vidSwap

iOS devices can play a video audibly in the background when there's another video that currently has focus. My use case is serving ads via the ad tech Vendri. I'll have my show with focus in the foreground. Then I'll pause my video in code to allow an ad to play. However, the ad plays inline, invisibly, behind the video that currently has focus.

For this test I create two videos and try different scenarios and see what breaks what. Honestly I don't know!

First test: Two video tags on same level in dom, no css. On hitting the external 'play' button in the markup, .play() method will be called on both videos simultaneously. See what happens when one video is in the markup before the other, and what happens when you change the order in the code.

Since sound encoding that works on iphone is escaping me, I'll do this without it.

Both videos will be a the same video, just one will have the audio go on and off rapidly to indicate that it is playing. Seriously, I really could not figure out how to make an mp4 play on my iPhone! Luckily I have an mp4 of Big Buck Bunny that works on all my test devices.

Seriously? Changing the video volume from javascript doesn't work on iOS by default? I really don't need this stress. OK. Must knuckle down and really learn the H.264 codec for ffmpeg and do a test vid myself.