Video preloading issue
Well I have a bit of a problem with video. I have a course that is essentially video based, it is really simple and quite straightforward in its structure. HTML5 output only.
It is made up of 4 scenes each with multiple slides.
Scene 1 - contains an intro vid and a menu screen.
Scene 2 - has the collection of videos, 9 in total. ALL on SEPARATE slides each set to play when clicked. So no auto-playing.
Scene 3 - same as the previous but with 5 videos.
Scene 4 - selection of mqcs.
From a functional point of view all runs fine on a per slide and per scene basis. However, when running the course as a whole there is an issue. Its tricky to explain but basically when you are on the first scene > menu slide (that contains NO VIDEO) you can click anywhere and one of the video from scene 3 starts to play but cannot be seen.
From what I can tell Storyline outputs an offscreen div structure with video tags for each video featured in the course. Each of the video src is base64 encoded with a preload attribute set to auto. I assume that this is used as some sort of preloading/management sequence.
However, one of the videos in the list is not base64 encoded, its ‘src’ is a full URL to a .mp4 and that is the video that is ‘appearing’ on this slide its not meant to. It looks like if a video is “active” then it’s a full url and not base 64 but that video does not feature on this slide at all so I’m not sure why it's being included at this point.
I’m on a very tight deadline and this has potential to cause some real headaches. I have some further “trial and error” tests to dig a bit deeper into it but I’m hoping some has a “just do this…x” answer out there.
Side note: I’ve been testing this for that last few days and have not noticed it until now – which happens to be the first time I’ve tested after updating with yesterdays Storyline update. Not saying that its related – just sayin’