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Code Issues Releases Activity

lavc/audiodsp: RISC-V V scalarproduct_int16

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Rémi Denis-Courmont 2022-09-26 17:52:42 +03:00 committed by Lynne
parent f127a5d29d
commit f41ae62f39
2 changed files with 23 additions and 1 deletions
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5
libavcodec/riscv/audiodsp_init.c
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@ -26,6 +26,7 @@
void ff_vector_clipf_rvf(float *dst, const float *src, int len, float min, float max);
int32_t ff_scalarproduct_int16_rvv(const int16_t *v1, const int16_t *v2, int len);
void ff_vector_clip_int32_rvv(int32_t *dst, const int32_t *src, int32_t min,
int32_t max, unsigned int len);
void ff_vector_clipf_rvv(float *dst, const float *src, int len, float min, float max);
@ -37,8 +38,10 @@ av_cold void ff_audiodsp_init_riscv(AudioDSPContext *c)
if (flags & AV_CPU_FLAG_RVF)
c->vector_clipf = ff_vector_clipf_rvf;
#if HAVE_RVV
if (flags & AV_CPU_FLAG_RVV_I32)
if (flags & AV_CPU_FLAG_RVV_I32) {
c->scalarproduct_int16 = ff_scalarproduct_int16_rvv;
c->vector_clip_int32 = ff_vector_clip_int32_rvv;
}
if (flags & AV_CPU_FLAG_RVV_F32)
c->vector_clipf = ff_vector_clipf_rvv;
#endif

19
libavcodec/riscv/audiodsp_rvv.S
View File

@ -20,6 +20,25 @@
#include "libavutil/riscv/asm.S"
func ff_scalarproduct_int16_rvv, zve32x
vsetvli zero, zero, e16, m1, ta, ma
vmv.s.x v8, zero
1:
vsetvli t0, a2, e16, m1, ta, ma
vle16.v v16, (a0)
sub a2, a2, t0
vle16.v v24, (a1)
sh1add a0, t0, a0
vwmul.vv v0, v16, v24
sh1add a1, t0, a1
vsetvli zero, t0, e32, m2, ta, ma
vredsum.vs v8, v0, v8
bnez a2, 1b
vmv.x.s a0, v8
ret
endfunc
func ff_vector_clip_int32_rvv, zve32x
1:
vsetvli t0, a4, e32, m1, ta, ma