When I get bitmap for mp4 file with: ThumbnailUtils.createVideoThumbnail(mediaFile.getAbsolutePath(), MediaStore.Video.Thumbnails.MINI_KIND);
return null
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4 Answers
7
Try this, May be you media file path was wrong. Use below method you will get exact path. Its working for me
Bitmap thumb = ThumbnailUtils.createVideoThumbnail(getPath(outputFileUri),
MediaStore.Images.Thumbnails.MINI_KIND);
photo_Img.setImageBitmap(thumb);
/**
* Get file path
*/
public static String getPath(Uri uri) {
String[] projection = { MediaStore.Images.Media.DATA };
Cursor cursor = context.managedQuery(uri, projection, null, null, null);
int column_index = cursor
.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
return cursor.getString(column_index);
}

Murali Ganesan
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3I tried your method. Then I got a problem.`Cursor cursor = context.getContentResolver().query(Uri.fromFile(mediaFile), proj, null, null, null);` `cursor` return `null` – roger Dec 08 '14 at 06:21
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I think you must set requires permission in AndroidManifest <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />

msj
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File file = new File(filepath);
Bitmap bitmap = ThumbnailUtils.createVideoThumbnail(file.getAbsolutePath(), MediaStore.Video.Thumbnails.FULL_SCREEN_KIND);

Vinil Chandran
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From android docs:
public static Bitmap createVideoThumbnail (String filePath, int kind)
Create a video thumbnail for a video. May return null if the video is corrupt or the format is not supported.
Hence, I guess you need to re-check the mp4 file.

Rajesh Jadav
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gaurav jain
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If the video is not corrupt, then I see only one reason for this behavior. Check the file path and ensure it's correct. It returns null bitmap in case path is wrong. – gaurav jain Dec 08 '14 at 10:00
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1As you can see, I get the path with `mediaFile.getAbsolutePath()`, am I wrong? – roger Dec 08 '14 at 10:07
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I really did use another video, and it worked. But the rest (I tried 5 different videos) didn't work. – bighugedev Aug 23 '23 at 23:41