New: Ability to specify a play start time and duration for HTTP streaming

**enigma** · 09-14-2011, 08:28 PM

i will try it...

**velshome** · 09-18-2011, 11:23 AM

For me the .smil method works halfway, i.e. the file plays, but always from the beginning.
I've tried specifying begin="30" instead of begin="0.30" but it still plays from the beginning.
Also, the first line of your example (first post) seems to be missing playlist.m3u8

Here's the smil file:

I'm using osmf demo player (http://osmf.org/configurator/fmp/#) with the following line:
http://localhost:1935/vod/_definst_/...l/manifest.f4m

P.S.
I am using Wowza 3 preview 4

**rrlanham** · 09-19-2011, 05:18 AM

Does the .flv file actually contains h.264 video and AAC or MP3 audio? It might work better to be an actual quicktime (eg .mp4) container.

Richard

**velshome** · 09-19-2011, 06:06 AM

Richard,

It does, it's H264 Baseline and AAC audio.
But just to be on a safe side I've tested with sample.mp4 that comes with Wowza (the 'Bunny clip') and the results are the same - video plays from the beginning no matter what is specified in begin='' option.

**rrlanham** · 09-19-2011, 08:16 AM

I am getting same, and have forwarded issue. We'll get back to you.

Also, in my test "0.40" is 400 milliseconds, so it should be "4.0" to be 4 seconds. We'll update the doc.

Thanks,
Richard

**rrlanham** · 09-19-2011, 08:19 AM

Also, this does not work to create a sequential playlist. I had indicated that is was, that was wrong.

Richard

**rrlanham** · 09-19-2011, 10:27 AM

The article is updated. Use the updated example. It was just the decimal place being off.

Richard

**velshome** · 09-19-2011, 11:41 AM

Richard,

Thanks for the update !
Tried with begin="40.0" and 400.0 and even 4000.0 - still plays from the start of the file (sample.mp4)

Also, would you recommend a way to create sequential playlist on server side ?
If I use MediaList API to create a module, would I be able to have more than one file in playlist ?

What I'm trying to accomplish is to play a number of files, starting at a specific position in first file, then playing it till the end, then playing the rest of the files and stopping at some point in the last file.

Thanks !

**rrlanham** · 09-19-2011, 11:44 AM

Try deleting the phone's safari cache. It did work for me. Or make a new file new.smil. Copy this exactly:

Code:

<smil>
 <head>
 </head>
 <body>
  <switch>
   <video begin="30.0" dur="40.0" src="mp4:sample.mp4" system-bitrate="450000"/>
  </switch>
 </body>
</smil>

Richard

**velshome** · 09-19-2011, 11:58 AM

Created new smil file with your code (copy/paste), moved sample.mp4 to the same location as .smil file - still the same.

I'm actually using OSMF player to test, not IPhone (http://osmf.org/configurator/fmp/#)
Can't test with iPhone now, but will try it a bit later.

Can it be a problem of smoothstreaming ?

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