Easier/faster/lossless way to concatenate several MP4 files into one big MP4 file:

cd YOUR_GOPRO_FOLDER

MP4Box $( ls -1 G*.MP4 | awk '{print " -cat "$1}' | tr '\n' ' ' ) -new bigfile.mp4

@atom-smasher thanks

Thanks for this page and especially the Kdenlive preset. I had to go back to Cineform since there is a known sepia tint on all Hero 3+ Black Protune footages but your preset seems to be fixing that as well.
I'm able to use the -dark and -underwater presets but the -indoor and -outdoor presets seem to be broken since I end up with a plain white frame. Can you have a look at them?

@KonradIT really cool, thanks!

To skip a photo every N when creating timelapse, generate the list with

ls -1tr | sed -n '0~Np' > gopro.txt

Thanks for this great page, very useful and even better than using goPro studio.
I have some questions about timelapse encoding. I'm using a goPro Hero which takes timelapse picture sized 2592x1944. Then if I use the command line -vf scale=1920:1080, I get black strip at each side of the result video. It's quite normal because the picture has a 4:3 ratio and the output video is 16:9, but I would like to take off this black part. One solution I found with mencoder, is to crop the picture, so that I get a 16:9 size :
-vf crop=2592:1458:0:243,scale=1920:1080

Another solution is a width stretch of the input picture, but I still did not find how to do that. Is there anybody who found a good solution for this issue?

EDIT : I found out that the autoaspect option was responsible for the black strip, remove it and the pixel width is stretched. Then no need to crop but the aspect ratio is not kept.

Any recommendations for a gopro hero 4? (silver) I'm going to start messing around in KDEnlive to figure it out in the meantime

hello,

many thanks for your tutorial. I have got a sjcam 5000. The parameters are quiet good for reducing fisheye effects on picture. But, parameters are not good for the script python/kdenlive.

Do you know how to compute these parameters? or by chance... does anyone has already parameters for sjcam 5000.

Regards

here is a reference to sjcam
http://www.sjcam.com/home/32-sjcam-sj5000-wifi-action-camera.html

here are some results using the mogrify option for sjcam5000
mogrify -distort barrel "0 0 -0.3" *.JPG
https://www.dropbox.com/sh/talp7h69b5h8zwh/AAC-2LCxIYHxtxlmiNch9DqCa?dl=0

I updated the dropbox with videos generated with kdenlive.
The parameters for "Lens Correction"
Horizontal/Vertical Center=500
Center Correction:265
Edges:530
Brightness: 500

I really think that they are not optimal. If someone has better value. Feel Free to comment.

@pdizzle did you ever get the hero 4 figured out?

I've been using

And it's close but not quite there.

Thanks @btilford : How did you come up with these values ? Are you aware of better parameters ?
btw, Center correction:300 works better for me. :)

@ebadi I started with the Hero 3 stuff from above and tried to get things to look right. Wasn't able to get it 100% though.

Some other scripts based on this page: https://github.com/ponchoblesa/GoPro-Studio-for-linux

does anyone have good fisheye correction for the current "gopro hero"?

@btilford @ebadi Center Correction of 400 worked perfect for me

thanks a million for all the information. amazing work. does anybody have the parameters for gopro hero 5 black?

depending on the ffmpeg version you have to replace -sameq with -qscale 0

You may try use iDealshare VideoGo to convert GoPro CineForm video to MP4, AVI, FLV, WMV, MKV, ASF, MPG, ProRes etc

depending on the ffmpeg version you have to replace -sameq with -qscale 0

My version required -q:v 0 instead.

I also needed -strict -2 to get it to handle the audio (I think)