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⇱ FFmpeg Lands Experimental xHE-AAC MPS212 Decoding Support - Phoronix


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FFmpeg Lands Experimental xHE-AAC MPS212 Decoding Support

Written by Michael Larabel in Multimedia on 23 February 2026 at 05:19 AM EST. 5 Comments
FFmpeg developer Lynne is most known recently for all the Vulkan Video work to this open-source multimedia library while merged today to FFmpeg is another great contribution outside the scope of that: xHE-AAC MPS212 audio decoding support.

Since FFmpeg 7.1 there was already an xHE-AAC decoder while now there is xHE-AAC MPS212 decoding support for MPEG-H surround sound audio with 2-1-2 processing mode for upmixing.

In response to a ticket requesting support for it in handling various Internet radio stations, Lynne responded at the time:
"Not really a priority right now.

The MPEG-H spec is a different dimension of cursed."

Now though that "different dimension of cursed" is implemented within FFmpeg Git. The MPS212 extension within the AAC USAC decoder is implemented in FFmpeg as of today albeit in experimental form.

👁 xHE-AAC Mps212 decoding support


This commit lays it out for those interested in the support.

Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via MichaelLarabel.com.