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lavc/aacpsdsp: RISC-V V hybrid_analysis_ileave

This commit is contained in:
Rémi Denis-Courmont 2022-09-26 17:52:49 +03:00 committed by Lynne
parent 15c3a0bd6e
commit 09f907999f
2 changed files with 40 additions and 0 deletions
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5
libavcodec/riscv/aacpsdsp_init.c
View File

@ -29,6 +29,8 @@ void ff_ps_mul_pair_single_rvv(float (*dst)[2], float (*src0)[2], float *src1,
int n);
void ff_ps_hybrid_analysis_rvv(float (*out)[2], float (*in)[2],
const float (*filter)[8][2], ptrdiff_t, int n);
void ff_ps_hybrid_analysis_ileave_rvv(float (*out)[32][2], float L[2][38][64],
int i, int len);
av_cold void ff_psdsp_init_riscv(PSDSPContext *c)
{
@ -40,5 +42,8 @@ av_cold void ff_psdsp_init_riscv(PSDSPContext *c)
c->mul_pair_single = ff_ps_mul_pair_single_rvv;
c->hybrid_analysis = ff_ps_hybrid_analysis_rvv;
}
if (flags & AV_CPU_FLAG_RVV_I32)
c->hybrid_analysis_ileave = ff_ps_hybrid_analysis_ileave_rvv;
#endif
}

35
libavcodec/riscv/aacpsdsp_rvv.S
View File

@ -149,3 +149,38 @@ func ff_ps_hybrid_analysis_rvv, zve32f
.purgem input
.purgem filter
endfunc
func ff_ps_hybrid_analysis_ileave_rvv, zve32x /* no needs for zve32f here */
slli t0, a2, 5 + 1 + 2 // ctz(32 * 2 * 4)
sh2add a1, a2, a1
add a0, a0, t0
addi a2, a2, -64
li t1, 38 * 64 * 4
li t6, 64 * 4 // (uint8_t *)L[x][j+1][i] - L[x][j][i]
add a4, a1, t1 // &L[1]
beqz a2, 3f
1:
mv t0, a0
mv t1, a1
mv t3, a3
mv t4, a4
addi a2, a2, 1
2:
vsetvli t5, t3, e32, m1, ta, ma
vlse32.v v16, (t1), t6
sub t3, t3, t5
vlse32.v v17, (t4), t6
mul t2, t5, t6
vsseg2e32.v v16, (t0)
sh3add t0, t5, t0
add t1, t1, t2
add t4, t4, t2
bnez t3, 2b
add a0, a0, 32 * 2 * 4
add a1, a1, 4
add a4, a4, 4
bnez a2, 1b
3:
ret
endfunc