From: Rémi Denis-Courmont <[email protected]>
---
libavcodec/riscv/pixblockdsp_init.c | 4 ++++
libavcodec/riscv/pixblockdsp_rvv.S | 16 ++++++++++++++++
2 files changed, 20 insertions(+)
diff --git a/libavcodec/riscv/pixblockdsp_init.c
b/libavcodec/riscv/pixblockdsp_init.c
index bbda381c12..aa39a8a665 100644
--- a/libavcodec/riscv/pixblockdsp_init.c
+++ b/libavcodec/riscv/pixblockdsp_init.c
@@ -36,6 +36,8 @@ void ff_get_pixels_8_rvv(int16_t *block, const uint8_t
*pixels,
ptrdiff_t stride);
void ff_get_pixels_16_rvv(int16_t *block, const uint8_t *pixels,
ptrdiff_t stride);
+void ff_diff_pixels_rvv(int16_t *block, const uint8_t *s1, const uint8_t *s2,
+ ptrdiff_t stride);
av_cold void ff_pixblockdsp_init_riscv(PixblockDSPContext *c,
AVCodecContext *avctx,
@@ -56,6 +58,8 @@ av_cold void ff_pixblockdsp_init_riscv(PixblockDSPContext *c,
c->get_pixels_unaligned = c->get_pixels = ff_get_pixels_16_rvv;
else
c->get_pixels_unaligned = c->get_pixels = ff_get_pixels_8_rvv;
+
+ c->diff_pixels_unaligned = c->diff_pixels = ff_diff_pixels_rvv;
}
#endif
}
diff --git a/libavcodec/riscv/pixblockdsp_rvv.S
b/libavcodec/riscv/pixblockdsp_rvv.S
index 5bf83ebe5e..62cdfe22b1 100644
--- a/libavcodec/riscv/pixblockdsp_rvv.S
+++ b/libavcodec/riscv/pixblockdsp_rvv.S
@@ -42,3 +42,19 @@ func ff_get_pixels_16_rvv, zve32x
vsseg8e16.v v0, (a0)
ret
endfunc
+
+func ff_diff_pixels_rvv, zve32x
+ vsetivli zero, 8, e8, mf2, ta, ma
+ vlsseg8e8.v v16, (a1), a3
+ vlsseg8e8.v v24, (a2), a3
+ vwsubu.vv v8, v16, v24
+ vwsubu.vv v9, v17, v25
+ vwsubu.vv v10, v18, v26
+ vwsubu.vv v11, v19, v27
+ vwsubu.vv v12, v20, v28
+ vwsubu.vv v13, v21, v29
+ vwsubu.vv v14, v22, v30
+ vwsubu.vv v15, v23, v31
+ vsseg8e16.v v8, (a0)
+ ret
+endfunc
--
2.37.2
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