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lavc/sbrdsp: R-V V sbr_hf_g_filt
hf_g_filt_c: 1552.5 hf_g_filt_rvv_f32: 679.5
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@ -26,6 +26,8 @@
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void ff_sbr_sum64x5_rvv(float *z);
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float ff_sbr_sum_square_rvv(float (*x)[2], int n);
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void ff_sbr_neg_odd_64_rvv(float *x);
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void ff_sbr_hf_g_filt_rvv(float (*Y)[2], const float (*X_high)[40][2],
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const float *g_filt, int m_max, intptr_t ixh);
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av_cold void ff_sbrdsp_init_riscv(SBRDSPContext *c)
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{
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@ -35,6 +37,7 @@ av_cold void ff_sbrdsp_init_riscv(SBRDSPContext *c)
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if ((flags & AV_CPU_FLAG_RVV_F32) && (flags & AV_CPU_FLAG_RVB_ADDR)) {
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c->sum64x5 = ff_sbr_sum64x5_rvv;
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c->sum_square = ff_sbr_sum_square_rvv;
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c->hf_g_filt = ff_sbr_hf_g_filt_rvv;
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}
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#if __riscv_xlen >= 64
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if ((flags & AV_CPU_FLAG_RVV_I64) && (flags & AV_CPU_FLAG_RVB_ADDR))
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@ -84,3 +84,23 @@ func ff_sbr_neg_odd_64_rvv, zve64x
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ret
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endfunc
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#endif
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func ff_sbr_hf_g_filt_rvv, zve32f
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li t1, 40 * 2 * 4
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sh3add a1, a4, a1
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1:
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vsetvli t0, a3, e32, m4, ta, ma
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vlsseg2e32.v v16, (a1), t1
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mul t2, t0, t1
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vle32.v v8, (a2)
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sub a3, a3, t0
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vfmul.vv v16, v16, v8
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add a1, t2, a1
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vfmul.vv v20, v20, v8
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sh2add a2, t0, a2
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vsseg2e32.v v16, (a0)
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sh3add a0, t0, a0
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bnez a3, 1b
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ret
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endfunc
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