[FFmpeg-cvslog] lavr: x86: optimized 2-channel s16 to s16p conversion
Justin Ruggles
git at videolan.org
Fri Aug 24 14:44:30 CEST 2012
ffmpeg | branch: master | Justin Ruggles <justin.ruggles at gmail.com> | Wed May 2 17:53:15 2012 -0400| [8eeffa8adaba69854f388c9cc19a6374409764a9] | committer: Justin Ruggles
lavr: x86: optimized 2-channel s16 to s16p conversion
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=8eeffa8adaba69854f388c9cc19a6374409764a9
---
libavresample/x86/audio_convert.asm | 50 ++++++++++++++++++++++++++++++++
libavresample/x86/audio_convert_init.c | 15 ++++++++++
libavresample/x86/util.asm | 6 ++++
3 files changed, 71 insertions(+)
diff --git a/libavresample/x86/audio_convert.asm b/libavresample/x86/audio_convert.asm
index 48508af..567acf6 100644
--- a/libavresample/x86/audio_convert.asm
+++ b/libavresample/x86/audio_convert.asm
@@ -33,6 +33,7 @@ pf_s16_scale: times 4 dd 0x47000000
pb_shuf_unpack_even: db -1, -1, 0, 1, -1, -1, 2, 3, -1, -1, 8, 9, -1, -1, 10, 11
pb_shuf_unpack_odd: db -1, -1, 4, 5, -1, -1, 6, 7, -1, -1, 12, 13, -1, -1, 14, 15
pb_interleave_words: SHUFFLE_MASK_W 0, 4, 1, 5, 2, 6, 3, 7
+pb_deinterleave_words: SHUFFLE_MASK_W 0, 2, 4, 6, 1, 3, 5, 7
SECTION_TEXT
@@ -812,3 +813,52 @@ CONV_FLTP_TO_FLT_6CH
INIT_XMM avx
CONV_FLTP_TO_FLT_6CH
%endif
+
+;------------------------------------------------------------------------------
+; void ff_conv_s16_to_s16p_2ch(int16_t *const *dst, int16_t *src, int len,
+; int channels);
+;------------------------------------------------------------------------------
+
+%macro CONV_S16_TO_S16P_2CH 0
+cglobal conv_s16_to_s16p_2ch, 3,4,4, dst0, src, len, dst1
+ lea lenq, [2*lend]
+ mov dst1q, [dst0q+gprsize]
+ mov dst0q, [dst0q ]
+ lea srcq, [srcq+2*lenq]
+ add dst0q, lenq
+ add dst1q, lenq
+ neg lenq
+%if cpuflag(ssse3)
+ mova m3, [pb_deinterleave_words]
+%endif
+.loop:
+ mova m0, [srcq+2*lenq ] ; m0 = 0, 1, 2, 3, 4, 5, 6, 7
+ mova m1, [srcq+2*lenq+mmsize] ; m1 = 8, 9, 10, 11, 12, 13, 14, 15
+%if cpuflag(ssse3)
+ pshufb m0, m3 ; m0 = 0, 2, 4, 6, 1, 3, 5, 7
+ pshufb m1, m3 ; m1 = 8, 10, 12, 14, 9, 11, 13, 15
+ SBUTTERFLY2 qdq, 0, 1, 2 ; m0 = 0, 2, 4, 6, 8, 10, 12, 14
+ ; m1 = 1, 3, 5, 7, 9, 11, 13, 15
+%else ; sse2
+ pshuflw m0, m0, q3120 ; m0 = 0, 2, 1, 3, 4, 5, 6, 7
+ pshufhw m0, m0, q3120 ; m0 = 0, 2, 1, 3, 4, 6, 5, 7
+ pshuflw m1, m1, q3120 ; m1 = 8, 10, 9, 11, 12, 13, 14, 15
+ pshufhw m1, m1, q3120 ; m1 = 8, 10, 9, 11, 12, 14, 13, 15
+ DEINT2_PS 0, 1, 2 ; m0 = 0, 2, 4, 6, 8, 10, 12, 14
+ ; m1 = 1, 3, 5, 7, 9, 11, 13, 15
+%endif
+ mova [dst0q+lenq], m0
+ mova [dst1q+lenq], m1
+ add lenq, mmsize
+ jl .loop
+ REP_RET
+%endmacro
+
+INIT_XMM sse2
+CONV_S16_TO_S16P_2CH
+INIT_XMM ssse3
+CONV_S16_TO_S16P_2CH
+%if HAVE_AVX
+INIT_XMM avx
+CONV_S16_TO_S16P_2CH
+%endif
diff --git a/libavresample/x86/audio_convert_init.c b/libavresample/x86/audio_convert_init.c
index 6e78338..79d7f4d 100644
--- a/libavresample/x86/audio_convert_init.c
+++ b/libavresample/x86/audio_convert_init.c
@@ -90,6 +90,15 @@ extern void ff_conv_fltp_to_flt_6ch_sse4(float *dst, float *const *src, int len,
extern void ff_conv_fltp_to_flt_6ch_avx (float *dst, float *const *src, int len,
int channels);
+/* deinterleave conversions */
+
+extern void ff_conv_s16_to_s16p_2ch_sse2(int16_t *const *dst, int16_t *src,
+ int len, int channels);
+extern void ff_conv_s16_to_s16p_2ch_ssse3(int16_t *const *dst, int16_t *src,
+ int len, int channels);
+extern void ff_conv_s16_to_s16p_2ch_avx (int16_t *const *dst, int16_t *src,
+ int len, int channels);
+
av_cold void ff_audio_convert_init_x86(AudioConvert *ac)
{
#if HAVE_YASM
@@ -137,12 +146,16 @@ av_cold void ff_audio_convert_init_x86(AudioConvert *ac)
6, 16, 4, "SSE2", ff_conv_s16p_to_flt_6ch_sse2);
ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLTP,
2, 16, 4, "SSE2", ff_conv_fltp_to_s16_2ch_sse2);
+ ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16P, AV_SAMPLE_FMT_S16,
+ 2, 16, 8, "SSE2", ff_conv_s16_to_s16p_2ch_sse2);
}
if (mm_flags & AV_CPU_FLAG_SSSE3 && HAVE_SSE) {
ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16P,
6, 16, 4, "SSSE3", ff_conv_s16p_to_flt_6ch_ssse3);
ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLTP,
2, 16, 4, "SSSE3", ff_conv_fltp_to_s16_2ch_ssse3);
+ ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16P, AV_SAMPLE_FMT_S16,
+ 2, 16, 8, "SSSE3", ff_conv_s16_to_s16p_2ch_ssse3);
}
if (mm_flags & AV_CPU_FLAG_SSE4 && HAVE_SSE) {
ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16,
@@ -167,6 +180,8 @@ av_cold void ff_audio_convert_init_x86(AudioConvert *ac)
6, 16, 4, "AVX", ff_conv_fltp_to_s16_6ch_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);
+ ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16P, AV_SAMPLE_FMT_S16,
+ 2, 16, 8, "AVX", ff_conv_s16_to_s16p_2ch_avx);
}
#endif
}
diff --git a/libavresample/x86/util.asm b/libavresample/x86/util.asm
index ca7fde5..0ce9531 100644
--- a/libavresample/x86/util.asm
+++ b/libavresample/x86/util.asm
@@ -33,3 +33,9 @@
psrad m%1, 16
%endif
%endmacro
+
+%macro DEINT2_PS 3 ; src0/even dst, src1/odd dst, temp
+ shufps m%3, m%1, m%2, q3131
+ shufps m%1, m%2, q2020
+ SWAP %2,%3
+%endmacro
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