).asFloatBuffer();pTexCoord.put(ttmp);pTexCoord.position(0);pixelBuffer = ByteBuffer.allocateDirect(bufferWidth * bufferHeight * 4).order(ByteOrder.nativeOrder());setEGLContextClientVersion(2);setEGLConfigChooser(8, 8, 8, 8, 0, 0);// fixed:setRenderer(this);setRenderMode(GLSurfaceView.RENDERMODE_WHEN_DIRTY);getHolder().setFormat(PixelFormat.RGBA_8888);if (nCameraFrontBack == CameraFront) {openFrontCamera();} else {openBackCamera();}Camera.Size size = mCamera.getParameters().getPreviewSize();mPreviewRatio = (float) size.width / size.height;}@Overridepublic void onResume() {Log.d(LOG_TAG, "onResume");}@Overridepublic void onPause() {Log.d(LOG_TAG, "onPause");}public void setOnTakePicCallBack(OnTakePicCallBack callBack) {mOnTakePicCallBack = callBack;}@Overridepublic void onFrameAvailable(SurfaceTexture surfaceTexture) {requestRender();}@Overridepublic void surfaceDestroyed(SurfaceHolder holder) {super.surfaceDestroyed(holder);}@Overridepublic void onSurfaceCreated(GL10 gl, EGLConfig config) {}@Overridepublic void onSurfaceChanged(GL10 gl, int width, int height) {if (mSurfaceTexture != null) {mSurfaceTexture.setOnFrameAvailableListener(null);mSurfaceTexture.release();mSurfaceTexture = null;}if (hProgram != 0) {GLES20.glDeleteProgram(hProgram);hProgram = 0;}initTex();mSurfaceTexture = new SurfaceTexture(mTextureId[0]);mSurfaceTexture.setOnFrameAvailableListener(this);try {mCamera.stopPreview();mCamera.setPreviewTexture(mSurfaceTexture);} catch (Exception e) {e.printStackTrace();}if (nCameraFrontBack == CameraFront) {hProgram = loadShader(vss, fss_front);} else {hProgram = loadShader(vss, fss_back);}mWindowWidth = width;mWindowHeight = height;initCamera();}public void takePicture() {//initCamera();//实现相机的参数初始化
//        mCamera.startPreview();if (mCamera != null && isPreviewing) {//对焦是个坑 感觉不加的好
//            mCamera.autoFocus(new Camera.AutoFocusCallback() {
//                @Override
//                public void onAutoFocus(boolean b, Camera camera) {
//                    if (b) {mCamera.takePicture(null, null, mJpegPictureCallback);isPreviewing = false;
//                        mCamera.cancelAutoFocus();//只有加上了这一句，才会自动对焦。
//                    }
//                }
//            });}}private void openFrontCamera() {Camera.CameraInfo cameraInfo = new Camera.CameraInfo();int cameraCount = Camera.getNumberOfCameras();for (int camIdx = 0; camIdx < cameraCount; camIdx++) {Camera.getCameraInfo(camIdx, cameraInfo);Log.i("摄像头", camIdx + "...." + cameraInfo.facing + "..." + cameraInfo.orientation);if (cameraInfo.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {mCamera = Camera.open(camIdx);return;}}mCamera = Camera.open();}private void openBackCamera() {Camera.CameraInfo cameraInfo = new Camera.CameraInfo();int cameraCount = Camera.getNumberOfCameras();for (int camIdx = 0; camIdx < cameraCount; camIdx++) {Camera.getCameraInfo(camIdx, cameraInfo);if (cameraInfo.facing == Camera.CameraInfo.CAMERA_FACING_BACK) {mCamera = Camera.open(camIdx);return;}}mCamera = Camera.open();}private void initTex() {mTextureId = new int[2];GLES20.glGenTextures(2, mTextureId, 0);GLES20.glBindTexture(GLES11Ext.GL_TEXTURE_EXTERNAL_OES, mTextureId[0]);GLES20.glActiveTexture(GLES20.GL_TEXTURE0);GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, mTextureId[1]);GLES20.glTexImage2D(GLES20.GL_TEXTURE_2D, 0, GLES20.GL_RGBA,bufferWidth, bufferHeight, 0, GLES20.GL_RGBA,GLES20.GL_UNSIGNED_BYTE, null);GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D,GLES20.GL_TEXTURE_MAG_FILTER, GLES20.GL_LINEAR);GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D,GLES20.GL_TEXTURE_MIN_FILTER, GLES20.GL_LINEAR);GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D,GLES20.GL_TEXTURE_WRAP_S, GLES20.GL_CLAMP_TO_EDGE);GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D,GLES20.GL_TEXTURE_WRAP_T, GLES20.GL_CLAMP_TO_EDGE);GLES20.glGenFramebuffers(1, fbo, 0);GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, fbo[0]);GLES20.glFramebufferTexture2D(GLES20.GL_FRAMEBUFFER,GLES20.GL_COLOR_ATTACHMENT0, GLES20.GL_TEXTURE_2D,mTextureId[1], 0);}private void deleteTex() {if (mTextureId[0] != 0) {GLES20.glDeleteTextures(2, mTextureId, 0);mTextureId[0] = 0;mTextureId[1] = 0;}if (fbo[0] != 0) {GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, fbo[0]);GLES20.glFramebufferTexture2D(GLES20.GL_FRAMEBUFFER,GLES20.GL_COLOR_ATTACHMENT0, GLES20.GL_TEXTURE_2D, 0, 0);GLES20.glDeleteFramebuffers(1, fbo, 0);fbo[0] = 0;}}private void initCamera() {try {//配置如下：Camera.Parameters parameters = mCamera.getParameters();// 获取相机参数集//            if (parameters.getSupportedPreviewSizes() != null && parameters.getSupportedPreviewSizes().size() > 0) {
//                //预览像素
//                parameters.setPreviewSize(parameters.getSupportedPreviewSizes().get(0).width, parameters.getSupportedPreviewSizes().get(0).height);
//            }if (parameters.getSupportedPictureSizes() != null && parameters.getSupportedPictureSizes().size() > 0) {//拍照图片的大小  100kparameters.setPictureSize(parameters.getSupportedPictureSizes().get(parameters.getSupportedPictureSizes().size() / 4).width, parameters.getSupportedPictureSizes().get(parameters.getSupportedPictureSizes().size() / 4).height);//拍照图片的大小  200k
//                parameters.setPictureSize(parameters.getSupportedPictureSizes().get(parameters.getSupportedPictureSizes().size() / 2).width, parameters.getSupportedPictureSizes().get(parameters.getSupportedPictureSizes().size() / 2).height);}parameters.setPictureFormat(ImageFormat.JPEG);mCamera.setParameters(parameters);//开启预览效果mCamera.startPreview();//启动浏览isPreviewing = true;} catch (Exception e) {Log.d(LOG_TAG, "Error starting camera preview: " + e.getMessage());}}private void releaseMediaRecorder() {if (mMediarecorder != null) {// clear recorder configurationmMediarecorder.reset();// release the recorder objectmMediarecorder.release();mMediarecorder = null;// Lock camera for later use i.e taking it back from MediaRecorder.// MediaRecorder doesn't need it anymore and we will release it if the activity pauses.if (mCamera != null) {mCamera.lock();}}}@Overridepublic void onDrawFrame(GL10 gl) {GLES20.glClear(GLES20.GL_COLOR_BUFFER_BIT);if (null != mSurfaceTexture) {mSurfaceTexture.updateTexImage();}GLES20.glUseProgram(hProgram);int ph = GLES20.glGetAttribLocation(hProgram, "vPosition");int tch = GLES20.glGetAttribLocation(hProgram, "vTexCoord");int th = GLES20.glGetUniformLocation(hProgram, "sTexture");GLES20.glActiveTexture(GLES20.GL_TEXTURE0);GLES20.glBindTexture(GLES11Ext.GL_TEXTURE_EXTERNAL_OES, mTextureId[0]);GLES20.glTexParameteri(GLES11Ext.GL_TEXTURE_EXTERNAL_OES, GLES20.GL_TEXTURE_WRAP_S, GLES20.GL_CLAMP_TO_EDGE);GLES20.glTexParameteri(GLES11Ext.GL_TEXTURE_EXTERNAL_OES, GLES20.GL_TEXTURE_WRAP_T, GLES20.GL_CLAMP_TO_EDGE);GLES20.glTexParameteri(GLES11Ext.GL_TEXTURE_EXTERNAL_OES, GLES20.GL_TEXTURE_MIN_FILTER, GLES20.GL_LINEAR);GLES20.glTexParameteri(GLES11Ext.GL_TEXTURE_EXTERNAL_OES, GLES20.GL_TEXTURE_MAG_FILTER, GLES20.GL_LINEAR);GLES20.glUniform1i(th, 0);GLES20.glVertexAttribPointer(ph, 2, GLES20.GL_FLOAT, false, 4 * 2, pVertex);GLES20.glVertexAttribPointer(tch, 2, GLES20.GL_FLOAT, false, 4 * 2, pTexCoord);GLES20.glEnableVertexAttribArray(ph);GLES20.glEnableVertexAttribArray(tch);{GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, fbo[0]);GLES20.glViewport(0, 0, bufferWidth, bufferHeight);GLES20.glDrawArrays(GLES20.GL_TRIANGLE_STRIP, 0, 4);GLES20.glReadPixels(0, 0, bufferWidth, bufferHeight, GL10.GL_RGBA, GL10.GL_UNSIGNED_BYTE, pixelBuffer);if (mOnDrawFrameCallback != null) {mOnDrawFrameCallback.call(pixelBuffer.array(), bufferWidth, bufferHeight);}}GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, 0);{double aspectHeight = mWindowHeight;double aspectWidth = mWindowHeight / mPreviewRatio;if (mWindowWidth > aspectWidth) {aspectWidth = mWindowWidth;aspectHeight = mWindowWidth * mPreviewRatio;}// glViewport(0, 0, width_, height_);GLES20.glViewport((int) -(aspectWidth - mWindowWidth) / 2,(int) -(aspectHeight - mWindowHeight) / 2, (int) aspectWidth,(int) aspectHeight);}
//        GLES20.glViewport(0, 0, mWindowWidth, mWindowHeight);GLES20.glDrawArrays(GLES20.GL_TRIANGLE_STRIP, 0, 4);GLES20.glDisableVertexAttribArray(ph);GLES20.glDisableVertexAttribArray(tch);}private static int loadShader(String vss, String fss) {int vshader = GLES20.glCreateShader(GLES20.GL_VERTEX_SHADER);GLES20.glShaderSource(vshader, vss);GLES20.glCompileShader(vshader);int[] compiled = new int[1];GLES20.glGetShaderiv(vshader, GLES20.GL_COMPILE_STATUS, compiled, 0);if (compiled[0] == 0) {Log.e("Shader", "Could not compile vshader");Log.v("Shader", "Could not compile vshader:" + GLES20.glGetShaderInfoLog(vshader));GLES20.glDeleteShader(vshader);vshader = 0;}int fshader = GLES20.glCreateShader(GLES20.GL_FRAGMENT_SHADER);GLES20.glShaderSource(fshader, fss);GLES20.glCompileShader(fshader);GLES20.glGetShaderiv(fshader, GLES20.GL_COMPILE_STATUS, compiled, 0);if (compiled[0] == 0) {Log.e("Shader", "Could not compile fshader");Log.v("Shader", "Could not compile fshader:" + GLES20.glGetShaderInfoLog(fshader));GLES20.glDeleteShader(fshader);fshader = 0;}int program = GLES20.glCreateProgram();GLES20.glAttachShader(program, vshader);GLES20.glAttachShader(program, fshader);GLES20.glLinkProgram(program);return program;}PictureCallback mJpegPictureCallback = new PictureCallback() {public void onPictureTaken(byte[] data, Camera camera) {Log.i(LOG_TAG, "myJpegCallback:onPictureTaken...");mCamera.stopPreview();
//            isPreviewing = false;if (mOnTakePicCallBack != null) {mOnTakePicCallBack.onPictureTaken(data);}mCamera.startPreview();isPreviewing = true;}};private Camera.Size getOptimalPreviewSize(List<Camera.Size> sizes, int w, int h) {final double ASPECT_TOLERANCE = 0.1;double targetRatio = (double) h / w;if (sizes == null)return null;Camera.Size optimalSize = null;double minDiff = Double.MAX_VALUE;int targetHeight = h;for (Camera.Size size : sizes) {double ratio = (double) size.height / size.width;if (Math.abs(ratio - targetRatio) > ASPECT_TOLERANCE)continue;if (Math.abs(size.height - targetHeight) < minDiff) {optimalSize = size;minDiff = Math.abs(size.height - targetHeight);}}if (optimalSize == null) {minDiff = Double.MAX_VALUE;for (Camera.Size size : sizes) {if (Math.abs(size.height - targetHeight) < minDiff) {optimalSize = size;minDiff = Math.abs(size.height - targetHeight);}}}return optimalSize;}ShutterCallback mShutterCallback = new ShutterCallback() {public void onShutter() {Log.i(LOG_TAG, "myShutterCallback:onShutter...");}};public File startRecordVideo() {mMediarecorder = new MediaRecorder();// 创建mediarecorder对象mCamera.unlock();mMediarecorder.setCamera(mCamera);// 设置录制视频源为Camera(相机)mMediarecorder.setAudioSource(MediaRecorder.AudioSource.MIC);mMediarecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);// 设置录制完成后视频的封装格式THREE_GPP为3gp.MPEG_4为mp4mMediarecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);// 设置录制的视频编码h263 h264
//        mMediarecorder.setVideoFrameRate(15);CamcorderProfile profile = CamcorderProfile.get(CamcorderProfile.QUALITY_TIME_LAPSE_480P);mMediarecorder.setVideoSize(profile.videoFrameWidth, profile.videoFrameHeight);//        mediarecorder.setVideoEncodingBitRate(4000000);mMediarecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);mMediarecorder.setVideoEncoder(MediaRecorder.VideoEncoder.H264);// 设置视频录制的分辨率。必须放在设置编码和格式的后面，否则报错////        // 设置录制的视频帧率。必须放在设置编码和格式的后面，否则报错//        mediarecorder.setVideoFrameRate(30);mMediarecorder.setOrientationHint(270);// 设置视频文件输出的路径mOutputFile = getOutputMediaFile();if (mOutputFile == null) {return null;}mMediarecorder.setOutputFile(mOutputFile.getPath());try {// 准备录制mMediarecorder.prepare();// 开始录制mMediarecorder.start();} catch (IllegalStateException e) {releaseMediaRecorder();e.printStackTrace();} catch (IOException e) {releaseMediaRecorder();e.printStackTrace();}return mOutputFile;}private File getOutputMediaFile() {// To be safe, you should check that the SDCard is mounted// using Environment.getExternalStorageState() before doing this.if (!Environment.getExternalStorageState().equalsIgnoreCase(Environment.MEDIA_MOUNTED)) {return null;}File mediaStorageDir = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES), "youtu");// This location works best if you want the created images to be shared// between applications and persist after your app has been uninstalled.// Create the storage directory if it does not existif (!mediaStorageDir.exists()) {if (!mediaStorageDir.mkdirs()) {Log.d("CameraSample", "failed to create directory");return null;}}// Create a media file nameString timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());File mediaFile = new File(mediaStorageDir.getPath() + File.separator +"VID_" + timeStamp + ".mp4");return mediaFile;}public void stopRecordCamera() {releaseMediaRecorder();}public void setCameraFrontBack(int n) {nCameraFrontBack = n;}public void releaseRes() {releaseMediaRecorder();isPreviewing = false;if (mCamera != null) {mCamera.stopPreview();mCamera.release();mCamera = null;}queueEvent(new Runnable() {@Overridepublic void run() {if (mSurfaceTexture != null) {mSurfaceTexture.setOnFrameAvailableListener(null);mSurfaceTexture.release();mSurfaceTexture = null;}if (hProgram != 0) {GLES20.glDeleteProgram(hProgram);hProgram = 0;}deleteTex();}});}public void setOnDrawFrameCallback(OnDrawFrameCallback callback) {mOnDrawFrameCallback = callback;}
}

自定义view需要的attr参数文件

<?xml version="1.0" encoding="UTF-8"?>
<resources xmlns:tools="http://schemas.android.com/tools"><declare-styleable name="youtuattrs"><attr name="cameraPosition"><flag name="front" value="0" /><flag name="back" value="1" /></attr></declare-styleable>
</resources>

以上为所有准备工作下面开始调用

引入xml布局文件

<com.example.eyemhealth.face.CameraPreviewandroid:id="@+id/camPreview"android:layout_width="@dimen/dp_131"android:layout_height="@dimen/dp_130"android:layout_marginBottom="@dimen/dp_70"android:layout_alignParentBottom="true"android:layout_marginLeft="@dimen/dp_264"app:cameraPosition="front"/>

通过布局找到文件不多说了直接看操作代码

拍照

mCamPreview.takePicture();**//拍照回调**
mCamPreview.setOnTakePicCallBack(new CameraPreview.OnTakePicCallBack() {@Overridepublic void onPictureTaken(byte[] data) {//将字节数组转成图片 并旋转Bitmap bitmap1 = rotateBitmap(-90, BitmapFactory.decodeByteArray(data, 0, data.length));ByteArrayOutputStream baos = new ByteArrayOutputStream();bitmap1.compress(Bitmap.CompressFormat.JPEG, 100, baos);byte[] bits = baos.toByteArray();encode = Base64.encode(bits);  }
});

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