summaryrefslogtreecommitdiff
path: root/libavcodec/synth_filter.c
Commit message (Collapse)AuthorAge
* all: Replace if (ARCH_FOO) checks by #if ARCH_FOOAndreas Rheinhardt2022-06-15
| | | | | | | | | | | | | | | | | | This is more spec-compliant because it does not rely on dead-code elimination by the compiler. Especially MSVC has problems with this, as can be seen in https://ffmpeg.org/pipermail/ffmpeg-devel/2022-May/296373.html or https://ffmpeg.org/pipermail/ffmpeg-devel/2022-May/297022.html This commit does not eliminate every instance where we rely on dead code elimination: It only tackles branching to the initialization of arch-specific dsp code, not e.g. all uses of CONFIG_ and HAVE_ checks. But maybe it is already enough to compile FFmpeg with MSVC with whole-programm-optimizations enabled (if one does not disable too many components). Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* avcodec/synth_filter: add more filtersfoo862016-01-31
|
* avcodec/synth_filter: fix whitespacefoo862016-01-31
|
* Merge commit '705f5e5e155f6f280a360af220fc5b30cfcee702'Hendrik Leppkes2016-01-02
|\ | | | | | | | | | | | | * commit '705f5e5e155f6f280a360af220fc5b30cfcee702': arm64: port synth_filter_float_neon from arm Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
| * arm64: port synth_filter_float_neon from armJanne Grunau2015-12-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | ~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
| * x86: synth filter float: implement SSE2 versionChristophe Gisquet2014-02-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* | x86: synth filter float: implement SSE2 versionChristophe Gisquet2014-02-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: Michael Niedermayer <michaelni@gmx.at>
* | Merge remote-tracking branch 'newdev/master'Michael Niedermayer2011-03-21
|\| | | | | | | Merged-by: Michael Niedermayer <michaelni@gmx.at>
| * fft: remove inline wrappers for function pointersMans Rullgard2011-03-19
| | | | | | | | | | | | | | This removes the rather pointless wrappers (one not even inline) for calling the fft_calc and related function pointers. Signed-off-by: Mans Rullgard <mans@mansr.com>
| * 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>
* | Remove unneeded add bias from 3 functions.Justin Ruggles2011-02-02
|/ | | | | | | | | DSPContext.vector_fmul_window() DCADSPContext.lfe_fir() SynthFilterContext.synth_filter_float() Signed-off-by: Mans Rullgard <mans@mansr.com> (cherry picked from commit 80ba1ddb58b5923b9f36a6acd542affc4ca722eb)
* Make synth_filter a function pointerMåns Rullgård2010-04-10
| | | | Originally committed as revision 22827 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Move FFT parts from dsputil.h to fft.hMåns Rullgård2010-03-06
| | | | Originally committed as revision 22235 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Change whitespace placement a little to improve readabiliy slightly.Michael Niedermayer2009-10-29
| | | | | | | | Thats not an attempt to emulate indent -kr behavior down to the finest fineprint, first it would not be worth the work, second it would be less readable, third it would not be K&R but indent -kr then. Originally committed as revision 20416 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Vertically align function arguments.Michael Niedermayer2009-10-29
| | | | Originally committed as revision 20413 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Split synth filter out of dca.c.Michael Niedermayer2009-10-28
Originally committed as revision 20396 to svn://svn.ffmpeg.org/ffmpeg/trunk
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-29 10:12:43 +0000