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| author | Janne Grunau <janne-libav@jannau.net> | 2015-12-01 13:37:41 +0100 |
|---|---|---|
| committer | Janne Grunau <janne-libav@jannau.net> | 2015-12-14 16:45:01 +0100 |
| commit | 705f5e5e155f6f280a360af220fc5b30cfcee702 (patch) | |
| tree | 0ae61550e51a1843de9ee7fb40e3143bd361e4ad /libavcodec/aarch64/asm-offsets.h | |
| parent | c33c1fa8af2b2e82418a06901b6ad17b3d61b73e (diff) | |
| download | ffmpeg-705f5e5e155f6f280a360af220fc5b30cfcee702.tar.gz | |
arm64: port synth_filter_float_neon from arm
~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
Diffstat (limited to 'libavcodec/aarch64/asm-offsets.h')
| -rw-r--r-- | libavcodec/aarch64/asm-offsets.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavcodec/aarch64/asm-offsets.h b/libavcodec/aarch64/asm-offsets.h index 45b5c40f80..60e32ddd1d 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 +/* FFTContext */ +#define IMDCT_HALF 0x48 + #endif /* AVCODEC_AARCH64_ASM_OFFSETS_H */ |