diff options
Diffstat (limited to 'libavresample/x86/audio_convert.asm')
| -rw-r--r-- | libavresample/x86/audio_convert.asm | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/libavresample/x86/audio_convert.asm b/libavresample/x86/audio_convert.asm index ee05efcdb2..c3cc76fe01 100644 --- a/libavresample/x86/audio_convert.asm +++ b/libavresample/x86/audio_convert.asm @@ -383,6 +383,55 @@ INIT_XMM avx CONV_S16P_TO_S16_6CH %endif +;------------------------------------------------------------------------------ +; void ff_conv_s16p_to_flt_2ch(float *dst, int16_t *const *src, int len, +; int channels); +;------------------------------------------------------------------------------ + +%macro CONV_S16P_TO_FLT_2CH 0 +cglobal conv_s16p_to_flt_2ch, 3,4,6, dst, src0, len, src1 + lea lenq, [2*lend] + mov src1q, [src0q+gprsize] + mov src0q, [src0q ] + lea dstq, [dstq+4*lenq] + add src0q, lenq + add src1q, lenq + neg lenq + mova m5, [pf_s32_inv_scale] +.loop: + mova m2, [src0q+lenq] ; m2 = 0, 2, 4, 6, 8, 10, 12, 14 + mova m4, [src1q+lenq] ; m4 = 1, 3, 5, 7, 9, 11, 13, 15 + SBUTTERFLY2 wd, 2, 4, 3 ; m2 = 0, 1, 2, 3, 4, 5, 6, 7 + ; m4 = 8, 9, 10, 11, 12, 13, 14, 15 + pxor m3, m3 + punpcklwd m0, m3, m2 ; m0 = 0, 1, 2, 3 + punpckhwd m1, m3, m2 ; m1 = 4, 5, 6, 7 + punpcklwd m2, m3, m4 ; m2 = 8, 9, 10, 11 + punpckhwd m3, m4 ; m3 = 12, 13, 14, 15 + cvtdq2ps m0, m0 + cvtdq2ps m1, m1 + cvtdq2ps m2, m2 + cvtdq2ps m3, m3 + mulps m0, m5 + mulps m1, m5 + mulps m2, m5 + mulps m3, m5 + mova [dstq+4*lenq ], m0 + mova [dstq+4*lenq+ mmsize], m1 + mova [dstq+4*lenq+2*mmsize], m2 + mova [dstq+4*lenq+3*mmsize], m3 + add lenq, mmsize + jl .loop + REP_RET +%endmacro + +INIT_XMM sse2 +CONV_S16P_TO_FLT_2CH +%if HAVE_AVX +INIT_XMM avx +CONV_S16P_TO_FLT_2CH +%endif + ;----------------------------------------------------------------------------- ; void ff_conv_fltp_to_flt_6ch(float *dst, float *const *src, int len, ; int channels); |