If you’re considering trying out autocross, I say go for it. I’m very new, and have found people at the two events I’ve attended (WOSCA #1, and PITL #3) to be friendly and extremely helpful.
Additionally, you can do it with your own car. You don’t need some sort of special race-spec track beast. Both events have also had loaner helmets available (although I spent $200 and bought my own helmet meeting the appropriate standards).
Goal I want to combine a few clips together, with a 5-seconds of intro text on each one.
Create overlay text in GIMP I created some overlay text in gimp, then exported to png files. An example (Note the transparancy, and drop shadow):
Trim clips to length Using the methods I’ve described in previous ffmpeg posts, I trimmed the clips, ensuring that there is at least five seconds of lead-in on each clip for the text.
Just like the first two times, I’m assembling my Watkins Glen 2017 track footage with ffmpeg.
However, I encountered a small issue I didn’t last year, plus I decided to change things up a bit with codecs, and audio selection.
ffmpeg requires protocol whitelist now I’m using pretty much the same concatenation command as last year (filenames are a bit different):
$ for f in Front-*MOV; do echo file "$f"; done | ffmpeg -f concat -i - -c copy Front.
I just attended the Watkins Glen opening day for the second year. It was, again, a blast.
I made some slight adjustments to my ffmpeg assembly procedure from last year.
Dashcam saves video in 5-minute chunks Instead of creating .list files, I simply used a pipe as input:
for fo in AMBA091*; do echo file "$fo"; done \ | ffmpeg -f concat -i - -c copy Front-Track1.mov Front and Rear videos need to be combined Much like last year, I made short samples to confirm if any offsets needed to be done.
I recently took my car to a racetrack, covered with cameras. I wanted to post these on youtube, but encountered a few issues:
Dashcam saves video in 5-minute chunks
Front and Rear videos need to be combined
I don’t know anything about video editing
I didn’t have a working video editor
Fedora doesn’t seem to ship ffmpeg, and rpmfusion doesn’t support Fedora 22 yet