AV1 Live Streaming Is Finally Coming To YouTube

An anonymous reader shares a report: In a recent video, YouTuber EposVox reports that YouTube is finally rolling out AV1 live-streaming support to the platform, with the tech currently in a beta. AV1 will provide YouTube live streams with a substantial increase in video quality, and allow users to stream at up to 4K 60FPS with Twitch-limited bitrates. EposVox was able to get early access to a development build of OBS 29.1 to check out YouTube's live streaming AV1 capabilities. The newest addition to the AV1 rollout is YouTube live streaming support with AV1. YouTube just rolled out beta support for a new video live-streaming standard known as Enhanced RTMP, which will allow streamers to utilize several of the latest video codecs, including AV1, VP9, and HEVC (H.265) to live stream videos to YouTube.

EposVox was able to test drive Enhanced RTMP, with a development build of OBS 21.9 to stream AV1 gaming content to YouTube directly. According to EposVox, the quality difference is night and day compared to H.264. The quality jump with AV1, allowed him to drive higher quality video to his live stream, and remove pixelation altogether. Just for perspective on how powerful AV1 is, EposVox was able to run an AV1 1440P 60FPS live stream of Halo Infinite at 500kbps - a bitrate 15x lower than the Twitch limit, and the stream was still perfectly watchable. For normal use cases, EposVox found that 8mbps was the sweet spot for 1440P 60FPS, and around 15mbps for 1440P 60FPS. For a perfectly good-looking live stream with none or close to no pixelization. For users that still want to stream 1080P video, all you'll need is a 4MBps bitrate to achieve the same result. This is a night and day difference to H.264 where 8Mbps was about the minimum you want for a high-quality 1080P 60FPS video stream, and even in this situation, pixelation is still very likely to occur with a lot of streams.

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