Category Archives: Programming

(FFmpeg) How to Use Green Screen to Mask a Video Into Another Video?

Posted on April 23, 2020 by jdriselvato

The use of a green screen is the most common way to add a subject to a scene in video production. By setting the scene at the purest green (not commonly found in nature) objects can interact on the green … Continue reading →

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“FFmpeg For Beginners” is now on Amazon! (Paperback & Ebook)

Posted on April 22, 2020 by jdriselvato

Today I am extremely excited to announce that “FFmpeg For Beginners” is now on Amazon. Cover over 112 different concepts, this is the ultimate FFmpeg programmers guide for users at any level. Readers at the novice level can gracefully learn … Continue reading →

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(FFmpeg) How to Add Color Normalization to a Video?

Posted on April 22, 2020 by jdriselvato

Normalization is a color correction filter that standardizes the RGB values in each frame of a video. With the use of histogram and contrast stretching, FFmpeg can quickly fix issues like rapid brightness changes and flickering. Below is an example … Continue reading →

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(FFmpeg) How to Blend Two Videos Together?

Posted on April 22, 2020 by jdriselvato

Blending has an interesting effect when two inputs are used. The blend filter has the potential to create outstanding artistic results, so let’s try it out.  Tip: In order to blend two files, they must contain the same resolution. blending … Continue reading →

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(FFmpeg) How to Concatenate Multiple Videos?

Posted on April 20, 2020 by jdriselvato

Using concat with a txt file has one catch, all the MP4s must have the exact codec, framerate, resolution, etc. An example text file is shown below (file.txt):  Then run the following command to load the txt file to create … Continue reading →

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(FFmpeg) How to Loop a Section of Video Multiple Times?

Posted on April 20, 2020 by jdriselvato

Looping a section of a video can be useful for presentations or advanced video editing. In this example the input.mp4 is a 5 minute long video with the requirement that after the 1 minute mark, the video will loop 10 … Continue reading →

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(FFmpeg) How to add a motion blur to a video?

Posted on April 18, 2020 by jdriselvato

I saw this question on Reddit and started messing with the effects recommended and totally liked the effect seen in the video below: Here’s the full script using the tmix filter: What you’ll notice here is the more frames you … Continue reading →

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(FFmpeg) How to Stitch Segments to One Video?

Posted on April 18, 2020 by jdriselvato

Stitching videos generated by the segment filter is accomplished using the concat filter. See Question, “How to Splice a Video into Segments?”, for more details on segmenting video output. Imagine you’ve generated a bunch of segments for a stream and … Continue reading →

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(FFmpeg) How to Splice a Video into Segments?

Posted on April 18, 2020 by jdriselvato

Splicing a video (or dividing a video into multiple segments) is a common way to break large files into smaller parts. This is commonly found in streaming but can also be used to break up a video into smaller clips.  … Continue reading →

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(FFmpeg) How to Trim ‘x’ Seconds From the Start and End of a Video?

Posted on April 17, 2020 by jdriselvato

The last two questions covered trimming the start of a video and trimming the end of a video, but what does the command look like combined?  In this example, the input file is 5 minutes long with the requirement of … Continue reading →

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