What is the first step in using Video Analyzer for Media to analyze a video?

The first step in using Video Analyzer for Media to analyze a video is to upload the video to Video Analyzer for Media and index it. This initial step is crucial because the Video Analyzer requires the video content to be processed and indexed to enable further analysis, such as generating metadata, extracting insights, and indexing frames or segments.

Once the video is uploaded and indexed, the service can perform more advanced analyses, such as detecting objects, actions, or scenes. Indexing is an important part of understanding the video content, which allows the system to provide useful information about what's happening in the video.

The other options represent subsequent actions or additional features that may come into play after the video is uploaded and indexed. For instance, extracting key frames or embedding widgets in a web application takes place after the initial upload and indexing process has been completed. Storing the video in an Azure blob store container is often a prerequisite for uploading but not a direct function of the Video Analyzer itself as it does not involve the core analysis functionalities provided by the service.