In particular, it obviates having to worry about format or codec details. Miracast devices negotiate settings for each connection, which simplifies the process for the users. The technology was promoted to work across devices, regardless of brand. Miracast hardware now supports HD, FHD and 4K screen streaming. Version history VersionĬorrected heading errors in sections 4.3 and 4.4. On the application layer, the stream is initiated and controlled via RTSP, RTP for the data transfer. On the transport layer, TCP or UDP are used. The connection is created via WPS and therefore is secured with WPA2. It allows sending up to 1080p HD video ( H.264 codec) and 5.1 surround sound ( AAC and AC3 are optional codecs, mandated codec is linear pulse-code modulation – 16 bits 48 kHz 2 channels). Miracast is based on the peer-to-peer Wi-Fi Direct standard. The Wi-Fi Alliance maintains a list of certified devices, which numbered over 6,700 as of 9 March 2017. In 2017, Wi-Fi Alliance stated Miracast as a use for Wi-Fi Direct. Nvidia announced support in 2012 for their Tegra 3 platform, and Freescale Semiconductor, Texas Instruments, Qualcomm, Marvell Technology Group and other chip vendors have also announced their plans to support the Miracast standard. Devices that are Miracast-certified can communicate with each other, regardless of manufacturer. The Wi-Fi Alliance launched the Miracast certification program at the end of 2012. The protocol is utilised in many devices and is used or branded under various names by different manufacturers, including Smart View and AllShare Cast (by Samsung), SmartShare (by LG), screen mirroring (by Sony), Cast (in Windows 11), wireless display and screen casting. It can roughly be described as " HDMI over Wi-Fi", replacing cables in favor of wireless. Miracast is a wireless communications standard created by the Wi-Fi Alliance which is designed to transmit video and sound directly from devices (such as laptops, tablets, or smartphones) to display receivers (such as TVs, monitors, or projectors). Peer-to-peer wireless screencasting standard
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