# Disabling transcoding for some inputs

**URL:** <https://community.wowza.com/t/disabling-transcoding-for-some-inputs/93884>\
**Category:** Wowza Streaming Engine\
**Tags:** transcoder\
**Created:** [September 29, 2021, 1:29am UTC](https://community.wowza.com/t/disabling-transcoding-for-some-inputs/93884 "2021-09-29T01:29:52Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Matthew\_Hailwood](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/matthew_hailwood/32/815_2.png) [@Matthew\_Hailwood](https://community.wowza.com/u/Matthew_Hailwood)\
**Post date:** [September 29, 2021, 1:29am UTC](https://community.wowza.com/t/disabling-transcoding-for-some-inputs/93884/1 "2021-09-29T01:29:52Z")

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We’re using moduleAvMix as we’d like to be able to take the audio from one input and mux it into the video of other inputs. This is working well.

We also have our transcoder setup to output a few different bitrates. This is also working well.

Combining them we’re running into issues though.  
What we’re finding is that the input streams for the muxing are being transcoded which is a lot of work the wowza instance doesn’t need to be doing.

Currently we end up with this

### no\_muxing

- Transcoded to source resolution
- Transcoded to 720p
- Transcoded to 480p
- Transcoded to 160p

### primary\_input\_and\_output

- Transcoded to source resolution
- Transcoded to 720p
- Transcoded to 480p
- Transcoded to 160p

### muxed\_input1

- Transcoded to source resolution
- Transcoded to 720p
- Transcoded to 480p
- Transcoded to 160p

### muxed\_output1

- Transcoded to source resolution
- Transcoded to 720p
- Transcoded to 480p
- Transcoded to 160p

### muxed\_input2

- Transcoded to source resolution
- Transcoded to 720p
- Transcoded to 480p
- Transcoded to 160p

### muxed\_output2

- Transcoded to source resolution
- Transcoded to 720p
- Transcoded to 480p
- Transcoded to 160p

So in total we have 24 transcoding processes  
However we never display the muxed\_inputs directly to end users so ideally we’d have

### no\_muxing

- Transcoded to source resolution
- Transcoded to 720p
- Transcoded to 480p
- Transcoded to 160p

### primary\_input\_and\_output

- Transcoded to source resolution
- Transcoded to 720p
- Transcoded to 480p
- Transcoded to 160p

### muxed\_input1

- no transcoding

### muxed\_output1

- Transcoded to source resolution
- Transcoded to 720p
- Transcoded to 480p
- Transcoded to 160p

### muxed\_input2

- no transcoding

### muxed\_output2

- Transcoded to source resolution
- Transcoded to 720p
- Transcoded to 480p
- Transcoded to 160p

Which would drop eight transcoding processes.

Can anyone provide any assistance with setting this up?  
Note that we’re setting all these up through the wowza api, although I should be able to translate anything we do in the manager to the api.

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<div class="post-metadata">

**Author:** ![Rose\_Power-Wowza\_Com](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/rose_power-wowza_com/32/431_2.png) [@Rose\_Power-Wowza\_Com](https://community.wowza.com/u/Rose_Power-Wowza_Com)\
**Post date:** [September 29, 2021, 7:46pm UTC](https://community.wowza.com/t/disabling-transcoding-for-some-inputs/93884/2 "2021-09-29T19:46:33Z")

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Hey there @Matthew_Hailwood, I have an idea on how you might be able to do this, but I need to confirm it with tech support. I’ll be back soon here to update you. Thanks.

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<div class="post-metadata">

**Author:** ![Rose\_Power-Wowza\_Com](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/rose_power-wowza_com/32/431_2.png) [@Rose\_Power-Wowza\_Com](https://community.wowza.com/u/Rose_Power-Wowza_Com)\
**Post date:** [September 29, 2021, 10:20pm UTC](https://community.wowza.com/t/disabling-transcoding-for-some-inputs/93884/3 "2021-09-29T22:20:52Z")

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Still waiting for feedback and haven’t forgotten.

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<div class="post-metadata">

**Author:** ![Rose\_Power-Wowza\_Com](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/rose_power-wowza_com/32/431_2.png) [@Rose\_Power-Wowza\_Com](https://community.wowza.com/u/Rose_Power-Wowza_Com)\
**Post date:** [September 29, 2021, 10:47pm UTC](https://community.wowza.com/t/disabling-transcoding-for-some-inputs/93884/4 "2021-09-29T22:47:31Z")

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You can try this and we think it should work, but an engineer will be able to test it out tomorrow. I figured I would share now though so you can give it a try.

[https://www.wowza.com/docs/how-to-control-which-streams-get-transcoded-moduletranscodercontrol](https://www.wowza.com/docs/how-to-control-which-streams-get-transcoded-moduletranscodercontrol)