java - mp4parser rotate and save video -


i need rotate video 90 degrees in android project. after googling stopped @ mp4parser can integrated android. video stored on device , saved there (not sure if different name, doesn't matter much). here code i'm using (made isoviewer-1.0-rc-35), can change library version 2.0 if needed: 

try  {     string inputvideoname = "path_to_a_video";      isofile out =  new isofile(inputvideoname);     out.getmoviebox().getmovieheaderbox().setmatrix(matrix.rotate_90);      file outputvideoname = new file("path_to_a_saved_processed_video");     if (!outputvideoname.exists())         outputvideoname.createnewfile();      fileoutputstream fos = new fileoutputstream(outputvideoname);     out.writecontainer(fos.getchannel());     fos.close();     out.close(); }  catch (ioexception e) {     log.e("test", "some exception", e); }

the code compiles, runs, saves video original rotation, no changes done it. what's wrong?

does help? don't think should use isoparser isoviewer this?

package com.googlecode.mp4parser;  import com.googlecode.mp4parser.authoring.movie; import com.googlecode.mp4parser.authoring.builder.defaultmp4builder; import com.googlecode.mp4parser.authoring.container.mp4.moviecreator; import com.googlecode.mp4parser.util.matrix;  import java.io.fileoutputstream;  import java.io.ioexception;   public class rotate { public static void main(string[] args) throws ioexception {      string f1 = appendexample.class.getprotectiondomain().getcodesource().getlocation().getfile() + "/1365070268951.mp4";      movie inmovie = moviecreator.build(f1);     inmovie.setmatrix(matrix.rotate_90);      new defaultmp4builder().build(inmovie).writecontainer(new fileoutputstream("output.mp4").getchannel()); } }

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