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path: root/libavcodec/arm/dcadsp_init_arm.c
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* dca: remove unused decode_hf function and quant_d tablesAlexandra Hájková2015-12-24
| | | | | They were superseded with their integer equivalents. Rename integer decode_hf to decode_hf.
* arm: add a cpu flag for the VFPv2 vector modeJanne Grunau2015-12-14
| | | | | | | | | | | | | | The vector mode was deprecated in ARMv7-A/VFPv3 and various cpu implementations do not support it in hardware. Vector mode code will depending the OS either be emulated in software or result in an illegal instruction on cpus which does not support it. This was not really problem in practice since NEON implementations of the same functions are preferred. It will however become a problem for checkasm which tests every cpu flag separately. Since this is a cpu feature newer cpu do not support anymore the behaviour of this flag differs from the other flags. It can be only activated by runtime cpu feature selection.
* arm: dcadsp: implement decode_hf as external NEON asmJanne Grunau2014-02-28
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* dcadec: remove scaling in lfe_interpolation_firChristophe Gisquet2014-02-28
| | | | | | | The scaling factor is constant so it is faster to scale the FIR coefficients in the tables during compilation. Signed-off-by: Janne Grunau <janne-libav@jannau.net>
* dcadsp: split lfe_dir casesChristophe Gisquet2014-02-07
| | | | | | | | | The x86 runs short on registers because numerous elements are not static. In addition, splitting them allows more optimized code, at least for x86. Arm asm changes by Janne Grunau. Signed-off-by: Janne Grunau <janne-libav@jannau.net>
* arm: dcadsp: Move synth filter initialization to dcadsp fileDiego Biurrun2013-08-29
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* arm: Add VFP-accelerated version of qmf_32_subbandsBen Avison2013-07-22
| | | | | | | | | Before After Mean StdDev Mean StdDev Change This function 1323.0 98.0 746.2 60.6 +77.3% Overall 15400.0 336.4 14147.5 288.4 +8.9% Signed-off-by: Martin Storsjö <martin@martin.st>
* arm: Add VFP-accelerated version of dca_lfe_firMartin Storsjö2013-07-22
| | | | | | | | | Before After Mean StdDev Mean StdDev Change This function 868.2 33.5 436.0 27.0 +99.1% Overall 15973.0 223.2 15577.5 83.2 +2.5% Signed-off-by: Martin Storsjö <martin@martin.st>
* ARM: allow runtime masking of CPU featuresMans Rullgard2012-04-22
| | | | | | | This allows masking CPU features with the -cpuflags avconv option which is useful for testing different optimisations without rebuilding. Signed-off-by: Mans Rullgard <mans@mansr.com>
* cosmetics: Consistently place static, inline and av_cold attributes/keywords.Diego Biurrun2012-04-04
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* Replace FFmpeg with Libav in licence headersMans Rullgard2011-03-19
| | | | Signed-off-by: Mans Rullgard <mans@mansr.com>
* Remove unneeded add bias from 3 functions.Justin Ruggles2011-01-31
| | | | | | | | DSPContext.vector_fmul_window() DCADSPContext.lfe_fir() SynthFilterContext.synth_filter_float() Signed-off-by: Mans Rullgard <mans@mansr.com>
* DCA: ARM/NEON optimised lfe_firMåns Rullgård2010-04-12
Originally committed as revision 22863 to svn://svn.ffmpeg.org/ffmpeg/trunk
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