问题
I install and configured the Wowza server and it is working fine as following screenshot:
After that I copied the MPEG DASH URL and I tested on jwplayer (they have a page to test MPEG DASH videos: http://www.jwplayer.com/innovation/roadmap/mpeg-dash) as following and it is working:
The JWPlayer has a quality selector button by default, but when I used the wawza default video sample, the quality button disappears!
回答1:
The reason why you don't see the quality selector button in JWPlayer is because there are no alternate renditions of your video.
The Wowza Transcoder add-on works with Live streams and your link is a VOD (video on demand).
There are two ways to make this work:
Create the frame-aligned renditions of your video file manually and use SMIL files to provide an adaptive bitrate stream.
Create a Wowza module and use the
Streamclass to publish a live stream using your static video file as input. Then pass this live stream to the transcoder add-on to automatically create the adaptive bitrate stream.
Good luck!
Update:
If you don't have the time to do this for your demo you can use the files hosted on the Wowza website:
- bigbuckbunny_450.mp4 (450kbps total bitrate)
- bigbuckbunny_750.mp4 (750kbps total bitrate)
- bigbuckbunny_1100.mp4 (1100kbps total bitrate)
- bigbuckbunny_1500.mp4 (1500kbps total bitrate)
来源：https://stackoverflow.com/questions/31956759/jwplayer-quality-button-disappear-with-wowza-mpeg-dash-videos