Given the continued evolvement of video formats to ever high bit rate formats (SD to HD to 4K to 8K), then it’s only natural that video compression techniques continue to evolve as well. The obvious high level benefits of compression is less bitrate for transmission and less storage required to keep video files. This in turns means cost savings and efficiencies in terms of storing and delivery as well as reduced latencies in utilisation.
History of video compression
From a history prospective, “Motion JPEG” in the mid 1990’s, to “MPEG-4 part 2” (late 1990’s), and now to H.264, as of 2016, has become one of the most widely adopted compression formats in use today. H.264, also known as MPEG-4 Part 10/AVC for Advanced Video Coding, is the latest MPEG standard and utilised for the recording, compression, and distribution of video content over the internet including YouTube and iTunes Store and other browser based web software. It also widely adopted by HDTV broadcasts over terrestrial, cable and satellite broadcasters and TV production companies, and is used by h264 live streaming for video contribution applications such as live sports and news back to the studios for commentary and playout.
H.264 was ratified as a standard in 2003 and was a successor to MPEG-2 Part 2. So what is the future?
Approved in 2013, with subsequent revision in 2014, H.265, also known as HEVC that is short for High Efficiency Video Coding, is the natural successor to H.264, and is now started to become adopted as a mainstream product with vendors manufacturing h 265 hevc encoder products as oppose to h 264 video streaming products.
It is a video compression standard that ensures delivery of video quality identical, and in some cases with much more improved picture quality, as H.264 AVC, but an HEVC H.265 encoder offers double the data compression ratio, that is an improved efficiency of 50% over H.264.
Efficiency of H.265
For example when you needed 4-6MB/sec for video contribution of H.264, it is now possible using an H.265 encoder to use 2-4MB/sec but with the added benefits of even lower latency, and a video that can still be maintained even at very low bitrates of 100’s of kbps. With traditional H264 live streaming encoders, this would not be possible at such low bitrates to maintain a video feed.
HEVC also supports resolutions up to 8192×4320, including 8K UHD and is viewed as the next generation compression for larger video formats.
Contact us now for more information on how Soliton’s Smart Telecaster range of products can help for your cost effective and highly reliable video contribution requirements.
Lightweight, easy to use mobile live broadcasting products that enable broadcasters to transmit and contribute high quality streaming video via 3G, 4G and Wi-Fi networks from remote locations without the need of traditional satellite technology. Ideal for live sport events, news gathering and public safety.