androidx / androidx/media

Add more Audio Encoding formats to PCM MP4 record

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#3,389 0 comments 0 reactions 1 assignee View on GitHub

@snow2405 is already working on this.

Since Aug 24, 2026.

editing enhancement needs triage
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Description

Use case description

At this moment (version 1.11.0) only 16 bit audio encoding is supported when recording video using the Mp4Muxer., however, professional users want increased quality and control over the audio tracks.

Proposed solution

Include ENCODING_PCM_FLOAT support to the MP4Muxer.

Alternatives considered

As far as I know, there's none. According to the codebase, anything different than 16bit encoding causes a IllegarArgumentException for RAW audio recording onto a Mp4Muxer.

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  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

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