swr: add int16_to_int32_mmx/sse

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libswresample/audioconvert.c

@@ -125,6 +125,9 @@ AudioConvert *swri_audio_convert_alloc(enum AVSampleFormat out_fmt,
     ctx->ch_map   = ch_map;
     if (in_fmt == AV_SAMPLE_FMT_U8)
         memset(ctx->silence, 0x80, sizeof(ctx->silence));
+
+    if(HAVE_YASM && HAVE_MMX) swri_audio_convert_init_x86(ctx, out_fmt, in_fmt, channels);
+
     return ctx;
 }
 
@@ -136,21 +139,36 @@ void swri_audio_convert_free(AudioConvert **ctx)
 int swri_audio_convert(AudioConvert *ctx, AudioData *out, AudioData *in, int len)
 {
     int ch;
+    int off=0;
+    const int os= (out->planar ? 1 :out->ch_count) *out->bps;
 
     av_assert0(ctx->channels == out->ch_count);
 
     //FIXME optimize common cases
 
+    if(ctx->simd_f && !ctx->ch_map){
+        int planes = out->planar ? out->ch_count : 1;
+        off = len/16 * 16;
+        av_assert1(out->planar == in->planar);
+        av_assert1(off>=0);
+        if(off>0)
+            for(ch=0; ch<planes; ch++){
+                ctx->simd_f(out->ch+ch, in->ch+ch, off*os);
+            }
+        av_assert1(off<=len);
+        if(off == len)
+            return 0;
+    }
+
     for(ch=0; ch<ctx->channels; ch++){
         const int ich= ctx->ch_map ? ctx->ch_map[ch] : ch;
         const int is= ich < 0 ? 0 : (in->planar ? 1 : in->ch_count) * in->bps;
-        const int os= (out->planar ? 1 :out->ch_count) *out->bps;
         const uint8_t *pi= ich < 0 ? ctx->silence : in->ch[ich];
         uint8_t       *po= out->ch[ch];
         uint8_t *end= po + os*len;
         if(!po)
             continue;
-        ctx->conv_f(po, pi, is, os, end);
+        ctx->conv_f(po+off*os, pi+off*is, is, os, end);
     }
     return 0;
 }

libswresample/audioconvert.h

@@ -35,10 +35,12 @@
 
 
 typedef void (conv_func_type)(uint8_t *po, const uint8_t *pi, int is, int os, uint8_t *end);
+typedef void (simd_func_type)(uint8_t **dst, const uint8_t **src, int len);
 
 typedef struct AudioConvert {
     int channels;
     conv_func_type *conv_f;
+    simd_func_type *simd_f;
     const int *ch_map;
     uint8_t silence[8]; ///< silence input sample
 }AudioConvert;

libswresample/swresample_internal.h

@@ -101,4 +101,8 @@ void swri_sum2(enum AVSampleFormat format, void *dst, const void *src0, const vo
 
 void swri_get_dither(SwrContext *s, void *dst, int len, unsigned seed, enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt);
 
+void swri_audio_convert_init_x86(struct AudioConvert *ac,
+                                 enum AVSampleFormat out_fmt,
+                                 enum AVSampleFormat in_fmt,
+                                 int channels);
 #endif

libswresample/x86/Makefile

@@ -0,0 +1,2 @@
+YASM-OBJS                       += x86/swresample_x86.o\
+                                   x86/audio_convert.o\

libswresample/x86/audio_convert.asm

@@ -0,0 +1,52 @@
+;******************************************************************************
+;* Copyright (c) 2012 Michael Niedermayer
+;*
+;* This file is part of FFmpeg.
+;*
+;* FFmpeg is free software; you can redistribute it and/or
+;* modify it under the terms of the GNU Lesser General Public
+;* License as published by the Free Software Foundation; either
+;* version 2.1 of the License, or (at your option) any later version.
+;*
+;* FFmpeg is distributed in the hope that it will be useful,
+;* but WITHOUT ANY WARRANTY; without even the implied warranty of
+;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+;* Lesser General Public License for more details.
+;*
+;* You should have received a copy of the GNU Lesser General Public
+;* License along with FFmpeg; if not, write to the Free Software
+;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+;******************************************************************************
+
+%include "libavutil/x86/x86inc.asm"
+%include "libavutil/x86/x86util.asm"
+
+SECTION .text
+
+%macro INT16_TO_INT32 0
+cglobal int16_to_int32_%1, 3, 3, 0, dst, src, len
+    mov srcq, [srcq]
+    mov dstq, [dstq]
+.next
+    movu m4, [srcq]
+    pxor m0, m0
+    pxor m1, m1
+    punpcklwd m0, m4
+    punpckhwd m1, m4
+    movu [         dstq], m0
+    movu [mmsize + dstq], m1
+    add srcq, mmsize
+    add dstq, 2*mmsize
+    sub lenq, 2*mmsize
+        jg .next
+%if mmsize == 8
+    emms
+%endif
+    REP_RET
+%endmacro
+
+INIT_MMX mmx
+INT16_TO_INT32
+
+INIT_XMM sse
+INT16_TO_INT32

libswresample/x86/swresample_x86.c

@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2012 Michael Niedermayer (michaelni@gmx.at)
+ *
+ * This file is part of libswresample
+ *
+ * libswresample is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * libswresample is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with libswresample; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libswresample/swresample_internal.h"
+#include "libswresample/audioconvert.h"
+
+#define MULTI_CAPS_FUNC_DECL(cap) \
+    void ff_int16_to_int32_ ## cap(uint8_t **dst, const uint8_t **src, int len);
+MULTI_CAPS_FUNC_DECL(mmx)
+MULTI_CAPS_FUNC_DECL(sse)
+
+void swri_audio_convert_init_x86(struct AudioConvert *ac,
+                                 enum AVSampleFormat out_fmt,
+                                 enum AVSampleFormat in_fmt,
+                                 int channels){
+    int mm_flags = av_get_cpu_flags();
+
+    ac->simd_f= NULL;
+
+//FIXME add memcpy case
+
+#define MULTI_CAPS_FUNC(flag, cap) \
+    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_ ## cap;\
+    }
+
+MULTI_CAPS_FUNC(AV_CPU_FLAG_MMX, mmx)
+MULTI_CAPS_FUNC(AV_CPU_FLAG_SSE, sse)
+}