You can embed a video player directly into your course content by placing iframe HTML code within a course item or even an announcement.
First you must upload your video to a video hosting site like YouTube. By selecting the share option for your video, you can then copy the HTML code that needs to be placed into a content area of your course.
In the Blackboard editor, click the HTML code view button to open the HTML editor.
Paste your code into this window and click update. Your video should display when you click submit.