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swr: int32_to_int16_mmx/sse 

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-04-29 14:10:34 +02:00
parent 755667eebc
commit 65722e7fc5
2 changed files with 36 additions and 1 deletions
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31
libswresample/x86/audio_convert.asm
View File

@ -194,14 +194,45 @@ float_to_int16_u_int %+ SUFFIX
REP_RET
%endmacro
%macro INT32_TO_INT16 1
cglobal int32_to_int16_%1, 3, 3, 2, dst, src, len
mov srcq, [srcq]
mov dstq, [dstq]
%ifidn %1, a
test dstq, mmsize-1
jne int32_to_int16_u_int %+ SUFFIX
test srcq, mmsize-1
jne int32_to_int16_u_int %+ SUFFIX
%else
int32_to_int16_u_int %+ SUFFIX
%endif
lea srcq, [srcq + 2*lenq]
add dstq, lenq
neg lenq
.next:
mov%1 m0, [ srcq+2*lenq]
mov%1 m1, [mmsize + srcq+2*lenq]
psrad m0, 16
psrad m1, 16
packssdw m0, m1
mov%1 [ dstq+lenq], m0
add lenq, mmsize
jl .next
REP_RET
%endmacro
INIT_MMX mmx
INT16_TO_INT32 u
INT16_TO_INT32 a
INT32_TO_INT16 u
INT32_TO_INT16 a
INIT_XMM sse
INT16_TO_INT32 u
INT16_TO_INT32 a
INT32_TO_INT16 u
INT32_TO_INT16 a
INIT_XMM sse2
INT32_TO_FLOAT u

6
libswresample/x86/swresample_x86.c
View File

@ -22,7 +22,9 @@
#include "libswresample/audioconvert.h"
#define MULTI_CAPS_FUNC_DECL(cap) \
void ff_int16_to_int32_a_ ## cap(uint8_t **dst, const uint8_t **src, int len);
void ff_int16_to_int32_a_ ## cap(uint8_t **dst, const uint8_t **src, int len);\
void ff_int32_to_int16_a_ ## cap(uint8_t **dst, const uint8_t **src, int len);\
MULTI_CAPS_FUNC_DECL(mmx)
MULTI_CAPS_FUNC_DECL(sse)
@ -45,6 +47,8 @@ void swri_audio_convert_init_x86(struct AudioConvert *ac,
if (mm_flags & flag) {\
if( out_fmt == AV_SAMPLE_FMT_S32 && in_fmt == AV_SAMPLE_FMT_S16 || out_fmt == AV_SAMPLE_FMT_S32P && in_fmt == AV_SAMPLE_FMT_S16P)\
ac->simd_f = ff_int16_to_int32_a_ ## cap;\
if( out_fmt == AV_SAMPLE_FMT_S16 && in_fmt == AV_SAMPLE_FMT_S32 || out_fmt == AV_SAMPLE_FMT_S16P && in_fmt == AV_SAMPLE_FMT_S32P)\
ac->simd_f = ff_int32_to_int16_a_ ## cap;\
}
MULTI_CAPS_FUNC(AV_CPU_FLAG_MMX, mmx)