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https://github.com/FFmpeg/FFmpeg.git
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f1ed351d3b
T-Head C908: h264_biweight2_8_c: 58.0 h264_biweight2_8_rvv_i32: 11.2 h264_biweight4_8_c: 106.0 h264_biweight4_8_rvv_i32: 22.7 h264_biweight8_8_c: 205.7 h264_biweight8_8_rvv_i32: 50.0 h264_biweight16_8_c: 403.5 h264_biweight16_8_rvv_i32: 83.2 SpacemiT X60: h264_weight2_8_c: 48.2 h264_weight2_8_rvv_i32: 8.2 h264_weight4_8_c: 90.5 h264_weight4_8_rvv_i32: 16.5 h264_weight8_8_c: 175.2 h264_weight8_8_rvv_i32: 38.0 h264_weight16_8_c: 342.2 h264_weight16_8_rvv_i32: 66.0
94 lines
3.7 KiB
C
94 lines
3.7 KiB
C
/*
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* Copyright © 2024 Rémi Denis-Courmont.
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "config.h"
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#include <stdint.h>
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#include <string.h>
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#include "libavutil/attributes.h"
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#include "libavutil/cpu.h"
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#include "libavutil/riscv/cpu.h"
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#include "libavcodec/h264dsp.h"
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extern const struct {
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const h264_weight_func weight;
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const h264_biweight_func biweight;
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} ff_h264_weight_funcs_8_rvv[];
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void ff_h264_v_loop_filter_luma_8_rvv(uint8_t *pix, ptrdiff_t stride,
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int alpha, int beta, int8_t *tc0);
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void ff_h264_h_loop_filter_luma_8_rvv(uint8_t *pix, ptrdiff_t stride,
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int alpha, int beta, int8_t *tc0);
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void ff_h264_h_loop_filter_luma_mbaff_8_rvv(uint8_t *pix, ptrdiff_t stride,
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int alpha, int beta, int8_t *tc0);
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void ff_h264_idct_add_8_rvv(uint8_t *dst, int16_t *block, int stride);
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void ff_h264_idct8_add_8_rvv(uint8_t *dst, int16_t *block, int stride);
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void ff_h264_idct_add16_8_rvv(uint8_t *dst, const int *blockoffset,
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int16_t *block, int stride,
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const uint8_t nnzc[5 * 8]);
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void ff_h264_idct_add16intra_8_rvv(uint8_t *dst, const int *blockoffset,
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int16_t *block, int stride,
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const uint8_t nnzc[5 * 8]);
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void ff_h264_idct8_add4_8_rvv(uint8_t *dst, const int *blockoffset,
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int16_t *block, int stride,
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const uint8_t nnzc[5 * 8]);
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extern int ff_startcode_find_candidate_rvb(const uint8_t *, int);
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extern int ff_startcode_find_candidate_rvv(const uint8_t *, int);
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av_cold void ff_h264dsp_init_riscv(H264DSPContext *dsp, const int bit_depth,
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const int chroma_format_idc)
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{
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#if HAVE_RV
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int flags = av_get_cpu_flags();
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if (flags & AV_CPU_FLAG_RVB_BASIC)
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dsp->startcode_find_candidate = ff_startcode_find_candidate_rvb;
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# if HAVE_RVV
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if (flags & AV_CPU_FLAG_RVV_I32) {
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if (bit_depth == 8 && ff_rv_vlen_least(128)) {
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for (int i = 0; i < 4; i++) {
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dsp->weight_h264_pixels_tab[i] =
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ff_h264_weight_funcs_8_rvv[i].weight;
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dsp->biweight_h264_pixels_tab[i] =
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ff_h264_weight_funcs_8_rvv[i].biweight;
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}
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dsp->h264_v_loop_filter_luma = ff_h264_v_loop_filter_luma_8_rvv;
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dsp->h264_h_loop_filter_luma = ff_h264_h_loop_filter_luma_8_rvv;
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dsp->h264_h_loop_filter_luma_mbaff =
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ff_h264_h_loop_filter_luma_mbaff_8_rvv;
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dsp->h264_idct_add = ff_h264_idct_add_8_rvv;
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dsp->h264_idct8_add = ff_h264_idct8_add_8_rvv;
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# if __riscv_xlen == 64
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dsp->h264_idct_add16 = ff_h264_idct_add16_8_rvv;
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dsp->h264_idct_add16intra = ff_h264_idct_add16intra_8_rvv;
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dsp->h264_idct8_add4 = ff_h264_idct8_add4_8_rvv;
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# endif
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}
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dsp->startcode_find_candidate = ff_startcode_find_candidate_rvv;
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}
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# endif
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#endif
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}
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