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Code Issues Releases Activity

lavc/flacdsp: R-V V flac_wasted32

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T-Head C908:
flac_wasted_32_c:       949.0
flac_wasted_32_rvv_i32: 278.7
This commit is contained in:
Rémi Denis-Courmont 2024-05-12 19:40:30 +03:00
parent 83e5fdd3f4
commit 7b47099bc0
2 changed files with 21 additions and 1 deletions
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7
libavcodec/riscv/flacdsp_init.c
View File

@ -31,6 +31,7 @@ void ff_flac_lpc32_rvv(int32_t *decoded, const int coeffs[32],
int pred_order, int qlevel, int len);
void ff_flac_lpc32_rvv_simple(int32_t *decoded, const int coeffs[32],
int pred_order, int qlevel, int len);
void ff_flac_wasted32_rvv(int32_t *, int shift, int len);
void ff_flac_decorrelate_indep2_16_rvv(uint8_t **out, int32_t **in,
int channels, int len, int shift);
void ff_flac_decorrelate_indep4_16_rvv(uint8_t **out, int32_t **in,
@ -79,7 +80,11 @@ av_cold void ff_flacdsp_init_riscv(FLACDSPContext *c, enum AVSampleFormat fmt,
else
c->lpc32 = ff_flac_lpc32_rvv;
}
# endif
c->wasted32 = ff_flac_wasted32_rvv;
# if (__riscv_xlen >= 64)
switch (fmt) {
case AV_SAMPLE_FMT_S16:
switch (channels) {
@ -119,8 +124,8 @@ av_cold void ff_flacdsp_init_riscv(FLACDSPContext *c, enum AVSampleFormat fmt,
c->decorrelate[2] = ff_flac_decorrelate_rs_32_rvv;
c->decorrelate[3] = ff_flac_decorrelate_ms_32_rvv;
break;
# endif
}
# endif
}
#endif
}

15
libavcodec/riscv/flacdsp_rvv.S
View File

@ -100,7 +100,22 @@ func ff_flac_lpc32_rvv_simple, zve64x
ret
endfunc
#endif
func ff_flac_wasted32_rvv, zve32x
1:
vsetvli t0, a2, e32, m8, ta, ma
vle32.v v8, (a0)
sub a2, a2, t0
vsll.vx v8, v8, a1
vse32.v v8, (a0)
sh2add a0, t0, a0
bnez a2, 1b
ret
endfunc
#if (__riscv_xlen == 64)
func ff_flac_decorrelate_indep2_16_rvv, zve32x
ld a0, (a0)
ld a2, 8(a1)