explicit field order #70
Description
The filed order of struct is probably not guaranteed in future versions of Go compiler ???
https://stackoverflow.com/questions/32392311/reflect-type-field-order
If so, we should have order expressly.
For example:
type Emsg struct {
FullBox `mp4:"0,extend"`
SchemeIdUri string `mp4:"1,string"`
Value string `mp4:"2,string"`
Timescale uint32 `mp4:"3,size=32"`
PresentationTimeDelta uint32 `mp4:"4,size=32,ver=0"`
PresentationTime uint64 `mp4:"5,size=64,ver=1"`
EventDuration uint32 `mp4:"6,size=32"`
Id uint32 `mp4:"7,size=32"`
MessageData []byte `mp4:"8,size=8,string"`
}