From: Rémi Denis-Courmont <r...@remlab.net> This uses the following vectorisation:
for (i = 0; i < blocksize; i++) { ang[i] = mag[i] - copysignf(fmaxf(ang[i], 0.f), mag[i]); mag[i] = mag[i] - copysignf(fminf(ang[i], 0.f), mag[i]); } --- libavcodec/riscv/Makefile | 2 ++ libavcodec/riscv/vorbisdsp_init.c | 37 ++++++++++++++++++++++++++ libavcodec/riscv/vorbisdsp_rvv.S | 44 +++++++++++++++++++++++++++++++ libavcodec/vorbisdsp.c | 2 ++ libavcodec/vorbisdsp.h | 1 + 5 files changed, 86 insertions(+) create mode 100644 libavcodec/riscv/vorbisdsp_init.c create mode 100644 libavcodec/riscv/vorbisdsp_rvv.S diff --git a/libavcodec/riscv/Makefile b/libavcodec/riscv/Makefile index 682174e875..03a95301d7 100644 --- a/libavcodec/riscv/Makefile +++ b/libavcodec/riscv/Makefile @@ -5,3 +5,5 @@ OBJS-$(CONFIG_FMTCONVERT) += riscv/fmtconvert_init.o RVV-OBJS-$(CONFIG_FMTCONVERT) += riscv/fmtconvert_rvv.o OBJS-$(CONFIG_PIXBLOCKDSP) += riscv/pixblockdsp_init.o \ riscv/pixblockdsp_rvi.o +OBJS-$(CONFIG_VORBIS_DECODER) += riscv/vorbisdsp_init.o +RVV-OBJS-$(CONFIG_VORBIS_DECODER) += riscv/vorbisdsp_rvv.o diff --git a/libavcodec/riscv/vorbisdsp_init.c b/libavcodec/riscv/vorbisdsp_init.c new file mode 100644 index 0000000000..d8432bc0f8 --- /dev/null +++ b/libavcodec/riscv/vorbisdsp_init.c @@ -0,0 +1,37 @@ +/* + * Copyright © 2022 Rémi 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 "libavcodec/vorbisdsp.h" + +void ff_vorbis_inverse_coupling_rvv(float *mag, float *ang, + ptrdiff_t blocksize); + +av_cold void ff_vorbisdsp_init_riscv(VorbisDSPContext *c) +{ +#if HAVE_RVV + int flags = av_get_cpu_flags(); + + if (flags & AV_CPU_FLAG_RV_ZVE32F) + c->vorbis_inverse_coupling = ff_vorbis_inverse_coupling_rvv; +#endif +} diff --git a/libavcodec/riscv/vorbisdsp_rvv.S b/libavcodec/riscv/vorbisdsp_rvv.S new file mode 100644 index 0000000000..e8953fb548 --- /dev/null +++ b/libavcodec/riscv/vorbisdsp_rvv.S @@ -0,0 +1,44 @@ +/* + * Copyright © 2022 Rémi 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/riscv/asm.S" + +func ff_vorbis_inverse_coupling_rvv, zve32f + fmv.w.x ft0, zero +1: + vsetvli t0, a2, e32, m1, ta, ma + vle32.v v16, (a1) + sub a2, a2, t0 + vle32.v v24, (a0) + vfmax.vf v8, v16, ft0 + vfmin.vf v16, v16, ft0 + vfsgnj.vv v8, v8, v24 + vfsgnj.vv v16, v16, v24 + vfsub.vv v8, v24, v8 + vfsub.vv v24, v24, v16 + vse32.v v8, (a1) + sh2add a1, t0, a1 + vse32.v v24, (a0) + sh2add a0, t0, a0 + bnez a2, 1b + + ret +endfunc diff --git a/libavcodec/vorbisdsp.c b/libavcodec/vorbisdsp.c index 693c44dfcb..70022bd262 100644 --- a/libavcodec/vorbisdsp.c +++ b/libavcodec/vorbisdsp.c @@ -53,6 +53,8 @@ av_cold void ff_vorbisdsp_init(VorbisDSPContext *dsp) ff_vorbisdsp_init_arm(dsp); #elif ARCH_PPC ff_vorbisdsp_init_ppc(dsp); +#elif ARCH_RISCV + ff_vorbisdsp_init_riscv(dsp); #elif ARCH_X86 ff_vorbisdsp_init_x86(dsp); #endif diff --git a/libavcodec/vorbisdsp.h b/libavcodec/vorbisdsp.h index 1775a92cf2..5c369ecf22 100644 --- a/libavcodec/vorbisdsp.h +++ b/libavcodec/vorbisdsp.h @@ -34,5 +34,6 @@ void ff_vorbisdsp_init_aarch64(VorbisDSPContext *dsp); void ff_vorbisdsp_init_x86(VorbisDSPContext *dsp); void ff_vorbisdsp_init_arm(VorbisDSPContext *dsp); void ff_vorbisdsp_init_ppc(VorbisDSPContext *dsp); +void ff_vorbisdsp_init_riscv(VorbisDSPContext *dsp); #endif /* AVCODEC_VORBISDSP_H */ -- 2.37.2 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".