I have uploaded my magazine spread to online magazine tools, Issuu and Joomag.
Within Joomag, there is the functionality to add interactive content within a PDF export from InDesign.
Using the media option whilst editing the page, a selection of design tools appear so that you can directly add video, embed videos on Youtube and Vimeo, use Flash applications, add Soundcloud content, add music files, and pictures.
The example below, shows a YouTube video embedded into the Joomag application, which the user would click on to watch the content.
By considering all of these options, I would have to amend my InDesign PDF export, to leave blank spaces where I would want to add video or photos, but as I have kept all drafts from the process, this would be something very straightforward to achieve in the next stage of the development of the Video/Magazine spread.