How to use constructor on android 10,11

[trongtrong]

Hi, i have a problem when using libary on andoid 10,11.
i use this constructor

public GPUMp4Composer descriptor(final FileDescriptor srcFileDescriptor, @NonNull final FileDescriptor destFileDescriptor) { if (Build.VERSION.SDK_INT < 26) { throw new IllegalArgumentException("destFileDescriptor can not use"); } this.srcDataSource = new FileDescriptorDataSource(srcFileDescriptor); this.destPath = null; this.destFileDescriptor = destFileDescriptor; return this; }

I have srcFileDescriptor by method:
public static FileDescriptor getSrcFileDescriptior(Context context, Uri uri) { try { ParcelFileDescriptor parcelFileDescriptor = context.getContentResolver().openFileDescriptor(uri, "rw"); return parcelFileDescriptor.getFileDescriptor(); } catch (FileNotFoundException e) { e.printStackTrace(); } return null; }

i use bellow method to get destFileDescriptor :

`
public static FileDescriptor getDesFileDescriptior(Context context) {

    Uri uriSavedVideo = null;
    try {
        ContentResolver resolver = context.getContentResolver();
        ContentValues contentValues = new ContentValues();
        contentValues.put(MediaStore.Video.Media.TITLE, System.currentTimeMillis() / 1000);
        contentValues.put(MediaStore.Video.Media.DISPLAY_NAME, System.currentTimeMillis() / 1000);
        contentValues.put(MediaStore.Video.Media.MIME_TYPE, "video/mp4");
        contentValues.put(MediaStore.Video.Media.DATE_ADDED, System.currentTimeMillis() / 1000);

        Uri collection;
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
            collection = MediaStore.Video.Media.getContentUri(MediaStore.VOLUME_EXTERNAL);
            contentValues.put(MediaStore.Video.Media.RELATIVE_PATH, Environment.DIRECTORY_DCIM + context.getString(R.string.folder_app));

        } else {
            String videoPath = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM).toString() + "/" + "test.mp4";
            collection = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
            contentValues.put(MediaStore.Video.Media.DATA, videoPath);
        }
        uriSavedVideo = resolver.insert(collection, contentValues);

        return context.getContentResolver().openFileDescriptor(uriSavedVideo , "w").getFileDescriptor();

    } catch (Exception e) {
        e.printStackTrace();
    }
    return null;`

But when i run, I get the following error:

W/System.err: java.lang.NullPointerException: uri 2021-04-09 10:36:20.285 8431-8431/com.example.textonvideo W/System.err: at com.android.internal.util.Preconditions.checkNotNull(Preconditions.java:128) 2021-04-09 10:36:20.285 8431-8431/com.example.textonvideo W/System.err: at android.content.ContentResolver.openAssetFileDescriptor(ContentResolver.java:1233) 2021-04-09 10:36:20.285 8431-8431/com.example.textonvideo W/System.err: at android.content.ContentResolver.openFileDescriptor(ContentResolver.java:1106) 2021-04-09 10:36:20.285 8431-8431/com.example.textonvideo W/System.err: at android.content.ContentResolver.openFileDescriptor(ContentResolver.java:1060) 2021-04-09 10:36:20.285 8431-8431/com.example.textonvideo W/System.err: at com.videoart.textonvideo.utils.Utils.getDesFileDescriptior(Utils.java:109) 2021-04-09 10:36:20.286 8431-8431/com.example.textonvideo W/System.err: at com.videoart.textonvideo.services.VideoEditorService.composeMp4(VideoEditorService.java:114) 2021-04-09 10:36:20.286 8431-8431/com.example.textonvideo W/System.err: at com.videoart.textonvideo.services.VideoEditorService.onStartCommand(VideoEditorService.java:63) 2021-04-09 10:36:20.286 8431-8431/com.example.textonvideo W/System.err: at android.app.ActivityThread.handleServiceArgs(ActivityThread.java:3693) 2021-04-09 10:36:20.286 8431-8431/com.example.textonvideo W/System.err: at android.app.ActivityThread.-wrap22(Unknown Source:0) 2021-04-09 10:36:20.286 8431-8431/com.example.textonvideo W/System.err: at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1827) 2021-04-09 10:36:20.286 8431-8431/com.example.textonvideo W/System.err: at android.os.Handler.dispatchMessage(Handler.java:106) 2021-04-09 10:36:20.286 8431-8431/com.example.textonvideo W/System.err: at android.os.Looper.loop(Looper.java:164) 2021-04-09 10:36:20.287 8431-8431/com.example.textonvideo W/System.err: at android.app.ActivityThread.main(ActivityThread.java:7000) 2021-04-09 10:36:20.287 8431-8431/com.example.textonvideo W/System.err: at java.lang.reflect.Method.invoke(Native Method) 2021-04-09 10:36:20.287 8431-8431/com.example.textonvideo W/System.err: at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:441) 2021-04-09 10:36:20.287 8431-8431/com.example.textonvideo W/System.err: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1408)

how to solve this problem ?