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• Compress Videos using FFMPEG and JNI

  1er octobre 2014, par Mr.G

  I want to create an android application which can locate a video file (which is more than 300 mb) and compress it to lower size mp4 file.

  i already tried to do it with this

  This tutorial is a very effective since you ’re compressing a small size video (below than 100 mb)

  So i tried to implement it using JNI .

  i managed to build ffmpeg using this

  But currently what I want to do is to compress videos . I don’t have very good knowledge on JNI. But i tried to understand it using following link

  If some one can guide me the steps to compress video after open file it using JNI that whould really great , thanks

• Path and bundle strings have different number of entries ; invalid manifest : xuggle-xuggler

  7 décembre 2013, par henrycharles

  I am new to multimedia.I want to make a project for live video chat in java. Googling around I found about Xuggler.I successfully downloaded all the jars given in this How do you install the latest version of Xuggler (5.4, as of 18/05/2013) in eclipse ? .

  

  and tried executing sample code from http://www.javacodegeeks.com/2011/02/xuggler-tutorial-frames-capture-video.html I am not getting any compilation error but the following runtime error. Any help would be much appreciated.

  com.xuggle.ferry.JNIManifest - path and bundle strings have different number of entries ; invalid manifest : xuggle-xuggler

  import java.awt.image.BufferedImage;
  
  import java.io.File;
  
  import java.io.IOException;
  
  
  
  import javax.imageio.ImageIO;
  
  
  
  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;
  
  
  
  public class ABC {
  
  
  
      public static final double SECONDS_BETWEEN_FRAMES = 10;
  
  
  
      private static final String inputFilename = "D://ab.mp4";
  
      private static final String outputFilePrefix = "c://snapshots//mysnapshot";
  
  
  
      // The video stream index, used to ensure we display frames from one and
  
      // only one video stream from the media container.
  
      private static int mVideoStreamIndex = -1;
  
  
  
      // Time of last frame write
  
      private static long mLastPtsWrite = Global.NO_PTS;
  
  
  
      public static final long MICRO_SECONDS_BETWEEN_FRAMES = 
  
          (long)(Global.DEFAULT_PTS_PER_SECOND * SECONDS_BETWEEN_FRAMES);
  
  
  
      public static void main(String[] args) {
  
  
  
  
  
  
  
  
  
          IMediaReader mediaReader = ToolFactory.makeReader(inputFilename);
  
  
  
          // stipulate that we want BufferedImages created in BGR 24bit color space
  
          mediaReader.setBufferedImageTypeToGenerate(BufferedImage.TYPE_3BYTE_BGR);
  
  
  
          mediaReader.addListener(new ImageSnapListener());
  
  
  
          // read out the contents of the media file and
  
          // dispatch events to the attached listener
  
          while (mediaReader.readPacket() == null) ;
  
  
  
      }
  
  
  
      private static class ImageSnapListener extends MediaListenerAdapter {
  
  
  
          public void onVideoPicture(IVideoPictureEvent event) {
  
  
  
              if (event.getStreamIndex() != mVideoStreamIndex) {
  
                  // if the selected video stream id is not yet set, go ahead an
  
                  // select this lucky video stream
  
                  if (mVideoStreamIndex == -1)
  
                      mVideoStreamIndex = event.getStreamIndex();
  
                  // no need to show frames from this video stream
  
                  else
  
                      return;
  
              }
  
  
  
              // if uninitialized, back date mLastPtsWrite to get the very first frame
  
              if (mLastPtsWrite == Global.NO_PTS)
  
                  mLastPtsWrite = event.getTimeStamp() - MICRO_SECONDS_BETWEEN_FRAMES;
  
  
  
              // if it's time to write the next frame
  
              if (event.getTimeStamp() - mLastPtsWrite >= 
  
                      MICRO_SECONDS_BETWEEN_FRAMES) {
  
  
  
                  String outputFilename = dumpImageToFile(event.getImage());
  
  
  
                  // indicate file written
  
                  double seconds = ((double) event.getTimeStamp()) / 
  
                      Global.DEFAULT_PTS_PER_SECOND;
  
                  System.out.printf(
  
                          "at elapsed time of %6.3f seconds wrote: %s\n",
  
                          seconds, outputFilename);
  
  
  
                  // update last write time
  
                  mLastPtsWrite += MICRO_SECONDS_BETWEEN_FRAMES;
  
              }
  
  
  
          }
  
  
  
          private String dumpImageToFile(BufferedImage image) {
  
              try {
  
                  String outputFilename = outputFilePrefix + 
  
                       System.currentTimeMillis() + ".png";
  
                  ImageIO.write(image, "png", new File(outputFilename));
  
                  return outputFilename;
  
              } 
  
              catch (IOException e) {
  
                  e.printStackTrace();
  
                  return null;
  
              }
  
          }
  
  
  
      }
  
  
  
  }

• Encoder (codec none) not found for output stream #0:1 [on hold]

  16 novembre 2013, par Gururak

  Hi i built ffmpeg executable on Redhat5. I want to mix two Audio using the command multiple
  "ffmpeg -i INPUT1 -i INPUT2 -i INPUT3 -filter_complex amix=inputs=3:duration=first:dropout_transition=3 OUTPUT.mp3".

  I enabled libflamemp3 library without any error.

  [root@localhost ~]# ffmpeg -i /root/media/Katlalli.mp3 -i /root/media/Katlalli.mp3 -filter_complex amix=inputs=2:duration=first:dropout_transition=2 /root/media/OUTPutnew123.mp3
  
  ffmpeg version 2.1 Copyright (c) 2000-2013 the FFmpeg developers
  
    built on Nov 14 2013 03:17:10 with gcc 4.1.2 (GCC) 20080704 (Red Hat 4.1.2-46)
  
    configuration: --enable-libmp3lame
  
    libavutil      52. 48.100 / 52. 48.100
  
    libavcodec     55. 39.100 / 55. 39.100
  
    libavformat    55. 19.104 / 55. 19.104
  
    libavdevice    55.  5.100 / 55.  5.100
  
    libavfilter     3. 90.100 /  3. 90.100
  
    libswscale      2.  5.101 /  2.  5.101
  
    libswresample   0. 17.104 /  0. 17.104
  
  [mp3 @ 0x193ef240] Estimating duration from bitrate, this may be inaccurate
  
  Input #0, mp3, from '/root/media/Katlalli.mp3':
  
    Metadata:
  
      artist          : Yograj Bhat
  
      title           : Katlalli Karadige
  
      track           : 3
  
      album           : Paramathma
  
      album_artist    : Puneet Rajkumar
  
      genre           : Kannada
  
      composer        : V.Harikrishna
  
      date            : 2011
  
    Duration: 00:04:41.46, start: 0.000000, bitrate: 191 kb/s
  
      Stream #0:0: Audio: mp3, 44100 Hz, stereo, s16p, 192 kb/s
  
      Stream #0:1: Video: mjpeg, yuvj420p(pc), 200x200 [SAR 96:96 DAR 1:1], 90k tbr, 90k tbn, 90k tbc
  
      Metadata:
  
        title           : thumbnail
  
        comment         : Cover (front)
  
  [mp3 @ 0x194090a0] Estimating duration from bitrate, this may be inaccurate
  
  Input #1, mp3, from '/root/media/Katlalli.mp3':
  
    Metadata:
  
      artist          : Yograj Bhat
  
      title           : Katlalli Karadige
  
      track           : 3
  
      album           : Paramathma
  
      album_artist    : Puneet Rajkumar
  
      genre           : Kannada
  
      composer        : V.Harikrishna
  
      date            : 2011
  
    Duration: 00:04:41.46, start: 0.000000, bitrate: 191 kb/s
  
      Stream #1:0: Audio: mp3, 44100 Hz, stereo, s16p, 192 kb/s
  
      Stream #1:1: Video: mjpeg, yuvj420p(pc), 200x200 [SAR 96:96 DAR 1:1], 90k tbr, 90k tbn, 90k tbc
  
      Metadata:
  
        title           : thumbnail
  
        comment         : Cover (front)
  
  File '/root/media/OUTPutnew123.mp3' already exists. Overwrite ? [y/N] y
  
  Output #0, mp3, to '/root/media/OUTPutnew123.mp3':
  
    Metadata:
  
      artist          : Yograj Bhat
  
      title           : Katlalli Karadige
  
      track           : 3
  
      album           : Paramathma
  
      album_artist    : Puneet Rajkumar
  
      genre           : Kannada
  
      composer        : V.Harikrishna
  
      date            : 2011
  
      Stream #0:0: Audio: mp3, 44100 Hz, stereo, fltp (default)
  
      Stream #0:1: Video: none, q=2-31, 128 kb/s, 90k tbn
  
      Metadata:
  
        title           : thumbnail
  
        comment         : Cover (front)
  
  Stream mapping:
  
    Stream #0:0 (mp3) -> amix:input0
  
    Stream #1:0 (mp3) -> amix:input1
  
    amix -> Stream #0:0 (libmp3lame)
  
    Stream #0:1 -> #0:1 (mjpeg -> ?)
  
  Encoder (codec none) not found for output stream #0:1

  But when i try to combine two mp3 audio,
  "ffmpeg -i INPUT1 -i INPUT2 -i INPUT3 -filter_complex amix=inputs=3:duration=first:dropout_transition=3 OUTPUT.mp3".

  I am getting error like

  "Encoder (codec none) not found for output stream #0:1"

  so please help me how to link or install "libmp3flame" on Redhat5.