Profile

The H.264 profile that you want to use for the output file. Elastic Transcoder supports the following profiles:

• CopyC#

  baseline

  : The profile most commonly used for videoconferencing and for mobile applications.
• CopyC#

  main

  : The profile used for standard-definition digital TV broadcasts.
• CopyC#

  high

  : The profile used for high-definition digital TV broadcasts and for Blu-ray discs.

Level (H.264 Only)

The H.264 level that you want to use for the output file. Elastic Transcoder supports the following levels:

CopyC#

1

CopyC#

1b

CopyC#

1.1

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1.2

CopyC#

1.3

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2

CopyC#

2.1

CopyC#

2.2

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3

CopyC#

3.1

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3.2

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4

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4.1

MaxReferenceFrames (H.264 Only)

Applicable only when the value of Video:Codec is H.264. The maximum number of previously decoded frames to use as a reference for decoding future frames. Valid values are integers 0 through 16, but we recommend that you not use a value greater than the following:

CopyC#

Min(Floor(Maximum decoded picture buffer in macroblocks * 256 /
            (Width in pixels *                Height in pixels)), 16)

where Width in pixels and Height in pixels represent either MaxWidth and MaxHeight, or Resolution. Maximum decoded picture buffer in macroblocks depends on the value of the

CopyC#

Level

• 1 - 396
• 1b - 396
• 1.1 - 900
• 1.2 - 2376
• 1.3 - 2376
• 2 - 2376
• 2.1 - 4752
• 2.2 - 8100
• 3 - 8100
• 3.1 - 18000
• 3.2 - 20480
• 4 - 32768
• 4.1 - 32768

MaxBitRate

The maximum number of bits per second in a video buffer; the size of the buffer is specified by

CopyC#

BufferSize

BufferSize

The maximum number of bits in any x seconds of the output video. This window is commonly 10 seconds, the standard segment duration when you're using MPEG-TS for the container type of the output video. Specify an integer greater than 0. If you specify

CopyC#

MaxBitRate

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BufferSize

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BufferSize

CopyC#

MaxBitRate