# MacOS Transcode Unknown Source

**URL:** <https://devforum.zoom.us/t/macos-transcode-unknown-source/53581>\
**Category:** Windows\
**Created:** [July 5, 2021, 6:04am UTC](https://devforum.zoom.us/t/macos-transcode-unknown-source/53581 "2021-07-05T06:04:11Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![harry130899](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/harry130899/32/28866_2.png) [@harry130899](https://devforum.zoom.us/u/harry130899)\
**Post date:** [July 5, 2021, 6:04am UTC](https://devforum.zoom.us/t/macos-transcode-unknown-source/53581/1 "2021-07-05T06:04:12Z")

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**Description**  
We have a customised zoom windows application (using the Windows C# SDK) that generates encoded “.meetingrec” recording files. We are trying to transcode these recordings from a MacOS commandline script - using the “Transcoder.app” executable. We want to automate this process, however we have been receiving a Dialogue Pop-Up saying that the encoded file is from an “unknown source” and such we need to click “convert anyway”. Is there anyway to avoid this Pop-Up so we can automate this process.

**To Reproduce(If applicable)**  
Steps to reproduce the behavior:

1. Make a recording on a Windows machine
2. Import the recording to a Mac
3. Rename the recording files to “double\_click\_to\_convert\_0#.zoom”
4. From the command line, call “Transcoder.app”'s executable, passing one of the encoded files as an argument
5. See the popup  
**Screenshots**  
 ![Screen Shot 2021-07-05 at 4.02.39 pm](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/8/3/836d7e287b9607d832d9c9ce765ea68d8d424729.png)

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**Author:** ![Michael\_Condon](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/michael_condon/32/13543_2.png) [@Michael\_Condon](https://devforum.zoom.us/u/Michael_Condon)\
**Post date:** [July 7, 2021, 7:19pm UTC](https://devforum.zoom.us/t/macos-transcode-unknown-source/53581/2 "2021-07-07T19:19:20Z")

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Hey @harry130899,

Thanks for using the dev forum!

Does this also happen when you use the Zoom client to produce the recording instead of the SDK?

Thanks!  
Michael

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**Author:** ![harry130899](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/harry130899/32/28866_2.png) [@harry130899](https://devforum.zoom.us/u/harry130899)\
**Post date:** [July 13, 2021, 5:18am UTC](https://devforum.zoom.us/t/macos-transcode-unknown-source/53581/3 "2021-07-13T05:18:11Z")

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Hi!

Thanks for the reply.  
This doesn’t happen when the client is used. However, we are using the SDK system to automatically join meetings and begin recording - so using the client to manually create the recordings is not a feasible solution.

It is also worth noting that if we use “zTscoder.exe” from the SDK on a windows machine, it doesn’t happen, whereas, it does happen when using “Transcoder.app” on a MacOS machine.

Thanks!  
Harrison

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**Author:** ![Michael\_Condon](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/michael_condon/32/13543_2.png) [@Michael\_Condon](https://devforum.zoom.us/u/Michael_Condon)\
**Post date:** [July 13, 2021, 8:05pm UTC](https://devforum.zoom.us/t/macos-transcode-unknown-source/53581/4 "2021-07-13T20:05:12Z")

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Hey @harry130899,

Hmm that is interesting. I would contact Apple Developer Support about this one. This is unfortunately out of scope for our SDK support.

Thanks!  
Michael

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**Author:** ![system](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/6/1/614bdd549b610bbaa46ff934617683a02bdaa03c.png) [@system](https://devforum.zoom.us/u/system)\
**Post date:** [August 13, 2021, 6:05am UTC](https://devforum.zoom.us/t/macos-transcode-unknown-source/53581/5 "2021-08-13T06:05:31Z")

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Closed on August 13, 2021, 6:05am UTC

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