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OBS Studio is a free and open-source app for screencasting and live streaming.Written in C/C++ and built with Qt, OBS Studio provides real-time capture, scene composition, recording, encoding, and broadcasting via Real-Time Messaging Protocol (RTMP), HLS, SRT, RIST or WebRTC.
HTTP Live Streaming uses a conventional web server, that implements support for HTTP Live Streaming (HLS), to distribute audiovisual content and requires specific software, such as OBS to fit the content into a proper format for transmission in real time over a network. The service architecture comprises:
Microsoft Expression Encoder [6] (formerly Expression Media Encoder) is a discontinued [7] transcoding and non-linear video editing software application for Microsoft Windows. It can create video streams for distribution via Microsoft Silverlight. This utility is created to record the screen for various purposes such asYouTube, Twitch etc.
Twitch is an American video live-streaming service popular in video games, ... The free and open-source OBS Studio app for Windows, macOS and Linux;
MainConcept H.264/AVC SDK offers encoding and decoding in all profiles and levels supported by the standard. MainConcept also offers a stand-alone encoding app. [3] Microsoft Windows 7, with the Home Premium and higher editions Includes a Media Foundation-based H.264 encoder with Baseline profile level 3 and Main profile support . [4]
Some of the message types shown above, such as Ping and Set Client/Server Bandwidth, are considered low level RTMP protocol messages which do not use the AMF encoding format. Command messages on the other hand, whether AMF0 (Message Type of 0x14) or AMF3 (0x11), use the format and have the general form shown below:
A network packet is the basic unit of data in a transport stream, and a transport stream is merely a sequence of packets. Each packet starts with a sync byte and a header, that may be followed with optional additional headers; the rest of the packet consists of payload.
Context-adaptive binary arithmetic coding (CABAC) is a form of entropy encoding used in the H.264/MPEG-4 AVC [1] [2] and High Efficiency Video Coding (HEVC) standards. It is a lossless compression technique, although the video coding standards in which it is used are typically for lossy compression applications.