| glslViewer.exe .\square_2_alter.frag -w 1920 -h 1920 --nocursor --headless -E sequence,0,11,60 | |
| ffmpeg -framerate 60 -start_number 1 -i %05d.png -c:v libx264 -preset placebo -crf 16 -pix_fmt yuv420p _output.mp4 |
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FFmpeg is one of the most powerful tools for video transcoding and manipulation, but it's fairly complex and confusing to use. That's why I decided to create this cheat sheet which shows some of the most often used commands.
Let's start with some basics:
ffmpeg calls the FFmpeg application in the command line window, could also be the full path to the FFmpeg binary or .exe file
| FFMPEG '-i', file, '-c:v', 'libopenjpeg', "jpeg2000\\" + name + ".jp2"\ | |
| Convert image to jpeg2000 | |
| ffmpeg -i in.png -c:v libopenjpeg out.jp2 | |
| Hex Edit out.jp2 | |
| ffmpeg -i in.jp2 -c:v png out.png | |
| General Edit | |
| ffmpeg -i input.avi -c:v mpeg2video -g 999 -q:v 1 output.avi | |
| *edit in avidemux/whatever* |
| from bs4 import BeautifulSoup | |
| import requests | |
| import re | |
| import urllib2 | |
| import os | |
| import argparse | |
| import sys | |
| import json | |
| # adapted from http://stackoverflow.com/questions/20716842/python-download-images-from-google-image-search |