At a trackday I recorded four sessions each of about 40 minutes with RC for IOS, video source was a GoPro 4.
After downloading the videos I edited the sync of three sessions, which were off about 200ms. Now I can't export the three edited sessions (MP4+overlay). I always get a “Failed: Video/audio codec” error. Viewing the videos + overlay in RC works.
The fourth session, for which I didn't touch the synchronization, exported without problems. Synchronization is off by 200ms as expeced.
How can I get my videos + manually synchronized overlay exported. I didn't find a solution in the forum or in the FAQ.
Or is it at least possible to restore the original sync values in RC?
Hardware:
iPhone SE 2020, 256GB, IOS 3.7
Video Source:
GoPro 4, Channel 2, 1920x1080, 60 Hz
Comments
I'm investigating the issue in coming days, hopefully I can fix it.
Maybe it helps to find the bug, I could export all of my laps by selecting "laps" instead of the entire session. But I had to split two sessions for exporting - e.g. export-1 lap 1-6 and export-2 lap 7-12. These sessions used 5 and 6 videos. At two sessions I could export all laps without splitting, they only used 4 videos.
All RC seesions were started in the paddock, which is a bit off track. The track was Hockenheim GP. I used my iPhone for GPS, as expected the accuracy and speed was not the best. Despite the overall result was ok, the next buy will be an external GPS...
Your bug must be something else. If you want, you could share me the session (as .rcz file) and _all_ of the raw video files that are linked. Obviously you'd need to upload them to cloud, and share the links to me. If you want me to look at it, please send the links to the file to tracks(at)racechrono.com