From 51d950fe739fd90217d561c84d81aed2c6ed8713 Mon Sep 17 00:00:00 2001
From: Matthieu Bouron <matthieu.bouron@gmail.com>
Date: Tue, 23 May 2017 14:29:35 +0000
Subject: [PATCH] lavc/aarch64: add sbrdsp neon implementation
---
libavcodec/aarch64/Makefile | 2 +
libavcodec/aarch64/sbrdsp_init_aarch64.c | 71 +++++++
libavcodec/aarch64/sbrdsp_neon.S | 329 +++++++++++++++++++++++++++++++
libavcodec/sbrdsp.h | 1 +
libavcodec/sbrdsp_template.c | 2 +
5 files changed, 405 insertions(+)
create mode 100644 libavcodec/aarch64/sbrdsp_init_aarch64.c
create mode 100644 libavcodec/aarch64/sbrdsp_neon.S
@@ -11,6 +11,7 @@ OBJS-$(CONFIG_NEON_CLOBBER_TEST) += aarch64/neontest.o
OBJS-$(CONFIG_VIDEODSP) += aarch64/videodsp_init.o
# decoders/encoders
+OBJS-$(CONFIG_AAC_DECODER) += aarch64/sbrdsp_init_aarch64.o
OBJS-$(CONFIG_DCA_DECODER) += aarch64/synth_filter_init.o
OBJS-$(CONFIG_RV40_DECODER) += aarch64/rv40dsp_init_aarch64.o
OBJS-$(CONFIG_VC1DSP) += aarch64/vc1dsp_init_aarch64.o
@@ -27,6 +28,7 @@ ARMV8-OBJS-$(CONFIG_VIDEODSP) += aarch64/videodsp.o
# NEON optimizations
# subsystems
+NEON-OBJS-$(CONFIG_AAC_DECODER) += aarch64/sbrdsp_neon.o
NEON-OBJS-$(CONFIG_FFT) += aarch64/fft_neon.o
NEON-OBJS-$(CONFIG_FMTCONVERT) += aarch64/fmtconvert_neon.o
NEON-OBJS-$(CONFIG_H264CHROMA) += aarch64/h264cmc_neon.o
new file mode 100644
@@ -0,0 +1,71 @@
+/*
+ *
+ * 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 "config.h"
+#include "libavutil/aarch64/cpu.h"
+#include "libavutil/attributes.h"
+#include "libavcodec/sbrdsp.h"
+
+void ff_sbr_sum64x5_neon(float *z);
+float ff_sbr_sum_square_neon(float (*x)[2], int n);
+void ff_sbr_neg_odd_64_neon(float *x);
+void ff_sbr_qmf_pre_shuffle_neon(float *z);
+void ff_sbr_qmf_post_shuffle_neon(float W[32][2], const float *z);
+void ff_sbr_qmf_deint_neg_neon(float *v, const float *src);
+void ff_sbr_qmf_deint_bfly_neon(float *v, const float *src0, const float *src1);
+void ff_sbr_hf_g_filt_neon(float (*Y)[2], const float (*X_high)[40][2],
+ const float *g_filt, int m_max, intptr_t ixh);
+void ff_sbr_hf_gen_neon(float (*X_high)[2], const float (*X_low)[2],
+ const float alpha0[2], const float alpha1[2],
+ float bw, int start, int end);
+void ff_sbr_autocorrelate_neon(const float x[40][2], float phi[3][2][2]);
+void ff_sbr_hf_apply_noise_0_neon(float Y[64][2], const float *s_m,
+ const float *q_filt, int noise,
+ int kx, int m_max);
+void ff_sbr_hf_apply_noise_1_neon(float Y[64][2], const float *s_m,
+ const float *q_filt, int noise,
+ int kx, int m_max);
+void ff_sbr_hf_apply_noise_2_neon(float Y[64][2], const float *s_m,
+ const float *q_filt, int noise,
+ int kx, int m_max);
+void ff_sbr_hf_apply_noise_3_neon(float Y[64][2], const float *s_m,
+ const float *q_filt, int noise,
+ int kx, int m_max);
+
+av_cold void ff_sbrdsp_init_aarch64(SBRDSPContext *s)
+{
+ int cpu_flags = av_get_cpu_flags();
+
+ if (have_neon(cpu_flags)) {
+ s->sum64x5 = ff_sbr_sum64x5_neon;
+ s->sum_square = ff_sbr_sum_square_neon;
+ s->neg_odd_64 = ff_sbr_neg_odd_64_neon;
+ s->qmf_pre_shuffle = ff_sbr_qmf_pre_shuffle_neon;
+ s->qmf_post_shuffle = ff_sbr_qmf_post_shuffle_neon;
+ s->qmf_deint_neg = ff_sbr_qmf_deint_neg_neon;
+ s->qmf_deint_bfly = ff_sbr_qmf_deint_bfly_neon;
+ s->hf_g_filt = ff_sbr_hf_g_filt_neon;
+ s->hf_gen = ff_sbr_hf_gen_neon;
+ s->autocorrelate = ff_sbr_autocorrelate_neon;
+ s->hf_apply_noise[0] = ff_sbr_hf_apply_noise_0_neon;
+ s->hf_apply_noise[1] = ff_sbr_hf_apply_noise_1_neon;
+ s->hf_apply_noise[2] = ff_sbr_hf_apply_noise_2_neon;
+ s->hf_apply_noise[3] = ff_sbr_hf_apply_noise_3_neon;
+ }
+}
new file mode 100644
@@ -0,0 +1,329 @@
+/*
+ * Copyright (c) 2017 Matthieu Bouron <matthieu.bouron@gmail.com>
+ *
+ * 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/aarch64/asm.S"
+
+const factors, align=4
+ .float 1.0, -1.0, 1.0, -1.0
+endconst
+
+const phi_noise_0, align=4
+ .float 1.0, 0.0, 1.0, 0.0
+endconst
+
+const phi_noise_1, align=4
+ .float 0.0, 1.0, 0.0, -1.0
+ .float 0.0, -1.0, 0.0, 1.0
+endconst
+
+const phi_noise_2, align=4
+ .float -1.0, 0.0, -1.0, 0.0
+endconst
+
+const phi_noise_3, align=4
+ .float 0.0, -1.0, 0.0, 1.0
+ .float 0.0, 1.0, 0.0, -1.0
+endconst
+
+function ff_sbr_sum64x5_neon, export=1
+ add x1, x0, #64*4
+ add x2, x0, #128*4
+ add x3, x0, #192*4
+ add x4, x0, #256*4
+ mov x5, #64
+1: ld1 {v0.4S}, [x0]
+ ld1 {v1.4S}, [x1], #16
+ fadd v0.4S, v0.4S, v1.4S
+ ld1 {v2.4S}, [x2], #16
+ fadd v0.4S, v0.4S, v2.4S
+ ld1 {v3.4S}, [x3], #16
+ fadd v0.4S, v0.4S, v3.4S
+ ld1 {v4.4S}, [x4], #16
+ fadd v0.4S, v0.4S, v4.4S
+ st1 {v0.4S}, [x0], #16
+ subs x5, x5, #4
+ bgt 1b
+ ret
+endfunc
+
+function ff_sbr_sum_square_neon, export=1
+ movi v0.4S, #0
+1: ld1 {v1.4S}, [x0], #16
+ fmla v0.4S, v1.4S, v1.4S
+ subs w1, w1, #2
+ bgt 1b
+ faddp v0.4S, v0.4S, v0.4S
+ faddp v0.4S, v0.4S, v0.4S
+ ret
+endfunc
+
+function ff_sbr_neg_odd_64_neon, export=1
+ mov x1, x0
+ movi v5.4S, #1<<7, lsl #24
+ ld2 {v0.4S, v1.4S}, [x0], #32
+ eor v1.16B, v1.16B, v5.16B
+ ld2 {v2.4S, v3.4S}, [x0], #32
+.rept 3
+ st2 {v0.4S, v1.4S}, [x1], #32
+ eor v3.16B, v3.16B, v5.16B
+ ld2 {v0.4S, v1.4S}, [x0], #32
+ st2 {v2.4S, v3.4S}, [x1], #32
+ eor v1.16B, v1.16B, v5.16B
+ ld2 {v2.4S, v3.4S}, [x0], #32
+.endr
+ eor v3.16B, v3.16B, v5.16B
+ st2 {v0.4S, v1.4S}, [x1], #32
+ st2 {v2.4S, v3.4S}, [x1], #32
+ ret
+endfunc
+
+function ff_sbr_qmf_pre_shuffle_neon, export=1
+ add x1, x0, #60*4
+ add x2, x0, #64*4
+ mov x3, #-16
+ mov x4, #-4
+ movi v6.4S, #1<<7, lsl #24
+ ld1 {v0.2S}, [x0], #8
+ st1 {v0.2S}, [x2], #8
+.rept 7
+ ld1 {v1.4S}, [x1], x3
+ ld1 {v2.4S}, [x0], #16
+ eor v1.16B, v1.16B, v6.16B
+ rev64 v1.4S, v1.4S
+ ext v1.16B, v1.16B, v1.16B, #8
+ st2 {v1.4S, v2.4S}, [x2], #32
+.endr
+ add x1, x1, #8
+ ld1 {v1.2S}, [x1], x4
+ ld1 {v2.2S}, [x0], #8
+ ld1 {v1.S}[3], [x1]
+ ld1 {v2.S}[2], [x0]
+ eor v1.16B, v1.16B, v6.16B
+ rev64 v1.4S, v1.4S
+ st2 {v1.2S, v2.2S}, [x2], #16
+ st2 {v1.S, v2.S}[2], [x2]
+ ret
+endfunc
+
+function ff_sbr_qmf_post_shuffle_neon, export=1
+ add x2, x1, #60*4
+ mov x3, #-16
+ mov x4, #32
+ movi v6.4S, #1<<7, lsl #24
+1: ld1 {v0.4S}, [x2], x3
+ ld1 {v1.4S}, [x1], #16
+ eor v0.16B, v0.16B, v6.16B
+ rev64 v0.4S, v0.4S
+ ext v0.16B, v0.16B, v0.16B, #8
+ st2 {v0.4S, v1.4S}, [x0], #32
+ subs x4, x4, #4
+ bgt 1b
+ ret
+endfunc
+
+function ff_sbr_qmf_deint_neg_neon, export=1
+ add x1, x1, #56*4
+ add x2, x0, #60*4
+ mov x3, #-32
+ mov x4, #32
+ movi v2.4S, #1<<7, lsl #24
+1: ld2 {v0.4S, v1.4S}, [x1], x3
+ eor v0.16B, v0.16B, v2.16B
+ rev64 v1.4S, v1.4S
+ ext v1.16B, v1.16B, v1.16B, #8
+ st1 {v0.4S}, [x2]
+ st1 {v1.4S}, [x0], #16
+ sub x2, x2, #16
+ subs x4, x4, #4
+ bgt 1b
+ ret
+endfunc
+
+function ff_sbr_qmf_deint_bfly_neon, export=1
+ add x2, x2, #60*4
+ add x3, x0, #124*4
+ mov x4, #64
+ mov x5, #-16
+1: ld1 {v0.4S}, [x1], #16
+ ld1 {v1.4S}, [x2], x5
+ rev64 v2.4S, v0.4S
+ ext v2.16B, v2.16B, v2.16B, #8
+ rev64 v3.4S, v1.4S
+ ext v3.16B, v3.16B, v3.16B, #8
+ fadd v1.4S, v1.4S, v2.4S
+ fsub v0.4S, v0.4S, v3.4S
+ st1 {v0.4S}, [x0], #16
+ st1 {v1.4S}, [x3], x5
+ subs x4, x4, #4
+ bgt 1b
+ ret
+endfunc
+
+function ff_sbr_hf_gen_neon, export=1
+ sxtw x4, w4
+ sxtw x5, w5
+ movrel x6, factors
+ ld1 {v7.4S}, [x6]
+ dup v1.4S, v0.S[0]
+ mov v2.8B, v1.8B
+ mov v2.S[2], v7.S[0]
+ mov v2.S[3], v7.S[0]
+ fmul v1.4S, v1.4S, v2.4S
+ ld1 {v0.D}[0], [x3]
+ ld1 {v0.D}[1], [x2]
+ fmul v0.4S, v0.4S, v1.4S
+ fmul v1.4S, v0.4S, v7.4S
+ rev64 v0.4S, v0.4S
+ sub x7, x5, x4
+ add x0, x0, x4, lsl #3
+ add x1, x1, x4, lsl #3
+ sub x1, x1, #16
+1: ld1 {v2.4S}, [x1], #16
+ ld1 {v3.2S}, [x1]
+ fmul v4.4S, v2.4S, v1.4S
+ fmul v5.4S, v2.4S, v0.4S
+ faddp v4.4S, v4.4S, v4.4S
+ faddp v5.4S, v5.4S, v5.4S
+ faddp v4.4S, v4.4S, v4.4S
+ faddp v5.4S, v5.4S, v5.4S
+ mov v4.S[1], v5.S[0]
+ fadd v4.2S, v4.2S, v3.2S
+ st1 {v4.2S}, [x0], #8
+ sub x1, x1, #8
+ subs x7, x7, #1
+ bgt 1b
+ ret
+endfunc
+
+function ff_sbr_hf_g_filt_neon, export=1
+ sxtw x3, w3
+ sxtw x4, w4
+ mov x5, #40*2*4
+ add x1, x1, x4, lsl #3
+1: ld1 {v0.2S}, [x1], x5
+ ld1 {v1.S}[0], [x2], #4
+ fmul v2.4S, v0.4S, v1.S[0]
+ st1 {v2.2S}, [x0], #8
+ subs x3, x3, #1
+ bgt 1b
+ ret
+endfunc
+
+function ff_sbr_autocorrelate_neon, export=1
+ mov x2, #38
+ movrel x3, factors
+ ld1 {v0.4S}, [x3]
+ movi v1.4S, #0
+ movi v2.4S, #0
+ movi v3.4S, #0
+ ld1 {v4.2S}, [x0], #8
+ ld1 {v5.2S}, [x0], #8
+ fmul v16.2S, v4.2S, v4.2S
+ fmul v17.2S, v5.2S, v4.S[0]
+ fmul v18.2S, v5.2S, v4.S[1]
+1: ld1 {v5.D}[1], [x0], #8
+ fmla v1.2S, v4.2S, v4.2S
+ fmla v2.4S, v5.4S, v4.S[0]
+ fmla v3.4S, v5.4S, v4.S[1]
+ mov v4.D[0], v5.D[0]
+ mov v5.D[0], v5.D[1]
+ subs x2, x2, #1
+ bgt 1b
+ fmul v19.2S, v4.2S, v4.2S
+ fmul v20.2S, v5.2S, v4.S[0]
+ fmul v21.2S, v5.2S, v4.S[1]
+ fadd v22.4S, v2.4S, v20.4S
+ fsub v22.4S, v22.4S, v17.4S
+ fadd v23.4S, v3.4S, v21.4S
+ fsub v23.4S, v23.4S, v18.4S
+ rev64 v23.4S, v23.4S
+ fmul v23.4S, v23.4S, v0.4S
+ fadd v22.4S, v22.4S, v23.4S
+ st1 {v22.4S}, [x1], #16
+ fadd v23.2S, v1.2S, v19.2S
+ fsub v23.2S, v23.2S, v16.2S
+ faddp v23.2S, v23.2S, v23.2S
+ st1 {v23.S}[0], [x1]
+ add x1, x1, #8
+ rev64 v3.2S, v3.2S
+ fmul v3.2S, v3.2S, v0.2S
+ fadd v2.2S, v2.2S, v3.2S
+ st1 {v2.2S}, [x1]
+ add x1, x1, #16
+ faddp v1.2S, v1.2S, v1.2S
+ st1 {v1.S}[0], [x1]
+ ret
+endfunc
+
+.macro apply_noise_common
+ sxtw x3, w3
+ sxtw x5, w5
+ movrel x7, X(ff_sbr_noise_table)
+ add x3, x3, #1
+1: and x3, x3, #0x1ff
+ add x8, x7, x3, lsl #3
+ add x3, x3, #2
+ ld1 {v2.4S}, [x0]
+ ld1 {v3.2S}, [x1], #8
+ ld1 {v4.2S}, [x2], #8
+ ld1 {v5.4S}, [x8]
+ mov v6.16B, v2.16B
+ zip1 v3.4S, v3.4S, v3.4S
+ zip1 v4.4S, v4.4S, v4.4S
+ fmla v6.4S, v1.4S, v3.4S
+ fmla v2.4S, v5.4S, v4.4S
+ fcmeq v7.4S, v3.4S, #0.0
+ bif v2.16B, v6.16B, v7.16B
+ st1 {v2.4S}, [x0], #16
+ subs x5, x5, #2
+ bgt 1b
+.endm
+
+function ff_sbr_hf_apply_noise_0_neon, export=1
+ movrel x9, phi_noise_0
+ ld1 {v1.4S}, [x9]
+ apply_noise_common
+ ret
+endfunc
+
+function ff_sbr_hf_apply_noise_1_neon, export=1
+ movrel x9, phi_noise_1
+ and x4, x4, #1
+ add x9, x9, x4, lsl #4
+ ld1 {v1.4S}, [x9]
+ apply_noise_common
+ ret
+endfunc
+
+function ff_sbr_hf_apply_noise_2_neon, export=1
+ movrel x9, phi_noise_2
+ ld1 {v1.4S}, [x9]
+ apply_noise_common
+ ret
+endfunc
+
+function ff_sbr_hf_apply_noise_3_neon, export=1
+ movrel x9, phi_noise_3
+ and x4, x4, #1
+ add x9, x9, x4, lsl #4
+ ld1 {v1.4S}, [x9]
+ apply_noise_common
+ ret
+endfunc
@@ -48,6 +48,7 @@ extern const INTFLOAT AAC_RENAME(ff_sbr_noise_table)[][2];
void AAC_RENAME(ff_sbrdsp_init)(SBRDSPContext *s);
void ff_sbrdsp_init_arm(SBRDSPContext *s);
+void ff_sbrdsp_init_aarch64(SBRDSPContext *s);
void ff_sbrdsp_init_x86(SBRDSPContext *s);
void ff_sbrdsp_init_mips(SBRDSPContext *s);
@@ -94,6 +94,8 @@ av_cold void AAC_RENAME(ff_sbrdsp_init)(SBRDSPContext *s)
#if !USE_FIXED
if (ARCH_ARM)
ff_sbrdsp_init_arm(s);
+ if (ARCH_AARCH64)
+ ff_sbrdsp_init_aarch64(s);
if (ARCH_X86)
ff_sbrdsp_init_x86(s);
if (ARCH_MIPS)
--
2.13.1