generic-library/ffmpeg
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

lavr: x86: optimized 2-channel s16p to s16 conversion

Browse Source
This commit is contained in:
Justin Ruggles 2012-05-02 15:32:08 -04:00
parent 7b44061f4b
commit c0e12535aa
2 changed files with 50 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

37
libavresample/x86/audio_convert.asm
View File

@ -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);

13
libavresample/x86/audio_convert_init.c
View File

@ -22,6 +22,8 @@
#include "libavutil/cpu.h"
#include "libavresample/audio_convert.h"
/* flat conversions */
extern void ff_conv_s16_to_s32_sse2(int16_t *dst, const int32_t *src, int len);
extern void ff_conv_s16_to_flt_sse2(float *dst, const int16_t *src, int len);
@ -38,6 +40,13 @@ extern void ff_conv_flt_to_s16_sse2(int16_t *dst, const float *src, int len);
extern void ff_conv_flt_to_s32_sse2(int32_t *dst, const float *src, int len);
extern void ff_conv_flt_to_s32_avx (int32_t *dst, const float *src, int len);
/* interleave conversions */
extern void ff_conv_s16p_to_s16_2ch_sse2(int16_t *dst, int16_t *const *src,
int len, int channels);
extern void ff_conv_s16p_to_s16_2ch_avx (int16_t *dst, int16_t *const *src,
int len, int channels);
extern void ff_conv_fltp_to_flt_6ch_mmx (float *dst, float *const *src, int len,
int channels);
extern void ff_conv_fltp_to_flt_6ch_sse4(float *dst, float *const *src, int len,
@ -71,6 +80,8 @@ av_cold void ff_audio_convert_init_x86(AudioConvert *ac)
0, 16, 16, "SSE2", ff_conv_flt_to_s16_sse2);
ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_FLT,
0, 16, 16, "SSE2", ff_conv_flt_to_s32_sse2);
ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S16P,
2, 16, 16, "SSE2", ff_conv_s16p_to_s16_2ch_sse2);
}
if (mm_flags & AV_CPU_FLAG_SSE4 && HAVE_SSE) {
ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16,
@ -83,6 +94,8 @@ av_cold void ff_audio_convert_init_x86(AudioConvert *ac)
0, 32, 16, "AVX", ff_conv_s32_to_flt_avx);
ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_FLT,
0, 32, 32, "AVX", ff_conv_flt_to_s32_avx);
ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S16P,
2, 16, 16, "AVX", ff_conv_s16p_to_s16_2ch_avx);
ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_FLTP,
6, 16, 4, "AVX", ff_conv_fltp_to_flt_6ch_avx);
}