Okay, updated in the reply. Rémi Denis-Courmont <r...@remlab.net> 于2023年12月19日周二 00:25写道:
> Le maanantaina 18. joulukuuta 2023, 17.26.58 EET flow gg a écrit : > > A 'shnadd' should be moved to the front, updated in this reply. > > Indeed, but please try to interleave scalar and vector instructions. The > C908 > IP does not really care, but apparently, in-order vector processor are > going > to be happening next year. > > -- > Rémi Denis-Courmont > http://www.remlab.net/ > > > > _______________________________________________ > ffmpeg-devel mailing list > ffmpeg-devel@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel > > To unsubscribe, visit link above, or email > ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe". >
From 0b29172cfa684906868ef9d185ae2f96ab4ed598 Mon Sep 17 00:00:00 2001 From: sunyuechi <sunyue...@iscas.ac.cn> Date: Mon, 18 Dec 2023 22:49:21 +0800 Subject: [PATCH 4/6] lavc/takdsp: R-V V decorrelate_ls C908: decorrelate_ls_c: 69.7 decorrelate_ls_rvv_i32: 27.2 --- libavcodec/riscv/Makefile | 2 ++ libavcodec/riscv/takdsp_init.c | 39 ++++++++++++++++++++++++++++++++++ libavcodec/riscv/takdsp_rvv.S | 35 ++++++++++++++++++++++++++++++ libavcodec/takdsp.c | 4 +++- libavcodec/takdsp.h | 1 + 5 files changed, 80 insertions(+), 1 deletion(-) create mode 100644 libavcodec/riscv/takdsp_init.c create mode 100644 libavcodec/riscv/takdsp_rvv.S diff --git a/libavcodec/riscv/Makefile b/libavcodec/riscv/Makefile index 6f7cb8791f..aa758eba1c 100644 --- a/libavcodec/riscv/Makefile +++ b/libavcodec/riscv/Makefile @@ -42,6 +42,8 @@ RVV-OBJS-$(CONFIG_OPUS_DECODER) += riscv/opusdsp_rvv.o OBJS-$(CONFIG_PIXBLOCKDSP) += riscv/pixblockdsp_init.o RV-OBJS-$(CONFIG_PIXBLOCKDSP) += riscv/pixblockdsp_rvi.o RVV-OBJS-$(CONFIG_PIXBLOCKDSP) += riscv/pixblockdsp_rvv.o +OBJS-$(CONFIG_TAK_DECODER) += riscv/takdsp_init.o +RVV-OBJS-$(CONFIG_TAK_DECODER) += riscv/takdsp_rvv.o OBJS-$(CONFIG_UTVIDEO_DECODER) += riscv/utvideodsp_init.o RVV-OBJS-$(CONFIG_UTVIDEO_DECODER) += riscv/utvideodsp_rvv.o OBJS-$(CONFIG_VC1DSP) += riscv/vc1dsp_init.o diff --git a/libavcodec/riscv/takdsp_init.c b/libavcodec/riscv/takdsp_init.c new file mode 100644 index 0000000000..fcf0c5f37b --- /dev/null +++ b/libavcodec/riscv/takdsp_init.c @@ -0,0 +1,39 @@ +/* + * Copyright (c) 2023 Institue of Software Chinese Academy of Sciences (ISCAS). + * + * 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/cpu.h" +#include "libavutil/riscv/cpu.h" +#include "libavcodec/takdsp.h" + +void ff_decorrelate_ls_rvv(int32_t *p1, int32_t *p2, int length); + +av_cold void ff_takdsp_init_riscv(TAKDSPContext *dsp) +{ +#if HAVE_RVV + int flags = av_get_cpu_flags(); + + if ((flags & AV_CPU_FLAG_RVV_I32) && (flags & AV_CPU_FLAG_RVB_ADDR)) { + dsp->decorrelate_ls = ff_decorrelate_ls_rvv; + } +#endif +} diff --git a/libavcodec/riscv/takdsp_rvv.S b/libavcodec/riscv/takdsp_rvv.S new file mode 100644 index 0000000000..c662049f3d --- /dev/null +++ b/libavcodec/riscv/takdsp_rvv.S @@ -0,0 +1,35 @@ +/* + * Copyright (c) 2023 Institue of Software Chinese Academy of Sciences (ISCAS). + * + * 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_decorrelate_ls_rvv, zve32x +1: + vsetvli t0, a2, e32, m8, ta, ma + sub a2, a2, t0 + vle32.v v0, (a0) + sh2add a0, t0, a0 + vle32.v v8, (a1) + vadd.vv v16, v0, v8 + vse32.v v16, (a1) + sh2add a1, t0, a1 + bnez a2, 1b + ret +endfunc diff --git a/libavcodec/takdsp.c b/libavcodec/takdsp.c index b646a063db..25cac558ce 100644 --- a/libavcodec/takdsp.c +++ b/libavcodec/takdsp.c @@ -77,7 +77,9 @@ av_cold void ff_takdsp_init(TAKDSPContext *c) c->decorrelate_sm = decorrelate_sm; c->decorrelate_sf = decorrelate_sf; -#if ARCH_X86 +#if ARCH_RISCV + ff_takdsp_init_riscv(c); +#elif ARCH_X86 ff_takdsp_init_x86(c); #endif } diff --git a/libavcodec/takdsp.h b/libavcodec/takdsp.h index c05b5741a4..55f1a10cd3 100644 --- a/libavcodec/takdsp.h +++ b/libavcodec/takdsp.h @@ -29,6 +29,7 @@ typedef struct TAKDSPContext { } TAKDSPContext; void ff_takdsp_init(TAKDSPContext *c); +void ff_takdsp_init_riscv(TAKDSPContext *c); void ff_takdsp_init_x86(TAKDSPContext *c); #endif /* AVCODEC_TAKDSP_H */ -- 2.43.0
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