On 2015-12-10 15:54:10 +0200, Martin Storsjö wrote: > On Wed, 9 Dec 2015, Janne Grunau wrote: > > >~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 > >--- > >libavcodec/aarch64/asm-offsets.h | 3 + > >libavcodec/synth_filter.h | 1 + > >libavcodec/aarch64/dcadsp_init.c | 16 +++++ > >libavcodec/synth_filter.c | 8 ++- > >libavcodec/aarch64/synth_filter_neon.S | 119 > >+++++++++++++++++++++++++++++++++ > >libavcodec/aarch64/Makefile | 3 +- > >6 files changed, 147 insertions(+), 3 deletions(-) > >create mode 100644 libavcodec/aarch64/synth_filter_neon.S > > > >diff --git a/libavcodec/aarch64/asm-offsets.h > >b/libavcodec/aarch64/asm-offsets.h > >index 45b5c40..9cc1a0e 100644 > >--- a/libavcodec/aarch64/asm-offsets.h > >+++ b/libavcodec/aarch64/asm-offsets.h > >@@ -27,4 +27,7 @@ > >#define CELT_TMP 0x10 > >#define CELT_TWIDDLE (CELT_TMP + 0x8) // loaded as pair > > > >+/* FFTContex */ > >+#define IMDCT_HALF 0x48 > >+ > > typo > > Should the value be aligned with the ones above?
both changed locally Janne _______________________________________________ libav-devel mailing list [email protected] https://lists.libav.org/mailman/listinfo/libav-devel
