'Header damaged' message when playing recorded mp4 file

[ralf.butler]

I record from /dev/video0 to an mp4 video file:

Code: Select all

cvlc --color --run-time=60 v4l2:///dev/video0 :v4l2-adev= :v4l2-standard=0 :sout='#transcode{vcodec=mp4v,vb=800,scale=1,acodec=none}:std{access=file,mux=mp4,dst=test_mp4v.mp4}'

When playing the recorded file via vlc I can see the video nicely. However, while playing the recorded file, a huge number of 'Header damaged'-strings are printed via the console.

Can someone explain why that is? Do I miss a parameter while recording?

Thank you,
Ralf