An operator at the upstream server must set up the source content on the upstream system. Make sure that the operator sets up as follows:
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They set up to deliver the correct number of sources:
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If the MediaLive channel is a standard channel, the operator must set up two file sources. They must make sure that the two files are identical in terms of video resolution and bitrate.
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If the MediaLive channel is a single-pipeline channel, the operator must set up one file source.
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They set up to make the content available at the agreed URLs. These URLs are the URLs that you obtained earlier in this section, and that you configured into the MP4 input. They correspond to the URLs shown in the diagram after this procedure.
