[FFmpeg-devel] [PATCH] HE-AAC v1 decoder

Alex Converse alex.converse
Wed Jan 27 04:10:12 CET 2010

Greetings Sirs,

Enclosed you will find one (1) HE-AAC decoder to make glorious great
software FFmpeg.




More seriously, attached is a patch that implements SBR and integrates
it with AAC to make an HE-AAC v1 decoder. A filterbank compatible with
ff_float_to_int16_interleave_c is missing but otherwise the code is
complete. Note that the decoder spends 90+% of its time in the
filterbank and will be extremely slow on any system that does not have
a asm version of  scalarproduct_float().
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