mirror of https://git.ffmpeg.org/ffmpeg.git
lavr: Add x86-optimized functions for s32 to s16 conversion
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@ -83,6 +83,44 @@ CONV_S16_TO_FLT
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INIT_XMM sse4
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CONV_S16_TO_FLT
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;------------------------------------------------------------------------------
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; void ff_conv_s32_to_s16(int16_t *dst, const int32_t *src, int len);
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;------------------------------------------------------------------------------
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%macro CONV_S32_TO_S16 0
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cglobal conv_s32_to_s16, 3,3,4, dst, src, len
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lea lenq, [2*lend]
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lea srcq, [srcq+2*lenq]
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add dstq, lenq
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neg lenq
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.loop:
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mova m0, [srcq+2*lenq ]
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mova m1, [srcq+2*lenq+ mmsize]
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mova m2, [srcq+2*lenq+2*mmsize]
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mova m3, [srcq+2*lenq+3*mmsize]
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psrad m0, 16
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psrad m1, 16
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psrad m2, 16
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psrad m3, 16
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packssdw m0, m1
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packssdw m2, m3
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mova [dstq+lenq ], m0
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mova [dstq+lenq+mmsize], m2
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add lenq, mmsize*2
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jl .loop
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%if mmsize == 8
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emms
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RET
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%else
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REP_RET
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%endif
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%endmacro
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INIT_MMX mmx
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CONV_S32_TO_S16
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INIT_XMM sse2
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CONV_S32_TO_S16
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;-----------------------------------------------------------------------------
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; void ff_conv_fltp_to_flt_6ch(float *dst, float *const *src, int len,
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; int channels);
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@ -27,6 +27,9 @@ extern void ff_conv_s16_to_s32_sse2(int16_t *dst, const int32_t *src, int len);
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extern void ff_conv_s16_to_flt_sse2(float *dst, const int16_t *src, int len);
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extern void ff_conv_s16_to_flt_sse4(float *dst, const int16_t *src, int len);
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extern void ff_conv_s32_to_s16_mmx (int16_t *dst, const int32_t *src, int len);
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extern void ff_conv_s32_to_s16_sse2(int16_t *dst, const int32_t *src, int len);
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extern void ff_conv_fltp_to_flt_6ch_mmx (float *dst, float *const *src, int len);
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extern void ff_conv_fltp_to_flt_6ch_sse4(float *dst, float *const *src, int len);
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extern void ff_conv_fltp_to_flt_6ch_avx (float *dst, float *const *src, int len);
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@ -37,6 +40,8 @@ av_cold void ff_audio_convert_init_x86(AudioConvert *ac)
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int mm_flags = av_get_cpu_flags();
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if (mm_flags & AV_CPU_FLAG_MMX && HAVE_MMX) {
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ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S32,
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0, 1, 8, "MMX", ff_conv_s32_to_s16_mmx);
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ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_FLTP,
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6, 1, 4, "MMX", ff_conv_fltp_to_flt_6ch_mmx);
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}
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@ -49,6 +54,10 @@ av_cold void ff_audio_convert_init_x86(AudioConvert *ac)
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6, 16, 4, "AVX", ff_conv_fltp_to_flt_6ch_avx);
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}
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if (mm_flags & AV_CPU_FLAG_SSE2 && HAVE_SSE) {
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if (!(mm_flags & AV_CPU_FLAG_SSE2SLOW)) {
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ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S32,
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0, 16, 16, "SSE2", ff_conv_s32_to_s16_sse2);
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}
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ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S16,
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0, 16, 8, "SSE2", ff_conv_s16_to_s32_sse2);
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ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16,
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