Best configuration for precise seeking in MP3

Wowza Streaming Engine
1

I’m using JW Media Player and Javascript to stream mp3 files from Wowza. Often the seeking is not as precisely as I’d like, but I’m having a hard time figuring out the pattern or where the problem is.

How precise is Wowza when seeking to an mp3 file? I’m making the call

player.sendEvent('SEEK', newPosition);

and I see in the wowza console that the seek is happening.

FEATURE REQUEST:

Can you add the playhead position to the console?

INFO stream seek /bid/15/MyHobby -
INFO stream play /bid/15/MyHobby -
INFO stream unpause /bid/15/MyHobby -
INFO stream stop /bid/15/MyHobby -

The above information would be more useful if it contained relevant timecodes – where it stops, starts, seeks, unpauses, etc.

My question: when I’m creating the mp3 file (usually from a video), are there some parameters I can change that would increase Wowza ability to precisely seek? Because I’m doing a lot of 2-3 second snippets, I’d like to be able to seek with 0.1 seconds, and now, well, now I’m not sure exactly what’s happening, even with a lot of debugging I think it’s hard to get exact values.

Also, is there anything else I can do within Wowza? I think I’ve properly changed the seekTarget values, but maybe I didn’t get all of them, or maybe I should be using ‘audio’.

<Property>
	<Name>seekTarget</Name>
	<!-- valid values are: videoKeyFrame, audio, enhanced //DEFAULT = videoKeyFrame -->
	<Value>enhanced</Value>
</Property>

Thanks!

Tac

2

I would definitely try “audio”

<Property>
	<Name>seekTarget</Name>
	<!-- valid values are: videoKeyFrame, audio, enhanced //DEFAULT = videoKeyFrame -->
	<Value>audio</Value>
</Property>

On the encoding side, the way to improve is greater frequency of keyframes.

Richard