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Source Media ​

The following chapters describe the requirements for the Source Media Files. This is not related to Encoded Media Formats (that are delivered to the users).

Container ​

The following container formats are supported:

Container FormatSupported File ExtensionsVideoAudio
Matroskamkvyesyes
MPEG-4 Part 14mp4yesyes

Video ​

The following Video Codecs are supported:

  • AVC (also known as H.264)

The following Framerates are supported:

  • 23.98 (24000/1001)

Only progressive video is supported (no support for interlaced video).

Embedded Closed Captions are not supported.

Audio ​

The following Audio Codecs are supported:

  • AAC (Profile Low Complexity)
  • AC3 (Dolby Digital)
  • TrueHD (Dolby TrueHD)

The following Channel Layouts are supported:

  • Stereo
  • 5.1
  • 5.1 (side)

Each audio track must also have a valid audio language tag (title or description metadata is not used for language detection).

The Sample Rate must be 48.000 Hz.