Information about the album art that you want Elastic Transcoder to add to the file during transcoding. You can specify up to twenty album artworks for each output. Settings for each artwork must be defined in the job for the current output.

You can configure Elastic Transcoder to transcode captions, or subtitles, from one format to another. All captions must be in UTF-8. Elastic Transcoder supports two types of captions:

• Embedded: Embedded captions are included in the same file as the audio and video. Elastic Transcoder supports only one embedded caption per language, to a maximum of 300 embedded captions per file.

  Valid input values include:

  CopyC#

  CEA-608 (EIA-608

  , first non-empty channel only),
  CopyC#

  CEA-708 (EIA-708

  , first non-empty channel only), and
  CopyC#

  mov-text

  Valid outputs include:

  CopyC#

  mov-text

  Elastic Transcoder supports a maximum of one embedded format per output.

• Sidecar: Sidecar captions are kept in a separate metadata file from the audio and video data. Sidecar captions require a player that is capable of understanding the relationship between the video file and the sidecar file. Elastic Transcoder supports only one sidecar caption per language, to a maximum of 20 sidecar captions per file.

  Valid input values include:

  CopyC#

  dfxp

  (first div element only),
  CopyC#

  ebu-tt

  ,
  CopyC#

  scc

  ,
  CopyC#

  smpt

  ,
  CopyC#

  srt

  ,
  CopyC#

  ttml

  (first div element only), and
  CopyC#

  webvtt

  Valid outputs include:

  CopyC#

  dfxp

  (first div element only),
  CopyC#

  scc

  ,
  CopyC#

  srt

  , and
  CopyC#

  webvtt

  .

If you want ttml or smpte-tt compatible captions, specify dfxp as your output format.

Elastic Transcoder does not support OCR (Optical Character Recognition), does not accept pictures as a valid input for captions, and is not available for audio-only transcoding. Elastic Transcoder does not preserve text formatting (for example, italics) during the transcoding process.

To remove captions or leave the captions empty, set

CopyC#

Captions

CopyC#

MergePolicy

CopyC#

MergeRetain

CopyC#

CaptionSources

For more information on embedded files, see the Subtitles Wikipedia page.

For more information on sidecar files, see the Extensible Metadata Platform and Sidecar file Wikipedia pages.

You can create an output file that contains an excerpt from the input file. This excerpt, called a clip, can come from the beginning, middle, or end of the file. The Composition object contains settings for the clips that make up an output file. For the current release, you can only specify settings for a single clip per output file. The Composition object cannot be null.

The name to assign to the transcoded file. Elastic Transcoder saves the file in the Amazon S3 bucket specified by the

CopyC#

OutputBucket

The

CopyC#

Id

The number of degrees clockwise by which you want Elastic Transcoder to rotate the output relative to the input. Enter one of the following values:

CopyC#

auto

CopyC#

0

CopyC#

90

CopyC#

180

CopyC#

270

CopyC#

auto

If you specify a preset in

CopyC#

PresetId

CopyC#

Container

Whether you want Elastic Transcoder to create thumbnails for your videos and, if so, how you want Elastic Transcoder to name the files.

If you don't want Elastic Transcoder to create thumbnails, specify "".

If you do want Elastic Transcoder to create thumbnails, specify the information that you want to include in the file name for each thumbnail. You can specify the following values in any sequence:

• CopyC#

  {count}

  (Required): If you want to create thumbnails, you must include
  CopyC#

  {count}

  in the
  CopyC#

  ThumbnailPattern

  object. Wherever you specify
  CopyC#

  {count}

  , Elastic Transcoder adds a five-digit sequence number (beginning with 00001) to thumbnail file names. The number indicates where a given thumbnail appears in the sequence of thumbnails for a transcoded file.
  If you specify a literal value and/or
  CopyC#

  {resolution}

  but you omit
  CopyC#

  {count}

  , Elastic Transcoder returns a validation error and does not create the job.

• Literal values (Optional): You can specify literal values anywhere in the

  CopyC#

  ThumbnailPattern

  object. For example, you can include them as a file name prefix or as a delimiter between
  CopyC#

  {resolution}

  and
  CopyC#

  {count}

  .

• CopyC#

  {resolution}

  (Optional): If you want Elastic Transcoder to include the resolution in the file name, include
  CopyC#

  {resolution}

  in the
  CopyC#

  ThumbnailPattern

  object.

When creating thumbnails, Elastic Transcoder automatically saves the files in the format (.jpg or .png) that appears in the preset that you specified in the

CopyC#

PresetID

CopyC#

CreateJobOutput

Information about the watermarks that you want Elastic Transcoder to add to the video during transcoding. You can specify up to four watermarks for each output. Settings for each watermark must be defined in the preset for the current output.