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Revision 932963b8

ID932963b8e2e96b3d8c7506d9cf093b54f89d1e78
Parent 082a0a33
Child 388c7955

Added by Alex Converse almost 11 years ago

Rewrite the SBR decoder QMF analysis filter on top of the IMDCT instead of the RDFT.

This is based on a procedure to implement the filterbank on the DCT-IV described in
Hsu, H.W. et al. "A Complex Quadrature Mirror Filterbanks for MPEG-4 HE-AAC"
http://sites.google.com/site/wenchiehlee1020/Papers/ComplexFB_AES_121paper144.pdf

Originally committed as revision 23516 to svn://svn.ffmpeg.org/ffmpeg/trunk

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