I mostly work on Windows but when it comes to ffmpeg the syntax we'll use for entering commands is the same. I have ffmpeg installed on my Mac, on Linux (I use Ubuntu) and on Windows. We're going to fly from London to New York today, and also from London to Rome. But you don't need to know anything about QGIS to complete this tutorial - I've already exported all the individual map frames for you and shared them down below. To begin with, here's a video I made using ffmpeg, from a series of map frames I exported from QGIS Atlas. I'll try to demystify the mysterious and show you how to do some interesting things without too much pain. If you're somewhere in the middle, also hi. If you're already a Jedi-level coder but maybe haven't used ffmpeg, welcome too. Part of my sneaky plan here is to lure you in with enticing visuals so that you overlook a little bit of the complexity - which is really not that complex, I promise. If you're scared of code, command line stuff and weird computer language in general then this post is for you. The next 420x360x3 bytes afer that will represent the second frame, etc.This post is about how to create video animations from a sequence of individual images, using a simple but extremely powerful command line tool called FFmpeg. If the video has a size of 420x320 pixels, then the first 420x360x3 bytes outputed byįFMPEG will give the RGB values of the pixels of the first frame, line by line, top to bottom. Now we just have to read the output of FFMPEG. It can be omitted most of the time in Python 2 but not in Python 3 where its default value is pretty small. In sp.Popen, the bufsize parameter must be bigger than the size of one frame (see below). The format image2pipe and the - at the end tell FFMPEG that it is being used with a pipe by another program. In the code above -i myHolidays.mp4 indicates the input file, while rawvideo/rgb24 asks for a raw RGB output. Import subprocess as sp command = pipe = sp.

Ffmpeg tutorial frames to video