播放RTMP，网络差时，卡时，经常收不到任何消息

[aBusyAnt]

#8

播放RTMP，网络差时，卡时，理论上应该会收到IJKMPMoviePlayerLoadStateDidChangeNotification，_player.loadState == IJKMPMovieLoadStateStalled 才对，

但经常却收到任何消息，包括IJKMPMoviePlayerPlaybackStateDidChangeNotification、IJKMPMoviePlayerLoadStateDidChangeNotification、IJKMPMoviePlayerPlaybackDidFinishNotification都没有，就会出现画面卡在那里，但是却没有processing 图标，some suggestion? thx. @bbcallen

`- (void)loadStateDidChange:(NSNotification*)notification {
IJKMPMovieLoadState loadState = _player.loadState;
......
}

[[NSNotificationCenter defaultCenter] addObserver:self
                                         selector:@selector(loadStateDidChange:)
                                             name:IJKMPMoviePlayerLoadStateDidChangeNotification
                                           object:_player];`

log:
此时收到log:
decodeFrame -12911 kVTVideoDecoderMalfunctionErr
decodeFrame -12911 kVTVideoDecoderMalfunctionErr
decodeFrame -12911 kVTVideoDecoderMalfunctionErr
decodeFrame -12911 kVTVideoDecoderMalfunctionErr
decodeFrame -12911 kVTVideoDecoderMalfunctionErr

SDL_VoutVideoToolBox_CreateOverlay(w=640, h=480, fmt=_VTB, dp=0x191e5510)
2016-06-14 18:42:10.982 SioEyeAPP[1387:512844] FFP_MSG_VIDEO_SIZE_CHANGED: 640, 480
decodeFrame -12911 kVTVideoDecoderMalfunctionErr
decodeFrame -12911 kVTVideoDecoderMalfunctionErr
decodeFrame -12911 kVTVideoDecoderMalfunctionErr
decodeFrame -12911 kVTVideoDecoderMalfunctionErr
decodeFrame -12911 kVTVideoDecoderMalfunctionErr
decodeFrame -12911 kVTVideoDecoderMalfunctionErr
decodeFrame -12911 kVTVideoDecoderMalfunctionErr
SDL_VoutVideoToolBox_CreateOverlay(w=640, h=480, fmt=_VTB, dp=0x191e5510)
2016-06-14 18:42:37.779 SioEyeAPP[1387:512844] FFP_MSG_VIDEO_SIZE_CHANGED: 640, 480
decodeFrame -12911 kVTVideoDecoderMalfunctionErr
decodeFrame -12911 kVTVideoDecoderMalfunctionErr
decodeFrame -12911 kVTVideoDecoderMalfunctionErr
decodeFrame -12911 kVTVideoDecoderMalfunctionErr
decodeFrame -12911 kVTVideoDecoderMalfunctionErr

[bbcallen]

It means you've got an error while decoding.