Android Open Source - Android_MediaCodecTest Camera View

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License

The source code is released under:

Apache License

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Java Source Code

/*
 * Copyright (C) 2013 MorihiroSoft//www .ja  v  a 2s.  c om
 * Copyright 2013 Google Inc. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package jp.morihirosoft.mediacodectest18;

import android.content.Context;
import android.hardware.Camera;
import android.opengl.GLSurfaceView;
import android.util.AttributeSet;

class CameraView extends GLSurfaceView {
  //---------------------------------------------------------------------
  // MEMBERS
  //---------------------------------------------------------------------
  private final VideoParam mVideoParam = VideoParam.getInstance();

  private Camera      mCamera   = null;
  private MyRenderer  mRenderer = null;
  private MyRecorder  mRecorder = null;

  //---------------------------------------------------------------------
  // PUBLIC METHODS
  //---------------------------------------------------------------------
  public CameraView(Context context) {
    super(context);
    init();
  }

  public CameraView(Context context, AttributeSet attrs) {
    super(context, attrs);
    init();
  }

  @Override
  public void onResume() {
    initCamera();
    super.onResume();
  }

  @Override
  public void onPause() {
    quitCamera();
    super.onPause();
  }

  public void startVideo() {
    if (mRecorder == null) {
      mRecorder = new MyRecorder();
      mRecorder.prepareEncoder();
      mRenderer.setRecorder(mRecorder);
    }
  }

  public void stopVideo() {
    if (mRecorder != null) {
      mRecorder.stop();
      mRecorder = null;
      mRenderer.setRecorder(null);
    }
  }

  //---------------------------------------------------------------------
  // PRIVATE...
  //---------------------------------------------------------------------
  private void init() {
    setEGLContextClientVersion(2);
    mRenderer = new MyRenderer(this);
    setRenderer(mRenderer);
    setRenderMode(GLSurfaceView.RENDERMODE_WHEN_DIRTY);
  }

  private void initCamera() {
    if (mCamera == null) {
      try {
        mCamera = Camera.open(mVideoParam.mCameraId);
        Camera.Parameters cp = mCamera.getParameters();
        cp.setPreviewSize(mVideoParam.mSize.width, mVideoParam.mSize.height);
        cp.setPreviewFpsRange(
            mVideoParam.mFpsRange[Camera.Parameters.PREVIEW_FPS_MIN_INDEX],
            mVideoParam.mFpsRange[Camera.Parameters.PREVIEW_FPS_MAX_INDEX]);
        mCamera.setParameters(cp);
        mRenderer.setCamera(mCamera);
      } catch (Exception e) {
        e.printStackTrace();
        throw new RuntimeException("setup camera");
      }
    }
  }

  private void quitCamera() {
    if (mCamera != null) {
      mCamera.stopPreview();
      mCamera.release();
      mCamera = null;
      mRenderer.setCamera(null);
    }
  }
}

Java Source Code List