# How to play nDVR sliding video with offset?
**URL:** https://community.wowza.com/t/how-to-play-ndvr-sliding-video-with-offset/49885
**Category:** Wowza Streaming Engine
**Created:** [October 10, 2017, 5:47am UTC](https://community.wowza.com/t/how-to-play-ndvr-sliding-video-with-offset/49885 "2017-10-10T05:47:46Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@CNF\_CNF](https://community.wowza.com/u/CNF_CNF)
#### Post date: [October 10, 2017, 5:47am UTC](https://community.wowza.com/t/how-to-play-ndvr-sliding-video-with-offset/49885/1 "2017-10-10T05:47:46Z")
Hi,
Lets assume I have a 1 hour buffer with the nDVR - i.e. 3600 seconds.
I may want to start the video from the current time (“live point”), the earliest time (1 hour behind the “live” point) or somewhere in between.
I want to be able to control the player to start playing at a particular instant. Is this possible?
As an example:
1. [http://mydomain.com/ndvr?t=0](http://mydomain.com/ndvr?t=0) (live point)
2. [http://mydomain.com/ndvr?t=-3600](http://mydomain.com/ndvr?t=-3600) (start from one hour ago -i.e. oldest point in buffer)
3. [http://mydomain.com/ndvr?t=-1800](http://mydomain.com/ndvr?t=-1800) (start from 30 minutes ago)
Thanks
---
### Author:  [@Paul\_Shields](https://community.wowza.com/u/Paul_Shields)
#### Post date: [February 13, 2018, 9:54am UTC](https://community.wowza.com/t/how-to-play-ndvr-sliding-video-with-offset/49885/2 "2018-02-13T09:54:27Z")
Hi,
You can use the DVR playlist delegate (or construct your own) to specify where in the DVR store you wish to begin playback. Please see the examples in our [DVR Playist Request API](https://www.wowza.com/docs/How-to-use-Wowza-nDVR-Playlist-Request-API) article for examples where the query parameter wowzadvrplayliststart is used to specify the start point.
Regards,
Paul