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author | Rémi Denis-Courmont <remi@remlab.net> | 2023-12-08 17:42:22 +0200 |
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committer | Rémi Denis-Courmont <remi@remlab.net> | 2023-12-11 18:17:43 +0200 |
commit | 272d0c164d990cafc52a43bbceb1fc0445a2d22c (patch) | |
tree | 27f720192cf6b9227301faf71f6c9cab0e6011d0 /libavcodec/riscv/lpc_init.c | |
parent | 341a483b0868d30d17bf8d5e82facb5e0944a6fe (diff) | |
download | ffmpeg-272d0c164d990cafc52a43bbceb1fc0445a2d22c.tar.gz |
lavc/lpc: R-V V apply_welch_window
apply_welch_window_even_c: 617.5
apply_welch_window_even_rvv_f64: 235.0
apply_welch_window_odd_c: 709.0
apply_welch_window_odd_rvv_f64: 256.5
Diffstat (limited to 'libavcodec/riscv/lpc_init.c')
-rw-r--r-- | libavcodec/riscv/lpc_init.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/libavcodec/riscv/lpc_init.c b/libavcodec/riscv/lpc_init.c new file mode 100644 index 0000000000..c16e5745f0 --- /dev/null +++ b/libavcodec/riscv/lpc_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/lpc.h" + +void ff_lpc_apply_welch_window_rvv(const int32_t *, ptrdiff_t, double *); + +av_cold void ff_lpc_init_riscv(LPCContext *c) +{ +#if HAVE_RVV && (__riscv_xlen >= 64) + int flags = av_get_cpu_flags(); + + if ((flags & AV_CPU_FLAG_RVV_F64) && (flags & AV_CPU_FLAG_RVB_ADDR)) + c->lpc_apply_welch_window = ff_lpc_apply_welch_window_rvv; +#endif +} |