# How to measure video quality objectively

**URL:** <https://community.wowza.com/t/how-to-measure-video-quality-objectively/44522>\
**Category:** Wowza Streaming Engine\
**Created:** [January 6, 2015, 7:44pm UTC](https://community.wowza.com/t/how-to-measure-video-quality-objectively/44522 "2015-01-06T19:44:17Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![sal\_jefferson](https://avatars.discourse-cdn.com/v4/letter/s/6de8d8/32.png) [@sal\_jefferson](https://community.wowza.com/u/sal_jefferson)\
**Post date:** [January 7, 2015, 8:38am UTC](https://community.wowza.com/t/how-to-measure-video-quality-objectively/44522/2 "2015-01-07T08:38:29Z")

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Hello there and welcome to the Wowza support forum.

Please take a look at this module and see if it suits your needs:

[Module to calculate bitrate of a video on demand stream](http://community.wowza.com/t/-/80)

For live or static streams, the Quality of Service metrics in NetStream can show what you are actually consuming client-side:

```auto
import flash.net.NetStreamInfo;
// do this on interval or timer:
var nsi:NetStreamInfo;
nsi = netstream.info;
trace(nsi.dataBytesPerSecond);

```

For live streams, server-side, you can use IPerformanceCounter. There is getMessagesInCountRate() and getMessagesOutCountRate() which should give a snapshot.

Kind regards,

Salvadore

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