diff options
| author | Lynne <dev@lynne.ee> | 2019-03-15 17:37:31 +0300 |
|---|---|---|
| committer | Carl Eugen Hoyos <ceffmpeg@gmail.com> | 2019-04-10 02:08:54 +0300 |
| commit | 4d2f62150dba814eeb28de0d6723f6beb3638be9 (patch) | |
| tree | db8525d9d273b177f6423a6d8629d5c659e1e798 /libavcodec/aarch64/Makefile | |
| parent | 1c50d61a5a689f8eabef37f504c6f8f33eb178ba (diff) | |
aarch64/opusdsp: implement NEON accelerated postfilter and deemphasis
153372 UNITS in postfilter_c, 65536 runs, 0 skips
73164 UNITS in postfilter_neon, 65536 runs, 0 skips -> 2.1x speedup
80591 UNITS in deemphasis_c, 131072 runs, 0 skips
43969 UNITS in deemphasis_neon, 131072 runs, 0 skips -> 1.83x speedup
Total decoder speedup: ~15% on a Raspberry Pi 3 (from 28.1x to 33.5x realtime)
Deemphasis SIMD based on the following unrolling:
const float c1 = CELT_EMPH_COEFF, c2 = c1*c1, c3 = c2*c1, c4 = c3*c1;
float state = coeff;
for (int i = 0; i < len; i += 4) {
y[0] = x[0] + c1*state;
y[1] = x[1] + c2*state + c1*x[0];
y[2] = x[2] + c3*state + c1*x[1] + c2*x[0];
y[3] = x[3] + c4*state + c1*x[2] + c2*x[1] + c3*x[0];
state = y[3];
y += 4;
x += 4;
}
Unlike the x86 version, duplication is used instead of pslldq so
the structure and tables are different.
Diffstat (limited to 'libavcodec/aarch64/Makefile')
| -rw-r--r-- | libavcodec/aarch64/Makefile | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libavcodec/aarch64/Makefile b/libavcodec/aarch64/Makefile index 8bc8bc528c..00f93bf59f 100644 --- a/libavcodec/aarch64/Makefile +++ b/libavcodec/aarch64/Makefile @@ -15,6 +15,7 @@ OBJS-$(CONFIG_VP8DSP) += aarch64/vp8dsp_init_aarch64.o OBJS-$(CONFIG_AAC_DECODER) += aarch64/aacpsdsp_init_aarch64.o \ aarch64/sbrdsp_init_aarch64.o OBJS-$(CONFIG_DCA_DECODER) += aarch64/synth_filter_init.o +OBJS-$(CONFIG_OPUS_DECODER) += aarch64/opusdsp_init.o OBJS-$(CONFIG_RV40_DECODER) += aarch64/rv40dsp_init_aarch64.o OBJS-$(CONFIG_VC1DSP) += aarch64/vc1dsp_init_aarch64.o OBJS-$(CONFIG_VORBIS_DECODER) += aarch64/vorbisdsp_init.o @@ -49,6 +50,7 @@ NEON-OBJS-$(CONFIG_VP8DSP) += aarch64/vp8dsp_neon.o # decoders/encoders NEON-OBJS-$(CONFIG_AAC_DECODER) += aarch64/aacpsdsp_neon.o NEON-OBJS-$(CONFIG_DCA_DECODER) += aarch64/synth_filter_neon.o +NEON-OBJS-$(CONFIG_OPUS_DECODER) += aarch64/opusdsp_neon.o NEON-OBJS-$(CONFIG_VORBIS_DECODER) += aarch64/vorbisdsp_neon.o NEON-OBJS-$(CONFIG_VP9_DECODER) += aarch64/vp9itxfm_16bpp_neon.o \ aarch64/vp9itxfm_neon.o \ |