How to stream in 4K

The Wowza Streaming Cloud™ service supports ultra high definition (UHD) streaming. UHD refers to any stream, video, or display that's capable of a horizontal resolution of approximately 4,000 pixels. As a result, UHD is often called 4K resolution. Because it contains about four times the pixels, 4K resolution offers a much sharper, clearer picture than 1080p.

To stream in 4K with Wowza Streaming Cloud, you need a camera or encoder that's capable of producing source video that's 3180 x 2160 pixels, the 4K UHD standard for television and video games. Then in Wowza Streaming Cloud, create a live stream at 3840x2160 resolution.

Contents


Add the live stream
Test your setup

Add the live stream


Start by adding a live stream that receives a 4K stream from an encoder or camera.

  1. In Wowza Streaming Cloud, click the Live Streams menu and then click Add Live Stream.
     
  2. On the Live Stream Setup page, enter a Live Stream Name.
     
  3. Choose a Broadcast Location that supports 4K streaming and is as close as possible to where your stream will originate.

4K streaming isn't available in locations that support 24x7 billing or passthrough streaming.

  1. On the Video Source and Transcoder Settings page, select the encoder or camera you want to use to connect to Wowza Streaming Cloud.
     
  2. For Aspect Ratio, choose 3840 x 2160.

  1. Specify other video source settings, click Next, and complete the steps to finish creating the live stream.
Note: For more information about live stream settings, see the Help panel on the right side of each page.
Wowza Streaming Cloud creates the live stream and displays the Overview tab of the live stream detail page.

Test your setup


When your live stream is complete, configure your source encoder or camera and test the entire setup.

Note: For information about how to encode your source video for 4K, see How to encode source video for Wowza Streaming Cloud.
  1. Select your live stream.
     
  2. Click Start Live Stream at the top of the live stream detail page.
     
  3. Click Start to confirm that you want to start the stream.

Wowza Streaming Cloud opens the stream and connects with the source.

  1. Start your video source.
     
  2. In Wowza Streaming Cloud, confirm that the stream is working by looking at the Video Snapshot on the Overview tab of the live stream detail page.

The Video Snapshot displays a frame from the live stream every five seconds. The started date and time appear under the snapshot. Source stream, transcoder, and delivery metrics begin to update.

In addition to the usual metrics, the Video Snapshot for 4K streams shows GPU encoding and decoding stats.

  1. Check playback on various devices, browsers, and platforms to confirm the 4K stream is playing as expected.
     
  2. Click Stop Live Stream at the top of the live stream detail page to end your test stream, and then stop the video source.

Originally Published: 06-14-2016.

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