We try to encode 6 video channels 720p60. It works great on 2 unit but on the 3-rd unit the video(s) looks a little bit corrupted after 20 or so minutes of encoding, moreover it looks like the time encoded within the stream goes slower:
We record a running clock, then when we playback the recorded video on the VLC application (on a PC) the slide bar shows after 40 minutes a gap of 4 minutes, while the time on the video shows the correct time (to ensure it with an external stop watch). Above is beside the corrupt frames once per a few seconds.
We run the same software (equiped with GStreamer) and the units share the same kernel version.
When we reduce the number of encoded streams to 3 (on the “corrupted” unit), the recorded movies looks OK as on the “good” units.
How should we debug this issue?