T-Head C908:
quant_bands_signed_c: 576.0
quant_bands_signed_rvv_f32: 48.7
quant_bands_unsigned_c: 414.2
quant_bands_unsigned_rvv_f32: 31.7
SpacemiT X60:
quant_bands_signed_c: 497.7
quant_bands_signed_rvv_f32: 23.0
quant_bands_unsigned_c: 353.5
quant_bands_unsigned_rvv_f32: 16.2
---
libavcodec/riscv/aacencdsp_init.c | 3 +++
libavcodec/riscv/aacencdsp_rvv.S | 31 +++++++++++++++++++++++++++++++
2 files changed, 34 insertions(+)
diff --git a/libavcodec/riscv/aacencdsp_init.c
b/libavcodec/riscv/aacencdsp_init.c
index b27af9d973..73bc8d8fa3 100644
--- a/libavcodec/riscv/aacencdsp_init.c
+++ b/libavcodec/riscv/aacencdsp_init.c
@@ -26,6 +26,8 @@
#include "libavcodec/aacencdsp.h"
void ff_abs_pow34_rvv(float *out, const float *in, const int size);
+void ff_aac_quant_bands_rvv(int *, const float *, const float *, int, int,
+ int, const float, const float);
av_cold void ff_aacenc_dsp_init_riscv(AACEncDSPContext *s)
{
@@ -35,6 +37,7 @@ av_cold void ff_aacenc_dsp_init_riscv(AACEncDSPContext *s)
if (flags & AV_CPU_FLAG_RVV_F32) {
if (flags & AV_CPU_FLAG_RVB_ADDR) {
s->abs_pow34 = ff_abs_pow34_rvv;
+ s->quant_bands = ff_aac_quant_bands_rvv;
}
}
#endif
diff --git a/libavcodec/riscv/aacencdsp_rvv.S b/libavcodec/riscv/aacencdsp_rvv.S
index 4c7a874d77..ddb4155398 100644
--- a/libavcodec/riscv/aacencdsp_rvv.S
+++ b/libavcodec/riscv/aacencdsp_rvv.S
@@ -1,5 +1,6 @@
/*
* Copyright (c) 2023 Institue of Software Chinese Academy of Sciences (ISCAS).
+ * Copyright © 2024 Rémi Denis-Courmont.
*
* This file is part of FFmpeg.
*
@@ -36,3 +37,33 @@ func ff_abs_pow34_rvv, zve32f
ret
endfunc
+
+func ff_aac_quant_bands_rvv, zve32f
+NOHWF fmv.w.x fa0, a6
+NOHWF fmv.w.x fa1, a7
+ fcvt.s.w ft0, a5
+ bnez a4, .L1 # signed?
+ .irp signed, 0, 1
+.L\signed:
+ vsetvli t0, a3, e32, m8, ta, ma
+ vle32.v v16, (a2)
+ sub a3, a3, t0
+ .if \signed
+ vle32.v v8, (a1)
+ sh2add a1, t0, a1
+ .endif
+ vfmul.vf v16, v16, fa0
+ sh2add a2, t0, a2
+ vfadd.vf v16, v16, fa1
+ vfmin.vf v16, v16, ft0
+ .if \signed
+ vfsgnjx.vv v16, v16, v8
+ .endif
+ vfcvt.x.f.v v16, v16
+ vse32.v v16, (a0)
+ sh2add a0, t0, a0
+ bnez a3, .L\signed
+
+ ret
+ .endr
+endfunc
--
2.45.1
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