getFileThumbnail Overwrites Thumbnails with Same Filename When Extracting Multiple Frames

[stephane-archer]

  Future<List<File>> getTwoFrame(String videoPath) async {
    final MediaInfo info = await VideoCompress.getMediaInfo(videoPath);
    var duration = info.duration;
    if (duration == null) {
      throw StateError("no duration detected");
    }

    var f1 = await VideoCompress.getFileThumbnail(videoPath, position: -1);
    var f2 = await VideoCompress.getFileThumbnail(videoPath,
        position: (duration / 2).toInt());
    assert(f1.path != f2.path);
    return [f1, f2];
  }

the assert here will always be false. you can't extract multiple thumbnails from a video using getFileThumbnail because they will overwrite themselves.
getFileThumbnail should generate files with a unique file name to avoid this issue