FFMPEG & Filter Complex: A Visual Guide to the Filtergraph Usage

Today we are dealing with the filter_complex flag, allowing you to deal with multiple inputs and produce multiple outputs. This allows you to do more complex but more flexible and elaborated procedures to your video production, just in case you need to automate your video production.

For any questions or doubts, feel free to write a comment down below!
Video samples:

Further reference:

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📖 CHAPTERS 📖
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00:00 Intro
01:03 filter complex example with crossfade and set time base
11:54 filter complex example with split, lutrgb and tiling
19:28 filtergraph general syntax
22:54 Conclusions

#devstefit #ffmpeg #complexfilters #filtercomplex

[Susandwyer]

Awesome. I would really love to see a video like this which deals with more than 2 videos. And where audio also a factor.

After seeing your video here, I became confident to try for myself. For which I thank you immensely. And I successfully cross fade video with audio.

But when more than 2 video required to join with fade, it became so much more complex. Too much for me to figure out.

Thank you once more for this.

[christianjacobsson]

Been struggling to understand the filter_complex with multiple inputs/outputs.

It's only after watching this video I finally understand the various dependencies and how to master them!

Thank you so much!!!

[francescmp]

You saved my life! I'm developping an app and I got an error that google didn't solve me. But watching this video I found the solution!!
Thank you very

[shabdnokhwal]

You are providing rarest knowledge available over internet 👍 really appreciate it. Voice cuts off or very low .if you want to work upon the voice recording for future videos

[lawrencedoliveiro]

8:09 That “settb” and “setpts” are two separate filters. The comma denotes concatenation in a “simple” filtergraph, which you are using as a component in the overall “complex” filtergraph.

[shwetashukla]

can you help me with one task, I have a video, now I want to add a vertical line which moves horizontally as the audio/video plays. How can I do this?

[itzDoraemon]

Could you explain how to use "st" and "ld" ffmpeg-utils (Expression Evaluation)
, st(id, value) store value
, ld(id) load value
, i cannot find any example how to use it.

[mayurss]

hi plz help

ffmpeg -r 1 -s 1920x1080 -i %d.jpg -filter_complex " -map "[f10]" -vcodec libx264 -vf -r 24 -pix_fmt yuv420p -crf 25 -y -an output.mp4

[AVFilterGraph @ 0x558d6e43da80] No such filter: ''
Error initializing complex filters.
Invalid argument

please check what is wrong with my command