Hi there,

I have a project consisting of several clips sized 3840X2160 at 25fps.
I found a topic about creating profiles and rendering setting for 4k clips at 30 and 60 fps you can also use for Youtube.
How can I convert them to use with 4k 25fps?

Follow the steps as written here: viewtopic.php?f=272&t=124869&p=355914

When creating the profile files set the framerate to 25 - I do not know if the framerate and the g parameter below must be 30 and 15 for youtube only. Please try and let us know.

Taken from the other thread:
description=4K Youtube
f=mp4
frame_rate_num=30 <-- Pay attention here (30fps is crucial)
frame_rate_den=1
width=3840
height=2160
progressive=1

vcodec=libx264
vb=40M
g=15 <-- Pay attention here (this has to be half the frame rate)
bf=2

acodec=aac
ab=384k
pix_fmt=yuv420p

threads=4
coder=1
movflags=+faststart

meta.preset.extension=mp4
meta.preset.name=4K Youtube

capslock wrote:Follow the steps as written here: viewtopic.php?f=272&t=124869&p=355914

When creating the profile files set the framerate to 25 - I do not know if the framerate and the g parameter below must be 30 and 15 for youtube only. Please try and let us know....

That is the thread I'm referring to...
I also am wondering for the "g" parameter.

I did as discribed in step 1 but instead of a frame rate of 60/1 I used 25/1
And in step 2 I created a render profile like "4K_60fps" -not the Utube one- but instead of "frame_rate_num=60" I used "frame_rate_num=25"
I totally missed the "g" thing and left it as it was. I tested with a 2min footage in 3840X2160 25fps. No complains about the project profile.
Then I cut a piece of 4sec and rendered it as a 4K 25fps mp4 file. Seemed to work.
Strangely enough VLC seems to have a problem playing 4K files (its choppy, but the codec info of the test mp4 seem legit (resolution, fps, etc)) but the Totem player has no problem with 4K, even at the size of 4GB!

I still have my reservations though, because of the "g" thing... My project is quite large and I don't want to see hours of work going to waste.

Can any one verify or give insight to this?