问题
Im wondering why my mp4 html5 video is not "streaming" and instead waits till it is fully downloaded before it starts playing in safari.
www.pija.se
I have tried QTIndexSwapper but it says the index is in the right position.
Any help appreciated.
回答1:
looks like the MOOV atom isn't at the beginning of the file. I used ffmpeg to just relocate that (no other encoding) and then a binary compare (using HexFiend) and a quick test seemed to show that Safari was playing the video sooner
./ffmpeg -i top.mp4 -codec copy -movflags faststart top-fs.mp4
(caveat being that even though I cleared browser cache I didn't do things like bounce my test server or time things too accurately)
FWIW I find ffmpeg to be a good solution, and especially for background video you'll want to play around with parameters to optimize for your use-case
来源：https://stackoverflow.com/questions/28503324/html5-video-safari-downloads-full-before-playing