android - error on editing metadata org.apache.sanselan.ImageReadException: Couldn't read magic numbers to guess format -


i have video capture , video gallery image trying add custom metadata using sanselan library in android have got org.apache.sanselan.imagereadexception: couldn't read magic numbers guess exception.i have tried everywhere didnt solution.please me

this did

    file storagedirectory = environment.getexternalstoragepublicdirectory(environment.directory_pictures);     file image = file.createtempfile(imagefilename, ".jpg", storagedirectory);     imagefilelocation = image.getabsolutepath();     file dst = file.createtempfile(imagefilename, ".jpg", storagedirectory);     try {         new testgps().changeexifmetadata(image, dst);         system.out.println("data has been changed successfull!");         imagefilelocation = dst.getabsolutepath();

testgps.java

public class testgps { double db=0.3;  /**  * example illustrates how add/update exif metadata in jpeg file.  *  * @param jpegimagefile source image file.  * @param dst           output file.  * @throws ioexception  * @throws imagereadexception  * @throws imagewriteexception  */ public void changeexifmetadata(file jpegimagefile, file dst)         throws ioexception, imagereadexception, imagewriteexception {     outputstream os = null;     try {         tiffoutputset outputset = null;          // note metadata might null if no metadata found.         iimagemetadata metadata = sanselan.getmetadata(jpegimagefile);         jpegimagemetadata jpegmetadata = (jpegimagemetadata) metadata;         if (null != jpegmetadata) {             // note exif might null if no exif metadata found.             tiffimagemetadata exif = jpegmetadata.getexif();              if (null != exif) {                 // tiffimagemetadata class immutable (read-only).                 // tiffoutputset class represents exif data write.                 //                 // usually, want update existing exif metadata                 // changing                 // values of few fields, or adding field.                 // in these cases, easiest use getoutputset()                 // start "copy" of fields read image.                 outputset = exif.getoutputset();             }         }          // if file not contain exif metadata, create empty         // set of exif metadata. otherwise, keep of other         // existing tags.         if (null == outputset)             outputset = new tiffoutputset();          {             // example of how add field/tag output set.             //             // note should first remove field/tag if             // exists in directory, or may end duplicate             // tags. see above.             //             // fields/tags expected in exif directories;             // others can occur in more 1 directory (and have             // different meaning in different directories).             //             // taginfo constants contain description of             // directories associated given tag.             //             // see             // org.apache.sanselan.formats.tiff.constants.alltagconstants             //              tiffoutputfield aperture = tiffoutputfield.create(                     tiffconstants.exif_tag_aperture_value,                     outputset.byteorder, new double(db));             tiffoutputdirectory exifdirectory = outputset                     .getorcreateexifdirectory();             // make sure remove old value if present (this method             // not fail if tag not exist).             exifdirectory.removefield(tiffconstants.exif_tag_aperture_value);             exifdirectory.add(aperture);         }          {             // example of how add/update gps info output set.              // new york city             double longitude = -74.0; // 74 degrees w (in degrees east)             double latitude = 40 + 43 / 60.0; // 40 degrees n (in degrees             // north)              outputset.setgpsindegrees(longitude, latitude);         }          // printtagvalue(jpegmetadata, tiffconstants.tiff_tag_date_time);          //os = new fileoutputstream(dst);          new exifrewriter().updateexifmetadatalossless(jpegimagefile, os,                 outputset);          os.close();         os = null;     } {         if (os != null)             try {                 os.close();             } catch (ioexception e) {              }     } } }


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