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author | Justin Ruggles <justin.ruggles@gmail.com> | 2012-05-02 23:32:08 +0400 |
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committer | Justin Ruggles <justin.ruggles@gmail.com> | 2012-08-24 04:10:56 +0400 |
commit | c0e12535aa10213f9cb4dce2ea1b63acbf679bb5 (patch) | |
tree | 3f1dfb1990e5d7d548a80e67679af47efe9dcfeb /libavresample/x86/audio_convert.asm | |
parent | 7b44061f4be1075eefbc2eec649f38dd0dbfcc82 (diff) |
lavr: x86: optimized 2-channel s16p to s16 conversion
Diffstat (limited to 'libavresample/x86/audio_convert.asm')
-rw-r--r-- | libavresample/x86/audio_convert.asm | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/libavresample/x86/audio_convert.asm b/libavresample/x86/audio_convert.asm index 244c4d1b08..4a92952c3d 100644 --- a/libavresample/x86/audio_convert.asm +++ b/libavresample/x86/audio_convert.asm @@ -223,6 +223,43 @@ INIT_YMM avx CONV_FLT_TO_S32 %endif +;------------------------------------------------------------------------------ +; void ff_conv_s16p_to_s16_2ch(int16_t *dst, int16_t *const *src, int len, +; int channels); +;------------------------------------------------------------------------------ + +%macro CONV_S16P_TO_S16_2CH 0 +cglobal conv_s16p_to_s16_2ch, 3,4,5, dst, src0, len, src1 + mov src1q, [src0q+gprsize] + mov src0q, [src0q ] + lea lenq, [2*lend] + add src0q, lenq + add src1q, lenq + lea dstq, [dstq+2*lenq] + neg lenq +.loop + mova m0, [src0q+lenq ] + mova m1, [src1q+lenq ] + mova m2, [src0q+lenq+mmsize] + mova m3, [src1q+lenq+mmsize] + SBUTTERFLY2 wd, 0, 1, 4 + SBUTTERFLY2 wd, 2, 3, 4 + mova [dstq+2*lenq+0*mmsize], m0 + mova [dstq+2*lenq+1*mmsize], m1 + mova [dstq+2*lenq+2*mmsize], m2 + mova [dstq+2*lenq+3*mmsize], m3 + add lenq, 2*mmsize + jl .loop + REP_RET +%endmacro + +INIT_XMM sse2 +CONV_S16P_TO_S16_2CH +%if HAVE_AVX +INIT_XMM avx +CONV_S16P_TO_S16_2CH +%endif + ;----------------------------------------------------------------------------- ; void ff_conv_fltp_to_flt_6ch(float *dst, float *const *src, int len, ; int channels); |