OSMF with HTTP stream seeking is resetting start index...


hi,

i have built osmf player allows users seek when resuming, scrub beginning.

 

eg:

 

a stream 1 minute long.

user starts play @ 25 seconds.

user can scrub 5 seconds or forward 55 seconds.

 

this works rtmp - timetrait reports correctly , video displays correctly.

 

eg:

start @ 25 seconds, timetrait reports: duration = 60, current position = 25 , displaying video 25.

seek 5 seconds rewinds current duration = 60, position = 5, displaying video 5.

 

but...

 

with http streams...

start @ 25 seconds. timetrait reports: duration = 60, current position = 25 , displaying video 50.

seek 5 seconds rewinds before start of stream , gives me media complete... end of stream.

start @ 30 seconds, timetrait reports duration = 60, current position = 30 , displaying video 60 so gives me media complete... end of stream.

 

it pretty clear happening http stream seeking resetting start index seek point, if had started play with:

 

netstream.play(seekpoint);

 

rather than:

 

netstream.play();

netstream.seek(seekpoint);

 

this, hasten add, horrendous issue client's point of view means cannot allow resume of content.

 

does have ideas, workarounds?

 

g

after digging osmf code i've found solution:

first, ensure have latest osmf source inside project.

for it's 2.0.71 (org.osmf.utils.version).

 

navigate org.osmf.net.httpstreaming.httpnetstream

and make changes:

1. change line # 1441

 

_initialtime = _dvrinfo != null ? _dvrinfo.starttime : currenttime;

 

to

 

_initialtime = _dvrinfo != null ? _dvrinfo.starttime : (_seektime > 0 ? _playstart : currenttime);

 

 

2. change line # 1496

 

_initialtime = currenttime

 

to

 

_initialtime = _seektime > 0 ? _playstart : currenttime

 

 

that's it!

now can listen mediaplayercapabilitychangeevent.can_seek_change event

and seek immediately.

 

by way: if you'll find bugs related change feel free post them here!



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