Supplying SCC subtitles to MediaLive without embedding them into the MP4 file

Question

Hi,

Is there any way to supply SCC subtitles (eg CEA-608) to a MediaLive input stream as a separate file / link, rather than embedding them into an MP4 file?

Thank you!

Answer

[AWS Elemental MediaLive](https://aws.amazon.com/medialive/) does not support SCC caption sidecar. The supported caption/subtitle formats are listed [here](https://docs.aws.amazon.com/medialive/latest/ug/general-information-supported-formats.html).
Alternate option is to use [AWS Elemental MediaConvert](https://aws.amazon.com/mediaconvert/) to convert mp4 file with scc caption sidecar file into an mp4 file with embedded captions that will work in MediaLive. The list of supported input captions/subtitles in sidecar format for mp4 output are listed [here](https://docs.aws.amazon.com/mediaconvert/latest/ug/sidecar-captions-support-tables-by-container-type.html#sidecar-mp4-output-container).
If you need help in setting up a easy to use file transcode workflow with MediaConvert workflow, I would recommend deploying the [VOD on AWS Foundations](https://aws.amazon.com/solutions/implementations/video-on-demand-on-aws/) solution.

Supplying SCC subtitles to MediaLive without embedding them into the MP4 file

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