I try to play MP4 file using mod_vlc ,I am getting following error

   VLC: Failed to change zoom

   VLC: Failed to change source AR 

 But i can able to hear Audio only video i can't

Full log

2015-06-24 16:06:29.808637 [NOTICE] mod_vlc.c:700 VLC Path is http http://www.html5rocks.com/en/tutorials/video/basics/devstories.mp4

Fontconfig warning: ignoring UTF-8: not a valid region tag

2015-06-24 16:06:30.728647 [INFO] mod_vlc.c:480 chroma: I420, width: 640, height: 386, pitches: 0, lines: 0

2015-06-24 16:06:30.728647 [INFO] mod_vlc.c:514 chroma: YUYV, width: 640, height: 386, pitches: 1280, lines: 386

VLC: Failed to change zoom

VLC: Failed to set on top

VLC: Failed to change source AR

VLC: Failed to change zoom

VLC: Failed to change source AR

2015-06-24 16:07:41.358701 [INFO] mod_vlc.c:524 cleanup

2015-06-24 16:07:41.358701 [NOTICE] switch_core_state_machine.c:315 sofia/internal/1005@x.x.x.x has executed the last dialplan instruction, hanging up.

2015-06-24 16:07:41.358701 [NOTICE] switch_core_state_machine.c:317 Hangup sofia/internal/1005@x.x.x.x [CS_EXECUTE] [NORMAL_CLEARING]

2015-06-24 16:07:41.358701 [NOTICE] switch_core_session.c:1657 Session 1 (sofia/internal/1005@x.x.x.x) Ended

2015-06-24 16:07:41.358701 [NOTICE] switch_core_session.c:1661 Close Channel sofia/internal/1005@x.x.x.x[CS_DESTROY]