dabluck

        BitmapPool bitmapPool = Glide.get(this).getBitmapPool();
        FileDescriptorBitmapDecoder decoder = new FileDescriptorBitmapDecoder(
                new VideoBitmapDecoder(200),
                bitmapPool,
                DecodeFormat.PREFER_ARGB_8888);
        
        Glide.with(this).load(Environment.getExternalStorageDirectory().toString() +
                "/source.mp4")
                .asBitmap()
                .videoDecoder(decoder)