x86/g722dsp: add ff_g722_apply_qmf_sse2

Reviewed-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: James Almer <jamrial@gmail.com>

libavcodec/g722dsp.c

@@ -71,4 +71,6 @@ av_cold void ff_g722dsp_init(G722DSPContext *c)
 
     if (ARCH_ARM)
         ff_g722dsp_init_arm(c);
+    if (ARCH_X86)
+        ff_g722dsp_init_x86(c);
 }

libavcodec/g722dsp.h

@@ -29,5 +29,6 @@ typedef struct G722DSPContext {
 
 void ff_g722dsp_init(G722DSPContext *c);
 void ff_g722dsp_init_arm(G722DSPContext *c);
+void ff_g722dsp_init_x86(G722DSPContext *c);
 
 #endif /* AVCODEC_G722DSP_H */

libavcodec/x86/Makefile

@@ -37,6 +37,8 @@ OBJS-$(CONFIG_XMM_CLOBBER_TEST)        += x86/w64xmmtest.o
 
 # decoders/encoders
 OBJS-$(CONFIG_AAC_DECODER)             += x86/sbrdsp_init.o
+OBJS-$(CONFIG_ADPCM_G722_DECODER)      += x86/g722dsp_init.o
+OBJS-$(CONFIG_ADPCM_G722_ENCODER)      += x86/g722dsp_init.o
 OBJS-$(CONFIG_APNG_DECODER)            += x86/pngdsp_init.o
 OBJS-$(CONFIG_CAVS_DECODER)            += x86/cavsdsp.o
 OBJS-$(CONFIG_DCA_DECODER)             += x86/dcadsp_init.o
@@ -129,6 +131,8 @@ YASM-OBJS-$(CONFIG_VP3DSP)             += x86/vp3dsp.o
 
 # decoders/encoders
 YASM-OBJS-$(CONFIG_AAC_DECODER)        += x86/sbrdsp.o
+YASM-OBJS-$(CONFIG_ADPCM_G722_DECODER) += x86/g722dsp.o
+YASM-OBJS-$(CONFIG_ADPCM_G722_ENCODER) += x86/g722dsp.o
 YASM-OBJS-$(CONFIG_APNG_DECODER)       += x86/pngdsp.o
 YASM-OBJS-$(CONFIG_DCA_DECODER)        += x86/dcadsp.o
 YASM-OBJS-$(CONFIG_HEVC_DECODER)       += x86/hevc_mc.o                 \

libavcodec/x86/g722dsp.asm

@@ -0,0 +1,54 @@
+;******************************************************************************
+;* SIMD optimized DSP functions for G722 coding
+;*
+;* Copyright (c) 2014 James Almer
+;*
+;* 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/x86util.asm"
+
+SECTION_RODATA
+
+pw_qmf_coeffs:  dw   3, -210,  -11, -805,  -11,  951,  53, 3876
+pw_qmf_coeffs2: dw  12, 3876, -156,  951,   32, -805, 362, -210
+pw_qmf_coeffs3: dw 362,    0 ,  32,    0, -156,    0,  12,    0
+pw_qmf_coeffs4: dw  53,    0,  -11,    0,  -11,    0,   3,    0
+
+SECTION_TEXT
+
+INIT_XMM sse2
+cglobal g722_apply_qmf, 2, 2, 5, prev, out
+    movu m0, [prevq+mmsize*0]
+    movu m1, [prevq+mmsize*1]
+    movu m2, [prevq+mmsize*2]
+    punpcklwd m3, m0, m1
+    punpckhwd m0, m1
+    punpcklwd m4, m2, m2
+    punpckhwd m2, m2
+    pmaddwd   m3, [pw_qmf_coeffs ]
+    pmaddwd   m0, [pw_qmf_coeffs2]
+    pmaddwd   m4, [pw_qmf_coeffs3]
+    pmaddwd   m2, [pw_qmf_coeffs4]
+    paddd     m0, m3
+    paddd     m2, m4
+    paddd     m0, m2
+    pshufd    m2, m0, q0032
+    paddd     m0, m2
+    pshufd    m0, m0, q0001
+    movq  [outq], m0
+    RET

libavcodec/x86/g722dsp_init.c

@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2014 James Almer
+ *
+ * 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 <stdint.h>
+
+#include "libavutil/attributes.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/g722dsp.h"
+
+void ff_g722_apply_qmf_sse2(const int16_t *prev_samples, int xout[2]);
+
+av_cold void ff_g722dsp_init_x86(G722DSPContext *dsp)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (EXTERNAL_SSE2(cpu_flags))
+        dsp->apply_qmf = ff_g722_apply_qmf_sse2;
+}