アンドロイドでJCodecを使用している場合のArrayIndexOutOfBoundsExceptionの取得

Question

私の携帯電話の外部ストレージにある静止画像からビデオを作成しています。ビデオは、画像の自動スライドショーのようなものになります。私はそれのためにJCodecを使用しました。

以下は私のコードです。

import android.app.AlertDialog; 
import android.content.Context; 
import android.content.DialogInterface; 
import android.content.Intent; 
import android.content.res.Resources; 
import android.graphics.Bitmap; 
import android.graphics.BitmapFactory; 
import android.graphics.Canvas; 
import android.graphics.Color; 
import android.graphics.Paint; 
import android.graphics.Rect; 
import android.graphics.Typeface; 
import android.net.Uri; 
import android.os.Bundle; 
import android.os.Environment; 
import android.support.annotation.Nullable; 
import android.support.v7.app.AppCompatActivity; 
import android.util.Log; 
import org.jcodec.common.model.ColorSpace; 
import org.jcodec.common.model.Picture; 

import java.io.File; 
import java.io.IOException; 

public class VideoActivity extends AppCompatActivity{ 

@Override 
protected void onCreate(@Nullable Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    video(); 
    AlertDialog.Builder builder = new AlertDialog.Builder(this); 
    builder.setTitle("Video Created") // 
      .setMessage("Hi this video is created") // 
      .setPositiveButton("Play", new DialogInterface.OnClickListener() { 
       public void onClick(DialogInterface dialog, int id) { 
        // TODO 
        Log.d("dee","On Click on the play button"); 
        Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES)+ "/output97.mp4")); 
        intent.setDataAndType(Uri.parse(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES)+"/output97.mp4"), "video/mp4"); 
        startActivity(intent); 
        dialog.dismiss(); 
       } 
      }) // 
      .setNegativeButton(("Share"), new DialogInterface.OnClickListener() { 
       public void onClick(DialogInterface dialog, int id) { 
        Intent intent = new Intent(); 
        intent.setAction(Intent.ACTION_SEND); 
        Uri uri = Uri.fromFile(GetSDPathToFile("","output67.mp4")); 
        intent.putExtra(Intent.EXTRA_STREAM, uri); 
        intent.setDataAndType(uri, "video/*"); 
        intent.setType("video/mp4"); 
        startActivity(intent); 
        dialog.dismiss(); 
       } 
      }); 
    builder.show(); 

} 

public void video() { 
    try { 

     //Harsh bhaiya change the directory name in the GetSdToPath() Function in the belwo 1 lines 
     File file = this.GetSDPathToFile("", "output97.mp4"); 
     NewSequenceEncoder encoder = new NewSequenceEncoder(file); 
     File folder = new File(Environment.getExternalStorageDirectory() +"/numeros/fshhaq/") ; 
     File[] listFile = folder.listFiles(); 
     // only 5 frames in total 
     String text = "Numero"; 
     for (int i = 1; i <= listFile.length; i++) { 
      String _path=listFile[i-1].getAbsolutePath(); 
      Log.d("dee","pathhhhhhhhhhhh12"+_path); 
      BitmapFactory.Options options = new BitmapFactory.Options(); 
      options.inPreferredConfig = Bitmap.Config.ARGB_8888; 
      Bitmap bitmap = BitmapFactory.decodeFile(_path, options); 
      Bitmap mutableBitmap = bitmap.copy(Bitmap.Config.ARGB_8888, true); 
      //Log.d("dee","reached here"); 
      Log.d("dee","image " + i); 
      Typeface tf = Typeface.create("Helvitica", Typeface.NORMAL); 
      Paint paint = new Paint(); 
      paint.setStyle(Paint.Style.FILL); 
      paint.setColor(Color.WHITE); 
      paint.setTypeface(tf); 
      Log.d("dee","reached before the typface"); 
      paint.setTextAlign(Paint.Align.CENTER); 
      paint.setTextSize(convertToPixels(getApplicationContext(),16)); 
      Rect textRect = new Rect(); 
      Log.d("dee","created the rectange"); 
      paint.getTextBounds(text, 0, text.length(), textRect); 
      //   Log.d("dee","reached here2"); 
      Canvas canvas = new Canvas(mutableBitmap); 
      Log.d("dee","reached here3"); 

      //If the text is bigger than the canvas , reduce the font size 
      if (textRect.width() >= (canvas.getWidth() - 4))  //the padding on either sides is considered as 4, so as to appropriately fit in the text 
      { 
       Log.d("dee", "Let us know"); 
       paint.setTextSize(convertToPixels(getApplicationContext(), 7));  //Scaling needs to be used for different dpi's 
      } 
      //Calculate the positions 
      int xPos= (canvas.getWidth() -105);  //-2 is for regulating the x position offset 
      Log.d("dee","reached the jesus"); 
      Log.d("dee",canvas.getWidth() + ""); 
      Log.d("dee",canvas.getWidth() + " sbjgbsdj " + canvas.getHeight()); 
      //"- ((paint.descent() + paint.ascent())/2)" is the distance from the baseline to the center. 
      int yPos = (int) ((canvas.getHeight())-50); 
      canvas.drawText("00O", xPos, yPos, paint); 
      //int bitmapResId = this.getB.getIdentifier("image" + (i),"drawable", this.getPackageName()); 
      //Log.d("dee", this.getResources().getIdentifier("image" + (i), "drawable", this.getPackageName()) + " " +" is the no"); 
      Log.d("dee","image "+i+"This is the required image number"); 
      //Log.d("dee",this.getBitmapFromResources(getApplicationContext().getResources(),bitmapResId).toString()); 
      // Bitmap bitmap = getBitmapFromResources(this.getResources(), bitmapResId); 
      //Log.d("dee",R.drawable.class.getResource().l +" fields in drawable"); 
      //BitmapDrawable bitmap1 = this.writeTextOnDrawable(bitmapResId,"NUMERO",getApplicationContext()); 
      Picture pic = this.fromBitmap(mutableBitmap); 
      //Toast.makeText(getApplicationContext(),"Image +" + i,Toast.LENGTH_SHORT).show(); 
      Log.d("dee",pic.getColor() +" "+pic.createCompatible()); 
      encoder.encodeNativeFrame(pic); 
      Log.d("dee","reached here4"); 
     } 
     Log.d("dee","reached here5"); 
     // int bitmapResId = this.getResources().getIdentifier("image6", "drawable", this.getPackageName()); 
     //Log.d("dee",this.getBitmapFromResources(getApplicationContext().getResources(),bitmapResId).toString()); 
     //Bitmap bitmapp = getBitmapFromResources(this.getResources(), bitmapResId); 
     Log.d("dee","reached here6"); 
     // Picture pic = this.fromBitmap((bitmapp)); 
     //Log.d("dee",pic.getWidth() + " " + pic.getHeight()); 
     Log.d("dee","reached here7"); 
     //encoder.encodeNativeFrame(pic); 
     Log.d("dee","reached here9"); 
     encoder.finish(); 
     Log.d("dee","reached here8"); 
    } catch (IOException e) { 
     e.printStackTrace(); 
    } 
} 

private Bitmap getBitmapFromResources(Resources resources, int bitmapResId) { 
    return BitmapFactory.decodeResource(resources, bitmapResId); 
} 
//Change the path in the below function harsh bhaiya 
protected File GetSDPathToFile(String filePatho, String fileName) { 
    File extBaseDir = Environment.getExternalStoragePublicDirectory(
      Environment.DIRECTORY_PICTURES); 
    Log.d("dee", Environment.getExternalStoragePublicDirectory(
      Environment.DIRECTORY_PICTURES).toString()); 
    if (filePatho == null || filePatho.length() == 0 || filePatho.charAt(0) != '/') 
     filePatho = "/" + filePatho; 
    createDirIfNotExists(filePatho); 
    File file = new File(extBaseDir.getAbsoluteFile() + filePatho); 
    return new File(file.getAbsolutePath() + "/" + fileName);// file; 
} 


//cahnge in this one too 
public static boolean createDirIfNotExists(String path) { 
    boolean ret = true; 
    File file = new File(Environment.getExternalStoragePublicDirectory(
      Environment.DIRECTORY_PICTURES), path); 
    if (!file.exists()) { 
     if (!file.mkdirs()) { 
      Log.e("TravellerLog :: ", "Problem creating Image folder"); 
      ret = false; 
     } 
    } 
    return ret; 
} 

public Picture fromBitmap(Bitmap src) { 
    Picture dst = Picture.create(src.getWidth(), src.getHeight(), ColorSpace.RGB); 
    fromBitmap(src, dst); 
    Log.d("dee", dst.getWidth() + ""); 
    return dst; 
} 
public void fromBitmap(Bitmap src, Picture dst) { 
    int[] dstData = dst.getPlaneData(0); 
    int[] packed = new int[src.getWidth() * src.getHeight()*4]; 

    src.getPixels(packed, 0, src.getWidth(), 0, 0, src.getWidth(), src.getHeight()); 

    for (int i = 0, srcOff = 0, dstOff = 0; i < src.getHeight(); i++) { 
     for (int j = 0; j < src.getWidth(); j++, srcOff++, dstOff += 3) { 
      int rgb = packed[srcOff]; 
      dstData[dstOff]  = (rgb >> 16) & 0xff; 
      dstData[dstOff + 1] = (rgb >> 8) & 0xff; 
      dstData[dstOff + 2] = rgb & 0xff; 
     } 
    } 
} 
public static int convertToPixels(Context context, int nDP) 
{ 
    final float conversionScale = context.getResources().getDisplayMetrics().density; 
    return (int) ((nDP * conversionScale) + 0.5f) ; 
} 

} 

ArrayIndexOutOfBoundsExceptionエラーが発生しました。続き は、誰もが私が間違っているつもりですどこ私はお勧めできlogcat

Process: org.example.android.numero, PID: 8567 java.lang.RuntimeException: Unable to start activity ComponentInfo{org.example.android.numero/org.example.android.numero.VideoActivity}: java.lang.ArrayIndexOutOfBoundsException: length=589824; index=589824 
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2305) 
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2365) 
    at android.app.ActivityThread.access$800(ActivityThread.java:147) 
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1283) 
    at android.os.Handler.dispatchMessage(Handler.java:102) 
    at android.os.Looper.loop(Looper.java:135) 
    at android.app.ActivityThread.main(ActivityThread.java:5237) 
    at java.lang.reflect.Method.invoke(Native Method) 
    at java.lang.reflect.Method.invoke(Method.java:372) 
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:912) 
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:707) 
Caused by: java.lang.ArrayIndexOutOfBoundsException: length=589824; index=589824 
    at org.jcodec.scale.RgbToYuv420j.rgb2yuv(RgbToYuv420j.java:72) 
    at org.jcodec.scale.RgbToYuv420j.transform(RgbToYuv420j.java:38) 
    at org.example.android.numero.NewSequenceEncoder.encodeNativeFrame(NewSequenceEncoder.java:68) 
    at org.example.android.numero.VideoActivity.video(VideoActivity.java:124) 
    at org.example.android.numero.VideoActivity.onCreate(VideoActivity.java:36) 
    at android.app.Activity.performCreate(Activity.java:5982) 
    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105) 
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2258) 
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2365)  
    at android.app.ActivityThread.access$800(ActivityThread.java:147)  
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1283)  
    at android.os.Handler.dispatchMessage(Handler.java:102)  
    at android.os.Looper.loop(Looper.java:135)  
    at android.app.ActivityThread.main(ActivityThread.java:5237)  
    at java.lang.reflect.Method.invoke(Native Method)  
    at java.lang.reflect.Method.invoke(Method.java:372)  
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:912)  
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:707) 

のですか？ 画像の解像度に問題があると感じました。

編集：ビデオの1秒あたりのフレーム数を制御するために、JCodec（sequenceEncoder）〜newSequenceEncoderのメソッドをオーバーライドしました。

Answer 1

ので、ループ以下に、あなたは、配列の長さに等しくうとしているが、配列は、それがこの

for(int i = 1; i < listFile.length; i++) 

プラスあなたが不足していることを仮定0から始まり、length-1

for(int i = 1; i <= listFile.length; i++) 

を行きます最初のファイル名は1から開始する必要があります。

for(int i = 0; i < listFile.length; i++)