ubuntu convert 2 files in 1??

[vl4d]

hi...i can't find a program to work in my ubuntu 16.04 to encode 2 different video file in 1 (mp4 for the final) but i need to be encoded because the video is different and is not working with fast encode i try all this and the final video is black..

(in my local pc i have idoo Video Editor Pro 3.5.0 and is working but for ubuntu i don't find nothing like this :/ )

pls help

[sneaker]

https://trac.ffmpeg.org/wiki/Concatenate

[vl4d]

https://trac.ffmpeg.org/wiki/Concatenate

i try this but is not working

ffmpeg -i /root/a.mp4 -i /root/b.mp4 \
  -filter_complex '[0:0] [0:0] [1:0] [1:0] concat=n=2:v=1:a=1 [v] [a]' \
  -map '[v]' -map '[a]' /root/output.mp4

is wrong the code??

[easyfab]

and replacing
-filter_complex '[0:0] [0:0] [1:0] [1:0] ...

with

-filter_complex '[0:v:0] [0:a:0] [1:v:0] [1:a:0] ...

[easyfab]

or create a mylist.txt

# this is a comment
file '/root/a.mp4'
file '/root/b.mp4'

ffmpeg -f concat -safe 0 -i mylist.txt output

[vl4d]

[Parsed_concat_0 @ 0xc981a0] Input link in1:v0 parameters (size 1280x720, SAR 1: 1) do not match the corresponding output link in0:v0 parameters (1920x1080, SAR 1:1)
[Parsed_concat_0 @ 0xc981a0] Failed to configure output pad on Parsed_concat_0
Error configuring complex filters.
Invalid argument

[easyfab]

Oh your videos file have not the same resolution.

and something like :

ffmpeg -i /root/a.mp4 -s 1280x720 -i /root/b.mp4 \
-filter_complex '[0:v:0] [0:a:0] [1:v:0] [1:a:0] concat=n=2:v=1:a=1 [v] [a]' \
-map '[v]' -map '[a]' /root/output.mp4

[racer-x]

Install Kdenlive. Set project properties to 1280x720. Import both clips into timeline. Export render.

[hech54]

You are trying to make an Orpple(joining and apple and an orange).....not gonna happen easily.

[vl4d]

Install Kdenlive. Set project properties to 1280x720. Import both clips into timeline. Export render.

i have this program in my server but is not open is not running

[racer-x]

You'll need to install kde-runtime if you're running a desktop other than KDE. Kdenlive is a KDE application. Or download and run the Kdenlive AppImage. That should work on all desktops. https://kdenlive.org/download/

[vl4d]

i have the kdenlive and the runtime+appimage all but is not show up i don't know why (ubuntu os but i login from windows10+ xrdp interface)