gx
dcecd42de4
Snapshot FFmpeg n7.1 (release tag) с применённым patch'ем для cuframes input format. Используется как FFMPEG_REPO_OVERRIDE в NickM-27/FFmpeg-Builds fork для статической сборки patched binary под Frigate (Debian 12 / glibc 2.36). Apply changes: + libavformat/cuframesdec.c (новый — реализация демуксера) M libavformat/Makefile (CONFIG_CUFRAMES_DEMUXER target) M libavformat/allformats.c (extern declaration) M configure (--enable-libcuframes option + dep check) Patch source: https://git.goldix.org/gx/cuframes (filter/ffmpeg-7.1-cuframes-demuxer.patch) History сброшена (snapshot вместо fork) потому что upstream shallow clone не позволял push в gitea. Полная история FFmpeg — на github.com/FFmpeg/FFmpeg n7.1.
62 lines
1.6 KiB
ArmAsm
62 lines
1.6 KiB
ArmAsm
/*
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* Copyright © 2023 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 "libavutil/riscv/asm.S"
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func ff_ac3_exponent_min_rvb, zbb
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lpad 0
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beqz a1, 3f
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1:
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addi a2, a2, -1
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lb t3, (a0)
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addi t0, a0, 256
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mv t1, a1
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2:
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lb t4, (t0)
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addi t1, t1, -1
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addi t0, t0, 256
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minu t3, t3, t4
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bnez t1, 2b
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sb t3, (a0)
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addi a0, a0, 1
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bnez a2, 1b
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3:
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ret
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endfunc
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func ff_extract_exponents_rvb, zbb
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lpad 0
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1:
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lw t0, (a1)
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addi a0, a0, 1
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neg t1, t0
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addi a1, a1, 4
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max t0, t0, t1
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addi a2, a2, -1
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clz t0, t0
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addi t0, t0, 24 - __riscv_xlen
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sb t0, -1(a0)
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bgtz a2, 1b
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ret
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endfunc
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