Android Open Source - SpartanTimeLapseRecorder Video Time Lapse Recorder

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Back to project page SpartanTimeLapseRecorder.

License

The source code is released under:

GNU General Public License

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Java Source Code

/*
 * Spartan Time Lapse Recorder - Minimalistic android time lapse recording app
 * Copyright (C) 2014  Andreas Rohner//  w  w w .j a  va  2s.  c  o m
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package at.andreasrohner.spartantimelapserec.recorder;

import java.io.IOException;

import android.annotation.TargetApi;
import android.content.Context;
import android.media.CamcorderProfile;
import android.media.MediaRecorder;
import android.os.Build;
import android.os.Handler;
import android.util.Log;
import android.view.SurfaceHolder;
import at.andreasrohner.spartantimelapserec.R;
import at.andreasrohner.spartantimelapserec.data.RecSettings;

@TargetApi(Build.VERSION_CODES.HONEYCOMB)
public class VideoTimeLapseRecorder extends VideoRecorder {

  public VideoTimeLapseRecorder(RecSettings settings,
      SurfaceHolder surfaceHolder, Context context, Handler handler) {
    super(settings, surfaceHolder, context, handler);
  }

  protected void doRecord() throws IllegalStateException, IOException {
    mMediaRecorder.setOrientationHint(getCameraRotation(mSettings
        .getCameraId()));
    // no need for more sensor data
    disableOrientationSensor();

    mMediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);

    CamcorderProfile p = CamcorderProfile.get(mSettings.getCameraId(),
        mSettings.getRecProfile());
    p.videoFrameWidth = mSettings.getFrameWidth();
    p.videoFrameHeight = mSettings.getFrameHeight();
    mMediaRecorder.setProfile(p);

    mMediaRecorder.setCaptureRate(1000 / ((double) mSettings.getCaptureRate()));

    if (mRate != -1)
      mMediaRecorder.setVideoFrameRate(mRate);
    mMediaRecorder.setOutputFile(getOutputFile("mp4").getAbsolutePath());
    mMediaRecorder.setVideoSize(mSettings.getFrameWidth(),
        mSettings.getFrameHeight());

    if (mSettings.getStopRecAfter() > 0) {
      if (mRate != -1) {
        mRate = CamcorderProfile.get(mSettings.getCameraId(),
            mSettings.getRecProfile()).videoFrameRate;
      }

      int duration = (int) (((double) (mSettings.getStopRecAfter() / mSettings
          .getCaptureRate())) / mRate * 1000);

      if (duration < 500) {
        handleError(getClass().getSimpleName(),
            mContext.getString(R.string.pref_stop_recording_after)
                + " is too short in relation to the "
                + mContext.getString(R.string.pref_capture_rate));
        return;
      }

      mMediaRecorder.setMaxDuration(duration);
      mMediaRecorder.setOnInfoListener(this);
    }

    Log.i(getClass().getSimpleName(), "Starting video recording");
    mMediaRecorder.setOnErrorListener(this);

    mMediaRecorder.prepare();

    mMediaRecorder.start();
  }
}

Java Source Code List