How can I stream from 3 cameras using one MediaLive channel

If what you are trying to accomplish is to have 3 RTMP push inputs and then change inputs at any given point in time during your live broadcast you can add several RTMP inputs in a single MediaLive channel. Currently the default limit for PUSH inputs is 5, please see the Medialive quotas here: https://console.aws.amazon.com/servicequotas/home?region=us-east-1#!/services/medialive/quotas

You can always request limit increases directly in your quota console.

To attach more than one input to a channel please see the following documentation: https://docs.aws.amazon.com/medialive/latest/ug/creating-a-channel-step2.html

Due to the limitation of only 2 Push inputs per channel you can attach the 3rd input as a Link device or other type of input, effectively this way overcoming the 2 push input limit. If you have the ability to use RTMP PULL inputs then this limit of Push Inputs will not apply since you can attach up to 20 PULL inputs.

Limits of attached inputs are defined here: https://docs.aws.amazon.com/medialive/latest/ug/eml-limitations-and-rules.html#limits-inputs

Once you have all your inputs attached to your channel and you have your channel running, you can switch input by using the Schedule and setting up Input Switching, instructions on how to perform input switching are here: https://docs.aws.amazon.com/medialive/latest/ug/schedule-and-switching.html

Hi,

I think that this series of 4 posts describes what you want to achieve: links to others in the last one https://aws.amazon.com/blogs/media/awse-how-to-create-multiple-medialive-inputs-using-same-elemental-link/

Best,

Didier