* [FFmpeg-devel] [PATCH] lavu/float_dsp: adjust multipler in R-V V fmul_window
@ 2023-10-04 18:34 Rémi Denis-Courmont
0 siblings, 0 replies; only message in thread
From: Rémi Denis-Courmont @ 2023-10-04 18:34 UTC (permalink / raw)
To: ffmpeg-devel
The gather index vector is only used as double-length (due to register
pressure), so no need to initialise it for quad-length. Basically this
matches the multiplier in the prologue to the the multipler in the loop.
---
libavutil/riscv/float_dsp_rvv.S | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavutil/riscv/float_dsp_rvv.S b/libavutil/riscv/float_dsp_rvv.S
index 91b70bf148..a2f9488249 100644
--- a/libavutil/riscv/float_dsp_rvv.S
+++ b/libavutil/riscv/float_dsp_rvv.S
@@ -75,7 +75,7 @@ endfunc
func ff_vector_fmul_window_rvv, zve32f
// a0: dst, a1: src0, a2: src1, a3: window, a4: length
- vsetvli t0, zero, e16, m4, ta, ma
+ vsetvli t0, zero, e16, m2, ta, ma
sh2add a2, a4, a2
vid.v v0
sh3add t3, a4, a3
--
2.42.0
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2023-10-04 18:34 [FFmpeg-devel] [PATCH] lavu/float_dsp: adjust multipler in R-V V fmul_window Rémi Denis-Courmont
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