It's on the way...from Justin Ruggles, the man behind aften, flake and many more.
For the moment, it's only available as patches coz it needs reviews first.
Quote:
This patch set adds basic support for E-AC-3 encoding. The quality is pretty much still the same as normal AC-3, but this is the starting point for adding more E-AC-3 features. It does have the advantage of supporting a wider variety and range of bit rates rather than just the 19 supported by AC-3. For example, 48kHz content can go up to 1024kbps, and will eventually be able to go even higher.
This is part of my project sponsored by the Foundation for Free Multimedia Technology. Future improvements will include:
- E-AC-3 mixing and production metadata support
- high bitrate support using fewer blocks per frame
- AHT encoding (better quality via better quantization)
- Spectral Extension support
- optional: Enhanced Coupling
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