Format Support by Input Container - AWS Elemental Live

This is version 2.18 of the AWS Elemental Live documentation. This is the latest version. For prior versions, see the Previous Versions section of AWS Elemental Live and AWS Elemental Statmux Documentation.

Format Support by Input Container

This section reviews the options for captions format support by input container, including source captions inside the input container and source captions as an external file.

When Source Captions Are Inside the Input Container

If the source captions are inside the input container, you can include them in the input only if AWS Elemental Live can extract the captions from the container. AWS Elemental Live can extract captions only from specific input container types. The following table shows which captions can be extracted for each input and container type.

Type of Input Container Captions Can Be Extracted from Container?
File Adobe Flash container
File Audio Video Interleave (AVI) container
File HLS container Yes
File Matroska container
File MP4 container Yes
File MPEG Transport Stream (TS) Yes
File MPEG-1 System Stream
File MXF container Yes
File No container Yes
File QuickTime container Yes
File Transport Stream Yes
File WMV/ASF container
Stream HLS Yes
Stream RTMP Yes
Stream SDI Yes
Stream UDP/RTP Yes

When Source Captions Are an External File

If the source captions are an external file (sidecar) in one of the supported formats (for example, an SRT file), you can include them in the transcoding regardless of the constraints of the input container.