Nuri Tasdemir Nuri Tasdemir - 1 year ago 118
Java Question

How can I get a frame sample (jpeg) from a video (mov)

I want to get a frame sample (jpeg) from a video file (mov) with java. Is there an easy way to do this. When I search in google all I can find is to make mov from multiple jpgs. I dont know maybe I cannot find the right keywords.

Answer Source

Xuggler does the job. They even give a sample code which does exactly what I need. Link is below

And I've modified the code in this link such that it saves only the first frame of the video.

import javax.imageio.ImageIO;


import java.awt.image.BufferedImage;

import com.xuggle.mediatool.IMediaReader;
import com.xuggle.mediatool.MediaListenerAdapter;
import com.xuggle.mediatool.ToolFactory;
import com.xuggle.mediatool.event.IVideoPictureEvent;
import com.xuggle.xuggler.Global;

 *  * @author aclarke
 *    @author trebor

public class DecodeAndCaptureFrames extends MediaListenerAdapter
  private int mVideoStreamIndex = -1;
  private boolean gotFirst = false;
  private String saveFile;
  private Exception e;
  /** Construct a DecodeAndCaptureFrames which reads and captures
   * frames from a video file.
   * @param filename the name of the media file to read

  public DecodeAndCaptureFrames(String videoFile, String saveFile)throws Exception
    // create a media reader for processing video
    this.saveFile = saveFile;
    this.e = null;
     IMediaReader reader = ToolFactory.makeReader(videoFile);

    // stipulate that we want BufferedImages created in BGR 24bit color space

    // note that DecodeAndCaptureFrames is derived from
    // MediaReader.ListenerAdapter and thus may be added as a listener
    // to the MediaReader. DecodeAndCaptureFrames implements
    // onVideoPicture().


    // read out the contents of the media file, note that nothing else
    // happens here.  action happens in the onVideoPicture() method
    // which is called when complete video pictures are extracted from
    // the media source

      while (reader.readPacket() == null && !gotFirst);

      if (e != null)
          throw e;

   * Called after a video frame has been decoded from a media stream.
   * Optionally a BufferedImage version of the frame may be passed
   * if the calling {@link IMediaReader} instance was configured to
   * create BufferedImages.
   * This method blocks, so return quickly.

  public void onVideoPicture(IVideoPictureEvent event)
      // if the stream index does not match the selected stream index,
      // then have a closer look

      if (event.getStreamIndex() != mVideoStreamIndex)
        // if the selected video stream id is not yet set, go ahead an
        // select this lucky video stream

        if (-1 == mVideoStreamIndex)
          mVideoStreamIndex = event.getStreamIndex();

        // otherwise return, no need to show frames from this video stream


      ImageIO.write(event.getImage(), "jpg", new File(saveFile));
      gotFirst = true;

    catch (Exception e)
      this.e = e;
Recommended from our users: Dynamic Network Monitoring from WhatsUp Gold from IPSwitch. Free Download