As of 2012 , the ffmpeg and libav projects have open source WMA Lossless decoders based on reverse engineering of the official decoder .
Similar to WMA Pro , the WMA Lossless decoder can perform downmixing when capable audio hardware is not present .
As of 2012 , the ffmpeg and libav projects have open WMA Lossless WMA Lossless decoders based on reverse engineering of the official decoder .
Similar to WMA Pro , the WMA Lossless decoder can perform downmixing when capable audio hardware is not present .