syncing multiple gopro videos

Any discussion on using LapTimer. Please use this forum in case you need guidance on how to use LapTimer or perform a certain operation
Post Reply
arsprod
20 or more Posts ★★★
20 or more Posts ★★★
Posts: 67
Joined: Sat Apr 05, 2014 11:06 pm

syncing multiple gopro videos

Post by arsprod »

Since gopro breaks races into multiple videos (usually 2) is it better to combine these first before overlaying or overlay them separately and then combining? I'm seeing issues with both - when I combine into one video the timing seems to drift; when doing separately it's a pain to relink the separate videos. Thanks!

Aaron
User avatar
Harry
Site Admin
Site Admin
Posts: 10518
Joined: Sun Sep 12, 2010 10:32 am
Location: Siegum, Germany
Contact:

Re: syncing multiple gopro videos

Post by Harry »

Hi,

Usually concatenating the segments front up is the way to go. GoPros cut longer videos into 4GB segments. There should be no frame be lost, so you should not see a drift from video 1 to video 2. In case it is a general drift, please adjust the sync point.

- Harry
Image Image Image Image
arsprod
20 or more Posts ★★★
20 or more Posts ★★★
Posts: 67
Joined: Sat Apr 05, 2014 11:06 pm

Re: syncing multiple gopro videos

Post by arsprod »

Any issues with changing resolution when combining video pieces?
User avatar
Harry
Site Admin
Site Admin
Posts: 10518
Joined: Sun Sep 12, 2010 10:32 am
Location: Siegum, Germany
Contact:

Re: syncing multiple gopro videos

Post by Harry »

No, as long as combined timestamps are preserved and you are using a supported format, you can down sample / reduce resolution or even change frame rate using some video editor.

- Harry
Image Image Image Image
lzzl551
20 or more Posts ★★★
20 or more Posts ★★★
Posts: 23
Joined: Mon May 01, 2017 7:13 am
Location: HFEI CHINA

Re: syncing multiple gopro videos

Post by lzzl551 »

Harry wrote:Hi,not 4G,is 12min segment,Video recording to 12 minutes will automatically generate new files, and so on,Video is segmented and file size does not matter

Usually concatenating the segments front up is the way to go. GoPros cut longer videos into 4GB segments. There should be no frame be lost, so you should not see a drift from video 1 to video 2. In case it is a general drift, please adjust the sync point.

- Harry
Cadillac 2016 ATSL 8AT in China 279hp/400nm
Go-Karting Praga Rotax Max Senior 28hp
Laptimer Grand Prix EDITION
iPhone6 64G IOS latest version and Samsung S7 Android7.0
TONWON BTLE OBD2
Gopro Hero4 session
Post Reply