# Png files to mp4
**URL:** https://discourse.julialang.org/t/png-files-to-mp4/23978
**Category:** General Usage
**Tags:** question
**Created:** [May 7, 2019, 8:11pm UTC](https://discourse.julialang.org/t/png-files-to-mp4/23978 "2019-05-07T20:11:05Z")
**Posts on this page:** 8
**Page:** 1
### Author:  [@Aquaman](https://discourse.julialang.org/u/Aquaman)
#### Post date: [May 7, 2019, 8:11pm UTC](https://discourse.julialang.org/t/png-files-to-mp4/23978/1 "2019-05-07T20:11:05Z")
Dear All,
how can I converts **pngs files** (fig1.png, fig2.png, … , fig10.png) to mp4. video using _ **a very easy method** _ in Julia?
Best regards
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### Author:  [@Tamas\_Papp](https://discourse.julialang.org/u/Tamas_Papp)
#### Post date: [May 8, 2019, 5:25am UTC](https://discourse.julialang.org/t/png-files-to-mp4/23978/2 "2019-05-08T05:25:33Z")
I am not sure why you think Julia is the right tool for this task. Just use an external program. You can of course call it from Julia.
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### Author:  [@Aquaman](https://discourse.julialang.org/u/Aquaman)
#### Post date: [May 8, 2019, 6:30am UTC](https://discourse.julialang.org/t/png-files-to-mp4/23978/3 "2019-05-08T06:30:49Z")
Sure, I want to find a similar package in Julia, e.g. (Matlab)
```julia
writerObj = VideoWriter('test.avi');
open(writerObj);
for K = 1 : 10000
filename1 = sprintf('%d.png', K);
thisimage1 = imread(filename1);
writeVideo(writerObj, thisimage1);
end
close(writerObj);
```
---
### Author:  [@stillyslalom](https://discourse.julialang.org/u/stillyslalom)
#### Post date: [May 8, 2019, 6:42am UTC](https://discourse.julialang.org/t/png-files-to-mp4/23978/4 "2019-05-08T06:42:34Z")
I assume you’re trying to animate a sequence of plots as described in your [earlier post](https://discourse.julialang.org/t/visualisation-in-julia/23962/12)? Plots.jl has a built-in animation utility: [Animations · Plots](http://docs.juliaplots.org/latest/animations/)
(note that you can save a .mp4 by calling `mp4(anim, “path/to/savedir/animation.mp4”, fps=30)` )
---
### Author:  [@Aquaman](https://discourse.julialang.org/u/Aquaman)
#### Post date: [May 8, 2019, 6:45am UTC](https://discourse.julialang.org/t/png-files-to-mp4/23978/5 "2019-05-08T06:45:47Z")
HI @stillyslalom
thanks a lot for your support!
how about **[VideoIO.jl](https://github.com/JuliaIO/VideoIO.jl)**?
best
---
### Author:  [@stillyslalom](https://discourse.julialang.org/u/stillyslalom)
#### Post date: [May 8, 2019, 6:53am UTC](https://discourse.julialang.org/t/png-files-to-mp4/23978/6 "2019-05-08T06:53:54Z")
Unfortunately, VideoIO.jl is only capable of video input, not output (at least as of the last time I checked). See: [https://github.com/JuliaIO/VideoIO.jl/issues/36](https://github.com/JuliaIO/VideoIO.jl/issues/36)
The most versatile option is, as Tamas mentioned, calling an external program, which is the approach taken by [https://github.com/yakir12/FFmpegPipe.jl](https://github.com/yakir12/FFmpegPipe.jl). If you need more control, you can build your own ffmpeg command pipe as I did [here](https://discourse.julialang.org/t/creating-a-video-from-a-stack-of-images/646/8).
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### Author:  [@gdkrmr](https://discourse.julialang.org/u/gdkrmr)
#### Post date: [May 8, 2019, 7:01am UTC](https://discourse.julialang.org/t/png-files-to-mp4/23978/7 "2019-05-08T07:01:13Z")
Use ffmpeg and call it from Julia if you want to.
[https://stackoverflow.com/questions/24961127/how-to-create-a-video-from-images-with-ffmpeg](https://stackoverflow.com/questions/24961127/how-to-create-a-video-from-images-with-ffmpeg)
---
### Author:  [@Aquaman](https://discourse.julialang.org/u/Aquaman)
#### Post date: [May 8, 2019, 7:03am UTC](https://discourse.julialang.org/t/png-files-to-mp4/23978/8 "2019-05-08T07:03:33Z")
sure , I can also make a video file in terminal using ffmpeg command