[FFmpeg-cvslog] lavu/float_dsp: adjust multipler in R-V V fmul_window

[Rémi Denis-Courmont]

ffmpeg | branch: master | Rémi Denis-Courmont <remi at remlab.net> | Wed Oct  4 19:31:13 2023 +0300| [9091ffb006def39523ac2d21d6725ef1d82ab3fc] | committer: Rémi Denis-Courmont

lavu/float_dsp: adjust multipler in R-V V fmul_window

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.

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=9091ffb006def39523ac2d21d6725ef1d82ab3fc
---

 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