| Commit message (Collapse) | Author | Age |
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~25% faster dts decoding overall. The checkasm CPU cycles numbers are
not that useful since synth_filter_float() calls FFTContext.imdct_half().
cortex-a57 cortex-a53
synth_filter_float_c: 1866.2 3490.9
synth_filter_float_neon: 915.0 1531.5
With fftc.imdct_half forced to imdct_half_neon:
cortex-a57 cortex-a53
synth_filter_float_c: 1718.4 3025.3
synth_filter_float_neon: 926.2 1530.1
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Timings for Arrandale:
C SSE
win32: 2108 334
win64: 1152 322
Factorizing the inner loop with a call/jmp is a >15 cycles cost, even with
the jmp destination being aligned.
Unrolling for ARCH_X86_64 is a 20 cycles gain.
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
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Signed-off-by: Mans Rullgard <mans@mansr.com>
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DSPContext.vector_fmul_window()
DCADSPContext.lfe_fir()
SynthFilterContext.synth_filter_float()
Signed-off-by: Mans Rullgard <mans@mansr.com>
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2.7x faster DCA decoding on Cortex-A8
Originally committed as revision 22828 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 22827 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 22337 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 20415 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 20413 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 20396 to svn://svn.ffmpeg.org/ffmpeg/trunk
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