yuvinactive - Set a part of the video to a defined state
yuvinactive [options] </dev/stdin >/dev/stdout
yuvinactive operates with a area (rectangle) you define. By default is sets it to really black. But you can tell tell yuvinactive to darken the area, or fill it with a certain color. It can also make the content of the area unreadable, like extreme softening of the area. Or copy the surrounding area into the the specified area. You usually have to use the -i option which sets the area in which yuvinactive will work. If no additional option is given yuvinactive stet the area to black. But you can use the -d -s -a -c options to tell yuvinactive that it shall do something different with that area. You can only use one additional option. yuvinactive was built to remove unwanted things like a logo, from the movie.
lav2yuv accepts the following options: -h Some help output -iXxY+XOFF+YOFF Specifies the area yuvinactive shall work with. With this option the area is set to black. There are no restrictions because of interlacing. -d num How much darker the area should be compared to the original color. This is done by setting a lower value for the luma. The value is in percent from the original luma. -s num Here you specify a certain color in the yuv format. -a num With this option the program uses on pixel and averages the surrounding pixels with the same color to make the original less readable. The number tells the the program how much pixels around the original pixel should be overwritten with the same color. You have to use a even number here -c num Sets the number of surrounding pixels yuvinactive should use to copy them into the given area. You have to use a even number here. yuvinactive uses the lines above and below the specified area for copying them into the area.
Right, there are bugs hidden. The thing is not well tested, and not every option might work. yuvinactive is in the first state of becoming a useful program.
This man page was originally written by Bernhard Praschinger. If you have questions, remarks, problems or you just want to contact the developers, the main mailing list for the MJPEG-tools is: firstname.lastname@example.org For more info, see our website at http://mjpeg.sourceforge.net
mjpegtools(1), lav2yuv(1), mpeg2enc(1), yuvscaler(1), yuv2lav(1), yuvdenoise(1), yuvplay(1), yuvmedianfilter(1)
Personal Opportunity - Free software gives you access to billions of dollars of software at no cost. Use this software for your business, personal use or to develop a profitable skill. Access to source code provides access to a level of capabilities/information that companies protect though copyrights. Open source is a core component of the Internet and it is available to you. Leverage the billions of dollars in resources and capabilities to build a career, establish a business or change the world. The potential is endless for those who understand the opportunity.
Business Opportunity - Goldman Sachs, IBM and countless large corporations are leveraging open source to reduce costs, develop products and increase their bottom lines. Learn what these companies know about open source and how open source can give you the advantage.
Free Software provides computer programs and capabilities at no cost but more importantly, it provides the freedom to run, edit, contribute to, and share the software. The importance of free software is a matter of access, not price. Software at no cost is a benefit but ownership rights to the software and source code is far more significant.
Free Office Software - The Libre Office suite provides top desktop productivity tools for free. This includes, a word processor, spreadsheet, presentation engine, drawing and flowcharting, database and math applications. Libre Office is available for Linux or Windows.
The Free Books Library is a collection of thousands of the most popular public domain books in an online readable format. The collection includes great classical literature and more recent works where the U.S. copyright has expired. These books are yours to read and use without restrictions.
Source Code - Want to change a program or know how it works? Open Source provides the source code for its programs so that anyone can use, modify or learn how to write those programs themselves. Visit the GNU source code repositories to download the source.
Study at Harvard, Stanford or MIT - Open edX provides free online courses from Harvard, MIT, Columbia, UC Berkeley and other top Universities. Hundreds of courses for almost all major subjects and course levels. Open edx also offers some paid courses and selected certifications.
Linux Manual Pages - A man or manual page is a form of software documentation found on Linux/Unix operating systems. Topics covered include computer programs (including library and system calls), formal standards and conventions, and even abstract concepts.