All Questions
4 questions
0
votes
1
answer
25
views
How to overlay only part of a video using ffmpeg or a similar tool (not the full frame)
I have two videos (let's say 1.mp4 and 2.mp4). I would like to overlay only the top-right quarter of 2.mp4 onto 1.mp4.
The output would be a single video with the content from 1.mp4 in the top left, ...
- 1
0
votes
1
answer
26
views
Does any software have the capability to create a mask/alpha value based on the volume of an audio channel
I'm looking for an automagical way to create a Google Hangouts effect, ie.
1. I have a number of files that are recordings of individual conversation members.
2. I want to put together the video ...
- 103
0
votes
1
answer
1k
views
ffmpeg fade to specific color values over time
I have a background image that I'm trying to fade to specific color values using this filter: lutrgb=enable='gte(t,3)':'r=0.3*val:g=0.3*val:b=0.3*val'
This almost works, but it changes the values ...
- 81
0
votes
1
answer
492
views
Using brush tool for alpha channels/rotoscoping in after-effects
I'm trying to rotobrush/rotoscope a bunch of footage, see image below for what I mean.
Currently I'm using the rotobrush, but it is too time-consuming and slow - it keeps trying to guess the paths, ...
- 103