/* * Copyright (c) 2024 RĂ©mi Denis-Courmont. * * 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 */ #include "config.h" #include "libavutil/attributes.h" #include "libavutil/cpu.h" #include "libavutil/riscv/cpu.h" #include "libavcodec/vp8dsp.h" void ff_vp7_luma_dc_wht_rvv(int16_t block[4][4][16], int16_t dc[16]); void ff_vp7_idct_add_rvv(uint8_t *dst, int16_t block[16], ptrdiff_t stride); void ff_vp78_idct_dc_add_rvv(uint8_t *, int16_t block[16], ptrdiff_t, int dc); void ff_vp7_idct_dc_add4y_rvv(uint8_t *dst, int16_t block[4][16], ptrdiff_t); void ff_vp7_idct_dc_add4uv_rvv(uint8_t *dst, int16_t block[4][16], ptrdiff_t); static void ff_vp7_idct_dc_add_rvv(uint8_t *dst, int16_t block[16], ptrdiff_t stride) { int dc = (23170 * (23170 * block[0] >> 14) + 0x20000) >> 18; ff_vp78_idct_dc_add_rvv(dst, block, stride, dc); } av_cold void ff_vp7dsp_init_riscv(VP8DSPContext *c) { #if HAVE_RVV int flags = av_get_cpu_flags(); if ((flags & AV_CPU_FLAG_RVV_I32) && (flags & AV_CPU_FLAG_RVB_ADDR) && ff_rv_vlen_least(128)) { #if __riscv_xlen >= 64 c->vp8_luma_dc_wht = ff_vp7_luma_dc_wht_rvv; c->vp8_idct_add = ff_vp7_idct_add_rvv; #endif c->vp8_idct_dc_add = ff_vp7_idct_dc_add_rvv; c->vp8_idct_dc_add4y = ff_vp7_idct_dc_add4y_rvv; if (flags & AV_CPU_FLAG_RVV_I64) c->vp8_idct_dc_add4uv = ff_vp7_idct_dc_add4uv_rvv; } #endif }