The reason for using m1+le8 instead of stride load + larger group
multipliers is the same as in "[FFmpeg-devel] [PATCH 1/7] lavc/me_cmp: R-V
V pix_abs."
In the test, there is
#define src (buf + 2 * SRC_BUF_STRIDE + 2 + 1)
Therefore, not using e8 will result : (fatal signal 7: Bus error).
From 6daaabd19c26b01b948804e4ec84a6f606746ec7 Mon Sep 17 00:00:00 2001
From: sunyuechi
Date: Mon, 19 Feb 2024 18:03:58 +0800
Subject: [PATCH] lavc/vp8dsp: R-V V put_vp8_pixels
C908:
vp8_put_pixels4_c: 87.5
vp8_put_pixels4_rvv_i32: 42.7
vp8_put_pixels8_c: 284.5
vp8_put_pixels8_rvv_i32: 77.7
vp8_put_pixels16_c: 1087.7
vp8_put_pixels16_rvv_i32: 108.0
---
libavcodec/riscv/vp8dsp.h | 75 ++
libavcodec/riscv/vp8dsp_init.c | 22 ++
libavcodec/riscv/vp8dsp_rvv.S | 27
libavcodec/vp8dsp.c| 2 +
libavcodec/vp8dsp.h| 1 +
5 files changed, 127 insertions(+)
create mode 100644 libavcodec/riscv/vp8dsp.h
diff --git a/libavcodec/riscv/vp8dsp.h b/libavcodec/riscv/vp8dsp.h
new file mode 100644
index 00..971c5c0a96
--- /dev/null
+++ b/libavcodec/riscv/vp8dsp.h
@@ -0,0 +1,75 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_RISCV_VP8DSP_H
+#define AVCODEC_RISCV_VP8DSP_H
+
+#include "libavcodec/vp8dsp.h"
+
+#define VP8_LF_Y(hv, inner, opt) \
+void ff_vp8_##hv##_loop_filter16##inner##_##opt(uint8_t *dst,\
+ptrdiff_t stride,\
+int flim_E, int flim_I, \
+int hev_thresh)
+
+#define VP8_LF_UV(hv, inner, opt)\
+void ff_vp8_##hv##_loop_filter8uv##inner##_##opt(uint8_t *dstU, \
+ uint8_t *dstV, \
+ ptrdiff_t stride, \
+ int flim_E, int flim_I, \
+ int hev_thresh)
+
+#define VP8_LF_SIMPLE(hv, opt) \
+void ff_vp8_##hv##_loop_filter16_simple_##opt(uint8_t *dst, \
+ ptrdiff_t stride, \
+ int flim)
+
+#define VP8_LF_HV(inner, opt) \
+VP8_LF_Y(h, inner, opt); \
+VP8_LF_Y(v, inner, opt); \
+VP8_LF_UV(h, inner, opt); \
+VP8_LF_UV(v, inner, opt)
+
+#define VP8_LF(opt) \
+VP8_LF_HV(, opt); \
+VP8_LF_HV(_inner, opt); \
+VP8_LF_SIMPLE(h, opt); \
+VP8_LF_SIMPLE(v, opt)
+
+#define VP8_MC(n, opt) \
+void ff_put_vp8_##n##_##opt(uint8_t *dst, ptrdiff_t dststride, \
+const uint8_t *src, ptrdiff_t srcstride,\
+int h, int x, int y)
+
+#define VP8_EPEL(w, opt)\
+VP8_MC(pixels ## w, opt); \
+VP8_MC(epel ## w ## _h4, opt); \
+VP8_MC(epel ## w ## _h6, opt); \
+VP8_MC(epel ## w ## _v4, opt); \
+VP8_MC(epel ## w ## _h4v4, opt);\
+VP8_MC(epel ## w ## _h6v4, opt);\
+VP8_MC(epel ## w ## _v6, opt); \
+VP8_MC(epel ## w ## _h4v6, opt);\
+VP8_MC(epel ## w ## _h6v6, opt)
+
+#define VP8_BILIN(w, opt) \
+VP8_MC(bilin ## w ## _h, opt); \
+VP8_MC(bilin ## w ## _v, opt); \
+VP8_MC(bilin ## w ## _hv, opt)
+
+#endif /* AVCODEC_RISCV_VP8DSP_H */
diff --git a/libavcodec/riscv/vp8dsp_init.c b/libavcodec/riscv/vp8dsp_init.c
index af57aabb71..c364de3dc9 100644
--- a/libavcodec/riscv/vp8dsp_init.c
+++ b/libavcodec/riscv/vp8dsp_init.c
@@ -24,11 +24,33 @@
#include "libavutil/cpu.h"
#include "libavutil/riscv/cpu.h"
#include "libavcodec/vp8dsp.h"
+#include "vp8dsp.h"
void f
