# Transcoding crashed server unexpectedly
**URL:** https://community.wowza.com/t/transcoding-crashed-server-unexpectedly/36220
**Category:** Wowza Streaming Engine
**Created:** [September 11, 2014, 9:54am UTC](https://community.wowza.com/t/transcoding-crashed-server-unexpectedly/36220 "2014-09-11T09:54:40Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@Eddie\_Hermoso](https://community.wowza.com/u/Eddie_Hermoso)
#### Post date: [September 11, 2014, 9:54am UTC](https://community.wowza.com/t/transcoding-crashed-server-unexpectedly/36220/1 "2014-09-11T09:54:40Z")
I incorrectly posted this in the Streaming Engine forum so posting this properly.
Our Wowza server crashed randomly. Looking at the logs, it appears to be related to the real-time transcoder. Both the error.log and access.log have this final entry and then it crashed:
TranscoderWorkerVideoDecoder.setupDecoder: Error videoDecoderCreate: 4294967295
Can you please assist? Here are the last error logs
```auto
WARN server comment 2014-09-10 19:12:51 - - - - - 599364.15 - - - - - - - - TranscodingSession.handlePacket[phlive/_definst_]: Video codec is not supported by transcoder. Can only be used as PassThru: VP6
WARN server comment 2014-09-10 19:12:51 - - - - - 599364.153 - - - - - - - - TranscodingSession.setupDecoder[_defaultVHost_:phlive/_definst_/wkkzssyfln_a]: MP3 sample rate is not supported by decoder [22050]. Supported sample rates [32000, 44100, 48000]. Audio will not be processed.
WARN server comment 2014-09-10 19:12:51 - - - - - 599364.155 - - - - - - - - CupertinoPacketHandler.handleHolder[phlive/_definst_/wkkzssyfln_a]: Invalid video codec for iPhone/iPod: VP6
WARN server comment 2014-09-10 19:14:04 - - - - - 599437.063 - - - - - - - - TranscodingSession.handlePacket[phlive/_definst_]: Video codec is not supported by transcoder. Can only be used as PassThru: VP6
WARN server comment 2014-09-10 19:14:04 - - - - - 599437.067 - - - - - - - - TranscodingSession.setupDecoder[_defaultVHost_:phlive/_definst_/wkkzssyfln_a]: MP3 sample rate is not supported by decoder [22050]. Supported sample rates [32000, 44100, 48000]. Audio will not be processed.
WARN server comment 2014-09-10 19:14:04 - - - - - 599437.075 - - - - - - - - CupertinoPacketHandler.handleHolder[phlive/_definst_/wkkzssyfln_a]: Invalid video codec for iPhone/iPod: VP6
WARN server comment 2014-09-10 19:15:09 - - - - - 599501.627 - - - - - - - - TranscodingSession.handlePacket[phlive/_definst_]: Video codec is not supported by transcoder. Can only be used as PassThru: VP6
WARN server comment 2014-09-10 19:15:09 - - - - - 599501.634 - - - - - - - - CupertinoPacketHandler.handleHolder[phlive/_definst_/wkkzssyfln]: Invalid video codec for iPhone/iPod: VP6
WARN server comment 2014-09-10 19:15:26 - - - - - 599518.601 - - - - - - - - TranscoderWorkerVideoDecoder.handlePacketVideo[_defaultVHost_:phlive/_definst_/wkkzssyfln]: Video decoder pending frame count[176] is greater than limit[150], resetting
WARN server comment 2014-09-10 19:15:26 - - - - - 599518.601 - - - - - - - - TranscoderWorkerVideoDecoder.setupDecoder: Error videoDecoderCreate: 4294967295
```
**access\_log**
```auto
2014-09-10 19:15:26 GMT-00:00 comment server INFO 200 - LiveStreamPacketizerSanJose.endChunkTS[phlive/_definst_/wkkzssyfln_a]: Add chunk: id:8 a/v/k:390/112/2 duration:10182 - - - 599518.528 - - - - - - - - - - - - - - - - - -- - - - - - -
2014-09-10 19:15:26 GMT-00:00 comment server WARN 200 - TranscoderWorkerVideoDecoder.handlePacketVideo[_defaultVHost_:phlive/_definst_/wkkzssyfln]: Video decoder pending frame count[176] is greater than limit[150], resetting - - - 599518.601 - - - - - - - - - - -- - - - - - - - - - - - - -
2014-09-10 19:15:26 GMT-00:00 comment server WARN 200 - TranscoderWorkerVideoDecoder.setupDecoder: Error videoDecoderCreate: 4294967295 - - - 599518.601 - - - - - - - - - - - - - - - - - - - - - - -- -
```
---
### Author:  [@sal\_jefferson](https://community.wowza.com/u/sal_jefferson)
#### Post date: [September 11, 2014, 9:19am UTC](https://community.wowza.com/t/transcoding-crashed-server-unexpectedly/36220/2 "2014-09-11T09:19:52Z")
Hi there.
Your stream is VP6 video, which is not supported for decode by Wowza Transcoder. Use h.264 video if possible. Also, “MP3 sample rate is not supported by decoder [22050]. Supported sample rates [32000, 44100, 48000]” try changing the sample rate to on of the listed supported sample rates:
Supported sample rates [32000, 44100, 48000]
I hope this helps.
Salvadore
---
### Author:  [@Eddie\_Hermoso](https://community.wowza.com/u/Eddie_Hermoso)
#### Post date: [September 12, 2014, 4:15pm UTC](https://community.wowza.com/t/transcoding-crashed-server-unexpectedly/36220/3 "2014-09-12T16:15:45Z")
Thanks Salvadore. I understand the incompatibilities. Sometimes our customers have now idea how to set up their encoder properly, but why the server crash? Does Wowza crash every time the wrong codecs are being sent?
---
### Author:  [@sal\_jefferson](https://community.wowza.com/u/sal_jefferson)
#### Post date: [September 12, 2014, 4:56pm UTC](https://community.wowza.com/t/transcoding-crashed-server-unexpectedly/36220/4 "2014-09-12T16:56:04Z")
I am not sure why that would crash the server, or if that is what did crash the server. We can get a better understanding of what happened by taking a look at the following folders:
**[install-dir]/conf**
**[install-dir]/logs**
**[install-dir]/transcoder**
**[install-dir]/manager/logs**
Please zip these folders up and send them along with a link to this thread for reference to support@wowza.com to open a support ticket.
Thank you.
Salvadore