"Cross" shaped cubemap layout. Is it possible?

[guilovsh]

Is there a way I could output a file with the following layout? I tried a few of the options but couldnt get this specific one:
https://www.keithlantz.net/wp-content/uploads/2011/10/skybox_texture.jpg

Don't know if it matters but my input file is a 4096x2048 equirectangular video.

Thanks!

[kcircnc]

No. But you can pair Transform360 with the native ffmpeg filters (crop/split/overlay) to achieve this.

[guilovsh]

Hmmm... interesting, kcircnc.

Would I be able to run both the transform filter + these cropping,splitting and overlaying operations all at the same time or would you say I have to output the transform360 cubemap std layout and then apply the other filters?

Thanks!

[puffpio]

You should be able to do them all at the same time Check out the ffmpeg documentation on filter chains and filter graphs

…

On Mon, Feb 5, 2018 at 3:44 AM guilovsh ***@***.***> wrote: Hmmm... interesting, kcircnc. Would I be able to run both the transform filter + these cropping,splitting and overlaying operations all at the same time or would you say I have to output the transform360 cubemap std layout and then apply the other filters? Thanks! — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#55 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AALS3dfNYhu0A3VD8xTGDf-PHRvLRm6Aks5tRumhgaJpZM4R3lYg> .

[guilovsh]

Thanks guys! Managed to get what I wanted :)

[malDuffin]

For anyone wanting a solution to this, run this on the default cubemap exported from Transform360. I spent a bit of time getting this to work, I'll see about integrating later so that it's a single step.
ffmpeg -i facebook_cubemap.mp4 -filter_complex \ "[0:v]crop=iw/3:ih/2:0:0[topA]; \ [0:v]crop=iw/3:ih/2:ow:0[topB]; \ [0:v]crop=iw/3:ih/2:ow*2:0[topC_crop]; \ [topC_crop]rotate=180*PI/180[topC]; \ color=black:512x512[empty]; \ [empty] split=6[empty1][empty2][empty3][empty4][empty5][empty6]; \ [0:v]crop=iw/3:ih/2:0:oh[bottomA_crop]; \ [bottomA_crop]rotate=180*PI/180[bottomA]; \ [0:v]crop=iw/3:ih/2:ow:oh[bottomB]; \ [0:v]crop=iw/3:ih/2:ow*2:oh[bottomC]; \ [empty1][topC][empty2][empty3]hstack=inputs=4:shortest=1[top_row]; \ [topA][bottomC][topB][bottomB]hstack=inputs=4:shortest=1[middle_row]; \ [empty4][bottomA][empty5][empty6]hstack=inputs=4:shortest=1[bottom_row]; \ [top_row][middle_row][bottom_row]vstack=3[v]" \ -map "[v]" -map 0:a? cross_cubemap.mp4

Note that I just set the [empty] spaces to be 512x512, I did a quick check to see how to define the size of these based on the input width/height but couldn't see anything. I'll try to fix this as well in an update.