Using DVR as an indexed Stream

[javicho]

Hello

I think this is theorically possible using the playlistrequestdelegate you provided, but cant get it properly working, and i have some question related to the dvr duration or the chunkes size.

I am planning a most complex service, but the example will show what i would like to get.

We got a 1 hour stream on dvr (dvr duration of 3600 secs), we record 1 hour only but is a continuous broadcasting and we want to provide 3 links
1st one to display 5 minutes from minute 2
2 from 30 to 40
and 3 one from 41 to 42.
so i am providing 3 links which provide the strobe player links like this ones:

http://mywowzaserver:1935/dvr/live4.stream/manifest.f4m?DVR%26wowzadvrplayliststart=120000%26 wowzadvrplaylistduration=300000",
http://mywowzaserver:1935/dvr/live4.stream/manifest.f4m?DVR%26wowzadvrplayliststart=1800000%2 6wowzadvrplaylistduration=600000",
http://mywowzaserver:1935/dvr/live4.stream/manifest.f4m?DVR%26wowzadvrplayliststart=2460000%2 6wowzadvrplaylistduration=60000",

But is seems to not work allways, sometimes it displayed the same point as previous example, and some time it started at the initial stream time, i set up the debug option but cant apreciate helpful information on logs.

Am i trying to do something is not supported, or should i modify chuks size?

Thanks

[ScottKell]

Hello

I think this is theorically possible using the playlistrequestdelegate you provided, but cant get it properly working, and i have some question related to the dvr duration or the chunkes size.

I am planning a most complex service, but the example will show what i would like to get.

We got a 1 hour stream on dvr (dvr duration of 3600 secs), we record 1 hour only but is a continuous broadcasting and we want to provide 3 links
1st one to display 5 minutes from minute 2
2 from 30 to 40
and 3 one from 41 to 42.
so i am providing 3 links which provide the strobe player links like this ones:

http://mywowzaserver:1935/dvr/live4.stream/manifest.f4m?DVR%26wowzadvrplayliststart=120000%26 wowzadvrplaylistduration=300000",
http://mywowzaserver:1935/dvr/live4.stream/manifest.f4m?DVR%26wowzadvrplayliststart=1800000%2 6wowzadvrplaylistduration=600000",
http://mywowzaserver:1935/dvr/live4.stream/manifest.f4m?DVR%26wowzadvrplayliststart=2460000%2 6wowzadvrplaylistduration=60000",

But is seems to not work allways, sometimes it displayed the same point as previous example, and some time it started at the initial stream time, i set up the debug option but cant apreciate helpful information on logs.

Am i trying to do something is not supported, or should i modify chuks size?

Thanks

The time scale the playlist delegate provides is in 'dvrTime' which starts at time=0 and progresses forward as the recording occurs.

If you use a 1 hour recording window, after one hour, dvrTime of zero no longer exists. It has fallen out of the recording window. For example with a one hour recording window, after 90 minutes of recording, the first available chunk will be at dvrTime=30 minutes.

I recommend using the example playlist delegate and writing your own. You can query available start times and use a delta from that.

http://www.wowza.com/forums/content....st-Request-API
Wowza nDVR Playlist Request API

The article has examples of querying the available times, creating playlist requests, etc.

[javicho]

The time scale the playlist delegate provides is in 'dvrTime' which starts at time=0 and progresses forward as the recording occurs.

If you use a 1 hour recording window, after one hour, dvrTime of zero no longer exists. It has fallen out of the recording window. For example with a one hour recording window, after 90 minutes of recording, the first available chunk will be at dvrTime=30 minutes.

I recommend using the example playlist delegate and writing your own. You can query available start times and use a delta from that.

http://www.wowza.com/forums/content....st-Request-API
Wowza nDVR Playlist Request API

The article has examples of querying the available times, creating playlist requests, etc.

I think i know what are yout saying, my example would only work 1st our after i started the streaming to wowza.
I am analizying log file, are xctx and xduration time related fields?

Thanks Scott

[ScottKell]

I think i know what are yout saying, my example would only work 1st our after i started the streaming to wowza.
I am analizying log file, are xctx and xduration time related fields?

Thanks Scott

Correct-- your example would only work before the recording hit one hour.

I have no idea what xctx and xduration are-- they aren't related the DVR.