Thank you for your response. I looked into the StageVideo options and it turns out that videos formatted in this way cannot be embedded into swf files.
I had an idea earlier to format loads of different version of my video file and put them all on the same frame in Animate. Then when it was published as an app, I could see if any of them worked. Unfortunately not one video worked, but the soundtrack seems to playing in the background?
Also worth noting, that if I drag the video file over to my app and play it, it runs fine, but as soon as it's packaged in the apk it's gone again?
Don't suppose you have any other ideas do you?
Thanks for your time.
If you're making APK or iOS IPA, and using video, it wouldn't make sense to use embedded video, unless you are doing frame accurate overlay of animation. If you are, the you should use FLV as the video type.
If you're just playing video, then external file H.264, using StageVideo, will perform well and look good.