[FFmpeg-devel] [PATCH 0/9] x86 DSP code for AAC SBR.

Christophe Gisquet christophe.gisquet at gmail.com
Thu Apr 4 21:45:44 CEST 2013

Those patches are also being reviewed by libav developpers, but more input is
welcome. Patch 9/9 is a WIP that will probably go nowhere and is therefore

Patch 8 could be controversial, but there is a lot of code already assuming
IEEE754 floats.

Christophe Gisquet (9):
  SBR DSP x86: implement SSE qmf_pre_shuffle
  SBR DSP x86: implement SSE qmf_deint_neg
  SBR DSP x86: implement SSE qmf_deint_bfly
  x264asm: fix cmp* number of arguments
  SBR DSP x86: implement SSE hf_apply_noise
  sbrdsp: unroll sbr_autocorrelate_c
  sbrdsp: unroll and use integer operations
  x86: sbrdsp: implement SSE neg_odd_64

 libavcodec/sbrdsp.c          |  58 +++++++--
 libavcodec/x86/sbrdsp.asm    | 274 +++++++++++++++++++++++++++++++++++++++++++
 libavcodec/x86/sbrdsp_init.c |  24 ++++
 libavutil/x86/x86inc.asm     |   8 +-
 4 files changed, 350 insertions(+), 14 deletions(-)


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