From fa1a84337a7cd2a62c26a9d5f8d707a97e917f77 Mon Sep 17 00:00:00 2001 From: sunyuechi Date: Mon, 18 Dec 2023 22:52:20 +0800 Subject: [PATCH 5/6] lavc/takdsp: R-V V decorrelate_sr C908: decorrelate_sr_c: 95.5 decorrelate_sr_rvv_i32: 28.2 --- libavcodec/riscv/takdsp_init.c | 2 ++ libavcodec/riscv/takdsp_rvv.S | 14 ++++++++++++++ 2 files changed, 16 insertions(+) diff --git a/libavcodec/riscv/takdsp_init.c b/libavcodec/riscv/takdsp_init.c index fcf0c5f37b..0b4ec18086 100644 --- a/libavcodec/riscv/takdsp_init.c +++ b/libavcodec/riscv/takdsp_init.c @@ -26,6 +26,7 @@ #include "libavcodec/takdsp.h" void ff_decorrelate_ls_rvv(int32_t *p1, int32_t *p2, int length); +void ff_decorrelate_sr_rvv(int32_t *p1, int32_t *p2, int length); av_cold void ff_takdsp_init_riscv(TAKDSPContext *dsp) { @@ -34,6 +35,7 @@ av_cold void ff_takdsp_init_riscv(TAKDSPContext *dsp) if ((flags & AV_CPU_FLAG_RVV_I32) && (flags & AV_CPU_FLAG_RVB_ADDR)) { dsp->decorrelate_ls = ff_decorrelate_ls_rvv; + dsp->decorrelate_sr = ff_decorrelate_sr_rvv; } #endif } diff --git a/libavcodec/riscv/takdsp_rvv.S b/libavcodec/riscv/takdsp_rvv.S index 00e8e38fdf..65c79e1aa9 100644 --- a/libavcodec/riscv/takdsp_rvv.S +++ b/libavcodec/riscv/takdsp_rvv.S @@ -33,3 +33,17 @@ func ff_decorrelate_ls_rvv, zve32x bnez a2, 1b ret endfunc + +func ff_decorrelate_sr_rvv, zve32x +1: + vsetvli t0, a2, e32, m8, ta, ma + vle32.v v0, (a0) + sub a2, a2, t0 + vle32.v v8, (a1) + sh2add a1, t0, a1 + vsub.vv v16, v8, v0 + vse32.v v16, (a0) + sh2add a0, t0, a0 + bnez a2, 1b + ret +endfunc -- 2.43.0