# writePacket output

**URL:** <https://community.wowza.com/t/writepacket-output/41643>\
**Category:** Wowza Streaming Engine\
**Created:** [July 15, 2015, 4:47pm UTC](https://community.wowza.com/t/writepacket-output/41643 "2015-07-15T16:47:15Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![snip3rboy\_nyc](https://avatars.discourse-cdn.com/v4/letter/s/f9ae1b/32.png) [@snip3rboy\_nyc](https://community.wowza.com/u/snip3rboy_nyc)\
**Post date:** [July 15, 2015, 4:47pm UTC](https://community.wowza.com/t/writepacket-output/41643/1 "2015-07-15T16:47:15Z")

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Hi,

Can someone please direct me to documentation on what these values in the writePacket logs mean?

2015-07-16 00:03:46 UTC comment server DEBUG 200 - writePacket[vid]: sz:45 tc:3861558859:565508273:1437005026129:200 key:false - - - 1208.728

2015-07-16 00:03:32 UTC comment server DEBUG 200 - writePacket[aud]: sz:131 tc:3861545934:952792064:1437005012945:0 - - - 1195.544

Thanks in advance!

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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:** [July 16, 2015, 6:22am UTC](https://community.wowza.com/t/writepacket-output/41643/2 "2015-07-16T06:22:31Z")

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Hello there.

You can find documentation for this in the [Server Side API](https://www.wowza.com/resources/WowzaStreamingEngine_ServerSideAPI.pdf)

It is important to be sure you are are getting key frames. You should see a log statement that looks like this where key:true:

```auto
writePacket[vid]: sz:9738 tc:1288019536983:107659:1288019536983:0 key:true

```

Also, if you do not want to see all the **DEBUG** messages you can edit **_conf/log4j_**.properties and changing the log level on the first line from **DEBUG** to **INFO**

Regards,

Salvadore