phantom 3 A question is very importent to me about mobile-sdk-ios

[dji-dev]

Hi @qw9685, the DJI Phantom 3 Advanced doesn't support playback mode(DJIPlaybackManager), you can use DJIMediaManager to download the photos and videos from the SD card instead. Hope this help, thanks!

[qw9685]

I use the way you say: in the method of retrieving the video, setMediaList settings are

for (DJIMedia* media in self.mediaList) {
if (media.mediaType == DJIMediaTypeMP4||media.mediaType == DJIMediaTypeMOV||media.mediaType == DJIMediaTypeM4V) { // 获取MP4文件
self.imageMedia = media;
break;
}
}

and then

• (IBAction)onShowFullImageButtonClicked:(id)sender {
  [self.showFullImageButton setEnabled:NO];

  WeakRef(target);
  __block NSMutableData* downloadData = [[NSMutableData alloc] init];

  [self.imageMedia fetchMediaDataWithCompletion:^(NSData *data, BOOL *stop, NSError *error) {
  WeakReturn(target);
  if (error) {
  ShowResult(@"ERROR: fetchMediaDataWithCompletion:. %@", error.description);
  [self.showFullImageButton setEnabled:YES];
  }
  else {
  [downloadData appendData:data];
  if (downloadData.length == target.imageMedia.fileSizeInBytes) {
  dispatch_async(dispatch_get_main_queue(), ^{
  WeakReturn(target);
  // [target showPhotoWithData:downloadData];
  ShowResult(@"正在写入文件");
  [downloadData writeToFile:[NSHomeDirectory() stringByAppendingPathComponent:@"Documents/audio.mp4"] atomically:YES];
  [self.showFullImageButton setEnabled:YES];

          });
      }
  }
  [self.showFullImageButton setEnabled:YES];
  

  }];
  }

[qw9685]

Is this method right? Why is it very slow..

[dji-dev]

Hi @qw9685, yes, it would become slow when you download video files (Especially big size) from the drone.