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Video4Linux (V4L for short) is a collection of device drivers and an API for supporting realtime video capture on Linux systems. [1] It supports USB webcams , TV tuners , CSI cameras, and related devices, standardizing their output, so programmers can easily add video support to their applications.
Knoppix booting on the framebuffer. The Linux framebuffer (fbdev) is a linux subsystem used to show graphics on a computer monitor, typically on the system console. [1]It was designed as a hardware-independent API to give user space software access to the framebuffer (the part of a computer's video memory containing a current video frame) using only the Linux kernel's own basic facilities and ...
The Direct Rendering Manager (DRM) is a subsystem of the Linux kernel responsible for interfacing with GPUs of modern video cards.DRM exposes an API that user-space programs can use to send commands and data to the GPU and perform operations such as configuring the mode setting of the display.
APIs for video player software to access SIP cores that do calculations regarding the de- or encoding of a video stream that are available (as library) on Linux kernel-based operating systems regardless of software license. Linux portal
Redshift has been positively reviewed by Linux users, [7] [8] [9] who note that Redshift has some installation and user interface advantages compared to the f.lux Linux port xflux. However, f.lux's systems have since been updated to enhance its dimmed display. [7] Ubuntu MATE provides Redshift installed by default since their 17.10 release. [10]
The Linux console (and Linux virtual consoles) are implemented by the VT (virtual terminal) subsystem of the Linux kernel, and do not rely on any user space software. [3] This is in contrast to a terminal emulator , which is a user space process that emulates a terminal, and is typically used in a graphical display environment.
RPM was originally written in 1997 by Erik Troan and Marc Ewing, [1] based on pms, rpp, and pm experiences.. pm was written by Rik Faith and Doug Hoffman in May 1995 for Red Hat Software, its design and implementations were influenced greatly by pms, a package management system by Faith and Kevin Martin in the fall of 1993 for the Bogus Linux Distribution.
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