epiphan video Pearl Nano, Руководство пользователя

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Pearl Nano User Guide Suggested stream settings
Suggested stream settings
When you're setting up your live stream, you would typically consult your CDN or publishing destination
for their recommended settings to use.
Stream setup can be a matter of balancing quality and system resources. When choosing your stream
settings, it's important to consider the type of content you're streaming and the streaming protocol
you've chosen.
For streaming fast moving video, a higher bitrate and frame rate delivers a better image. If you're
streaming a slide presentation, you can save bandwidth and system processing by lowering the bitrate
and frame rate without any noticeable image degradation.
The following table provides suggested settings to maximize your video quality while minimizing system
resource usage when streaming video content from your Pearl Nano.
Table 44 Suggested stream settings for video
Option Setting
Codec H.264
Video encoding preset Hardware accelerated
Video encoding profile High
Key frame interval 2 sec
1
Limit frame rate 30
1
Bitrate
4000 kbps for HD
6000 kbps for Full HD
4000 kbps for HD; 6000 kbps for Full HD (Mac)
Audio format AAC 22 KHz
1
1
For HLS streaming, the key frame interval should be set to 2s and the frame rate should be set to 60 fps
(or 59.94) for live NTSC content.
The following table provides suggested settings to maximize your stream quality while minimizing system
resource usage when streaming a slide presentation from a PC, Mac, or tablet.
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