Accelerated transcoding job settings requirements - MediaConvert

Accelerated transcoding job settings requirements

Before you enable Accelerated transcoding, make sure that your job conforms to the following requirements and limitations.

Video inputs supported with Accelerated transcoding

The following table shows the video input codecs and containers that MediaConvert supports with Accelerated transcoding.

Container Video Codecs Supported with Container
HLS (MPEG-2 TS segments) AVC (H.264), HEVC (H.265)
IMF JPEG 2000 (J2K)
Matroska AVC (H.264), MPEG-2, MPEG-4 part 2, VC-1
MPEG Transport Streams AVC (H.264), HEVC (H.265), MPEG-2, VC-1
MPEG-4 AVC Intra 50/100, AVC (H.264), HEVC (H.265), MPEG-2
MXF Apple ProRes, AVC Intra 50/100, AVC (H.264), JPEG 2000 (J2K), MPEG-2, SonyXDCam, SonyXDCam (as an MPEG-2 variant only), VC-3
QuickTime Apple ProRes, AVC Intra 50/100, AVC (H.264), JPEG 2000 (J2K), MPEG-2
Note

For HLS inputs, your package must conform to the requirements listed in HLS input requirements.

Video outputs supported with Accelerated transcoding

The following table shows the video output codecs and containers that MediaConvert supports with Accelerated transcoding.

Container Codecs Supported with Container
CMAF AV1, AVC (H.264), HEVC (H.265)
DASH AV1, AVC (H.264), HEVC (H.265)
HLS AVC (H.264), HEVC (H.265)
MPEG-2 TS AVC (H.264), HEVC (H.265)
MPEG-4 (.mp4) AV1, AVC (H.264), HEVC (H.265)
MPEG-4 Flash (.f4v) AVC (H.264)
MXF AVC (H.264)
QuickTime AVC (H.264)
Smooth (ISMV) AVC (H.264)
WebM VP8, VP9
Raw (no container) AVC (H.264), HEVC (H.265)
Note

For MPEG-2 TS outputs, to use Accelerated transcoding, you must change the default value of CBR for Transport stream settings > Rate mode to VBR.

Output restrictions
  • Your output must have a video component. MediaConvert doesn't support Accelerated transcoding with audio-only outputs.

  • Use only supported combinations of container and codec. The preceding table shows the supported video output codecs and containers.

  • Use any output audio codec other than Dolby Atmos. MediaConvert doesn't support Accelerated transcoding with Dolby Atmos.

  • Use only supported output captions formats. For Accelerated transcoding, MediaConvert doesn’t support the following output captions formats:

    • Not supported: Burn-in

    • Not supported: SCTE-20

    For a list of supported captions formats, see Supported input captions, within video containers.

Transcoding features not supported with Accelerated transcoding
  • Avail blanking

  • Motion image inserter

  • Interpolated frame rate conversion

  • VBI passthrough

  • Timecode passthrough

  • SEI timecode

  • Timecode anchor

  • Telecine output

  • Inverse telecine output

  • Embedded timecode source

    Note

    With Accelerated transcoding, you can set the input setting Timecode source to Embedded, but not the job-wide setting Source under Timecode configuration.

  • Black video generator

  • Pad video

  • Inputs with variable frame rates

  • Inputs with discontinuities