Converting the frame rate of your video

After you know how you want to specify the relevant settings, use one of the following procedures to set up your job. For conceptual information and guidance about choosing the right values for these settings, see Settings for frame rate conversion.

Console

To set up your transcoding job with frame rate conversion using the MediaConvert console:

1. Determine the values that you want to set for frame rate conversion. For more information, see Settings for frame rate conversion.

2. Set up your job inputs and outputs as described in Tutorial: Configuring job settings.

3. On the Create job page, in the Job pane on the left, choose the output that you want to use frame rate conversion with.

   Tip

   To find a specific encoding setting on the MediaConvert console, use your browser's search function.

4. In the Encoding settings section, for Frame rate, choose the frame rate that you want for your output. If the frame rate that you want isn't listed, choose Custom. Then specify your frame rate as a fraction in the fields to the right of Frame rate.

5. For Framerate conversion algorithm, choose the algorithm most suited to your content.

   Framerate conversion algorithm isn't available on the MediaConvert console until you choose your output frame rate.

6. Optional. If your output is 25 fps and you want to use Slow PAL, enable it.

7. Optional. If you're converting from 23.976 fps to 29.97 fps and you want to do a telecine conversion, set Telecine to Hard or Soft.

   Telecine isn't available on the MediaConvert console until you set your output frame rate to 29.97.

API, SDK, or CLI

If you use the API, CLI, or an SDK, specify the relevant settings in your JSON job specification and then submit it programmatically with your job. For more information about submitting your job programmatically, see one of the introductory topics of the AWS Elemental MediaConvert API Reference:

• Getting started with AWS Elemental MediaConvert using the AWS SDKs or the AWS CLI

• Getting started with AWS Elemental MediaConvert using the API

To set up your transcoding job with frame rate conversion using the API, SDK or AWS Command Line Interface (CLI):

1. Determine the values you want to set for frame rate conversion. For more information, see Settings for frame rate conversion.

2. Use the MediaConvert console to generate your JSON job specification. We recommend this approach, because the console functions as an interactive validator against the MediaConvert job schema. Follow these steps to generate your JSON job specification using the console:

   1. Follow the previous procedure for the console.

   2. In the Job pane on the left, under Job settings, choose Show job JSON.

Find additional information, including where each setting belongs in the job settings structure, in the AWS Elemental MediaConvert API Reference. Links in this list go to information about the setting in that document:

• Frame rate control (framerateControl)

  Use the frame rate control setting to specify whether MediaConvert uses the frame rate of your input sources or the frame rate that you specify with the framerateNumerator and framerateDenominator settings.

  Note

  The default behavior for this setting is to follow source. Therefore, if you keep this setting out of your JSON job specification, MediaConvert ignores any values you provide for framerateNumerator and framerateDenominator.

  • AV1: framerateControl

  • AVC (H.264): framerateControl

  • HEVC (H.265): framerateControl

  • MPEG-2: framerateControl

  • Apple ProRes: framerateControl

  • VP8: framerateControl

  • VP9: framerateControl

• Frame rate (framerateNumerator and framerateDenominator)

  In the MediaConvert job settings schema, frame rate is represented as a fraction, to retain precision with irrational numbers. Therefore, specify your frame rate value as framerateNumerator divided by framerateDenominator. For values for common frame rates, see the table following this list of settings.

  Links to framerateNumerator

  • AV1: framerateNumerator

  • AVC (H.264): framerateNumerator

  • HEVC (H.265): framerateNumerator

  • MPEG-2: framerateNumerator

  • Apple ProRes: framerateNumerator

  • VP8: framerateNumerator

  • VP9: framerateNumerator

  Links to framerateDenominator

  • AV1: framerateDenominator

  • AVC (H.264): framerateDenominator

  • HEVC (H.265): framerateDenominator

  • MPEG-2: framerateDenominator

  • Apple ProRes: framerateDenominator

  • VP8: framerateDenominator

  • VP9: framerateDenominator

• Frame rate conversion algorithm (framerateConversionAlgorithm)

  • AV1: framerateConversionAlgorithm

  • AVC (H.264): framerateConversionAlgorithm

  • HEVC (H.265): framerateConversionAlgorithm

  • MPEG-2: framerateConversionAlgorithm

  • Apple ProRes: framerateConversionAlgorithm

  • VP8: framerateConversionAlgorithm

  • VP9: framerateConversionAlgorithm

• Slow PAL (slowPal)

  • AVC (H.264): slowPal

  • HEVC (H.265): slowPal

  • MPEG-2: slowPal

  • Apple ProRes: slowPal

• Telecine (telecine)

  • AVC (H.264): telecine

  • HEVC (H.265): telecine

  • MPEG-2: telecine

  • Apple ProRes: telecine

  • Scan type (InputScanType)

Common frame rate ratios

Frame rate common name	Value for framerateNumerator	Value for framerateDenominator
23.976	24,000	1,001
29.97	30,000	1,001
59.94	60,000	1,001