Commit Graph

8 Commits

Author SHA1 Message Date
Ben Avison
5a272190a0 armv6: Accelerate butterflies_float
I benchmarked the result by measuring the number of gperftools samples that
hit anywhere in the AAC decoder (starting from aac_decode_frame()) or
specifically in butterflies_float_c() / ff_butterflies_float_vfp() for the
same sample AAC stream:

                   Before          After
                   Mean   StdDev   Mean   StdDev  Confidence  Change
Audio decode       1542.8 43.7     1470.5 41.5    100.0%      +4.9%
butterflies_float  130.0  11.9     70.2   12.1    100.0%      +85.2%

Signed-off-by: Martin Storsjö <martin@martin.st>
2014-07-18 01:34:38 +03:00
Ben Avison
5edad2c4a1 armv6: Accelerate vector_fmul_window
I benchmarked the result by measuring the number of gperftools samples that
hit anywhere in the AAC decoder (starting from aac_decode_frame()) or
specifically in vector_fmul_window_c() / ff_vector_fmul_window_vfp() for the
same sample AAC stream:

                    Before          After
                    Mean   StdDev   Mean   StdDev  Confidence  Change
Audio decode        1598.2 47.4     1529.2 25.4    100.0%      +4.5%
vector_fmul_window  244.0  22.1     188.9  22.3    100.0%      +29.2%

Signed-off-by: Martin Storsjö <martin@martin.st>
2014-07-18 01:34:31 +03:00
Diego Biurrun
7ffda66fd5 arm: float_dsp: Propagate cpu_flags to vfp initialization function 2013-08-29 11:24:14 +02:00
Diego Biurrun
1fda184a85 avutil: Add av_cold attributes to init functions missing them 2013-05-04 22:48:05 +02:00
Ronald S. Bultje
42d3246948 floatdsp: move vector_fmul_reverse from dsputil to avfloatdsp.
Now, nellymoserenc and aacenc no longer depends on dsputil. Independent
of this patch, wmaprodec also does not depend on dsputil, so I removed
it from there also.
2013-01-22 11:55:42 -08:00
Diego Biurrun
a5a93fa8f5 cosmetics: do not use full path for local headers 2012-06-22 10:49:40 +02:00
Mans Rullgard
a839d6abf8 ARM: fix float_dsp breakage from d5a7229
Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-06-08 19:45:37 +01:00
Justin Ruggles
d5a7229ba4 Add a float DSP framework to libavutil
Move vector_fmul() from DSPContext to AVFloatDSPContext.
2012-06-08 13:14:38 -04:00