The latest buzz floating around the broadcast industry has been Video over IP. NAB 2016 was certainly a large stage for major manufacturers to showcase their solutions to a new evolution in the way broadcast Video will be transmitted beyond the legendary SDI. The adoption of Video over IP has certainly been a controversial one, with plenty of solutions for customers to choose from, however the vast majority that is interested is uncertain of which ones will fulfill their needs and wants as the technology matures.
This chart takes into consideration the seven planes of interoperability (media transport, timing, compression, flow control, flow switching, device control and discovery, identity) as defined by the Joint Task Force on Networked Media (EBU, VSF, SMPTE, and AMWA) in their efforts to define Minimum Viable System (MVS) requirements.
Sony IP-Live is the only complete ecosystem for end to end transmission of compressed or uncompressed Video over IP using COTS IP switches. The Sony IP-Live system consists of an ultra-high quality, Low Latency Video Codec (LLVC), individual packetization of Video, Audio, Metadata, and a robust frame-aligned Forward Error Correction (FEC) system. The LLVC codec enables 4Kp60 transmission over 10G IP networks or 4Kp60 uncompressed over 25G IP networks. Learn More - Sony IP Live
ASPEN – (Adaptive Sample Picture Encapsulation). This system was developed by Evertz, who now manages the “Aspen Alliance”. ASPEN is based on MPEG TS using SMPTE ST 302 (audio over TS), SMPTE ST 2038 (ancillary data over TS) and parts of SMPTE 2022. Submitted to SMPTE and released as SMPTE RDD 37. This system requires special Evertz switches. Learn More - ASPEN Community
Technical Recommendation for transmitting audio, video and ancillary data as separate streams. This allows video streams to be sent to video devices and audio streams to be sent to audio devices. Care needs to be taken to ensure proper synchronization, ideally through SMPTE 2059 PTP.
Technical Recommendation for encapsulating the SDI embedded stream into IP. This is the simplest approach suggested by VSF, but does not allow for separate routing of audio and video.
Developed by SMPTE, these are IP encapsulation methods for uncompressed media content.
2022-5 is a optional component which implements an XOR Forward Error Correction (FEC).
2022-6 adds specific headers to the SDI data stream to create a “2022 datagram”. This is transported over RTP/UDP/IP.
2022-7 is a “hitless” redundancy option for 2022, NMI, etc., whereby 2 streams are sent over 2 physical interfaces and the first one that arrives at the decoder is used.
Developed by IntoPix, who started the TICO Alliance. A small footprint wavelet based codec used as part of a larger IP system, or as a way to squeeze 4k into a 3G coax infrastructure. Supports up to 3:1 compression visually lossless. The codec was submitted to SMPTE and released as SMPTE RDD 35.