# Wowza GoCoder SDK Audio only streaming?

**URL:** <https://community.wowza.com/t/wowza-gocoder-sdk-audio-only-streaming/47535>\
**Category:** Wowza GoCoder SDK\
**Created:** [September 30, 2016, 3:55pm UTC](https://community.wowza.com/t/wowza-gocoder-sdk-audio-only-streaming/47535 "2016-09-30T15:55:40Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Johannes\_Pohl](https://avatars.discourse-cdn.com/v4/letter/j/a9a28c/32.png) [@Johannes\_Pohl](https://community.wowza.com/u/Johannes_Pohl)\
**Post date:** [September 30, 2016, 3:55pm UTC](https://community.wowza.com/t/wowza-gocoder-sdk-audio-only-streaming/47535/1 "2016-09-30T15:55:40Z")

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Hi,

is it possible to do disable video as in the Wowza Gocoder App?

Setting “videoEnabled” to false results in a broken recorded file of 160 bytes

I’m using the SDKSampleApp.swift from “gocoder-sdk-ios-build-0565-v1.0.3”

The config is done like this:

goCoder?.config.videoEnabled = false

goCoder?.startStreaming(self)

the wowzastreamingengine\_access.log states “Video codec: UNKNOWN”. When using the Gocoder App, nothing about video appears in the log.

The wowzastreamingengine\_access.log looks like this:

2016-09-30 16:44:13 LiveStreamPacketizerSanJose.handlePacket[live/_definst_/myStream]: Video codec: UNKNOWN[15]

2016-09-30 16:44:13 LiveStreamPacketizerCupertino.init[live/_definst_/myStream]: chunkDurationTarget: 1000

2016-09-30 16:44:13 LiveStreamPacketizerSanJose.handlePacket[live/_definst_/myStream]: Audio codec: AAC

2016-09-30 16:44:13 LiveStreamPacketizerCupertino.init[live/_definst_/myStream]: audioGroupCount: 3

2016-09-30 16:44:13 LiveStreamPacketizerCupertino.init[live/_definst_/myStream]: playlistChunkCount:3

2016-09-30 16:44:13 MediaStreamMap.getLiveStreamPacketizer[live/_definst_/myStream]: Create live stream packetizer: cupertinostreamingpacketizer:myStream

2016-09-30 16:44:13 CupertinoPacketHandler.startStream[live/_definst_/myStream]

2016-09-30 16:44:13 LiveStreamPacketizerCupertino.handlePacket[live/_definst_/myStream]: Video codec:UNKNOWN[15] isCompatible:false

2016-09-30 16:44:13 LiveStreamPacketizerCupertino.handlePacket[live/_definst_/myStream]: Audio codec:AAC isCompatible:true

2016-09-30 16:44:13 LiveStreamPacketizerCupertino.handlePacket[live/_definst_/myStream][mp4a.40.2]: AAC Audio info: {AACFrame: codec:AAC, channels:2, frequency:44100, samplesPerFrame:1024, objectType:LC}

2016-09-30 16:44:13 CupertinoPacketHandler.handleHolder[live/_definst_/myStream]: Invalid video codec for iPhone/iPod: UNKNOWN[15]

Thanks in advance,

Johannes

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**Author:** ![Michelle\_B](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/michelle_b/32/394_2.png) [@Michelle\_B](https://community.wowza.com/u/Michelle_B)\
**Post date:** [December 19, 2016, 4:06pm UTC](https://community.wowza.com/t/wowza-gocoder-sdk-audio-only-streaming/47535/2 "2016-12-19T16:06:30Z")

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Hi Johannes,

You should be able to generate an audio-only stream from your SDK app. Do please [generate error log output from your SDK app](https://www.wowza.com/resources/gocodersdk/docs/1.0/dev-guide-platform-logging-error/) and send this log info along with your XCode project files through a support ticket.

Michelle