If 21.3 can be handled -> get big_264.mp4
else
if 20.9 can be handled -> get medium.mp4
else
get small.png
additionally get small2.png
or to put it another way....
What if I can't do 21.3, but can do 20.9, do I show the 21.3.
fallback or not?
You show it. that's how you have defined it.
If you can't do 21.3, you get everything within the video tag.
It is then a seperate case
<video src="medium.mp4" type="video/mp4; codecs=mp4v.20.9">
<img src="small.png" alt="alternate image for non-video
browsers" />
</video>
If you can do that you will get the video + the remainder of the
fallback from 21.3
If you can't do that, you will get the fallback from 21.3 AND the
fallback from here.
That would be my understanding.
What would happen if I did this?
<video src="big_264.mp4" type="video/mp4; codecs=mp4v.21.3">
<video src="medium.mp4" type="video/mp4; codecs=mp4v.20.9">
<img src="small.png" alt="alternate image for non-video
browsers" />
</video>
<img src="small2.png" alt="More alternate text" />
</video>
Which fallback is the correct if I can't use either mp4v.21.3 or
mp4v.20.9? Do I show one or both fallbacks? What if I can't do
21.3, but can do 20.9, do I show the 21.3. fallback or not?
--
Arve Bersvendsen, Web Applications Developer
Opera Software ASA, http://www.opera.com/