user24169: I am looking for a video file transcoding solution that I can run on an on-premises server and access via a REST API.
While I found lots of commercial cloud services (e.g. https://www.filestack.com/products/audio-video-transformations/ or https://zencoder.com/en/), I could not find an on-premises video transcoding server, neither open source nor commercial.
Do you have recommendations? Do you use a custom built solution?

user4426: Telestream used to make one called FlipFactory that I have used (a long time ago). I believe it's called Vantage now. https://www.telestream.net/vantage/overview.htm
A lot of people do this kind of thing in the cloud now using things like Amazon's Elastic Transcoder 
https://aws.amazon.com/elastictranscoder/

24169: <p>I am looking for a video file transcoding solution that I can run on an on-premises server and access via a REST API.</p>

<p>While I found lots of commercial cloud services (e.g. <a href="https://www.filestack.com/products/audio-video-transformations/" rel="nofollow noreferrer">https://www.filestack.com/products/audio-video-transformations/</a> or <a href="https://zencoder.com/en/" rel="nofollow noreferrer">https://zencoder.com/en/</a>), I could not find an on-premises video transcoding server, neither open source nor commercial.</p>

<p>Do you have recommendations? Do you use a custom built solution?</p>
 4426: <p>Telestream used to make one called FlipFactory that I have used (a long time ago). I believe it's called Vantage now. <a href="https://www.telestream.net/vantage/overview.htm" rel="nofollow noreferrer">https://www.telestream.net/vantage/overview.htm</a>
A lot of people do this kind of thing in the cloud now using things like Amazon's Elastic Transcoder 
<a href="https://aws.amazon.com/elastictranscoder/" rel="nofollow noreferrer">https://aws.amazon.com/elastictranscoder/</a></p>
