[FFmpeg-cvslog] lavc/sbrdsp: R-V V sum64x5
Rémi Denis-Courmont
git at videolan.org
Wed Nov 1 22:53:57 EET 2023
ffmpeg | branch: master | Rémi Denis-Courmont <remi at remlab.net> | Sun Oct 29 17:39:53 2023 +0200| [86bee424730bc0dcba0e101773e6f3c71e39bd29] | committer: Rémi Denis-Courmont
lavc/sbrdsp: R-V V sum64x5
sum64x5_c: 385.0
sum64x5_rvv_f32: 116.0
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=86bee424730bc0dcba0e101773e6f3c71e39bd29
---
libavcodec/riscv/Makefile | 4 ++--
libavcodec/riscv/sbrdsp_init.c | 37 +++++++++++++++++++++++++++++++
libavcodec/riscv/sbrdsp_rvv.S | 50 ++++++++++++++++++++++++++++++++++++++++++
libavcodec/sbrdsp.h | 1 +
libavcodec/sbrdsp_template.c | 2 ++
5 files changed, 92 insertions(+), 2 deletions(-)
diff --git a/libavcodec/riscv/Makefile b/libavcodec/riscv/Makefile
index 06815d3170..2c9af16782 100644
--- a/libavcodec/riscv/Makefile
+++ b/libavcodec/riscv/Makefile
@@ -1,5 +1,5 @@
-OBJS-$(CONFIG_AAC_DECODER) += riscv/aacpsdsp_init.o
-RVV-OBJS-$(CONFIG_AAC_DECODER) += riscv/aacpsdsp_rvv.o
+OBJS-$(CONFIG_AAC_DECODER) += riscv/aacpsdsp_init.o riscv/sbrdsp_init.o
+RVV-OBJS-$(CONFIG_AAC_DECODER) += riscv/aacpsdsp_rvv.o riscv/sbrdsp_rvv.o
OBJS-$(CONFIG_AC3DSP) += riscv/ac3dsp_init.o \
riscv/ac3dsp_rvb.o
OBJS-$(CONFIG_ALAC_DECODER) += riscv/alacdsp_init.o
diff --git a/libavcodec/riscv/sbrdsp_init.c b/libavcodec/riscv/sbrdsp_init.c
new file mode 100644
index 0000000000..837f24e1e0
--- /dev/null
+++ b/libavcodec/riscv/sbrdsp_init.c
@@ -0,0 +1,37 @@
+/*
+ * Copyright © 2023 Rémi Denis-Courmont.
+ *
+ * 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/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavcodec/sbrdsp.h"
+
+void ff_sbr_sum64x5_rvv(float *z);
+
+av_cold void ff_sbrdsp_init_riscv(SBRDSPContext *c)
+{
+#if HAVE_RVV
+ int flags = av_get_cpu_flags();
+
+ if ((flags & AV_CPU_FLAG_RVV_F32) && (flags & AV_CPU_FLAG_RVB_ADDR)) {
+ c->sum64x5 = ff_sbr_sum64x5_rvv;
+ }
+#endif
+}
diff --git a/libavcodec/riscv/sbrdsp_rvv.S b/libavcodec/riscv/sbrdsp_rvv.S
new file mode 100644
index 0000000000..e1d548b41b
--- /dev/null
+++ b/libavcodec/riscv/sbrdsp_rvv.S
@@ -0,0 +1,50 @@
+/*
+ * Copyright © 2023 Rémi Denis-Courmont.
+ *
+ * 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/riscv/asm.S"
+
+func ff_sbr_sum64x5_rvv, zve32f
+ li a5, 64
+ addi a1, a0, 64 * 4
+ addi a2, a0, 128 * 4
+ addi a3, a0, 192 * 4
+ addi a4, a0, 256 * 4
+1:
+ vsetvli t0, a5, e32, m8, ta, ma
+ sub a5, a5, t0
+ vle32.v v0, (a0)
+ vle32.v v8, (a1)
+ sh2add a1, t0, a1
+ vle32.v v16, (a2)
+ vfadd.vv v0, v0, v8
+ sh2add a2, t0, a2
+ vle32.v v24, (a3)
+ vfadd.vv v0, v0, v16
+ sh2add a3, t0, a3
+ vle32.v v8, (a4)
+ vfadd.vv v0, v0, v24
+ sh2add a4, t0, a4
+ vfadd.vv v0, v0, v8
+ vse32.v v0, (a0)
+ sh2add a0, t0, a0
+ bnez a5, 1b
+
+ ret
+endfunc
diff --git a/libavcodec/sbrdsp.h b/libavcodec/sbrdsp.h
index 8513c423af..49782202a7 100644
--- a/libavcodec/sbrdsp.h
+++ b/libavcodec/sbrdsp.h
@@ -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_riscv(SBRDSPContext *s);
void ff_sbrdsp_init_x86(SBRDSPContext *s);
void ff_sbrdsp_init_mips(SBRDSPContext *s);
diff --git a/libavcodec/sbrdsp_template.c b/libavcodec/sbrdsp_template.c
index 89e389d9a0..79cd2156d9 100644
--- a/libavcodec/sbrdsp_template.c
+++ b/libavcodec/sbrdsp_template.c
@@ -98,6 +98,8 @@ av_cold void AAC_RENAME(ff_sbrdsp_init)(SBRDSPContext *s)
ff_sbrdsp_init_arm(s);
#elif ARCH_AARCH64
ff_sbrdsp_init_aarch64(s);
+#elif ARCH_RISCV
+ ff_sbrdsp_init_riscv(s);
#elif ARCH_X86
ff_sbrdsp_init_x86(s);
#elif ARCH_MIPS
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