Note… this isn't sponsored by Teradek, but I found it on their blog and thought it was pretty significant. Especially if you're concerned about streaming.
Related: Teradek announces 4k H.265 encoders
4 Reasons Why HEVC (H.265) Matters, and How You Can Start Using It Now
The video ecosystem is evolving, and the hot topic right now is the shift from AVC to HEVC. H.265 / High Efficiency Video Compression (HEVC) is the newest video compression standard that technology has been gradually shifting towards, and while the standard isn’t exactly new by any means (it was first ratified in 2013), the past year has seen a more impactful shift towards HEVC-compatible playback and wider market adoption.
But rumor has it the video ecosystem isn’t ready for the new compression standard yet. If so, are there any real advantages to transitioning now? Yes – quite a lot actually. Shifting to HEVC technology puts you ahead of the game as the video market plays catch-up. But while the rest of the world slowly adopts new standard, many advantages can actually be had now. So what are these advantages and how can we deploy HEVC workflows today?
HEVC (H.265) vs AVC (H.264)
HEVC (H.265) is the next generation compression standard that offers a number of enhancements over AVC. HEVC compression is 50% more efficient than AVC, which translates into maintaining the same video quality at half the bitrate or double the video quality at the same bitrate. The figure above represents the resolution:bitrate ratio of different output qualities. In all categories, bandwidth costs are significantly reduced while resolutions remain identical.
Let's take a look at some reasons why shifting to HEVC now is an excellent idea.
1. Less Cost and More Overhead
Streaming live with an HEVC-enabled encoder means spending only half the bitrate compared to an AVC encoder. Say you’re doing a 1080p livestream on YouTube at 8Mbps via AVC. With an HEVC encoder, that 1080p feed will stream at just 4Mbps. Same quality, less data.
Since less data is being used in the transfer, more data is saved. This is especially important for users with data-capped devices like cellular 4G and on-demand subscription plans. Say your workflow uses a 4G LTE USB modem as a primary Internet source. With AVC, streaming at 1080p resolution will cost an impractical amount of bandwidth to create a lossless feed. With HEVC, those bitrate demands are reduced in nearly half, bringing 1080p resolution back to the table. Alternatively, you could stream at a lower quality and save the extra bandwidth cost.
Read full article at Teradek “4 Reasons Why HEVC (H.265) Matters, and How You Can Start Using It Now”
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(cover photo credit: snap from Teradek)