android.media.MediaRecorder#setPreviewDisplay ( )源码实例Demo

下面列出了android.media.MediaRecorder#setPreviewDisplay ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。

源代码1 项目： VideoRecorderTest 文件： MainActivity.java

private boolean prepareMediaRecorder() {
    mMediaRecorder = new MediaRecorder();
    mCamera.unlock();
    mMediaRecorder.setCamera(mCamera);
    mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.CAMCORDER);
    mMediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
    mMediaRecorder.setProfile(CamcorderProfile.get(CamcorderProfile.QUALITY_1080P));
    mMediaRecorder.setPreviewDisplay(mHolder.getSurface());
    String path = getSDPath();
    if (path != null) {

        File dir = new File(path + "/VideoRecorderTest");
        if (!dir.exists()) {
            dir.mkdir();
        }
        path = dir + "/" + getDate() + ".mp4";
        mMediaRecorder.setOutputFile(path);
        try {
            mMediaRecorder.prepare();
        } catch (IOException e) {
            releaseMediaRecorder();
            e.printStackTrace();
        }
    }
    return true;
}

源代码2 项目： BluetoothCameraAndroid 文件： CameraActivity.java

@Override
public void startRecording(Camera.PreviewCallback previewCallback) {
    recording = true;
    mCamera.unlock();
    mRecordbutton.setBackgroundResource(R.drawable.red_circle_background);
    mMediaRecorder = new MediaRecorder();
    mMediaRecorder.setCamera(mCamera);
    mMediaRecorder.setPreviewDisplay(mSurfaceHolder.getSurface());
    mMediaRecorder.setOutputFile("/sdcard/Video.mp4");
    mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
    mMediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
    mMediaRecorder.setOrientationHint(90);
    mMediaRecorder.setProfile(CamcorderProfile.get(CamcorderProfile.QUALITY_HIGH));

    try {
        mMediaRecorder.prepare();
        mMediaRecorder.start();
        mCamera.startPreview();
        mCamera.setPreviewCallback(previewCallback);
    } catch (IOException e) {
        e.printStackTrace();
    }
}

源代码3 项目： BluetoothCameraAndroid 文件： TestActivity.java

protected void startRecording() throws IOException {
    mMediaRecorder = new MediaRecorder();  // Works well
    mCamera.unlock();

    mMediaRecorder.setCamera(mCamera);

    mMediaRecorder.setPreviewDisplay(mSurfaceHolder.getSurface());
    mMediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
    mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);

    mMediaRecorder.setProfile(CamcorderProfile.get(CamcorderProfile.QUALITY_HIGH));
    mMediaRecorder.setOutputFile("/sdcard/zzzz.mp4");

    mMediaRecorder.prepare();
    mMediaRecorder.start();
}

源代码4 项目： FamilyChat 文件： MediaRecorderSystemImpl.java

@Override
public void initRecorder(Camera camera, int cameraId, Surface surface, String filePath)
{
    mMediaRecorder = new MediaRecorder();
    mMediaRecorder.reset();
    if (camera != null)
        mMediaRecorder.setCamera(camera);
    mMediaRecorder.setOnErrorListener(this);
    mMediaRecorder.setPreviewDisplay(surface);
    mMediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);//视频源
    mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);//音频源
    mMediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);//视频输出格式 也可设为3gp等其他格式
    mMediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);//音频格式
    mMediaRecorder.setVideoSize(640, 480);//设置分辨率，市面上大多数都支持640*480
    //        mediaRecorder.setVideoFrameRate(25);//设置每秒帧数 这个设置有可能会出问题，有的手机不支持这种帧率就会录制失败，这里使用默认的帧率，当然视频的大小肯定会受影响
    //这里设置可以调整清晰度
    mMediaRecorder.setVideoEncodingBitRate(2 * 1024 * 512);

    if (cameraId == Camera.CameraInfo.CAMERA_FACING_BACK)
        mMediaRecorder.setOrientationHint(90);
    else
        mMediaRecorder.setOrientationHint(270);
    mMediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.H264);//视频录制格式
    mMediaRecorder.setOutputFile(filePath);
}

源代码5 项目： NIM_Android_UIKit 文件： CaptureVideoActivity.java

private boolean startRecorderInternal() throws Exception {
    shutdownCamera();
    if (!initCamera()) {
        return false;
    }
    switchCamera.setVisibility(View.GONE);
    mediaRecorder = new MediaRecorder();
    camera.unlock();
    mediaRecorder.setCamera(camera);
    mediaRecorder.setAudioSource(MediaRecorder.AudioSource.CAMCORDER);
    mediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
    setCamcorderProfile();
    mediaRecorder.setPreviewDisplay(surfaceHolder.getSurface());
    mediaRecorder.setMaxDuration(1000 * VIDEO_TIMES);
    mediaRecorder.setOutputFile(filename);
    setVideoOrientation();
    mediaRecorder.prepare();
    mediaRecorder.start();
    return true;
}

源代码6 项目： CameraView 文件： JCameraView.java

private void startRecord() {
    mediaRecorder = new MediaRecorder();
    mediaRecorder.reset();
    mCamera.unlock();
    // 设置录制视频源为Camera(相机)
    mediaRecorder.setCamera(mCamera);
    mediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
    mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
    // 设置录制完成后视频的封装格式THREE_GPP为3gp.MPEG_4为mp4
    mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
    // 设置录制的视频编码h263 h264
    mediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.H264);
    mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
    // 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
    mediaRecorder.setVideoSize(width, height);
    // 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
    if (SELECTED_CAMERA == CAMERA_FRONT_POSITION) {
        mediaRecorder.setOrientationHint(270);
    } else {
        mediaRecorder.setOrientationHint(90);
    }
    mediaRecorder.setMaxDuration(10000);
    mediaRecorder.setVideoEncodingBitRate(5 * 1024 * 1024);
    mediaRecorder.setVideoFrameRate(20);
    mediaRecorder.setPreviewDisplay(mHolder.getSurface());
    // 设置视频文件输出的路径
    mediaRecorder.setOutputFile("/sdcard/love.mp4");
    try {
        //准备录制
        mediaRecorder.prepare();
        // 开始录制
        mediaRecorder.start();
    } catch (IOException e) {
        e.printStackTrace();
    }
}

源代码7 项目： WhatsAppCamera 文件： WhatsappCameraActivity.java

@SuppressLint("SimpleDateFormat")
protected boolean prepareMediaRecorder() throws IOException {

    mediaRecorder = new MediaRecorder(); // Works well
    camera.stopPreview();
    camera.unlock();
    mediaRecorder.setCamera(camera);
    mediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
    mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
    if (flag == 1) {
        mediaRecorder.setProfile(CamcorderProfile.get(1, CamcorderProfile.QUALITY_HIGH));
    } else {
        mediaRecorder.setProfile(CamcorderProfile.get(CamcorderProfile.QUALITY_HIGH));
    }
    mediaRecorder.setPreviewDisplay(surfaceHolder.getSurface());

    mediaRecorder.setOrientationHint(mOrientation);

    if (Build.MODEL.equalsIgnoreCase("Nexus 6") && flag == 1) {

        if (mOrientation == 90) {
            mediaRecorder.setOrientationHint(mOrientation);
        } else if (mOrientation == 180) {
            mediaRecorder.setOrientationHint(0);
        } else {
            mediaRecorder.setOrientationHint(180);
        }

    } else if (mOrientation == 90 && flag == 1) {
        mediaRecorder.setOrientationHint(270);
    } else if (flag == 1) {
        mediaRecorder.setOrientationHint(mOrientation);
    }
    mediaFileName = "wc_vid_" + System.currentTimeMillis();
    mediaRecorder.setOutputFile(folder.getAbsolutePath() + "/" + mediaFileName + ".mp4"); // Environment.getExternalStorageDirectory()

    mediaRecorder.setOnInfoListener(new MediaRecorder.OnInfoListener() {

        public void onInfo(MediaRecorder mr, int what, int extra) {
            // TODO Auto-generated method stub

            if (what == MediaRecorder.MEDIA_RECORDER_INFO_MAX_FILESIZE_REACHED) {

                long downTime = 0;
                long eventTime = 0;
                float x = 0.0f;
                float y = 0.0f;
                int metaState = 0;
                MotionEvent motionEvent = MotionEvent.obtain(
                        downTime,
                        eventTime,
                        MotionEvent.ACTION_UP,
                        0,
                        0,
                        metaState
                );

                imgCapture.dispatchTouchEvent(motionEvent);

                Toast.makeText(WhatsappCameraActivity.this, "You reached to Maximum(25MB) video size.", Toast.LENGTH_SHORT).show();
            }


        }
    });

    mediaRecorder.setMaxFileSize(1000 * 25 * 1000);

    try {
        mediaRecorder.prepare();
    } catch (Exception e) {
        releaseMediaRecorder();
        e.printStackTrace();
        return false;
    }
    return true;

}

源代码8 项目： glass_snippets 文件： CameraService.java

@Override
public void surfaceCreated(SurfaceHolder surfaceHolder) {
	camera = Camera.open();
	try {
		mediaRecorder = new MediaRecorder();

		List<int[]> fps = camera.getParameters().getSupportedPreviewFpsRange();
		int preview_fps[] = fps.get(0);

		for (int i[] : camera.getParameters().getSupportedPreviewFpsRange())
			preview_fps = (mCaptureRate <= i[1] && mCaptureRate > i[0]) ? i : preview_fps;

		Camera.Parameters param = camera.getParameters();
		param.setVideoStabilization(true);
		param.setPreviewFpsRange(preview_fps[0], preview_fps[1]);
		camera.setParameters(param);
		camera.unlock();

		mediaRecorder.setPreviewDisplay(surfaceHolder.getSurface());
		mediaRecorder.setCamera(camera);

		mediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
		CamcorderProfile profile;
		if (mCaptureRate > 25) {
			mediaRecorder.setAudioSource(MediaRecorder.AudioSource.DEFAULT);
			profile = CamcorderProfile.get(CamcorderProfile.QUALITY_HIGH);
		} else {
			profile = CamcorderProfile.get(CamcorderProfile.QUALITY_TIME_LAPSE_HIGH);
			mediaRecorder.setCaptureRate(mCaptureRate);
			profile.videoFrameRate = ((int) Math.ceil(mCaptureRate));
		}

		mediaRecorder.setProfile(profile);
		mediaRecorder.setOutputFile(mOutFile);

		mediaRecorder.prepare();
		mediaRecorder.start();

		ScaleAnimation a = new ScaleAnimation(3, 2, 3, 2);
		a.setDuration(2000);
		surfaceView.startAnimation(a);

		Log.i(TAG, String.format("recording %s with rate %.2f", mOutFile, mCaptureRate));
	} catch(Exception e) {
		onDestroy();
		Log.d(TAG, e.toString());
	}
}