If you are sending output to an HTTP server or to AWS Elemental MediaStore, you can produce ultra-low latency outputs if you create a DASH output and enable chunked encoding and chunked transfer.
With chunked encoding and transfer Elemental Live delivers more quickly, without any decrease in quality. When you enable chunked encoding and transfer, Elemental Live divides the video into fragments, with several fragments in each segment. Elemental Live delivers the fragments before the entire segment is complete. Delivery of smaller chunks more frequently can speed up handling by the downstream system, assuming that the downstream system can handle the frequency.
From the Elemental Live side, this feature works with any downstream system that can accept DASH. But you should always discuss your requirements with the downstream system administrator, to make sure that they are prepared to accept the output.
Setup
Note
The information in this section assumes that you are familiar with the general steps for creating an event.
To produce an ultra-low latency DASH output, create a DASH output group in the usual way, with these additions:
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Enable Chunked Encoding.
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Change Fragment Length and Segment Length if necessary. For information about these fields, choose the ? icon that appears when you hover over the field name.
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In HTTP Push Dialect, choose the appropriate option. The Chunked Transfer field appears.
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Enable Chunked Transfer.
