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A
applepieeaster
Participant
October 11, 2011
Question

Live Sync / absolute time code

  • October 11, 2011
  • 1 reply
  • 2114 views

I'm trying to understand (or maybe misunderstand) how this works:

"Absolute Time Code

Ensure that existing time codes persist within media files to allow for richer synchronization between streams, improving interactive experiences (such as switching audio tracks or camera angles) with multibitrate and multistream video and synchronized playback events.

"

so from  this it seems that we can do multi cam live sync

i unedrstand that we =need (via FMLE) to change theconfig file

<streamsynchronization>

                              <!-- "true" to enable this feature, "false" to disable.                                                  -->

                              <enable>true</enable>

....

  </streamsynchronization>

and to allow< AssumeAbsoluteTime> in the application.xml

... can anyome point me to some documentation on this or have i totally misuandertsood this? Having done the above my streams dont sync?

I am also embedding the timecode via FMLE and triggering onFI

any help gratefull received

thanks

Matt

This topic has been closed for replies.

1 reply

S
Adobe Employee
SE_0208
Adobe Employee
October 11, 2011

Yes the config change needs to be done at FMLE end. Other encoders migth have similar settings but they migth be named differently - but lets just stick to FMLE as of now.

I think the line which you have pointed out migth be little confusing - actually ATC is meant for keeping streams consisting of Multi-bit rate set coming from single source. So it wont keep streams coming from different sources in sync - if your understood it way then like you said you misunderstood.

A
applepieeasterAuthor
Participant
October 12, 2011

Thanks for that ...

but how do you account for

http://www.adobe.com/products/flashmediaserver/amazonwebservices/

"Absolute Time Code

Ensure that existing time codes persist within media files to allow for richer synchronization between streams, improving interactive experiences (such as switching audio tracks or camera angles) with multibitrate and multistream video and synchronized playback events."

beccause surely switching camera angles requires multiple DIFFERENT streams and not multi bit rate or is this just for VOD?

S
Adobe Employee
SE_0208
Adobe Employee
October 12, 2011

Yes different camera angles would mean different streams - that's excatly what i said - may be the text here is not phrased correctly - i'll get in touch with right person to see if this can be rephrased. ATC works for live and i think its basically meant for live use case.

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